From 2faa16417084e4b3f9a448127f361dcb336d3ce6 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Thu, 19 Jun 2025 10:21:06 -0700
Subject: [PATCH 001/178] fix linting (#25194)

---
 python_files/printEnvVariablesToFile.py   | 2 +-
 python_files/unittestadapter/execution.py | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/python_files/printEnvVariablesToFile.py b/python_files/printEnvVariablesToFile.py
index eae01b3d073c..f6013a8c24cf 100644
--- a/python_files/printEnvVariablesToFile.py
+++ b/python_files/printEnvVariablesToFile.py
@@ -12,5 +12,5 @@
     raise ValueError("Missing output file argument")
 
 with open(output_file, "w") as outfile:  # noqa: PTH123
-    for key, val in os.environ.items():
+    for key, val in os.environ.items():  # noqa: FURB122
         outfile.write(f"{key}={val}\n")
diff --git a/python_files/unittestadapter/execution.py b/python_files/unittestadapter/execution.py
index 176703c20ce0..a0a48c61470a 100644
--- a/python_files/unittestadapter/execution.py
+++ b/python_files/unittestadapter/execution.py
@@ -189,8 +189,8 @@ def run_tests(
     pattern: str,
     top_level_dir: Optional[str],
     verbosity: int,
-    failfast: Optional[bool],
-    locals_: Optional[bool] = None,
+    failfast: Optional[bool],  # noqa: FBT001
+    locals_: Optional[bool] = None,  # noqa: FBT001
 ) -> ExecutionPayloadDict:
     cwd = os.path.abspath(start_dir)  # noqa: PTH100
     if "/" in start_dir:  #  is a subdir

From df13df0f99d7fd7dc10c7f8f44e2a6696ccfe795 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Mon, 23 Jun 2025 13:11:13 -0700
Subject: [PATCH 002/178] add python.useEnvironmentsExtension (#25204)

step 1 of insiders envs ext rollout. In the activation function, set
`python.config.useEnvironmentsExtension:true` (so for everyone with envs
extension installed). Result: all users with extension envs extension
installed (and using it while we have this bake) will get this in their
user settings and thus when experimentation starts they will override
any control/treatment group.
---
 package.json     | 10 ++++++++++
 package.nls.json |  1 +
 2 files changed, 11 insertions(+)

diff --git a/package.json b/package.json
index 0414e9df1b04..47cb84c49fbd 100644
--- a/package.json
+++ b/package.json
@@ -440,6 +440,16 @@
                     "scope": "resource",
                     "type": "string"
                 },
+                "python.useEnvironmentsExtension": {
+                    "default": false,
+                    "description": "%python.useEnvironmentsExtension.description%",
+                    "scope": "machine-overridable",
+                    "type": "boolean",
+                    "tags": [
+                        "onExP",
+                        "preview"
+                    ]
+                },
                 "python.experiments.enabled": {
                     "default": true,
                     "description": "%python.experiments.enabled.description%",
diff --git a/package.nls.json b/package.nls.json
index b6ba75b332f2..560e78de05a5 100644
--- a/package.nls.json
+++ b/package.nls.json
@@ -38,6 +38,7 @@
     "python.debugger.deprecatedMessage": "This configuration will be deprecated soon. Please replace `python` with `debugpy` to use the new Python Debugger extension.",
     "python.defaultInterpreterPath.description": "Path to default Python to use when extension loads up for the first time, no longer used once an interpreter is selected for the workspace. See [here](https://aka.ms/AAfekmf) to understand when this is used",
     "python.envFile.description": "Absolute path to a file containing environment variable definitions.",
+    "python.useEnvironmentsExtension.description": "Enables the Python Environments extension.",
     "python.experiments.enabled.description": "Enables A/B tests experiments in the Python extension. If enabled, you may get included in proposed enhancements and/or features.",
     "python.experiments.optInto.description": "List of experiments to opt into. If empty, user is assigned the default experiment groups. See [here](https://github.com/microsoft/vscode-python/wiki/AB-Experiments) for more details.",
     "python.experiments.optOutFrom.description": "List of experiments to opt out of. If empty, user is assigned the default experiment groups. See [here](https://github.com/microsoft/vscode-python/wiki/AB-Experiments) for more details.",

From cde514f6508f848022740703bf4b56706ae8665f Mon Sep 17 00:00:00 2001
From: Anthony Kim <62267334+anthonykim1@users.noreply.github.com>
Date: Mon, 23 Jun 2025 16:23:50 -0700
Subject: [PATCH 003/178] Update node to 20.18.1 (#25205)

We merged https://github.com/microsoft/vscode-python/pull/25168 into
release branch.
Need to update main branch accodingly.
---
 .github/workflows/build.yml          | 2 +-
 .github/workflows/pr-check.yml       | 2 +-
 build/azure-pipeline.pre-release.yml | 2 +-
 build/azure-pipeline.stable.yml      | 2 +-
 build/azure-pipelines/pipeline.yml   | 6 +++---
 pythonExtensionApi/package-lock.json | 2 +-
 pythonExtensionApi/package.json      | 2 +-
 7 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 78cbd9dfd0e4..ca75f6ef7727 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -11,7 +11,7 @@ on:
 permissions: {}
 
 env:
-  NODE_VERSION: 20.18.0
+  NODE_VERSION: 20.18.1
   PYTHON_VERSION: '3.10' # YML treats 3.10 the number as 3.1, so quotes around 3.10
   # Force a path with spaces and to test extension works in these scenarios
   # Unicode characters are causing 2.7 failures so skip that for now.
diff --git a/.github/workflows/pr-check.yml b/.github/workflows/pr-check.yml
index 81c427a31c7b..65e80e1f6280 100644
--- a/.github/workflows/pr-check.yml
+++ b/.github/workflows/pr-check.yml
@@ -10,7 +10,7 @@ on:
 permissions: {}
 
 env:
-  NODE_VERSION: 20.18.0
+  NODE_VERSION: 20.18.1
   PYTHON_VERSION: '3.10' # YML treats 3.10 the number as 3.1, so quotes around 3.10
   MOCHA_REPORTER_JUNIT: true # Use the mocha-multi-reporters and send output to both console (spec) and JUnit (mocha-junit-reporter). Also enables a reporter which exits the process running the tests if it haven't already.
   ARTIFACT_NAME_VSIX: ms-python-insiders-vsix
diff --git a/build/azure-pipeline.pre-release.yml b/build/azure-pipeline.pre-release.yml
index 6c6600365529..ab087673f1e7 100644
--- a/build/azure-pipeline.pre-release.yml
+++ b/build/azure-pipeline.pre-release.yml
@@ -66,7 +66,7 @@ extends:
     buildSteps:
       - task: NodeTool@0
         inputs:
-          versionSpec: '20.18.0'
+          versionSpec: '20.18.1'
         displayName: Select Node version
 
       - task: UsePythonVersion@0
diff --git a/build/azure-pipeline.stable.yml b/build/azure-pipeline.stable.yml
index 76eb7f62b4f7..11de6b0806d4 100644
--- a/build/azure-pipeline.stable.yml
+++ b/build/azure-pipeline.stable.yml
@@ -60,7 +60,7 @@ extends:
     buildSteps:
       - task: NodeTool@0
         inputs:
-          versionSpec: '20.18.0'
+          versionSpec: '20.18.1'
         displayName: Select Node version
 
       - task: UsePythonVersion@0
diff --git a/build/azure-pipelines/pipeline.yml b/build/azure-pipelines/pipeline.yml
index 7b611de683a8..ebb8a141d9d3 100644
--- a/build/azure-pipelines/pipeline.yml
+++ b/build/azure-pipelines/pipeline.yml
@@ -37,13 +37,13 @@ extends:
         testPlatforms:
           - name: Linux
             nodeVersions:
-              - 20.18.0
+              - 20.18.1
           - name: MacOS
             nodeVersions:
-              - 20.18.0
+              - 20.18.1
           - name: Windows
             nodeVersions:
-              - 20.18.0
+              - 20.18.1
         testSteps:
           - template: /build/azure-pipelines/templates/test-steps.yml@self
             parameters:
diff --git a/pythonExtensionApi/package-lock.json b/pythonExtensionApi/package-lock.json
index ad49ed836900..ec175f1aaa5d 100644
--- a/pythonExtensionApi/package-lock.json
+++ b/pythonExtensionApi/package-lock.json
@@ -14,7 +14,7 @@
                 "typescript": "~5.2"
             },
             "engines": {
-                "node": ">=20.18.0",
+                "node": ">=20.18.1",
                 "vscode": "^1.93.0"
             }
         },
diff --git a/pythonExtensionApi/package.json b/pythonExtensionApi/package.json
index d7d976642bb3..9a27e5a09b0a 100644
--- a/pythonExtensionApi/package.json
+++ b/pythonExtensionApi/package.json
@@ -13,7 +13,7 @@
     "main": "./out/main.js",
     "types": "./out/main.d.ts",
     "engines": {
-        "node": ">=20.18.0",
+        "node": ">=20.18.1",
         "vscode": "^1.93.0"
     },
     "license": "MIT",

From e5e52411d72a258fd55bcce2285680aa190006ca Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Tue, 24 Jun 2025 20:06:34 +0000
Subject: [PATCH 004/178] Bump pbkdf2 from 3.0.17 to 3.1.3 (#25207)

Bumps [pbkdf2](https://github.com/crypto-browserify/pbkdf2) from 3.0.17
to 3.1.3.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/browserify/pbkdf2/blob/master/CHANGELOG.md">pbkdf2's
changelog</a>.</em></p>
<blockquote>
<h2><a
href="https://github.com/browserify/pbkdf2/compare/v3.1.2...v3.1.3">v3.1.3</a>
- 2025-06-20</h2>
<h3>Commits</h3>
<ul>
<li>Only apps should have lockfiles <a
href="https://github.com/browserify/pbkdf2/commit/8b067308eedcc3b7da3e06202d437ff532de75bd"><code>8b06730</code></a></li>
<li>[lint] fix whitespace <a
href="https://github.com/browserify/pbkdf2/commit/9a76e2f37ef4541aeff92d97b7335b7fa6e989a8"><code>9a76e2f</code></a></li>
<li>[lint] fix parens/curlies/semis/etc <a
href="https://github.com/browserify/pbkdf2/commit/6fd84bf64a423d207d9e665f3e9fd88b148c4480"><code>6fd84bf</code></a></li>
<li>[meta] add <code>auto-changelog</code> <a
href="https://github.com/browserify/pbkdf2/commit/796c38d428ed9546e7ddfbb38322faa99921d716"><code>796c38d</code></a></li>
<li>[Tests] fix tests in node 17 <a
href="https://github.com/browserify/pbkdf2/commit/3661fb0156177bfe380c7bcc133917e7ee501bc7"><code>3661fb0</code></a></li>
<li>Revert &quot;[Tests] fix tests in node &lt; 3&quot; <a
href="https://github.com/browserify/pbkdf2/commit/7431b5766805cbf880c1b3d0f38d484357844ff7"><code>7431b57</code></a></li>
<li>[Tests] fix tests in node &lt; 3 <a
href="https://github.com/browserify/pbkdf2/commit/eb9f97a66ed83836bebc4ff563a1588248708501"><code>eb9f97a</code></a></li>
<li>[Fix] ensure unknown algorithms throw + known ones match node <a
href="https://github.com/browserify/pbkdf2/commit/26d4fd391e00ed806840ea1ef7341937985f4ba8"><code>26d4fd3</code></a></li>
<li>[Tests] add GHA, always run nyc <a
href="https://github.com/browserify/pbkdf2/commit/513906a735e80a0e125e1a3363c5dbe90bb34bb7"><code>513906a</code></a></li>
<li>[lint] fix a few more rules <a
href="https://github.com/browserify/pbkdf2/commit/ab04da834a0342cb3779486314fa67ebc1e3f035"><code>ab04da8</code></a></li>
<li>[lint] switch to eslint <a
href="https://github.com/browserify/pbkdf2/commit/89694cf7e4062a8c924fbe74ad2b2d3cf78f1715"><code>89694cf</code></a></li>
<li>[Tests] add coverage <a
href="https://github.com/browserify/pbkdf2/commit/d0d534bfdc4db6d6ea9f719606ad18a78db6c124"><code>d0d534b</code></a></li>
<li>[Refactor] use <code>to-buffer</code> <a
href="https://github.com/browserify/pbkdf2/commit/e3102a8cd4830a3ac85cd0dd011cc002fdde33bb"><code>e3102a8</code></a></li>
<li>[readme] improve badges <a
href="https://github.com/browserify/pbkdf2/commit/fca0c9d4c5b053d911315a3607367d1db9f9f605"><code>fca0c9d</code></a></li>
<li>[Tests] remove unused travis file <a
href="https://github.com/browserify/pbkdf2/commit/a2c7d93bbcad73c49dad0c18fef6b8a4af8c3310"><code>a2c7d93</code></a></li>
<li>[meta] switch from <code>files</code> to <code>npmignore</code> <a
href="https://github.com/browserify/pbkdf2/commit/7f31fbca528fa5af3b7d3910daf09a7e5ed8adb4"><code>7f31fbc</code></a></li>
<li>[Tests] use .nycrc <a
href="https://github.com/browserify/pbkdf2/commit/8d628e8d5559b4acd4d4a714afb04a2990f901b7"><code>8d628e8</code></a></li>
<li>[Refactor] minor tweaks <a
href="https://github.com/browserify/pbkdf2/commit/fc61005c8cbd480e24ee103ac39a45f0d90ac636"><code>fc61005</code></a></li>
<li>[Deps] update <code>create-hmac</code>, <code>safe-buffer</code>,
<code>sha.js</code> <a
href="https://github.com/browserify/pbkdf2/commit/ae2a7d051c9133c25d5212ba4f46747c0ed4c190"><code>ae2a7d0</code></a></li>
<li>[Fix] pin <code>create-hash</code>, <code>ripemd160</code> due to
breaking changes <a
href="https://github.com/browserify/pbkdf2/commit/e07996890af79296f1913431fb3b252e25df2f0e"><code>e079968</code></a></li>
<li>[Tests] fix tests in node 3 <a
href="https://github.com/browserify/pbkdf2/commit/45fbcf30431f9585ae3b61f2207c0a16c1953915"><code>45fbcf3</code></a></li>
<li>[meta] skip publishing benchmarks <a
href="https://github.com/browserify/pbkdf2/commit/19ea57bf11d055ddcd97d2556cd3097663b050b9"><code>19ea57b</code></a></li>
<li>[Dev Deps] add missing peer dep <a
href="https://github.com/browserify/pbkdf2/commit/645e252375087e97beb95e518038b99eb5724c5b"><code>645e252</code></a></li>
</ul>
<h2><a
href="https://github.com/browserify/pbkdf2/compare/v3.1.1...v3.1.2">v3.1.2</a>
- 2021-04-09</h2>
<h3>Commits</h3>
<ul>
<li>handle nextTick <a
href="https://github.com/browserify/pbkdf2/commit/36457b9fecfd1e128c8e9884a57e277649679832"><code>36457b9</code></a></li>
<li>Check for process before accessing <a
href="https://github.com/browserify/pbkdf2/commit/449e510f861f56ed673613d8102f6b1a3e680ced"><code>449e510</code></a></li>
<li>handle different returns <a
href="https://github.com/browserify/pbkdf2/commit/fb82137ecefb56b5e93b70686e0dc0b4bb591b7c"><code>fb82137</code></a></li>
</ul>
<h2><a
href="https://github.com/browserify/pbkdf2/compare/v3.1.0...v3.1.1">v3.1.1</a>
- 2020-06-04</h2>
<h3>Commits</h3>
<ul>
<li>style nit <a
href="https://github.com/browserify/pbkdf2/commit/6d994f2e71934c26f96791bde440e86d9d93ff2b"><code>6d994f2</code></a></li>
<li>remove arrow <a
href="https://github.com/browserify/pbkdf2/commit/70ea2709b761b8fbb0551f4411feb52efb9c8690"><code>70ea270</code></a></li>
</ul>
<h2><a
href="https://github.com/browserify/pbkdf2/compare/v3.0.17...v3.1.0">v3.1.0</a>
- 2020-06-03</h2>
<h3>Merged</h3>
<ul>
<li>check if process.version is available <a
href="https://redirect.github.com/browserify/pbkdf2/pull/85"><code>[#85](https://github.com/crypto-browserify/pbkdf2/issues/85)</code></a></li>
</ul>
<h3>Commits</h3>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/browserify/pbkdf2/commit/3e40827b183f7f5a14946bdb7d57de3d1d8dd581"><code>3e40827</code></a>
v3.1.3</li>
<li><a
href="https://github.com/browserify/pbkdf2/commit/e3102a8cd4830a3ac85cd0dd011cc002fdde33bb"><code>e3102a8</code></a>
[Refactor] use <code>to-buffer</code></li>
<li><a
href="https://github.com/browserify/pbkdf2/commit/7431b5766805cbf880c1b3d0f38d484357844ff7"><code>7431b57</code></a>
Revert &quot;[Tests] fix tests in node &lt; 3&quot;</li>
<li><a
href="https://github.com/browserify/pbkdf2/commit/19ea57bf11d055ddcd97d2556cd3097663b050b9"><code>19ea57b</code></a>
[meta] skip publishing benchmarks</li>
<li><a
href="https://github.com/browserify/pbkdf2/commit/a2c7d93bbcad73c49dad0c18fef6b8a4af8c3310"><code>a2c7d93</code></a>
[Tests] remove unused travis file</li>
<li><a
href="https://github.com/browserify/pbkdf2/commit/645e252375087e97beb95e518038b99eb5724c5b"><code>645e252</code></a>
[Dev Deps] add missing peer dep</li>
<li><a
href="https://github.com/browserify/pbkdf2/commit/796c38d428ed9546e7ddfbb38322faa99921d716"><code>796c38d</code></a>
[meta] add <code>auto-changelog</code></li>
<li><a
href="https://github.com/browserify/pbkdf2/commit/d0d534bfdc4db6d6ea9f719606ad18a78db6c124"><code>d0d534b</code></a>
[Tests] add coverage</li>
<li><a
href="https://github.com/browserify/pbkdf2/commit/7f31fbca528fa5af3b7d3910daf09a7e5ed8adb4"><code>7f31fbc</code></a>
[meta] switch from <code>files</code> to <code>npmignore</code></li>
<li><a
href="https://github.com/browserify/pbkdf2/commit/fca0c9d4c5b053d911315a3607367d1db9f9f605"><code>fca0c9d</code></a>
[readme] improve badges</li>
<li>Additional commits viewable in <a
href="https://github.com/crypto-browserify/pbkdf2/compare/v3.0.17...v3.1.3">compare
view</a></li>
</ul>
</details>
<details>
<summary>Maintainer changes</summary>
<p>This version was pushed to npm by <a
href="https://www.npmjs.com/~ljharb">ljharb</a>, a new releaser for
pbkdf2 since your current version.</p>
</details>
<br />


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---
 package-lock.json | 532 +++++++++++++++++++++++++++++++++++-----------
 1 file changed, 410 insertions(+), 122 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 45bd49cb896d..e07f5d775c3f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3798,16 +3798,47 @@
             }
         },
         "node_modules/call-bind": {
-            "version": "1.0.7",
-            "resolved": "https://registry.npmjs.org/call-bind/-/call-bind-1.0.7.tgz",
-            "integrity": "sha512-GHTSNSYICQ7scH7sZ+M2rFopRoLh8t2bLSW6BbgrtLsahOIB5iyAVJf9GjWK3cYTDaMj4XdBpM1cA6pIS0Kv2w==",
+            "version": "1.0.8",
+            "resolved": "https://registry.npmjs.org/call-bind/-/call-bind-1.0.8.tgz",
+            "integrity": "sha512-oKlSFMcMwpUg2ednkhQ454wfWiU/ul3CkJe/PEHcTKuiX6RpbehUiFMXu13HalGZxfUwCQzZG747YXBn1im9ww==",
             "dev": true,
+            "license": "MIT",
             "dependencies": {
+                "call-bind-apply-helpers": "^1.0.0",
                 "es-define-property": "^1.0.0",
-                "es-errors": "^1.3.0",
-                "function-bind": "^1.1.2",
                 "get-intrinsic": "^1.2.4",
-                "set-function-length": "^1.2.1"
+                "set-function-length": "^1.2.2"
+            },
+            "engines": {
+                "node": ">= 0.4"
+            },
+            "funding": {
+                "url": "https://github.com/sponsors/ljharb"
+            }
+        },
+        "node_modules/call-bind-apply-helpers": {
+            "version": "1.0.2",
+            "resolved": "https://registry.npmjs.org/call-bind-apply-helpers/-/call-bind-apply-helpers-1.0.2.tgz",
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+            "integrity": "sha512-Sp1ablJ0ivDkSzjcaJdxEunN5/XvksFJ2sMBFfq6x0ryhQV/2b/KwFe21cMpmHtPOSij8K99/wSfoEuTObmuMQ==",
+            "dev": true,
+            "requires": {
+                "es-errors": "^1.3.0",
+                "function-bind": "^1.1.2"
+            }
+        },
+        "call-bound": {
+            "version": "1.0.4",
+            "resolved": "https://registry.npmjs.org/call-bound/-/call-bound-1.0.4.tgz",
+            "integrity": "sha512-+ys997U96po4Kx/ABpBCqhA9EuxJaQWDQg7295H4hBphv3IZg0boBKuwYpt4YXp6MZ5AmZQnU/tyMTlRpaSejg==",
+            "dev": true,
+            "requires": {
+                "call-bind-apply-helpers": "^1.0.2",
+                "get-intrinsic": "^1.3.0"
             }
         },
         "callsites": {
@@ -18965,6 +19166,17 @@
                 }
             }
         },
+        "dunder-proto": {
+            "version": "1.0.1",
+            "resolved": "https://registry.npmjs.org/dunder-proto/-/dunder-proto-1.0.1.tgz",
+            "integrity": "sha512-KIN/nDJBQRcXw0MLVhZE9iQHmG68qAVIBg9CqmUYjmQIhgij9U5MFvrqkUL5FbtyyzZuOeOt0zdeRe4UY7ct+A==",
+            "dev": true,
+            "requires": {
+                "call-bind-apply-helpers": "^1.0.1",
+                "es-errors": "^1.3.0",
+                "gopd": "^1.2.0"
+            }
+        },
         "duplexer": {
             "version": "0.1.2",
             "resolved": "https://registry.npmjs.org/duplexer/-/duplexer-0.1.2.tgz",
@@ -19157,13 +19369,10 @@
             }
         },
         "es-define-property": {
-            "version": "1.0.0",
-            "resolved": "https://registry.npmjs.org/es-define-property/-/es-define-property-1.0.0.tgz",
-            "integrity": "sha512-jxayLKShrEqqzJ0eumQbVhTYQM27CfT1T35+gCgDFoL82JLsXqTJ76zv6A0YLOgEnLUMvLzsDsGIrl8NFpT2gQ==",
-            "dev": true,
-            "requires": {
-                "get-intrinsic": "^1.2.4"
-            }
+            "version": "1.0.1",
+            "resolved": "https://registry.npmjs.org/es-define-property/-/es-define-property-1.0.1.tgz",
+            "integrity": "sha512-e3nRfgfUZ4rNGL232gUgX06QNyyez04KdjFrF+LTRoOXmrOgFKDg4BCdsjW8EnT69eqdYGmRpJwiPVYNrCaW3g==",
+            "dev": true
         },
         "es-errors": {
             "version": "1.3.0",
@@ -19178,9 +19387,9 @@
             "dev": true
         },
         "es-object-atoms": {
-            "version": "1.0.0",
-            "resolved": "https://registry.npmjs.org/es-object-atoms/-/es-object-atoms-1.0.0.tgz",
-            "integrity": "sha512-MZ4iQ6JwHOBQjahnjwaC1ZtIBH+2ohjamzAO3oaHcXYup7qxjF2fixyH+Q71voWHeOkI2q/TnJao/KfXYIZWbw==",
+            "version": "1.1.1",
+            "resolved": "https://registry.npmjs.org/es-object-atoms/-/es-object-atoms-1.1.1.tgz",
+            "integrity": "sha512-FGgH2h8zKNim9ljj7dankFPcICIK9Cp5bm+c2gQSYePhpaG5+esrLODihIorn+Pe6FGJzWhXQotPv73jTaldXA==",
             "dev": true,
             "requires": {
                 "es-errors": "^1.3.0"
@@ -20146,12 +20355,12 @@
             }
         },
         "for-each": {
-            "version": "0.3.3",
-            "resolved": "https://registry.npmjs.org/for-each/-/for-each-0.3.3.tgz",
-            "integrity": "sha512-jqYfLp7mo9vIyQf8ykW2v7A+2N4QjeCeI5+Dz9XraiO1ign81wjiH7Fb9vSOWvQfNtmSa4H2RoQTrrXivdUZmw==",
+            "version": "0.3.5",
+            "resolved": "https://registry.npmjs.org/for-each/-/for-each-0.3.5.tgz",
+            "integrity": "sha512-dKx12eRCVIzqCxFGplyFKJMPvLEWgmNtUrpTiJIR5u97zEhRG8ySrtboPHZXx7daLxQVrl643cTzbab2tkQjxg==",
             "dev": true,
             "requires": {
-                "is-callable": "^1.1.3"
+                "is-callable": "^1.2.7"
             }
         },
         "for-in": {
@@ -20344,16 +20553,21 @@
             "dev": true
         },
         "get-intrinsic": {
-            "version": "1.2.4",
-            "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.2.4.tgz",
-            "integrity": "sha512-5uYhsJH8VJBTv7oslg4BznJYhDoRI6waYCxMmCdnTrcCrHA/fCFKoTFz2JKKE0HdDFUF7/oQuhzumXJK7paBRQ==",
+            "version": "1.3.0",
+            "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.3.0.tgz",
+            "integrity": "sha512-9fSjSaos/fRIVIp+xSJlE6lfwhES7LNtKaCBIamHsjr2na1BiABJPo0mOjjz8GJDURarmCPGqaiVg5mfjb98CQ==",
             "dev": true,
             "requires": {
+                "call-bind-apply-helpers": "^1.0.2",
+                "es-define-property": "^1.0.1",
                 "es-errors": "^1.3.0",
+                "es-object-atoms": "^1.1.1",
                 "function-bind": "^1.1.2",
-                "has-proto": "^1.0.1",
-                "has-symbols": "^1.0.3",
-                "hasown": "^2.0.0"
+                "get-proto": "^1.0.1",
+                "gopd": "^1.2.0",
+                "has-symbols": "^1.1.0",
+                "hasown": "^2.0.2",
+                "math-intrinsics": "^1.1.0"
             }
         },
         "get-package-type": {
@@ -20368,6 +20582,16 @@
             "integrity": "sha512-g/Q1aTSDOxFpchXC4i8ZWvxA1lnPqx/JHqcpIw0/LX9T8x/GBbi6YnlN5nhaKIFkT8oFsscUKgDJYxfwfS6QsQ==",
             "dev": true
         },
+        "get-proto": {
+            "version": "1.0.1",
+            "resolved": "https://registry.npmjs.org/get-proto/-/get-proto-1.0.1.tgz",
+            "integrity": "sha512-sTSfBjoXBp89JvIKIefqw7U2CCebsc74kiY6awiGogKtoSGbgjYE/G/+l9sF3MWFPNc9IcoOC4ODfKHfxFmp0g==",
+            "dev": true,
+            "requires": {
+                "dunder-proto": "^1.0.1",
+                "es-object-atoms": "^1.0.0"
+            }
+        },
         "get-stream": {
             "version": "4.1.0",
             "resolved": "https://registry.npmjs.org/get-stream/-/get-stream-4.1.0.tgz",
@@ -20560,13 +20784,10 @@
             }
         },
         "gopd": {
-            "version": "1.0.1",
-            "resolved": "https://registry.npmjs.org/gopd/-/gopd-1.0.1.tgz",
-            "integrity": "sha512-d65bNlIadxvpb/A2abVdlqKqV563juRnZ1Wtk6s1sIR8uNsXR70xqIzVqxVf1eTqDunwT2MkczEeaezCKTZhwA==",
-            "dev": true,
-            "requires": {
-                "get-intrinsic": "^1.1.3"
-            }
+            "version": "1.2.0",
+            "resolved": "https://registry.npmjs.org/gopd/-/gopd-1.2.0.tgz",
+            "integrity": "sha512-ZUKRh6/kUFoAiTAtTYPZJ3hw9wNxx+BIBOijnlG9PnrJsCcSjs1wyyD6vJpaYtgnzDrKYRSqf3OO6Rfa93xsRg==",
+            "dev": true
         },
         "got": {
             "version": "8.3.2",
@@ -20958,9 +21179,9 @@
             "dev": true
         },
         "has-symbols": {
-            "version": "1.0.3",
-            "resolved": "https://registry.npmjs.org/has-symbols/-/has-symbols-1.0.3.tgz",
-            "integrity": "sha512-l3LCuF6MgDNwTDKkdYGEihYjt5pRPbEg46rtlmnSPlUbgmB8LOIrKJbYYFBSbnPaJexMKtiPO8hmeRjRz2Td+A==",
+            "version": "1.1.0",
+            "resolved": "https://registry.npmjs.org/has-symbols/-/has-symbols-1.1.0.tgz",
+            "integrity": "sha512-1cDNdwJ2Jaohmb3sg4OmKaMBwuC48sYni5HUw2DvsC8LjGTLK9h+eb1X6RyuOHe4hT0ULCW68iomhjUoKUqlPQ==",
             "dev": true
         },
         "has-to-string-tag-x": {
@@ -21514,12 +21735,12 @@
             }
         },
         "is-typed-array": {
-            "version": "1.1.13",
-            "resolved": "https://registry.npmjs.org/is-typed-array/-/is-typed-array-1.1.13.tgz",
-            "integrity": "sha512-uZ25/bUAlUY5fR4OKT4rZQEBrzQWYV9ZJYGGsUmEJ6thodVJ1HX64ePQ6Z0qPWP+m+Uq6e9UugrE38jeYsDSMw==",
+            "version": "1.1.15",
+            "resolved": "https://registry.npmjs.org/is-typed-array/-/is-typed-array-1.1.15.tgz",
+            "integrity": "sha512-p3EcsicXjit7SaskXHs1hA91QxgTw46Fv6EFKKGS5DRFLD8yKnohjF3hxoju94b/OcMZoQukzpPpBE9uLVKzgQ==",
             "dev": true,
             "requires": {
-                "which-typed-array": "^1.1.14"
+                "which-typed-array": "^1.1.16"
             }
         },
         "is-typedarray": {
@@ -22307,6 +22528,12 @@
                 }
             }
         },
+        "math-intrinsics": {
+            "version": "1.1.0",
+            "resolved": "https://registry.npmjs.org/math-intrinsics/-/math-intrinsics-1.1.0.tgz",
+            "integrity": "sha512-/IXtbwEk5HTPyEwyKX6hGkYXxM9nbj64B+ilVJnC/R6B0pH5G4V3b0pVbL7DBj4tkhBAppbQUlf6F6Xl9LHu1g==",
+            "dev": true
+        },
         "md5": {
             "version": "2.3.0",
             "resolved": "https://registry.npmjs.org/md5/-/md5-2.3.0.tgz",
@@ -23586,16 +23813,56 @@
             "dev": true
         },
         "pbkdf2": {
-            "version": "3.0.17",
-            "resolved": "https://registry.npmjs.org/pbkdf2/-/pbkdf2-3.0.17.tgz",
-            "integrity": "sha512-U/il5MsrZp7mGg3mSQfn742na2T+1/vHDCG5/iTI3X9MKUuYUZVLQhyRsg06mCgDBTd57TxzgZt7P+fYfjRLtA==",
+            "version": "3.1.3",
+            "resolved": "https://registry.npmjs.org/pbkdf2/-/pbkdf2-3.1.3.tgz",
+            "integrity": "sha512-wfRLBZ0feWRhCIkoMB6ete7czJcnNnqRpcoWQBLqatqXXmelSRqfdDK4F3u9T2s2cXas/hQJcryI/4lAL+XTlA==",
             "dev": true,
             "requires": {
-                "create-hash": "^1.1.2",
-                "create-hmac": "^1.1.4",
-                "ripemd160": "^2.0.1",
-                "safe-buffer": "^5.0.1",
-                "sha.js": "^2.4.8"
+                "create-hash": "~1.1.3",
+                "create-hmac": "^1.1.7",
+                "ripemd160": "=2.0.1",
+                "safe-buffer": "^5.2.1",
+                "sha.js": "^2.4.11",
+                "to-buffer": "^1.2.0"
+            },
+            "dependencies": {
+                "create-hash": {
+                    "version": "1.1.3",
+                    "resolved": "https://registry.npmjs.org/create-hash/-/create-hash-1.1.3.tgz",
+                    "integrity": "sha512-snRpch/kwQhcdlnZKYanNF1m0RDlrCdSKQaH87w1FCFPVPNCQ/Il9QJKAX2jVBZddRdaHBMC+zXa9Gw9tmkNUA==",
+                    "dev": true,
+                    "requires": {
+                        "cipher-base": "^1.0.1",
+                        "inherits": "^2.0.1",
+                        "ripemd160": "^2.0.0",
+                        "sha.js": "^2.4.0"
+                    }
+                },
+                "hash-base": {
+                    "version": "2.0.2",
+                    "resolved": "https://registry.npmjs.org/hash-base/-/hash-base-2.0.2.tgz",
+                    "integrity": "sha512-0TROgQ1/SxE6KmxWSvXHvRj90/Xo1JvZShofnYF+f6ZsGtR4eES7WfrQzPalmyagfKZCXpVnitiRebZulWsbiw==",
+                    "dev": true,
+                    "requires": {
+                        "inherits": "^2.0.1"
+                    }
+                },
+                "ripemd160": {
+                    "version": "2.0.1",
+                    "resolved": "https://registry.npmjs.org/ripemd160/-/ripemd160-2.0.1.tgz",
+                    "integrity": "sha512-J7f4wutN8mdbV08MJnXibYpCOPHR+yzy+iQ/AsjMv2j8cLavQ8VGagDFUwwTAdF8FmRKVeNpbTTEwNHCW1g94w==",
+                    "dev": true,
+                    "requires": {
+                        "hash-base": "^2.0.0",
+                        "inherits": "^2.0.1"
+                    }
+                },
+                "safe-buffer": {
+                    "version": "5.2.1",
+                    "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+                    "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
+                    "dev": true
+                }
             }
         },
         "pend": {
@@ -24983,10 +25250,29 @@
             "dev": true
         },
         "to-buffer": {
-            "version": "1.1.1",
-            "resolved": "https://registry.npmjs.org/to-buffer/-/to-buffer-1.1.1.tgz",
-            "integrity": "sha512-lx9B5iv7msuFYE3dytT+KE5tap+rNYw+K4jVkb9R/asAb+pbBSM17jtunHplhBe6RRJdZx3Pn2Jph24O32mOVg==",
-            "dev": true
+            "version": "1.2.1",
+            "resolved": "https://registry.npmjs.org/to-buffer/-/to-buffer-1.2.1.tgz",
+            "integrity": "sha512-tB82LpAIWjhLYbqjx3X4zEeHN6M8CiuOEy2JY8SEQVdYRe3CCHOFaqrBW1doLDrfpWhplcW7BL+bO3/6S3pcDQ==",
+            "dev": true,
+            "requires": {
+                "isarray": "^2.0.5",
+                "safe-buffer": "^5.2.1",
+                "typed-array-buffer": "^1.0.3"
+            },
+            "dependencies": {
+                "isarray": {
+                    "version": "2.0.5",
+                    "resolved": "https://registry.npmjs.org/isarray/-/isarray-2.0.5.tgz",
+                    "integrity": "sha512-xHjhDr3cNBK0BzdUJSPXZntQUx/mwMS5Rw4A7lPJ90XGAO6ISP/ePDNuo0vhqOZU+UD5JoodwCAAoZQd3FeAKw==",
+                    "dev": true
+                },
+                "safe-buffer": {
+                    "version": "5.2.1",
+                    "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+                    "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
+                    "dev": true
+                }
+            }
         },
         "to-regex-range": {
             "version": "5.0.1",
@@ -25261,14 +25547,14 @@
             "dev": true
         },
         "typed-array-buffer": {
-            "version": "1.0.2",
-            "resolved": "https://registry.npmjs.org/typed-array-buffer/-/typed-array-buffer-1.0.2.tgz",
-            "integrity": "sha512-gEymJYKZtKXzzBzM4jqa9w6Q1Jjm7x2d+sh19AdsD4wqnMPDYyvwpsIc2Q/835kHuo3BEQ7CjelGhfTsoBb2MQ==",
+            "version": "1.0.3",
+            "resolved": "https://registry.npmjs.org/typed-array-buffer/-/typed-array-buffer-1.0.3.tgz",
+            "integrity": "sha512-nAYYwfY3qnzX30IkA6AQZjVbtK6duGontcQm1WSG1MD94YLqK0515GNApXkoxKOWMusVssAHWLh9SeaoefYFGw==",
             "dev": true,
             "requires": {
-                "call-bind": "^1.0.7",
+                "call-bound": "^1.0.3",
                 "es-errors": "^1.3.0",
-                "is-typed-array": "^1.1.13"
+                "is-typed-array": "^1.1.14"
             }
         },
         "typed-array-byte-length": {
@@ -25957,15 +26243,17 @@
             }
         },
         "which-typed-array": {
-            "version": "1.1.15",
-            "resolved": "https://registry.npmjs.org/which-typed-array/-/which-typed-array-1.1.15.tgz",
-            "integrity": "sha512-oV0jmFtUky6CXfkqehVvBP/LSWJ2sy4vWMioiENyJLePrBO/yKyV9OyJySfAKosh+RYkIl5zJCNZ8/4JncrpdA==",
+            "version": "1.1.19",
+            "resolved": "https://registry.npmjs.org/which-typed-array/-/which-typed-array-1.1.19.tgz",
+            "integrity": "sha512-rEvr90Bck4WZt9HHFC4DJMsjvu7x+r6bImz0/BrbWb7A2djJ8hnZMrWnHo9F8ssv0OMErasDhftrfROTyqSDrw==",
             "dev": true,
             "requires": {
                 "available-typed-arrays": "^1.0.7",
-                "call-bind": "^1.0.7",
-                "for-each": "^0.3.3",
-                "gopd": "^1.0.1",
+                "call-bind": "^1.0.8",
+                "call-bound": "^1.0.4",
+                "for-each": "^0.3.5",
+                "get-proto": "^1.0.1",
+                "gopd": "^1.2.0",
                 "has-tostringtag": "^1.0.2"
             }
         },

From 01d872b0a709fc3000546da68088f4248b443ee9 Mon Sep 17 00:00:00 2001
From: Anthony Kim <62267334+anthonykim1@users.noreply.github.com>
Date: Thu, 26 Jun 2025 09:22:04 -0700
Subject: [PATCH 005/178] Disable PyREPL (#25216)

Resolves: https://github.com/microsoft/vscode-python/issues/25164

We can enable shell integration again before
https://github.com/python/cpython/issues/126131
Since we are using `PYTHON_BASIC_REPL` there is no need to use bracketed
paste mode to avoid indentation error prevalent on the PyREPL from
cpython >= 3.13

When there is upstream fix in the future, we should start using
bracketed paste mode again, and won't have to inject `PYTHON_BASIC_REPL`
---
 src/client/extensionActivation.ts                     |  3 ++-
 src/client/terminals/codeExecution/helper.ts          | 11 +----------
 src/client/terminals/pythonStartup.ts                 |  5 +++++
 src/test/terminals/codeExecution/helper.test.ts       |  4 ++--
 .../terminals/shellIntegration/pythonStartup.test.ts  | 10 +++++++++-
 5 files changed, 19 insertions(+), 14 deletions(-)

diff --git a/src/client/extensionActivation.ts b/src/client/extensionActivation.ts
index 8330d5010f7a..8fae9d5131ff 100644
--- a/src/client/extensionActivation.ts
+++ b/src/client/extensionActivation.ts
@@ -53,7 +53,7 @@ import { DebuggerTypeName } from './debugger/constants';
 import { StopWatch } from './common/utils/stopWatch';
 import { registerReplCommands, registerReplExecuteOnEnter, registerStartNativeReplCommand } from './repl/replCommands';
 import { registerTriggerForTerminalREPL } from './terminals/codeExecution/terminalReplWatcher';
-import { registerPythonStartup } from './terminals/pythonStartup';
+import { registerBasicRepl, registerPythonStartup } from './terminals/pythonStartup';
 import { registerPixiFeatures } from './pythonEnvironments/common/environmentManagers/pixi';
 import { registerCustomTerminalLinkProvider } from './terminals/pythonStartupLinkProvider';
 import { registerEnvExtFeatures } from './envExt/api.internal';
@@ -184,6 +184,7 @@ async function activateLegacy(ext: ExtensionState, startupStopWatch: StopWatch):
             serviceManager.get<ITerminalAutoActivation>(ITerminalAutoActivation).register();
 
             await registerPythonStartup(ext.context);
+            await registerBasicRepl(ext.context);
 
             serviceManager.get<ICodeExecutionManager>(ICodeExecutionManager).registerCommands();
 
diff --git a/src/client/terminals/codeExecution/helper.ts b/src/client/terminals/codeExecution/helper.ts
index 31a626207bc4..26ebe35aae43 100644
--- a/src/client/terminals/codeExecution/helper.ts
+++ b/src/client/terminals/codeExecution/helper.ts
@@ -55,7 +55,7 @@ export class CodeExecutionHelper implements ICodeExecutionHelper {
 
     public async normalizeLines(
         code: string,
-        replType: ReplType,
+        _replType: ReplType,
         wholeFileContent?: string,
         resource?: Uri,
     ): Promise<string> {
@@ -124,15 +124,6 @@ export class CodeExecutionHelper implements ICodeExecutionHelper {
                 const lineOffset = object.nextBlockLineno - activeEditor!.selection.start.line - 1;
                 await this.moveToNextBlock(lineOffset, activeEditor);
             }
-            // For new _pyrepl for Python3.13 and above, we need to send code via bracketed paste mode.
-            if (object.attach_bracket_paste && replType === ReplType.terminal) {
-                let trimmedNormalized = object.normalized.replace(/\n$/, '');
-                if (trimmedNormalized.endsWith(':\n')) {
-                    // In case where statement is unfinished via :, truncate so auto-indentation lands nicely.
-                    trimmedNormalized = trimmedNormalized.replace(/\n$/, '');
-                }
-                return `\u001b[200~${trimmedNormalized}\u001b[201~`;
-            }
 
             return parse(object.normalized);
         } catch (ex) {
diff --git a/src/client/terminals/pythonStartup.ts b/src/client/terminals/pythonStartup.ts
index 28878713a8db..1a2576dce772 100644
--- a/src/client/terminals/pythonStartup.ts
+++ b/src/client/terminals/pythonStartup.ts
@@ -36,3 +36,8 @@ export async function registerPythonStartup(context: ExtensionContext): Promise<
         }),
     );
 }
+
+export async function registerBasicRepl(context: ExtensionContext): Promise<void> {
+    // TODO: Configurable by setting
+    context.environmentVariableCollection.replace('PYTHON_BASIC_REPL', '1');
+}
diff --git a/src/test/terminals/codeExecution/helper.test.ts b/src/test/terminals/codeExecution/helper.test.ts
index a43c5f8746ed..b7e0d1617884 100644
--- a/src/test/terminals/codeExecution/helper.test.ts
+++ b/src/test/terminals/codeExecution/helper.test.ts
@@ -137,7 +137,7 @@ suite('Terminal - Code Execution Helper', async () => {
         editor.setup((e) => e.document).returns(() => document.object);
     });
 
-    test('normalizeLines should handle attach_bracket_paste correctly', async () => {
+    test('normalizeLines with BASIC_REPL does not attach bracketed paste mode', async () => {
         configurationService
             .setup((c) => c.getSettings(TypeMoq.It.isAny()))
             .returns({
@@ -163,7 +163,7 @@ suite('Terminal - Code Execution Helper', async () => {
 
         const result = await helper.normalizeLines('print("Looks like you are on 3.13")', ReplType.terminal);
 
-        expect(result).to.equal(`\u001b[200~print("Looks like you are on 3.13")\u001b[201~`);
+        expect(result).to.equal(`print("Looks like you are on 3.13")`);
         jsonParseStub.restore();
     });
 
diff --git a/src/test/terminals/shellIntegration/pythonStartup.test.ts b/src/test/terminals/shellIntegration/pythonStartup.test.ts
index 45535d0ceecc..3c755adf0d9b 100644
--- a/src/test/terminals/shellIntegration/pythonStartup.test.ts
+++ b/src/test/terminals/shellIntegration/pythonStartup.test.ts
@@ -16,7 +16,7 @@ import {
 } from 'vscode';
 import { assert } from 'chai';
 import * as workspaceApis from '../../../client/common/vscodeApis/workspaceApis';
-import { registerPythonStartup } from '../../../client/terminals/pythonStartup';
+import { registerBasicRepl, registerPythonStartup } from '../../../client/terminals/pythonStartup';
 import { IExtensionContext } from '../../../client/common/types';
 import * as pythonStartupLinkProvider from '../../../client/terminals/pythonStartupLinkProvider';
 import { CustomTerminalLinkProvider } from '../../../client/terminals/pythonStartupLinkProvider';
@@ -135,6 +135,14 @@ suite('Terminal - Shell Integration with PYTHONSTARTUP', () => {
         globalEnvironmentVariableCollection.verify((c) => c.delete('PYTHONSTARTUP'), TypeMoq.Times.once());
     });
 
+    test('PYTHON_BASIC_REPL is set when registerBasicRepl is called', async () => {
+        await registerBasicRepl(context.object);
+        globalEnvironmentVariableCollection.verify(
+            (c) => c.replace('PYTHON_BASIC_REPL', '1', TypeMoq.It.isAny()),
+            TypeMoq.Times.once(),
+        );
+    });
+
     test('Ensure registering terminal link calls registerTerminalLinkProvider', async () => {
         const registerTerminalLinkProviderStub = sinon.stub(
             pythonStartupLinkProvider,

From 180ba38f0605847e2c7e722e631bf164f235562b Mon Sep 17 00:00:00 2001
From: Don Jayamanne <don.jayamanne@outlook.com>
Date: Fri, 27 Jun 2025 11:01:50 +1000
Subject: [PATCH 006/178] Capture invocation and failure reasons for tools
 (#25220)

---
 src/client/chat/baseTool.ts               | 75 +++++++++++++++++++++++
 src/client/chat/configurePythonEnvTool.ts | 17 +++--
 src/client/chat/createVirtualEnvTool.ts   | 20 +++---
 src/client/chat/getExecutableTool.ts      | 24 +++-----
 src/client/chat/getPythonEnvTool.ts       | 38 +++++-------
 src/client/chat/installPackagesTool.ts    | 40 +++++++-----
 src/client/chat/selectEnvTool.ts          | 19 +++---
 src/client/chat/utils.ts                  | 22 ++++---
 src/client/common/errors/errorUtils.ts    | 11 +---
 src/client/telemetry/constants.ts         |  1 +
 src/client/telemetry/index.ts             | 26 ++++++++
 11 files changed, 195 insertions(+), 98 deletions(-)
 create mode 100644 src/client/chat/baseTool.ts

diff --git a/src/client/chat/baseTool.ts b/src/client/chat/baseTool.ts
new file mode 100644
index 000000000000..2eedbbe226e3
--- /dev/null
+++ b/src/client/chat/baseTool.ts
@@ -0,0 +1,75 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+import {
+    CancellationToken,
+    LanguageModelTextPart,
+    LanguageModelTool,
+    LanguageModelToolInvocationOptions,
+    LanguageModelToolInvocationPrepareOptions,
+    LanguageModelToolResult,
+    PreparedToolInvocation,
+    Uri,
+    workspace,
+} from 'vscode';
+import { IResourceReference, isCancellationError, resolveFilePath } from './utils';
+import { ErrorWithTelemetrySafeReason } from '../common/errors/errorUtils';
+import { sendTelemetryEvent } from '../telemetry';
+import { EventName } from '../telemetry/constants';
+
+export abstract class BaseTool<T extends IResourceReference> implements LanguageModelTool<T> {
+    constructor(private readonly toolName: string) {}
+
+    async invoke(
+        options: LanguageModelToolInvocationOptions<T>,
+        token: CancellationToken,
+    ): Promise<LanguageModelToolResult> {
+        if (!workspace.isTrusted) {
+            return new LanguageModelToolResult([
+                new LanguageModelTextPart('Cannot use this tool in an untrusted workspace.'),
+            ]);
+        }
+        let error: Error | undefined;
+        const resource = resolveFilePath(options.input.resourcePath);
+        try {
+            return await this.invokeImpl(options, resource, token);
+        } catch (ex) {
+            error = ex as any;
+            throw ex;
+        } finally {
+            const isCancelled = token.isCancellationRequested || (error ? isCancellationError(error) : false);
+            const failed = !!error || isCancelled;
+            const failureCategory = isCancelled
+                ? 'cancelled'
+                : error
+                ? error instanceof ErrorWithTelemetrySafeReason
+                    ? error.telemetrySafeReason
+                    : 'error'
+                : undefined;
+            sendTelemetryEvent(EventName.INVOKE_TOOL, undefined, {
+                toolName: this.toolName,
+                failed,
+                failureCategory,
+            });
+        }
+    }
+    protected abstract invokeImpl(
+        options: LanguageModelToolInvocationOptions<T>,
+        resource: Uri | undefined,
+        token: CancellationToken,
+    ): Promise<LanguageModelToolResult>;
+
+    async prepareInvocation(
+        options: LanguageModelToolInvocationPrepareOptions<T>,
+        token: CancellationToken,
+    ): Promise<PreparedToolInvocation> {
+        const resource = resolveFilePath(options.input.resourcePath);
+        return this.prepareInvocationImpl(options, resource, token);
+    }
+
+    protected abstract prepareInvocationImpl(
+        options: LanguageModelToolInvocationPrepareOptions<T>,
+        resource: Uri | undefined,
+        token: CancellationToken,
+    ): Promise<PreparedToolInvocation>;
+}
diff --git a/src/client/chat/configurePythonEnvTool.ts b/src/client/chat/configurePythonEnvTool.ts
index e80347914a4d..0634b9c9ac34 100644
--- a/src/client/chat/configurePythonEnvTool.ts
+++ b/src/client/chat/configurePythonEnvTool.ts
@@ -19,18 +19,18 @@ import { TerminalCodeExecutionProvider } from '../terminals/codeExecution/termin
 import {
     getEnvDetailsForResponse,
     getToolResponseIfNotebook,
-    getUntrustedWorkspaceResponse,
     IResourceReference,
     isCancellationError,
     raceCancellationError,
 } from './utils';
-import { resolveFilePath } from './utils';
 import { ITerminalHelper } from '../common/terminal/types';
 import { IRecommendedEnvironmentService } from '../interpreter/configuration/types';
 import { CreateVirtualEnvTool } from './createVirtualEnvTool';
 import { ISelectPythonEnvToolArguments, SelectPythonEnvTool } from './selectEnvTool';
+import { BaseTool } from './baseTool';
 
-export class ConfigurePythonEnvTool implements LanguageModelTool<IResourceReference> {
+export class ConfigurePythonEnvTool extends BaseTool<IResourceReference>
+    implements LanguageModelTool<IResourceReference> {
     private readonly terminalExecutionService: TerminalCodeExecutionProvider;
     private readonly terminalHelper: ITerminalHelper;
     private readonly recommendedEnvService: IRecommendedEnvironmentService;
@@ -40,6 +40,7 @@ export class ConfigurePythonEnvTool implements LanguageModelTool<IResourceRefere
         private readonly serviceContainer: IServiceContainer,
         private readonly createEnvTool: CreateVirtualEnvTool,
     ) {
+        super(ConfigurePythonEnvTool.toolName);
         this.terminalExecutionService = this.serviceContainer.get<TerminalCodeExecutionProvider>(
             ICodeExecutionService,
             'standard',
@@ -50,14 +51,11 @@ export class ConfigurePythonEnvTool implements LanguageModelTool<IResourceRefere
         );
     }
 
-    async invoke(
+    async invokeImpl(
         options: LanguageModelToolInvocationOptions<IResourceReference>,
+        resource: Uri | undefined,
         token: CancellationToken,
     ): Promise<LanguageModelToolResult> {
-        if (!workspace.isTrusted) {
-            return getUntrustedWorkspaceResponse();
-        }
-        const resource = resolveFilePath(options.input.resourcePath);
         const notebookResponse = getToolResponseIfNotebook(resource);
         if (notebookResponse) {
             return notebookResponse;
@@ -101,8 +99,9 @@ export class ConfigurePythonEnvTool implements LanguageModelTool<IResourceRefere
         }
     }
 
-    async prepareInvocation?(
+    async prepareInvocationImpl(
         _options: LanguageModelToolInvocationPrepareOptions<IResourceReference>,
+        _resource: Uri | undefined,
         _token: CancellationToken,
     ): Promise<PreparedToolInvocation> {
         return {
diff --git a/src/client/chat/createVirtualEnvTool.ts b/src/client/chat/createVirtualEnvTool.ts
index 9bbcc466fe28..56760d2b4bef 100644
--- a/src/client/chat/createVirtualEnvTool.ts
+++ b/src/client/chat/createVirtualEnvTool.ts
@@ -22,12 +22,10 @@ import {
     doesWorkspaceHaveVenvOrCondaEnv,
     getDisplayVersion,
     getEnvDetailsForResponse,
-    getUntrustedWorkspaceResponse,
     IResourceReference,
     isCancellationError,
     raceCancellationError,
 } from './utils';
-import { resolveFilePath } from './utils';
 import { ITerminalHelper } from '../common/terminal/types';
 import { raceTimeout, sleep } from '../common/utils/async';
 import { IInterpreterPathService } from '../common/types';
@@ -44,12 +42,14 @@ import { StopWatch } from '../common/utils/stopWatch';
 import { useEnvExtension } from '../envExt/api.internal';
 import { PythonEnvironment } from '../envExt/types';
 import { hideEnvCreation } from '../pythonEnvironments/creation/provider/hideEnvCreation';
+import { BaseTool } from './baseTool';
 
 interface ICreateVirtualEnvToolParams extends IResourceReference {
     packageList?: string[]; // Added only becausewe have ability to create a virtual env with list of packages same tool within the in Python Env extension.
 }
 
-export class CreateVirtualEnvTool implements LanguageModelTool<ICreateVirtualEnvToolParams> {
+export class CreateVirtualEnvTool extends BaseTool<ICreateVirtualEnvToolParams>
+    implements LanguageModelTool<ICreateVirtualEnvToolParams> {
     private readonly terminalExecutionService: TerminalCodeExecutionProvider;
     private readonly terminalHelper: ITerminalHelper;
     private readonly recommendedEnvService: IRecommendedEnvironmentService;
@@ -60,6 +60,7 @@ export class CreateVirtualEnvTool implements LanguageModelTool<ICreateVirtualEnv
         private readonly api: PythonExtension['environments'],
         private readonly serviceContainer: IServiceContainer,
     ) {
+        super(CreateVirtualEnvTool.toolName);
         this.terminalExecutionService = this.serviceContainer.get<TerminalCodeExecutionProvider>(
             ICodeExecutionService,
             'standard',
@@ -70,14 +71,11 @@ export class CreateVirtualEnvTool implements LanguageModelTool<ICreateVirtualEnv
         );
     }
 
-    async invoke(
+    async invokeImpl(
         options: LanguageModelToolInvocationOptions<ICreateVirtualEnvToolParams>,
+        resource: Uri | undefined,
         token: CancellationToken,
     ): Promise<LanguageModelToolResult> {
-        if (!workspace.isTrusted) {
-            return getUntrustedWorkspaceResponse();
-        }
-        const resource = resolveFilePath(options.input.resourcePath);
         let info = await this.getPreferredEnvForCreation(resource);
         if (!info) {
             traceWarn(`Called ${CreateVirtualEnvTool.toolName} tool not invoked, no preferred environment found.`);
@@ -170,11 +168,11 @@ export class CreateVirtualEnvTool implements LanguageModelTool<ICreateVirtualEnv
         return info ? true : false;
     }
 
-    async prepareInvocation?(
-        options: LanguageModelToolInvocationPrepareOptions<ICreateVirtualEnvToolParams>,
+    async prepareInvocationImpl(
+        _options: LanguageModelToolInvocationPrepareOptions<ICreateVirtualEnvToolParams>,
+        resource: Uri | undefined,
         token: CancellationToken,
     ): Promise<PreparedToolInvocation> {
-        const resource = resolveFilePath(options.input.resourcePath);
         const info = await raceCancellationError(this.getPreferredEnvForCreation(resource), token);
         if (!info) {
             return {};
diff --git a/src/client/chat/getExecutableTool.ts b/src/client/chat/getExecutableTool.ts
index 8c1bed632384..746a540d14f8 100644
--- a/src/client/chat/getExecutableTool.ts
+++ b/src/client/chat/getExecutableTool.ts
@@ -10,7 +10,7 @@ import {
     LanguageModelToolInvocationPrepareOptions,
     LanguageModelToolResult,
     PreparedToolInvocation,
-    workspace,
+    Uri,
 } from 'vscode';
 import { PythonExtension } from '../api/types';
 import { IServiceContainer } from '../ioc/types';
@@ -20,15 +20,14 @@ import {
     getEnvDisplayName,
     getEnvironmentDetails,
     getToolResponseIfNotebook,
-    getUntrustedWorkspaceResponse,
     IResourceReference,
     raceCancellationError,
 } from './utils';
-import { resolveFilePath } from './utils';
 import { ITerminalHelper } from '../common/terminal/types';
 import { IDiscoveryAPI } from '../pythonEnvironments/base/locator';
+import { BaseTool } from './baseTool';
 
-export class GetExecutableTool implements LanguageModelTool<IResourceReference> {
+export class GetExecutableTool extends BaseTool<IResourceReference> implements LanguageModelTool<IResourceReference> {
     private readonly terminalExecutionService: TerminalCodeExecutionProvider;
     private readonly terminalHelper: ITerminalHelper;
     public static readonly toolName = 'get_python_executable_details';
@@ -37,21 +36,18 @@ export class GetExecutableTool implements LanguageModelTool<IResourceReference>
         private readonly serviceContainer: IServiceContainer,
         private readonly discovery: IDiscoveryAPI,
     ) {
+        super(GetExecutableTool.toolName);
         this.terminalExecutionService = this.serviceContainer.get<TerminalCodeExecutionProvider>(
             ICodeExecutionService,
             'standard',
         );
         this.terminalHelper = this.serviceContainer.get<ITerminalHelper>(ITerminalHelper);
     }
-    async invoke(
-        options: LanguageModelToolInvocationOptions<IResourceReference>,
+    async invokeImpl(
+        _options: LanguageModelToolInvocationOptions<IResourceReference>,
+        resourcePath: Uri | undefined,
         token: CancellationToken,
     ): Promise<LanguageModelToolResult> {
-        if (!workspace.isTrusted) {
-            return getUntrustedWorkspaceResponse();
-        }
-
-        const resourcePath = resolveFilePath(options.input.resourcePath);
         const notebookResponse = getToolResponseIfNotebook(resourcePath);
         if (notebookResponse) {
             return notebookResponse;
@@ -68,11 +64,11 @@ export class GetExecutableTool implements LanguageModelTool<IResourceReference>
         return new LanguageModelToolResult([new LanguageModelTextPart(message)]);
     }
 
-    async prepareInvocation?(
-        options: LanguageModelToolInvocationPrepareOptions<IResourceReference>,
+    async prepareInvocationImpl(
+        _options: LanguageModelToolInvocationPrepareOptions<IResourceReference>,
+        resourcePath: Uri | undefined,
         token: CancellationToken,
     ): Promise<PreparedToolInvocation> {
-        const resourcePath = resolveFilePath(options.input.resourcePath);
         if (getToolResponseIfNotebook(resourcePath)) {
             return {};
         }
diff --git a/src/client/chat/getPythonEnvTool.ts b/src/client/chat/getPythonEnvTool.ts
index 91184d8e4ef2..ed1dd0374424 100644
--- a/src/client/chat/getPythonEnvTool.ts
+++ b/src/client/chat/getPythonEnvTool.ts
@@ -10,26 +10,22 @@ import {
     LanguageModelToolInvocationPrepareOptions,
     LanguageModelToolResult,
     PreparedToolInvocation,
-    workspace,
+    Uri,
 } from 'vscode';
 import { PythonExtension } from '../api/types';
 import { IServiceContainer } from '../ioc/types';
 import { ICodeExecutionService } from '../terminals/types';
 import { TerminalCodeExecutionProvider } from '../terminals/codeExecution/terminalCodeExecution';
 import { IProcessServiceFactory, IPythonExecutionFactory } from '../common/process/types';
-import {
-    getEnvironmentDetails,
-    getToolResponseIfNotebook,
-    getUntrustedWorkspaceResponse,
-    IResourceReference,
-    raceCancellationError,
-} from './utils';
-import { resolveFilePath } from './utils';
+import { getEnvironmentDetails, getToolResponseIfNotebook, IResourceReference, raceCancellationError } from './utils';
 import { getPythonPackagesResponse } from './listPackagesTool';
 import { ITerminalHelper } from '../common/terminal/types';
 import { getEnvExtApi, useEnvExtension } from '../envExt/api.internal';
+import { ErrorWithTelemetrySafeReason } from '../common/errors/errorUtils';
+import { BaseTool } from './baseTool';
 
-export class GetEnvironmentInfoTool implements LanguageModelTool<IResourceReference> {
+export class GetEnvironmentInfoTool extends BaseTool<IResourceReference>
+    implements LanguageModelTool<IResourceReference> {
     private readonly terminalExecutionService: TerminalCodeExecutionProvider;
     private readonly pythonExecFactory: IPythonExecutionFactory;
     private readonly processServiceFactory: IProcessServiceFactory;
@@ -39,6 +35,7 @@ export class GetEnvironmentInfoTool implements LanguageModelTool<IResourceRefere
         private readonly api: PythonExtension['environments'],
         private readonly serviceContainer: IServiceContainer,
     ) {
+        super(GetEnvironmentInfoTool.toolName);
         this.terminalExecutionService = this.serviceContainer.get<TerminalCodeExecutionProvider>(
             ICodeExecutionService,
             'standard',
@@ -48,15 +45,11 @@ export class GetEnvironmentInfoTool implements LanguageModelTool<IResourceRefere
         this.terminalHelper = this.serviceContainer.get<ITerminalHelper>(ITerminalHelper);
     }
 
-    async invoke(
-        options: LanguageModelToolInvocationOptions<IResourceReference>,
+    async invokeImpl(
+        _options: LanguageModelToolInvocationOptions<IResourceReference>,
+        resourcePath: Uri | undefined,
         token: CancellationToken,
     ): Promise<LanguageModelToolResult> {
-        if (!workspace.isTrusted) {
-            return getUntrustedWorkspaceResponse();
-        }
-
-        const resourcePath = resolveFilePath(options.input.resourcePath);
         const notebookResponse = getToolResponseIfNotebook(resourcePath);
         if (notebookResponse) {
             return notebookResponse;
@@ -66,7 +59,10 @@ export class GetEnvironmentInfoTool implements LanguageModelTool<IResourceRefere
         const envPath = this.api.getActiveEnvironmentPath(resourcePath);
         const environment = await raceCancellationError(this.api.resolveEnvironment(envPath), token);
         if (!environment || !environment.version) {
-            throw new Error('No environment found for the provided resource path: ' + resourcePath?.fsPath);
+            throw new ErrorWithTelemetrySafeReason(
+                'No environment found for the provided resource path: ' + resourcePath?.fsPath,
+                'noEnvFound',
+            );
         }
 
         let packages = '';
@@ -107,11 +103,11 @@ export class GetEnvironmentInfoTool implements LanguageModelTool<IResourceRefere
         return new LanguageModelToolResult([new LanguageModelTextPart(message)]);
     }
 
-    async prepareInvocation?(
-        options: LanguageModelToolInvocationPrepareOptions<IResourceReference>,
+    async prepareInvocationImpl(
+        _options: LanguageModelToolInvocationPrepareOptions<IResourceReference>,
+        resourcePath: Uri | undefined,
         _token: CancellationToken,
     ): Promise<PreparedToolInvocation> {
-        const resourcePath = resolveFilePath(options.input.resourcePath);
         if (getToolResponseIfNotebook(resourcePath)) {
             return {};
         }
diff --git a/src/client/chat/installPackagesTool.ts b/src/client/chat/installPackagesTool.ts
index e359fce110db..f7795620cf13 100644
--- a/src/client/chat/installPackagesTool.ts
+++ b/src/client/chat/installPackagesTool.ts
@@ -10,46 +10,45 @@ import {
     LanguageModelToolInvocationPrepareOptions,
     LanguageModelToolResult,
     PreparedToolInvocation,
-    workspace,
+    Uri,
 } from 'vscode';
 import { PythonExtension } from '../api/types';
 import { IServiceContainer } from '../ioc/types';
 import {
     getEnvDisplayName,
     getToolResponseIfNotebook,
-    getUntrustedWorkspaceResponse,
     IResourceReference,
     isCancellationError,
     isCondaEnv,
     raceCancellationError,
 } from './utils';
-import { resolveFilePath } from './utils';
 import { IModuleInstaller } from '../common/installer/types';
 import { ModuleInstallerType } from '../pythonEnvironments/info';
 import { IDiscoveryAPI } from '../pythonEnvironments/base/locator';
 import { getEnvExtApi, useEnvExtension } from '../envExt/api.internal';
+import { ErrorWithTelemetrySafeReason } from '../common/errors/errorUtils';
+import { BaseTool } from './baseTool';
 
 export interface IInstallPackageArgs extends IResourceReference {
     packageList: string[];
 }
 
-export class InstallPackagesTool implements LanguageModelTool<IInstallPackageArgs> {
+export class InstallPackagesTool extends BaseTool<IInstallPackageArgs>
+    implements LanguageModelTool<IInstallPackageArgs> {
     public static readonly toolName = 'install_python_packages';
     constructor(
         private readonly api: PythonExtension['environments'],
         private readonly serviceContainer: IServiceContainer,
         private readonly discovery: IDiscoveryAPI,
-    ) {}
+    ) {
+        super(InstallPackagesTool.toolName);
+    }
 
-    async invoke(
+    async invokeImpl(
         options: LanguageModelToolInvocationOptions<IInstallPackageArgs>,
+        resourcePath: Uri | undefined,
         token: CancellationToken,
     ): Promise<LanguageModelToolResult> {
-        if (!workspace.isTrusted) {
-            return getUntrustedWorkspaceResponse();
-        }
-
-        const resourcePath = resolveFilePath(options.input.resourcePath);
         const packageCount = options.input.packageList.length;
         const packagePlurality = packageCount === 1 ? 'package' : 'packages';
         const notebookResponse = getToolResponseIfNotebook(resourcePath);
@@ -80,17 +79,26 @@ export class InstallPackagesTool implements LanguageModelTool<IInstallPackageArg
             const envPath = this.api.getActiveEnvironmentPath(resourcePath);
             const environment = await raceCancellationError(this.api.resolveEnvironment(envPath), token);
             if (!environment || !environment.version) {
-                throw new Error('No environment found for the provided resource path: ' + resourcePath?.fsPath);
+                throw new ErrorWithTelemetrySafeReason(
+                    'No environment found for the provided resource path: ' + resourcePath?.fsPath,
+                    'noEnvFound',
+                );
             }
             const isConda = isCondaEnv(environment);
             const installers = this.serviceContainer.getAll<IModuleInstaller>(IModuleInstaller);
             const installerType = isConda ? ModuleInstallerType.Conda : ModuleInstallerType.Pip;
             const installer = installers.find((i) => i.type === installerType);
             if (!installer) {
-                throw new Error(`No installer found for the environment type: ${installerType}`);
+                throw new ErrorWithTelemetrySafeReason(
+                    `No installer found for the environment type: ${installerType}`,
+                    'noInstallerFound',
+                );
             }
             if (!installer.isSupported(resourcePath)) {
-                throw new Error(`Installer ${installerType} not supported for the environment type: ${installerType}`);
+                throw new ErrorWithTelemetrySafeReason(
+                    `Installer ${installerType} not supported for the environment type: ${installerType}`,
+                    'installerNotSupported',
+                );
             }
             for (const packageName of options.input.packageList) {
                 await installer.installModule(packageName, resourcePath, token, undefined, {
@@ -110,11 +118,11 @@ export class InstallPackagesTool implements LanguageModelTool<IInstallPackageArg
         }
     }
 
-    async prepareInvocation?(
+    async prepareInvocationImpl(
         options: LanguageModelToolInvocationPrepareOptions<IInstallPackageArgs>,
+        resourcePath: Uri | undefined,
         token: CancellationToken,
     ): Promise<PreparedToolInvocation> {
-        const resourcePath = resolveFilePath(options.input.resourcePath);
         const packageCount = options.input.packageList.length;
         if (getToolResponseIfNotebook(resourcePath)) {
             return {};
diff --git a/src/client/chat/selectEnvTool.ts b/src/client/chat/selectEnvTool.ts
index 5f1c2f6b7c36..9eeebdfc1b56 100644
--- a/src/client/chat/selectEnvTool.ts
+++ b/src/client/chat/selectEnvTool.ts
@@ -24,10 +24,8 @@ import {
     doesWorkspaceHaveVenvOrCondaEnv,
     getEnvDetailsForResponse,
     getToolResponseIfNotebook,
-    getUntrustedWorkspaceResponse,
     IResourceReference,
 } from './utils';
-import { resolveFilePath } from './utils';
 import { ITerminalHelper } from '../common/terminal/types';
 import { raceTimeout } from '../common/utils/async';
 import { Commands, Octicons } from '../common/constants';
@@ -38,12 +36,14 @@ import { Common, InterpreterQuickPickList } from '../common/utils/localize';
 import { showQuickPick } from '../common/vscodeApis/windowApis';
 import { DisposableStore } from '../common/utils/resourceLifecycle';
 import { traceError, traceVerbose, traceWarn } from '../logging';
+import { BaseTool } from './baseTool';
 
 export interface ISelectPythonEnvToolArguments extends IResourceReference {
     reason?: 'cancelled';
 }
 
-export class SelectPythonEnvTool implements LanguageModelTool<ISelectPythonEnvToolArguments> {
+export class SelectPythonEnvTool extends BaseTool<ISelectPythonEnvToolArguments>
+    implements LanguageModelTool<ISelectPythonEnvToolArguments> {
     private readonly terminalExecutionService: TerminalCodeExecutionProvider;
     private readonly terminalHelper: ITerminalHelper;
     public static readonly toolName = 'selectEnvironment';
@@ -51,6 +51,7 @@ export class SelectPythonEnvTool implements LanguageModelTool<ISelectPythonEnvTo
         private readonly api: PythonExtension['environments'],
         private readonly serviceContainer: IServiceContainer,
     ) {
+        super(SelectPythonEnvTool.toolName);
         this.terminalExecutionService = this.serviceContainer.get<TerminalCodeExecutionProvider>(
             ICodeExecutionService,
             'standard',
@@ -58,15 +59,11 @@ export class SelectPythonEnvTool implements LanguageModelTool<ISelectPythonEnvTo
         this.terminalHelper = this.serviceContainer.get<ITerminalHelper>(ITerminalHelper);
     }
 
-    async invoke(
+    async invokeImpl(
         options: LanguageModelToolInvocationOptions<ISelectPythonEnvToolArguments>,
+        resource: Uri | undefined,
         token: CancellationToken,
     ): Promise<LanguageModelToolResult> {
-        if (!workspace.isTrusted) {
-            return getUntrustedWorkspaceResponse();
-        }
-
-        const resource = resolveFilePath(options.input.resourcePath);
         let selected: boolean | undefined = false;
         const hasVenvOrCondaEnvInWorkspaceFolder = doesWorkspaceHaveVenvOrCondaEnv(resource, this.api);
         if (options.input.reason === 'cancelled' || hasVenvOrCondaEnvInWorkspaceFolder) {
@@ -115,11 +112,11 @@ export class SelectPythonEnvTool implements LanguageModelTool<ISelectPythonEnvTo
         ]);
     }
 
-    async prepareInvocation?(
+    async prepareInvocationImpl(
         options: LanguageModelToolInvocationPrepareOptions<ISelectPythonEnvToolArguments>,
+        resource: Uri | undefined,
         _token: CancellationToken,
     ): Promise<PreparedToolInvocation> {
-        const resource = resolveFilePath(options.input.resourcePath);
         if (getToolResponseIfNotebook(resource)) {
             return {};
         }
diff --git a/src/client/chat/utils.ts b/src/client/chat/utils.ts
index 7c5a4dd9725f..bddd26049668 100644
--- a/src/client/chat/utils.ts
+++ b/src/client/chat/utils.ts
@@ -18,6 +18,7 @@ import { Conda } from '../pythonEnvironments/common/environmentManagers/conda';
 import { JUPYTER_EXTENSION_ID, NotebookCellScheme } from '../common/constants';
 import { dirname, join } from 'path';
 import { resolveEnvironment, useEnvExtension } from '../envExt/api.internal';
+import { ErrorWithTelemetrySafeReason } from '../common/errors/errorUtils';
 
 export interface IResourceReference {
     resourcePath?: string;
@@ -85,7 +86,10 @@ export async function getEnvironmentDetails(
             (await raceCancellationError(resolveEnvironment(envPath.id), token)) ||
             (await raceCancellationError(resolveEnvironment(envPath.path), token));
         if (!environment || !environment.version) {
-            throw new Error('No environment found for the provided resource path: ' + resourcePath?.fsPath);
+            throw new ErrorWithTelemetrySafeReason(
+                'No environment found for the provided resource path: ' + resourcePath?.fsPath,
+                'noEnvFound',
+            );
         }
         envVersion = environment.version;
         try {
@@ -104,7 +108,10 @@ export async function getEnvironmentDetails(
     } else {
         const environment = await raceCancellationError(api.resolveEnvironment(envPath), token);
         if (!environment || !environment.version) {
-            throw new Error('No environment found for the provided resource path: ' + resourcePath?.fsPath);
+            throw new ErrorWithTelemetrySafeReason(
+                'No environment found for the provided resource path: ' + resourcePath?.fsPath,
+                'noEnvFound',
+            );
         }
         envType = environment.environment?.type || 'unknown';
         envVersion = environment.version.sysVersion || 'unknown';
@@ -126,10 +133,6 @@ export async function getEnvironmentDetails(
     return message.join('\n');
 }
 
-export function getUntrustedWorkspaceResponse() {
-    return new LanguageModelToolResult([new LanguageModelTextPart('Cannot use this tool in an untrusted workspace.')]);
-}
-
 export async function getTerminalCommand(
     environment: ResolvedEnvironment,
     resource: Uri | undefined,
@@ -244,12 +247,15 @@ export async function getEnvDetailsForResponse(
     token: CancellationToken,
 ): Promise<LanguageModelToolResult> {
     if (!workspace.isTrusted) {
-        throw new Error('Cannot use this tool in an untrusted workspace.');
+        throw new ErrorWithTelemetrySafeReason('Cannot use this tool in an untrusted workspace.', 'untrustedWorkspace');
     }
     const envPath = api.getActiveEnvironmentPath(resource);
     environment = environment || (await raceCancellationError(api.resolveEnvironment(envPath), token));
     if (!environment || !environment.version) {
-        throw new Error('No environment found for the provided resource path: ' + resource?.fsPath);
+        throw new ErrorWithTelemetrySafeReason(
+            'No environment found for the provided resource path: ' + resource?.fsPath,
+            'noEnvFound',
+        );
     }
     const message = await getEnvironmentDetails(
         resource,
diff --git a/src/client/common/errors/errorUtils.ts b/src/client/common/errors/errorUtils.ts
index 2c666acb105b..7867d5ccfe30 100644
--- a/src/client/common/errors/errorUtils.ts
+++ b/src/client/common/errors/errorUtils.ts
@@ -1,8 +1,6 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 
-import { EOL } from 'os';
-
 export class ErrorUtils {
     public static outputHasModuleNotInstalledError(moduleName: string, content?: string): boolean {
         return content &&
@@ -14,13 +12,10 @@ export class ErrorUtils {
 }
 
 /**
- * Wraps an error with a custom error message, retaining the call stack information.
+ * An error class that contains a telemetry safe reason.
  */
-export class WrappedError extends Error {
-    constructor(message: string, originalException: Error) {
+export class ErrorWithTelemetrySafeReason extends Error {
+    constructor(message: string, public readonly telemetrySafeReason: string) {
         super(message);
-        // Retain call stack that trapped the error and rethrows this error.
-        // Also retain the call stack of the original error.
-        this.stack = `${new Error('').stack}${EOL}${EOL}${originalException.stack}`;
     }
 }
diff --git a/src/client/telemetry/constants.ts b/src/client/telemetry/constants.ts
index ecc44177338a..eff32a6e3299 100644
--- a/src/client/telemetry/constants.ts
+++ b/src/client/telemetry/constants.ts
@@ -7,6 +7,7 @@ export enum EventName {
     FORMAT_ON_TYPE = 'FORMAT.FORMAT_ON_TYPE',
     EDITOR_LOAD = 'EDITOR.LOAD',
     REPL = 'REPL',
+    INVOKE_TOOL = 'INVOKE_TOOL',
     CREATE_NEW_FILE_COMMAND = 'CREATE_NEW_FILE_COMMAND',
     SELECT_INTERPRETER = 'SELECT_INTERPRETER',
     SELECT_INTERPRETER_ENTER_BUTTON = 'SELECT_INTERPRETER_ENTER_BUTTON',
diff --git a/src/client/telemetry/index.ts b/src/client/telemetry/index.ts
index 6c97bd083d96..a387e45d694a 100644
--- a/src/client/telemetry/index.ts
+++ b/src/client/telemetry/index.ts
@@ -1980,6 +1980,32 @@ export interface IEventNamePropertyMapping {
          */
         replType: 'Terminal' | 'Native' | 'manualTerminal' | `runningScript`;
     };
+    /**
+     * Telemetry event sent when invoking a Tool
+     */
+    /* __GDPR__
+       "invokeTool" : {
+           "duration" : { "classification": "SystemMetaData", "purpose": "FeatureInsight", "isMeasurement": true, "owner": "donjayamanne" },
+           "toolName" : { "classification": "SystemMetaData", "purpose": "FeatureInsight", "owner": "donjayamanne" },
+            "failed": {"classification":"SystemMetaData","purpose":"FeatureInsight","comment":"Whether there was a failure. Common to most of the events.", "owner": "donjayamanne" },
+            "failureCategory": {"classification":"SystemMetaData","purpose":"FeatureInsight","comment":"A reason that we generate (e.g. kerneldied, noipykernel, etc), more like a category of the error. Common to most of the events.", "owner": "donjayamanne" }
+       }
+     */
+    [EventName.INVOKE_TOOL]: {
+        /**
+         * Tool name.
+         */
+        toolName: string;
+        /**
+         * Whether there was a failure.
+         * Common to most of the events.
+         */
+        failed: boolean;
+        /**
+         * A reason the error was thrown.
+         */
+        failureCategory?: string;
+    };
     /**
      * Telemetry event sent if and when user configure tests command. This command can be trigerred from multiple places in the extension. (Command palette, prompt etc.)
      */

From 6e9c76c16b9503373c6708541fc5b28e92198dab Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Mon, 30 Jun 2025 09:01:28 -0700
Subject: [PATCH 007/178] add exp setting for envs ext (#25195)

---
 gulpfile.js                       |  8 +++++---
 package.nls.json                  | 12 ++++++------
 src/client/envExt/api.internal.ts |  5 ++++-
 3 files changed, 15 insertions(+), 10 deletions(-)

diff --git a/gulpfile.js b/gulpfile.js
index f921ff7fd1b1..0b919f16572a 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -98,9 +98,11 @@ async function addExtensionPackDependencies() {
     // extension dependencies need not be installed during development
     const packageJsonContents = await fsExtra.readFile('package.json', 'utf-8');
     const packageJson = JSON.parse(packageJsonContents);
-    packageJson.extensionPack = ['ms-python.vscode-pylance', 'ms-python.debugpy'].concat(
-        packageJson.extensionPack ? packageJson.extensionPack : [],
-    );
+    packageJson.extensionPack = [
+        'ms-python.vscode-pylance',
+        'ms-python.debugpy',
+        'ms-python.vscode-python-envs',
+    ].concat(packageJson.extensionPack ? packageJson.extensionPack : []);
     // Remove potential duplicates.
     packageJson.extensionPack = packageJson.extensionPack.filter(
         (item, index) => packageJson.extensionPack.indexOf(item) === index,
diff --git a/package.nls.json b/package.nls.json
index 560e78de05a5..00c96c09b19a 100644
--- a/package.nls.json
+++ b/package.nls.json
@@ -38,7 +38,7 @@
     "python.debugger.deprecatedMessage": "This configuration will be deprecated soon. Please replace `python` with `debugpy` to use the new Python Debugger extension.",
     "python.defaultInterpreterPath.description": "Path to default Python to use when extension loads up for the first time, no longer used once an interpreter is selected for the workspace. See [here](https://aka.ms/AAfekmf) to understand when this is used",
     "python.envFile.description": "Absolute path to a file containing environment variable definitions.",
-    "python.useEnvironmentsExtension.description": "Enables the Python Environments extension.",
+    "python.useEnvironmentsExtension.description": "Enables the Python Environments extension. Requires window reload on change.",
     "python.experiments.enabled.description": "Enables A/B tests experiments in the Python extension. If enabled, you may get included in proposed enhancements and/or features.",
     "python.experiments.optInto.description": "List of experiments to opt into. If empty, user is assigned the default experiment groups. See [here](https://github.com/microsoft/vscode-python/wiki/AB-Experiments) for more details.",
     "python.experiments.optOutFrom.description": "List of experiments to opt out of. If empty, user is assigned the default experiment groups. See [here](https://github.com/microsoft/vscode-python/wiki/AB-Experiments) for more details.",
@@ -92,7 +92,7 @@
     "python.venvPath.description": "Path to folder with a list of Virtual Environments (e.g. ~/.pyenv, ~/Envs, ~/.virtualenvs).",
     "walkthrough.pythonWelcome.title": "Get Started with Python Development",
     "walkthrough.pythonWelcome.description": "Your first steps to set up a Python project with all the powerful tools and features that the Python extension has to offer!",
-     "walkthrough.step.python.createPythonFile.title": "Create a Python file",
+    "walkthrough.step.python.createPythonFile.title": "Create a Python file",
     "walkthrough.step.python.createPythonFolder.title": "Open a Python project folder",
     "walkthrough.step.python.createPythonFile.description": {
         "message": "[Open](command:toSide:workbench.action.files.openFile) or [create](command:toSide:workbench.action.files.newUntitledFile?%7B%22languageId%22%3A%22python%22%7D) a Python file - make sure to save it as \".py\".\n[Create Python File](command:toSide:workbench.action.files.newUntitledFile?%7B%22languageId%22%3A%22python%22%7D)",
@@ -104,7 +104,7 @@
     },
     "walkthrough.step.python.createPythonFolder.description": {
         "message": "[Open](command:workbench.action.files.openFolder) or create a project folder.\n[Open Project Folder](command:workbench.action.files.openFolder)",
-        "comment":  [
+        "comment": [
             "{Locked='](command:workbench.action.files.openFolder'}",
             "Do not translate the 'command:*' part inside of the '(..)'. It is an internal command syntax for VS Code",
             "Please make sure there is no space between the right bracket and left parenthesis:  ]( this is an internal syntax for links"
@@ -134,7 +134,7 @@
     "walkthrough.step.python.createEnvironment.title": "Select or create a Python environment",
     "walkthrough.step.python.createEnvironment.description": {
         "message": "Create an environment for your Python project or use [Select Python Interpreter](command:python.setInterpreter) to select an existing one.\n[Create Environment](command:python.createEnvironment)\n**Tip**: Run the ``Python: Create Environment`` command in the [Command Palette](command:workbench.action.showCommands).",
-        "comment":  [
+        "comment": [
             "{Locked='](command:python.createEnvironment'}",
             "{Locked='](command:workbench.action.showCommands'}",
             "{Locked='](command:python.setInterpreter'}",
@@ -146,8 +146,8 @@
     "walkthrough.step.python.runAndDebug.description": "Open your Python file  and click on the play button on the top right of the editor, or press F5 when on the file and select \"Python File\" to run with the debugger. \n  \n[Learn more](https://code.visualstudio.com/docs/python/python-tutorial#_run-hello-world)",
     "walkthrough.step.python.learnMoreWithDS.title": "Keep exploring!",
     "walkthrough.step.python.learnMoreWithDS.description": {
-        "message":"🎨 Explore all the features the Python extension has to offer by looking for \"Python\" in the [Command Palette](command:workbench.action.showCommands). \n 📈 Learn more about getting started with [data science](command:workbench.action.openWalkthrough?%7B%22category%22%3A%22ms-python.python%23pythonDataScienceWelcome%22%2C%22step%22%3A%22ms-python.python%23python.createNewNotebook%22%7D) in Python. \n ✨ Take a look at our [Release Notes](https://aka.ms/AA8dxtb) to learn more about the latest features. \n \n[Follow along with the Python Tutorial](https://aka.ms/AA8dqti)",
-        "comment":[
+        "message": "🎨 Explore all the features the Python extension has to offer by looking for \"Python\" in the [Command Palette](command:workbench.action.showCommands). \n 📈 Learn more about getting started with [data science](command:workbench.action.openWalkthrough?%7B%22category%22%3A%22ms-python.python%23pythonDataScienceWelcome%22%2C%22step%22%3A%22ms-python.python%23python.createNewNotebook%22%7D) in Python. \n ✨ Take a look at our [Release Notes](https://aka.ms/AA8dxtb) to learn more about the latest features. \n \n[Follow along with the Python Tutorial](https://aka.ms/AA8dqti)",
+        "comment": [
             "{Locked='](command:workbench.action.showCommands'}",
             "{Locked='](command:workbench.action.openWalkthrough?%7B%22category%22%3A%22ms-python.python%23pythonDataScienceWelcome%22%2C%22step%22%3A%22ms-python.python%23python.createNewNotebook%22%7D'}",
             "Do not translate the 'command:*' part inside of the '(..)'. It is an internal command syntax for VS Code",
diff --git a/src/client/envExt/api.internal.ts b/src/client/envExt/api.internal.ts
index 552e31a0598e..c4247f63a3c5 100644
--- a/src/client/envExt/api.internal.ts
+++ b/src/client/envExt/api.internal.ts
@@ -14,6 +14,7 @@ import {
 } from './types';
 import { executeCommand } from '../common/vscodeApis/commandApis';
 import { IInterpreterPathService } from '../common/types';
+import { getConfiguration } from '../common/vscodeApis/workspaceApis';
 
 export const ENVS_EXTENSION_ID = 'ms-python.vscode-python-envs';
 
@@ -22,7 +23,9 @@ export function useEnvExtension(): boolean {
     if (_useExt !== undefined) {
         return _useExt;
     }
-    _useExt = !!getExtension(ENVS_EXTENSION_ID);
+    const inExpSetting = getConfiguration('python').get<boolean>('useEnvironmentsExtension', false);
+    // If extension is installed and in experiment, then use it.
+    _useExt = !!getExtension(ENVS_EXTENSION_ID) && inExpSetting;
     return _useExt;
 }
 

From 8c3a49fe6ec4aabef26f10feda9452aa259811bc Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Mon, 30 Jun 2025 13:10:04 -0700
Subject: [PATCH 008/178] edit gulpfile so envs ext is only bundled in
 pre-release (#25227)

---
 .github/actions/build-vsix/action.yml |  9 ++++++++-
 build/azure-pipeline.pre-release.yml  |  2 +-
 gulpfile.js                           | 19 +++++++++++++------
 package.json                          |  1 +
 4 files changed, 23 insertions(+), 8 deletions(-)

diff --git a/.github/actions/build-vsix/action.yml b/.github/actions/build-vsix/action.yml
index eaabe5141e8b..1922f6196ee5 100644
--- a/.github/actions/build-vsix/action.yml
+++ b/.github/actions/build-vsix/action.yml
@@ -70,8 +70,15 @@ runs:
       shell: bash
 
     - name: Update optional extension dependencies
-      run: npm run addExtensionPackDependencies
+      run: |
+        if [[ "${VSIX_NAME}" == *"insiders"* ]]; then
+        npm run addExtensionPackDependenciesPreRelease
+        else
+        npm run addExtensionPackDependencies
+        fi
       shell: bash
+      env:
+        VSIX_NAME: ${{ inputs.vsix_name }}
 
     - name: Build Webpack
       run: |
diff --git a/build/azure-pipeline.pre-release.yml b/build/azure-pipeline.pre-release.yml
index ab087673f1e7..82c991189a82 100644
--- a/build/azure-pipeline.pre-release.yml
+++ b/build/azure-pipeline.pre-release.yml
@@ -91,7 +91,7 @@ extends:
       - script: python ./build/update_package_file.py
         displayName: Update telemetry in package.json
 
-      - script: npm run addExtensionPackDependencies
+      - script: npm run addExtensionPackDependenciesPreRelease
         displayName: Update optional extension dependencies
 
       - script: npx gulp prePublishBundle
diff --git a/gulpfile.js b/gulpfile.js
index 0b919f16572a..3a03332c4f5c 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -93,16 +93,23 @@ gulp.task('addExtensionPackDependencies', async () => {
     await addExtensionPackDependencies();
 });
 
-async function addExtensionPackDependencies() {
+// This task adds 'ms-python.vscode-python-envs' as required deps only for pre-release builds.
+gulp.task('addExtensionPackDependenciesPreRelease', async () => {
+    await buildLicense();
+    await addExtensionPackDependencies(true);
+});
+
+async function addExtensionPackDependencies(isPreRelease = false) {
     // Update the package.json to add extension pack dependencies at build time so that
     // extension dependencies need not be installed during development
     const packageJsonContents = await fsExtra.readFile('package.json', 'utf-8');
     const packageJson = JSON.parse(packageJsonContents);
-    packageJson.extensionPack = [
-        'ms-python.vscode-pylance',
-        'ms-python.debugpy',
-        'ms-python.vscode-python-envs',
-    ].concat(packageJson.extensionPack ? packageJson.extensionPack : []);
+    let deps = ['ms-python.vscode-pylance', 'ms-python.debugpy'];
+    if (isPreRelease) {
+        deps.push('ms-python.vscode-python-envs');
+    }
+    packageJson.extensionPack = deps.concat(packageJson.extensionPack ? packageJson.extensionPack : []);
+
     // Remove potential duplicates.
     packageJson.extensionPack = packageJson.extensionPack.filter(
         (item, index) => packageJson.extensionPack.indexOf(item) === index,
diff --git a/package.json b/package.json
index 47cb84c49fbd..6d76ded9febc 100644
--- a/package.json
+++ b/package.json
@@ -1671,6 +1671,7 @@
         "format-fix": "prettier --write 'src/**/*.ts' 'build/**/*.js' '.github/**/*.yml' gulpfile.js",
         "clean": "gulp clean",
         "addExtensionPackDependencies": "gulp addExtensionPackDependencies",
+        "addExtensionPackDependenciesPreRelease": "gulp addExtensionPackDependenciesPreRelease",
         "updateBuildNumber": "gulp updateBuildNumber",
         "verifyBundle": "gulp verifyBundle",
         "webpack": "webpack"

From 81ee4de55b55fbddcd9e7a201c320b21a9dc3a3a Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Mon, 30 Jun 2025 14:59:57 -0700
Subject: [PATCH 009/178] Update brace-expansion to version 2.0.2 (#25229)

---
 package-lock.json | 64 +++++++++++++++++++++++++----------------------
 1 file changed, 34 insertions(+), 30 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index e07f5d775c3f..8d500006eedb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2157,10 +2157,11 @@
             }
         },
         "node_modules/@typescript-eslint/typescript-estree/node_modules/brace-expansion": {
-            "version": "2.0.1",
-            "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.1.tgz",
-            "integrity": "sha512-XnAIvQ8eM+kC6aULx6wuQiwVsnzsi9d3WxzV3FpWTGA19F621kwdbsAcFKXgKUHZWsy+mY6iL1sHTxWEFCytDA==",
+            "version": "2.0.2",
+            "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.2.tgz",
+            "integrity": "sha512-Jt0vHyM+jmUBqojB7E1NIYadt0vI0Qxjxd2TErW94wDz+E2LAm5vKMXXwg6ZZBTHPuUlDgQHKXvjGBdfcF1ZDQ==",
             "dev": true,
+            "license": "MIT",
             "dependencies": {
                 "balanced-match": "^1.0.0"
             }
@@ -3472,9 +3473,10 @@
             "dev": true
         },
         "node_modules/brace-expansion": {
-            "version": "1.1.11",
-            "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
-            "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
+            "version": "1.1.12",
+            "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.12.tgz",
+            "integrity": "sha512-9T9UjW3r0UW5c1Q7GTwllptXwhvYmEzFhzMfZ9H7FQWt+uZePjZPjBP/W1ZEyZ1twGWom5/56TF4lPcqjnDHcg==",
+            "license": "MIT",
             "dependencies": {
                 "balanced-match": "^1.0.0",
                 "concat-map": "0.0.1"
@@ -9918,9 +9920,10 @@
             }
         },
         "node_modules/minimatch/node_modules/brace-expansion": {
-            "version": "2.0.1",
-            "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.1.tgz",
-            "integrity": "sha512-XnAIvQ8eM+kC6aULx6wuQiwVsnzsi9d3WxzV3FpWTGA19F621kwdbsAcFKXgKUHZWsy+mY6iL1sHTxWEFCytDA==",
+            "version": "2.0.2",
+            "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.2.tgz",
+            "integrity": "sha512-Jt0vHyM+jmUBqojB7E1NIYadt0vI0Qxjxd2TErW94wDz+E2LAm5vKMXXwg6ZZBTHPuUlDgQHKXvjGBdfcF1ZDQ==",
+            "license": "MIT",
             "dependencies": {
                 "balanced-match": "^1.0.0"
             }
@@ -10062,9 +10065,9 @@
             "dev": true
         },
         "node_modules/mocha/node_modules/brace-expansion": {
-            "version": "2.0.1",
-            "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.1.tgz",
-            "integrity": "sha512-XnAIvQ8eM+kC6aULx6wuQiwVsnzsi9d3WxzV3FpWTGA19F621kwdbsAcFKXgKUHZWsy+mY6iL1sHTxWEFCytDA==",
+            "version": "2.0.2",
+            "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.2.tgz",
+            "integrity": "sha512-Jt0vHyM+jmUBqojB7E1NIYadt0vI0Qxjxd2TErW94wDz+E2LAm5vKMXXwg6ZZBTHPuUlDgQHKXvjGBdfcF1ZDQ==",
             "dev": true,
             "license": "MIT",
             "dependencies": {
@@ -14369,9 +14372,10 @@
             }
         },
         "node_modules/vscode-languageclient/node_modules/brace-expansion": {
-            "version": "2.0.1",
-            "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.1.tgz",
-            "integrity": "sha512-XnAIvQ8eM+kC6aULx6wuQiwVsnzsi9d3WxzV3FpWTGA19F621kwdbsAcFKXgKUHZWsy+mY6iL1sHTxWEFCytDA==",
+            "version": "2.0.2",
+            "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.2.tgz",
+            "integrity": "sha512-Jt0vHyM+jmUBqojB7E1NIYadt0vI0Qxjxd2TErW94wDz+E2LAm5vKMXXwg6ZZBTHPuUlDgQHKXvjGBdfcF1ZDQ==",
+            "license": "MIT",
             "dependencies": {
                 "balanced-match": "^1.0.0"
             }
@@ -16778,9 +16782,9 @@
             },
             "dependencies": {
                 "brace-expansion": {
-                    "version": "2.0.1",
-                    "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.1.tgz",
-                    "integrity": "sha512-XnAIvQ8eM+kC6aULx6wuQiwVsnzsi9d3WxzV3FpWTGA19F621kwdbsAcFKXgKUHZWsy+mY6iL1sHTxWEFCytDA==",
+                    "version": "2.0.2",
+                    "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.2.tgz",
+                    "integrity": "sha512-Jt0vHyM+jmUBqojB7E1NIYadt0vI0Qxjxd2TErW94wDz+E2LAm5vKMXXwg6ZZBTHPuUlDgQHKXvjGBdfcF1ZDQ==",
                     "dev": true,
                     "requires": {
                         "balanced-match": "^1.0.0"
@@ -17779,9 +17783,9 @@
             "dev": true
         },
         "brace-expansion": {
-            "version": "1.1.11",
-            "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
-            "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
+            "version": "1.1.12",
+            "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.12.tgz",
+            "integrity": "sha512-9T9UjW3r0UW5c1Q7GTwllptXwhvYmEzFhzMfZ9H7FQWt+uZePjZPjBP/W1ZEyZ1twGWom5/56TF4lPcqjnDHcg==",
             "requires": {
                 "balanced-match": "^1.0.0",
                 "concat-map": "0.0.1"
@@ -22645,9 +22649,9 @@
             },
             "dependencies": {
                 "brace-expansion": {
-                    "version": "2.0.1",
-                    "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.1.tgz",
-                    "integrity": "sha512-XnAIvQ8eM+kC6aULx6wuQiwVsnzsi9d3WxzV3FpWTGA19F621kwdbsAcFKXgKUHZWsy+mY6iL1sHTxWEFCytDA==",
+                    "version": "2.0.2",
+                    "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.2.tgz",
+                    "integrity": "sha512-Jt0vHyM+jmUBqojB7E1NIYadt0vI0Qxjxd2TErW94wDz+E2LAm5vKMXXwg6ZZBTHPuUlDgQHKXvjGBdfcF1ZDQ==",
                     "requires": {
                         "balanced-match": "^1.0.0"
                     }
@@ -22723,9 +22727,9 @@
                     "dev": true
                 },
                 "brace-expansion": {
-                    "version": "2.0.1",
-                    "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.1.tgz",
-                    "integrity": "sha512-XnAIvQ8eM+kC6aULx6wuQiwVsnzsi9d3WxzV3FpWTGA19F621kwdbsAcFKXgKUHZWsy+mY6iL1sHTxWEFCytDA==",
+                    "version": "2.0.2",
+                    "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.2.tgz",
+                    "integrity": "sha512-Jt0vHyM+jmUBqojB7E1NIYadt0vI0Qxjxd2TErW94wDz+E2LAm5vKMXXwg6ZZBTHPuUlDgQHKXvjGBdfcF1ZDQ==",
                     "dev": true,
                     "requires": {
                         "balanced-match": "^1.0.0"
@@ -25989,9 +25993,9 @@
             },
             "dependencies": {
                 "brace-expansion": {
-                    "version": "2.0.1",
-                    "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.1.tgz",
-                    "integrity": "sha512-XnAIvQ8eM+kC6aULx6wuQiwVsnzsi9d3WxzV3FpWTGA19F621kwdbsAcFKXgKUHZWsy+mY6iL1sHTxWEFCytDA==",
+                    "version": "2.0.2",
+                    "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.2.tgz",
+                    "integrity": "sha512-Jt0vHyM+jmUBqojB7E1NIYadt0vI0Qxjxd2TErW94wDz+E2LAm5vKMXXwg6ZZBTHPuUlDgQHKXvjGBdfcF1ZDQ==",
                     "requires": {
                         "balanced-match": "^1.0.0"
                     }

From 9b89180cd498d91f5c68e013f7d796b216052d1f Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Wed, 2 Jul 2025 22:13:52 +0000
Subject: [PATCH 010/178] fix bugs in telemetry for envs ext (#25232)

- wasn't sending `EventName ==
"ms-python.python/execution_code"&&Properties["trigger"]=="icon` when I
run a python file using the play button
- when opening the editor and have a venv selected in the panel,
telemetry event is sending the editor.load event with InterpreterType as
System instead of venv
---
 src/client/startupTelemetry.ts                  | 17 ++++++++++++++---
 .../codeExecution/codeExecutionManager.ts       |  3 +++
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/src/client/startupTelemetry.ts b/src/client/startupTelemetry.ts
index 544fb24251ef..5a2c12e2dd37 100644
--- a/src/client/startupTelemetry.ts
+++ b/src/client/startupTelemetry.ts
@@ -16,6 +16,7 @@ import { sendTelemetryEvent } from './telemetry';
 import { EventName } from './telemetry/constants';
 import { EditorLoadTelemetry } from './telemetry/types';
 import { IStartupDurations } from './types';
+import { useEnvExtension } from './envExt/api.internal';
 
 export async function sendStartupTelemetry(
     activatedPromise: Promise<any>,
@@ -105,9 +106,19 @@ async function getActivationTelemetryProps(
     // finish. API getActiveInterpreter() does not block on windows registry by default as
     // it is slow.
     await interpreterService.refreshPromise;
-    const interpreter = await interpreterService
-        .getActiveInterpreter()
-        .catch<PythonEnvironment | undefined>(() => undefined);
+    let interpreter: PythonEnvironment | undefined;
+
+    // include main workspace uri if using env extension
+    if (useEnvExtension()) {
+        interpreter = await interpreterService
+            .getActiveInterpreter(mainWorkspaceUri)
+            .catch<PythonEnvironment | undefined>(() => undefined);
+    } else {
+        interpreter = await interpreterService
+            .getActiveInterpreter()
+            .catch<PythonEnvironment | undefined>(() => undefined);
+    }
+
     const pythonVersion = interpreter && interpreter.version ? interpreter.version.raw : undefined;
     const interpreterType = interpreter ? interpreter.envType : undefined;
     if (interpreterType === EnvironmentType.Unknown) {
diff --git a/src/client/terminals/codeExecution/codeExecutionManager.ts b/src/client/terminals/codeExecution/codeExecutionManager.ts
index b1dc328d137e..d5eb69efba20 100644
--- a/src/client/terminals/codeExecution/codeExecutionManager.ts
+++ b/src/client/terminals/codeExecution/codeExecutionManager.ts
@@ -48,6 +48,9 @@ export class CodeExecutionManager implements ICodeExecutionManager {
                             } catch (ex) {
                                 traceError('Failed to execute file in terminal', ex);
                             }
+                            sendTelemetryEvent(EventName.ENVIRONMENT_CHECK_TRIGGER, undefined, {
+                                trigger: 'run-in-terminal',
+                            });
                             return;
                         }
 

From 3699940850f13a5fcf89d1cb51b6ab71b0c67142 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 7 Jul 2025 11:31:38 -0700
Subject: [PATCH 011/178] Bump typing-extensions from 4.13.2 to 4.14.1 (#25237)

Bumps [typing-extensions](https://github.com/python/typing_extensions)
from 4.13.2 to 4.14.1.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/python/typing_extensions/releases">typing-extensions's
releases</a>.</em></p>
<blockquote>
<h2>4.14.1</h2>
<h1>Release 4.14.1 (July 4, 2025)</h1>
<ul>
<li>Fix usage of <code>typing_extensions.TypedDict</code> nested inside
other types
(e.g., <code>typing.Type[typing_extensions.TypedDict]</code>). This is
not allowed by the
type system but worked on older versions, so we maintain support.</li>
</ul>
<h2>4.14.0</h2>
<p>This release adds several new features, including experimental
support for inline typed dictionaries (<a
href="https://peps.python.org/pep-0764/">PEP 764</a>) and sentinels (<a
href="https://peps.python.org/pep-0661/">PEP 661</a>), and support for
changes in Python 3.14. In addition, Python 3.8 is no longer
supported.</p>
<p>Changes since 4.14.0rc1:</p>
<ul>
<li>Remove <code>__or__</code> and <code>__ror__</code> methods from
<code>typing_extensions.Sentinel</code>
on Python versions &lt;3.10. PEP 604 was introduced in Python 3.10, and
<code>typing_extensions</code> does not generally attempt to backport
PEP-604 methods
to prior versions.</li>
<li>Further update <code>typing_extensions.evaluate_forward_ref</code>
with changes in Python 3.14.</li>
</ul>
<p>Changes included in 4.14.0rc1:</p>
<ul>
<li>Drop support for Python 3.8 (including PyPy-3.8). Patch by <a
href="https://github.com/Viicos">Victorien Plot</a>.</li>
<li>Do not attempt to re-export names that have been removed from
<code>typing</code>,
anticipating the removal of <code>typing.no_type_check_decorator</code>
in Python 3.15.
Patch by Jelle Zijlstra.</li>
<li>Update <code>typing_extensions.Format</code>,
<code>typing_extensions.evaluate_forward_ref</code>, and
<code>typing_extensions.TypedDict</code> to align
with changes in Python 3.14. Patches by Jelle Zijlstra.</li>
<li>Fix tests for Python 3.14 and 3.15. Patches by Jelle Zijlstra.</li>
</ul>
<p>New features:</p>
<ul>
<li>Add support for inline typed dictionaries (<a
href="https://peps.python.org/pep-0764/">PEP 764</a>).
Patch by <a href="https://github.com/Viicos">Victorien Plot</a>.</li>
<li>Add <code>typing_extensions.Reader</code> and
<code>typing_extensions.Writer</code>. Patch by
Sebastian Rittau.</li>
<li>Add support for sentinels (<a
href="https://peps.python.org/pep-0661/">PEP 661</a>). Patch by
<a href="https://github.com/Viicos">Victorien Plot</a>.</li>
</ul>
<h2>4.14.0rc1</h2>
<p>Major changes:</p>
<ul>
<li>Drop support for Python 3.8 (including PyPy-3.8). Patch by <a
href="https://github.com/Viicos">Victorien Plot</a>.</li>
<li>Do not attempt to re-export names that have been removed from
<code>typing</code>,
anticipating the removal of <code>typing.no_type_check_decorator</code>
in Python 3.15.
Patch by Jelle Zijlstra.</li>
<li>Update <code>typing_extensions.Format</code>,
<code>typing_extensions.evaluate_forward_ref</code>, and
<code>typing_extensions.TypedDict</code> to align
with changes in Python 3.14. Patches by Jelle Zijlstra.</li>
<li>Fix tests for Python 3.14 and 3.15. Patches by Jelle Zijlstra.</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/python/typing_extensions/blob/main/CHANGELOG.md">typing-extensions's
changelog</a>.</em></p>
<blockquote>
<h1>Release 4.14.1 (July 4, 2025)</h1>
<ul>
<li>Fix usage of <code>typing_extensions.TypedDict</code> nested inside
other types
(e.g., <code>typing.Type[typing_extensions.TypedDict]</code>). This is
not allowed by the
type system but worked on older versions, so we maintain support.</li>
</ul>
<h1>Release 4.14.0 (June 2, 2025)</h1>
<p>Changes since 4.14.0rc1:</p>
<ul>
<li>Remove <code>__or__</code> and <code>__ror__</code> methods from
<code>typing_extensions.Sentinel</code>
on Python versions &lt;3.10. PEP 604 was introduced in Python 3.10, and
<code>typing_extensions</code> does not generally attempt to backport
PEP-604 methods
to prior versions.</li>
<li>Further update <code>typing_extensions.evaluate_forward_ref</code>
with changes in Python 3.14.</li>
</ul>
<h1>Release 4.14.0rc1 (May 24, 2025)</h1>
<ul>
<li>Drop support for Python 3.8 (including PyPy-3.8). Patch by <a
href="https://github.com/Viicos">Victorien Plot</a>.</li>
<li>Do not attempt to re-export names that have been removed from
<code>typing</code>,
anticipating the removal of <code>typing.no_type_check_decorator</code>
in Python 3.15.
Patch by Jelle Zijlstra.</li>
<li>Update <code>typing_extensions.Format</code>,
<code>typing_extensions.evaluate_forward_ref</code>, and
<code>typing_extensions.TypedDict</code> to align
with changes in Python 3.14. Patches by Jelle Zijlstra.</li>
<li>Fix tests for Python 3.14 and 3.15. Patches by Jelle Zijlstra.</li>
</ul>
<p>New features:</p>
<ul>
<li>Add support for inline typed dictionaries (<a
href="https://peps.python.org/pep-0764/">PEP 764</a>).
Patch by <a href="https://github.com/Viicos">Victorien Plot</a>.</li>
<li>Add <code>typing_extensions.Reader</code> and
<code>typing_extensions.Writer</code>. Patch by
Sebastian Rittau.</li>
<li>Add support for sentinels (<a
href="https://peps.python.org/pep-0661/">PEP 661</a>). Patch by
<a href="https://github.com/Viicos">Victorien Plot</a>.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/python/typing_extensions/commit/42027aba3558c9d9133a90bca17f6fecaecc48d8"><code>42027ab</code></a>
Prepare release 4.14.1 (<a
href="https://redirect.github.com/python/typing_extensions/issues/620">#620</a>)</li>
<li><a
href="https://github.com/python/typing_extensions/commit/59d2c20858ac527516ebad5a89c05af514dac94a"><code>59d2c20</code></a>
Fix off by one in pickle protocol tests (<a
href="https://redirect.github.com/python/typing_extensions/issues/618">#618</a>)</li>
<li><a
href="https://github.com/python/typing_extensions/commit/40e22ebb2ca5747eaa9405b152c43a294ac3af37"><code>40e22eb</code></a>
Do not use slots for <code>_TypedDictSpecialForm</code> (<a
href="https://redirect.github.com/python/typing_extensions/issues/616">#616</a>)</li>
<li><a
href="https://github.com/python/typing_extensions/commit/d17c456d367e88adee4a4e3bef48f81f7e2df473"><code>d17c456</code></a>
allow TypedDict as a type argument (<a
href="https://redirect.github.com/python/typing_extensions/issues/614">#614</a>)</li>
<li><a
href="https://github.com/python/typing_extensions/commit/b07d24525615ba9377e47aaf5a26650a2517b2c4"><code>b07d245</code></a>
Prepare release 4.14.0 (<a
href="https://redirect.github.com/python/typing_extensions/issues/612">#612</a>)</li>
<li><a
href="https://github.com/python/typing_extensions/commit/fcf5265b3040337db1cfd6b786648a8ed0aeb0bf"><code>fcf5265</code></a>
Backport evaluate_forward_ref() changes (<a
href="https://redirect.github.com/python/typing_extensions/issues/611">#611</a>)</li>
<li><a
href="https://github.com/python/typing_extensions/commit/fadc1edbcfd942074007875007870c1df6acd4d0"><code>fadc1ed</code></a>
Remove PEP-604 methods from <code>Sentinel</code> on Python &lt;3.10 (<a
href="https://redirect.github.com/python/typing_extensions/issues/605">#605</a>)</li>
<li><a
href="https://github.com/python/typing_extensions/commit/44de568f73a93f29e52c2fc2d5f149305a4a3bae"><code>44de568</code></a>
Add 3.14 to project classifiers and tox.ini (<a
href="https://redirect.github.com/python/typing_extensions/issues/604">#604</a>)</li>
<li><a
href="https://github.com/python/typing_extensions/commit/36cc47605804318bf40ee26d765de2070741c25c"><code>36cc476</code></a>
Prepare release 4.14.0rc1 (<a
href="https://redirect.github.com/python/typing_extensions/issues/603">#603</a>)</li>
<li><a
href="https://github.com/python/typing_extensions/commit/ec1876c65000ac86faade29552245178918a7a69"><code>ec1876c</code></a>
More fixes for 3.14 and 3.15 (<a
href="https://redirect.github.com/python/typing_extensions/issues/602">#602</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/python/typing_extensions/compare/4.13.2...4.14.1">compare
view</a></li>
</ul>
</details>
<br />


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You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
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and block automerging
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</details>

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 requirements.in  | 2 +-
 requirements.txt | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/requirements.in b/requirements.in
index a1e2243c553e..ba2339b1e966 100644
--- a/requirements.in
+++ b/requirements.in
@@ -4,7 +4,7 @@
 # 2) uv pip compile --generate-hashes --upgrade requirements.in -o requirements.txt
 
 # Unittest test adapter
-typing-extensions==4.13.2
+typing-extensions==4.14.1
 
 # Fallback env creator for debian
 microvenv
diff --git a/requirements.txt b/requirements.txt
index 3983d5414c54..92d813a57109 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -46,9 +46,9 @@ tomli==2.2.1 \
     --hash=sha256:ece47d672db52ac607a3d9599a9d48dcb2f2f735c6c2d1f34130085bb12b112a \
     --hash=sha256:f4039b9cbc3048b2416cc57ab3bda989a6fcf9b36cf8937f01a6e731b64f80d7
     # via -r requirements.in
-typing-extensions==4.13.2 \
-    --hash=sha256:a439e7c04b49fec3e5d3e2beaa21755cadbbdc391694e28ccdd36ca4a1408f8c \
-    --hash=sha256:e6c81219bd689f51865d9e372991c540bda33a0379d5573cddb9a3a23f7caaef
+typing-extensions==4.14.1 \
+    --hash=sha256:38b39f4aeeab64884ce9f74c94263ef78f3c22467c8724005483154c26648d36 \
+    --hash=sha256:d1e1e3b58374dc93031d6eda2420a48ea44a36c2b4766a4fdeb3710755731d76
     # via -r requirements.in
 zipp==3.21.0 \
     --hash=sha256:2c9958f6430a2040341a52eb608ed6dd93ef4392e02ffe219417c1b28b5dd1f4 \

From a57b431cf753d1bd5c97f5d0b025a4b7c3a28866 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Mon, 7 Jul 2025 12:46:59 -0700
Subject: [PATCH 012/178] Bump 2025.10 (#25246)

---
 package-lock.json | 4 ++--
 package.json      | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 8d500006eedb..bc35999e36a7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "python",
-    "version": "2025.9.0-dev",
+    "version": "2025.10.0",
     "lockfileVersion": 2,
     "requires": true,
     "packages": {
         "": {
             "name": "python",
-            "version": "2025.9.0-dev",
+            "version": "2025.10.0",
             "license": "MIT",
             "dependencies": {
                 "@iarna/toml": "^2.2.5",
diff --git a/package.json b/package.json
index 6d76ded9febc..c9bed4e4b520 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
     "name": "python",
     "displayName": "Python",
     "description": "Python language support with extension access points for IntelliSense (Pylance), Debugging (Python Debugger), linting, formatting, refactoring, unit tests, and more.",
-    "version": "2025.9.0-dev",
+    "version": "2025.10.0",
     "featureFlags": {
         "usingNewInterpreterStorage": true
     },

From 3fdb1b015bc93e0b0abe7bab4f52f012e25edb3c Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Mon, 7 Jul 2025 13:01:26 -0700
Subject: [PATCH 013/178] Bump dev 2025.11 (#25247)

---
 package-lock.json | 4 ++--
 package.json      | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index bc35999e36a7..a5805f351472 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "python",
-    "version": "2025.10.0",
+    "version": "2025.11.0-dev",
     "lockfileVersion": 2,
     "requires": true,
     "packages": {
         "": {
             "name": "python",
-            "version": "2025.10.0",
+            "version": "2025.11.0-dev",
             "license": "MIT",
             "dependencies": {
                 "@iarna/toml": "^2.2.5",
diff --git a/package.json b/package.json
index c9bed4e4b520..a8a94ada4027 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
     "name": "python",
     "displayName": "Python",
     "description": "Python language support with extension access points for IntelliSense (Pylance), Debugging (Python Debugger), linting, formatting, refactoring, unit tests, and more.",
-    "version": "2025.10.0",
+    "version": "2025.11.0-dev",
     "featureFlags": {
         "usingNewInterpreterStorage": true
     },

From 3a996cc45c57299d829181e7310ed75b0990fb22 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Mon, 7 Jul 2025 14:27:44 -0700
Subject: [PATCH 014/178] update release plan to remove -rc step (#25248)

---
 .github/release_plan.md | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/.github/release_plan.md b/.github/release_plan.md
index bc9e623bc774..091ed559825b 100644
--- a/.github/release_plan.md
+++ b/.github/release_plan.md
@@ -40,7 +40,7 @@ NOTE: the number of this release is in the issue title and can be substituted in
 -   [ ] Update `pet`:
     -  [ ] Go to the [pet](https://github.com/microsoft/python-environment-tools) repo and check `main` and latest `release/*` branch. If there are new changes in `main` then create a branch called `release/YYYY.minor` (matching python extension release `major.minor`).
     -  [ ] Update `build\azure-pipeline.stable.yml` to point to the latest `release/YYYY.minor` for `python-environment-tools`.
--   [ ] Change the version in `package.json` to the next **even** number and switch the `-dev` to `-rc`. (🤖)
+-   [ ] Change the version in `package.json` to the next **even** number. (🤖)
 -   [ ] Run `npm install` to make sure `package-lock.json` is up-to-date _(you should now see changes to the `package.json` and `package-lock.json` at this point which update the version number **only**)_. (🤖)
 -   [ ] Update `ThirdPartyNotices-Repository.txt` as appropriate. You can check by looking at the [commit history](https://github.com/microsoft/vscode-python/commits/main) and scrolling through to see if there's anything listed there which might have pulled in some code directly into the repository from somewhere else. If you are still unsure you can check with the team.
 -   [ ] Create a PR from your branch  **`bump-release-[YYYY.minor]`** to `main`. Add the `"no change-log"` tag to the PR so it does not show up on the release notes before merging it.
@@ -64,7 +64,7 @@ NOTE: If there are release branches that are two versions old you can delete the
 ### Step 4: Return `main` to dev and unfreeze (❄️ ➡ 💧)
 NOTE: The purpose of this step is ensuring that main always is on a dev version number for every night's 🌃 pre-release. Therefore it is imperative that you do this directly after the previous steps to reset the version in main to a dev version **before** a pre-release goes out.
 -   [ ] Create a branch called **`bump-dev-version-YYYY.[minor+1]`**.
--   [ ] Bump the minor version number in the `package.json` to the next `YYYY.[minor+1]` which will be an odd number, and switch the `-rc` to `-dev`.(🤖)
+-   [ ] Bump the minor version number in the `package.json` to the next `YYYY.[minor+1]` which will be an odd number, and add `-dev`.(🤖)
 -   [ ] Run `npm install` to make sure `package-lock.json` is up-to-date _(you should now see changes to the `package.json` and `package-lock.json` only relating to the new version number)_ . (🤖)
 -   [ ] Create a PR from this branch against `main` and merge it.
 
@@ -83,12 +83,6 @@ NOTE: this PR should make all CI relating to `main` be passing again (such as th
 ### Step 6: Take the release branch from a candidate to the finalized release
 -   [ ] Make sure the [appropriate pull requests](https://github.com/microsoft/vscode-docs/pulls) for the [documentation](https://code.visualstudio.com/docs/python/python-tutorial) -- including the [WOW](https://code.visualstudio.com/docs/languages/python) page -- are ready.
 -   [ ] Check to make sure any final updates to the **`release/YYYY.minor`** branch have been merged.
--   [ ] Create a branch against  **`release/YYYY.minor`** called **`finalized-release-[YYYY.minor]`**.
--   [ ] Update the version in `package.json` to remove the `-rc` (🤖) from the version.
--   [ ] Run `npm install` to make sure `package-lock.json` is up-to-date _(the only update should be the version number if `package-lock.json` has been kept up-to-date)_. (🤖)
--   [ ] Update `ThirdPartyNotices-Repository.txt` manually if necessary.
--   [ ] Create a PR from **`finalized-release-[YYYY.minor]`** against `release/YYYY.minor` and merge it.
-
 
 ### Step 7: Execute the Release
 -   [ ] Make sure CI is passing for **`release/YYYY.minor`** release branch (🤖).

From a8a2c19c950dcb737204664f2fe5542fcee6d3f3 Mon Sep 17 00:00:00 2001
From: Dhanika-Botejue <156615547+Dhanika-Botejue@users.noreply.github.com>
Date: Tue, 8 Jul 2025 14:38:10 -0400
Subject: [PATCH 015/178] docs: Fix grammar in macOS Python note in Quick Start
 (#25235)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Fixes minor grammar issue: `note: that the system` → `note: the system`
in README.md.

Co-authored-by: Dhanika Botejue <dhanikabotejue@gmail.com>
---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index b69de7351679..9fe3669ce6b0 100644
--- a/README.md
+++ b/README.md
@@ -27,7 +27,7 @@ If you encounter issues with any of the listed extensions, please file an issue
 
 ## Quick start
 
--   **Step 1.** [Install a supported version of Python on your system](https://code.visualstudio.com/docs/python/python-tutorial#_prerequisites) (note: that the system install of Python on macOS is not supported).
+-   **Step 1.** [Install a supported version of Python on your system](https://code.visualstudio.com/docs/python/python-tutorial#_prerequisites) (note: the system install of Python on macOS is not supported).
 -   **Step 2.** [Install the Python extension for Visual Studio Code](https://code.visualstudio.com/docs/editor/extension-gallery).
 -   **Step 3.** Open or create a Python file and start coding!
 

From af3cc219d25deab727c9f8a7aa4757bcbdcaf993 Mon Sep 17 00:00:00 2001
From: Karthik Nadig <kanadig@microsoft.com>
Date: Wed, 2 Jul 2025 09:09:53 -0700
Subject: [PATCH 016/178] Fix disable Python extension in untrusted workspaces
 (#10)

---
 package.json | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/package.json b/package.json
index a8a94ada4027..ce389b9236a9 100644
--- a/package.json
+++ b/package.json
@@ -8,8 +8,8 @@
     },
     "capabilities": {
         "untrustedWorkspaces": {
-            "supported": "limited",
-            "description": "Only Partial IntelliSense with Pylance is supported. Cannot execute Python with untrusted files."
+            "supported": false,
+            "description": "Python extension is not supported in untrusted workspaces. Use Pylance extension to explore."
         },
         "virtualWorkspaces": {
             "supported": "limited",

From 9d0aab54a5f14de5fc72a0400d976c787b2d77b3 Mon Sep 17 00:00:00 2001
From: Karthik Nadig <kanadig@microsoft.com>
Date: Wed, 2 Jul 2025 16:27:52 -0700
Subject: [PATCH 017/178] fix: display text when in untrusted mode (#12)

---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index ce389b9236a9..86146d63d503 100644
--- a/package.json
+++ b/package.json
@@ -9,7 +9,7 @@
     "capabilities": {
         "untrustedWorkspaces": {
             "supported": false,
-            "description": "Python extension is not supported in untrusted workspaces. Use Pylance extension to explore."
+            "description": "The Python extension is not available in untrusted workspaces. Use Pylance to get partial IntelliSense support for Python files."
         },
         "virtualWorkspaces": {
             "supported": "limited",

From 40f807ac5020d733f57717aee02fcd27a9cf58b1 Mon Sep 17 00:00:00 2001
From: Copilot <198982749+Copilot@users.noreply.github.com>
Date: Tue, 8 Jul 2025 20:38:10 +0000
Subject: [PATCH 018/178] Fix skip-issue-check to support short issue
 references (#123) (#25260)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Updates the PR issue check to recognize both full GitHub issue URLs and
short issue references in the format `#123`.

## Problem
Currently, the `skip-issue-check` workflow only accepts full GitHub
issue URLs like `https://github.com/microsoft/vscode-python/issues/123`
in PR descriptions. Contributors using the more common short format like
`#123` would need to add the `skip-issue-check` label to bypass the
check.

## Solution
Modified the GitHub Actions script in
`.github/workflows/pr-file-check.yml` to check for both formats:
- Full URLs: `https://github.com/microsoft/vscode-python/issues/123`
(existing behavior)
- Short references: `#123` (new behavior)

The check now passes if either format is found in the PR description.

## Changes
- Added regex pattern `/#\d+/` to match short issue references
- Updated condition to pass if either format is detected: `if
(!issueLink && !issueReference)`
- Maintains backward compatibility and existing `skip-issue-check` label
behavior

## Testing
Verified the updated logic handles all scenarios correctly:
- ✅ Full GitHub URLs (existing)
- ✅ Short format like `#123` (new)
- ✅ Both formats in same PR description
- ✅ Multiple short references
- ✅ Skip label behavior unchanged
- ❌ No issue references (correctly fails)
- ❌ Invalid formats like `#` without numbers (correctly fails)

Fixes #25259.

<!-- START COPILOT CODING AGENT TIPS -->
---

💬 Share your feedback on Copilot coding agent for the chance to win a
$200 gift card! Click
[here](https://survey.alchemer.com/s3/8343779/Copilot-Coding-agent) to
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---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: eleanorjboyd <26030610+eleanorjboyd@users.noreply.github.com>
---
 .github/workflows/pr-file-check.yml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/pr-file-check.yml b/.github/workflows/pr-file-check.yml
index 180ab16a74c3..688c48d865d8 100644
--- a/.github/workflows/pr-file-check.yml
+++ b/.github/workflows/pr-file-check.yml
@@ -51,7 +51,8 @@ jobs:
             if (!labels.includes('skip-issue-check')) {
               const prBody = context.payload.pull_request.body || '';
               const issueLink = prBody.match(/https:\/\/github\.com\/\S+\/issues\/\d+/);
-              if (!issueLink) {
+              const issueReference = prBody.match(/#\d+/);
+              if (!issueLink && !issueReference) {
                 core.setFailed('No associated issue found in the PR description.');
               }
             }

From dfa81d9c47858fd2a5e6f8e41e27078e78df3bda Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Tue, 8 Jul 2025 15:18:24 -0700
Subject: [PATCH 019/178] Bump importlib-metadata from 8.6.1 to 8.7.0 (#25017)

Bumps [importlib-metadata](https://github.com/python/importlib_metadata)
from 8.6.1 to 8.7.0.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/python/importlib_metadata/blob/main/NEWS.rst">importlib-metadata's
changelog</a>.</em></p>
<blockquote>
<h1>v8.7.0</h1>
<h2>Features</h2>
<ul>
<li><code>.metadata()</code> (and <code>Distribution.metadata</code>)
can now return <code>None</code> if the metadata directory exists but
not metadata file is present. (<a
href="https://redirect.github.com/python/importlib_metadata/issues/493">#493</a>)</li>
</ul>
<h2>Bugfixes</h2>
<ul>
<li>Raise consistent ValueError for invalid EntryPoint.value (<a
href="https://redirect.github.com/python/importlib_metadata/issues/518">#518</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/python/importlib_metadata/commit/708dff4f1ab89bdd126e3e8c56098d04282c5809"><code>708dff4</code></a>
Finalize</li>
<li><a
href="https://github.com/python/importlib_metadata/commit/b3065f03cc3395f46ed575e612e213f92a064879"><code>b3065f0</code></a>
Merge pull request <a
href="https://redirect.github.com/python/importlib_metadata/issues/519">#519</a>
from python/bugfix/493-metadata-missing</li>
<li><a
href="https://github.com/python/importlib_metadata/commit/e4351c226765f53a40316fa6aab50488aee8a90f"><code>e4351c2</code></a>
Add a new test capturing the new expectation.</li>
<li><a
href="https://github.com/python/importlib_metadata/commit/5a657051f7386de6f0560c200d78e941be2c8058"><code>5a65705</code></a>
Refactor the casting into a wrapper for brevity and to document its
purpose.</li>
<li><a
href="https://github.com/python/importlib_metadata/commit/0830c39b8a23e48024365120c0e97a6f7c36c5ec"><code>0830c39</code></a>
Add news fragment.</li>
<li><a
href="https://github.com/python/importlib_metadata/commit/22bb567692d8e7bd216f864a9d8dee1272ee8674"><code>22bb567</code></a>
Fix type errors where metadata could be None.</li>
<li><a
href="https://github.com/python/importlib_metadata/commit/57f31d77e18fef11dfadfd44775f253971c36920"><code>57f31d7</code></a>
Allow metadata to return None when there is no metadata present.</li>
<li><a
href="https://github.com/python/importlib_metadata/commit/b9c4be4253250ad604610db66204e5fa70fa2455"><code>b9c4be4</code></a>
Merge pull request <a
href="https://redirect.github.com/python/importlib_metadata/issues/518">#518</a>
from python/bugfix/488-bad-ep-value</li>
<li><a
href="https://github.com/python/importlib_metadata/commit/9f8af013635833cf3ac348413c9ac63b37caa3dd"><code>9f8af01</code></a>
Prefer a cached property, as the property is likely to be retrieved at
least ...</li>
<li><a
href="https://github.com/python/importlib_metadata/commit/f179e28888b2c6caf12baaf5449ff1cd82513dfe"><code>f179e28</code></a>
Also raise ValueError on construction if the value is invalid.</li>
<li>Additional commits viewable in <a
href="https://github.com/python/importlib_metadata/compare/v8.6.1...v8.7.0">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=importlib-metadata&package-manager=pip&previous-version=8.6.1&new-version=8.7.0)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

You can trigger a rebase of this PR by commenting `@dependabot rebase`.

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<summary>Dependabot commands and options</summary>
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You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
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> **Note**
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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
---
 requirements.txt | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/requirements.txt b/requirements.txt
index 92d813a57109..e3563501e309 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,8 +1,8 @@
 # This file was autogenerated by uv via the following command:
 #    uv pip compile --generate-hashes requirements.in -o requirements.txt
-importlib-metadata==8.6.1 \
-    --hash=sha256:02a89390c1e15fdfdc0d7c6b25cb3e62650d0494005c97d6f148bf5b9787525e \
-    --hash=sha256:310b41d755445d74569f993ccfc22838295d9fe005425094fad953d7f15c8580
+importlib-metadata==8.7.0 \
+    --hash=sha256:d13b81ad223b890aa16c5471f2ac3056cf76c5f10f82d6f9292f0b415f389000 \
+    --hash=sha256:e5dd1551894c77868a30651cef00984d50e1002d06942a7101d34870c5f02afd
     # via -r requirements.in
 microvenv==2023.5.post1 \
     --hash=sha256:32c46afea874e300f69f1add0806eb0795fd02b5fb251092fba0b73c059a7d1f \

From 500cec5868c0fd012b2ee1d931d80ac466fdf60a Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Tue, 8 Jul 2025 15:19:24 -0700
Subject: [PATCH 020/178] Bump mheap/github-action-required-labels from 5.5.0
 to 5.5.1 (#25202)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps
[mheap/github-action-required-labels](https://github.com/mheap/github-action-required-labels)
from 5.5.0 to 5.5.1.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/mheap/github-action-required-labels/releases">mheap/github-action-required-labels's
releases</a>.</em></p>
<blockquote>
<h2>v5.5.1</h2>
<h2>What's Changed</h2>
<ul>
<li>fix: Ensure all label pages are traversed and remove per_page from
API and tests by <a
href="https://github.com/markscamilleri"><code>@​markscamilleri</code></a>
in <a
href="https://redirect.github.com/mheap/github-action-required-labels/pull/91">mheap/github-action-required-labels#91</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a
href="https://github.com/markscamilleri"><code>@​markscamilleri</code></a>
made their first contribution in <a
href="https://redirect.github.com/mheap/github-action-required-labels/pull/91">mheap/github-action-required-labels#91</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/mheap/github-action-required-labels/compare/v5.5.0...v5.5.1">https://github.com/mheap/github-action-required-labels/compare/v5.5.0...v5.5.1</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/mheap/github-action-required-labels/commit/8afbe8ae6ab7647d0c9f0cfa7c2f939650d22509"><code>8afbe8a</code></a>
Automatic compilation</li>
<li><a
href="https://github.com/mheap/github-action-required-labels/commit/8eb7f59f448fc05be804f69408309c6f67ced71f"><code>8eb7f59</code></a>
fix: Ensure all label pages are traversed and remove per_page from API
and te...</li>
<li>See full diff in <a
href="https://github.com/mheap/github-action-required-labels/compare/388fd6af37b34cdfe5a23b37060e763217e58b03...8afbe8ae6ab7647d0c9f0cfa7c2f939650d22509">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=mheap/github-action-required-labels&package-manager=github_actions&previous-version=5.5.0&new-version=5.5.1)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
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<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 .github/workflows/pr-labels.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/pr-labels.yml b/.github/workflows/pr-labels.yml
index 3b82068de5aa..04f87a6d49ba 100644
--- a/.github/workflows/pr-labels.yml
+++ b/.github/workflows/pr-labels.yml
@@ -17,7 +17,7 @@ jobs:
       pull-requests: write
     steps:
       - name: 'PR impact specified'
-        uses: mheap/github-action-required-labels@388fd6af37b34cdfe5a23b37060e763217e58b03 # v5.5.0
+        uses: mheap/github-action-required-labels@8afbe8ae6ab7647d0c9f0cfa7c2f939650d22509 # v5.5.1
         with:
           mode: exactly
           count: 1

From c7fd90a631433e66bb44230f5ba8636dae928950 Mon Sep 17 00:00:00 2001
From: igorgaming <69463610+igorgaming@users.noreply.github.com>
Date: Wed, 9 Jul 2025 02:16:59 +0300
Subject: [PATCH 021/178] Add __file__ variable to globals in exec() (#25225)

Closes #25056
---
 python_files/unittestadapter/django_handler.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/python_files/unittestadapter/django_handler.py b/python_files/unittestadapter/django_handler.py
index 77c50efc27d0..574aee7af7fa 100644
--- a/python_files/unittestadapter/django_handler.py
+++ b/python_files/unittestadapter/django_handler.py
@@ -104,7 +104,7 @@ def django_execution_runner(manage_py_path: str, test_ids: List[str], args: List
             manage_file = manage_path.open()
             with argv_context, suppress_context, manage_file:
                 manage_code = manage_file.read()
-                exec(manage_code, {"__name__": "__main__"})
+                exec(manage_code, {"__name__": "__main__", "__file__": manage_path})
         except OSError as e:
             raise VSCodeUnittestError("Error running Django, unable to read manage.py") from e
     except Exception as e:

From 58bd7b6290d6456e9107e2ed4b69b9d8051b7b9d Mon Sep 17 00:00:00 2001
From: Copilot <198982749+Copilot@users.noreply.github.com>
Date: Wed, 9 Jul 2025 08:16:27 -0700
Subject: [PATCH 022/178] Fix auto test discovery to respect setting changes
 without reload (#25261)

Modified the event handler to check both the setting and the pattern
before triggering test discovery:

This ensures that when users disable the setting, test discovery
immediately stops running on file saves without requiring a VS Code
reload.

Fixes #24117.

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: eleanorjboyd <26030610+eleanorjboyd@users.noreply.github.com>
---
 src/client/testing/testController/controller.ts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/client/testing/testController/controller.ts b/src/client/testing/testController/controller.ts
index fe384709c371..aefc97117da5 100644
--- a/src/client/testing/testController/controller.ts
+++ b/src/client/testing/testController/controller.ts
@@ -549,7 +549,10 @@ export class PythonTestController implements ITestController, IExtensionSingleAc
         this.disposables.push(
             onDidSaveTextDocument(async (doc: TextDocument) => {
                 const settings = this.configSettings.getSettings(doc.uri);
-                if (minimatch.default(doc.uri.fsPath, settings.testing.autoTestDiscoverOnSavePattern)) {
+                if (
+                    settings.testing.autoTestDiscoverOnSaveEnabled &&
+                    minimatch.default(doc.uri.fsPath, settings.testing.autoTestDiscoverOnSavePattern)
+                ) {
                     traceVerbose(`Testing: Trigger refresh after saving ${doc.uri.fsPath}`);
                     this.sendTriggerTelemetry('watching');
                     this.refreshData.trigger(doc.uri, false);

From bad502a09650b1382af4dc23191a3d1ba9fbf2b1 Mon Sep 17 00:00:00 2001
From: tgrue-openai <165065431+tgrue-openai@users.noreply.github.com>
Date: Wed, 9 Jul 2025 09:37:48 -0700
Subject: [PATCH 023/178] Allow Activated Virtual Envs to Be Detected w/ a
 Workspace File (#25141)

Addresses https://github.com/microsoft/vscode-python/issues/25140 (which
I just filed).

1) Removed the check that a workspaceFile isn't used when looking for
Activate Virtual Envs
2) Adds a debug log to help make other forms of early exit.

Of note, I'm not sure if the existing `traceVerbose('VS Code was not
launched from the command line');` is correct.

As far as I can tell, workspaceFile != multiroot workspaces. I'm not
sure why this check previously existed. I don't know if this might cause
others problems; but right now this check causes a lot of challenge for
our workflow.

---------

Co-authored-by: Anthony Kim <62267334+anthonykim1@users.noreply.github.com>
---
 .../virtualEnvs/activatedEnvLaunch.ts         |  5 +--
 .../activatedEnvLaunch.unit.test.ts           | 31 -------------------
 2 files changed, 1 insertion(+), 35 deletions(-)

diff --git a/src/client/interpreter/virtualEnvs/activatedEnvLaunch.ts b/src/client/interpreter/virtualEnvs/activatedEnvLaunch.ts
index 21bcc12b0d06..6b4334e13100 100644
--- a/src/client/interpreter/virtualEnvs/activatedEnvLaunch.ts
+++ b/src/client/interpreter/virtualEnvs/activatedEnvLaunch.ts
@@ -85,12 +85,9 @@ export class ActivatedEnvironmentLaunch implements IActivatedEnvironmentLaunch {
 
     @cache(-1, true)
     private async _selectIfLaunchedViaActivatedEnv(doNotBlockOnSelection = false): Promise<string | undefined> {
-        if (this.workspaceService.workspaceFile) {
-            // Assuming multiroot workspaces cannot be directly launched via `code .` command.
-            return undefined;
-        }
         if (process.env.VSCODE_CLI !== '1') {
             // We only want to select the interpreter if VS Code was launched from the command line.
+            traceLog("Skipping ActivatedEnv Detection:  process.env.VSCODE_CLI !== '1'");
             return undefined;
         }
         traceVerbose('VS Code was not launched from the command line');
diff --git a/src/test/interpreters/virtualEnvs/activatedEnvLaunch.unit.test.ts b/src/test/interpreters/virtualEnvs/activatedEnvLaunch.unit.test.ts
index 2ebdecd000d1..860970bd641e 100644
--- a/src/test/interpreters/virtualEnvs/activatedEnvLaunch.unit.test.ts
+++ b/src/test/interpreters/virtualEnvs/activatedEnvLaunch.unit.test.ts
@@ -263,37 +263,6 @@ suite('Activated Env Launch', async () => {
             expect(_promptIfApplicable.notCalled).to.equal(true, 'Prompt should not be displayed');
         });
 
-        test('Does not update interpreter path if a multiroot workspace is opened', async () => {
-            process.env.VIRTUAL_ENV = virtualEnvPrefix;
-            interpreterService
-                .setup((i) => i.getInterpreterDetails(TypeMoq.It.isAny()))
-                .returns(() => Promise.resolve(({ envName: 'base' } as unknown) as PythonEnvironment));
-            workspaceService.setup((w) => w.workspaceFile).returns(() => uri);
-            const workspaceFolder: WorkspaceFolder = { name: 'one', uri, index: 0 };
-            workspaceService.setup((w) => w.workspaceFolders).returns(() => [workspaceFolder]);
-            pythonPathUpdaterService
-                .setup((p) =>
-                    p.updatePythonPath(
-                        TypeMoq.It.isValue(virtualEnvPrefix),
-                        TypeMoq.It.isValue(ConfigurationTarget.WorkspaceFolder),
-                        TypeMoq.It.isValue('load'),
-                        TypeMoq.It.isValue(uri),
-                    ),
-                )
-                .returns(() => Promise.resolve())
-                .verifiable(TypeMoq.Times.never());
-            activatedEnvLaunch = new ActivatedEnvironmentLaunch(
-                workspaceService.object,
-                appShell.object,
-                pythonPathUpdaterService.object,
-                interpreterService.object,
-                processServiceFactory.object,
-            );
-            const result = await activatedEnvLaunch.selectIfLaunchedViaActivatedEnv();
-            expect(result).to.be.equal(undefined, 'Incorrect value');
-            pythonPathUpdaterService.verifyAll();
-        });
-
         test('Returns `undefined` if env was already selected', async () => {
             activatedEnvLaunch = new ActivatedEnvironmentLaunch(
                 workspaceService.object,

From 7607548b178484a45c86d038748f9109f70ad47c Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Wed, 9 Jul 2025 13:54:00 -0700
Subject: [PATCH 024/178] support copy testing path (#25257)

fixes https://github.com/microsoft/vscode-python/issues/20047
---
 package.json                              | 18 ++++++++
 package.nls.json                          |  1 +
 src/client/common/application/commands.ts |  3 +-
 src/client/common/constants.ts            |  1 +
 src/client/testing/main.ts                | 16 ++++++-
 src/client/testing/utils.ts               | 49 ++++++++++++++++++++++
 src/test/testing/utils.unit.test.ts       | 51 +++++++++++++++++++++++
 7 files changed, 136 insertions(+), 3 deletions(-)
 create mode 100644 src/client/testing/utils.ts
 create mode 100644 src/test/testing/utils.unit.test.ts

diff --git a/package.json b/package.json
index 86146d63d503..b407c68caa35 100644
--- a/package.json
+++ b/package.json
@@ -272,6 +272,11 @@
                 "category": "Python",
                 "command": "python.createNewFile"
             },
+            {
+                "category": "Python",
+                "command": "python.copyTestId",
+                "title": "%python.command.python.testing.copyTestId.title%"
+            },
             {
                 "category": "Python",
                 "command": "python.analysis.restartLanguageServer",
@@ -1231,6 +1236,13 @@
                     "command": "python.reportIssue"
                 }
             ],
+            "testing/item/context": [
+                {
+                    "command": "python.copyTestId",
+                    "group": "navigation",
+                    "when": "controllerId == 'python-tests'"
+                }
+            ],
             "commandPalette": [
                 {
                     "category": "Python",
@@ -1306,6 +1318,12 @@
                     "title": "%python.command.python.execSelectionInTerminal.title%",
                     "when": "!virtualWorkspace && shellExecutionSupported && editorLangId == python"
                 },
+                {
+                    "category": "Python",
+                    "command": "python.copyTestId",
+                    "title": "%python.command.python.testing.copyTestId.title%",
+                    "when": "false"
+                },
                 {
                     "category": "Python",
                     "command": "python.execInREPL",
diff --git a/package.nls.json b/package.nls.json
index 00c96c09b19a..37a9ce435f2f 100644
--- a/package.nls.json
+++ b/package.nls.json
@@ -27,6 +27,7 @@
     "python.command.python.analysis.restartLanguageServer.title": "Restart Language Server",
     "python.command.python.launchTensorBoard.title": "Launch TensorBoard",
     "python.command.python.refreshTensorBoard.title": "Refresh TensorBoard",
+    "python.command.python.testing.copyTestId.title": "Copy Test Id",
     "python.createEnvironment.contentButton.description": "Show or hide Create Environment button in the editor for `requirements.txt` or other dependency files.",
     "python.createEnvironment.trigger.description": "Detect if environment creation is required for the current project",
     "python.menu.createNewFile.title": "Python File",
diff --git a/src/client/common/application/commands.ts b/src/client/common/application/commands.ts
index 98ea2669d773..402025ee38db 100644
--- a/src/client/common/application/commands.ts
+++ b/src/client/common/application/commands.ts
@@ -3,7 +3,7 @@
 
 'use strict';
 
-import { CancellationToken, Position, TextDocument, Uri } from 'vscode';
+import { CancellationToken, Position, TestItem, TextDocument, Uri } from 'vscode';
 import { Commands as LSCommands } from '../../activation/commands';
 import { Channel, Commands, CommandSource } from '../constants';
 import { CreateEnvironmentOptions } from '../../pythonEnvironments/creation/proposed.createEnvApis';
@@ -50,6 +50,7 @@ export type AllCommands = keyof ICommandNameArgumentTypeMapping;
  * Used to provide strong typing for command & args.
  */
 export interface ICommandNameArgumentTypeMapping extends ICommandNameWithoutArgumentTypeMapping {
+    [Commands.CopyTestId]: [TestItem];
     [Commands.Create_Environment]: [CreateEnvironmentOptions];
     ['vscode.openWith']: [Uri, string];
     ['workbench.action.quickOpen']: [string];
diff --git a/src/client/common/constants.ts b/src/client/common/constants.ts
index 4a8962e86b58..15fd037a3d9f 100644
--- a/src/client/common/constants.ts
+++ b/src/client/common/constants.ts
@@ -39,6 +39,7 @@ export namespace Commands {
     export const CreateNewFile = 'python.createNewFile';
     export const ClearWorkspaceInterpreter = 'python.clearWorkspaceInterpreter';
     export const Create_Environment = 'python.createEnvironment';
+    export const CopyTestId = 'python.copyTestId';
     export const Create_Environment_Button = 'python.createEnvironment-button';
     export const Create_Environment_Check = 'python.createEnvironmentCheck';
     export const Create_Terminal = 'python.createTerminal';
diff --git a/src/client/testing/main.ts b/src/client/testing/main.ts
index c2675ed4a72b..1941ce5e57c2 100644
--- a/src/client/testing/main.ts
+++ b/src/client/testing/main.ts
@@ -1,7 +1,16 @@
 'use strict';
 
 import { inject, injectable } from 'inversify';
-import { ConfigurationChangeEvent, Disposable, Uri, tests, TestResultState, WorkspaceFolder, Command } from 'vscode';
+import {
+    ConfigurationChangeEvent,
+    Disposable,
+    Uri,
+    tests,
+    TestResultState,
+    WorkspaceFolder,
+    Command,
+    TestItem,
+} from 'vscode';
 import { IApplicationShell, ICommandManager, IContextKeyManager, IWorkspaceService } from '../common/application/types';
 import * as constants from '../common/constants';
 import '../common/extensions';
@@ -21,6 +30,7 @@ import { ExtensionContextKey } from '../common/application/contextKeys';
 import { checkForFailedTests, updateTestResultMap } from './testController/common/testItemUtilities';
 import { Testing } from '../common/utils/localize';
 import { traceVerbose } from '../logging';
+import { writeTestIdToClipboard } from './utils';
 
 @injectable()
 export class TestingService implements ITestingService {
@@ -158,7 +168,6 @@ export class UnitTestManagementService implements IExtensionActivationService {
 
     private registerCommands(): void {
         const commandManager = this.serviceContainer.get<ICommandManager>(ICommandManager);
-
         this.disposableRegistry.push(
             commandManager.registerCommand(
                 constants.Commands.Tests_Configure,
@@ -195,6 +204,9 @@ export class UnitTestManagementService implements IExtensionActivationService {
                     },
                 };
             }),
+            commandManager.registerCommand(constants.Commands.CopyTestId, async (testItem: TestItem) => {
+                writeTestIdToClipboard(testItem);
+            }),
         );
     }
 
diff --git a/src/client/testing/utils.ts b/src/client/testing/utils.ts
new file mode 100644
index 000000000000..c1027d4a8dc1
--- /dev/null
+++ b/src/client/testing/utils.ts
@@ -0,0 +1,49 @@
+import { TestItem, env } from 'vscode';
+import { traceLog } from '../logging';
+
+export async function writeTestIdToClipboard(testItem: TestItem): Promise<void> {
+    if (testItem && typeof testItem.id === 'string') {
+        if (testItem.id.includes('\\') && testItem.id.indexOf('::') === -1) {
+            // Convert the id to a module.class.method format as this is a unittest
+            const moduleClassMethod = idToModuleClassMethod(testItem.id);
+            if (moduleClassMethod) {
+                await env.clipboard.writeText(moduleClassMethod);
+                traceLog('Testing: Copied test id to clipboard, id: ' + moduleClassMethod);
+                return;
+            }
+        }
+        // Otherwise use the id as is for pytest
+        await clipboardWriteText(testItem.id);
+        traceLog('Testing: Copied test id to clipboard, id: ' + testItem.id);
+    }
+}
+
+export function idToModuleClassMethod(id: string): string | undefined {
+    // Split by backslash
+    const parts = id.split('\\');
+    if (parts.length === 1) {
+        // Only one part, likely a parent folder or file
+        return parts[0];
+    }
+    if (parts.length === 2) {
+        // Two parts: filePath and className
+        const [filePath, className] = parts.slice(-2);
+        const fileName = filePath.split(/[\\/]/).pop();
+        if (!fileName) {
+            return undefined;
+        }
+        const module = fileName.replace(/\.py$/, '');
+        return `${module}.${className}`;
+    }
+    // Three or more parts: filePath, className, methodName
+    const [filePath, className, methodName] = parts.slice(-3);
+    const fileName = filePath.split(/[\\/]/).pop();
+    if (!fileName) {
+        return undefined;
+    }
+    const module = fileName.replace(/\.py$/, '');
+    return `${module}.${className}.${methodName}`;
+}
+export function clipboardWriteText(text: string): Thenable<void> {
+    return env.clipboard.writeText(text);
+}
diff --git a/src/test/testing/utils.unit.test.ts b/src/test/testing/utils.unit.test.ts
new file mode 100644
index 000000000000..8efa0cee0e65
--- /dev/null
+++ b/src/test/testing/utils.unit.test.ts
@@ -0,0 +1,51 @@
+import { expect, use } from 'chai';
+import * as chaiAsPromised from 'chai-as-promised';
+import * as utils from '../../client/testing/utils';
+import sinon from 'sinon';
+use(chaiAsPromised.default);
+
+function test_idToModuleClassMethod() {
+    try {
+        expect(utils.idToModuleClassMethod('foo')).to.equal('foo');
+        expect(utils.idToModuleClassMethod('a/b/c.pyMyClass')).to.equal('c.MyClass');
+        expect(utils.idToModuleClassMethod('a/b/c.pyMyClassmy_method')).to.equal('c.MyClass.my_method');
+        expect(utils.idToModuleClassMethod('\\MyClass')).to.be.undefined;
+        console.log('test_idToModuleClassMethod passed');
+    } catch (e) {
+        console.error('test_idToModuleClassMethod failed:', e);
+    }
+}
+
+async function test_writeTestIdToClipboard() {
+    let clipboardStub = sinon.stub(utils, 'clipboardWriteText').resolves();
+    const { writeTestIdToClipboard } = utils;
+    try {
+        // unittest id
+        const testItem = { id: 'a/b/c.pyMyClass\\my_method' };
+        await writeTestIdToClipboard(testItem as any);
+        sinon.assert.calledOnceWithExactly(clipboardStub, 'c.MyClass.my_method');
+        clipboardStub.resetHistory();
+
+        // pytest id
+        const testItem2 = { id: 'tests/test_foo.py::TestClass::test_method' };
+        await writeTestIdToClipboard(testItem2 as any);
+        sinon.assert.calledOnceWithExactly(clipboardStub, 'tests/test_foo.py::TestClass::test_method');
+        clipboardStub.resetHistory();
+
+        // undefined
+        await writeTestIdToClipboard(undefined as any);
+        sinon.assert.notCalled(clipboardStub);
+
+        console.log('test_writeTestIdToClipboard passed');
+    } catch (e) {
+        console.error('test_writeTestIdToClipboard failed:', e);
+    } finally {
+        sinon.restore();
+    }
+}
+
+// Run tests
+(async () => {
+    test_idToModuleClassMethod();
+    await test_writeTestIdToClipboard();
+})();

From 1f8949c0df7aadd90de85e09066037c679bb716e Mon Sep 17 00:00:00 2001
From: Aaron Munger <2019016+amunger@users.noreply.github.com>
Date: Thu, 10 Jul 2025 08:25:12 -0700
Subject: [PATCH 025/178] Only select the python REPL kernel when
 creating/restoring the REPL (#25263)

fix https://github.com/microsoft/vscode-python/issues/23971
---
 src/client/repl/nativeRepl.ts         | 31 ++++++++-------------------
 src/client/repl/replCommandHandler.ts | 26 +++++++++-------------
 src/client/repl/replCommands.ts       |  6 ++----
 3 files changed, 21 insertions(+), 42 deletions(-)

diff --git a/src/client/repl/nativeRepl.ts b/src/client/repl/nativeRepl.ts
index 9b002655d714..62e314172da6 100644
--- a/src/client/repl/nativeRepl.ts
+++ b/src/client/repl/nativeRepl.ts
@@ -3,15 +3,7 @@
 
 // Native Repl class that holds instance of pythonServer and replController
 
-import {
-    NotebookController,
-    NotebookControllerAffinity,
-    NotebookDocument,
-    QuickPickItem,
-    TextEditor,
-    Uri,
-    WorkspaceFolder,
-} from 'vscode';
+import { NotebookController, NotebookDocument, QuickPickItem, TextEditor, Uri, WorkspaceFolder } from 'vscode';
 import { Disposable } from 'vscode-jsonrpc';
 import { PVSC_EXTENSION_ID } from '../common/constants';
 import { showQuickPick } from '../common/vscodeApis/windowApis';
@@ -172,24 +164,19 @@ export class NativeRepl implements Disposable {
             }
         }
 
-        const notebookEditor = await openInteractiveREPL(
-            this.replController,
-            this.notebookDocument ?? wsMementoUri,
-            preserveFocus,
-        );
-        if (notebookEditor) {
-            this.notebookDocument = notebookEditor.notebook;
+        const result = await openInteractiveREPL(this.notebookDocument ?? wsMementoUri, preserveFocus);
+        if (result) {
+            this.notebookDocument = result.notebookEditor.notebook;
             await updateWorkspaceStateValue<string | undefined>(
                 NATIVE_REPL_URI_MEMENTO,
                 this.notebookDocument.uri.toString(),
             );
 
-            if (this.notebookDocument) {
-                this.replController.updateNotebookAffinity(this.notebookDocument, NotebookControllerAffinity.Default);
-                await selectNotebookKernel(notebookEditor, this.replController.id, PVSC_EXTENSION_ID);
-                if (code) {
-                    await executeNotebookCell(notebookEditor, code);
-                }
+            if (result.documentCreated) {
+                await selectNotebookKernel(result.notebookEditor, this.replController.id, PVSC_EXTENSION_ID);
+            }
+            if (code) {
+                await executeNotebookCell(result.notebookEditor, code);
             }
         }
     }
diff --git a/src/client/repl/replCommandHandler.ts b/src/client/repl/replCommandHandler.ts
index f65580dd1e17..630eddfdd565 100644
--- a/src/client/repl/replCommandHandler.ts
+++ b/src/client/repl/replCommandHandler.ts
@@ -1,5 +1,4 @@
 import {
-    NotebookController,
     NotebookEditor,
     ViewColumn,
     NotebookDocument,
@@ -10,7 +9,6 @@ import {
     Uri,
 } from 'vscode';
 import { getExistingReplViewColumn, getTabNameForUri } from './replUtils';
-import { PVSC_EXTENSION_ID } from '../common/constants';
 import { showNotebookDocument } from '../common/vscodeApis/windowApis';
 import { openNotebookDocument, applyEdit } from '../common/vscodeApis/workspaceApis';
 import { executeCommand } from '../common/vscodeApis/commandApis';
@@ -19,11 +17,11 @@ import { executeCommand } from '../common/vscodeApis/commandApis';
  * Function that opens/show REPL using IW UI.
  */
 export async function openInteractiveREPL(
-    notebookController: NotebookController,
     notebookDocument: NotebookDocument | Uri | undefined,
     preserveFocus: boolean = true,
-): Promise<NotebookEditor | undefined> {
+): Promise<{ notebookEditor: NotebookEditor; documentCreated: boolean } | undefined> {
     let viewColumn = ViewColumn.Beside;
+    let alreadyExists = false;
     if (notebookDocument instanceof Uri) {
         // Case where NotebookDocument is undefined, but workspace mementoURI exists.
         notebookDocument = await openNotebookDocument(notebookDocument);
@@ -31,12 +29,14 @@ export async function openInteractiveREPL(
         // Case where NotebookDocument (REPL document already exists in the tab)
         const existingReplViewColumn = getExistingReplViewColumn(notebookDocument);
         viewColumn = existingReplViewColumn ?? viewColumn;
+        alreadyExists = true;
     } else if (!notebookDocument) {
         // Case where NotebookDocument doesnt exist, or
         // became outdated (untitled.ipynb created without Python extension knowing, effectively taking over original Python REPL's URI)
         notebookDocument = await openNotebookDocument('jupyter-notebook');
     }
-    const editor = await showNotebookDocument(notebookDocument!, {
+
+    const notebookEditor = await showNotebookDocument(notebookDocument!, {
         viewColumn,
         asRepl: 'Python REPL',
         preserveFocus,
@@ -44,21 +44,15 @@ export async function openInteractiveREPL(
 
     // Sanity check that we opened a Native REPL from showNotebookDocument.
     if (
-        !editor ||
-        !editor.notebook ||
-        !editor.notebook.uri ||
-        getTabNameForUri(editor.notebook.uri) !== 'Python REPL'
+        !notebookEditor ||
+        !notebookEditor.notebook ||
+        !notebookEditor.notebook.uri ||
+        getTabNameForUri(notebookEditor.notebook.uri) !== 'Python REPL'
     ) {
         return undefined;
     }
 
-    await executeCommand('notebook.selectKernel', {
-        editor,
-        id: notebookController.id,
-        extension: PVSC_EXTENSION_ID,
-    });
-
-    return editor;
+    return { notebookEditor, documentCreated: !alreadyExists };
 }
 
 /**
diff --git a/src/client/repl/replCommands.ts b/src/client/repl/replCommands.ts
index f260185988a8..993a0cc91b19 100644
--- a/src/client/repl/replCommands.ts
+++ b/src/client/repl/replCommands.ts
@@ -31,10 +31,8 @@ export async function registerStartNativeReplCommand(
             sendTelemetryEvent(EventName.REPL, undefined, { replType: 'Native' });
             const interpreter = await getActiveInterpreter(uri, interpreterService);
             if (interpreter) {
-                if (interpreter) {
-                    const nativeRepl = await getNativeRepl(interpreter, disposables);
-                    await nativeRepl.sendToNativeRepl(undefined, false);
-                }
+                const nativeRepl = await getNativeRepl(interpreter, disposables);
+                await nativeRepl.sendToNativeRepl(undefined, false);
             }
         }),
     );

From 8810766af38b7a78cc8853e442de7609d46b8732 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Thu, 10 Jul 2025 08:52:44 -0700
Subject: [PATCH 026/178] remove stale code for displaying config error
 (#25269)

Two parts:
- removes notification on run without configuration, this was meant to
be removed as stated in the TODO comment
- removes unused function `displayTestFrameworkError` & tests related to
it
---
 src/client/common/utils/localize.ts         |   1 -
 src/client/testing/common/types.ts          |   1 -
 src/client/testing/configuration/index.ts   |  22 ---
 src/client/testing/main.ts                  |  19 +-
 src/test/testing/configuration.unit.test.ts | 194 +-------------------
 5 files changed, 4 insertions(+), 233 deletions(-)

diff --git a/src/client/common/utils/localize.ts b/src/client/common/utils/localize.ts
index 97fe6201e4fb..067275ad732c 100644
--- a/src/client/common/utils/localize.ts
+++ b/src/client/common/utils/localize.ts
@@ -411,7 +411,6 @@ export namespace DebugConfigStrings {
 
 export namespace Testing {
     export const configureTests = l10n.t('Configure Test Framework');
-    export const testNotConfigured = l10n.t('No test framework configured.');
     export const cancelUnittestDiscovery = l10n.t('Canceled unittest test discovery');
     export const errorUnittestDiscovery = l10n.t('Unittest test discovery error');
     export const cancelPytestDiscovery = l10n.t('Canceled pytest test discovery');
diff --git a/src/client/testing/common/types.ts b/src/client/testing/common/types.ts
index 17d528d234f9..562005386633 100644
--- a/src/client/testing/common/types.ts
+++ b/src/client/testing/common/types.ts
@@ -50,7 +50,6 @@ export interface ITestsHelper {
 export const ITestConfigurationService = Symbol('ITestConfigurationService');
 export interface ITestConfigurationService {
     hasConfiguredTests(wkspace: Uri): boolean;
-    displayTestFrameworkError(wkspace: Uri): Promise<void>;
     selectTestRunner(placeHolderMessage: string): Promise<UnitTestProduct | undefined>;
     enableTest(wkspace: Uri, product: UnitTestProduct): Promise<void>;
     promptToEnableAndConfigureTestFramework(wkspace: Uri): Promise<void>;
diff --git a/src/client/testing/configuration/index.ts b/src/client/testing/configuration/index.ts
index 4825e9aa4f6a..b78475293594 100644
--- a/src/client/testing/configuration/index.ts
+++ b/src/client/testing/configuration/index.ts
@@ -40,28 +40,6 @@ export class UnitTestConfigurationService implements ITestConfigurationService {
         return settings.testing.pytestEnabled || settings.testing.unittestEnabled || false;
     }
 
-    public async displayTestFrameworkError(wkspace: Uri): Promise<void> {
-        const settings = this.configurationService.getSettings(wkspace);
-        let enabledCount = settings.testing.pytestEnabled ? 1 : 0;
-        enabledCount += settings.testing.unittestEnabled ? 1 : 0;
-        if (enabledCount > 1) {
-            return this._promptToEnableAndConfigureTestFramework(
-                wkspace,
-                'Enable only one of the test frameworks (unittest or pytest).',
-                true,
-            );
-        }
-        const option = 'Enable and configure a Test Framework';
-        const item = await this.appShell.showInformationMessage(
-            'No test framework configured (unittest, or pytest)',
-            option,
-        );
-        if (item !== option) {
-            throw NONE_SELECTED;
-        }
-        return this._promptToEnableAndConfigureTestFramework(wkspace);
-    }
-
     public async selectTestRunner(placeHolderMessage: string): Promise<UnitTestProduct | undefined> {
         const items = [
             {
diff --git a/src/client/testing/main.ts b/src/client/testing/main.ts
index 1941ce5e57c2..e794d5711f2a 100644
--- a/src/client/testing/main.ts
+++ b/src/client/testing/main.ts
@@ -29,7 +29,7 @@ import { DelayedTrigger, IDelayedTrigger } from '../common/utils/delayTrigger';
 import { ExtensionContextKey } from '../common/application/contextKeys';
 import { checkForFailedTests, updateTestResultMap } from './testController/common/testItemUtilities';
 import { Testing } from '../common/utils/localize';
-import { traceVerbose } from '../logging';
+import { traceVerbose, traceWarn } from '../logging';
 import { writeTestIdToClipboard } from './utils';
 
 @injectable()
@@ -103,22 +103,9 @@ export class UnitTestManagementService implements IExtensionActivationService {
                 if (unconfigured.length === workspaces.length) {
                     const commandManager = this.serviceContainer.get<ICommandManager>(ICommandManager);
                     await commandManager.executeCommand('workbench.view.testing.focus');
-
-                    // TODO: this is a workaround for https://github.com/microsoft/vscode/issues/130696
-                    // Once that is fixed delete this notification and test should be configured from the test view.
-                    const app = this.serviceContainer.get<IApplicationShell>(IApplicationShell);
-                    const response = await app.showInformationMessage(
-                        Testing.testNotConfigured,
-                        Testing.configureTests,
+                    traceWarn(
+                        'Testing: Run attempted but no test configurations found for any workspace, use command palette to configure tests for python if desired.',
                     );
-                    if (response === Testing.configureTests) {
-                        await commandManager.executeCommand(
-                            constants.Commands.Tests_Configure,
-                            undefined,
-                            constants.CommandSource.ui,
-                            unconfigured[0].uri,
-                        );
-                    }
                 }
             });
         }
diff --git a/src/test/testing/configuration.unit.test.ts b/src/test/testing/configuration.unit.test.ts
index 98d19dca9cbc..e259587ecccd 100644
--- a/src/test/testing/configuration.unit.test.ts
+++ b/src/test/testing/configuration.unit.test.ts
@@ -25,7 +25,7 @@ import {
     ITestsHelper,
 } from '../../client/testing/common/types';
 import { ITestingSettings } from '../../client/testing/configuration/types';
-import { NONE_SELECTED, UnitTestConfigurationService } from '../../client/testing/configuration';
+import { UnitTestConfigurationService } from '../../client/testing/configuration';
 
 suite('Unit Tests - ConfigurationService', () => {
     UNIT_TEST_PRODUCTS.forEach((product) => {
@@ -259,198 +259,6 @@ suite('Unit Tests - ConfigurationService', () => {
                 enabled = true;
                 expect(testConfigService.target.hasConfiguredTests(workspaceUri)).to.equal(true);
             });
-            test('Prompt to enable a test if a test framework is not enabled', async () => {
-                unitTestSettings.setup((u) => u.pytestEnabled).returns(() => false);
-                unitTestSettings.setup((u) => u.unittestEnabled).returns(() => false);
-
-                appShell
-                    .setup((s) => s.showInformationMessage(typeMoq.It.isAny(), typeMoq.It.isAny()))
-                    .returns(() => Promise.resolve(undefined))
-                    .verifiable(typeMoq.Times.once());
-
-                let exceptionThrown = false;
-                try {
-                    await testConfigService.target.displayTestFrameworkError(workspaceUri);
-                } catch (exc) {
-                    if (exc !== NONE_SELECTED) {
-                        throw exc;
-                    }
-                    exceptionThrown = true;
-                }
-
-                expect(exceptionThrown).to.be.equal(true, 'Exception not thrown');
-                appShell.verifyAll();
-            });
-            test('Prompt to select a test if a test framework is not enabled', async () => {
-                unitTestSettings.setup((u) => u.pytestEnabled).returns(() => false);
-                unitTestSettings.setup((u) => u.unittestEnabled).returns(() => false);
-
-                appShell
-                    .setup((s) => s.showInformationMessage(typeMoq.It.isAny(), typeMoq.It.isAny()))
-                    .returns((_msg, option) => Promise.resolve(option))
-                    .verifiable(typeMoq.Times.once());
-
-                let exceptionThrown = false;
-                let selectTestRunnerInvoked = false;
-                try {
-                    testConfigService.callBase = false;
-                    testConfigService
-                        .setup((t) => t.selectTestRunner(typeMoq.It.isAny()))
-                        .returns(() => {
-                            selectTestRunnerInvoked = true;
-                            return Promise.resolve(undefined);
-                        });
-                    await testConfigService.target.displayTestFrameworkError(workspaceUri);
-                } catch (exc) {
-                    if (exc !== NONE_SELECTED) {
-                        throw exc;
-                    }
-                    exceptionThrown = true;
-                }
-
-                expect(selectTestRunnerInvoked).to.be.equal(true, 'Method not invoked');
-                expect(exceptionThrown).to.be.equal(true, 'Exception not thrown');
-                appShell.verifyAll();
-            });
-            test('Configure selected test framework and disable others', async () => {
-                unitTestSettings.setup((u) => u.pytestEnabled).returns(() => false);
-                unitTestSettings.setup((u) => u.unittestEnabled).returns(() => false);
-
-                const workspaceConfig = typeMoq.Mock.ofType<WorkspaceConfiguration>(
-                    undefined,
-                    typeMoq.MockBehavior.Strict,
-                );
-                workspaceConfig
-                    .setup((w) => w.get(typeMoq.It.isAny()))
-                    .returns(() => true)
-                    .verifiable(typeMoq.Times.once());
-                workspaceService
-                    .setup((w) => w.getConfiguration(typeMoq.It.isValue('python'), workspaceUri))
-                    .returns(() => workspaceConfig.object)
-                    .verifiable(typeMoq.Times.once());
-
-                appShell
-                    .setup((s) => s.showInformationMessage(typeMoq.It.isAny(), typeMoq.It.isAny()))
-                    .returns((_msg, option) => Promise.resolve(option))
-                    .verifiable(typeMoq.Times.once());
-
-                let selectTestRunnerInvoked = false;
-                testConfigService.callBase = false;
-                testConfigService
-                    .setup((t) => t.selectTestRunner(typeMoq.It.isAny()))
-                    .returns(() => {
-                        selectTestRunnerInvoked = true;
-                        return Promise.resolve(product);
-                    });
-
-                const configMgr = typeMoq.Mock.ofType<ITestConfigurationManager>(
-                    undefined,
-                    typeMoq.MockBehavior.Strict,
-                );
-                factory
-                    .setup((f) =>
-                        f.create(typeMoq.It.isValue(workspaceUri), typeMoq.It.isValue(product), typeMoq.It.isAny()),
-                    )
-                    .returns(() => configMgr.object)
-                    .verifiable(typeMoq.Times.once());
-
-                configMgr
-                    .setup((c) => c.configure(typeMoq.It.isValue(workspaceUri)))
-                    .returns(() => Promise.resolve())
-                    .verifiable(typeMoq.Times.once());
-                configMgr
-                    .setup((c) => c.enable())
-                    .returns(() => Promise.resolve())
-                    .verifiable(typeMoq.Times.once());
-
-                await testConfigService.target.displayTestFrameworkError(workspaceUri);
-
-                expect(selectTestRunnerInvoked).to.be.equal(true, 'Select Test Runner not invoked');
-                appShell.verifyAll();
-                factory.verifyAll();
-                configMgr.verifyAll();
-                workspaceConfig.verifyAll();
-            });
-            test('If more than one test framework is enabled, then prompt to select a test framework', async () => {
-                unitTestSettings.setup((u) => u.pytestEnabled).returns(() => true);
-                unitTestSettings.setup((u) => u.unittestEnabled).returns(() => true);
-
-                appShell
-                    .setup((s) => s.showInformationMessage(typeMoq.It.isAny(), typeMoq.It.isAny()))
-                    .returns(() => Promise.resolve(undefined))
-                    .verifiable(typeMoq.Times.never());
-                appShell
-                    .setup((s) => s.showQuickPick(typeMoq.It.isAny(), typeMoq.It.isAny()))
-                    .returns(() => Promise.resolve(undefined))
-                    .verifiable(typeMoq.Times.once());
-
-                let exceptionThrown = false;
-                try {
-                    await testConfigService.target.displayTestFrameworkError(workspaceUri);
-                } catch (exc) {
-                    if (exc !== NONE_SELECTED) {
-                        throw exc;
-                    }
-                    exceptionThrown = true;
-                }
-
-                expect(exceptionThrown).to.be.equal(true, 'Exception not thrown');
-                appShell.verifyAll();
-            });
-            test('If more than one test framework is enabled, then prompt to select a test framework and enable test, but do not configure', async () => {
-                unitTestSettings.setup((u) => u.pytestEnabled).returns(() => true);
-                unitTestSettings.setup((u) => u.unittestEnabled).returns(() => true);
-
-                appShell
-                    .setup((s) => s.showInformationMessage(typeMoq.It.isAny(), typeMoq.It.isAny()))
-                    .returns((_msg, option) => Promise.resolve(option))
-                    .verifiable(typeMoq.Times.never());
-
-                let selectTestRunnerInvoked = false;
-                testConfigService.callBase = false;
-                testConfigService
-                    .setup((t) => t.selectTestRunner(typeMoq.It.isAny()))
-                    .returns(() => {
-                        selectTestRunnerInvoked = true;
-                        return Promise.resolve(product);
-                    });
-
-                let enableTestInvoked = false;
-                testConfigService
-                    .setup((t) => t.enableTest(typeMoq.It.isValue(workspaceUri), typeMoq.It.isValue(product)))
-                    .returns(() => {
-                        enableTestInvoked = true;
-                        return Promise.resolve();
-                    });
-
-                const configMgr = typeMoq.Mock.ofType<ITestConfigurationManager>(
-                    undefined,
-                    typeMoq.MockBehavior.Strict,
-                );
-                factory
-                    .setup((f) =>
-                        f.create(typeMoq.It.isValue(workspaceUri), typeMoq.It.isValue(product), typeMoq.It.isAny()),
-                    )
-                    .returns(() => configMgr.object)
-                    .verifiable(typeMoq.Times.once());
-
-                configMgr
-                    .setup((c) => c.configure(typeMoq.It.isValue(workspaceUri)))
-                    .returns(() => Promise.resolve())
-                    .verifiable(typeMoq.Times.never());
-                configMgr
-                    .setup((c) => c.enable())
-                    .returns(() => Promise.resolve())
-                    .verifiable(typeMoq.Times.once());
-
-                await testConfigService.target.displayTestFrameworkError(workspaceUri);
-
-                expect(selectTestRunnerInvoked).to.be.equal(true, 'Select Test Runner not invoked');
-                expect(enableTestInvoked).to.be.equal(false, 'Enable Test is invoked');
-                factory.verifyAll();
-                appShell.verifyAll();
-                configMgr.verifyAll();
-            });
 
             test('Prompt to enable and configure selected test framework', async () => {
                 unitTestSettings.setup((u) => u.pytestEnabled).returns(() => false);

From 3ac006b13c5168493d3d228a843607569c19f4d1 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Thu, 10 Jul 2025 10:07:27 -0700
Subject: [PATCH 027/178] clean-up stale code in testing (#25270)

---
 .../testController/common/argumentsHelper.ts     | 16 ----------------
 .../testing/testController/pytest/runner.ts      | 10 ----------
 .../testing/testController/serviceRegistry.ts    |  6 +-----
 .../testing/testController/unittest/runner.ts    | 11 -----------
 4 files changed, 1 insertion(+), 42 deletions(-)
 delete mode 100644 src/client/testing/testController/pytest/runner.ts
 delete mode 100644 src/client/testing/testController/unittest/runner.ts

diff --git a/src/client/testing/testController/common/argumentsHelper.ts b/src/client/testing/testController/common/argumentsHelper.ts
index ef2999551f02..c155d0197da7 100644
--- a/src/client/testing/testController/common/argumentsHelper.ts
+++ b/src/client/testing/testController/common/argumentsHelper.ts
@@ -3,22 +3,6 @@
 
 import { traceWarn } from '../../../logging';
 
-export function getOptionValues(args: string[], option: string): string[] {
-    const values: string[] = [];
-    let returnNextValue = false;
-    for (const arg of args) {
-        if (returnNextValue) {
-            values.push(arg);
-            returnNextValue = false;
-        } else if (arg.startsWith(`${option}=`)) {
-            values.push(arg.substring(`${option}=`.length));
-        } else if (arg === option) {
-            returnNextValue = true;
-        }
-    }
-    return values;
-}
-
 export function getPositionalArguments(
     args: string[],
     optionsWithArguments: string[] = [],
diff --git a/src/client/testing/testController/pytest/runner.ts b/src/client/testing/testController/pytest/runner.ts
deleted file mode 100644
index e62902e4060a..000000000000
--- a/src/client/testing/testController/pytest/runner.ts
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (c) Microsoft Corporation. All rights reserved.
-// Licensed under the MIT License.
-import { ITestsRunner } from '../common/types';
-
-export class PytestRunner implements ITestsRunner {
-    // eslint-disable-next-line @typescript-eslint/no-useless-constructor
-    constructor() {
-        // not used, but required for DI
-    }
-}
diff --git a/src/client/testing/testController/serviceRegistry.ts b/src/client/testing/testController/serviceRegistry.ts
index 783af6fc8bda..03bf883e8eb1 100644
--- a/src/client/testing/testController/serviceRegistry.ts
+++ b/src/client/testing/testController/serviceRegistry.ts
@@ -4,23 +4,19 @@
 import { IExtensionSingleActivationService } from '../../activation/types';
 import { IServiceManager } from '../../ioc/types';
 import { PYTEST_PROVIDER, UNITTEST_PROVIDER } from '../common/constants';
-import { ITestFrameworkController, ITestsRunner, ITestController } from './common/types';
+import { ITestFrameworkController, ITestController } from './common/types';
 import { PythonTestController } from './controller';
 import { PytestController } from './pytest/pytestController';
-import { PytestRunner } from './pytest/runner';
-import { UnittestRunner } from './unittest/runner';
 import { UnittestController } from './unittest/unittestController';
 
 export function registerTestControllerTypes(serviceManager: IServiceManager): void {
     serviceManager.addSingleton<ITestFrameworkController>(ITestFrameworkController, PytestController, PYTEST_PROVIDER);
-    serviceManager.addSingleton<ITestsRunner>(ITestsRunner, PytestRunner, PYTEST_PROVIDER);
 
     serviceManager.addSingleton<ITestFrameworkController>(
         ITestFrameworkController,
         UnittestController,
         UNITTEST_PROVIDER,
     );
-    serviceManager.addSingleton<ITestsRunner>(ITestsRunner, UnittestRunner, UNITTEST_PROVIDER);
     serviceManager.addSingleton<ITestController>(ITestController, PythonTestController);
     serviceManager.addBinding(ITestController, IExtensionSingleActivationService);
 }
diff --git a/src/client/testing/testController/unittest/runner.ts b/src/client/testing/testController/unittest/runner.ts
deleted file mode 100644
index 45a0bddaeb75..000000000000
--- a/src/client/testing/testController/unittest/runner.ts
+++ /dev/null
@@ -1,11 +0,0 @@
-/* eslint-disable @typescript-eslint/no-unused-vars */
-// Copyright (c) Microsoft Corporation. All rights reserved.
-// Licensed under the MIT License.
-import { ITestsRunner } from '../common/types';
-
-export class UnittestRunner implements ITestsRunner {
-    // eslint-disable-next-line @typescript-eslint/no-useless-constructor
-    constructor() {
-        // not used, but required for DI
-    }
-}

From 0986bdc6188902f1beadae28c40a57f0e0e67646 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Thu, 10 Jul 2025 10:15:28 -0700
Subject: [PATCH 028/178] switch to absolute ids for class type testing objects
 (#25266)

problem with continuity here:
https://github.com/microsoft/vscode-python/pull/25257
---
 .../expected_discovery_test_output.py         | 85 +++++++++++++++----
 python_files/vscode_pytest/__init__.py        |  2 +-
 2 files changed, 69 insertions(+), 18 deletions(-)

diff --git a/python_files/tests/pytestadapter/expected_discovery_test_output.py b/python_files/tests/pytestadapter/expected_discovery_test_output.py
index d7e82acc6890..13bb6ee983cf 100644
--- a/python_files/tests/pytestadapter/expected_discovery_test_output.py
+++ b/python_files/tests/pytestadapter/expected_discovery_test_output.py
@@ -91,7 +91,10 @@
                             ),
                         }
                     ],
-                    "id_": "unittest_pytest_same_file.py::TestExample",
+                    "id_": get_absolute_test_id(
+                        "unittest_pytest_same_file.py::TestExample",
+                        unit_pytest_same_file_path,
+                    ),
                 },
                 {
                     "name": "test_true_pytest",
@@ -200,7 +203,10 @@
                                     ),
                                 },
                             ],
-                            "id_": "unittest_folder/test_add.py::TestAddFunction",
+                            "id_": get_absolute_test_id(
+                                "unittest_folder/test_add.py::TestAddFunction",
+                                test_add_path,
+                            ),
                         },
                         {
                             "name": "TestDuplicateFunction",
@@ -225,7 +231,10 @@
                                     ),
                                 },
                             ],
-                            "id_": "unittest_folder/test_add.py::TestDuplicateFunction",
+                            "id_": get_absolute_test_id(
+                                "unittest_folder/test_add.py::TestDuplicateFunction",
+                                test_add_path,
+                            ),
                         },
                     ],
                 },
@@ -275,7 +284,10 @@
                                     ),
                                 },
                             ],
-                            "id_": "unittest_folder/test_subtract.py::TestSubtractFunction",
+                            "id_": get_absolute_test_id(
+                                "unittest_folder/test_subtract.py::TestSubtractFunction",
+                                test_subtract_path,
+                            ),
                         },
                         {
                             "name": "TestDuplicateFunction",
@@ -300,7 +312,10 @@
                                     ),
                                 },
                             ],
-                            "id_": "unittest_folder/test_subtract.py::TestDuplicateFunction",
+                            "id_": get_absolute_test_id(
+                                "unittest_folder/test_subtract.py::TestDuplicateFunction",
+                                test_subtract_path,
+                            ),
                         },
                     ],
                 },
@@ -534,7 +549,10 @@
                     "name": "TestClass",
                     "path": os.fspath(parameterize_tests_path),
                     "type_": "class",
-                    "id_": "parametrize_tests.py::TestClass",
+                    "id_": get_absolute_test_id(
+                        "parametrize_tests.py::TestClass",
+                        parameterize_tests_path,
+                    ),
                     "children": [
                         {
                             "name": "test_adding",
@@ -907,13 +925,19 @@
                     "name": "TestFirstClass",
                     "path": str(TEST_MULTI_CLASS_NEST_PATH),
                     "type_": "class",
-                    "id_": "test_multi_class_nest.py::TestFirstClass",
+                    "id_": get_absolute_test_id(
+                        "test_multi_class_nest.py::TestFirstClass",
+                        TEST_MULTI_CLASS_NEST_PATH,
+                    ),
                     "children": [
                         {
                             "name": "TestSecondClass",
                             "path": str(TEST_MULTI_CLASS_NEST_PATH),
                             "type_": "class",
-                            "id_": "test_multi_class_nest.py::TestFirstClass::TestSecondClass",
+                            "id_": get_absolute_test_id(
+                                "test_multi_class_nest.py::TestFirstClass::TestSecondClass",
+                                TEST_MULTI_CLASS_NEST_PATH,
+                            ),
                             "children": [
                                 {
                                     "name": "test_second",
@@ -954,7 +978,10 @@
                             "name": "TestSecondClass2",
                             "path": str(TEST_MULTI_CLASS_NEST_PATH),
                             "type_": "class",
-                            "id_": "test_multi_class_nest.py::TestFirstClass::TestSecondClass2",
+                            "id_": get_absolute_test_id(
+                                "test_multi_class_nest.py::TestFirstClass::TestSecondClass2",
+                                TEST_MULTI_CLASS_NEST_PATH,
+                            ),
                             "children": [
                                 {
                                     "name": "test_second2",
@@ -1196,7 +1223,10 @@
                             + "::TestNotEmpty::test_string",
                         },
                     ],
-                    "id_": "same_function_new_class_param.py::TestNotEmpty",
+                    "id_": get_absolute_test_id(
+                        "same_function_new_class_param.py::TestNotEmpty",
+                        TEST_DATA_PATH / "same_function_new_class_param.py",
+                    ),
                 },
                 {
                     "name": "TestEmpty",
@@ -1264,7 +1294,10 @@
                             + "::TestEmpty::test_string",
                         },
                     ],
-                    "id_": "same_function_new_class_param.py::TestEmpty",
+                    "id_": get_absolute_test_id(
+                        "same_function_new_class_param.py::TestEmpty",
+                        TEST_DATA_PATH / "same_function_new_class_param.py",
+                    ),
                 },
             ],
         }
@@ -1334,7 +1367,10 @@
                             ),
                         }
                     ],
-                    "id_": "test_param_span_class.py::TestClass1",
+                    "id_": get_absolute_test_id(
+                        "test_param_span_class.py::TestClass1",
+                        TEST_DATA_PATH / "test_param_span_class.py",
+                    ),
                 },
                 {
                     "name": "TestClass2",
@@ -1387,7 +1423,10 @@
                             ),
                         }
                     ],
-                    "id_": "test_param_span_class.py::TestClass2",
+                    "id_": get_absolute_test_id(
+                        "test_param_span_class.py::TestClass2",
+                        TEST_DATA_PATH / "test_param_span_class.py",
+                    ),
                 },
             ],
         }
@@ -1460,7 +1499,10 @@
                                     ),
                                 },
                             ],
-                            "id_": "pytest_describe_plugin/describe_only.py::describe_A",
+                            "id_": get_absolute_test_id(
+                                "pytest_describe_plugin/describe_only.py::describe_A",
+                                describe_only_path,
+                            ),
                         }
                     ],
                 }
@@ -1540,7 +1582,10 @@
                                             ),
                                         },
                                     ],
-                                    "id_": "pytest_describe_plugin/nested_describe.py::describe_list::describe_append",
+                                    "id_": get_absolute_test_id(
+                                        "pytest_describe_plugin/nested_describe.py::describe_list::describe_append",
+                                        nested_describe_path,
+                                    ),
                                 },
                                 {
                                     "name": "describe_remove",
@@ -1565,10 +1610,16 @@
                                             ),
                                         }
                                     ],
-                                    "id_": "pytest_describe_plugin/nested_describe.py::describe_list::describe_remove",
+                                    "id_": get_absolute_test_id(
+                                        "pytest_describe_plugin/nested_describe.py::describe_list::describe_remove",
+                                        nested_describe_path,
+                                    ),
                                 },
                             ],
-                            "id_": "pytest_describe_plugin/nested_describe.py::describe_list",
+                            "id_": get_absolute_test_id(
+                                "pytest_describe_plugin/nested_describe.py::describe_list",
+                                nested_describe_path,
+                            ),
                         }
                     ],
                 }
diff --git a/python_files/vscode_pytest/__init__.py b/python_files/vscode_pytest/__init__.py
index 18469cd0627f..de396d8520ef 100644
--- a/python_files/vscode_pytest/__init__.py
+++ b/python_files/vscode_pytest/__init__.py
@@ -769,7 +769,7 @@ def create_class_node(class_module: pytest.Class | DescribeBlock) -> TestNode:
         "path": get_node_path(class_module),
         "type_": "class",
         "children": [],
-        "id_": class_module.nodeid,
+        "id_": get_absolute_test_id(class_module.nodeid, get_node_path(class_module)),
     }
 
 

From 285734a2251b3d26259e08e6c05067985afd367f Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Thu, 10 Jul 2025 15:09:54 -0700
Subject: [PATCH 029/178] support --black as arg for testing (#25271)

fixes https://github.com/microsoft/vscode-python/issues/24966
---
 .../pytest-json-test-builder.instructions.md  | 126 ++++++++++++++++++
 build/test-requirements.txt                   |   1 +
 .../.data/2496-black-formatter/app.py         |   6 +
 .../.data/2496-black-formatter/test_app.py    |  14 ++
 .../expected_discovery_test_output.py         | 107 +++++++++++++++
 .../tests/pytestadapter/test_discovery.py     |  38 ++++--
 python_files/vscode_pytest/__init__.py        |   1 -
 .../testing/testController/common/utils.ts    |   9 +-
 8 files changed, 292 insertions(+), 10 deletions(-)
 create mode 100644 .github/instructions/pytest-json-test-builder.instructions.md
 create mode 100644 python_files/tests/pytestadapter/.data/2496-black-formatter/app.py
 create mode 100644 python_files/tests/pytestadapter/.data/2496-black-formatter/test_app.py

diff --git a/.github/instructions/pytest-json-test-builder.instructions.md b/.github/instructions/pytest-json-test-builder.instructions.md
new file mode 100644
index 000000000000..436bce0c9cd8
--- /dev/null
+++ b/.github/instructions/pytest-json-test-builder.instructions.md
@@ -0,0 +1,126 @@
+---
+applyTo: 'python_files/tests/pytestadapter/test_discovery.py'
+description: 'A guide for adding new tests for pytest discovery and JSON formatting in the test_pytest_collect suite.'
+---
+
+# How to Add New Pytest Discovery Tests
+
+This guide explains how to add new tests for pytest discovery and JSON formatting in the `test_pytest_collect` suite. Follow these steps to ensure your tests are consistent and correct.
+
+---
+
+## 1. Add Your Test File
+
+-   Place your new test file/files in the appropriate subfolder under:
+    ```
+    python_files/tests/pytestadapter/.data/
+    ```
+-   Organize folders and files to match the structure you want to test. For example, to test nested folders, create the corresponding directory structure.
+-   In your test file, mark each test function with a comment:
+    ```python
+    def test_function():  # test_marker--test_function
+        ...
+    ```
+
+**Root Node Matching:**
+
+-   The root node in your expected output must match the folder or file you pass to pytest discovery. For example, if you run discovery on a subfolder, the root `"name"`, `"path"`, and `"id_"` in your expected output should be that subfolder, not the parent `.data` folder.
+-   Only use `.data` as the root if you are running discovery on the entire `.data` folder.
+
+**Example:**
+If you run:
+
+```python
+helpers.runner([os.fspath(TEST_DATA_PATH / "myfolder"), "--collect-only"])
+```
+
+then your expected output root should be:
+
+```python
+{
+    "name": "myfolder",
+    "path": os.fspath(TEST_DATA_PATH / "myfolder"),
+    "type_": "folder",
+    ...
+}
+```
+
+---
+
+## 2. Update `expected_discovery_test_output.py`
+
+-   Open `expected_discovery_test_output.py` in the same test suite.
+-   Add a new expected output dictionary for your test file, following the format of existing entries.
+-   Use the helper functions and path conventions:
+    -   Use `os.fspath()` for all paths.
+    -   Use `find_test_line_number("function_name", file_path)` for the `lineno` field.
+    -   Use `get_absolute_test_id("relative_path::function_name", file_path)` for `id_` and `runID`.
+    -   Always use current path concatenation (e.g., `TEST_DATA_PATH / "your_folder" / "your_file.py"`).
+    -   Create new constants as needed to keep the code clean and maintainable.
+
+**Important:**
+
+-   Do **not** read the entire `expected_discovery_test_output.py` file if you only need to add or reference a single constant. This file is very large; prefer searching for the relevant section or appending to the end.
+
+**Example:**
+If you run discovery on a subfolder:
+
+```python
+helpers.runner([os.fspath(TEST_DATA_PATH / "myfolder"), "--collect-only"])
+```
+
+then your expected output root should be:
+
+```python
+myfolder_path = TEST_DATA_PATH / "myfolder"
+my_expected_output = {
+    "name": "myfolder",
+    "path": os.fspath(myfolder_path),
+    "type_": "folder",
+    ...
+}
+```
+
+-   Add a comment above your dictionary describing the structure, as in the existing examples.
+
+---
+
+## 3. Add Your Test to `test_discovery.py`
+
+-   In `test_discovery.py`, add your new test as a parameterized case to the main `test_pytest_collect` function. Do **not** create a standalone test function for new discovery cases.
+-   Reference your new expected output constant from `expected_discovery_test_output.py`.
+
+**Example:**
+
+```python
+@pytest.mark.parametrize(
+    ("file", "expected_const"),
+    [
+        ("myfolder", my_expected_output),
+        # ... other cases ...
+    ],
+)
+def test_pytest_collect(file, expected_const):
+    ...
+```
+
+---
+
+## 4. Run and Verify
+
+-   Run the test suite to ensure your new test is discovered and passes.
+-   If the test fails, check your expected output dictionary for path or structure mismatches.
+
+---
+
+## 5. Tips
+
+-   Always use the helper functions for line numbers and IDs.
+-   Match the folder/file structure in `.data` to the expected JSON structure.
+-   Use comments to document the expected output structure for clarity.
+-   Ensure all `"path"` and `"id_"` fields in your expected output match exactly what pytest returns, including absolute paths and root node structure.
+
+---
+
+**Reference:**
+See `expected_discovery_test_output.py` for more examples and formatting. Use search or jump to the end of the file to avoid reading the entire file when possible.
diff --git a/build/test-requirements.txt b/build/test-requirements.txt
index df9fd2b08c6e..6d64ff72ac7f 100644
--- a/build/test-requirements.txt
+++ b/build/test-requirements.txt
@@ -39,3 +39,4 @@ pytest-describe
 
 # for pytest-ruff related tests
 pytest-ruff
+pytest-black
diff --git a/python_files/tests/pytestadapter/.data/2496-black-formatter/app.py b/python_files/tests/pytestadapter/.data/2496-black-formatter/app.py
new file mode 100644
index 000000000000..3b474e9d911e
--- /dev/null
+++ b/python_files/tests/pytestadapter/.data/2496-black-formatter/app.py
@@ -0,0 +1,6 @@
+def add(a, b):
+    return a + b
+
+
+def subtract(a, b):
+    return a - b
diff --git a/python_files/tests/pytestadapter/.data/2496-black-formatter/test_app.py b/python_files/tests/pytestadapter/.data/2496-black-formatter/test_app.py
new file mode 100644
index 000000000000..ef4398feb786
--- /dev/null
+++ b/python_files/tests/pytestadapter/.data/2496-black-formatter/test_app.py
@@ -0,0 +1,14 @@
+import pytest
+from app import add, subtract
+
+
+def test_add(): # test_marker--test_add
+    assert add(2, 3) == 5
+    assert add(-1, 1) == 0
+    assert add(0, 0) == 0
+
+
+def test_subtract(): # test_marker--test_subtract
+    assert subtract(5, 3) == 2
+    assert subtract(0, 0) == 0
+    assert subtract(-1, -1) == 0
diff --git a/python_files/tests/pytestadapter/expected_discovery_test_output.py b/python_files/tests/pytestadapter/expected_discovery_test_output.py
index 13bb6ee983cf..e00db5d660a3 100644
--- a/python_files/tests/pytestadapter/expected_discovery_test_output.py
+++ b/python_files/tests/pytestadapter/expected_discovery_test_output.py
@@ -1719,3 +1719,110 @@
     ],
     "id_": TEST_DATA_PATH_STR,
 }
+
+# This is the expected output for the 2496-black-formatter folder when run with black plugin
+# └── .data
+#    └── 2496-black-formatter
+#       └── app.py
+#          └── black
+#       └── test_app.py
+#          └── black
+#          └── test_add
+#          └── test_subtract
+black_formatter_folder_path = TEST_DATA_PATH / "2496-black-formatter"
+black_app_path = black_formatter_folder_path / "app.py"
+black_test_app_path = black_formatter_folder_path / "test_app.py"
+black_formatter_expected_output = {
+    "name": ".data",
+    "path": TEST_DATA_PATH_STR,
+    "type_": "folder",
+    "children": [
+        {
+            "name": "2496-black-formatter",
+            "path": os.fspath(black_formatter_folder_path),
+            "type_": "folder",
+            "id_": os.fspath(black_formatter_folder_path),
+            "children": [
+                {
+                    "name": "app.py",
+                    "path": os.fspath(black_app_path),
+                    "type_": "file",
+                    "id_": os.fspath(black_app_path),
+                    "children": [
+                        {
+                            "name": "black",
+                            "path": os.fspath(black_app_path),
+                            "lineno": "0",
+                            "type_": "test",
+                            "id_": get_absolute_test_id(
+                                "2496-black-formatter/app.py::black",
+                                black_app_path,
+                            ),
+                            "runID": get_absolute_test_id(
+                                "2496-black-formatter/app.py::black",
+                                black_app_path,
+                            ),
+                        }
+                    ],
+                },
+                {
+                    "name": "test_app.py",
+                    "path": os.fspath(black_test_app_path),
+                    "type_": "file",
+                    "id_": os.fspath(black_test_app_path),
+                    "children": [
+                        {
+                            "name": "black",
+                            "path": os.fspath(black_test_app_path),
+                            "lineno": "0",
+                            "type_": "test",
+                            "id_": get_absolute_test_id(
+                                "2496-black-formatter/test_app.py::black",
+                                black_test_app_path,
+                            ),
+                            "runID": get_absolute_test_id(
+                                "2496-black-formatter/test_app.py::black",
+                                black_test_app_path,
+                            ),
+                        },
+                        {
+                            "name": "test_add",
+                            "path": os.fspath(black_test_app_path),
+                            "lineno": find_test_line_number(
+                                "test_add",
+                                black_test_app_path,
+                            ),
+                            "type_": "test",
+                            "id_": get_absolute_test_id(
+                                "2496-black-formatter/test_app.py::test_add",
+                                black_test_app_path,
+                            ),
+                            "runID": get_absolute_test_id(
+                                "2496-black-formatter/test_app.py::test_add",
+                                black_test_app_path,
+                            ),
+                        },
+                        {
+                            "name": "test_subtract",
+                            "path": os.fspath(black_test_app_path),
+                            "lineno": find_test_line_number(
+                                "test_subtract",
+                                black_test_app_path,
+                            ),
+                            "type_": "test",
+                            "id_": get_absolute_test_id(
+                                "2496-black-formatter/test_app.py::test_subtract",
+                                black_test_app_path,
+                            ),
+                            "runID": get_absolute_test_id(
+                                "2496-black-formatter/test_app.py::test_subtract",
+                                black_test_app_path,
+                            ),
+                        },
+                    ],
+                },
+            ],
+        }
+    ],
+    "id_": TEST_DATA_PATH_STR,
+}
diff --git a/python_files/tests/pytestadapter/test_discovery.py b/python_files/tests/pytestadapter/test_discovery.py
index 4f9fe3eb19ac..842ee3c7c707 100644
--- a/python_files/tests/pytestadapter/test_discovery.py
+++ b/python_files/tests/pytestadapter/test_discovery.py
@@ -337,15 +337,37 @@ def test_config_sub_folder():
             assert tests.get("name") == "config_sub_folder"
 
 
-def test_ruff_plugin():
-    """Here the session node will be a subfolder of the workspace root and the test are in another subfolder.
+@pytest.mark.parametrize(
+    ("file", "expected_const", "extra_arg"),
+    [
+        (
+            "folder_with_script",
+            expected_discovery_test_output.ruff_test_expected_output,
+            "--ruff",
+        ),
+        (
+            "2496-black-formatter",
+            expected_discovery_test_output.black_formatter_expected_output,
+            "--black",
+        ),
+    ],
+)
+def test_plugin_collect(file, expected_const, extra_arg):
+    """Test pytest discovery on a folder with a plugin argument (e.g., --ruff, --black).
 
-    This tests checks to see if test node path are under the session node and if so the
-    session node is correctly updated to the common path.
+    Uses variables from expected_discovery_test_output.py to store the expected
+    dictionary return. Only handles discovery and therefore already contains the arg
+    --collect-only. All test discovery will succeed, be in the correct cwd, and match
+    expected test output.
+
+    Keyword arguments:
+    file -- a string with the file or folder to run pytest discovery on.
+    expected_const -- the expected output from running pytest discovery on the file.
+    extra_arg -- the extra plugin argument to pass (e.g., --ruff, --black)
     """
-    file_path = helpers.TEST_DATA_PATH / "folder_with_script"
+    file_path = helpers.TEST_DATA_PATH / file
     actual = helpers.runner(
-        [os.fspath(file_path), "--collect-only", "--ruff"],
+        [os.fspath(file_path), "--collect-only", extra_arg],
     )
 
     assert actual
@@ -359,8 +381,8 @@ def test_ruff_plugin():
         assert actual_item.get("cwd") == os.fspath(helpers.TEST_DATA_PATH)
         assert is_same_tree(
             actual_item.get("tests"),
-            expected_discovery_test_output.ruff_test_expected_output,
+            expected_const,
             ["id_", "lineno", "name", "runID"],
         ), (
-            f"Tests tree does not match expected value. \n Expected: {json.dumps(expected_discovery_test_output.ruff_test_expected_output, indent=4)}. \n Actual: {json.dumps(actual_item.get('tests'), indent=4)}"
+            f"Tests tree does not match expected value. \n Expected: {json.dumps(expected_const, indent=4)}. \n Actual: {json.dumps(actual_item.get('tests'), indent=4)}"
         )
diff --git a/python_files/vscode_pytest/__init__.py b/python_files/vscode_pytest/__init__.py
index de396d8520ef..72eaa7a787d5 100644
--- a/python_files/vscode_pytest/__init__.py
+++ b/python_files/vscode_pytest/__init__.py
@@ -17,7 +17,6 @@
 if TYPE_CHECKING:
     from pluggy import Result
 
-
 USES_PYTEST_DESCRIBE = False
 
 with contextlib.suppress(ImportError):
diff --git a/src/client/testing/testController/common/utils.ts b/src/client/testing/testController/common/utils.ts
index c624ef034cf1..f4647d20666d 100644
--- a/src/client/testing/testController/common/utils.ts
+++ b/src/client/testing/testController/common/utils.ts
@@ -209,7 +209,14 @@ export function populateTestTree(
 
                 let range: Range | undefined;
                 if (child.lineno) {
-                    range = new Range(new Position(Number(child.lineno) - 1, 0), new Position(Number(child.lineno), 0));
+                    if (Number(child.lineno) === 0) {
+                        range = new Range(new Position(0, 0), new Position(0, 0));
+                    } else {
+                        range = new Range(
+                            new Position(Number(child.lineno) - 1, 0),
+                            new Position(Number(child.lineno), 0),
+                        );
+                    }
                 }
                 testItem.canResolveChildren = false;
                 testItem.range = range;

From 81f3397bceb804305383b3651180910e7fbdb19e Mon Sep 17 00:00:00 2001
From: Copilot <198982749+Copilot@users.noreply.github.com>
Date: Thu, 10 Jul 2025 22:18:18 +0000
Subject: [PATCH 030/178] Enhance pytest installation flow and error handling
 with Environment Extension integration (#25252)

## Overview

This PR addresses the issue where pytest configuration attempts would
proceed without user confirmation when pytest is not installed, and
provides better error messages when pytest installation issues occur.

## Changes Made

### 1. Enhanced User Prompt for pytest Installation

**Before**: Extension would silently attempt to install pytest without
user input.

**After**: Shows a user-friendly prompt when pytest is selected but not
installed:
```
pytest selected but not installed. Would you like to install pytest?
[Install pytest] [Ignore]
```

### 2. Python Environments Extension Integration

When the Python Environments extension is available:
- Uses the `managePackages` API for proper environment-targeted
installation
- Ensures pytest is installed in the correct Python environment
- Provides better integration with the extension ecosystem

**New Class**: `PytestInstallationHelper` handles the enhanced
installation flow with fallback to traditional installer when the
environment extension is not available.

## Technical Implementation

- **New**:
`src/client/testing/configuration/pytestInstallationHelper.ts` - Handles
enhanced installation flow
- **Enhanced**:
`src/client/testing/configuration/pytest/testConfigurationManager.ts` -
Integrates new installation helper
- **Enhanced**: `src/client/testing/testController/common/utils.ts` -
Improved error message detection
- **Comprehensive test coverage** with unit tests for all scenarios

Fixes #[25251](https://github.com/microsoft/vscode-python/issues/25251).
also fixes https://github.com/microsoft/vscode-python/issues/17772

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: eleanorjboyd <26030610+eleanorjboyd@users.noreply.github.com>
Co-authored-by: anthonykim1 <62267334+anthonykim1@users.noreply.github.com>
---
 .../pytest/testConfigurationManager.ts        |  23 ++-
 .../configuration/pytestInstallationHelper.ts |  95 +++++++++++++
 .../testing/testController/common/utils.ts    |  26 +++-
 .../pytestInstallationHelper.unit.test.ts     | 131 ++++++++++++++++++
 .../common/buildErrorNodeOptions.unit.test.ts |  51 +++++++
 5 files changed, 322 insertions(+), 4 deletions(-)
 create mode 100644 src/client/testing/configuration/pytestInstallationHelper.ts
 create mode 100644 src/test/testing/configuration/pytestInstallationHelper.unit.test.ts
 create mode 100644 src/test/testing/testController/common/buildErrorNodeOptions.unit.test.ts

diff --git a/src/client/testing/configuration/pytest/testConfigurationManager.ts b/src/client/testing/configuration/pytest/testConfigurationManager.ts
index 89f4246346ef..08f88f8564c7 100644
--- a/src/client/testing/configuration/pytest/testConfigurationManager.ts
+++ b/src/client/testing/configuration/pytest/testConfigurationManager.ts
@@ -3,12 +3,19 @@ import { QuickPickItem, Uri } from 'vscode';
 import { IFileSystem } from '../../../common/platform/types';
 import { Product } from '../../../common/types';
 import { IServiceContainer } from '../../../ioc/types';
+import { IApplicationShell } from '../../../common/application/types';
 import { TestConfigurationManager } from '../../common/testConfigurationManager';
 import { ITestConfigSettingsService } from '../../common/types';
+import { PytestInstallationHelper } from '../pytestInstallationHelper';
+import { traceInfo } from '../../../logging';
 
 export class ConfigurationManager extends TestConfigurationManager {
+    private readonly pytestInstallationHelper: PytestInstallationHelper;
+
     constructor(workspace: Uri, serviceContainer: IServiceContainer, cfg?: ITestConfigSettingsService) {
         super(workspace, Product.pytest, serviceContainer, cfg);
+        const appShell = serviceContainer.get<IApplicationShell>(IApplicationShell);
+        this.pytestInstallationHelper = new PytestInstallationHelper(appShell);
     }
 
     public async requiresUserToConfigure(wkspace: Uri): Promise<boolean> {
@@ -42,10 +49,22 @@ export class ConfigurationManager extends TestConfigurationManager {
             args.push(testDir);
         }
         const installed = await this.installer.isInstalled(Product.pytest);
+        await this.testConfigSettingsService.updateTestArgs(wkspace.fsPath, Product.pytest, args);
         if (!installed) {
-            await this.installer.install(Product.pytest);
+            // Check if Python Environments extension is available for enhanced installation flow
+            if (this.pytestInstallationHelper.isEnvExtensionAvailable()) {
+                traceInfo('pytest not installed, prompting user with environment extension integration');
+                const installAttempted = await this.pytestInstallationHelper.promptToInstallPytest(wkspace);
+                if (!installAttempted) {
+                    // User chose to ignore or installation failed
+                    return;
+                }
+            } else {
+                // Fall back to traditional installer
+                traceInfo('pytest not installed, falling back to traditional installer');
+                await this.installer.install(Product.pytest);
+            }
         }
-        await this.testConfigSettingsService.updateTestArgs(wkspace.fsPath, Product.pytest, args);
     }
 
     private async getConfigFiles(rootDir: string): Promise<string[]> {
diff --git a/src/client/testing/configuration/pytestInstallationHelper.ts b/src/client/testing/configuration/pytestInstallationHelper.ts
new file mode 100644
index 000000000000..bd5fbcd5bb37
--- /dev/null
+++ b/src/client/testing/configuration/pytestInstallationHelper.ts
@@ -0,0 +1,95 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+import { Uri, l10n } from 'vscode';
+import { IApplicationShell } from '../../common/application/types';
+import { traceInfo, traceError } from '../../logging';
+import { useEnvExtension, getEnvExtApi } from '../../envExt/api.internal';
+import { getEnvironment } from '../../envExt/api.internal';
+
+/**
+ * Helper class to handle pytest installation using the appropriate method
+ * based on whether the Python Environments extension is available.
+ */
+export class PytestInstallationHelper {
+    constructor(private readonly appShell: IApplicationShell) {}
+
+    /**
+     * Prompts the user to install pytest with appropriate installation method.
+     * @param workspaceUri The workspace URI where pytest should be installed
+     * @returns Promise that resolves to true if installation was attempted, false otherwise
+     */
+    async promptToInstallPytest(workspaceUri: Uri): Promise<boolean> {
+        const message = l10n.t('pytest selected but not installed. Would you like to install pytest?');
+        const installOption = l10n.t('Install pytest');
+
+        const selection = await this.appShell.showInformationMessage(message, { modal: true }, installOption);
+
+        if (selection === installOption) {
+            return this.installPytest(workspaceUri);
+        }
+
+        return false;
+    }
+
+    /**
+     * Installs pytest using the appropriate method based on available extensions.
+     * @param workspaceUri The workspace URI where pytest should be installed
+     * @returns Promise that resolves to true if installation was successful, false otherwise
+     */
+    private async installPytest(workspaceUri: Uri): Promise<boolean> {
+        try {
+            if (useEnvExtension()) {
+                return this.installPytestWithEnvExtension(workspaceUri);
+            } else {
+                // Fall back to traditional installer if environments extension is not available
+                traceInfo(
+                    'Python Environments extension not available, installation cannot proceed via environment extension',
+                );
+                return false;
+            }
+        } catch (error) {
+            traceError('Error installing pytest:', error);
+            return false;
+        }
+    }
+
+    /**
+     * Installs pytest using the Python Environments extension.
+     * @param workspaceUri The workspace URI where pytest should be installed
+     * @returns Promise that resolves to true if installation was successful, false otherwise
+     */
+    private async installPytestWithEnvExtension(workspaceUri: Uri): Promise<boolean> {
+        try {
+            const envExtApi = await getEnvExtApi();
+            const environment = await getEnvironment(workspaceUri);
+
+            if (!environment) {
+                traceError('No Python environment found for workspace:', workspaceUri.fsPath);
+                await this.appShell.showErrorMessage(
+                    l10n.t('No Python environment found. Please set up a Python environment first.'),
+                );
+                return false;
+            }
+
+            traceInfo('Installing pytest using Python Environments extension...');
+            await envExtApi.managePackages(environment, {
+                install: ['pytest'],
+            });
+
+            traceInfo('pytest installation completed successfully');
+            return true;
+        } catch (error) {
+            traceError('Failed to install pytest using Python Environments extension:', error);
+            return false;
+        }
+    }
+
+    /**
+     * Checks if the Python Environments extension is available for package management.
+     * @returns True if the extension is available, false otherwise
+     */
+    isEnvExtensionAvailable(): boolean {
+        return useEnvExtension();
+    }
+}
diff --git a/src/client/testing/testController/common/utils.ts b/src/client/testing/testController/common/utils.ts
index f4647d20666d..0bbf0e449dcd 100644
--- a/src/client/testing/testController/common/utils.ts
+++ b/src/client/testing/testController/common/utils.ts
@@ -174,12 +174,34 @@ export async function startDiscoveryNamedPipe(
     return pipeName;
 }
 
+/**
+ * Detects if an error message indicates that pytest is not installed.
+ * @param message The error message to check
+ * @returns True if the error indicates pytest is not installed
+ */
+function isPytestNotInstalledError(message: string): boolean {
+    return (
+        (message.includes('ModuleNotFoundError') && message.includes('pytest')) ||
+        (message.includes('No module named') && message.includes('pytest')) ||
+        (message.includes('ImportError') && message.includes('pytest'))
+    );
+}
+
 export function buildErrorNodeOptions(uri: Uri, message: string, testType: string): ErrorTestItemOptions {
-    const labelText = testType === 'pytest' ? 'pytest Discovery Error' : 'Unittest Discovery Error';
+    let labelText = testType === 'pytest' ? 'pytest Discovery Error' : 'Unittest Discovery Error';
+    let errorMessage = message;
+
+    // Provide more specific error message if pytest is not installed
+    if (testType === 'pytest' && isPytestNotInstalledError(message)) {
+        labelText = 'pytest Not Installed';
+        errorMessage =
+            'pytest is not installed in the selected Python environment. Please install pytest to enable test discovery and execution.';
+    }
+
     return {
         id: `DiscoveryError:${uri.fsPath}`,
         label: `${labelText} [${path.basename(uri.fsPath)}]`,
-        error: message,
+        error: errorMessage,
     };
 }
 
diff --git a/src/test/testing/configuration/pytestInstallationHelper.unit.test.ts b/src/test/testing/configuration/pytestInstallationHelper.unit.test.ts
new file mode 100644
index 000000000000..d7a1313df591
--- /dev/null
+++ b/src/test/testing/configuration/pytestInstallationHelper.unit.test.ts
@@ -0,0 +1,131 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+import { expect } from 'chai';
+import * as sinon from 'sinon';
+import { Uri } from 'vscode';
+import * as TypeMoq from 'typemoq';
+import { IApplicationShell } from '../../../client/common/application/types';
+import { PytestInstallationHelper } from '../../../client/testing/configuration/pytestInstallationHelper';
+import * as envExtApi from '../../../client/envExt/api.internal';
+
+suite('PytestInstallationHelper', () => {
+    let appShell: TypeMoq.IMock<IApplicationShell>;
+    let helper: PytestInstallationHelper;
+    let useEnvExtensionStub: sinon.SinonStub;
+    let getEnvExtApiStub: sinon.SinonStub;
+    let getEnvironmentStub: sinon.SinonStub;
+
+    const workspaceUri = Uri.file('/test/workspace');
+
+    setup(() => {
+        appShell = TypeMoq.Mock.ofType<IApplicationShell>();
+        helper = new PytestInstallationHelper(appShell.object);
+
+        useEnvExtensionStub = sinon.stub(envExtApi, 'useEnvExtension');
+        getEnvExtApiStub = sinon.stub(envExtApi, 'getEnvExtApi');
+        getEnvironmentStub = sinon.stub(envExtApi, 'getEnvironment');
+    });
+
+    teardown(() => {
+        sinon.restore();
+    });
+
+    test('promptToInstallPytest should return false if user selects ignore', async () => {
+        appShell
+            .setup((a) =>
+                a.showInformationMessage(
+                    TypeMoq.It.isAny(),
+                    TypeMoq.It.isAny(),
+                    TypeMoq.It.isAny(),
+                    TypeMoq.It.isAny(),
+                ),
+            )
+            .returns(() => Promise.resolve('Ignore'))
+            .verifiable(TypeMoq.Times.once());
+
+        const result = await helper.promptToInstallPytest(workspaceUri);
+
+        expect(result).to.be.false;
+        appShell.verifyAll();
+    });
+
+    test('promptToInstallPytest should return false if user cancels', async () => {
+        appShell
+            .setup((a) =>
+                a.showInformationMessage(
+                    TypeMoq.It.isAny(),
+                    TypeMoq.It.isAny(),
+                    TypeMoq.It.isAny(),
+                    TypeMoq.It.isAny(),
+                ),
+            )
+            .returns(() => Promise.resolve(undefined))
+            .verifiable(TypeMoq.Times.once());
+
+        const result = await helper.promptToInstallPytest(workspaceUri);
+
+        expect(result).to.be.false;
+        appShell.verifyAll();
+    });
+
+    test('isEnvExtensionAvailable should return result from useEnvExtension', () => {
+        useEnvExtensionStub.returns(true);
+
+        const result = helper.isEnvExtensionAvailable();
+
+        expect(result).to.be.true;
+        expect(useEnvExtensionStub.calledOnce).to.be.true;
+    });
+
+    test('promptToInstallPytest should return false if env extension not available', async () => {
+        useEnvExtensionStub.returns(false);
+
+        appShell
+            .setup((a) =>
+                a.showInformationMessage(
+                    TypeMoq.It.isAny(),
+                    TypeMoq.It.isAny(),
+                    TypeMoq.It.isAny(),
+                    TypeMoq.It.isAny(),
+                ),
+            )
+            .returns(() => Promise.resolve('Install pytest'))
+            .verifiable(TypeMoq.Times.once());
+
+        const result = await helper.promptToInstallPytest(workspaceUri);
+
+        expect(result).to.be.false;
+        appShell.verifyAll();
+    });
+
+    test('promptToInstallPytest should attempt installation when env extension is available', async () => {
+        useEnvExtensionStub.returns(true);
+
+        const mockEnvironment = { envId: { id: 'test-env', managerId: 'test-manager' } };
+        const mockEnvExtApi = {
+            managePackages: sinon.stub().resolves(),
+        };
+
+        getEnvExtApiStub.resolves(mockEnvExtApi);
+        getEnvironmentStub.resolves(mockEnvironment);
+
+        appShell
+            .setup((a) =>
+                a.showInformationMessage(
+                    TypeMoq.It.is((msg: string) => msg.includes('pytest selected but not installed')),
+                    TypeMoq.It.isAny(),
+                    TypeMoq.It.isAny(),
+                    TypeMoq.It.isAny(),
+                ),
+            )
+            .returns(() => Promise.resolve('Install pytest'))
+            .verifiable(TypeMoq.Times.once());
+
+        const result = await helper.promptToInstallPytest(workspaceUri);
+
+        expect(result).to.be.true;
+        expect(mockEnvExtApi.managePackages.calledOnceWithExactly(mockEnvironment, { install: ['pytest'] })).to.be.true;
+        appShell.verifyAll();
+    });
+});
diff --git a/src/test/testing/testController/common/buildErrorNodeOptions.unit.test.ts b/src/test/testing/testController/common/buildErrorNodeOptions.unit.test.ts
new file mode 100644
index 000000000000..cf41136db697
--- /dev/null
+++ b/src/test/testing/testController/common/buildErrorNodeOptions.unit.test.ts
@@ -0,0 +1,51 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+import { expect } from 'chai';
+import { Uri } from 'vscode';
+import { buildErrorNodeOptions } from '../../../../client/testing/testController/common/utils';
+
+suite('buildErrorNodeOptions - pytest not installed detection', () => {
+    const workspaceUri = Uri.file('/test/workspace');
+
+    test('Should detect pytest ModuleNotFoundError and provide specific message', () => {
+        const errorMessage =
+            'Traceback (most recent call last):\n  File "<string>", line 1, in <module>\n    import pytest\nModuleNotFoundError: No module named \'pytest\'';
+
+        const result = buildErrorNodeOptions(workspaceUri, errorMessage, 'pytest');
+
+        expect(result.label).to.equal('pytest Not Installed [workspace]');
+        expect(result.error).to.equal(
+            'pytest is not installed in the selected Python environment. Please install pytest to enable test discovery and execution.',
+        );
+    });
+
+    test('Should detect pytest ImportError and provide specific message', () => {
+        const errorMessage = 'ImportError: No module named pytest';
+
+        const result = buildErrorNodeOptions(workspaceUri, errorMessage, 'pytest');
+
+        expect(result.label).to.equal('pytest Not Installed [workspace]');
+        expect(result.error).to.equal(
+            'pytest is not installed in the selected Python environment. Please install pytest to enable test discovery and execution.',
+        );
+    });
+
+    test('Should use generic error for non-pytest-related errors', () => {
+        const errorMessage = 'Some other error occurred';
+
+        const result = buildErrorNodeOptions(workspaceUri, errorMessage, 'pytest');
+
+        expect(result.label).to.equal('pytest Discovery Error [workspace]');
+        expect(result.error).to.equal('Some other error occurred');
+    });
+
+    test('Should use generic error for unittest errors', () => {
+        const errorMessage = "ModuleNotFoundError: No module named 'pytest'";
+
+        const result = buildErrorNodeOptions(workspaceUri, errorMessage, 'unittest');
+
+        expect(result.label).to.equal('Unittest Discovery Error [workspace]');
+        expect(result.error).to.equal("ModuleNotFoundError: No module named 'pytest'");
+    });
+});

From efc5101305518c44df21e32fcec09682b5c3574a Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Fri, 11 Jul 2025 10:36:14 -0700
Subject: [PATCH 031/178] update telemetry events to support envs ext (#25277)

fixes for the following events:
`execution_code"`
`environment.created"`
`environment.creating"`
`python_interpreter_activation_for_terminal`
---
 src/client/common/terminal/activator/index.ts   |  5 +++++
 .../pythonEnvironments/creation/createEnvApi.ts | 17 +++++++++++++++++
 src/client/telemetry/index.ts                   |  2 +-
 .../codeExecution/codeExecutionManager.ts       | 11 +++++++++--
 4 files changed, 32 insertions(+), 3 deletions(-)

diff --git a/src/client/common/terminal/activator/index.ts b/src/client/common/terminal/activator/index.ts
index 6501688b548a..24ffb5008364 100644
--- a/src/client/common/terminal/activator/index.ts
+++ b/src/client/common/terminal/activator/index.ts
@@ -10,6 +10,8 @@ import { ITerminalActivationHandler, ITerminalActivator, ITerminalHelper, Termin
 import { BaseTerminalActivator } from './base';
 import { inTerminalEnvVarExperiment } from '../../experiments/helpers';
 import { useEnvExtension } from '../../../envExt/api.internal';
+import { EventName } from '../../../telemetry/constants';
+import { sendTelemetryEvent } from '../../../telemetry';
 
 @injectable()
 export class TerminalActivator implements ITerminalActivator {
@@ -43,6 +45,9 @@ export class TerminalActivator implements ITerminalActivator {
         const activateEnvironment =
             settings.terminal.activateEnvironment && !inTerminalEnvVarExperiment(this.experimentService);
         if (!activateEnvironment || options?.hideFromUser || useEnvExtension()) {
+            if (useEnvExtension()) {
+                sendTelemetryEvent(EventName.PYTHON_INTERPRETER_ACTIVATION_FOR_TERMINAL);
+            }
             return false;
         }
 
diff --git a/src/client/pythonEnvironments/creation/createEnvApi.ts b/src/client/pythonEnvironments/creation/createEnvApi.ts
index d585256200d8..899f57728804 100644
--- a/src/client/pythonEnvironments/creation/createEnvApi.ts
+++ b/src/client/pythonEnvironments/creation/createEnvApi.ts
@@ -72,11 +72,28 @@ export function registerCreateEnvironmentFeatures(
             ): Promise<CreateEnvironmentResult | undefined> => {
                 if (useEnvExtension()) {
                     try {
+                        sendTelemetryEvent(EventName.ENVIRONMENT_CREATING, undefined, {
+                            environmentType: undefined,
+                            pythonVersion: undefined,
+                        });
                         const result = await executeCommand<PythonEnvironment | undefined>(
                             'python-envs.createAny',
                             options,
                         );
                         if (result) {
+                            const managerId = result.envId.managerId;
+                            if (managerId === 'ms-python.python:venv') {
+                                sendTelemetryEvent(EventName.ENVIRONMENT_CREATED, undefined, {
+                                    environmentType: 'venv',
+                                    reason: 'created',
+                                });
+                            }
+                            if (managerId === 'ms-python.python:conda') {
+                                sendTelemetryEvent(EventName.ENVIRONMENT_CREATED, undefined, {
+                                    environmentType: 'conda',
+                                    reason: 'created',
+                                });
+                            }
                             return { path: result.environmentPath.path };
                         }
                     } catch (err) {
diff --git a/src/client/telemetry/index.ts b/src/client/telemetry/index.ts
index a387e45d694a..581fcfed1f63 100644
--- a/src/client/telemetry/index.ts
+++ b/src/client/telemetry/index.ts
@@ -2336,7 +2336,7 @@ export interface IEventNamePropertyMapping {
        }
      */
     [EventName.ENVIRONMENT_CREATING]: {
-        environmentType: 'venv' | 'conda' | 'microvenv';
+        environmentType: 'venv' | 'conda' | 'microvenv' | undefined;
         pythonVersion: string | undefined;
     };
     /**
diff --git a/src/client/terminals/codeExecution/codeExecutionManager.ts b/src/client/terminals/codeExecution/codeExecutionManager.ts
index d5eb69efba20..740256ca78b3 100644
--- a/src/client/terminals/codeExecution/codeExecutionManager.ts
+++ b/src/client/terminals/codeExecution/codeExecutionManager.ts
@@ -41,6 +41,8 @@ export class CodeExecutionManager implements ICodeExecutionManager {
                 this.disposableRegistry.push(
                     this.commandManager.registerCommand(cmd as any, async (file: Resource) => {
                         traceVerbose(`Attempting to run Python file`, file?.fsPath);
+                        const trigger = cmd === Commands.Exec_In_Terminal ? 'command' : 'icon';
+                        const newTerminalPerFile = cmd === Commands.Exec_In_Separate_Terminal;
 
                         if (useEnvExtension()) {
                             try {
@@ -51,6 +53,11 @@ export class CodeExecutionManager implements ICodeExecutionManager {
                             sendTelemetryEvent(EventName.ENVIRONMENT_CHECK_TRIGGER, undefined, {
                                 trigger: 'run-in-terminal',
                             });
+                            sendTelemetryEvent(EventName.EXECUTION_CODE, undefined, {
+                                scope: 'file',
+                                trigger,
+                                newTerminalPerFile,
+                            });
                             return;
                         }
 
@@ -66,9 +73,9 @@ export class CodeExecutionManager implements ICodeExecutionManager {
                             trigger: 'run-in-terminal',
                         });
                         triggerCreateEnvironmentCheckNonBlocking(CreateEnvironmentCheckKind.File, file);
-                        const trigger = cmd === Commands.Exec_In_Terminal ? 'command' : 'icon';
+
                         await this.executeFileInTerminal(file, trigger, {
-                            newTerminalPerFile: cmd === Commands.Exec_In_Separate_Terminal,
+                            newTerminalPerFile,
                         })
                             .then(() => {
                                 if (this.shouldTerminalFocusOnStart(file))

From c9c8b6831b11161374991c5252eb4f3068ba0d74 Mon Sep 17 00:00:00 2001
From: Copilot <198982749+Copilot@users.noreply.github.com>
Date: Fri, 11 Jul 2025 14:06:09 -0700
Subject: [PATCH 032/178] Add comprehensive tests for populateTestTree function
 (#25273)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This PR adds comprehensive unit tests for the `populateTestTree`
function in the VSCode Python extension's test controller, addressing
the need for better test coverage of this critical function.

## Changes Made

Added 10 comprehensive test cases to
`src/test/testing/testController/utils.unit.test.ts` covering:

### Core Functionality
- **Root creation**: Tests that a new root `TestItem` is created when
`testRoot` is undefined, with correct properties (id, name, path, tags,
canResolveChildren)
- **Recursive tree population**: Validates that all children in
`testTreeData` are processed recursively with proper hierarchy
- **Test item creation**: Ensures leaf nodes are created as `TestItem`
objects with correct properties
- **Node creation**: Tests non-leaf node creation and reuse of existing
nodes

### Edge Cases & Error Handling
- **Line number handling**: Tests correct `Range` creation for both zero
and non-zero line numbers
- **Cancellation support**: Verifies that processing stops when
cancellation token is triggered
- **Empty children**: Ensures graceful handling of nodes with no
children
- **Existing node reuse**: Tests that existing nodes are reused instead
of creating duplicates

### Data Integrity
- **Mapping updates**: Validates that `resultResolver` mappings
(`runIdToTestItem`, `runIdToVSid`, `vsIdToRunId`) are updated correctly
- **Tag assignment**: Confirms all created items have proper
`RunTestTag` and `DebugTestTag` tags

## Test Implementation Details

The tests follow existing patterns in the codebase:
- Uses **Mocha** test framework with `suite`/`test` TDD structure
- Leverages **sinon** for stubbing and mocking VSCode APIs
- Uses **assert** for validation
- Properly mocks `TestController`, `TestItem`, and `ITestResultResolver`
interfaces
- Includes setup/teardown for clean test isolation

All tests are passing and provide comprehensive coverage of the
`populateTestTree` function's behavior, ensuring robustness and
maintainability of this critical testing infrastructure component.

Fixes #25272.

<!-- START COPILOT CODING AGENT TIPS -->
---

💡 You can make Copilot smarter by setting up custom instructions,
customizing its development environment and configuring Model Context
Protocol (MCP) servers. Learn more [Copilot coding agent
tips](https://gh.io/copilot-coding-agent-tips) in the docs.

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: eleanorjboyd <26030610+eleanorjboyd@users.noreply.github.com>
---
 .../testing/testController/common/types.ts    |   2 +-
 .../testing/testController/utils.unit.test.ts | 664 +++++++++++++++++-
 2 files changed, 664 insertions(+), 2 deletions(-)

diff --git a/src/client/testing/testController/common/types.ts b/src/client/testing/testController/common/types.ts
index 282379abdb85..b4d95af6c30e 100644
--- a/src/client/testing/testController/common/types.ts
+++ b/src/client/testing/testController/common/types.ts
@@ -192,7 +192,7 @@ export type DiscoveredTestCommon = {
 };
 
 export type DiscoveredTestItem = DiscoveredTestCommon & {
-    lineno: number;
+    lineno: number | string;
     runID: string;
 };
 
diff --git a/src/test/testing/testController/utils.unit.test.ts b/src/test/testing/testController/utils.unit.test.ts
index 4d2af9da3d5a..c6d9a70831a9 100644
--- a/src/test/testing/testController/utils.unit.test.ts
+++ b/src/test/testing/testController/utils.unit.test.ts
@@ -2,8 +2,15 @@ import * as assert from 'assert';
 import * as sinon from 'sinon';
 import * as fs from 'fs';
 import * as path from 'path';
-import { writeTestIdsFile } from '../../../client/testing/testController/common/utils';
+import { CancellationToken, TestController, TestItem, Uri, Range, Position } from 'vscode';
+import { writeTestIdsFile, populateTestTree } from '../../../client/testing/testController/common/utils';
 import { EXTENSION_ROOT_DIR } from '../../../client/constants';
+import {
+    DiscoveredTestNode,
+    DiscoveredTestItem,
+    ITestResultResolver,
+} from '../../../client/testing/testController/common/types';
+import { RunTestTag, DebugTestTag } from '../../../client/testing/testController/common/testItemUtilities';
 
 suite('writeTestIdsFile tests', () => {
     let sandbox: sinon.SinonSandbox;
@@ -87,3 +94,658 @@ suite('getTempDir tests', () => {
         assert.ok(result.startsWith('/xdg/runtime/dir'));
     });
 });
+
+suite('populateTestTree tests', () => {
+    let sandbox: sinon.SinonSandbox;
+    let testController: TestController;
+    let resultResolver: ITestResultResolver;
+    let cancelationToken: CancellationToken;
+    let createTestItemStub: sinon.SinonStub;
+    let itemsAddStub: sinon.SinonStub;
+    let itemsGetStub: sinon.SinonStub;
+
+    setup(() => {
+        sandbox = sinon.createSandbox();
+
+        // Create stubs for TestController methods
+        createTestItemStub = sandbox.stub();
+        itemsAddStub = sandbox.stub();
+        itemsGetStub = sandbox.stub();
+
+        // Create mock TestController
+        testController = {
+            createTestItem: createTestItemStub,
+            items: {
+                add: itemsAddStub,
+                get: itemsGetStub,
+                delete: sandbox.stub(),
+                replace: sandbox.stub(),
+                forEach: sandbox.stub(),
+                size: 0,
+                [Symbol.iterator]: sandbox.stub(),
+            },
+        } as any;
+
+        // Create mock result resolver
+        resultResolver = {
+            runIdToTestItem: new Map(),
+            runIdToVSid: new Map(),
+            vsIdToRunId: new Map(),
+            detailedCoverageMap: new Map(),
+            resolveDiscovery: sandbox.stub(),
+            resolveExecution: sandbox.stub(),
+            _resolveDiscovery: sandbox.stub(),
+            _resolveExecution: sandbox.stub(),
+            _resolveCoverage: sandbox.stub(),
+        };
+
+        // Mock cancellation token
+        cancelationToken = {
+            isCancellationRequested: false,
+            onCancellationRequested: sandbox.stub(),
+        } as any;
+    });
+
+    teardown(() => {
+        sandbox.restore();
+    });
+
+    test('should create a root node if testRoot is undefined', () => {
+        // Arrange
+        const testTreeData: DiscoveredTestNode = {
+            path: '/test/path/root',
+            name: 'RootTest',
+            type_: 'folder',
+            id_: 'root-id',
+            children: [],
+        };
+
+        const mockRootItem: TestItem = {
+            id: '/test/path/root',
+            label: 'RootTest',
+            uri: Uri.file('/test/path/root'),
+            canResolveChildren: true,
+            tags: [RunTestTag, DebugTestTag],
+            children: {
+                add: sandbox.stub(),
+                get: sandbox.stub(),
+                delete: sandbox.stub(),
+                replace: sandbox.stub(),
+                forEach: sandbox.stub(),
+                size: 0,
+                [Symbol.iterator]: sandbox.stub(),
+            },
+        } as any;
+
+        createTestItemStub.returns(mockRootItem);
+
+        // Act
+        populateTestTree(testController, testTreeData, undefined, resultResolver, cancelationToken);
+
+        // Assert
+        assert.ok(createTestItemStub.calledOnce);
+        // Check the args manually - function uses testTreeData.path as id
+        const call = createTestItemStub.firstCall;
+        assert.strictEqual(call.args[0], '/test/path/root');
+        assert.strictEqual(call.args[1], 'RootTest');
+        // Don't check Uri.file since it's complex to compare
+        assert.ok(itemsAddStub.calledOnceWith(mockRootItem));
+        assert.strictEqual(mockRootItem.canResolveChildren, true);
+        assert.deepStrictEqual(mockRootItem.tags, [RunTestTag, DebugTestTag]);
+    });
+
+    test('should recursively add children as TestItems', () => {
+        // Arrange
+        // Tree structure:
+        // RootWorkspaceFolder (folder)
+        // └── test_example (test)
+        const testItem: DiscoveredTestItem = {
+            path: '/test/path/test.py',
+            name: 'test_example',
+            type_: 'test',
+            id_: 'test-id',
+            lineno: 10,
+            runID: 'run-id-123',
+        };
+
+        const testTreeData: DiscoveredTestNode = {
+            path: '/test/path/root',
+            name: 'RootWorkspaceFolder',
+            type_: 'folder',
+            id_: 'root-id',
+            children: [testItem],
+        };
+
+        const childrenAddStub = sandbox.stub();
+        const mockRootItem: TestItem = {
+            id: 'root-id',
+            children: {
+                add: childrenAddStub,
+            },
+        } as any;
+
+        const mockTestItem: TestItem = {
+            id: 'test-id',
+            label: 'test_example',
+            uri: Uri.file('/test/path/test.py'),
+            canResolveChildren: false,
+            tags: [],
+            range: undefined,
+        } as any;
+
+        createTestItemStub.returns(mockTestItem);
+
+        // Act
+        populateTestTree(testController, testTreeData, mockRootItem, resultResolver, cancelationToken);
+
+        // Assert
+        assert.ok(createTestItemStub.calledOnceWith('test-id', 'test_example', sinon.match.any));
+        assert.ok(childrenAddStub.calledOnceWith(mockTestItem));
+        assert.strictEqual(mockTestItem.canResolveChildren, false);
+        assert.deepStrictEqual(mockTestItem.tags, [RunTestTag, DebugTestTag]);
+    });
+
+    test('should create TestItem with correct range when lineno is provided', () => {
+        // Arrange
+        const testItem: DiscoveredTestItem = {
+            path: '/test/path/test.py',
+            name: 'test_example',
+            type_: 'test',
+            id_: 'test-id',
+            lineno: 5,
+            runID: 'run-id-123',
+        };
+
+        const testTreeData: DiscoveredTestNode = {
+            path: '/test/path/root',
+            name: 'RootTest',
+            type_: 'folder',
+            id_: 'root-id',
+            children: [testItem],
+        };
+
+        const mockRootItem: TestItem = {
+            children: { add: sandbox.stub() },
+        } as any;
+
+        const mockTestItem: TestItem = {
+            tags: [],
+            range: undefined,
+        } as any;
+
+        createTestItemStub.returns(mockTestItem);
+
+        // Act
+        populateTestTree(testController, testTreeData, mockRootItem, resultResolver, cancelationToken);
+
+        // Assert
+        const expectedRange = new Range(new Position(4, 0), new Position(5, 0));
+        assert.deepStrictEqual(mockTestItem.range, expectedRange);
+    });
+
+    test('should handle lineno = 0 correctly', () => {
+        // Arrange
+        const testItem: DiscoveredTestItem = {
+            path: '/test/path/test.py',
+            name: 'test_example',
+            type_: 'test',
+            id_: 'test-id',
+            lineno: '0',
+            runID: 'run-id-123',
+        };
+
+        const testTreeData: DiscoveredTestNode = {
+            path: '/test/path/root',
+            name: 'RootTest',
+            type_: 'folder',
+            id_: 'root-id',
+            children: [testItem],
+        };
+
+        const mockRootItem: TestItem = {
+            children: { add: sandbox.stub() },
+        } as any;
+
+        const mockTestItem: TestItem = {
+            tags: [],
+            range: undefined,
+        } as any;
+
+        createTestItemStub.returns(mockTestItem);
+
+        // Act
+        populateTestTree(testController, testTreeData, mockRootItem, resultResolver, cancelationToken);
+
+        // Assert- if lineno is '0', range should be defined but at the top
+        const expectedRange = new Range(new Position(0, 0), new Position(0, 0));
+
+        assert.deepStrictEqual(mockTestItem.range, expectedRange);
+    });
+
+    test('should update resultResolver mappings correctly for test items', () => {
+        // Arrange
+        const testItem: DiscoveredTestItem = {
+            path: '/test/path/test.py',
+            name: 'test_example',
+            type_: 'test',
+            id_: 'test-id',
+            lineno: 10,
+            runID: 'run-id-123',
+        };
+
+        const testTreeData: DiscoveredTestNode = {
+            path: '/test/path/root',
+            name: 'RootTest',
+            type_: 'folder',
+            id_: 'root-id',
+            children: [testItem],
+        };
+
+        const mockRootItem: TestItem = {
+            children: { add: sandbox.stub() },
+        } as any;
+
+        const mockTestItem: TestItem = {
+            id: 'test-id',
+            tags: [],
+        } as any;
+
+        createTestItemStub.returns(mockTestItem);
+
+        // Act
+        populateTestTree(testController, testTreeData, mockRootItem, resultResolver, cancelationToken);
+
+        // Assert
+        assert.strictEqual(resultResolver.runIdToTestItem.get('run-id-123'), mockTestItem);
+        assert.strictEqual(resultResolver.runIdToVSid.get('run-id-123'), 'test-id');
+        assert.strictEqual(resultResolver.vsIdToRunId.get('test-id'), 'run-id-123');
+    });
+
+    test('should create nodes for non-leaf items and recurse', () => {
+        // Arrange
+        // Tree structure:
+        // RootTest (folder)
+        // └── NestedFolder (folder)
+        //     └── nested_test (test)
+        const nestedTestItem: DiscoveredTestItem = {
+            path: '/test/path/nested_test.py',
+            name: 'nested_test',
+            type_: 'test',
+            id_: 'nested-test-id',
+            lineno: 5,
+            runID: 'nested-run-id',
+        };
+
+        const nestedNode: DiscoveredTestNode = {
+            path: '/test/path/nested',
+            name: 'NestedFolder',
+            type_: 'folder',
+            id_: 'nested-id',
+            children: [nestedTestItem],
+        };
+
+        const testTreeData: DiscoveredTestNode = {
+            path: '/test/path/root',
+            name: 'RootTest',
+            type_: 'folder',
+            id_: 'root-id',
+            children: [nestedNode],
+        };
+
+        const rootChildrenAddStub = sandbox.stub();
+        const mockRootItem: TestItem = {
+            children: { add: rootChildrenAddStub },
+        } as any;
+
+        const nestedChildrenAddStub = sandbox.stub();
+        const mockNestedNode: TestItem = {
+            id: 'nested-id',
+            canResolveChildren: true,
+            tags: [],
+            children: { add: nestedChildrenAddStub },
+        } as any;
+
+        const mockNestedTestItem: TestItem = {
+            id: 'nested-test-id',
+            tags: [],
+        } as any;
+
+        createTestItemStub.onFirstCall().returns(mockNestedNode);
+        createTestItemStub.onSecondCall().returns(mockNestedTestItem);
+
+        // Act
+        populateTestTree(testController, testTreeData, mockRootItem, resultResolver, cancelationToken);
+
+        // Assert
+        // Should create nested node - uses child.id_ for non-leaf nodes
+        assert.ok(createTestItemStub.calledWith('nested-id', 'NestedFolder', sinon.match.any));
+        assert.ok(rootChildrenAddStub.calledWith(mockNestedNode));
+        assert.strictEqual(mockNestedNode.canResolveChildren, true);
+        assert.deepStrictEqual(mockNestedNode.tags, [RunTestTag, DebugTestTag]);
+
+        // Should create nested test item - uses child.id_ for test items too
+        assert.ok(createTestItemStub.calledWith('nested-test-id', 'nested_test', sinon.match.any));
+        assert.ok(nestedChildrenAddStub.calledWith(mockNestedTestItem));
+    });
+
+    test('should reuse existing nodes when they already exist', () => {
+        // Arrange
+        // Tree structure:
+        // RootTest (folder)
+        // └── ExistingFolder (folder, already exists)
+        //     └── test_example (test)
+        const testItem: DiscoveredTestItem = {
+            path: '/test/path/test.py',
+            name: 'test_example',
+            type_: 'test',
+            id_: 'test-id',
+            lineno: 10,
+            runID: 'run-id-123',
+        };
+
+        const nestedNode: DiscoveredTestNode = {
+            path: '/test/path/existing',
+            name: 'ExistingFolder',
+            type_: 'folder',
+            id_: 'existing-id',
+            children: [testItem],
+        };
+
+        const testTreeData: DiscoveredTestNode = {
+            path: '/test/path/root',
+            name: 'RootTest',
+            type_: 'folder',
+            id_: 'root-id',
+            children: [nestedNode],
+        };
+
+        const rootChildrenAddStub = sandbox.stub();
+        const mockRootItem: TestItem = {
+            children: { add: rootChildrenAddStub },
+        } as any;
+
+        const existingChildrenAddStub = sandbox.stub();
+        const existingNode: TestItem = {
+            id: 'existing-id',
+            children: { add: existingChildrenAddStub },
+        } as any;
+
+        const mockTestItem: TestItem = {
+            tags: [],
+        } as any;
+
+        // Mock existing node in testController.items
+        itemsGetStub.withArgs('/test/path/existing').returns(existingNode);
+        createTestItemStub.returns(mockTestItem);
+
+        // Act
+        populateTestTree(testController, testTreeData, mockRootItem, resultResolver, cancelationToken);
+
+        // Assert
+        // Should not create a new node, should reuse existing one
+        assert.ok(createTestItemStub.calledOnceWith('test-id', 'test_example', sinon.match.any));
+        // Should not create a new node for the existing folder
+        assert.ok(createTestItemStub.neverCalledWith('existing-id', 'ExistingFolder', sinon.match.any));
+        assert.ok(existingChildrenAddStub.calledWith(mockTestItem));
+        // Should not add existing node to root children again
+        assert.ok(rootChildrenAddStub.notCalled);
+    });
+
+    test('should respect cancellation token and stop processing', () => {
+        // Arrange
+        const testItem1: DiscoveredTestItem = {
+            path: '/test/path/test1.py',
+            name: 'test1',
+            type_: 'test',
+            id_: 'test1-id',
+            lineno: 10,
+            runID: 'run-id-1',
+        };
+
+        const testItem2: DiscoveredTestItem = {
+            path: '/test/path/test2.py',
+            name: 'test2',
+            type_: 'test',
+            id_: 'test2-id',
+            lineno: 20,
+            runID: 'run-id-2',
+        };
+
+        const testTreeData: DiscoveredTestNode = {
+            path: '/test/path/root',
+            name: 'RootTest',
+            type_: 'folder',
+            id_: 'root-id',
+            children: [testItem1, testItem2],
+        };
+
+        const rootChildrenAddStub = sandbox.stub();
+        const mockRootItem: TestItem = {
+            children: { add: rootChildrenAddStub },
+        } as any;
+
+        // Set cancellation token to be cancelled
+        const cancelledToken = {
+            isCancellationRequested: true,
+            onCancellationRequested: sandbox.stub(),
+        } as any;
+
+        // Act
+        populateTestTree(testController, testTreeData, mockRootItem, resultResolver, cancelledToken);
+
+        // Assert - no test items should be created when cancelled
+        assert.ok(createTestItemStub.notCalled);
+        assert.ok(rootChildrenAddStub.notCalled);
+        assert.strictEqual(resultResolver.runIdToTestItem.size, 0);
+    });
+
+    test('should handle empty children array gracefully', () => {
+        // Arrange
+        const testTreeData: DiscoveredTestNode = {
+            path: '/test/path/root',
+            name: 'RootTest',
+            type_: 'folder',
+            id_: 'root-id',
+            children: [],
+        };
+
+        const rootChildrenAddStub = sandbox.stub();
+        const mockRootItem: TestItem = {
+            children: { add: rootChildrenAddStub },
+        } as any;
+
+        // Act
+        populateTestTree(testController, testTreeData, mockRootItem, resultResolver, cancelationToken);
+
+        // Assert - should complete without errors
+        assert.ok(createTestItemStub.notCalled);
+        assert.ok(rootChildrenAddStub.notCalled);
+    });
+
+    test('should add correct tags to all created items', () => {
+        // Arrange
+        // Tree structure:
+        // RootTest (folder)
+        // └── NestedFolder (folder)
+        //     └── test_example (test)
+        const testItem: DiscoveredTestItem = {
+            path: '/test/path/test.py',
+            name: 'test_example',
+            type_: 'test',
+            id_: 'test-id',
+            lineno: 10,
+            runID: 'run-id-123',
+        };
+
+        const nestedNode: DiscoveredTestNode = {
+            path: '/test/path/nested',
+            name: 'NestedFolder',
+            type_: 'folder',
+            id_: 'nested-id',
+            children: [testItem],
+        };
+
+        const testTreeData: DiscoveredTestNode = {
+            path: '/test/path/root',
+            name: 'RootTest',
+            type_: 'folder',
+            id_: 'root-id',
+            children: [nestedNode],
+        };
+
+        const mockRootItem: TestItem = {
+            id: 'root-id',
+            tags: [],
+            canResolveChildren: true,
+            children: { add: sandbox.stub() },
+        } as any;
+
+        const mockNestedNode: TestItem = {
+            id: 'nested-id',
+            tags: [],
+            canResolveChildren: true,
+            children: { add: sandbox.stub() },
+        } as any;
+
+        const mockTestItem: TestItem = {
+            id: 'test-id',
+            tags: [],
+            canResolveChildren: false,
+        } as any;
+
+        createTestItemStub.onCall(0).returns(mockRootItem);
+        createTestItemStub.onCall(1).returns(mockNestedNode);
+        createTestItemStub.onCall(2).returns(mockTestItem);
+
+        // Act
+        populateTestTree(testController, testTreeData, undefined, resultResolver, cancelationToken);
+
+        // Assert - All items should have RunTestTag and DebugTestTag
+        assert.deepStrictEqual(mockRootItem.tags, [RunTestTag, DebugTestTag]);
+        assert.deepStrictEqual(mockNestedNode.tags, [RunTestTag, DebugTestTag]);
+        assert.deepStrictEqual(mockTestItem.tags, [RunTestTag, DebugTestTag]);
+    });
+    test('should handle a test node with no lineno property', () => {
+        // Arrange
+        // Tree structure:
+        // RootTest (folder)
+        // └── test_without_lineno (test, no lineno)
+        const testItem = {
+            path: '/test/path/test.py',
+            name: 'test_without_lineno',
+            type_: 'test',
+            id_: 'test-no-lineno-id',
+            runID: 'run-id-no-lineno',
+        } as DiscoveredTestItem;
+
+        const testTreeData: DiscoveredTestNode = {
+            path: '/test/path/root',
+            name: 'RootTest',
+            type_: 'folder',
+            id_: 'root-id',
+            children: [testItem],
+        };
+
+        const childrenAddStub = sandbox.stub();
+        const mockRootItem: TestItem = {
+            id: 'root-id',
+            children: {
+                add: childrenAddStub,
+            },
+        } as any;
+
+        const mockTestItem: TestItem = {
+            id: 'test-no-lineno-id',
+            label: 'test_without_lineno',
+            uri: Uri.file('/test/path/test.py'),
+            canResolveChildren: false,
+            tags: [],
+            range: undefined,
+        } as any;
+
+        createTestItemStub.returns(mockTestItem);
+
+        // Act
+        populateTestTree(testController, testTreeData, mockRootItem, resultResolver, cancelationToken);
+
+        // Assert
+        assert.ok(createTestItemStub.calledOnceWith('test-no-lineno-id', 'test_without_lineno', sinon.match.any));
+        assert.ok(childrenAddStub.calledOnceWith(mockTestItem));
+        // range is undefined since lineno is not provided
+        assert.strictEqual(mockTestItem.range, undefined);
+        assert.deepStrictEqual(mockTestItem.tags, [RunTestTag, DebugTestTag]);
+    });
+
+    test('should handle a node with multiple children', () => {
+        // Arrange
+        // Tree structure:
+        // RootTest (folder)
+        // ├── test_one (test)
+        // └── test_two (test)
+        const testItem1: DiscoveredTestItem = {
+            path: '/test/path/test1.py',
+            name: 'test_one',
+            type_: 'test',
+            id_: 'test-one-id',
+            lineno: 3,
+            runID: 'run-id-one',
+        };
+        const testItem2: DiscoveredTestItem = {
+            path: '/test/path/test2.py',
+            name: 'test_two',
+            type_: 'test',
+            id_: 'test-two-id',
+            lineno: 7,
+            runID: 'run-id-two',
+        };
+
+        const testTreeData: DiscoveredTestNode = {
+            path: '/test/path/root',
+            name: 'RootTest',
+            type_: 'folder',
+            id_: 'root-id',
+            children: [testItem1, testItem2],
+        };
+
+        const childrenAddStub = sandbox.stub();
+        const mockRootItem: TestItem = {
+            id: 'root-id',
+            children: {
+                add: childrenAddStub,
+            },
+        } as any;
+
+        const mockTestItem1: TestItem = {
+            id: 'test-one-id',
+            label: 'test_one',
+            uri: Uri.file('/test/path/test1.py'),
+            canResolveChildren: false,
+            tags: [],
+            range: new Range(new Position(2, 0), new Position(3, 0)),
+        } as any;
+        const mockTestItem2: TestItem = {
+            id: 'test-two-id',
+            label: 'test_two',
+            uri: Uri.file('/test/path/test2.py'),
+            canResolveChildren: false,
+            tags: [],
+            range: new Range(new Position(6, 0), new Position(7, 0)),
+        } as any;
+
+        createTestItemStub.onFirstCall().returns(mockTestItem1);
+        createTestItemStub.onSecondCall().returns(mockTestItem2);
+
+        // Act
+        populateTestTree(testController, testTreeData, mockRootItem, resultResolver, cancelationToken);
+
+        // Assert
+        assert.ok(createTestItemStub.calledWith('test-one-id', 'test_one', sinon.match.any));
+        assert.ok(createTestItemStub.calledWith('test-two-id', 'test_two', sinon.match.any));
+        // two test items called with mockRootItem's method childrenAddStub
+        assert.strictEqual(childrenAddStub.callCount, 2);
+        assert.deepStrictEqual(mockTestItem1.tags, [RunTestTag, DebugTestTag]);
+        assert.deepStrictEqual(mockTestItem2.tags, [RunTestTag, DebugTestTag]);
+        assert.deepStrictEqual(mockTestItem1.range, new Range(new Position(2, 0), new Position(3, 0)));
+        assert.deepStrictEqual(mockTestItem2.range, new Range(new Position(6, 0), new Position(7, 0)));
+    });
+});

From aff035a371ac519a80c398064322c9fa9c52a4f9 Mon Sep 17 00:00:00 2001
From: Anthony Kim <62267334+anthonykim1@users.noreply.github.com>
Date: Mon, 14 Jul 2025 11:52:26 -0700
Subject: [PATCH 033/178] Return early in activate from env var collection
 (#25286)

Resolves: https://github.com/microsoft/vscode-python/issues/25275
https://github.com/microsoft/vscode-python/issues/25284
It seems like python env var experiment is interfering when env
extension is being used.
We should not implicit activate with env var experiment if environment
extension is installed and being used.

---------

Co-authored-by: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
---
 src/client/terminals/envCollectionActivation/service.ts | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/client/terminals/envCollectionActivation/service.ts b/src/client/terminals/envCollectionActivation/service.ts
index bd2ce1c6f717..2ce8d5d5d86a 100644
--- a/src/client/terminals/envCollectionActivation/service.ts
+++ b/src/client/terminals/envCollectionActivation/service.ts
@@ -97,6 +97,14 @@ export class TerminalEnvVarCollectionService implements IExtensionActivationServ
 
     public async activate(resource: Resource): Promise<void> {
         try {
+            if (useEnvExtension()) {
+                traceVerbose('Ignoring environment variable experiment since env extension is being used');
+                this.context.environmentVariableCollection.clear();
+                // Needed for shell integration
+                await registerPythonStartup(this.context);
+                return;
+            }
+
             if (!inTerminalEnvVarExperiment(this.experimentService)) {
                 this.context.environmentVariableCollection.clear();
                 await this.handleMicroVenv(resource);

From 97741300fb96c106cab57a3d53dfab0abf158efb Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Mon, 14 Jul 2025 12:08:46 -0700
Subject: [PATCH 034/178] fix: use latest pet (#25287)

---
 build/azure-pipeline.stable.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build/azure-pipeline.stable.yml b/build/azure-pipeline.stable.yml
index 11de6b0806d4..37c63cf067fb 100644
--- a/build/azure-pipeline.stable.yml
+++ b/build/azure-pipeline.stable.yml
@@ -128,7 +128,7 @@ extends:
             project: 'Monaco'
             definition: 593
             buildVersionToDownload: 'latestFromBranch'
-            branchName: 'refs/heads/release/2025.8'
+            branchName: 'refs/heads/release/2025.10'
             targetPath: '$(Build.SourcesDirectory)/python-env-tools/bin'
             artifactName: 'bin-$(buildTarget)'
             itemPattern: |

From ba56b217b2c6e24aba02defd2c142f12489f4bf3 Mon Sep 17 00:00:00 2001
From: Anthony Kim <62267334+anthonykim1@users.noreply.github.com>
Date: Thu, 17 Jul 2025 16:07:43 -0700
Subject: [PATCH 035/178] Resolve REPL regression on indentation, disable
 PyREPL only when shell integration is enabled (#25296)

Resolves: https://github.com/microsoft/vscode-python/issues/25295
https://github.com/microsoft/vscode-python/issues/25240
https://github.com/microsoft/vscode-python/issues/25242
---
 package.nls.json                                     |  2 +-
 python_files/pythonrc.py                             |  3 +--
 src/client/common/configSettings.ts                  |  4 +++-
 src/client/common/types.ts                           |  4 +++-
 src/client/extensionActivation.ts                    |  3 +--
 src/client/terminals/codeExecution/helper.ts         | 12 ++++++++++++
 src/client/terminals/pythonStartup.ts                |  8 +++-----
 .../terminals/shellIntegration/pythonStartup.test.ts |  7 ++++---
 8 files changed, 28 insertions(+), 15 deletions(-)

diff --git a/package.nls.json b/package.nls.json
index 37a9ce435f2f..57f2ed95b2c0 100644
--- a/package.nls.json
+++ b/package.nls.json
@@ -73,7 +73,7 @@
     "python.tensorBoard.logDirectory.description": "Set this setting to your preferred TensorBoard log directory to skip log directory prompt when starting TensorBoard.",
     "python.tensorBoard.logDirectory.markdownDeprecationMessage": "Tensorboard support has been moved to the extension [Tensorboard extension](https://marketplace.visualstudio.com/items?itemName=ms-toolsai.tensorboard). Instead use the setting `tensorBoard.logDirectory`.",
     "python.tensorBoard.logDirectory.deprecationMessage": "Tensorboard support has been moved to the extension Tensorboard extension. Instead use the setting `tensorBoard.logDirectory`.",
-    "python.terminal.shellIntegration.enabled.description": "Enable [shell integration](https://code.visualstudio.com/docs/terminal/shell-integration) for the terminals running python. Shell integration enhances the terminal experience by enabling command decorations, run recent command, improving accessibility among other things.",
+    "python.terminal.shellIntegration.enabled.description": "Enable [shell integration](https://code.visualstudio.com/docs/terminal/shell-integration) for the terminals running python. Shell integration enhances the terminal experience by enabling command decorations, run recent command, improving accessibility among other things. Note: PyREPL (available in Python 3.13+) is automatically disabled when shell integration is enabled to avoid cursor indentation issues.",
     "python.terminal.activateEnvInCurrentTerminal.description": "Activate Python Environment in the current Terminal on load of the Extension.",
     "python.terminal.activateEnvironment.description": "Activate Python Environment in all Terminals created.",
     "python.terminal.executeInFileDir.description": "When executing a file in the terminal, whether to use execute in the file's directory, instead of the current open folder.",
diff --git a/python_files/pythonrc.py b/python_files/pythonrc.py
index afd32520cf01..005b06bcdd15 100644
--- a/python_files/pythonrc.py
+++ b/python_files/pythonrc.py
@@ -5,7 +5,6 @@
     import readline
 
 original_ps1 = ">>> "
-use_shell_integration = sys.version_info < (3, 13)
 is_wsl = "microsoft-standard-WSL" in platform.release()
 
 
@@ -75,7 +74,7 @@ def __str__(self):
         return result
 
 
-if sys.platform != "win32" and (not is_wsl) and use_shell_integration:
+if sys.platform != "win32" and (not is_wsl):
     sys.ps1 = PS1()
 
 if sys.platform == "darwin":
diff --git a/src/client/common/configSettings.ts b/src/client/common/configSettings.ts
index 634e0106fe7b..91c06d9331fd 100644
--- a/src/client/common/configSettings.ts
+++ b/src/client/common/configSettings.ts
@@ -377,7 +377,9 @@ export class PythonSettings implements IPythonSettings {
                   launchArgs: [],
                   activateEnvironment: true,
                   activateEnvInCurrentTerminal: false,
-                  enableShellIntegration: false,
+                  shellIntegration: {
+                      enabled: false,
+                  },
               };
 
         this.REPL = pythonSettings.get<IREPLSettings>('REPL')!;
diff --git a/src/client/common/types.ts b/src/client/common/types.ts
index 2cb393d89bdf..c30ad704b6c1 100644
--- a/src/client/common/types.ts
+++ b/src/client/common/types.ts
@@ -188,7 +188,9 @@ export interface ITerminalSettings {
     readonly launchArgs: string[];
     readonly activateEnvironment: boolean;
     readonly activateEnvInCurrentTerminal: boolean;
-    readonly enableShellIntegration: boolean;
+    readonly shellIntegration: {
+        enabled: boolean;
+    };
 }
 
 export interface IREPLSettings {
diff --git a/src/client/extensionActivation.ts b/src/client/extensionActivation.ts
index 8fae9d5131ff..8330d5010f7a 100644
--- a/src/client/extensionActivation.ts
+++ b/src/client/extensionActivation.ts
@@ -53,7 +53,7 @@ import { DebuggerTypeName } from './debugger/constants';
 import { StopWatch } from './common/utils/stopWatch';
 import { registerReplCommands, registerReplExecuteOnEnter, registerStartNativeReplCommand } from './repl/replCommands';
 import { registerTriggerForTerminalREPL } from './terminals/codeExecution/terminalReplWatcher';
-import { registerBasicRepl, registerPythonStartup } from './terminals/pythonStartup';
+import { registerPythonStartup } from './terminals/pythonStartup';
 import { registerPixiFeatures } from './pythonEnvironments/common/environmentManagers/pixi';
 import { registerCustomTerminalLinkProvider } from './terminals/pythonStartupLinkProvider';
 import { registerEnvExtFeatures } from './envExt/api.internal';
@@ -184,7 +184,6 @@ async function activateLegacy(ext: ExtensionState, startupStopWatch: StopWatch):
             serviceManager.get<ITerminalAutoActivation>(ITerminalAutoActivation).register();
 
             await registerPythonStartup(ext.context);
-            await registerBasicRepl(ext.context);
 
             serviceManager.get<ICodeExecutionManager>(ICodeExecutionManager).registerCommands();
 
diff --git a/src/client/terminals/codeExecution/helper.ts b/src/client/terminals/codeExecution/helper.ts
index 26ebe35aae43..4efad5ee174e 100644
--- a/src/client/terminals/codeExecution/helper.ts
+++ b/src/client/terminals/codeExecution/helper.ts
@@ -99,10 +99,12 @@ export class CodeExecutionHelper implements ICodeExecutionHelper {
             const endLineVal = activeEditor?.selection?.end.line ?? 0;
             const emptyHighlightVal = activeEditor?.selection?.isEmpty ?? true;
             let smartSendSettingsEnabledVal = true;
+            let shellIntegrationEnabled = false;
             const configuration = this.serviceContainer.get<IConfigurationService>(IConfigurationService);
             if (configuration) {
                 const pythonSettings = configuration.getSettings(this.activeResourceService.getActiveResource());
                 smartSendSettingsEnabledVal = pythonSettings.REPL.enableREPLSmartSend;
+                shellIntegrationEnabled = pythonSettings.terminal.shellIntegration.enabled;
             }
 
             const input = JSON.stringify({
@@ -125,6 +127,16 @@ export class CodeExecutionHelper implements ICodeExecutionHelper {
                 await this.moveToNextBlock(lineOffset, activeEditor);
             }
 
+            // For new _pyrepl for Python3.13+ && !shellIntegration, we need to send code via bracketed paste mode.
+            if (object.attach_bracket_paste && !shellIntegrationEnabled && _replType === ReplType.terminal) {
+                let trimmedNormalized = object.normalized.replace(/\n$/, '');
+                if (trimmedNormalized.endsWith(':\n')) {
+                    // In case where statement is unfinished via :, truncate so auto-indentation lands nicely.
+                    trimmedNormalized = trimmedNormalized.replace(/\n$/, '');
+                }
+                return `\u001b[200~${trimmedNormalized}\u001b[201~`;
+            }
+
             return parse(object.normalized);
         } catch (ex) {
             traceError(ex, 'Python: Failed to normalize code for execution in terminal');
diff --git a/src/client/terminals/pythonStartup.ts b/src/client/terminals/pythonStartup.ts
index 1a2576dce772..f0c3bf89c3b4 100644
--- a/src/client/terminals/pythonStartup.ts
+++ b/src/client/terminals/pythonStartup.ts
@@ -21,8 +21,11 @@ async function applyPythonStartupSetting(context: ExtensionContext): Promise<voi
         const sourcePath = path.join(EXTENSION_ROOT_DIR, 'python_files', 'pythonrc.py');
         await copy(Uri.file(sourcePath), destPath, { overwrite: true });
         context.environmentVariableCollection.replace('PYTHONSTARTUP', destPath.fsPath);
+        // When shell integration is  enabled, we disable PyREPL from cpython.
+        context.environmentVariableCollection.replace('PYTHON_BASIC_REPL', '1');
     } else {
         context.environmentVariableCollection.delete('PYTHONSTARTUP');
+        context.environmentVariableCollection.delete('PYTHON_BASIC_REPL');
     }
 }
 
@@ -36,8 +39,3 @@ export async function registerPythonStartup(context: ExtensionContext): Promise<
         }),
     );
 }
-
-export async function registerBasicRepl(context: ExtensionContext): Promise<void> {
-    // TODO: Configurable by setting
-    context.environmentVariableCollection.replace('PYTHON_BASIC_REPL', '1');
-}
diff --git a/src/test/terminals/shellIntegration/pythonStartup.test.ts b/src/test/terminals/shellIntegration/pythonStartup.test.ts
index 3c755adf0d9b..833a4f29e972 100644
--- a/src/test/terminals/shellIntegration/pythonStartup.test.ts
+++ b/src/test/terminals/shellIntegration/pythonStartup.test.ts
@@ -16,7 +16,7 @@ import {
 } from 'vscode';
 import { assert } from 'chai';
 import * as workspaceApis from '../../../client/common/vscodeApis/workspaceApis';
-import { registerBasicRepl, registerPythonStartup } from '../../../client/terminals/pythonStartup';
+import { registerPythonStartup } from '../../../client/terminals/pythonStartup';
 import { IExtensionContext } from '../../../client/common/types';
 import * as pythonStartupLinkProvider from '../../../client/terminals/pythonStartupLinkProvider';
 import { CustomTerminalLinkProvider } from '../../../client/terminals/pythonStartupLinkProvider';
@@ -135,8 +135,9 @@ suite('Terminal - Shell Integration with PYTHONSTARTUP', () => {
         globalEnvironmentVariableCollection.verify((c) => c.delete('PYTHONSTARTUP'), TypeMoq.Times.once());
     });
 
-    test('PYTHON_BASIC_REPL is set when registerBasicRepl is called', async () => {
-        await registerBasicRepl(context.object);
+    test('PYTHON_BASIC_REPL is set when shell integration is enabled', async () => {
+        pythonConfig.setup((p) => p.get('terminal.shellIntegration.enabled')).returns(() => true);
+        await registerPythonStartup(context.object);
         globalEnvironmentVariableCollection.verify(
             (c) => c.replace('PYTHON_BASIC_REPL', '1', TypeMoq.It.isAny()),
             TypeMoq.Times.once(),

From cce890fd47c2a3e9c2235097d0a7c932ab9fc73d Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 21 Jul 2025 09:15:33 -0700
Subject: [PATCH 036/178] Bump microvenv from 2023.5.post1 to 2025.0 (#25307)

[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=microvenv&package-manager=pip&previous-version=2023.5.post1&new-version=2025.0)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
that have been made to it
- `@dependabot merge` will merge this PR after your CI passes on it
- `@dependabot squash and merge` will squash and merge this PR after
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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 requirements.txt | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/requirements.txt b/requirements.txt
index e3563501e309..2e6b6ee07783 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -4,9 +4,9 @@ importlib-metadata==8.7.0 \
     --hash=sha256:d13b81ad223b890aa16c5471f2ac3056cf76c5f10f82d6f9292f0b415f389000 \
     --hash=sha256:e5dd1551894c77868a30651cef00984d50e1002d06942a7101d34870c5f02afd
     # via -r requirements.in
-microvenv==2023.5.post1 \
-    --hash=sha256:32c46afea874e300f69f1add0806eb0795fd02b5fb251092fba0b73c059a7d1f \
-    --hash=sha256:fd79b3dfea7860e2e84c87dd0aa8a135075f7fa2284174842b7bdeb077a0d8ac
+microvenv==2025.0 \
+    --hash=sha256:568155ec18af01c89f270d35d123ab803b09672b480c3702d15fd69e9cc5bd1e \
+    --hash=sha256:8a2568a8390a4ffb5af2f05e7642454e03b887e582d192b6316326974eab5d0f
     # via -r requirements.in
 packaging==25.0 \
     --hash=sha256:29572ef2b1f17581046b3a2227d5c611fb25ec70ca1ba8554b24b0e69331a484 \

From 583f2d3229561d2cd0f9fb38772595b15e276562 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Mon, 21 Jul 2025 09:38:15 -0700
Subject: [PATCH 037/178] bundle envs ext with stable (#25309)

reverts
https://github.com/microsoft/vscode-python/commit/8c3a49fe6ec4aabef26f10feda9452aa259811bc
which switched to only bundling with pre-release so now it is bundled
for stable and pre-release
---
 .github/actions/build-vsix/action.yml |  9 +--------
 build/azure-pipeline.pre-release.yml  |  2 +-
 gulpfile.js                           | 19 ++++++-------------
 package.json                          |  1 -
 4 files changed, 8 insertions(+), 23 deletions(-)

diff --git a/.github/actions/build-vsix/action.yml b/.github/actions/build-vsix/action.yml
index 1922f6196ee5..eaabe5141e8b 100644
--- a/.github/actions/build-vsix/action.yml
+++ b/.github/actions/build-vsix/action.yml
@@ -70,15 +70,8 @@ runs:
       shell: bash
 
     - name: Update optional extension dependencies
-      run: |
-        if [[ "${VSIX_NAME}" == *"insiders"* ]]; then
-        npm run addExtensionPackDependenciesPreRelease
-        else
-        npm run addExtensionPackDependencies
-        fi
+      run: npm run addExtensionPackDependencies
       shell: bash
-      env:
-        VSIX_NAME: ${{ inputs.vsix_name }}
 
     - name: Build Webpack
       run: |
diff --git a/build/azure-pipeline.pre-release.yml b/build/azure-pipeline.pre-release.yml
index 82c991189a82..ab087673f1e7 100644
--- a/build/azure-pipeline.pre-release.yml
+++ b/build/azure-pipeline.pre-release.yml
@@ -91,7 +91,7 @@ extends:
       - script: python ./build/update_package_file.py
         displayName: Update telemetry in package.json
 
-      - script: npm run addExtensionPackDependenciesPreRelease
+      - script: npm run addExtensionPackDependencies
         displayName: Update optional extension dependencies
 
       - script: npx gulp prePublishBundle
diff --git a/gulpfile.js b/gulpfile.js
index 3a03332c4f5c..0b919f16572a 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -93,23 +93,16 @@ gulp.task('addExtensionPackDependencies', async () => {
     await addExtensionPackDependencies();
 });
 
-// This task adds 'ms-python.vscode-python-envs' as required deps only for pre-release builds.
-gulp.task('addExtensionPackDependenciesPreRelease', async () => {
-    await buildLicense();
-    await addExtensionPackDependencies(true);
-});
-
-async function addExtensionPackDependencies(isPreRelease = false) {
+async function addExtensionPackDependencies() {
     // Update the package.json to add extension pack dependencies at build time so that
     // extension dependencies need not be installed during development
     const packageJsonContents = await fsExtra.readFile('package.json', 'utf-8');
     const packageJson = JSON.parse(packageJsonContents);
-    let deps = ['ms-python.vscode-pylance', 'ms-python.debugpy'];
-    if (isPreRelease) {
-        deps.push('ms-python.vscode-python-envs');
-    }
-    packageJson.extensionPack = deps.concat(packageJson.extensionPack ? packageJson.extensionPack : []);
-
+    packageJson.extensionPack = [
+        'ms-python.vscode-pylance',
+        'ms-python.debugpy',
+        'ms-python.vscode-python-envs',
+    ].concat(packageJson.extensionPack ? packageJson.extensionPack : []);
     // Remove potential duplicates.
     packageJson.extensionPack = packageJson.extensionPack.filter(
         (item, index) => packageJson.extensionPack.indexOf(item) === index,
diff --git a/package.json b/package.json
index b407c68caa35..226b52093b25 100644
--- a/package.json
+++ b/package.json
@@ -1689,7 +1689,6 @@
         "format-fix": "prettier --write 'src/**/*.ts' 'build/**/*.js' '.github/**/*.yml' gulpfile.js",
         "clean": "gulp clean",
         "addExtensionPackDependencies": "gulp addExtensionPackDependencies",
-        "addExtensionPackDependenciesPreRelease": "gulp addExtensionPackDependenciesPreRelease",
         "updateBuildNumber": "gulp updateBuildNumber",
         "verifyBundle": "gulp verifyBundle",
         "webpack": "webpack"

From 4f0272543f2f509fc964a12edec71ad297985dd5 Mon Sep 17 00:00:00 2001
From: Don Jayamanne <don.jayamanne@outlook.com>
Date: Fri, 25 Jul 2025 09:49:46 +1000
Subject: [PATCH 038/178] Pompt model to use tool before running any Python
 command in terminal (#25321)

For https://github.com/microsoft/vscode/issues/256114
---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 226b52093b25..66eceab34d69 100644
--- a/package.json
+++ b/package.json
@@ -1585,7 +1585,7 @@
             {
                 "name": "configure_python_environment",
                 "displayName": "Configure Python Environment",
-                "modelDescription": "This tool configures a Python environment in the given workspace. ALWAYS Use this tool to set up the user's chosen environment and ALWAYS call this tool before using any other Python related tools.",
+                "modelDescription": "This tool configures a Python environment in the given workspace. ALWAYS Use this tool to set up the user's chosen environment and ALWAYS call this tool before using any other Python related tools or running any Python command in the terminal.",
                 "userDescription": "%python.languageModelTools.configure_python_environment.userDescription%",
                 "toolReferenceName": "configurePythonEnvironment",
                 "tags": [

From 3a729b4addafb44ffb874c721fd22565e183c310 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Fri, 25 Jul 2025 18:27:17 +0000
Subject: [PATCH 039/178] Bump form-data (#25312)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps and [form-data](https://github.com/form-data/form-data). These
dependencies needed to be updated together.
Updates `form-data` from 4.0.0 to 4.0.4
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/form-data/form-data/releases">form-data's
releases</a>.</em></p>
<blockquote>
<h2>v4.0.1</h2>
<h3>Fixes</h3>
<ul>
<li>npmignore temporary build files (<a
href="https://redirect.github.com/form-data/form-data/issues/532">#532</a>)</li>
<li>move util.isArray to Array.isArray (<a
href="https://redirect.github.com/form-data/form-data/issues/564">#564</a>)</li>
</ul>
<h3>Tests</h3>
<ul>
<li>migrate from travis to GHA</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/form-data/form-data/blob/master/CHANGELOG.md">form-data's
changelog</a>.</em></p>
<blockquote>
<h2><a
href="https://github.com/form-data/form-data/compare/v4.0.3...v4.0.4">v4.0.4</a>
- 2025-07-16</h2>
<h3>Commits</h3>
<ul>
<li>[meta] add <code>auto-changelog</code> <a
href="https://github.com/form-data/form-data/commit/811f68282fab0315209d0e2d1c44b6c32ea0d479"><code>811f682</code></a></li>
<li>[Tests] handle predict-v8-randomness failures in node &lt; 17 and
node &gt; 23 <a
href="https://github.com/form-data/form-data/commit/1d11a76434d101f22fdb26b8aef8615f28b98402"><code>1d11a76</code></a></li>
<li>[Fix] Switch to using <code>crypto</code> random for boundary values
<a
href="https://github.com/form-data/form-data/commit/3d1723080e6577a66f17f163ecd345a21d8d0fd0"><code>3d17230</code></a></li>
<li>[Tests] fix linting errors <a
href="https://github.com/form-data/form-data/commit/5e340800b5f8914213e4e0378c084aae71cfd73a"><code>5e34080</code></a></li>
<li>[meta] actually ensure the readme backup isn’t published <a
href="https://github.com/form-data/form-data/commit/316c82ba93fd4985af757b771b9a1f26d3b709ef"><code>316c82b</code></a></li>
<li>[Dev Deps] update <code>@ljharb/eslint-config</code> <a
href="https://github.com/form-data/form-data/commit/58c25d76406a5b0dfdf54045cf252563f2bbda8d"><code>58c25d7</code></a></li>
<li>[meta] fix readme capitalization <a
href="https://github.com/form-data/form-data/commit/2300ca19595b0ee96431e868fe2a40db79e41c61"><code>2300ca1</code></a></li>
</ul>
<h2><a
href="https://github.com/form-data/form-data/compare/v4.0.2...v4.0.3">v4.0.3</a>
- 2025-06-05</h2>
<h3>Fixed</h3>
<ul>
<li>[Fix] <code>append</code>: avoid a crash on nullish values <a
href="https://redirect.github.com/form-data/form-data/issues/577"><code>[#577](https://github.com/form-data/form-data/issues/577)</code></a></li>
</ul>
<h3>Commits</h3>
<ul>
<li>[eslint] use a shared config <a
href="https://github.com/form-data/form-data/commit/426ba9ac440f95d1998dac9a5cd8d738043b048f"><code>426ba9a</code></a></li>
<li>[eslint] fix some spacing issues <a
href="https://github.com/form-data/form-data/commit/20941917f0e9487e68c564ebc3157e23609e2939"><code>2094191</code></a></li>
<li>[Refactor] use <code>hasown</code> <a
href="https://github.com/form-data/form-data/commit/81ab41b46fdf34f5d89d7ff30b513b0925febfaa"><code>81ab41b</code></a></li>
<li>[Fix] validate boundary type in <code>setBoundary()</code> method <a
href="https://github.com/form-data/form-data/commit/8d8e4693093519f7f18e3c597d1e8df8c493de9e"><code>8d8e469</code></a></li>
<li>[Tests] add tests to check the behavior of <code>getBoundary</code>
with non-strings <a
href="https://github.com/form-data/form-data/commit/837b8a1f7562bfb8bda74f3fc538adb7a5858995"><code>837b8a1</code></a></li>
<li>[Dev Deps] remove unused deps <a
href="https://github.com/form-data/form-data/commit/870e4e665935e701bf983a051244ab928e62d58e"><code>870e4e6</code></a></li>
<li>[meta] remove local commit hooks <a
href="https://github.com/form-data/form-data/commit/e6e83ccb545a5619ed6cd04f31d5c2f655eb633e"><code>e6e83cc</code></a></li>
<li>[Dev Deps] update <code>eslint</code> <a
href="https://github.com/form-data/form-data/commit/4066fd6f65992b62fa324a6474a9292a4f88c916"><code>4066fd6</code></a></li>
<li>[meta] fix scripts to use prepublishOnly <a
href="https://github.com/form-data/form-data/commit/c4bbb13c0ef669916657bc129341301b1d331d75"><code>c4bbb13</code></a></li>
</ul>
<h2><a
href="https://github.com/form-data/form-data/compare/v4.0.1...v4.0.2">v4.0.2</a>
- 2025-02-14</h2>
<h3>Merged</h3>
<ul>
<li>[Fix] set <code>Symbol.toStringTag</code> when available <a
href="https://redirect.github.com/form-data/form-data/pull/573"><code>[#573](https://github.com/form-data/form-data/issues/573)</code></a></li>
<li>[Fix] set <code>Symbol.toStringTag</code> when available <a
href="https://redirect.github.com/form-data/form-data/pull/573"><code>[#573](https://github.com/form-data/form-data/issues/573)</code></a></li>
<li>fix (npmignore): ignore temporary build files <a
href="https://redirect.github.com/form-data/form-data/pull/532"><code>[#532](https://github.com/form-data/form-data/issues/532)</code></a></li>
<li>fix (npmignore): ignore temporary build files <a
href="https://redirect.github.com/form-data/form-data/pull/532"><code>[#532](https://github.com/form-data/form-data/issues/532)</code></a></li>
</ul>
<h3>Fixed</h3>
<ul>
<li>[Fix] set <code>Symbol.toStringTag</code> when available (<a
href="https://redirect.github.com/form-data/form-data/issues/573">#573</a>)
<a
href="https://redirect.github.com/form-data/form-data/issues/396"><code>[#396](https://github.com/form-data/form-data/issues/396)</code></a></li>
<li>[Fix] set <code>Symbol.toStringTag</code> when available (<a
href="https://redirect.github.com/form-data/form-data/issues/573">#573</a>)
<a
href="https://redirect.github.com/form-data/form-data/issues/396"><code>[#396](https://github.com/form-data/form-data/issues/396)</code></a></li>
<li>[Fix] set <code>Symbol.toStringTag</code> when available <a
href="https://redirect.github.com/form-data/form-data/issues/396"><code>[#396](https://github.com/form-data/form-data/issues/396)</code></a></li>
</ul>
<h3>Commits</h3>
<ul>
<li>Merge tags v2.5.3 and v3.0.3 <a
href="https://github.com/form-data/form-data/commit/92613b9208556eb4ebc482fdf599fae111626fb6"><code>92613b9</code></a></li>
<li>[Tests] migrate from travis to GHA <a
href="https://github.com/form-data/form-data/commit/806eda77740e6e3c67c7815afb216f2e1f187ba5"><code>806eda7</code></a></li>
<li>[Tests] migrate from travis to GHA <a
href="https://github.com/form-data/form-data/commit/8fdb3bc6b5d001f8909a9fca391d1d1d97ef1d79"><code>8fdb3bc</code></a></li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/form-data/form-data/commit/41996f5ac73a867046d48512cab62e64fc846dad"><code>41996f5</code></a>
v4.0.4</li>
<li><a
href="https://github.com/form-data/form-data/commit/316c82ba93fd4985af757b771b9a1f26d3b709ef"><code>316c82b</code></a>
[meta] actually ensure the readme backup isn’t published</li>
<li><a
href="https://github.com/form-data/form-data/commit/2300ca19595b0ee96431e868fe2a40db79e41c61"><code>2300ca1</code></a>
[meta] fix readme capitalization</li>
<li><a
href="https://github.com/form-data/form-data/commit/811f68282fab0315209d0e2d1c44b6c32ea0d479"><code>811f682</code></a>
[meta] add <code>auto-changelog</code></li>
<li><a
href="https://github.com/form-data/form-data/commit/5e340800b5f8914213e4e0378c084aae71cfd73a"><code>5e34080</code></a>
[Tests] fix linting errors</li>
<li><a
href="https://github.com/form-data/form-data/commit/1d11a76434d101f22fdb26b8aef8615f28b98402"><code>1d11a76</code></a>
[Tests] handle predict-v8-randomness failures in node &lt; 17 and node
&gt; 23</li>
<li><a
href="https://github.com/form-data/form-data/commit/58c25d76406a5b0dfdf54045cf252563f2bbda8d"><code>58c25d7</code></a>
[Dev Deps] update <code>@ljharb/eslint-config</code></li>
<li><a
href="https://github.com/form-data/form-data/commit/3d1723080e6577a66f17f163ecd345a21d8d0fd0"><code>3d17230</code></a>
[Fix] Switch to using <code>crypto</code> random for boundary
values</li>
<li><a
href="https://github.com/form-data/form-data/commit/d8d67dc8ac79285154edf7d3f57dbab593b9a146"><code>d8d67dc</code></a>
v4.0.3</li>
<li><a
href="https://github.com/form-data/form-data/commit/e6e83ccb545a5619ed6cd04f31d5c2f655eb633e"><code>e6e83cc</code></a>
[meta] remove local commit hooks</li>
<li>Additional commits viewable in <a
href="https://github.com/form-data/form-data/compare/v4.0.0...v4.0.4">compare
view</a></li>
</ul>
</details>
<details>
<summary>Maintainer changes</summary>
<p>This version was pushed to npm by <a
href="https://www.npmjs.com/~ljharb">ljharb</a>, a new releaser for
form-data since your current version.</p>
</details>
<br />

Updates `form-data` from 2.5.1 to 4.0.4
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/form-data/form-data/releases">form-data's
releases</a>.</em></p>
<blockquote>
<h2>v4.0.1</h2>
<h3>Fixes</h3>
<ul>
<li>npmignore temporary build files (<a
href="https://redirect.github.com/form-data/form-data/issues/532">#532</a>)</li>
<li>move util.isArray to Array.isArray (<a
href="https://redirect.github.com/form-data/form-data/issues/564">#564</a>)</li>
</ul>
<h3>Tests</h3>
<ul>
<li>migrate from travis to GHA</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/form-data/form-data/blob/master/CHANGELOG.md">form-data's
changelog</a>.</em></p>
<blockquote>
<h2><a
href="https://github.com/form-data/form-data/compare/v4.0.3...v4.0.4">v4.0.4</a>
- 2025-07-16</h2>
<h3>Commits</h3>
<ul>
<li>[meta] add <code>auto-changelog</code> <a
href="https://github.com/form-data/form-data/commit/811f68282fab0315209d0e2d1c44b6c32ea0d479"><code>811f682</code></a></li>
<li>[Tests] handle predict-v8-randomness failures in node &lt; 17 and
node &gt; 23 <a
href="https://github.com/form-data/form-data/commit/1d11a76434d101f22fdb26b8aef8615f28b98402"><code>1d11a76</code></a></li>
<li>[Fix] Switch to using <code>crypto</code> random for boundary values
<a
href="https://github.com/form-data/form-data/commit/3d1723080e6577a66f17f163ecd345a21d8d0fd0"><code>3d17230</code></a></li>
<li>[Tests] fix linting errors <a
href="https://github.com/form-data/form-data/commit/5e340800b5f8914213e4e0378c084aae71cfd73a"><code>5e34080</code></a></li>
<li>[meta] actually ensure the readme backup isn’t published <a
href="https://github.com/form-data/form-data/commit/316c82ba93fd4985af757b771b9a1f26d3b709ef"><code>316c82b</code></a></li>
<li>[Dev Deps] update <code>@ljharb/eslint-config</code> <a
href="https://github.com/form-data/form-data/commit/58c25d76406a5b0dfdf54045cf252563f2bbda8d"><code>58c25d7</code></a></li>
<li>[meta] fix readme capitalization <a
href="https://github.com/form-data/form-data/commit/2300ca19595b0ee96431e868fe2a40db79e41c61"><code>2300ca1</code></a></li>
</ul>
<h2><a
href="https://github.com/form-data/form-data/compare/v4.0.2...v4.0.3">v4.0.3</a>
- 2025-06-05</h2>
<h3>Fixed</h3>
<ul>
<li>[Fix] <code>append</code>: avoid a crash on nullish values <a
href="https://redirect.github.com/form-data/form-data/issues/577"><code>[#577](https://github.com/form-data/form-data/issues/577)</code></a></li>
</ul>
<h3>Commits</h3>
<ul>
<li>[eslint] use a shared config <a
href="https://github.com/form-data/form-data/commit/426ba9ac440f95d1998dac9a5cd8d738043b048f"><code>426ba9a</code></a></li>
<li>[eslint] fix some spacing issues <a
href="https://github.com/form-data/form-data/commit/20941917f0e9487e68c564ebc3157e23609e2939"><code>2094191</code></a></li>
<li>[Refactor] use <code>hasown</code> <a
href="https://github.com/form-data/form-data/commit/81ab41b46fdf34f5d89d7ff30b513b0925febfaa"><code>81ab41b</code></a></li>
<li>[Fix] validate boundary type in <code>setBoundary()</code> method <a
href="https://github.com/form-data/form-data/commit/8d8e4693093519f7f18e3c597d1e8df8c493de9e"><code>8d8e469</code></a></li>
<li>[Tests] add tests to check the behavior of <code>getBoundary</code>
with non-strings <a
href="https://github.com/form-data/form-data/commit/837b8a1f7562bfb8bda74f3fc538adb7a5858995"><code>837b8a1</code></a></li>
<li>[Dev Deps] remove unused deps <a
href="https://github.com/form-data/form-data/commit/870e4e665935e701bf983a051244ab928e62d58e"><code>870e4e6</code></a></li>
<li>[meta] remove local commit hooks <a
href="https://github.com/form-data/form-data/commit/e6e83ccb545a5619ed6cd04f31d5c2f655eb633e"><code>e6e83cc</code></a></li>
<li>[Dev Deps] update <code>eslint</code> <a
href="https://github.com/form-data/form-data/commit/4066fd6f65992b62fa324a6474a9292a4f88c916"><code>4066fd6</code></a></li>
<li>[meta] fix scripts to use prepublishOnly <a
href="https://github.com/form-data/form-data/commit/c4bbb13c0ef669916657bc129341301b1d331d75"><code>c4bbb13</code></a></li>
</ul>
<h2><a
href="https://github.com/form-data/form-data/compare/v4.0.1...v4.0.2">v4.0.2</a>
- 2025-02-14</h2>
<h3>Merged</h3>
<ul>
<li>[Fix] set <code>Symbol.toStringTag</code> when available <a
href="https://redirect.github.com/form-data/form-data/pull/573"><code>[#573](https://github.com/form-data/form-data/issues/573)</code></a></li>
<li>[Fix] set <code>Symbol.toStringTag</code> when available <a
href="https://redirect.github.com/form-data/form-data/pull/573"><code>[#573](https://github.com/form-data/form-data/issues/573)</code></a></li>
<li>fix (npmignore): ignore temporary build files <a
href="https://redirect.github.com/form-data/form-data/pull/532"><code>[#532](https://github.com/form-data/form-data/issues/532)</code></a></li>
<li>fix (npmignore): ignore temporary build files <a
href="https://redirect.github.com/form-data/form-data/pull/532"><code>[#532](https://github.com/form-data/form-data/issues/532)</code></a></li>
</ul>
<h3>Fixed</h3>
<ul>
<li>[Fix] set <code>Symbol.toStringTag</code> when available (<a
href="https://redirect.github.com/form-data/form-data/issues/573">#573</a>)
<a
href="https://redirect.github.com/form-data/form-data/issues/396"><code>[#396](https://github.com/form-data/form-data/issues/396)</code></a></li>
<li>[Fix] set <code>Symbol.toStringTag</code> when available (<a
href="https://redirect.github.com/form-data/form-data/issues/573">#573</a>)
<a
href="https://redirect.github.com/form-data/form-data/issues/396"><code>[#396](https://github.com/form-data/form-data/issues/396)</code></a></li>
<li>[Fix] set <code>Symbol.toStringTag</code> when available <a
href="https://redirect.github.com/form-data/form-data/issues/396"><code>[#396](https://github.com/form-data/form-data/issues/396)</code></a></li>
</ul>
<h3>Commits</h3>
<ul>
<li>Merge tags v2.5.3 and v3.0.3 <a
href="https://github.com/form-data/form-data/commit/92613b9208556eb4ebc482fdf599fae111626fb6"><code>92613b9</code></a></li>
<li>[Tests] migrate from travis to GHA <a
href="https://github.com/form-data/form-data/commit/806eda77740e6e3c67c7815afb216f2e1f187ba5"><code>806eda7</code></a></li>
<li>[Tests] migrate from travis to GHA <a
href="https://github.com/form-data/form-data/commit/8fdb3bc6b5d001f8909a9fca391d1d1d97ef1d79"><code>8fdb3bc</code></a></li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/form-data/form-data/commit/41996f5ac73a867046d48512cab62e64fc846dad"><code>41996f5</code></a>
v4.0.4</li>
<li><a
href="https://github.com/form-data/form-data/commit/316c82ba93fd4985af757b771b9a1f26d3b709ef"><code>316c82b</code></a>
[meta] actually ensure the readme backup isn’t published</li>
<li><a
href="https://github.com/form-data/form-data/commit/2300ca19595b0ee96431e868fe2a40db79e41c61"><code>2300ca1</code></a>
[meta] fix readme capitalization</li>
<li><a
href="https://github.com/form-data/form-data/commit/811f68282fab0315209d0e2d1c44b6c32ea0d479"><code>811f682</code></a>
[meta] add <code>auto-changelog</code></li>
<li><a
href="https://github.com/form-data/form-data/commit/5e340800b5f8914213e4e0378c084aae71cfd73a"><code>5e34080</code></a>
[Tests] fix linting errors</li>
<li><a
href="https://github.com/form-data/form-data/commit/1d11a76434d101f22fdb26b8aef8615f28b98402"><code>1d11a76</code></a>
[Tests] handle predict-v8-randomness failures in node &lt; 17 and node
&gt; 23</li>
<li><a
href="https://github.com/form-data/form-data/commit/58c25d76406a5b0dfdf54045cf252563f2bbda8d"><code>58c25d7</code></a>
[Dev Deps] update <code>@ljharb/eslint-config</code></li>
<li><a
href="https://github.com/form-data/form-data/commit/3d1723080e6577a66f17f163ecd345a21d8d0fd0"><code>3d17230</code></a>
[Fix] Switch to using <code>crypto</code> random for boundary
values</li>
<li><a
href="https://github.com/form-data/form-data/commit/d8d67dc8ac79285154edf7d3f57dbab593b9a146"><code>d8d67dc</code></a>
v4.0.3</li>
<li><a
href="https://github.com/form-data/form-data/commit/e6e83ccb545a5619ed6cd04f31d5c2f655eb633e"><code>e6e83cc</code></a>
[meta] remove local commit hooks</li>
<li>Additional commits viewable in <a
href="https://github.com/form-data/form-data/compare/v4.0.0...v4.0.4">compare
view</a></li>
</ul>
</details>
<details>
<summary>Maintainer changes</summary>
<p>This version was pushed to npm by <a
href="https://www.npmjs.com/~ljharb">ljharb</a>, a new releaser for
form-data since your current version.</p>
</details>
<br />


Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
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You can trigger Dependabot actions by commenting on this PR:
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---
 package-lock.json | 124 ++++++++++++++++++++++++++--------------------
 1 file changed, 69 insertions(+), 55 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index a5805f351472..99f39a10d6f4 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1818,19 +1818,42 @@
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+            "version": "2.5.5",
+            "resolved": "https://registry.npmjs.org/form-data/-/form-data-2.5.5.tgz",
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             "dev": true,
             "dependencies": {
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-                "combined-stream": "^1.0.6",
-                "mime-types": "^2.1.12"
+                "combined-stream": "^1.0.8",
+                "es-set-tostringtag": "^2.1.0",
+                "hasown": "^2.0.2",
+                "mime-types": "^2.1.35",
+                "safe-buffer": "^5.2.1"
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                 "node": ">= 0.12"
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+        "node_modules/@types/got/node_modules/safe-buffer": {
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+            "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
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+            "dev": true,
+            "funding": [
+                {
+                    "type": "github",
+                    "url": "https://github.com/sponsors/feross"
+                },
+                {
+                    "type": "patreon",
+                    "url": "https://www.patreon.com/feross"
+                },
+                {
+                    "type": "consulting",
+                    "url": "https://feross.org/support"
+                }
+            ]
+        },
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@@ -3822,7 +3845,6 @@
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-            "dev": true,
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-            "dev": true,
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@@ -5533,7 +5554,6 @@
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-            "dev": true,
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-            "dev": true,
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-            "dev": true,
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@@ -5568,14 +5586,14 @@
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-            "integrity": "sha512-3T8uNMC3OQTHkFUsFq8r/BwAXLHvU/9O9mE0fBc/MY5iq/8H7ncvO947LmYA6ldWw9Uh8Yhf25zu6n7nML5QWQ==",
-            "dev": true,
+            "version": "2.1.0",
+            "resolved": "https://registry.npmjs.org/es-set-tostringtag/-/es-set-tostringtag-2.1.0.tgz",
+            "integrity": "sha512-j6vWzfrGVfyXxge+O0x5sh6cvxAog0a/4Rdd2K36zCMV5eJ+/+tOAngRO8cODMNWbVRdVlmGZQL2YS3yR8bIUA==",
             "dependencies": {
-                "get-intrinsic": "^1.2.4",
+                "es-errors": "^1.3.0",
+                "get-intrinsic": "^1.2.6",
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-                "hasown": "^2.0.1"
+                "hasown": "^2.0.2"
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@@ -6961,12 +6979,14 @@
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-            "resolved": "https://registry.npmjs.org/form-data/-/form-data-4.0.0.tgz",
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+            "version": "4.0.4",
+            "resolved": "https://registry.npmjs.org/form-data/-/form-data-4.0.4.tgz",
+            "integrity": "sha512-KrGhL9Q4zjj0kiUt5OO4Mr/A/jlI2jDYs5eHBpYHPcBEVSiipAvn2Ko2HnPe20rmcuuvMHNdZFp+4IlGTMF0Ow==",
             "dependencies": {
                 "asynckit": "^0.4.0",
                 "combined-stream": "^1.0.8",
+                "es-set-tostringtag": "^2.1.0",
+                "hasown": "^2.0.2",
                 "mime-types": "^2.1.12"
             },
             "engines": {
@@ -7135,7 +7155,6 @@
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-            "dev": true,
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             "dependencies": {
                 "call-bind-apply-helpers": "^1.0.2",
@@ -7181,7 +7200,6 @@
             "version": "1.0.1",
             "resolved": "https://registry.npmjs.org/get-proto/-/get-proto-1.0.1.tgz",
             "integrity": "sha512-sTSfBjoXBp89JvIKIefqw7U2CCebsc74kiY6awiGogKtoSGbgjYE/G/+l9sF3MWFPNc9IcoOC4ODfKHfxFmp0g==",
-            "dev": true,
             "license": "MIT",
             "dependencies": {
                 "dunder-proto": "^1.0.1",
@@ -7434,7 +7452,6 @@
             "version": "1.2.0",
             "resolved": "https://registry.npmjs.org/gopd/-/gopd-1.2.0.tgz",
             "integrity": "sha512-ZUKRh6/kUFoAiTAtTYPZJ3hw9wNxx+BIBOijnlG9PnrJsCcSjs1wyyD6vJpaYtgnzDrKYRSqf3OO6Rfa93xsRg==",
-            "dev": true,
             "license": "MIT",
             "engines": {
                 "node": ">= 0.4"
@@ -7958,7 +7975,6 @@
             "version": "1.1.0",
             "resolved": "https://registry.npmjs.org/has-symbols/-/has-symbols-1.1.0.tgz",
             "integrity": "sha512-1cDNdwJ2Jaohmb3sg4OmKaMBwuC48sYni5HUw2DvsC8LjGTLK9h+eb1X6RyuOHe4hT0ULCW68iomhjUoKUqlPQ==",
-            "dev": true,
             "license": "MIT",
             "engines": {
                 "node": ">= 0.4"
@@ -7984,7 +8000,6 @@
             "version": "1.0.2",
             "resolved": "https://registry.npmjs.org/has-tostringtag/-/has-tostringtag-1.0.2.tgz",
             "integrity": "sha512-NqADB8VjPFLM2V0VvHUewwwsw0ZWBaIdgo+ieHtK3hasLz4qeCRjYcqfB6AQrBggRKppKF8L52/VqdVsO47Dlw==",
-            "dev": true,
             "dependencies": {
                 "has-symbols": "^1.0.3"
             },
@@ -9772,7 +9787,6 @@
             "version": "1.1.0",
             "resolved": "https://registry.npmjs.org/math-intrinsics/-/math-intrinsics-1.1.0.tgz",
             "integrity": "sha512-/IXtbwEk5HTPyEwyKX6hGkYXxM9nbj64B+ilVJnC/R6B0pH5G4V3b0pVbL7DBj4tkhBAppbQUlf6F6Xl9LHu1g==",
-            "dev": true,
             "license": "MIT",
             "engines": {
                 "node": ">= 0.4"
@@ -16535,15 +16549,24 @@
             },
             "dependencies": {
                 "form-data": {
-                    "version": "2.5.1",
-                    "resolved": "https://registry.npmjs.org/form-data/-/form-data-2.5.1.tgz",
-                    "integrity": "sha512-m21N3WOmEEURgk6B9GLOE4RuWOFf28Lhh9qGYeNlGq4VDXUlJy2th2slBNU8Gp8EzloYZOibZJ7t5ecIrFSjVA==",
+                    "version": "2.5.5",
+                    "resolved": "https://registry.npmjs.org/form-data/-/form-data-2.5.5.tgz",
+                    "integrity": "sha512-jqdObeR2rxZZbPSGL+3VckHMYtu+f9//KXBsVny6JSX/pa38Fy+bGjuG8eW/H6USNQWhLi8Num++cU2yOCNz4A==",
                     "dev": true,
                     "requires": {
                         "asynckit": "^0.4.0",
-                        "combined-stream": "^1.0.6",
-                        "mime-types": "^2.1.12"
+                        "combined-stream": "^1.0.8",
+                        "es-set-tostringtag": "^2.1.0",
+                        "hasown": "^2.0.2",
+                        "mime-types": "^2.1.35",
+                        "safe-buffer": "^5.2.1"
                     }
+                },
+                "safe-buffer": {
+                    "version": "5.2.1",
+                    "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+                    "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
+                    "dev": true
                 }
             }
         },
@@ -18055,7 +18078,6 @@
             "version": "1.0.2",
             "resolved": "https://registry.npmjs.org/call-bind-apply-helpers/-/call-bind-apply-helpers-1.0.2.tgz",
             "integrity": "sha512-Sp1ablJ0ivDkSzjcaJdxEunN5/XvksFJ2sMBFfq6x0ryhQV/2b/KwFe21cMpmHtPOSij8K99/wSfoEuTObmuMQ==",
-            "dev": true,
             "requires": {
                 "es-errors": "^1.3.0",
                 "function-bind": "^1.1.2"
@@ -19174,7 +19196,6 @@
             "version": "1.0.1",
             "resolved": "https://registry.npmjs.org/dunder-proto/-/dunder-proto-1.0.1.tgz",
             "integrity": "sha512-KIN/nDJBQRcXw0MLVhZE9iQHmG68qAVIBg9CqmUYjmQIhgij9U5MFvrqkUL5FbtyyzZuOeOt0zdeRe4UY7ct+A==",
-            "dev": true,
             "requires": {
                 "call-bind-apply-helpers": "^1.0.1",
                 "es-errors": "^1.3.0",
@@ -19375,14 +19396,12 @@
         "es-define-property": {
             "version": "1.0.1",
             "resolved": "https://registry.npmjs.org/es-define-property/-/es-define-property-1.0.1.tgz",
-            "integrity": "sha512-e3nRfgfUZ4rNGL232gUgX06QNyyez04KdjFrF+LTRoOXmrOgFKDg4BCdsjW8EnT69eqdYGmRpJwiPVYNrCaW3g==",
-            "dev": true
+            "integrity": "sha512-e3nRfgfUZ4rNGL232gUgX06QNyyez04KdjFrF+LTRoOXmrOgFKDg4BCdsjW8EnT69eqdYGmRpJwiPVYNrCaW3g=="
         },
         "es-errors": {
             "version": "1.3.0",
             "resolved": "https://registry.npmjs.org/es-errors/-/es-errors-1.3.0.tgz",
-            "integrity": "sha512-Zf5H2Kxt2xjTvbJvP2ZWLEICxA6j+hAmMzIlypy4xcBg1vKVnx89Wy0GbS+kf5cwCVFFzdCFh2XSCFNULS6csw==",
-            "dev": true
+            "integrity": "sha512-Zf5H2Kxt2xjTvbJvP2ZWLEICxA6j+hAmMzIlypy4xcBg1vKVnx89Wy0GbS+kf5cwCVFFzdCFh2XSCFNULS6csw=="
         },
         "es-module-lexer": {
             "version": "1.5.4",
@@ -19394,20 +19413,19 @@
             "version": "1.1.1",
             "resolved": "https://registry.npmjs.org/es-object-atoms/-/es-object-atoms-1.1.1.tgz",
             "integrity": "sha512-FGgH2h8zKNim9ljj7dankFPcICIK9Cp5bm+c2gQSYePhpaG5+esrLODihIorn+Pe6FGJzWhXQotPv73jTaldXA==",
-            "dev": true,
             "requires": {
                 "es-errors": "^1.3.0"
             }
         },
         "es-set-tostringtag": {
-            "version": "2.0.3",
-            "resolved": "https://registry.npmjs.org/es-set-tostringtag/-/es-set-tostringtag-2.0.3.tgz",
-            "integrity": "sha512-3T8uNMC3OQTHkFUsFq8r/BwAXLHvU/9O9mE0fBc/MY5iq/8H7ncvO947LmYA6ldWw9Uh8Yhf25zu6n7nML5QWQ==",
-            "dev": true,
+            "version": "2.1.0",
+            "resolved": "https://registry.npmjs.org/es-set-tostringtag/-/es-set-tostringtag-2.1.0.tgz",
+            "integrity": "sha512-j6vWzfrGVfyXxge+O0x5sh6cvxAog0a/4Rdd2K36zCMV5eJ+/+tOAngRO8cODMNWbVRdVlmGZQL2YS3yR8bIUA==",
             "requires": {
-                "get-intrinsic": "^1.2.4",
+                "es-errors": "^1.3.0",
+                "get-intrinsic": "^1.2.6",
                 "has-tostringtag": "^1.0.2",
-                "hasown": "^2.0.1"
+                "hasown": "^2.0.2"
             }
         },
         "es-shim-unscopables": {
@@ -20427,12 +20445,14 @@
             }
         },
         "form-data": {
-            "version": "4.0.0",
-            "resolved": "https://registry.npmjs.org/form-data/-/form-data-4.0.0.tgz",
-            "integrity": "sha512-ETEklSGi5t0QMZuiXoA/Q6vcnxcLQP5vdugSpuAyi6SVGi2clPPp+xgEhuMaHC+zGgn31Kd235W35f7Hykkaww==",
+            "version": "4.0.4",
+            "resolved": "https://registry.npmjs.org/form-data/-/form-data-4.0.4.tgz",
+            "integrity": "sha512-KrGhL9Q4zjj0kiUt5OO4Mr/A/jlI2jDYs5eHBpYHPcBEVSiipAvn2Ko2HnPe20rmcuuvMHNdZFp+4IlGTMF0Ow==",
             "requires": {
                 "asynckit": "^0.4.0",
                 "combined-stream": "^1.0.8",
+                "es-set-tostringtag": "^2.1.0",
+                "hasown": "^2.0.2",
                 "mime-types": "^2.1.12"
             }
         },
@@ -20560,7 +20580,6 @@
             "version": "1.3.0",
             "resolved": "https://registry.npmjs.org/get-intrinsic/-/get-intrinsic-1.3.0.tgz",
             "integrity": "sha512-9fSjSaos/fRIVIp+xSJlE6lfwhES7LNtKaCBIamHsjr2na1BiABJPo0mOjjz8GJDURarmCPGqaiVg5mfjb98CQ==",
-            "dev": true,
             "requires": {
                 "call-bind-apply-helpers": "^1.0.2",
                 "es-define-property": "^1.0.1",
@@ -20590,7 +20609,6 @@
             "version": "1.0.1",
             "resolved": "https://registry.npmjs.org/get-proto/-/get-proto-1.0.1.tgz",
             "integrity": "sha512-sTSfBjoXBp89JvIKIefqw7U2CCebsc74kiY6awiGogKtoSGbgjYE/G/+l9sF3MWFPNc9IcoOC4ODfKHfxFmp0g==",
-            "dev": true,
             "requires": {
                 "dunder-proto": "^1.0.1",
                 "es-object-atoms": "^1.0.0"
@@ -20790,8 +20808,7 @@
         "gopd": {
             "version": "1.2.0",
             "resolved": "https://registry.npmjs.org/gopd/-/gopd-1.2.0.tgz",
-            "integrity": "sha512-ZUKRh6/kUFoAiTAtTYPZJ3hw9wNxx+BIBOijnlG9PnrJsCcSjs1wyyD6vJpaYtgnzDrKYRSqf3OO6Rfa93xsRg==",
-            "dev": true
+            "integrity": "sha512-ZUKRh6/kUFoAiTAtTYPZJ3hw9wNxx+BIBOijnlG9PnrJsCcSjs1wyyD6vJpaYtgnzDrKYRSqf3OO6Rfa93xsRg=="
         },
         "got": {
             "version": "8.3.2",
@@ -21185,8 +21202,7 @@
         "has-symbols": {
             "version": "1.1.0",
             "resolved": "https://registry.npmjs.org/has-symbols/-/has-symbols-1.1.0.tgz",
-            "integrity": "sha512-1cDNdwJ2Jaohmb3sg4OmKaMBwuC48sYni5HUw2DvsC8LjGTLK9h+eb1X6RyuOHe4hT0ULCW68iomhjUoKUqlPQ==",
-            "dev": true
+            "integrity": "sha512-1cDNdwJ2Jaohmb3sg4OmKaMBwuC48sYni5HUw2DvsC8LjGTLK9h+eb1X6RyuOHe4hT0ULCW68iomhjUoKUqlPQ=="
         },
         "has-to-string-tag-x": {
             "version": "1.4.1",
@@ -21201,7 +21217,6 @@
             "version": "1.0.2",
             "resolved": "https://registry.npmjs.org/has-tostringtag/-/has-tostringtag-1.0.2.tgz",
             "integrity": "sha512-NqADB8VjPFLM2V0VvHUewwwsw0ZWBaIdgo+ieHtK3hasLz4qeCRjYcqfB6AQrBggRKppKF8L52/VqdVsO47Dlw==",
-            "dev": true,
             "requires": {
                 "has-symbols": "^1.0.3"
             }
@@ -22535,8 +22550,7 @@
         "math-intrinsics": {
             "version": "1.1.0",
             "resolved": "https://registry.npmjs.org/math-intrinsics/-/math-intrinsics-1.1.0.tgz",
-            "integrity": "sha512-/IXtbwEk5HTPyEwyKX6hGkYXxM9nbj64B+ilVJnC/R6B0pH5G4V3b0pVbL7DBj4tkhBAppbQUlf6F6Xl9LHu1g==",
-            "dev": true
+            "integrity": "sha512-/IXtbwEk5HTPyEwyKX6hGkYXxM9nbj64B+ilVJnC/R6B0pH5G4V3b0pVbL7DBj4tkhBAppbQUlf6F6Xl9LHu1g=="
         },
         "md5": {
             "version": "2.3.0",

From 6827afb50ab5326d051c7c50e39dd26fc2c0e15a Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Mon, 28 Jul 2025 14:01:50 -0700
Subject: [PATCH 040/178] add workspace folder for debugpy launch.json config
 (#25338)

fixes https://github.com/microsoft/vscode-python-environments/issues/645
---
 src/client/interpreter/interpreterPathCommand.ts     | 12 ++++++++++--
 .../interpreters/interpreterPathCommand.unit.test.ts | 10 +++++++++-
 2 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/src/client/interpreter/interpreterPathCommand.ts b/src/client/interpreter/interpreterPathCommand.ts
index 0dce208c9bfc..12f6756dafeb 100644
--- a/src/client/interpreter/interpreterPathCommand.ts
+++ b/src/client/interpreter/interpreterPathCommand.ts
@@ -4,12 +4,13 @@
 'use strict';
 
 import { inject, injectable } from 'inversify';
-import { Uri } from 'vscode';
+import { Uri, workspace } from 'vscode';
 import { IExtensionSingleActivationService } from '../activation/types';
 import { Commands } from '../common/constants';
 import { IDisposable, IDisposableRegistry } from '../common/types';
 import { registerCommand } from '../common/vscodeApis/commandApis';
 import { IInterpreterService } from './contracts';
+import { useEnvExtension } from '../envExt/api.internal';
 
 @injectable()
 export class InterpreterPathCommand implements IExtensionSingleActivationService {
@@ -26,7 +27,9 @@ export class InterpreterPathCommand implements IExtensionSingleActivationService
         );
     }
 
-    public async _getSelectedInterpreterPath(args: { workspaceFolder: string } | string[]): Promise<string> {
+    public async _getSelectedInterpreterPath(
+        args: { workspaceFolder: string; type: string } | string[],
+    ): Promise<string> {
         // If `launch.json` is launching this command, `args.workspaceFolder` carries the workspaceFolder
         // If `tasks.json` is launching this command, `args[1]` carries the workspaceFolder
         let workspaceFolder;
@@ -35,6 +38,11 @@ export class InterpreterPathCommand implements IExtensionSingleActivationService
         } else if (args[1]) {
             const [, second] = args;
             workspaceFolder = second;
+        } else if (useEnvExtension() && 'type' in args && args.type === 'debugpy') {
+            // If using the envsExt and the type is debugpy, we need to add the workspace folder to get the interpreter path.
+            if (Array.isArray(workspace.workspaceFolders) && workspace.workspaceFolders.length > 0) {
+                workspaceFolder = workspace.workspaceFolders[0].uri.fsPath;
+            }
         } else {
             workspaceFolder = undefined;
         }
diff --git a/src/test/interpreters/interpreterPathCommand.unit.test.ts b/src/test/interpreters/interpreterPathCommand.unit.test.ts
index be94be654861..8d45ad82577c 100644
--- a/src/test/interpreters/interpreterPathCommand.unit.test.ts
+++ b/src/test/interpreters/interpreterPathCommand.unit.test.ts
@@ -13,15 +13,19 @@ import * as commandApis from '../../client/common/vscodeApis/commandApis';
 import { InterpreterPathCommand } from '../../client/interpreter/interpreterPathCommand';
 import { IInterpreterService } from '../../client/interpreter/contracts';
 import { PythonEnvironment } from '../../client/pythonEnvironments/info';
+import * as workspaceApis from '../../client/common/vscodeApis/workspaceApis';
 
 suite('Interpreter Path Command', () => {
     let interpreterService: IInterpreterService;
     let interpreterPathCommand: InterpreterPathCommand;
     let registerCommandStub: sinon.SinonStub;
+    let getConfigurationStub: sinon.SinonStub;
+
     setup(() => {
         interpreterService = mock<IInterpreterService>();
         registerCommandStub = sinon.stub(commandApis, 'registerCommand');
         interpreterPathCommand = new InterpreterPathCommand(instance(interpreterService), []);
+        getConfigurationStub = sinon.stub(workspaceApis, 'getConfiguration');
     });
 
     teardown(() => {
@@ -43,7 +47,7 @@ suite('Interpreter Path Command', () => {
     });
 
     test('If `workspaceFolder` property exists in `args`, it is used to retrieve setting from config', async () => {
-        const args = { workspaceFolder: 'folderPath' };
+        const args = { workspaceFolder: 'folderPath', type: 'debugpy' };
         when(interpreterService.getActiveInterpreter(anything())).thenCall((arg) => {
             assert.deepEqual(arg, Uri.file('folderPath'));
 
@@ -76,6 +80,10 @@ suite('Interpreter Path Command', () => {
     });
 
     test('If neither of these exists, value of workspace folder is `undefined`', async () => {
+        getConfigurationStub.withArgs('python').returns({
+            get: sinon.stub().returns(false),
+        });
+
         const args = ['command'];
 
         when(interpreterService.getActiveInterpreter(undefined)).thenReturn(

From 3fb2381a3f4593cb9ee26e14f90de76e962aca54 Mon Sep 17 00:00:00 2001
From: Anthony Kim <62267334+anthonykim1@users.noreply.github.com>
Date: Tue, 5 Aug 2025 09:34:11 -0700
Subject: [PATCH 041/178] bump version 2025.12.0 (#25354)

---
 build/azure-pipeline.stable.yml | 40 ++++++++++++++++-----------------
 package-lock.json               |  4 ++--
 package.json                    |  2 +-
 3 files changed, 23 insertions(+), 23 deletions(-)

diff --git a/build/azure-pipeline.stable.yml b/build/azure-pipeline.stable.yml
index 37c63cf067fb..c68dacc7db80 100644
--- a/build/azure-pipeline.stable.yml
+++ b/build/azure-pipeline.stable.yml
@@ -92,8 +92,8 @@ extends:
         displayName: Build
 
       - bash: |
-            mkdir -p $(Build.SourcesDirectory)/python-env-tools/bin
-            chmod +x $(Build.SourcesDirectory)/python-env-tools/bin
+          mkdir -p $(Build.SourcesDirectory)/python-env-tools/bin
+          chmod +x $(Build.SourcesDirectory)/python-env-tools/bin
         displayName: Make Directory for python-env-tool binary
 
       - bash: |
@@ -124,30 +124,30 @@ extends:
 
       - task: DownloadPipelineArtifact@2
         inputs:
-            buildType: 'specific'
-            project: 'Monaco'
-            definition: 593
-            buildVersionToDownload: 'latestFromBranch'
-            branchName: 'refs/heads/release/2025.10'
-            targetPath: '$(Build.SourcesDirectory)/python-env-tools/bin'
-            artifactName: 'bin-$(buildTarget)'
-            itemPattern: |
-              pet.exe
-              pet
-              ThirdPartyNotices.txt
+          buildType: 'specific'
+          project: 'Monaco'
+          definition: 593
+          buildVersionToDownload: 'latestFromBranch'
+          branchName: 'refs/heads/release/2025.12'
+          targetPath: '$(Build.SourcesDirectory)/python-env-tools/bin'
+          artifactName: 'bin-$(buildTarget)'
+          itemPattern: |
+            pet.exe
+            pet
+            ThirdPartyNotices.txt
 
       - bash: |
-            ls -lf ./python-env-tools/bin
-            chmod +x ./python-env-tools/bin/pet*
-            ls -lf ./python-env-tools/bin
+          ls -lf ./python-env-tools/bin
+          chmod +x ./python-env-tools/bin/pet*
+          ls -lf ./python-env-tools/bin
         displayName: Set chmod for pet binary
 
       - script: python -c "import shutil; shutil.rmtree('.nox', ignore_errors=True)"
         displayName: Clean up Nox
     tsa:
-        config:
-            areaPath: 'Visual Studio Code Python Extensions'
-            serviceTreeID: '6e6194bc-7baa-4486-86d0-9f5419626d46'
-        enabled: true
+      config:
+        areaPath: 'Visual Studio Code Python Extensions'
+        serviceTreeID: '6e6194bc-7baa-4486-86d0-9f5419626d46'
+      enabled: true
     apiScanDependentPipelineId: '593' # python-environment-tools
     apiScanSoftwareVersion: '2024'
diff --git a/package-lock.json b/package-lock.json
index 99f39a10d6f4..4345047b8e3b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "python",
-    "version": "2025.11.0-dev",
+    "version": "2025.12.0",
     "lockfileVersion": 2,
     "requires": true,
     "packages": {
         "": {
             "name": "python",
-            "version": "2025.11.0-dev",
+            "version": "2025.12.0",
             "license": "MIT",
             "dependencies": {
                 "@iarna/toml": "^2.2.5",
diff --git a/package.json b/package.json
index 66eceab34d69..2f138943d9e0 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
     "name": "python",
     "displayName": "Python",
     "description": "Python language support with extension access points for IntelliSense (Pylance), Debugging (Python Debugger), linting, formatting, refactoring, unit tests, and more.",
-    "version": "2025.11.0-dev",
+    "version": "2025.12.0",
     "featureFlags": {
         "usingNewInterpreterStorage": true
     },

From 78b5d75debb5918074b622213cd9ba878c6437e8 Mon Sep 17 00:00:00 2001
From: Anthony Kim <62267334+anthonykim1@users.noreply.github.com>
Date: Tue, 5 Aug 2025 14:18:52 -0700
Subject: [PATCH 042/178] bump to 2025.13.0-dev (#25355)

---
 package-lock.json | 4 ++--
 package.json      | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 4345047b8e3b..86e84f48b311 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "python",
-    "version": "2025.12.0",
+    "version": "2025.13.0-dev",
     "lockfileVersion": 2,
     "requires": true,
     "packages": {
         "": {
             "name": "python",
-            "version": "2025.12.0",
+            "version": "2025.13.0-dev",
             "license": "MIT",
             "dependencies": {
                 "@iarna/toml": "^2.2.5",
diff --git a/package.json b/package.json
index 2f138943d9e0..961ba8263195 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
     "name": "python",
     "displayName": "Python",
     "description": "Python language support with extension access points for IntelliSense (Pylance), Debugging (Python Debugger), linting, formatting, refactoring, unit tests, and more.",
-    "version": "2025.12.0",
+    "version": "2025.13.0-dev",
     "featureFlags": {
         "usingNewInterpreterStorage": true
     },

From f3f22937ff73c37c1a4c8d60c158161103051790 Mon Sep 17 00:00:00 2001
From: Anthony Kim <62267334+anthonykim1@users.noreply.github.com>
Date: Wed, 6 Aug 2025 12:58:03 -0700
Subject: [PATCH 043/178] Default Python shell integration to true (#25359)

Resolves: https://github.com/microsoft/vscode-python/issues/24141
/cc @cwebster-99
---
 package.json | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package.json b/package.json
index 961ba8263195..c6d1595ac181 100644
--- a/package.json
+++ b/package.json
@@ -640,7 +640,7 @@
                     "type": "array"
                 },
                 "python.terminal.shellIntegration.enabled": {
-                    "default": false,
+                    "default": true,
                     "markdownDescription": "%python.terminal.shellIntegration.enabled.description%",
                     "scope": "resource",
                     "type": "boolean",

From fec1b06ec8e2d98469861ceac9a86aaaaf244cb2 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Thu, 7 Aug 2025 10:53:12 -0700
Subject: [PATCH 044/178] Add verbose logging for conda activation commands and
 service methods (#25365)

to assist with transition to python-environments extension, add in
verbose logging to help track existing steps while debugging
---
 .../condaActivationProvider.ts                | 26 ++++++++++++++++---
 .../environmentManagers/condaService.ts       |  5 ++++
 2 files changed, 27 insertions(+), 4 deletions(-)

diff --git a/src/client/common/terminal/environmentActivationProviders/condaActivationProvider.ts b/src/client/common/terminal/environmentActivationProviders/condaActivationProvider.ts
index d209550e04a4..42bb8f38fc9e 100644
--- a/src/client/common/terminal/environmentActivationProviders/condaActivationProvider.ts
+++ b/src/client/common/terminal/environmentActivationProviders/condaActivationProvider.ts
@@ -8,6 +8,7 @@ import '../../extensions';
 import { inject, injectable } from 'inversify';
 import * as path from 'path';
 import { Uri } from 'vscode';
+import { traceInfo, traceVerbose, traceWarn } from '../../../logging';
 
 import { IComponentAdapter, ICondaService } from '../../../interpreter/contracts';
 import { IPlatformService } from '../../platform/types';
@@ -53,16 +54,21 @@ export class CondaActivationCommandProvider implements ITerminalActivationComman
         pythonPath: string,
         targetShell: TerminalShellType,
     ): Promise<string[] | undefined> {
+        traceVerbose(`Getting conda activation commands for interpreter ${pythonPath} with shell ${targetShell}`);
         const envInfo = await this.pyenvs.getCondaEnvironment(pythonPath);
         if (!envInfo) {
+            traceWarn(`No conda environment found for interpreter ${pythonPath}`);
             return undefined;
         }
+        traceVerbose(`Found conda environment: ${JSON.stringify(envInfo)}`);
 
         const condaEnv = envInfo.name.length > 0 ? envInfo.name : envInfo.path;
 
         // New version.
         const interpreterPath = await this.condaService.getInterpreterPathForEnvironment(envInfo);
+        traceInfo(`Using interpreter path: ${interpreterPath}`);
         const activatePath = await this.condaService.getActivationScriptFromInterpreter(interpreterPath, envInfo.name);
+        traceVerbose(`Got activation script: ${activatePath?.path}} with type: ${activatePath?.type}`);
         // eslint-disable-next-line camelcase
         if (activatePath?.path) {
             if (
@@ -70,11 +76,14 @@ export class CondaActivationCommandProvider implements ITerminalActivationComman
                 targetShell !== TerminalShellType.bash &&
                 targetShell !== TerminalShellType.gitbash
             ) {
-                return [activatePath.path, `conda activate ${condaEnv.toCommandArgumentForPythonExt()}`];
+                const commands = [activatePath.path, `conda activate ${condaEnv.toCommandArgumentForPythonExt()}`];
+                traceInfo(`Using Windows-specific commands: ${commands.join(', ')}`);
+                return commands;
             }
 
             const condaInfo = await this.condaService.getCondaInfo();
 
+            traceVerbose(`Conda shell level: ${condaInfo?.conda_shlvl}`);
             if (
                 activatePath.type !== 'global' ||
                 // eslint-disable-next-line camelcase
@@ -84,27 +93,36 @@ export class CondaActivationCommandProvider implements ITerminalActivationComman
                 // activatePath is not the global activate path, or we don't have a shlvl, or it's -1（conda never sourced）.
                 // and we need to source the activate path.
                 if (activatePath.path === 'activate') {
-                    return [
+                    const commands = [
                         `source ${activatePath.path}`,
                         `conda activate ${condaEnv.toCommandArgumentForPythonExt()}`,
                     ];
+                    traceInfo(`Using source activate commands: ${commands.join(', ')}`);
+                    return commands;
                 }
-                return [`source ${activatePath.path} ${condaEnv.toCommandArgumentForPythonExt()}`];
+                const command = [`source ${activatePath.path} ${condaEnv.toCommandArgumentForPythonExt()}`];
+                traceInfo(`Using single source command: ${command}`);
+                return command;
             }
-            return [`conda activate ${condaEnv.toCommandArgumentForPythonExt()}`];
+            const command = [`conda activate ${condaEnv.toCommandArgumentForPythonExt()}`];
+            traceInfo(`Using direct conda activate command: ${command}`);
+            return command;
         }
 
         switch (targetShell) {
             case TerminalShellType.powershell:
             case TerminalShellType.powershellCore:
+                traceVerbose('Using PowerShell-specific activation');
                 return _getPowershellCommands(condaEnv);
 
             // TODO: Do we really special-case fish on Windows?
             case TerminalShellType.fish:
+                traceVerbose('Using Fish shell-specific activation');
                 return getFishCommands(condaEnv, await this.condaService.getCondaFile());
 
             default:
                 if (this.platform.isWindows) {
+                    traceVerbose('Using Windows shell-specific activation fallback option.');
                     return this.getWindowsCommands(condaEnv);
                 }
                 return getUnixCommands(condaEnv, await this.condaService.getCondaFile());
diff --git a/src/client/pythonEnvironments/common/environmentManagers/condaService.ts b/src/client/pythonEnvironments/common/environmentManagers/condaService.ts
index 0739993dad37..0aa91bdbfb45 100644
--- a/src/client/pythonEnvironments/common/environmentManagers/condaService.ts
+++ b/src/client/pythonEnvironments/common/environmentManagers/condaService.ts
@@ -2,6 +2,7 @@ import { inject, injectable } from 'inversify';
 import * as path from 'path';
 import { SemVer } from 'semver';
 import { IFileSystem, IPlatformService } from '../../../common/platform/types';
+import { traceVerbose } from '../../../logging';
 import { cache } from '../../../common/utils/decorators';
 import { ICondaService } from '../../../interpreter/contracts';
 import { traceDecoratorVerbose } from '../../../logging';
@@ -23,12 +24,15 @@ export class CondaService implements ICondaService {
         interpreterPath?: string,
         envName?: string,
     ): Promise<{ path: string | undefined; type: 'local' | 'global' } | undefined> {
+        traceVerbose(`Getting activation script for interpreter ${interpreterPath}, env ${envName}`);
         const condaPath = await this.getCondaFileFromInterpreter(interpreterPath, envName);
+        traceVerbose(`Found conda path: ${condaPath}`);
 
         const activatePath = (condaPath
             ? path.join(path.dirname(condaPath), 'activate')
             : 'activate'
         ).fileToCommandArgumentForPythonExt(); // maybe global activate?
+        traceVerbose(`Using activate path: ${activatePath}`);
 
         // try to find the activate script in the global conda root prefix.
         if (this.platform.isLinux || this.platform.isMac) {
@@ -41,6 +45,7 @@ export class CondaService implements ICondaService {
                     .fileToCommandArgumentForPythonExt();
 
                 if (activatePath === globalActivatePath || !(await this.fileSystem.fileExists(activatePath))) {
+                    traceVerbose(`Using global activate path: ${globalActivatePath}`);
                     return {
                         path: globalActivatePath,
                         type: 'global',

From 11fa35dcc741da1fa0610bae6afc301a7efb2085 Mon Sep 17 00:00:00 2001
From: Anthony Kim <62267334+anthonykim1@users.noreply.github.com>
Date: Thu, 7 Aug 2025 11:01:35 -0700
Subject: [PATCH 045/178] Add onTerminalShellIntegration:python (#25364)

Resolves: https://github.com/microsoft/vscode-python/issues/25363
---
 package.json | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/package.json b/package.json
index c6d1595ac181..f113890ad97d 100644
--- a/package.json
+++ b/package.json
@@ -83,7 +83,8 @@
         "onLanguageModelTool:get_python_executable_details",
         "onLanguageModelTool:install_python_packages",
         "onLanguageModelTool:configure_python_environment",
-        "onLanguageModelTool:create_virtual_environment"
+        "onLanguageModelTool:create_virtual_environment",
+        "onTerminalShellIntegration:python"
     ],
     "main": "./out/client/extension",
     "browser": "./dist/extension.browser.js",

From fffb30f6d8bebb51758b62fa3a76ef31b783344a Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Tue, 12 Aug 2025 12:49:00 -0700
Subject: [PATCH 046/178] update to node 22 and fix tests (#25379)

update to use node 22
update to use a higher version of vscode in the python api
fix tests which began failing with node 22
---
 .github/workflows/build.yml                 |  2 +-
 .github/workflows/pr-check.yml              |  2 +-
 build/azure-pipeline.pre-release.yml        |  2 +-
 build/azure-pipeline.stable.yml             |  2 +-
 build/azure-pipelines/pipeline.yml          |  6 +--
 pythonExtensionApi/package-lock.json        |  2 +-
 pythonExtensionApi/package.json             |  4 +-
 src/client/common/process/logger.ts         |  7 ++++
 src/test/common/process/logger.unit.test.ts | 43 ++++++++++++++++-----
 9 files changed, 50 insertions(+), 20 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index ca75f6ef7727..16f398f5a166 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -11,7 +11,7 @@ on:
 permissions: {}
 
 env:
-  NODE_VERSION: 20.18.1
+  NODE_VERSION: 22.17.0
   PYTHON_VERSION: '3.10' # YML treats 3.10 the number as 3.1, so quotes around 3.10
   # Force a path with spaces and to test extension works in these scenarios
   # Unicode characters are causing 2.7 failures so skip that for now.
diff --git a/.github/workflows/pr-check.yml b/.github/workflows/pr-check.yml
index 65e80e1f6280..368d9d0dbb73 100644
--- a/.github/workflows/pr-check.yml
+++ b/.github/workflows/pr-check.yml
@@ -10,7 +10,7 @@ on:
 permissions: {}
 
 env:
-  NODE_VERSION: 20.18.1
+  NODE_VERSION: 22.17.0
   PYTHON_VERSION: '3.10' # YML treats 3.10 the number as 3.1, so quotes around 3.10
   MOCHA_REPORTER_JUNIT: true # Use the mocha-multi-reporters and send output to both console (spec) and JUnit (mocha-junit-reporter). Also enables a reporter which exits the process running the tests if it haven't already.
   ARTIFACT_NAME_VSIX: ms-python-insiders-vsix
diff --git a/build/azure-pipeline.pre-release.yml b/build/azure-pipeline.pre-release.yml
index ab087673f1e7..e7159618d3ae 100644
--- a/build/azure-pipeline.pre-release.yml
+++ b/build/azure-pipeline.pre-release.yml
@@ -66,7 +66,7 @@ extends:
     buildSteps:
       - task: NodeTool@0
         inputs:
-          versionSpec: '20.18.1'
+          versionSpec: '22.17.0'
         displayName: Select Node version
 
       - task: UsePythonVersion@0
diff --git a/build/azure-pipeline.stable.yml b/build/azure-pipeline.stable.yml
index c68dacc7db80..ce67c69a3df4 100644
--- a/build/azure-pipeline.stable.yml
+++ b/build/azure-pipeline.stable.yml
@@ -60,7 +60,7 @@ extends:
     buildSteps:
       - task: NodeTool@0
         inputs:
-          versionSpec: '20.18.1'
+          versionSpec: '22.17.0'
         displayName: Select Node version
 
       - task: UsePythonVersion@0
diff --git a/build/azure-pipelines/pipeline.yml b/build/azure-pipelines/pipeline.yml
index ebb8a141d9d3..46302aa6ff90 100644
--- a/build/azure-pipelines/pipeline.yml
+++ b/build/azure-pipelines/pipeline.yml
@@ -37,13 +37,13 @@ extends:
         testPlatforms:
           - name: Linux
             nodeVersions:
-              - 20.18.1
+              - 22.17.0
           - name: MacOS
             nodeVersions:
-              - 20.18.1
+              - 22.17.0
           - name: Windows
             nodeVersions:
-              - 20.18.1
+              - 22.17.0
         testSteps:
           - template: /build/azure-pipelines/templates/test-steps.yml@self
             parameters:
diff --git a/pythonExtensionApi/package-lock.json b/pythonExtensionApi/package-lock.json
index ec175f1aaa5d..e462fc1c888a 100644
--- a/pythonExtensionApi/package-lock.json
+++ b/pythonExtensionApi/package-lock.json
@@ -14,7 +14,7 @@
                 "typescript": "~5.2"
             },
             "engines": {
-                "node": ">=20.18.1",
+                "node": ">=22.17.0",
                 "vscode": "^1.93.0"
             }
         },
diff --git a/pythonExtensionApi/package.json b/pythonExtensionApi/package.json
index 9a27e5a09b0a..e4e956ff6065 100644
--- a/pythonExtensionApi/package.json
+++ b/pythonExtensionApi/package.json
@@ -13,7 +13,7 @@
     "main": "./out/main.js",
     "types": "./out/main.d.ts",
     "engines": {
-        "node": ">=20.18.1",
+        "node": ">=22.17.0",
         "vscode": "^1.93.0"
     },
     "license": "MIT",
@@ -27,7 +27,7 @@
     },
     "devDependencies": {
         "typescript": "~5.2",
-        "@types/vscode": "^1.93.0",
+        "@types/vscode": "^1.102.0",
         "source-map": "^0.8.0-beta.0"
     },
     "scripts": {
diff --git a/src/client/common/process/logger.ts b/src/client/common/process/logger.ts
index 47e9ef88fa4f..b65da8dc81e5 100644
--- a/src/client/common/process/logger.ts
+++ b/src/client/common/process/logger.ts
@@ -41,6 +41,13 @@ export class ProcessLogger implements IProcessLogger {
         });
     }
 
+    /**
+     * Formats command strings for display by replacing common paths with symbols.
+     * - Replaces the workspace folder path with '.' if there's exactly one workspace folder
+     * - Replaces the user's home directory path with '~'
+     * @param command The command string to format
+     * @returns The formatted command string with paths replaced by symbols
+     */
     private getDisplayCommands(command: string): string {
         if (this.workspaceService.workspaceFolders && this.workspaceService.workspaceFolders.length === 1) {
             command = replaceMatchesWithCharacter(command, this.workspaceService.workspaceFolders[0].uri.fsPath, '.');
diff --git a/src/test/common/process/logger.unit.test.ts b/src/test/common/process/logger.unit.test.ts
index f1421ea58b85..366a7056e89e 100644
--- a/src/test/common/process/logger.unit.test.ts
+++ b/src/test/common/process/logger.unit.test.ts
@@ -109,32 +109,55 @@ suite('ProcessLogger suite', () => {
 
     test('Logger replaces the path/to/home with ~ in the command path where the home path IS NOT at the beginning of the path', async () => {
         const options = { cwd: path.join('debug', 'path') };
-        logger.logProcess(path.join('net', untildify('~'), 'test'), ['--foo', '--bar'], options);
+        const untildifyStr = untildify('~');
+
+        let p1 = path.join('net', untildifyStr, 'test');
+        if (p1.startsWith('.')) {
+            if (getOSType() === OSType.Windows) {
+                p1 = p1.replace(/^\.\\+/, '');
+            } else {
+                p1 = p1.replace(/^\.\\/, '');
+            }
+        }
+        logger.logProcess(p1, ['--foo', '--bar'], options);
 
-        sinon.assert.calledWithExactly(traceLogStub, `> ${path.join('net', '~', 'test')} --foo --bar`);
+        const path1 = path.join('.', 'net', '~', 'test');
+        sinon.assert.calledWithExactly(traceLogStub, `> ${path1} --foo --bar`);
         sinon.assert.calledWithExactly(traceLogStub, `cwd: ${options.cwd}`);
     });
 
     test('Logger replaces the path/to/home with ~ in the command path where the home path IS NOT at the beginning of the path but another arg contains other ref to home folder', async () => {
         const options = { cwd: path.join('debug', 'path') };
-        logger.logProcess(
-            path.join('net', untildify('~'), 'test'),
-            ['--foo', path.join(untildify('~'), 'boo')],
-            options,
-        );
+        let p1 = path.join('net', untildify('~'), 'test');
+        if (p1.startsWith('.')) {
+            if (getOSType() === OSType.Windows) {
+                p1 = p1.replace(/^\.\\+/, '');
+            } else {
+                p1 = p1.replace(/^\.\\/, '');
+            }
+        }
+        logger.logProcess(p1, ['--foo', path.join(untildify('~'), 'boo')], options);
 
         sinon.assert.calledWithExactly(
             traceLogStub,
-            `> ${path.join('net', '~', 'test')} --foo ${path.join('~', 'boo')}`,
+            `> ${path.join('.', 'net', '~', 'test')} --foo ${path.join('~', 'boo')}`,
         );
         sinon.assert.calledWithExactly(traceLogStub, `cwd: ${options.cwd}`);
     });
 
     test('Logger replaces the path/to/home with ~ in the command path where the home path IS NOT at the beginning of the path between doble quotes', async () => {
         const options = { cwd: path.join('debug', 'path') };
-        logger.logProcess(`"${path.join('net', untildify('~'), 'test')}" "--foo" "--bar"`, undefined, options);
+        let p1 = path.join('net', untildify('~'), 'test');
+        if (p1.startsWith('.')) {
+            if (getOSType() === OSType.Windows) {
+                p1 = p1.replace(/^\.\\+/, '');
+            } else {
+                p1 = p1.replace(/^\.\\/, '');
+            }
+        }
+        logger.logProcess(`"${p1}" "--foo" "--bar"`, undefined, options);
 
-        sinon.assert.calledWithExactly(traceLogStub, `> "${path.join('net', '~', 'test')}" "--foo" "--bar"`);
+        sinon.assert.calledWithExactly(traceLogStub, `> "${path.join('.', 'net', '~', 'test')}" "--foo" "--bar"`);
         sinon.assert.calledWithExactly(traceLogStub, `cwd: ${options.cwd}`);
     });
 

From 5b59591b5c3dce164bb66a0c951f4dbd6e9c4132 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Wed, 13 Aug 2025 14:33:41 -0700
Subject: [PATCH 047/178] Bump actions/checkout from 4 to 5 (#25381)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to
5.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/actions/checkout/releases">actions/checkout's
releases</a>.</em></p>
<blockquote>
<h2>v5.0.0</h2>
<h2>What's Changed</h2>
<ul>
<li>Update actions checkout to use node 24 by <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2226">actions/checkout#2226</a></li>
<li>Prepare v5.0.0 release by <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2238">actions/checkout#2238</a></li>
</ul>
<h2>⚠️ Minimum Compatible Runner Version</h2>
<p><strong>v2.327.1</strong><br />
<a
href="https://github.com/actions/runner/releases/tag/v2.327.1">Release
Notes</a></p>
<p>Make sure your runner is updated to this version or newer to use this
release.</p>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/checkout/compare/v4...v5.0.0">https://github.com/actions/checkout/compare/v4...v5.0.0</a></p>
<h2>v4.3.0</h2>
<h2>What's Changed</h2>
<ul>
<li>docs: update README.md by <a
href="https://github.com/motss"><code>@​motss</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1971">actions/checkout#1971</a></li>
<li>Add internal repos for checking out multiple repositories by <a
href="https://github.com/mouismail"><code>@​mouismail</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1977">actions/checkout#1977</a></li>
<li>Documentation update - add recommended permissions to Readme by <a
href="https://github.com/benwells"><code>@​benwells</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2043">actions/checkout#2043</a></li>
<li>Adjust positioning of user email note and permissions heading by <a
href="https://github.com/joshmgross"><code>@​joshmgross</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2044">actions/checkout#2044</a></li>
<li>Update README.md by <a
href="https://github.com/nebuk89"><code>@​nebuk89</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2194">actions/checkout#2194</a></li>
<li>Update CODEOWNERS for actions by <a
href="https://github.com/TingluoHuang"><code>@​TingluoHuang</code></a>
in <a
href="https://redirect.github.com/actions/checkout/pull/2224">actions/checkout#2224</a></li>
<li>Update package dependencies by <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2236">actions/checkout#2236</a></li>
<li>Prepare release v4.3.0 by <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2237">actions/checkout#2237</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/motss"><code>@​motss</code></a> made
their first contribution in <a
href="https://redirect.github.com/actions/checkout/pull/1971">actions/checkout#1971</a></li>
<li><a href="https://github.com/mouismail"><code>@​mouismail</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/checkout/pull/1977">actions/checkout#1977</a></li>
<li><a href="https://github.com/benwells"><code>@​benwells</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/checkout/pull/2043">actions/checkout#2043</a></li>
<li><a href="https://github.com/nebuk89"><code>@​nebuk89</code></a> made
their first contribution in <a
href="https://redirect.github.com/actions/checkout/pull/2194">actions/checkout#2194</a></li>
<li><a href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/checkout/pull/2236">actions/checkout#2236</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/checkout/compare/v4...v4.3.0">https://github.com/actions/checkout/compare/v4...v4.3.0</a></p>
<h2>v4.2.2</h2>
<h2>What's Changed</h2>
<ul>
<li><code>url-helper.ts</code> now leverages well-known environment
variables by <a href="https://github.com/jww3"><code>@​jww3</code></a>
in <a
href="https://redirect.github.com/actions/checkout/pull/1941">actions/checkout#1941</a></li>
<li>Expand unit test coverage for <code>isGhes</code> by <a
href="https://github.com/jww3"><code>@​jww3</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1946">actions/checkout#1946</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/checkout/compare/v4.2.1...v4.2.2">https://github.com/actions/checkout/compare/v4.2.1...v4.2.2</a></p>
<h2>v4.2.1</h2>
<h2>What's Changed</h2>
<ul>
<li>Check out other refs/* by commit if provided, fall back to ref by <a
href="https://github.com/orhantoy"><code>@​orhantoy</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1924">actions/checkout#1924</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/Jcambass"><code>@​Jcambass</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/checkout/pull/1919">actions/checkout#1919</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/checkout/compare/v4.2.0...v4.2.1">https://github.com/actions/checkout/compare/v4.2.0...v4.2.1</a></p>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/actions/checkout/blob/main/CHANGELOG.md">actions/checkout's
changelog</a>.</em></p>
<blockquote>
<h1>Changelog</h1>
<h2>V5.0.0</h2>
<ul>
<li>Update actions checkout to use node 24 by <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2226">actions/checkout#2226</a></li>
</ul>
<h2>V4.3.0</h2>
<ul>
<li>docs: update README.md by <a
href="https://github.com/motss"><code>@​motss</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1971">actions/checkout#1971</a></li>
<li>Add internal repos for checking out multiple repositories by <a
href="https://github.com/mouismail"><code>@​mouismail</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1977">actions/checkout#1977</a></li>
<li>Documentation update - add recommended permissions to Readme by <a
href="https://github.com/benwells"><code>@​benwells</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2043">actions/checkout#2043</a></li>
<li>Adjust positioning of user email note and permissions heading by <a
href="https://github.com/joshmgross"><code>@​joshmgross</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2044">actions/checkout#2044</a></li>
<li>Update README.md by <a
href="https://github.com/nebuk89"><code>@​nebuk89</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2194">actions/checkout#2194</a></li>
<li>Update CODEOWNERS for actions by <a
href="https://github.com/TingluoHuang"><code>@​TingluoHuang</code></a>
in <a
href="https://redirect.github.com/actions/checkout/pull/2224">actions/checkout#2224</a></li>
<li>Update package dependencies by <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2236">actions/checkout#2236</a></li>
</ul>
<h2>v4.2.2</h2>
<ul>
<li><code>url-helper.ts</code> now leverages well-known environment
variables by <a href="https://github.com/jww3"><code>@​jww3</code></a>
in <a
href="https://redirect.github.com/actions/checkout/pull/1941">actions/checkout#1941</a></li>
<li>Expand unit test coverage for <code>isGhes</code> by <a
href="https://github.com/jww3"><code>@​jww3</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1946">actions/checkout#1946</a></li>
</ul>
<h2>v4.2.1</h2>
<ul>
<li>Check out other refs/* by commit if provided, fall back to ref by <a
href="https://github.com/orhantoy"><code>@​orhantoy</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1924">actions/checkout#1924</a></li>
</ul>
<h2>v4.2.0</h2>
<ul>
<li>Add Ref and Commit outputs by <a
href="https://github.com/lucacome"><code>@​lucacome</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1180">actions/checkout#1180</a></li>
<li>Dependency updates by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>- <a
href="https://redirect.github.com/actions/checkout/pull/1777">actions/checkout#1777</a>,
<a
href="https://redirect.github.com/actions/checkout/pull/1872">actions/checkout#1872</a></li>
</ul>
<h2>v4.1.7</h2>
<ul>
<li>Bump the minor-npm-dependencies group across 1 directory with 4
updates by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1739">actions/checkout#1739</a></li>
<li>Bump actions/checkout from 3 to 4 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1697">actions/checkout#1697</a></li>
<li>Check out other refs/* by commit by <a
href="https://github.com/orhantoy"><code>@​orhantoy</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1774">actions/checkout#1774</a></li>
<li>Pin actions/checkout's own workflows to a known, good, stable
version. by <a href="https://github.com/jww3"><code>@​jww3</code></a> in
<a
href="https://redirect.github.com/actions/checkout/pull/1776">actions/checkout#1776</a></li>
</ul>
<h2>v4.1.6</h2>
<ul>
<li>Check platform to set archive extension appropriately by <a
href="https://github.com/cory-miller"><code>@​cory-miller</code></a> in
<a
href="https://redirect.github.com/actions/checkout/pull/1732">actions/checkout#1732</a></li>
</ul>
<h2>v4.1.5</h2>
<ul>
<li>Update NPM dependencies by <a
href="https://github.com/cory-miller"><code>@​cory-miller</code></a> in
<a
href="https://redirect.github.com/actions/checkout/pull/1703">actions/checkout#1703</a></li>
<li>Bump github/codeql-action from 2 to 3 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1694">actions/checkout#1694</a></li>
<li>Bump actions/setup-node from 1 to 4 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1696">actions/checkout#1696</a></li>
<li>Bump actions/upload-artifact from 2 to 4 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1695">actions/checkout#1695</a></li>
<li>README: Suggest <code>user.email</code> to be
<code>41898282+github-actions[bot]@users.noreply.github.com</code> by <a
href="https://github.com/cory-miller"><code>@​cory-miller</code></a> in
<a
href="https://redirect.github.com/actions/checkout/pull/1707">actions/checkout#1707</a></li>
</ul>
<h2>v4.1.4</h2>
<ul>
<li>Disable <code>extensions.worktreeConfig</code> when disabling
<code>sparse-checkout</code> by <a
href="https://github.com/jww3"><code>@​jww3</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1692">actions/checkout#1692</a></li>
<li>Add dependabot config by <a
href="https://github.com/cory-miller"><code>@​cory-miller</code></a> in
<a
href="https://redirect.github.com/actions/checkout/pull/1688">actions/checkout#1688</a></li>
<li>Bump the minor-actions-dependencies group with 2 updates by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1693">actions/checkout#1693</a></li>
<li>Bump word-wrap from 1.2.3 to 1.2.5 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1643">actions/checkout#1643</a></li>
</ul>
<h2>v4.1.3</h2>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/actions/checkout/commit/08c6903cd8c0fde910a37f88322edcfb5dd907a8"><code>08c6903</code></a>
Prepare v5.0.0 release (<a
href="https://redirect.github.com/actions/checkout/issues/2238">#2238</a>)</li>
<li><a
href="https://github.com/actions/checkout/commit/9f265659d3bb64ab1440b03b12f4d47a24320917"><code>9f26565</code></a>
Update actions checkout to use node 24 (<a
href="https://redirect.github.com/actions/checkout/issues/2226">#2226</a>)</li>
<li>See full diff in <a
href="https://github.com/actions/checkout/compare/v4...v5">compare
view</a></li>
</ul>
</details>
<br />


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<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
---
 .github/workflows/build.yml                   | 18 ++++++------
 .github/workflows/codeql-analysis.yml         |  2 +-
 .github/workflows/gen-issue-velocity.yml      |  2 +-
 .github/workflows/info-needed-closer.yml      |  2 +-
 .github/workflows/issue-labels.yml            |  2 +-
 .github/workflows/pr-check.yml                | 28 +++++++++----------
 .../workflows/test-plan-item-validator.yml    |  2 +-
 .github/workflows/triage-info-needed.yml      |  4 +--
 8 files changed, 30 insertions(+), 30 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 16f398f5a166..6d122b77288b 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -84,12 +84,12 @@ jobs:
           #     vsix-target: alpine-arm64
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
 
       - name: Checkout Python Environment Tools
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: 'microsoft/python-environment-tools'
           path: 'python-env-tools'
@@ -115,7 +115,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
 
@@ -135,7 +135,7 @@ jobs:
           python-version: ${{ env.PYTHON_VERSION }}
 
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
 
@@ -178,7 +178,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           path: ${{ env.special-working-directory-relative }}
           persist-credentials: false
@@ -218,13 +218,13 @@ jobs:
         test-suite: [ts-unit, venv, single-workspace, multi-workspace, debugger, functional]
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           path: ${{ env.special-working-directory-relative }}
           persist-credentials: false
 
       - name: Checkout Python Environment Tools
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: 'microsoft/python-environment-tools'
           path: ${{ env.special-working-directory-relative }}/python-env-tools
@@ -426,12 +426,12 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
 
       - name: Checkout Python Environment Tools
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: 'microsoft/python-environment-tools'
           path: ${{ env.special-working-directory-relative }}/python-env-tools
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index cfd7c393e3ed..84de97c4dc9a 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -36,7 +36,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
 
diff --git a/.github/workflows/gen-issue-velocity.yml b/.github/workflows/gen-issue-velocity.yml
index 344fa161f02e..c28c6c368562 100644
--- a/.github/workflows/gen-issue-velocity.yml
+++ b/.github/workflows/gen-issue-velocity.yml
@@ -14,7 +14,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
 
diff --git a/.github/workflows/info-needed-closer.yml b/.github/workflows/info-needed-closer.yml
index d7efbd199451..33f53fc20dca 100644
--- a/.github/workflows/info-needed-closer.yml
+++ b/.github/workflows/info-needed-closer.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Actions
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: 'microsoft/vscode-github-triage-actions'
           path: ./actions
diff --git a/.github/workflows/issue-labels.yml b/.github/workflows/issue-labels.yml
index ec7d14d96cda..a78ca03d5ee9 100644
--- a/.github/workflows/issue-labels.yml
+++ b/.github/workflows/issue-labels.yml
@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Actions
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: 'microsoft/vscode-github-triage-actions'
           ref: stable
diff --git a/.github/workflows/pr-check.yml b/.github/workflows/pr-check.yml
index 368d9d0dbb73..b40c2c6946bf 100644
--- a/.github/workflows/pr-check.yml
+++ b/.github/workflows/pr-check.yml
@@ -57,12 +57,12 @@ jobs:
           #     vsix-target: alpine-arm64
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
 
       - name: Checkout Python Environment Tools
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: 'microsoft/python-environment-tools'
           path: 'python-env-tools'
@@ -87,7 +87,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
 
@@ -106,12 +106,12 @@ jobs:
           python-version: ${{ env.PYTHON_VERSION }}
 
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
 
       - name: Checkout Python Environment Tools
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: 'microsoft/python-environment-tools'
           path: 'python-env-tools'
@@ -162,7 +162,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           path: ${{ env.special-working-directory-relative }}
           persist-credentials: false
@@ -215,13 +215,13 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           path: ${{ env.special-working-directory-relative }}
           persist-credentials: false
 
       - name: Checkout Python Environment Tools
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: 'microsoft/python-environment-tools'
           path: ${{ env.special-working-directory-relative }}/python-env-tools
@@ -412,13 +412,13 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           path: ${{ env.special-working-directory-relative }}
           persist-credentials: false
 
       - name: Checkout Python Environment Tools
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: 'microsoft/python-environment-tools'
           path: ${{ env.special-working-directory-relative }}/python-env-tools
@@ -452,12 +452,12 @@ jobs:
     steps:
       # Need the source to have the tests available.
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
 
       - name: Checkout Python Environment Tools
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: 'microsoft/python-environment-tools'
           path: python-env-tools
@@ -488,12 +488,12 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           persist-credentials: false
 
       - name: Checkout Python Environment Tools
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: 'microsoft/python-environment-tools'
           path: python-env-tools
diff --git a/.github/workflows/test-plan-item-validator.yml b/.github/workflows/test-plan-item-validator.yml
index 91e8948cc784..6e62058b04c6 100644
--- a/.github/workflows/test-plan-item-validator.yml
+++ b/.github/workflows/test-plan-item-validator.yml
@@ -12,7 +12,7 @@ jobs:
     if: contains(github.event.issue.labels.*.name, 'testplan-item') || contains(github.event.issue.labels.*.name, 'invalid-testplan-item')
     steps:
       - name: Checkout Actions
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: 'microsoft/vscode-github-triage-actions'
           path: ./actions
diff --git a/.github/workflows/triage-info-needed.yml b/.github/workflows/triage-info-needed.yml
index f468fb293acd..f61d17c033d7 100644
--- a/.github/workflows/triage-info-needed.yml
+++ b/.github/workflows/triage-info-needed.yml
@@ -15,7 +15,7 @@ jobs:
       issues: write
     steps:
       - name: Checkout Actions
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: 'microsoft/vscode-github-triage-actions'
           ref: stable
@@ -39,7 +39,7 @@ jobs:
       issues: write
     steps:
       - name: Checkout Actions
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           repository: 'microsoft/vscode-github-triage-actions'
           ref: stable

From cc8b3de11cb4bb3f4709f60cc2008b0b72dc54f9 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Wed, 13 Aug 2025 14:48:33 -0700
Subject: [PATCH 048/178] msg for doctest unsupported (#25387)

fixes https://github.com/microsoft/vscode-python/issues/25380
---
 python_files/tests/unittestadapter/test_utils.py |  5 ++---
 python_files/unittestadapter/pvsc_utils.py       | 10 +++++++---
 2 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/python_files/tests/unittestadapter/test_utils.py b/python_files/tests/unittestadapter/test_utils.py
index b0341ce37b63..390b0779a44d 100644
--- a/python_files/tests/unittestadapter/test_utils.py
+++ b/python_files/tests/unittestadapter/test_utils.py
@@ -284,11 +284,10 @@ def test_build_empty_tree() -> None:
     start_dir = os.fsdecode(TEST_DATA_PATH)
     pattern = "does_not_exist*"
 
-    expected = None
-
     loader = unittest.TestLoader()
     suite = loader.discover(start_dir, pattern)
     tests, errors = build_test_tree(suite, start_dir)
 
-    assert expected == tests
+    assert tests is not None
+    assert tests.get("children") == []
     assert not errors
diff --git a/python_files/unittestadapter/pvsc_utils.py b/python_files/unittestadapter/pvsc_utils.py
index 017bad38966a..09a5ec9f3be5 100644
--- a/python_files/unittestadapter/pvsc_utils.py
+++ b/python_files/unittestadapter/pvsc_utils.py
@@ -3,6 +3,7 @@
 
 import argparse
 import atexit
+import doctest
 import enum
 import inspect
 import json
@@ -202,6 +203,12 @@ def build_test_tree(
     root = build_test_node(top_level_directory, directory_path.name, TestNodeTypeEnum.folder)
 
     for test_case in get_test_case(suite):
+        if isinstance(test_case, doctest.DocTestCase):
+            print(
+                "Skipping doctest as it is not supported for the extension. Test case: ", test_case
+            )
+            error = ["Skipping doctest as it is not supported for the extension."]
+            continue
         test_id = test_case.id()
         if test_id.startswith("unittest.loader._FailedTest"):
             error.append(str(test_case._exception))  # type: ignore  # noqa: SLF001
@@ -255,9 +262,6 @@ def build_test_tree(
             }  # concatenate class name and function test name
             current_node["children"].append(test_node)
 
-    if not root["children"]:
-        root = None
-
     return root, error
 
 

From 167e6e764763e7df88879e7afaa06cb9b21816b6 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Wed, 13 Aug 2025 15:17:58 -0700
Subject: [PATCH 049/178] update readme to include python-envs ext (#25388)

fixes https://github.com/microsoft/vscode-python/issues/25384
---
 README.md | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 9fe3669ce6b0..929bdef48892 100644
--- a/README.md
+++ b/README.md
@@ -11,11 +11,21 @@ The Python extension does offer [some support](https://github.com/microsoft/vsco
 
 The Python extension will automatically install the following extensions by default to provide the best Python development experience in VS Code:
 
-- [Pylance](https://marketplace.visualstudio.com/items?itemName=ms-python.vscode-pylance) - to provide performant Python language support
-- [Python Debugger](https://marketplace.visualstudio.com/items?itemName=ms-python.debugpy) - to provide a seamless debug experience with debugpy
+- [Pylance](https://marketplace.visualstudio.com/items?itemName=ms-python.vscode-pylance) – performant Python language support
+- [Python Debugger](https://marketplace.visualstudio.com/items?itemName=ms-python.debugpy) – seamless debug experience with debugpy
+- [Python Environments](https://marketplace.visualstudio.com/items?itemName=ms-python.vscode-python-envs) – dedicated environment management (see below)
 
 These extensions are optional dependencies, meaning the Python extension will remain fully functional if they fail to be installed. Any or all of these extensions can be [disabled](https://code.visualstudio.com/docs/editor/extension-marketplace#_disable-an-extension) or [uninstalled](https://code.visualstudio.com/docs/editor/extension-marketplace#_uninstall-an-extension) at the expense of some features. Extensions installed through the marketplace are subject to the [Marketplace Terms of Use](https://cdn.vsassets.io/v/M146_20190123.39/_content/Microsoft-Visual-Studio-Marketplace-Terms-of-Use.pdf).
 
+### About the Python Environments Extension
+
+You may now see that the **Python Environments Extension** is installed for you, but it may or may not be "enabled" in your VS Code experience. Enablement is controlled by the setting `"python.useEnvironmentsExtension": true` (or `false`).
+
+- If you set this setting to `true`, you will manually opt in to using the Python Environments Extension for environment management.
+- If you do not have this setting specified, you may be randomly assigned to have it turned on as we roll it out until it becomes the default experience for all users.
+
+The Python Environments Extension is still under active development and experimentation. Its goal is to provide a dedicated view and improved workflows for creating, deleting, and switching between Python environments, as well as managing packages. If you have feedback, please let us know via [issues](https://github.com/microsoft/vscode-python/issues).
+
 ## Extensibility
 
 The Python extension provides pluggable access points for extensions that extend various feature areas to further improve your Python development experience. These extensions are all optional and depend on your project configuration and preferences.

From 3df36ecb26e4b3c3d3bed982c34e5d1a2498f3b9 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Wed, 20 Aug 2025 11:01:05 -0700
Subject: [PATCH 050/178] bug: use executeInFileDir and launchArgs settings
 with envs ext (#25405)

helps with a part of
https://github.com/microsoft/vscode-python-environments/issues/709
---
 .../codeExecution/codeExecutionManager.ts     | 25 +++++++++----------
 1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/src/client/terminals/codeExecution/codeExecutionManager.ts b/src/client/terminals/codeExecution/codeExecutionManager.ts
index 740256ca78b3..30e5b7facd2d 100644
--- a/src/client/terminals/codeExecution/codeExecutionManager.ts
+++ b/src/client/terminals/codeExecution/codeExecutionManager.ts
@@ -5,7 +5,7 @@
 
 import { inject, injectable } from 'inversify';
 import { Disposable, EventEmitter, Terminal, Uri } from 'vscode';
-
+import * as path from 'path';
 import { ICommandManager, IDocumentManager } from '../../common/application/types';
 import { Commands } from '../../common/constants';
 import '../../common/extensions';
@@ -130,6 +130,15 @@ export class CodeExecutionManager implements ICodeExecutionManager {
         if (!fileToExecute) {
             return;
         }
+
+        // Check on setting terminal.executeInFileDir
+        const pythonSettings = this.configSettings.getSettings(file);
+        let cwd = pythonSettings.terminal.executeInFileDir ? path.dirname(fileToExecute.fsPath) : undefined;
+
+        // Check on setting terminal.launchArgs
+        const launchArgs = pythonSettings.terminal.launchArgs;
+        const totalArgs = [...launchArgs, fileToExecute.fsPath.fileToCommandArgumentForPythonExt()];
+
         const fileAfterSave = await codeExecutionHelper.saveFileIfDirty(fileToExecute);
         if (fileAfterSave) {
             fileToExecute = fileAfterSave;
@@ -138,19 +147,9 @@ export class CodeExecutionManager implements ICodeExecutionManager {
         const show = this.shouldTerminalFocusOnStart(fileToExecute);
         let terminal: Terminal | undefined;
         if (dedicated) {
-            terminal = await runInDedicatedTerminal(
-                fileToExecute,
-                [fileToExecute.fsPath.fileToCommandArgumentForPythonExt()],
-                undefined,
-                show,
-            );
+            terminal = await runInDedicatedTerminal(fileToExecute, totalArgs, cwd, show);
         } else {
-            terminal = await runInTerminal(
-                fileToExecute,
-                [fileToExecute.fsPath.fileToCommandArgumentForPythonExt()],
-                undefined,
-                show,
-            );
+            terminal = await runInTerminal(fileToExecute, totalArgs, cwd, show);
         }
 
         if (terminal) {

From ebc683abd492a73fe9c707094e39ab18ae8f6bd4 Mon Sep 17 00:00:00 2001
From: Raymond Zhao <7199958+rzhao271@users.noreply.github.com>
Date: Wed, 20 Aug 2025 15:06:58 -0700
Subject: [PATCH 051/178] chore: update tmp (#25404)

---
 package-lock.json                             | 57 +++----------------
 package.json                                  |  2 +-
 src/client/common/platform/fs-temp.ts         | 24 +++-----
 src/test/common/platform/fs-temp.unit.test.ts | 17 +++---
 4 files changed, 28 insertions(+), 72 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 86e84f48b311..9a52111abc5c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -27,7 +27,7 @@
                 "semver": "^7.5.2",
                 "stack-trace": "0.0.10",
                 "sudo-prompt": "^9.2.1",
-                "tmp": "^0.0.33",
+                "tmp": "^0.2.5",
                 "uint64be": "^3.0.0",
                 "unicode": "^14.0.0",
                 "vscode-debugprotocol": "^1.28.0",
@@ -2514,18 +2514,6 @@
                 "node": "*"
             }
         },
-        "node_modules/@vscode/vsce/node_modules/tmp": {
-            "version": "0.2.1",
-            "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.2.1.tgz",
-            "integrity": "sha512-76SUhtfqR2Ijn+xllcI5P1oyannHNHByD80W1q447gU3mp9G9PSpGdWmjUOHRDPiHYacIk66W7ubDTuPF3BEtQ==",
-            "dev": true,
-            "dependencies": {
-                "rimraf": "^3.0.0"
-            },
-            "engines": {
-                "node": ">=8.17.0"
-            }
-        },
         "node_modules/@webassemblyjs/ast": {
             "version": "1.12.1",
             "resolved": "https://registry.npmjs.org/@webassemblyjs/ast/-/ast-1.12.1.tgz",
@@ -11155,14 +11143,6 @@
             "integrity": "sha1-hUNzx/XCMVkU/Jv8a9gjj92h7Cc=",
             "dev": true
         },
-        "node_modules/os-tmpdir": {
-            "version": "1.0.2",
-            "resolved": "https://registry.npmjs.org/os-tmpdir/-/os-tmpdir-1.0.2.tgz",
-            "integrity": "sha1-u+Z0BseaqFxc/sdm/lc0VV36EnQ=",
-            "engines": {
-                "node": ">=0.10.0"
-            }
-        },
         "node_modules/p-cancelable": {
             "version": "0.4.1",
             "resolved": "https://registry.npmjs.org/p-cancelable/-/p-cancelable-0.4.1.tgz",
@@ -13374,14 +13354,12 @@
             }
         },
         "node_modules/tmp": {
-            "version": "0.0.33",
-            "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.0.33.tgz",
-            "integrity": "sha512-jRCJlojKnZ3addtTOjdIqoRuPEKBvNXcGYqzO6zWZX8KfKEpnGY5jfggJQ3EjKuu8D4bJRr0y+cYJFmYbImXGw==",
-            "dependencies": {
-                "os-tmpdir": "~1.0.2"
-            },
+            "version": "0.2.5",
+            "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.2.5.tgz",
+            "integrity": "sha512-voyz6MApa1rQGUxT3E+BK7/ROe8itEx7vD8/HEvt4xwXucvQ5G5oeEiHkmHZJuBO21RpOf+YYm9MOivj709jow==",
+            "license": "MIT",
             "engines": {
-                "node": ">=0.6.0"
+                "node": ">=14.14"
             }
         },
         "node_modules/to-absolute-glob": {
@@ -16951,15 +16929,6 @@
                     "requires": {
                         "brace-expansion": "^1.1.7"
                     }
-                },
-                "tmp": {
-                    "version": "0.2.1",
-                    "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.2.1.tgz",
-                    "integrity": "sha512-76SUhtfqR2Ijn+xllcI5P1oyannHNHByD80W1q447gU3mp9G9PSpGdWmjUOHRDPiHYacIk66W7ubDTuPF3BEtQ==",
-                    "dev": true,
-                    "requires": {
-                        "rimraf": "^3.0.0"
-                    }
                 }
             }
         },
@@ -23574,11 +23543,6 @@
             "integrity": "sha1-hUNzx/XCMVkU/Jv8a9gjj92h7Cc=",
             "dev": true
         },
-        "os-tmpdir": {
-            "version": "1.0.2",
-            "resolved": "https://registry.npmjs.org/os-tmpdir/-/os-tmpdir-1.0.2.tgz",
-            "integrity": "sha1-u+Z0BseaqFxc/sdm/lc0VV36EnQ="
-        },
         "p-cancelable": {
             "version": "0.4.1",
             "resolved": "https://registry.npmjs.org/p-cancelable/-/p-cancelable-0.4.1.tgz",
@@ -25244,12 +25208,9 @@
             }
         },
         "tmp": {
-            "version": "0.0.33",
-            "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.0.33.tgz",
-            "integrity": "sha512-jRCJlojKnZ3addtTOjdIqoRuPEKBvNXcGYqzO6zWZX8KfKEpnGY5jfggJQ3EjKuu8D4bJRr0y+cYJFmYbImXGw==",
-            "requires": {
-                "os-tmpdir": "~1.0.2"
-            }
+            "version": "0.2.5",
+            "resolved": "https://registry.npmjs.org/tmp/-/tmp-0.2.5.tgz",
+            "integrity": "sha512-voyz6MApa1rQGUxT3E+BK7/ROe8itEx7vD8/HEvt4xwXucvQ5G5oeEiHkmHZJuBO21RpOf+YYm9MOivj709jow=="
         },
         "to-absolute-glob": {
             "version": "2.0.2",
diff --git a/package.json b/package.json
index f113890ad97d..e07b3fc7983e 100644
--- a/package.json
+++ b/package.json
@@ -1713,7 +1713,7 @@
         "semver": "^7.5.2",
         "stack-trace": "0.0.10",
         "sudo-prompt": "^9.2.1",
-        "tmp": "^0.0.33",
+        "tmp": "^0.2.5",
         "uint64be": "^3.0.0",
         "unicode": "^14.0.0",
         "vscode-debugprotocol": "^1.28.0",
diff --git a/src/client/common/platform/fs-temp.ts b/src/client/common/platform/fs-temp.ts
index 32b57df15387..60dde040f454 100644
--- a/src/client/common/platform/fs-temp.ts
+++ b/src/client/common/platform/fs-temp.ts
@@ -5,14 +5,7 @@ import * as tmp from 'tmp';
 import { ITempFileSystem, TemporaryFile } from './types';
 
 interface IRawTempFS {
-    // TODO (https://github.com/microsoft/vscode/issues/84517)
-    //   This functionality has been requested for the
-    //   VS Code FS API (vscode.workspace.fs.*).
-    file(
-        config: tmp.Options,
-
-        callback?: (err: any, path: string, fd: number, cleanupCallback: () => void) => void,
-    ): void;
+    fileSync(config?: tmp.Options): tmp.SynchrounousResult;
 }
 
 // Operations related to temporary files and directories.
@@ -35,14 +28,13 @@ export class TemporaryFileSystem implements ITempFileSystem {
             mode,
         };
         return new Promise<TemporaryFile>((resolve, reject) => {
-            this.raw.file(opts, (err, filename, _fd, cleanUp) => {
-                if (err) {
-                    return reject(err);
-                }
-                resolve({
-                    filePath: filename,
-                    dispose: cleanUp,
-                });
+            const { name, removeCallback } = this.raw.fileSync(opts);
+            if (!name) {
+                return reject(new Error('Failed to create temp file'));
+            }
+            resolve({
+                filePath: name,
+                dispose: removeCallback,
             });
         });
     }
diff --git a/src/test/common/platform/fs-temp.unit.test.ts b/src/test/common/platform/fs-temp.unit.test.ts
index bfc8284b33d6..29b4e5f42b12 100644
--- a/src/test/common/platform/fs-temp.unit.test.ts
+++ b/src/test/common/platform/fs-temp.unit.test.ts
@@ -7,11 +7,14 @@ import { TemporaryFileSystem } from '../../../client/common/platform/fs-temp';
 
 interface IDeps {
     // tmp module
-    file(
-        config: { postfix?: string; mode?: number },
-
-        callback?: (err: any, path: string, fd: number, cleanupCallback: () => void) => void,
-    ): void;
+    fileSync(config: {
+        postfix?: string;
+        mode?: number;
+    }): {
+        name: string;
+        fd: number;
+        removeCallback(): void;
+    };
 }
 
 suite('FileSystem - temp files', () => {
@@ -28,7 +31,7 @@ suite('FileSystem - temp files', () => {
     suite('createFile', () => {
         test(`fails if the raw call fails`, async () => {
             const failure = new Error('oops');
-            deps.setup((d) => d.file({ postfix: '.tmp', mode: undefined }, TypeMoq.It.isAny()))
+            deps.setup((d) => d.fileSync({ postfix: '.tmp', mode: undefined }))
                 // fail with an arbitrary error
                 .throws(failure);
 
@@ -40,7 +43,7 @@ suite('FileSystem - temp files', () => {
 
         test(`fails if the raw call "returns" an error`, async () => {
             const failure = new Error('oops');
-            deps.setup((d) => d.file({ postfix: '.tmp', mode: undefined }, TypeMoq.It.isAny())).callback((_cfg, cb) =>
+            deps.setup((d) => d.fileSync({ postfix: '.tmp', mode: undefined })).callback((_cfg, cb) =>
                 cb(failure, '...', -1, () => {}),
             );
 

From 6181f44c38c92ee25b2bfd6364233de9c015fddd Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Mon, 25 Aug 2025 11:47:25 -0700
Subject: [PATCH 052/178] fix interpreter conversion to legacy api (#25417)

fixes https://github.com/microsoft/vscode-python-environments/issues/508
---
 src/client/envExt/api.legacy.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/client/envExt/api.legacy.ts b/src/client/envExt/api.legacy.ts
index 0f942a13eea2..d1a9f404d541 100644
--- a/src/client/envExt/api.legacy.ts
+++ b/src/client/envExt/api.legacy.ts
@@ -77,13 +77,13 @@ function toLegacyType(env: PythonEnvironment): PythonEnvironmentLegacy {
     const ver = parseVersion(env.version);
     const envType = toEnvironmentType(env);
     return {
-        id: env.environmentPath.fsPath,
+        id: env.execInfo.run.executable,
         displayName: env.displayName,
         detailedDisplayName: env.name,
         envType,
         envPath: env.sysPrefix,
         type: getEnvType(envType),
-        path: env.environmentPath.fsPath,
+        path: env.execInfo.run.executable,
         version: {
             raw: env.version,
             major: ver.major,

From c102bbd49a3d9438cfbd49068cfd3a7ed84f4254 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Fri, 29 Aug 2025 11:14:47 -0700
Subject: [PATCH 053/178] add additional msgs for python envs ext add (#25426)

assist with making it more visible that the environments extension is
now installed by default
---
 README.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index 929bdef48892..ffc73d3232ed 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Python extension for Visual Studio Code
 
-A [Visual Studio Code](https://code.visualstudio.com/) [extension](https://marketplace.visualstudio.com/VSCode) with rich support for the [Python language](https://www.python.org/) (for all [actively supported Python versions](https://devguide.python.org/versions/#supported-versions)), providing access points for extensions to seamlessly integrate and offer support for IntelliSense (Pylance), debugging (Python Debugger), formatting, linting, code navigation, refactoring, variable explorer, test explorer, and more!
+A [Visual Studio Code](https://code.visualstudio.com/) [extension](https://marketplace.visualstudio.com/VSCode) with rich support for the [Python language](https://www.python.org/) (for all [actively supported Python versions](https://devguide.python.org/versions/#supported-versions)), providing access points for extensions to seamlessly integrate and offer support for IntelliSense (Pylance), debugging (Python Debugger), formatting, linting, code navigation, refactoring, variable explorer, test explorer, environment management (**NEW** Python Environments Extension).
 
 ## Support for [vscode.dev](https://vscode.dev/)
 
@@ -13,7 +13,7 @@ The Python extension will automatically install the following extensions by defa
 
 - [Pylance](https://marketplace.visualstudio.com/items?itemName=ms-python.vscode-pylance) – performant Python language support
 - [Python Debugger](https://marketplace.visualstudio.com/items?itemName=ms-python.debugpy) – seamless debug experience with debugpy
-- [Python Environments](https://marketplace.visualstudio.com/items?itemName=ms-python.vscode-python-envs) – dedicated environment management (see below)
+- **(NEW)** [Python Environments](https://marketplace.visualstudio.com/items?itemName=ms-python.vscode-python-envs) – dedicated environment management (see below)
 
 These extensions are optional dependencies, meaning the Python extension will remain fully functional if they fail to be installed. Any or all of these extensions can be [disabled](https://code.visualstudio.com/docs/editor/extension-marketplace#_disable-an-extension) or [uninstalled](https://code.visualstudio.com/docs/editor/extension-marketplace#_uninstall-an-extension) at the expense of some features. Extensions installed through the marketplace are subject to the [Marketplace Terms of Use](https://cdn.vsassets.io/v/M146_20190123.39/_content/Microsoft-Visual-Studio-Marketplace-Terms-of-Use.pdf).
 

From b9248c46317a5855f14cd83aa508fe49631b313d Mon Sep 17 00:00:00 2001
From: Don Jayamanne <don.jayamanne@outlook.com>
Date: Tue, 2 Sep 2025 09:38:49 +1000
Subject: [PATCH 054/178] Be explicit about the fact that Tools are specific to
 Python (#25403)

Fixes https://github.com/microsoft/vscode/issues/262069
---
 package.json | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/package.json b/package.json
index e07b3fc7983e..cc8bed68ddb5 100644
--- a/package.json
+++ b/package.json
@@ -1502,7 +1502,7 @@
                 "name": "get_python_environment_details",
                 "displayName": "Get Python Environment Info",
                 "userDescription": "%python.languageModelTools.get_python_environment_details.userDescription%",
-                "modelDescription": "This tool will retrieve the details of the Python Environment for the specified file or workspace. The details returned include the 1. Type of Environment (conda, venv, etec), 2. Version of Python, 3. List of all installed packages with their versions. ALWAYS call configure_python_environment before using this tool.",
+                "modelDescription": "This tool will retrieve the details of the Python Environment for the specified file or workspace. The details returned include the 1. Type of Python Environment (conda, venv, etec), 2. Version of Python, 3. List of all installed Python packages with their versions. ALWAYS call configure_python_environment before using this tool.",
                 "toolReferenceName": "getPythonEnvironmentInfo",
                 "tags": [
                     "python",
@@ -1552,7 +1552,7 @@
                 "name": "install_python_packages",
                 "displayName": "Install Python Package",
                 "userDescription": "%python.languageModelTools.install_python_packages.userDescription%",
-                "modelDescription": "Installs Python packages in the given workspace. Use this tool to install packages in the user's chosen environment. ALWAYS call configure_python_environment before using this tool.",
+                "modelDescription": "Installs Python packages in the given workspace. Use this tool to install Python packages in the user's chosen Python environment. ALWAYS call configure_python_environment before using this tool.",
                 "toolReferenceName": "installPythonPackage",
                 "tags": [
                     "python",
@@ -1571,7 +1571,7 @@
                             "items": {
                                 "type": "string"
                             },
-                            "description": "The list of packages to install."
+                            "description": "The list of Python packages to install."
                         },
                         "resourcePath": {
                             "type": "string",

From 6235a0226cd4e005d6fe7a5da31da2bef88fa9d0 Mon Sep 17 00:00:00 2001
From: Anthony Kim <62267334+anthonykim1@users.noreply.github.com>
Date: Fri, 5 Sep 2025 09:43:18 -0700
Subject: [PATCH 055/178] bump 2025.14.0, update pet (#25444)

---
 build/azure-pipeline.stable.yml | 2 +-
 package-lock.json               | 4 ++--
 package.json                    | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/build/azure-pipeline.stable.yml b/build/azure-pipeline.stable.yml
index ce67c69a3df4..71399281efd9 100644
--- a/build/azure-pipeline.stable.yml
+++ b/build/azure-pipeline.stable.yml
@@ -128,7 +128,7 @@ extends:
           project: 'Monaco'
           definition: 593
           buildVersionToDownload: 'latestFromBranch'
-          branchName: 'refs/heads/release/2025.12'
+          branchName: 'refs/heads/release/2025.14'
           targetPath: '$(Build.SourcesDirectory)/python-env-tools/bin'
           artifactName: 'bin-$(buildTarget)'
           itemPattern: |
diff --git a/package-lock.json b/package-lock.json
index 9a52111abc5c..3c8d361e0897 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "python",
-    "version": "2025.13.0-dev",
+    "version": "2025.14.0",
     "lockfileVersion": 2,
     "requires": true,
     "packages": {
         "": {
             "name": "python",
-            "version": "2025.13.0-dev",
+            "version": "2025.14.0",
             "license": "MIT",
             "dependencies": {
                 "@iarna/toml": "^2.2.5",
diff --git a/package.json b/package.json
index cc8bed68ddb5..dd89ca4b5685 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
     "name": "python",
     "displayName": "Python",
     "description": "Python language support with extension access points for IntelliSense (Pylance), Debugging (Python Debugger), linting, formatting, refactoring, unit tests, and more.",
-    "version": "2025.13.0-dev",
+    "version": "2025.14.0",
     "featureFlags": {
         "usingNewInterpreterStorage": true
     },

From 4e0633b63952b6d6e11fd79e26739868b97a52b6 Mon Sep 17 00:00:00 2001
From: Anthony Kim <62267334+anthonykim1@users.noreply.github.com>
Date: Fri, 5 Sep 2025 10:22:22 -0700
Subject: [PATCH 056/178] bump to 2025.15 (#25445)

---
 package-lock.json | 4 ++--
 package.json      | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 3c8d361e0897..be908b0b0f11 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "python",
-    "version": "2025.14.0",
+    "version": "2025.15.0-dev",
     "lockfileVersion": 2,
     "requires": true,
     "packages": {
         "": {
             "name": "python",
-            "version": "2025.14.0",
+            "version": "2025.15.0-dev",
             "license": "MIT",
             "dependencies": {
                 "@iarna/toml": "^2.2.5",
diff --git a/package.json b/package.json
index dd89ca4b5685..0530726310f2 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
     "name": "python",
     "displayName": "Python",
     "description": "Python language support with extension access points for IntelliSense (Pylance), Debugging (Python Debugger), linting, formatting, refactoring, unit tests, and more.",
-    "version": "2025.14.0",
+    "version": "2025.15.0-dev",
     "featureFlags": {
         "usingNewInterpreterStorage": true
     },

From 8c21493b92f15842faf8e1616d960a8ac8a0e7d4 Mon Sep 17 00:00:00 2001
From: fourdim <59462000+fourdim@users.noreply.github.com>
Date: Tue, 9 Sep 2025 03:44:49 -0400
Subject: [PATCH 057/178] Fix native REPL search path (#25372)

Resolves: https://github.com/microsoft/vscode-python/issues/24361
---
 python_files/python_server.py | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/python_files/python_server.py b/python_files/python_server.py
index 1689d9b8f7f9..77b43c692dc3 100644
--- a/python_files/python_server.py
+++ b/python_files/python_server.py
@@ -5,6 +5,7 @@
 import sys
 import traceback
 import uuid
+from pathlib import Path
 from typing import Dict, List, Optional, Union
 
 STDIN = sys.stdin
@@ -172,6 +173,16 @@ def get_headers():
 
 
 if __name__ == "__main__":
+    # https://docs.python.org/3/tutorial/modules.html#the-module-search-path
+    # The directory containing the input script (or the current directory when no file is specified).
+    # Here we emulate the same behavior like no file is specified.
+    input_script_dir = Path(__file__).parent
+    script_dir_str = str(input_script_dir)
+    if script_dir_str in sys.path:
+        sys.path.remove(script_dir_str)
+    while "" in sys.path:
+        sys.path.remove("")
+    sys.path.insert(0, "")
     while not STDIN.closed:
         try:
             headers = get_headers()

From 5eb18d3a225e48ec23feadfdb987c3cd7e2c50e0 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Thu, 11 Sep 2025 14:20:05 -0700
Subject: [PATCH 058/178] Bump actions/setup-node from 4 to 5 (#25439)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 4
to 5.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/actions/setup-node/releases">actions/setup-node's
releases</a>.</em></p>
<blockquote>
<h2>v5.0.0</h2>
<h2>What's Changed</h2>
<h3>Breaking Changes</h3>
<ul>
<li>Upgrade action to use node24 by <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a
href="https://redirect.github.com/actions/setup-node/pull/1325">actions/setup-node#1325</a></li>
</ul>
<p>Make sure your runner is updated to this version or newer to use this
release. v2.327.1 <a
href="https://github.com/actions/runner/releases/tag/v2.327.1">Release
Notes</a></p>
<h3>Dependency Upgrades</h3>
<ul>
<li>Upgrade <code>@​octokit/request-error</code> and
<code>@​actions/github</code> by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-node/pull/1227">actions/setup-node#1227</a></li>
<li>Upgrade uuid from 9.0.1 to 11.1.0 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-node/pull/1273">actions/setup-node#1273</a></li>
<li>Upgrade undici from 5.28.5 to 5.29.0 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-node/pull/1295">actions/setup-node#1295</a></li>
<li>Upgrade form-data to bring in fix for critical vulnerability by <a
href="https://github.com/gowridurgad"><code>@​gowridurgad</code></a> in
<a
href="https://redirect.github.com/actions/setup-node/pull/1332">actions/setup-node#1332</a></li>
<li>Upgrade actions/checkout from 4 to 5 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-node/pull/1345">actions/setup-node#1345</a></li>
</ul>
<h3>Enhancement:</h3>
<ul>
<li>Enhance caching in setup-node with automatic package manager
detection by <a
href="https://github.com/priya-kinthali"><code>@​priya-kinthali</code></a>
in <a
href="https://redirect.github.com/actions/setup-node/pull/1348">actions/setup-node#1348</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a
href="https://github.com/priya-kinthali"><code>@​priya-kinthali</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/setup-node/pull/1348">actions/setup-node#1348</a></li>
<li><a href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/setup-node/pull/1325">actions/setup-node#1325</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/setup-node/compare/v4...v5.0.0">https://github.com/actions/setup-node/compare/v4...v5.0.0</a></p>
<h2>v4.4.0</h2>
<h2>What's Changed</h2>
<h3>Bug fixes:</h3>
<ul>
<li>Make eslint-compact matcher compatible with Stylelint by <a
href="https://github.com/FloEdelmann"><code>@​FloEdelmann</code></a>
in <a
href="https://redirect.github.com/actions/setup-node/pull/98">actions/setup-node#98</a></li>
<li>Add support for indented eslint output by <a
href="https://github.com/fregante"><code>@​fregante</code></a> in <a
href="https://redirect.github.com/actions/setup-node/pull/1245">actions/setup-node#1245</a></li>
</ul>
<h3>Enhancement:</h3>
<ul>
<li>Support private mirrors by <a
href="https://github.com/marco-ippolito"><code>@​marco-ippolito</code></a>
in <a
href="https://redirect.github.com/actions/setup-node/pull/1240">actions/setup-node#1240</a></li>
</ul>
<h3>Dependency update:</h3>
<ul>
<li>Upgrade <code>@​action/cache</code> from 4.0.2 to 4.0.3 by <a
href="https://github.com/aparnajyothi-y"><code>@​aparnajyothi-y</code></a>
in <a
href="https://redirect.github.com/actions/setup-node/pull/1262">actions/setup-node#1262</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a
href="https://github.com/FloEdelmann"><code>@​FloEdelmann</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/setup-node/pull/98">actions/setup-node#98</a></li>
<li><a href="https://github.com/fregante"><code>@​fregante</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/setup-node/pull/1245">actions/setup-node#1245</a></li>
<li><a
href="https://github.com/marco-ippolito"><code>@​marco-ippolito</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/setup-node/pull/1240">actions/setup-node#1240</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/setup-node/compare/v4...v4.4.0">https://github.com/actions/setup-node/compare/v4...v4.4.0</a></p>
<h2>v4.3.0</h2>
<h2>What's Changed</h2>
<h3>Dependency updates</h3>
<ul>
<li>Upgrade <code>@​actions/glob</code> from 0.4.0 to 0.5.0 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/setup-node/pull/1200">actions/setup-node#1200</a></li>
<li>Upgrade <code>@​action/cache</code> from 4.0.0 to 4.0.2 by <a
href="https://github.com/gowridurgad"><code>@​gowridurgad</code></a> in
<a
href="https://redirect.github.com/actions/setup-node/pull/1251">actions/setup-node#1251</a></li>
<li>Upgrade <code>@​vercel/ncc</code> from 0.38.1 to 0.38.3 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/setup-node/pull/1203">actions/setup-node#1203</a></li>
<li>Upgrade <code>@​actions/tool-cache</code> from 2.0.1 to 2.0.2 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/setup-node/pull/1220">actions/setup-node#1220</a></li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/actions/setup-node/commit/a0853c24544627f65ddf259abe73b1d18a591444"><code>a0853c2</code></a>
Bump actions/checkout from 4 to 5 (<a
href="https://redirect.github.com/actions/setup-node/issues/1345">#1345</a>)</li>
<li><a
href="https://github.com/actions/setup-node/commit/b7234cc9fe124f0f4932554b4e5284543083ae7b"><code>b7234cc</code></a>
Upgrade action to use node24 (<a
href="https://redirect.github.com/actions/setup-node/issues/1325">#1325</a>)</li>
<li><a
href="https://github.com/actions/setup-node/commit/d7a11313b581b306c961b506cfc8971208bb03f6"><code>d7a1131</code></a>
Enhance caching in setup-node with automatic package manager detection
(<a
href="https://redirect.github.com/actions/setup-node/issues/1348">#1348</a>)</li>
<li><a
href="https://github.com/actions/setup-node/commit/5e2628c959b9ade56971c0afcebbe5332d44b398"><code>5e2628c</code></a>
Bumps form-data (<a
href="https://redirect.github.com/actions/setup-node/issues/1332">#1332</a>)</li>
<li><a
href="https://github.com/actions/setup-node/commit/65beceff8e91358525397bdce9103d999507ab03"><code>65becef</code></a>
Bump undici from 5.28.5 to 5.29.0 (<a
href="https://redirect.github.com/actions/setup-node/issues/1295">#1295</a>)</li>
<li><a
href="https://github.com/actions/setup-node/commit/7e24a656e1c7a0d6f3eaef8d8e84ae379a5b035b"><code>7e24a65</code></a>
Bump uuid from 9.0.1 to 11.1.0 (<a
href="https://redirect.github.com/actions/setup-node/issues/1273">#1273</a>)</li>
<li><a
href="https://github.com/actions/setup-node/commit/08f58d1471bff7f3a07d167b4ad7df25d5fcfcb6"><code>08f58d1</code></a>
Bump <code>@​octokit/request-error</code> and
<code>@​actions/github</code> (<a
href="https://redirect.github.com/actions/setup-node/issues/1227">#1227</a>)</li>
<li>See full diff in <a
href="https://github.com/actions/setup-node/compare/v4...v5">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=actions/setup-node&package-manager=github_actions&previous-version=4&new-version=5)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
that have been made to it
- `@dependabot merge` will merge this PR after your CI passes on it
- `@dependabot squash and merge` will squash and merge this PR after
your CI passes on it
- `@dependabot cancel merge` will cancel a previously requested merge
and block automerging
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot close` will close this PR and stop Dependabot recreating
it. You can achieve the same result by closing it manually
- `@dependabot show <dependency name> ignore conditions` will show all
of the ignore conditions of the specified dependency
- `@dependabot ignore this major version` will close this PR and stop
Dependabot creating any more for this major version (unless you reopen
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Dependabot creating any more for this minor version (unless you reopen
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- `@dependabot ignore this dependency` will close this PR and stop
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</details>

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 .github/workflows/build.yml    | 2 +-
 .github/workflows/pr-check.yml | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 6d122b77288b..dc95df9d0bfc 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -236,7 +236,7 @@ jobs:
           sparse-checkout-cone-mode: false
 
       - name: Install Node
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v5
         with:
           node-version: ${{ env.NODE_VERSION }}
           cache: 'npm'
diff --git a/.github/workflows/pr-check.yml b/.github/workflows/pr-check.yml
index b40c2c6946bf..bfa12e1724fc 100644
--- a/.github/workflows/pr-check.yml
+++ b/.github/workflows/pr-check.yml
@@ -233,7 +233,7 @@ jobs:
           sparse-checkout-cone-mode: false
 
       - name: Install Node
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v5
         with:
           node-version: ${{ env.NODE_VERSION }}
           cache: 'npm'
@@ -505,7 +505,7 @@ jobs:
           sparse-checkout-cone-mode: false
 
       - name: Install Node
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v5
         with:
           node-version: ${{ env.NODE_VERSION }}
           cache: 'npm'

From c171088c4e773522e93c458fc4f02c43ae5f0041 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Thu, 11 Sep 2025 14:20:33 -0700
Subject: [PATCH 059/178] Bump actions/github-script from 7 to 8 (#25443)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps [actions/github-script](https://github.com/actions/github-script)
from 7 to 8.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/actions/github-script/releases">actions/github-script's
releases</a>.</em></p>
<blockquote>
<h2>v8.0.0</h2>
<h2>What's Changed</h2>
<ul>
<li>Update Node.js version support to 24.x by <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a
href="https://redirect.github.com/actions/github-script/pull/637">actions/github-script#637</a></li>
<li>README for updating actions/github-script from v7 to v8 by <a
href="https://github.com/sneha-krip"><code>@​sneha-krip</code></a> in <a
href="https://redirect.github.com/actions/github-script/pull/653">actions/github-script#653</a></li>
</ul>
<h2>⚠️ Minimum Compatible Runner Version</h2>
<p><strong>v2.327.1</strong><br />
<a
href="https://github.com/actions/runner/releases/tag/v2.327.1">Release
Notes</a></p>
<p>Make sure your runner is updated to this version or newer to use this
release.</p>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/github-script/pull/637">actions/github-script#637</a></li>
<li><a
href="https://github.com/sneha-krip"><code>@​sneha-krip</code></a> made
their first contribution in <a
href="https://redirect.github.com/actions/github-script/pull/653">actions/github-script#653</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/github-script/compare/v7.1.0...v8.0.0">https://github.com/actions/github-script/compare/v7.1.0...v8.0.0</a></p>
<h2>v7.1.0</h2>
<h2>What's Changed</h2>
<ul>
<li>Upgrade husky to v9 by <a
href="https://github.com/benelan"><code>@​benelan</code></a> in <a
href="https://redirect.github.com/actions/github-script/pull/482">actions/github-script#482</a></li>
<li>Add workflow file for publishing releases to immutable action
package by <a
href="https://github.com/Jcambass"><code>@​Jcambass</code></a> in <a
href="https://redirect.github.com/actions/github-script/pull/485">actions/github-script#485</a></li>
<li>Upgrade IA Publish by <a
href="https://github.com/Jcambass"><code>@​Jcambass</code></a> in <a
href="https://redirect.github.com/actions/github-script/pull/486">actions/github-script#486</a></li>
<li>Fix workflow status badges by <a
href="https://github.com/joshmgross"><code>@​joshmgross</code></a> in <a
href="https://redirect.github.com/actions/github-script/pull/497">actions/github-script#497</a></li>
<li>Update usage of <code>actions/upload-artifact</code> by <a
href="https://github.com/joshmgross"><code>@​joshmgross</code></a> in <a
href="https://redirect.github.com/actions/github-script/pull/512">actions/github-script#512</a></li>
<li>Clear up package name confusion by <a
href="https://github.com/joshmgross"><code>@​joshmgross</code></a> in <a
href="https://redirect.github.com/actions/github-script/pull/514">actions/github-script#514</a></li>
<li>Update dependencies with <code>npm audit fix</code> by <a
href="https://github.com/joshmgross"><code>@​joshmgross</code></a> in <a
href="https://redirect.github.com/actions/github-script/pull/515">actions/github-script#515</a></li>
<li>Specify that the used script is JavaScript by <a
href="https://github.com/timotk"><code>@​timotk</code></a> in <a
href="https://redirect.github.com/actions/github-script/pull/478">actions/github-script#478</a></li>
<li>chore: Add Dependabot for NPM and Actions by <a
href="https://github.com/nschonni"><code>@​nschonni</code></a> in <a
href="https://redirect.github.com/actions/github-script/pull/472">actions/github-script#472</a></li>
<li>Define <code>permissions</code> in workflows and update actions by
<a href="https://github.com/joshmgross"><code>@​joshmgross</code></a> in
<a
href="https://redirect.github.com/actions/github-script/pull/531">actions/github-script#531</a></li>
<li>chore: Add Dependabot for .github/actions/install-dependencies by <a
href="https://github.com/nschonni"><code>@​nschonni</code></a> in <a
href="https://redirect.github.com/actions/github-script/pull/532">actions/github-script#532</a></li>
<li>chore: Remove .vscode settings by <a
href="https://github.com/nschonni"><code>@​nschonni</code></a> in <a
href="https://redirect.github.com/actions/github-script/pull/533">actions/github-script#533</a></li>
<li>ci: Use github/setup-licensed by <a
href="https://github.com/nschonni"><code>@​nschonni</code></a> in <a
href="https://redirect.github.com/actions/github-script/pull/473">actions/github-script#473</a></li>
<li>make octokit instance available as octokit on top of github, to make
it easier to seamlessly copy examples from GitHub rest api or octokit
documentations by <a
href="https://github.com/iamstarkov"><code>@​iamstarkov</code></a> in <a
href="https://redirect.github.com/actions/github-script/pull/508">actions/github-script#508</a></li>
<li>Remove <code>octokit</code> README updates for v7 by <a
href="https://github.com/joshmgross"><code>@​joshmgross</code></a> in <a
href="https://redirect.github.com/actions/github-script/pull/557">actions/github-script#557</a></li>
<li>docs: add &quot;exec&quot; usage examples by <a
href="https://github.com/neilime"><code>@​neilime</code></a> in <a
href="https://redirect.github.com/actions/github-script/pull/546">actions/github-script#546</a></li>
<li>Bump ruby/setup-ruby from 1.213.0 to 1.222.0 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/github-script/pull/563">actions/github-script#563</a></li>
<li>Bump ruby/setup-ruby from 1.222.0 to 1.229.0 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/github-script/pull/575">actions/github-script#575</a></li>
<li>Clearly document passing inputs to the <code>script</code> by <a
href="https://github.com/joshmgross"><code>@​joshmgross</code></a> in <a
href="https://redirect.github.com/actions/github-script/pull/603">actions/github-script#603</a></li>
<li>Update README.md by <a
href="https://github.com/nebuk89"><code>@​nebuk89</code></a> in <a
href="https://redirect.github.com/actions/github-script/pull/610">actions/github-script#610</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/benelan"><code>@​benelan</code></a> made
their first contribution in <a
href="https://redirect.github.com/actions/github-script/pull/482">actions/github-script#482</a></li>
<li><a href="https://github.com/Jcambass"><code>@​Jcambass</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/github-script/pull/485">actions/github-script#485</a></li>
<li><a href="https://github.com/timotk"><code>@​timotk</code></a> made
their first contribution in <a
href="https://redirect.github.com/actions/github-script/pull/478">actions/github-script#478</a></li>
<li><a
href="https://github.com/iamstarkov"><code>@​iamstarkov</code></a> made
their first contribution in <a
href="https://redirect.github.com/actions/github-script/pull/508">actions/github-script#508</a></li>
<li><a href="https://github.com/neilime"><code>@​neilime</code></a> made
their first contribution in <a
href="https://redirect.github.com/actions/github-script/pull/546">actions/github-script#546</a></li>
<li><a href="https://github.com/nebuk89"><code>@​nebuk89</code></a> made
their first contribution in <a
href="https://redirect.github.com/actions/github-script/pull/610">actions/github-script#610</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/github-script/compare/v7...v7.1.0">https://github.com/actions/github-script/compare/v7...v7.1.0</a></p>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/actions/github-script/commit/ed597411d8f924073f98dfc5c65a23a2325f34cd"><code>ed59741</code></a>
Merge pull request <a
href="https://redirect.github.com/actions/github-script/issues/653">#653</a>
from actions/sneha-krip/readme-for-v8</li>
<li><a
href="https://github.com/actions/github-script/commit/2dc352e4baefd91bec0d06f6ae2f1045d1687ca3"><code>2dc352e</code></a>
Bold minimum Actions Runner version in README</li>
<li><a
href="https://github.com/actions/github-script/commit/01e118c8d0d22115597e46514b5794e7bc3d56f1"><code>01e118c</code></a>
Update README for Node 24 runtime requirements</li>
<li><a
href="https://github.com/actions/github-script/commit/8b222ac82eda86dcad7795c9d49b839f7bf5b18b"><code>8b222ac</code></a>
Apply suggestion from <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a></li>
<li><a
href="https://github.com/actions/github-script/commit/adc0eeac992408a7b276994ca87edde1c8ce4d25"><code>adc0eea</code></a>
README for updating actions/github-script from v7 to v8</li>
<li><a
href="https://github.com/actions/github-script/commit/20fe497b3fe0c7be8aae5c9df711ac716dc9c425"><code>20fe497</code></a>
Merge pull request <a
href="https://redirect.github.com/actions/github-script/issues/637">#637</a>
from actions/node24</li>
<li><a
href="https://github.com/actions/github-script/commit/e7b7f222b11a03e8b695c4c7afba89a02ea20164"><code>e7b7f22</code></a>
update licenses</li>
<li><a
href="https://github.com/actions/github-script/commit/2c81ba05f308415d095291e6eeffe983d822345b"><code>2c81ba0</code></a>
Update Node.js version support to 24.x</li>
<li><a
href="https://github.com/actions/github-script/commit/f28e40c7f34bde8b3046d885e986cb6290c5673b"><code>f28e40c</code></a>
Merge pull request <a
href="https://redirect.github.com/actions/github-script/issues/610">#610</a>
from actions/nebuk89-patch-1</li>
<li><a
href="https://github.com/actions/github-script/commit/1ae9958572fde544457e4d51aed5ea044e8936f3"><code>1ae9958</code></a>
Update README.md</li>
<li>Additional commits viewable in <a
href="https://github.com/actions/github-script/compare/v7...v8">compare
view</a></li>
</ul>
</details>
<br />


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You can trigger Dependabot actions by commenting on this PR:
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---
 .github/workflows/pr-file-check.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/pr-file-check.yml b/.github/workflows/pr-file-check.yml
index 688c48d865d8..da5d6fa8f696 100644
--- a/.github/workflows/pr-file-check.yml
+++ b/.github/workflows/pr-file-check.yml
@@ -44,7 +44,7 @@ jobs:
           failure-message: 'TypeScript code was edited without also editing a ${file-pattern} file; see the Testing page in our wiki on testing guidelines (the ${skip-label} label can be used to pass this check)'
 
       - name: 'Ensure PR has an associated issue'
-        uses: actions/github-script@v7
+        uses: actions/github-script@v8
         with:
           script: |
             const labels = context.payload.pull_request.labels.map(label => label.name);

From b1d4e61c27063321ef69171aab2fed86e26c0d3e Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Thu, 11 Sep 2025 14:21:26 -0700
Subject: [PATCH 060/178] Bump actions/setup-python from 5 to 6 in
 /.github/actions/lint (#25437)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps [actions/setup-python](https://github.com/actions/setup-python)
from 5 to 6.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/actions/setup-python/releases">actions/setup-python's
releases</a>.</em></p>
<blockquote>
<h2>v6.0.0</h2>
<h2>What's Changed</h2>
<h3>Breaking Changes</h3>
<ul>
<li>Upgrade to node 24 by <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a
href="https://redirect.github.com/actions/setup-python/pull/1164">actions/setup-python#1164</a></li>
</ul>
<p>Make sure your runner is on version v2.327.1 or later to ensure
compatibility with this release. <a
href="https://github.com/actions/runner/releases/tag/v2.327.1">See
Release Notes</a></p>
<h3>Enhancements:</h3>
<ul>
<li>Add support for <code>pip-version</code> by <a
href="https://github.com/priyagupta108"><code>@​priyagupta108</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1129">actions/setup-python#1129</a></li>
<li>Enhance reading from .python-version by <a
href="https://github.com/krystof-k"><code>@​krystof-k</code></a> in <a
href="https://redirect.github.com/actions/setup-python/pull/787">actions/setup-python#787</a></li>
<li>Add version parsing from Pipfile by <a
href="https://github.com/aradkdj"><code>@​aradkdj</code></a> in <a
href="https://redirect.github.com/actions/setup-python/pull/1067">actions/setup-python#1067</a></li>
</ul>
<h3>Bug fixes:</h3>
<ul>
<li>Clarify pythonLocation behaviour for PyPy and GraalPy in environment
variables by <a
href="https://github.com/aparnajyothi-y"><code>@​aparnajyothi-y</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1183">actions/setup-python#1183</a></li>
<li>Change missing cache directory error to warning by <a
href="https://github.com/aparnajyothi-y"><code>@​aparnajyothi-y</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1182">actions/setup-python#1182</a></li>
<li>Add Architecture-Specific PATH Management for Python with --user
Flag on Windows by <a
href="https://github.com/aparnajyothi-y"><code>@​aparnajyothi-y</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1122">actions/setup-python#1122</a></li>
<li>Include python version in PyPy python-version output by <a
href="https://github.com/cdce8p"><code>@​cdce8p</code></a> in <a
href="https://redirect.github.com/actions/setup-python/pull/1110">actions/setup-python#1110</a></li>
<li>Update docs: clarification on pip authentication with setup-python
by <a
href="https://github.com/priya-kinthali"><code>@​priya-kinthali</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1156">actions/setup-python#1156</a></li>
</ul>
<h3>Dependency updates:</h3>
<ul>
<li>Upgrade idna from 2.9 to 3.7 in /<strong>tests</strong>/data by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-python/pull/843">actions/setup-python#843</a></li>
<li>Upgrade form-data to fix critical vulnerabilities <a
href="https://redirect.github.com/actions/setup-python/issues/182">#182</a>
&amp; <a
href="https://redirect.github.com/actions/setup-python/issues/183">#183</a>
by <a
href="https://github.com/aparnajyothi-y"><code>@​aparnajyothi-y</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1163">actions/setup-python#1163</a></li>
<li>Upgrade setuptools to 78.1.1 to fix path traversal vulnerability in
PackageIndex.download by <a
href="https://github.com/aparnajyothi-y"><code>@​aparnajyothi-y</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1165">actions/setup-python#1165</a></li>
<li>Upgrade actions/checkout from 4 to 5 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-python/pull/1181">actions/setup-python#1181</a></li>
<li>Upgrade <code>@​actions/tool-cache</code> from 2.0.1 to 2.0.2 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-python/pull/1095">actions/setup-python#1095</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/krystof-k"><code>@​krystof-k</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/setup-python/pull/787">actions/setup-python#787</a></li>
<li><a href="https://github.com/cdce8p"><code>@​cdce8p</code></a> made
their first contribution in <a
href="https://redirect.github.com/actions/setup-python/pull/1110">actions/setup-python#1110</a></li>
<li><a href="https://github.com/aradkdj"><code>@​aradkdj</code></a> made
their first contribution in <a
href="https://redirect.github.com/actions/setup-python/pull/1067">actions/setup-python#1067</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/setup-python/compare/v5...v6.0.0">https://github.com/actions/setup-python/compare/v5...v6.0.0</a></p>
<h2>v5.6.0</h2>
<h2>What's Changed</h2>
<ul>
<li>Workflow updates related to Ubuntu 20.04 by <a
href="https://github.com/aparnajyothi-y"><code>@​aparnajyothi-y</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1065">actions/setup-python#1065</a></li>
<li>Fix for Candidate Not Iterable Error by <a
href="https://github.com/aparnajyothi-y"><code>@​aparnajyothi-y</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1082">actions/setup-python#1082</a></li>
<li>Upgrade semver and <code>@​types/semver</code> by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/setup-python/pull/1091">actions/setup-python#1091</a></li>
<li>Upgrade prettier from 2.8.8 to 3.5.3 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/setup-python/pull/1046">actions/setup-python#1046</a></li>
<li>Upgrade ts-jest from 29.1.2 to 29.3.2 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/setup-python/pull/1081">actions/setup-python#1081</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/setup-python/compare/v5...v5.6.0">https://github.com/actions/setup-python/compare/v5...v5.6.0</a></p>
<h2>v5.5.0</h2>
<h2>What's Changed</h2>
<h3>Enhancements:</h3>
<ul>
<li>Support free threaded Python versions like '3.13t' by <a
href="https://github.com/colesbury"><code>@​colesbury</code></a> in <a
href="https://redirect.github.com/actions/setup-python/pull/973">actions/setup-python#973</a></li>
<li>Enhance Workflows: Include ubuntu-arm runners, Add e2e Testing for
free threaded and Upgrade <code>@​action/cache</code> from 4.0.0 to
4.0.3 by <a
href="https://github.com/priya-kinthali"><code>@​priya-kinthali</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1056">actions/setup-python#1056</a></li>
<li>Add support for .tool-versions file in setup-python by <a
href="https://github.com/mahabaleshwars"><code>@​mahabaleshwars</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1043">actions/setup-python#1043</a></li>
</ul>
<h3>Bug fixes:</h3>
<ul>
<li>Fix architecture for pypy on Linux ARM64 by <a
href="https://github.com/mayeut"><code>@​mayeut</code></a> in <a
href="https://redirect.github.com/actions/setup-python/pull/1011">actions/setup-python#1011</a>
This update maps arm64 to aarch64 for Linux ARM64 PyPy
installations.</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/actions/setup-python/commit/e797f83bcb11b83ae66e0230d6156d7c80228e7c"><code>e797f83</code></a>
Upgrade to node 24 (<a
href="https://redirect.github.com/actions/setup-python/issues/1164">#1164</a>)</li>
<li><a
href="https://github.com/actions/setup-python/commit/3d1e2d2ca0a067f27da6fec484fce7f5256def85"><code>3d1e2d2</code></a>
Revert &quot;Enhance cache-dependency-path handling to support files
outside the w...</li>
<li><a
href="https://github.com/actions/setup-python/commit/65b071217a8539818fdb8b54561bcbae40380a54"><code>65b0712</code></a>
Clarify pythonLocation behavior for PyPy and GraalPy in environment
variables...</li>
<li><a
href="https://github.com/actions/setup-python/commit/5b668cf7652160527499ee14ceaff4be9306cb88"><code>5b668cf</code></a>
Bump actions/checkout from 4 to 5 (<a
href="https://redirect.github.com/actions/setup-python/issues/1181">#1181</a>)</li>
<li><a
href="https://github.com/actions/setup-python/commit/f62a0e252fe7114e86949abfa6e1e89f85bb38c2"><code>f62a0e2</code></a>
Change missing cache directory error to warning (<a
href="https://redirect.github.com/actions/setup-python/issues/1182">#1182</a>)</li>
<li><a
href="https://github.com/actions/setup-python/commit/9322b3ca74000aeb2c01eb777b646334015ddd72"><code>9322b3c</code></a>
Upgrade setuptools to 78.1.1 to fix path traversal vulnerability in
PackageIn...</li>
<li><a
href="https://github.com/actions/setup-python/commit/fbeb884f69f0ac1c0257302f62aa524c2824b649"><code>fbeb884</code></a>
Bump form-data to fix critical vulnerabilities <a
href="https://redirect.github.com/actions/setup-python/issues/182">#182</a>
&amp; <a
href="https://redirect.github.com/actions/setup-python/issues/183">#183</a>
(<a
href="https://redirect.github.com/actions/setup-python/issues/1163">#1163</a>)</li>
<li><a
href="https://github.com/actions/setup-python/commit/03bb6152f4f691b9d64579a1bd791904a083c452"><code>03bb615</code></a>
Bump idna from 2.9 to 3.7 in /<strong>tests</strong>/data (<a
href="https://redirect.github.com/actions/setup-python/issues/843">#843</a>)</li>
<li><a
href="https://github.com/actions/setup-python/commit/36da51d563b70a972897150555bb025096d65565"><code>36da51d</code></a>
Add version parsing from Pipfile (<a
href="https://redirect.github.com/actions/setup-python/issues/1067">#1067</a>)</li>
<li><a
href="https://github.com/actions/setup-python/commit/3c6f142cc0036d53007e92fa1e327564a4cfb7aa"><code>3c6f142</code></a>
update documentation (<a
href="https://redirect.github.com/actions/setup-python/issues/1156">#1156</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/actions/setup-python/compare/v5...v6">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=actions/setup-python&package-manager=github_actions&previous-version=5&new-version=6)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
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<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 .github/actions/lint/action.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/actions/lint/action.yml b/.github/actions/lint/action.yml
index 9992b442c276..3a989fddb982 100644
--- a/.github/actions/lint/action.yml
+++ b/.github/actions/lint/action.yml
@@ -36,7 +36,7 @@ runs:
       shell: bash
 
     - name: Install Python
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@v6
       with:
         python-version: '3.x'
         cache: 'pip'

From 3ab937e8ae313fd8ef2265fc97df881987054308 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Thu, 11 Sep 2025 14:21:47 -0700
Subject: [PATCH 061/178] Bump typing-extensions from 4.14.1 to 4.15.0 (#25422)

Bumps [typing-extensions](https://github.com/python/typing_extensions)
from 4.14.1 to 4.15.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/python/typing_extensions/releases">typing-extensions's
releases</a>.</em></p>
<blockquote>
<h2>4.15.0</h2>
<p>No user-facing changes since 4.15.0rc1.</p>
<p>New features since 4.14.1:</p>
<ul>
<li>Add the <code>@typing_extensions.disjoint_base</code> decorator, as
specified
in PEP 800. Patch by Jelle Zijlstra.</li>
<li>Add <code>typing_extensions.type_repr</code>, a backport of
<a
href="https://docs.python.org/3.14/library/annotationlib.html#annotationlib.type_repr"><code>annotationlib.type_repr</code></a>,
introduced in Python 3.14 (CPython PR <a
href="https://redirect.github.com/python/cpython/pull/124551">#124551</a>,
originally by Jelle Zijlstra). Patch by Semyon Moroz.</li>
<li>Fix behavior of type params in
<code>typing_extensions.evaluate_forward_ref</code>. Backport of
CPython PR <a
href="https://redirect.github.com/python/cpython/pull/137227">#137227</a>
by Jelle Zijlstra.</li>
</ul>
<h2>4.15.0rc1</h2>
<ul>
<li>Add the <code>@typing_extensions.disjoint_base</code> decorator, as
specified
in PEP 800. Patch by Jelle Zijlstra.</li>
<li>Add <code>typing_extensions.type_repr</code>, a backport of
<a
href="https://docs.python.org/3.14/library/annotationlib.html#annotationlib.type_repr"><code>annotationlib.type_repr</code></a>,
introduced in Python 3.14 (CPython PR <a
href="https://redirect.github.com/python/cpython/pull/124551">#124551</a>,
originally by Jelle Zijlstra). Patch by Semyon Moroz.</li>
<li>Fix behavior of type params in
<code>typing_extensions.evaluate_forward_ref</code>. Backport of
CPython PR <a
href="https://redirect.github.com/python/cpython/pull/137227">#137227</a>
by Jelle Zijlstra.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/python/typing_extensions/blob/main/CHANGELOG.md">typing-extensions's
changelog</a>.</em></p>
<blockquote>
<h1>Release 4.15.0 (August 25, 2025)</h1>
<p>No user-facing changes since 4.15.0rc1.</p>
<h1>Release 4.15.0rc1 (August 18, 2025)</h1>
<ul>
<li>Add the <code>@typing_extensions.disjoint_base</code> decorator, as
specified
in PEP 800. Patch by Jelle Zijlstra.</li>
<li>Add <code>typing_extensions.type_repr</code>, a backport of
<a
href="https://docs.python.org/3.14/library/annotationlib.html#annotationlib.type_repr"><code>annotationlib.type_repr</code></a>,
introduced in Python 3.14 (CPython PR <a
href="https://redirect.github.com/python/cpython/pull/124551">#124551</a>,
originally by Jelle Zijlstra). Patch by Semyon Moroz.</li>
<li>Fix behavior of type params in
<code>typing_extensions.evaluate_forward_ref</code>. Backport of
CPython PR <a
href="https://redirect.github.com/python/cpython/pull/137227">#137227</a>
by Jelle Zijlstra.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/python/typing_extensions/commit/9d1637e264b5c1a6b7acee3e907015f89b20c2c9"><code>9d1637e</code></a>
Prepare release 4.15.0 (<a
href="https://redirect.github.com/python/typing_extensions/issues/658">#658</a>)</li>
<li><a
href="https://github.com/python/typing_extensions/commit/4bd67c5be5d9443c7d33c314d02a56ee125eb88d"><code>4bd67c5</code></a>
Coverage: exclude some noise (<a
href="https://redirect.github.com/python/typing_extensions/issues/656">#656</a>)</li>
<li><a
href="https://github.com/python/typing_extensions/commit/e589a26da73b075c5276bae40b86db1af0144f84"><code>e589a26</code></a>
Coverage: add detailed report to job summary (<a
href="https://redirect.github.com/python/typing_extensions/issues/655">#655</a>)</li>
<li><a
href="https://github.com/python/typing_extensions/commit/67d37fed1298e050f74d5acc95b2621bd37837ad"><code>67d37fe</code></a>
Coverage: Implement fail_under (<a
href="https://redirect.github.com/python/typing_extensions/issues/654">#654</a>)</li>
<li><a
href="https://github.com/python/typing_extensions/commit/e9ae26f5286edee9262727755ecb9ad16e999192"><code>e9ae26f</code></a>
Don't delete previous coverage comment (<a
href="https://redirect.github.com/python/typing_extensions/issues/653">#653</a>)</li>
<li><a
href="https://github.com/python/typing_extensions/commit/ac80bb728a3006fc88ef7373b92f0c25cfcc7895"><code>ac80bb7</code></a>
Add Coverage workflow (<a
href="https://redirect.github.com/python/typing_extensions/issues/623">#623</a>)</li>
<li><a
href="https://github.com/python/typing_extensions/commit/abaaafd98c1cc7e5baf098ec287a3d22cb339670"><code>abaaafd</code></a>
Prepare release 4.15.0rc1 (<a
href="https://redirect.github.com/python/typing_extensions/issues/650">#650</a>)</li>
<li><a
href="https://github.com/python/typing_extensions/commit/98104053ea8d49bcdd247804e5fa9f73136acbd4"><code>9810405</code></a>
Add <code>@disjoint_base</code> (PEP 800) (<a
href="https://redirect.github.com/python/typing_extensions/issues/634">#634</a>)</li>
<li><a
href="https://github.com/python/typing_extensions/commit/7ee9e05fd484d06899ce56e80f5e1aa4c760fc03"><code>7ee9e05</code></a>
Backport type_params fix from CPython (<a
href="https://redirect.github.com/python/typing_extensions/issues/646">#646</a>)</li>
<li><a
href="https://github.com/python/typing_extensions/commit/1e8eb9c06ef51b3a1e1f05303a16feca13f5ed98"><code>1e8eb9c</code></a>
Do not refer to PEP 705 as being experimental (<a
href="https://redirect.github.com/python/typing_extensions/issues/648">#648</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/python/typing_extensions/compare/4.14.1...4.15.0">compare
view</a></li>
</ul>
</details>
<br />


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---
 requirements.in  | 2 +-
 requirements.txt | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/requirements.in b/requirements.in
index ba2339b1e966..8bbc9a0f3728 100644
--- a/requirements.in
+++ b/requirements.in
@@ -4,7 +4,7 @@
 # 2) uv pip compile --generate-hashes --upgrade requirements.in -o requirements.txt
 
 # Unittest test adapter
-typing-extensions==4.14.1
+typing-extensions==4.15.0
 
 # Fallback env creator for debian
 microvenv
diff --git a/requirements.txt b/requirements.txt
index 2e6b6ee07783..dddc2ee9691c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -46,9 +46,9 @@ tomli==2.2.1 \
     --hash=sha256:ece47d672db52ac607a3d9599a9d48dcb2f2f735c6c2d1f34130085bb12b112a \
     --hash=sha256:f4039b9cbc3048b2416cc57ab3bda989a6fcf9b36cf8937f01a6e731b64f80d7
     # via -r requirements.in
-typing-extensions==4.14.1 \
-    --hash=sha256:38b39f4aeeab64884ce9f74c94263ef78f3c22467c8724005483154c26648d36 \
-    --hash=sha256:d1e1e3b58374dc93031d6eda2420a48ea44a36c2b4766a4fdeb3710755731d76
+typing-extensions==4.15.0 \
+    --hash=sha256:0cea48d173cc12fa28ecabc3b837ea3cf6f38c6d1136f85cbaaf598984861466 \
+    --hash=sha256:f0fa19c6845758ab08074a0cfa8b7aecb71c999ca73d62883bc25cc018c4e548
     # via -r requirements.in
 zipp==3.21.0 \
     --hash=sha256:2c9958f6430a2040341a52eb608ed6dd93ef4392e02ffe219417c1b28b5dd1f4 \

From 30cd4e38b24043b7f32fa2194550dc6a1270028d Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Thu, 11 Sep 2025 14:22:12 -0700
Subject: [PATCH 062/178] Bump actions/setup-node from 4 to 5 in
 /.github/actions/lint (#25434)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[//]: # (dependabot-start)
⚠️  **Dependabot is rebasing this PR** ⚠️

Rebasing might not happen immediately, so don't worry if this takes some
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Note: if you make any changes to this PR yourself, they will take
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---

[//]: # (dependabot-end)

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 4
to 5.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/actions/setup-node/releases">actions/setup-node's
releases</a>.</em></p>
<blockquote>
<h2>v5.0.0</h2>
<h2>What's Changed</h2>
<h3>Breaking Changes</h3>
<ul>
<li>Upgrade action to use node24 by <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a
href="https://redirect.github.com/actions/setup-node/pull/1325">actions/setup-node#1325</a></li>
</ul>
<p>Make sure your runner is updated to this version or newer to use this
release. v2.327.1 <a
href="https://github.com/actions/runner/releases/tag/v2.327.1">Release
Notes</a></p>
<h3>Dependency Upgrades</h3>
<ul>
<li>Upgrade <code>@​octokit/request-error</code> and
<code>@​actions/github</code> by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-node/pull/1227">actions/setup-node#1227</a></li>
<li>Upgrade uuid from 9.0.1 to 11.1.0 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-node/pull/1273">actions/setup-node#1273</a></li>
<li>Upgrade undici from 5.28.5 to 5.29.0 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-node/pull/1295">actions/setup-node#1295</a></li>
<li>Upgrade form-data to bring in fix for critical vulnerability by <a
href="https://github.com/gowridurgad"><code>@​gowridurgad</code></a> in
<a
href="https://redirect.github.com/actions/setup-node/pull/1332">actions/setup-node#1332</a></li>
<li>Upgrade actions/checkout from 4 to 5 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-node/pull/1345">actions/setup-node#1345</a></li>
</ul>
<h3>Enhancement:</h3>
<ul>
<li>Enhance caching in setup-node with automatic package manager
detection by <a
href="https://github.com/priya-kinthali"><code>@​priya-kinthali</code></a>
in <a
href="https://redirect.github.com/actions/setup-node/pull/1348">actions/setup-node#1348</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a
href="https://github.com/priya-kinthali"><code>@​priya-kinthali</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/setup-node/pull/1348">actions/setup-node#1348</a></li>
<li><a href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/setup-node/pull/1325">actions/setup-node#1325</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/setup-node/compare/v4...v5.0.0">https://github.com/actions/setup-node/compare/v4...v5.0.0</a></p>
<h2>v4.4.0</h2>
<h2>What's Changed</h2>
<h3>Bug fixes:</h3>
<ul>
<li>Make eslint-compact matcher compatible with Stylelint by <a
href="https://github.com/FloEdelmann"><code>@​FloEdelmann</code></a>
in <a
href="https://redirect.github.com/actions/setup-node/pull/98">actions/setup-node#98</a></li>
<li>Add support for indented eslint output by <a
href="https://github.com/fregante"><code>@​fregante</code></a> in <a
href="https://redirect.github.com/actions/setup-node/pull/1245">actions/setup-node#1245</a></li>
</ul>
<h3>Enhancement:</h3>
<ul>
<li>Support private mirrors by <a
href="https://github.com/marco-ippolito"><code>@​marco-ippolito</code></a>
in <a
href="https://redirect.github.com/actions/setup-node/pull/1240">actions/setup-node#1240</a></li>
</ul>
<h3>Dependency update:</h3>
<ul>
<li>Upgrade <code>@​action/cache</code> from 4.0.2 to 4.0.3 by <a
href="https://github.com/aparnajyothi-y"><code>@​aparnajyothi-y</code></a>
in <a
href="https://redirect.github.com/actions/setup-node/pull/1262">actions/setup-node#1262</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a
href="https://github.com/FloEdelmann"><code>@​FloEdelmann</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/setup-node/pull/98">actions/setup-node#98</a></li>
<li><a href="https://github.com/fregante"><code>@​fregante</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/setup-node/pull/1245">actions/setup-node#1245</a></li>
<li><a
href="https://github.com/marco-ippolito"><code>@​marco-ippolito</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/setup-node/pull/1240">actions/setup-node#1240</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/setup-node/compare/v4...v4.4.0">https://github.com/actions/setup-node/compare/v4...v4.4.0</a></p>
<h2>v4.3.0</h2>
<h2>What's Changed</h2>
<h3>Dependency updates</h3>
<ul>
<li>Upgrade <code>@​actions/glob</code> from 0.4.0 to 0.5.0 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/setup-node/pull/1200">actions/setup-node#1200</a></li>
<li>Upgrade <code>@​action/cache</code> from 4.0.0 to 4.0.2 by <a
href="https://github.com/gowridurgad"><code>@​gowridurgad</code></a> in
<a
href="https://redirect.github.com/actions/setup-node/pull/1251">actions/setup-node#1251</a></li>
<li>Upgrade <code>@​vercel/ncc</code> from 0.38.1 to 0.38.3 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/setup-node/pull/1203">actions/setup-node#1203</a></li>
<li>Upgrade <code>@​actions/tool-cache</code> from 2.0.1 to 2.0.2 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/setup-node/pull/1220">actions/setup-node#1220</a></li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/actions/setup-node/commit/a0853c24544627f65ddf259abe73b1d18a591444"><code>a0853c2</code></a>
Bump actions/checkout from 4 to 5 (<a
href="https://redirect.github.com/actions/setup-node/issues/1345">#1345</a>)</li>
<li><a
href="https://github.com/actions/setup-node/commit/b7234cc9fe124f0f4932554b4e5284543083ae7b"><code>b7234cc</code></a>
Upgrade action to use node24 (<a
href="https://redirect.github.com/actions/setup-node/issues/1325">#1325</a>)</li>
<li><a
href="https://github.com/actions/setup-node/commit/d7a11313b581b306c961b506cfc8971208bb03f6"><code>d7a1131</code></a>
Enhance caching in setup-node with automatic package manager detection
(<a
href="https://redirect.github.com/actions/setup-node/issues/1348">#1348</a>)</li>
<li><a
href="https://github.com/actions/setup-node/commit/5e2628c959b9ade56971c0afcebbe5332d44b398"><code>5e2628c</code></a>
Bumps form-data (<a
href="https://redirect.github.com/actions/setup-node/issues/1332">#1332</a>)</li>
<li><a
href="https://github.com/actions/setup-node/commit/65beceff8e91358525397bdce9103d999507ab03"><code>65becef</code></a>
Bump undici from 5.28.5 to 5.29.0 (<a
href="https://redirect.github.com/actions/setup-node/issues/1295">#1295</a>)</li>
<li><a
href="https://github.com/actions/setup-node/commit/7e24a656e1c7a0d6f3eaef8d8e84ae379a5b035b"><code>7e24a65</code></a>
Bump uuid from 9.0.1 to 11.1.0 (<a
href="https://redirect.github.com/actions/setup-node/issues/1273">#1273</a>)</li>
<li><a
href="https://github.com/actions/setup-node/commit/08f58d1471bff7f3a07d167b4ad7df25d5fcfcb6"><code>08f58d1</code></a>
Bump <code>@​octokit/request-error</code> and
<code>@​actions/github</code> (<a
href="https://redirect.github.com/actions/setup-node/issues/1227">#1227</a>)</li>
<li>See full diff in <a
href="https://github.com/actions/setup-node/compare/v4...v5">compare
view</a></li>
</ul>
</details>
<br />


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---
 .github/actions/lint/action.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/actions/lint/action.yml b/.github/actions/lint/action.yml
index 3a989fddb982..9971c0fbcf96 100644
--- a/.github/actions/lint/action.yml
+++ b/.github/actions/lint/action.yml
@@ -10,7 +10,7 @@ runs:
   using: 'composite'
   steps:
     - name: Install Node
-      uses: actions/setup-node@v4
+      uses: actions/setup-node@v5
       with:
         node-version: ${{ inputs.node_version }}
         cache: 'npm'

From 3747439cf43fcde2b85a405320ed0bf4999d8109 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Thu, 11 Sep 2025 14:22:48 -0700
Subject: [PATCH 063/178] Bump jakebailey/pyright-action from 2.3.2 to 2.3.3
 (#25401)

Bumps
[jakebailey/pyright-action](https://github.com/jakebailey/pyright-action)
from 2.3.2 to 2.3.3.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/jakebailey/pyright-action/releases">jakebailey/pyright-action's
releases</a>.</em></p>
<blockquote>
<h2>v2.3.3</h2>
<ul>
<li>Fix lint (4599f31)</li>
<li>Replace jest-path-serializer (1349f1a)</li>
<li>Fix deps (f701448)</li>
<li>fmt (ec50111)</li>
<li>Update engines (41972b7)</li>
<li>Update github actions (<a
href="https://redirect.github.com/jakebailey/pyright-action/issues/180">#180</a>)
(86e183a)</li>
<li>Update actions/checkout action to v5 (<a
href="https://redirect.github.com/jakebailey/pyright-action/issues/190">#190</a>)
(8b711b9)</li>
<li>Update deps (9631dc2)</li>
<li>Update deps (fa0d678)</li>
<li>Update github actions (<a
href="https://redirect.github.com/jakebailey/pyright-action/issues/163">#163</a>)
(623784a)</li>
<li>Fix eslint (73a65bd)</li>
<li>Update deps (dee7200)</li>
<li>Update deps (ea37d1c)</li>
<li>Update nvmrc (fb32d81)</li>
<li>Update eslint (b0c5af5)</li>
<li>Update deps (f4851c1)</li>
<li>Update actions/cache action to v4.2.0 (<a
href="https://redirect.github.com/jakebailey/pyright-action/issues/159">#159</a>)
(57f6678)</li>
<li>Update codecov/codecov-action action to v5 (<a
href="https://redirect.github.com/jakebailey/pyright-action/issues/154">#154</a>)
(f572338)</li>
<li>Update github actions (<a
href="https://redirect.github.com/jakebailey/pyright-action/issues/146">#146</a>)
(b7d7f8e)</li>
<li>Update deps (b721321)</li>
<li>Update deps (4156862)</li>
<li>Update github actions (<a
href="https://redirect.github.com/jakebailey/pyright-action/issues/121">#121</a>)
(ec480a0)</li>
<li>Update deps (bfe39b3)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/jakebailey/pyright-action/commit/6cabc0f01c4994be48fd45cd9dbacdd6e1ee6e5e"><code>6cabc0f</code></a>
Release v2.3.3</li>
<li><a
href="https://github.com/jakebailey/pyright-action/commit/4599f312bb13efdae1e97a96f86ebbad378400e9"><code>4599f31</code></a>
Fix lint</li>
<li><a
href="https://github.com/jakebailey/pyright-action/commit/1349f1a874c68dcac8fabbdc6b9859dc1ab4b544"><code>1349f1a</code></a>
Replace jest-path-serializer</li>
<li><a
href="https://github.com/jakebailey/pyright-action/commit/f7014482b0c1525f90bd38b40d3dc23e1e449eda"><code>f701448</code></a>
Fix deps</li>
<li><a
href="https://github.com/jakebailey/pyright-action/commit/ec50111a6e24ebea4ead71e78bd82a69be35dc94"><code>ec50111</code></a>
fmt</li>
<li><a
href="https://github.com/jakebailey/pyright-action/commit/41972b75221920d2240f5a9f3de2bc3c80dfc174"><code>41972b7</code></a>
Update engines</li>
<li><a
href="https://github.com/jakebailey/pyright-action/commit/86e183a762469107e16ce815c79e77b5f867a0df"><code>86e183a</code></a>
Update github actions (<a
href="https://redirect.github.com/jakebailey/pyright-action/issues/180">#180</a>)</li>
<li><a
href="https://github.com/jakebailey/pyright-action/commit/8b711b9fc18e6f536ed3d41523c6bb86883ac81e"><code>8b711b9</code></a>
Update actions/checkout action to v5 (<a
href="https://redirect.github.com/jakebailey/pyright-action/issues/190">#190</a>)</li>
<li><a
href="https://github.com/jakebailey/pyright-action/commit/9631dc2f1ef38f9c4e37dcb4ecfc0b9fcd513f60"><code>9631dc2</code></a>
Update deps</li>
<li><a
href="https://github.com/jakebailey/pyright-action/commit/fa0d678573efdb6dd916b93d51fd6e7a3499217e"><code>fa0d678</code></a>
Update deps</li>
<li>Additional commits viewable in <a
href="https://github.com/jakebailey/pyright-action/compare/b5d50e5cde6547546a5c4ac92e416a8c2c1a1dfe...6cabc0f01c4994be48fd45cd9dbacdd6e1ee6e5e">compare
view</a></li>
</ul>
</details>
<br />


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You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 .github/workflows/build.yml    | 2 +-
 .github/workflows/pr-check.yml | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index dc95df9d0bfc..51aff82bfc6f 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -155,7 +155,7 @@ jobs:
           python -m pip install --upgrade -r build/test-requirements.txt
 
       - name: Run Pyright
-        uses: jakebailey/pyright-action@b5d50e5cde6547546a5c4ac92e416a8c2c1a1dfe # v2.3.2
+        uses: jakebailey/pyright-action@6cabc0f01c4994be48fd45cd9dbacdd6e1ee6e5e # v2.3.3
         with:
           version: 1.1.308
           working-directory: 'python_files'
diff --git a/.github/workflows/pr-check.yml b/.github/workflows/pr-check.yml
index bfa12e1724fc..07fb9c19ec67 100644
--- a/.github/workflows/pr-check.yml
+++ b/.github/workflows/pr-check.yml
@@ -138,7 +138,7 @@ jobs:
           python -m pip install --upgrade -r build/test-requirements.txt
 
       - name: Run Pyright
-        uses: jakebailey/pyright-action@b5d50e5cde6547546a5c4ac92e416a8c2c1a1dfe # v2.3.2
+        uses: jakebailey/pyright-action@6cabc0f01c4994be48fd45cd9dbacdd6e1ee6e5e # v2.3.3
         with:
           version: 1.1.308
           working-directory: 'python_files'

From ed276d08bbbac9890d66596253298ea28acd5257 Mon Sep 17 00:00:00 2001
From: Eric Masseran <rico.masseran@gmail.com>
Date: Thu, 11 Sep 2025 23:29:48 +0200
Subject: [PATCH 064/178] Upgrade jedi-language-server to 0.45.1 (#25450)

0.45.0 was added with
https://github.com/microsoft/vscode-python/pull/25006 but also brought
https://github.com/pappasam/jedi-language-server/issues/340

<img width="1492" height="341" alt="image"
src="https://github.com/user-attachments/assets/cd695197-d0d5-4191-95b9-f6ddc03e6b1e"
/>

v0.45.1 should workaround it.
---
 .../jedilsp_requirements/requirements.txt     | 49 ++++++++++---------
 1 file changed, 25 insertions(+), 24 deletions(-)

diff --git a/python_files/jedilsp_requirements/requirements.txt b/python_files/jedilsp_requirements/requirements.txt
index 0fc5cd76810f..e2599e7bbce4 100644
--- a/python_files/jedilsp_requirements/requirements.txt
+++ b/python_files/jedilsp_requirements/requirements.txt
@@ -6,32 +6,32 @@ attrs==25.3.0 \
     # via
     #   cattrs
     #   lsprotocol
-cattrs==24.1.3 \
-    --hash=sha256:981a6ef05875b5bb0c7fb68885546186d306f10f0f6718fe9b96c226e68821ff \
-    --hash=sha256:adf957dddd26840f27ffbd060a6c4dd3b2192c5b7c2c0525ef1bd8131d8a83f5
+cattrs==25.2.0 \
+    --hash=sha256:539d7eedee7d2f0706e4e109182ad096d608ba84633c32c75ef3458f1d11e8f1 \
+    --hash=sha256:f46c918e955db0177be6aa559068390f71988e877c603ae2e56c71827165cc06
     # via
     #   jedi-language-server
     #   lsprotocol
     #   pygls
-docstring-to-markdown==0.16 \
-    --hash=sha256:097bf502fdf040b0d019688a7cc1abb89b98196801448721740e8aa3e5075627 \
-    --hash=sha256:f92cc42357b2c932f70ca2ebc79f7805039a34011ad381c1b6ac3481e81596ce
+docstring-to-markdown==0.17 \
+    --hash=sha256:df72a112294c7492487c9da2451cae0faeee06e86008245c188c5761c9590ca3 \
+    --hash=sha256:fd7d5094aa83943bf5f9e1a13701866b7c452eac19765380dead666e36d3711c
     # via jedi-language-server
-exceptiongroup==1.2.2 \
-    --hash=sha256:3111b9d131c238bec2f8f516e123e14ba243563fb135d3fe885990585aa7795b \
-    --hash=sha256:47c2edf7c6738fafb49fd34290706d1a1a2f4d1c6df275526b62cbb4aa5393cc
+exceptiongroup==1.3.0 \
+    --hash=sha256:4d111e6e0c13d0644cad6ddaa7ed0261a0b36971f6d23e7ec9b4b9097da78a10 \
+    --hash=sha256:b241f5885f560bc56a59ee63ca4c6a8bfa46ae4ad651af316d4e81817bb9fd88
     # via cattrs
-importlib-metadata==8.6.1 \
-    --hash=sha256:02a89390c1e15fdfdc0d7c6b25cb3e62650d0494005c97d6f148bf5b9787525e \
-    --hash=sha256:310b41d755445d74569f993ccfc22838295d9fe005425094fad953d7f15c8580
+importlib-metadata==8.7.0 \
+    --hash=sha256:d13b81ad223b890aa16c5471f2ac3056cf76c5f10f82d6f9292f0b415f389000 \
+    --hash=sha256:e5dd1551894c77868a30651cef00984d50e1002d06942a7101d34870c5f02afd
     # via docstring-to-markdown
 jedi==0.19.2 \
     --hash=sha256:4770dc3de41bde3966b02eb84fbcf557fb33cce26ad23da12c742fb50ecb11f0 \
     --hash=sha256:a8ef22bde8490f57fe5c7681a3c83cb58874daf72b4784de3cce5b6ef6edb5b9
     # via jedi-language-server
-jedi-language-server==0.45.0 \
-    --hash=sha256:b44eb380f87c37935b91e4399f048dc935eb7d85829130fdbcecfdad61e1362b \
-    --hash=sha256:f9ffd662877324ff28720c770197514184801b049a2d2c43190a7708b061f397
+jedi-language-server==0.45.1 \
+    --hash=sha256:8c0c6b4eaeffdbb87be79e9897c9929ffeddf875dff7c1c36dd67768e294942b \
+    --hash=sha256:a1fcfba8008f2640e921937fcf1933c3961d74249341eba8b3ef9a0c3f817102
     # via -r python_files/jedilsp_requirements/requirements.in
 lsprotocol==2023.0.1 \
     --hash=sha256:c75223c9e4af2f24272b14c6375787438279369236cd568f596d4951052a60f2 \
@@ -39,9 +39,9 @@ lsprotocol==2023.0.1 \
     # via
     #   jedi-language-server
     #   pygls
-parso==0.8.4 \
-    --hash=sha256:a418670a20291dacd2dddc80c377c5c3791378ee1e8d12bffc35420643d43f18 \
-    --hash=sha256:eb3a7b58240fb99099a345571deecc0f9540ea5f4dd2fe14c2a99d6b281ab92d
+parso==0.8.5 \
+    --hash=sha256:034d7354a9a018bdce352f48b2a8a450f05e9d6ee85db84764e9b6bd96dafe5a \
+    --hash=sha256:646204b5ee239c396d040b90f9e272e9a8017c630092bf59980beb62fd033887
     # via jedi
 pygls==1.3.1 \
     --hash=sha256:140edceefa0da0e9b3c533547c892a42a7d2fd9217ae848c330c53d266a55018 \
@@ -49,14 +49,15 @@ pygls==1.3.1 \
     # via
     #   -r python_files/jedilsp_requirements/requirements.in
     #   jedi-language-server
-typing-extensions==4.13.2 \
-    --hash=sha256:a439e7c04b49fec3e5d3e2beaa21755cadbbdc391694e28ccdd36ca4a1408f8c \
-    --hash=sha256:e6c81219bd689f51865d9e372991c540bda33a0379d5573cddb9a3a23f7caaef
+typing-extensions==4.15.0 \
+    --hash=sha256:0cea48d173cc12fa28ecabc3b837ea3cf6f38c6d1136f85cbaaf598984861466 \
+    --hash=sha256:f0fa19c6845758ab08074a0cfa8b7aecb71c999ca73d62883bc25cc018c4e548
     # via
     #   cattrs
     #   docstring-to-markdown
+    #   exceptiongroup
     #   jedi-language-server
-zipp==3.21.0 \
-    --hash=sha256:2c9958f6430a2040341a52eb608ed6dd93ef4392e02ffe219417c1b28b5dd1f4 \
-    --hash=sha256:ac1bbe05fd2991f160ebce24ffbac5f6d11d83dc90891255885223d42b3cd931
+zipp==3.23.0 \
+    --hash=sha256:071652d6115ed432f5ce1d34c336c0adfd6a884660d1e9712a256d3d3bd4b14e \
+    --hash=sha256:a07157588a12518c9d4034df3fbbee09c814741a33ff63c05fa29d26a2404166
     # via importlib-metadata

From 85ccdd74d40a574b38fcde3d9adeedb1b4d21314 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Thu, 11 Sep 2025 16:41:58 -0700
Subject: [PATCH 065/178] Bump actions/setup-python from 5 to 6 (#25438)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps [actions/setup-python](https://github.com/actions/setup-python)
from 5 to 6.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/actions/setup-python/releases">actions/setup-python's
releases</a>.</em></p>
<blockquote>
<h2>v6.0.0</h2>
<h2>What's Changed</h2>
<h3>Breaking Changes</h3>
<ul>
<li>Upgrade to node 24 by <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a
href="https://redirect.github.com/actions/setup-python/pull/1164">actions/setup-python#1164</a></li>
</ul>
<p>Make sure your runner is on version v2.327.1 or later to ensure
compatibility with this release. <a
href="https://github.com/actions/runner/releases/tag/v2.327.1">See
Release Notes</a></p>
<h3>Enhancements:</h3>
<ul>
<li>Add support for <code>pip-version</code> by <a
href="https://github.com/priyagupta108"><code>@​priyagupta108</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1129">actions/setup-python#1129</a></li>
<li>Enhance reading from .python-version by <a
href="https://github.com/krystof-k"><code>@​krystof-k</code></a> in <a
href="https://redirect.github.com/actions/setup-python/pull/787">actions/setup-python#787</a></li>
<li>Add version parsing from Pipfile by <a
href="https://github.com/aradkdj"><code>@​aradkdj</code></a> in <a
href="https://redirect.github.com/actions/setup-python/pull/1067">actions/setup-python#1067</a></li>
</ul>
<h3>Bug fixes:</h3>
<ul>
<li>Clarify pythonLocation behaviour for PyPy and GraalPy in environment
variables by <a
href="https://github.com/aparnajyothi-y"><code>@​aparnajyothi-y</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1183">actions/setup-python#1183</a></li>
<li>Change missing cache directory error to warning by <a
href="https://github.com/aparnajyothi-y"><code>@​aparnajyothi-y</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1182">actions/setup-python#1182</a></li>
<li>Add Architecture-Specific PATH Management for Python with --user
Flag on Windows by <a
href="https://github.com/aparnajyothi-y"><code>@​aparnajyothi-y</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1122">actions/setup-python#1122</a></li>
<li>Include python version in PyPy python-version output by <a
href="https://github.com/cdce8p"><code>@​cdce8p</code></a> in <a
href="https://redirect.github.com/actions/setup-python/pull/1110">actions/setup-python#1110</a></li>
<li>Update docs: clarification on pip authentication with setup-python
by <a
href="https://github.com/priya-kinthali"><code>@​priya-kinthali</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1156">actions/setup-python#1156</a></li>
</ul>
<h3>Dependency updates:</h3>
<ul>
<li>Upgrade idna from 2.9 to 3.7 in /<strong>tests</strong>/data by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-python/pull/843">actions/setup-python#843</a></li>
<li>Upgrade form-data to fix critical vulnerabilities <a
href="https://redirect.github.com/actions/setup-python/issues/182">#182</a>
&amp; <a
href="https://redirect.github.com/actions/setup-python/issues/183">#183</a>
by <a
href="https://github.com/aparnajyothi-y"><code>@​aparnajyothi-y</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1163">actions/setup-python#1163</a></li>
<li>Upgrade setuptools to 78.1.1 to fix path traversal vulnerability in
PackageIndex.download by <a
href="https://github.com/aparnajyothi-y"><code>@​aparnajyothi-y</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1165">actions/setup-python#1165</a></li>
<li>Upgrade actions/checkout from 4 to 5 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-python/pull/1181">actions/setup-python#1181</a></li>
<li>Upgrade <code>@​actions/tool-cache</code> from 2.0.1 to 2.0.2 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-python/pull/1095">actions/setup-python#1095</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/krystof-k"><code>@​krystof-k</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/setup-python/pull/787">actions/setup-python#787</a></li>
<li><a href="https://github.com/cdce8p"><code>@​cdce8p</code></a> made
their first contribution in <a
href="https://redirect.github.com/actions/setup-python/pull/1110">actions/setup-python#1110</a></li>
<li><a href="https://github.com/aradkdj"><code>@​aradkdj</code></a> made
their first contribution in <a
href="https://redirect.github.com/actions/setup-python/pull/1067">actions/setup-python#1067</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/setup-python/compare/v5...v6.0.0">https://github.com/actions/setup-python/compare/v5...v6.0.0</a></p>
<h2>v5.6.0</h2>
<h2>What's Changed</h2>
<ul>
<li>Workflow updates related to Ubuntu 20.04 by <a
href="https://github.com/aparnajyothi-y"><code>@​aparnajyothi-y</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1065">actions/setup-python#1065</a></li>
<li>Fix for Candidate Not Iterable Error by <a
href="https://github.com/aparnajyothi-y"><code>@​aparnajyothi-y</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1082">actions/setup-python#1082</a></li>
<li>Upgrade semver and <code>@​types/semver</code> by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/setup-python/pull/1091">actions/setup-python#1091</a></li>
<li>Upgrade prettier from 2.8.8 to 3.5.3 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/setup-python/pull/1046">actions/setup-python#1046</a></li>
<li>Upgrade ts-jest from 29.1.2 to 29.3.2 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/setup-python/pull/1081">actions/setup-python#1081</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/setup-python/compare/v5...v5.6.0">https://github.com/actions/setup-python/compare/v5...v5.6.0</a></p>
<h2>v5.5.0</h2>
<h2>What's Changed</h2>
<h3>Enhancements:</h3>
<ul>
<li>Support free threaded Python versions like '3.13t' by <a
href="https://github.com/colesbury"><code>@​colesbury</code></a> in <a
href="https://redirect.github.com/actions/setup-python/pull/973">actions/setup-python#973</a></li>
<li>Enhance Workflows: Include ubuntu-arm runners, Add e2e Testing for
free threaded and Upgrade <code>@​action/cache</code> from 4.0.0 to
4.0.3 by <a
href="https://github.com/priya-kinthali"><code>@​priya-kinthali</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1056">actions/setup-python#1056</a></li>
<li>Add support for .tool-versions file in setup-python by <a
href="https://github.com/mahabaleshwars"><code>@​mahabaleshwars</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1043">actions/setup-python#1043</a></li>
</ul>
<h3>Bug fixes:</h3>
<ul>
<li>Fix architecture for pypy on Linux ARM64 by <a
href="https://github.com/mayeut"><code>@​mayeut</code></a> in <a
href="https://redirect.github.com/actions/setup-python/pull/1011">actions/setup-python#1011</a>
This update maps arm64 to aarch64 for Linux ARM64 PyPy
installations.</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/actions/setup-python/commit/e797f83bcb11b83ae66e0230d6156d7c80228e7c"><code>e797f83</code></a>
Upgrade to node 24 (<a
href="https://redirect.github.com/actions/setup-python/issues/1164">#1164</a>)</li>
<li><a
href="https://github.com/actions/setup-python/commit/3d1e2d2ca0a067f27da6fec484fce7f5256def85"><code>3d1e2d2</code></a>
Revert &quot;Enhance cache-dependency-path handling to support files
outside the w...</li>
<li><a
href="https://github.com/actions/setup-python/commit/65b071217a8539818fdb8b54561bcbae40380a54"><code>65b0712</code></a>
Clarify pythonLocation behavior for PyPy and GraalPy in environment
variables...</li>
<li><a
href="https://github.com/actions/setup-python/commit/5b668cf7652160527499ee14ceaff4be9306cb88"><code>5b668cf</code></a>
Bump actions/checkout from 4 to 5 (<a
href="https://redirect.github.com/actions/setup-python/issues/1181">#1181</a>)</li>
<li><a
href="https://github.com/actions/setup-python/commit/f62a0e252fe7114e86949abfa6e1e89f85bb38c2"><code>f62a0e2</code></a>
Change missing cache directory error to warning (<a
href="https://redirect.github.com/actions/setup-python/issues/1182">#1182</a>)</li>
<li><a
href="https://github.com/actions/setup-python/commit/9322b3ca74000aeb2c01eb777b646334015ddd72"><code>9322b3c</code></a>
Upgrade setuptools to 78.1.1 to fix path traversal vulnerability in
PackageIn...</li>
<li><a
href="https://github.com/actions/setup-python/commit/fbeb884f69f0ac1c0257302f62aa524c2824b649"><code>fbeb884</code></a>
Bump form-data to fix critical vulnerabilities <a
href="https://redirect.github.com/actions/setup-python/issues/182">#182</a>
&amp; <a
href="https://redirect.github.com/actions/setup-python/issues/183">#183</a>
(<a
href="https://redirect.github.com/actions/setup-python/issues/1163">#1163</a>)</li>
<li><a
href="https://github.com/actions/setup-python/commit/03bb6152f4f691b9d64579a1bd791904a083c452"><code>03bb615</code></a>
Bump idna from 2.9 to 3.7 in /<strong>tests</strong>/data (<a
href="https://redirect.github.com/actions/setup-python/issues/843">#843</a>)</li>
<li><a
href="https://github.com/actions/setup-python/commit/36da51d563b70a972897150555bb025096d65565"><code>36da51d</code></a>
Add version parsing from Pipfile (<a
href="https://redirect.github.com/actions/setup-python/issues/1067">#1067</a>)</li>
<li><a
href="https://github.com/actions/setup-python/commit/3c6f142cc0036d53007e92fa1e327564a4cfb7aa"><code>3c6f142</code></a>
update documentation (<a
href="https://redirect.github.com/actions/setup-python/issues/1156">#1156</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/actions/setup-python/compare/v5...v6">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
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---
 .github/workflows/build.yml              | 6 +++---
 .github/workflows/gen-issue-velocity.yml | 2 +-
 .github/workflows/pr-check.yml           | 8 ++++----
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 51aff82bfc6f..88b88ebc2876 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -130,7 +130,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Use Python ${{ env.PYTHON_VERSION }}
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: ${{ env.PYTHON_VERSION }}
 
@@ -184,7 +184,7 @@ jobs:
           persist-credentials: false
 
       - name: Use Python ${{ matrix.python }}
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: ${{ matrix.python }}
 
@@ -252,7 +252,7 @@ jobs:
         run: npx @vscode/l10n-dev@latest export ./src
 
       - name: Install Python ${{ matrix.python }}
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: ${{ matrix.python }}
 
diff --git a/.github/workflows/gen-issue-velocity.yml b/.github/workflows/gen-issue-velocity.yml
index c28c6c368562..fdcb41cdaba9 100644
--- a/.github/workflows/gen-issue-velocity.yml
+++ b/.github/workflows/gen-issue-velocity.yml
@@ -19,7 +19,7 @@ jobs:
           persist-credentials: false
 
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: '3.x'
 
diff --git a/.github/workflows/pr-check.yml b/.github/workflows/pr-check.yml
index 07fb9c19ec67..c932c314682d 100644
--- a/.github/workflows/pr-check.yml
+++ b/.github/workflows/pr-check.yml
@@ -101,7 +101,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Use Python ${{ env.PYTHON_VERSION }}
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: ${{ env.PYTHON_VERSION }}
 
@@ -168,7 +168,7 @@ jobs:
           persist-credentials: false
 
       - name: Use Python ${{ matrix.python }}
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: ${{ matrix.python }}
 
@@ -249,7 +249,7 @@ jobs:
         run: npx @vscode/l10n-dev@latest export ./src
 
       - name: Use Python ${{ matrix.python }}
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: ${{ matrix.python }}
 
@@ -520,7 +520,7 @@ jobs:
         run: npx @vscode/l10n-dev@latest export ./src
 
       - name: Use Python ${{ env.PYTHON_VERSION }}
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: ${{ env.PYTHON_VERSION }}
           cache: 'pip'

From b5787a44311a662568142138cf25cc97d8c36ca6 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Thu, 11 Sep 2025 16:42:25 -0700
Subject: [PATCH 066/178] Bump actions/setup-python from 5 to 6 in
 /.github/actions/build-vsix (#25433)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps [actions/setup-python](https://github.com/actions/setup-python)
from 5 to 6.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/actions/setup-python/releases">actions/setup-python's
releases</a>.</em></p>
<blockquote>
<h2>v6.0.0</h2>
<h2>What's Changed</h2>
<h3>Breaking Changes</h3>
<ul>
<li>Upgrade to node 24 by <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a
href="https://redirect.github.com/actions/setup-python/pull/1164">actions/setup-python#1164</a></li>
</ul>
<p>Make sure your runner is on version v2.327.1 or later to ensure
compatibility with this release. <a
href="https://github.com/actions/runner/releases/tag/v2.327.1">See
Release Notes</a></p>
<h3>Enhancements:</h3>
<ul>
<li>Add support for <code>pip-version</code> by <a
href="https://github.com/priyagupta108"><code>@​priyagupta108</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1129">actions/setup-python#1129</a></li>
<li>Enhance reading from .python-version by <a
href="https://github.com/krystof-k"><code>@​krystof-k</code></a> in <a
href="https://redirect.github.com/actions/setup-python/pull/787">actions/setup-python#787</a></li>
<li>Add version parsing from Pipfile by <a
href="https://github.com/aradkdj"><code>@​aradkdj</code></a> in <a
href="https://redirect.github.com/actions/setup-python/pull/1067">actions/setup-python#1067</a></li>
</ul>
<h3>Bug fixes:</h3>
<ul>
<li>Clarify pythonLocation behaviour for PyPy and GraalPy in environment
variables by <a
href="https://github.com/aparnajyothi-y"><code>@​aparnajyothi-y</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1183">actions/setup-python#1183</a></li>
<li>Change missing cache directory error to warning by <a
href="https://github.com/aparnajyothi-y"><code>@​aparnajyothi-y</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1182">actions/setup-python#1182</a></li>
<li>Add Architecture-Specific PATH Management for Python with --user
Flag on Windows by <a
href="https://github.com/aparnajyothi-y"><code>@​aparnajyothi-y</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1122">actions/setup-python#1122</a></li>
<li>Include python version in PyPy python-version output by <a
href="https://github.com/cdce8p"><code>@​cdce8p</code></a> in <a
href="https://redirect.github.com/actions/setup-python/pull/1110">actions/setup-python#1110</a></li>
<li>Update docs: clarification on pip authentication with setup-python
by <a
href="https://github.com/priya-kinthali"><code>@​priya-kinthali</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1156">actions/setup-python#1156</a></li>
</ul>
<h3>Dependency updates:</h3>
<ul>
<li>Upgrade idna from 2.9 to 3.7 in /<strong>tests</strong>/data by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-python/pull/843">actions/setup-python#843</a></li>
<li>Upgrade form-data to fix critical vulnerabilities <a
href="https://redirect.github.com/actions/setup-python/issues/182">#182</a>
&amp; <a
href="https://redirect.github.com/actions/setup-python/issues/183">#183</a>
by <a
href="https://github.com/aparnajyothi-y"><code>@​aparnajyothi-y</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1163">actions/setup-python#1163</a></li>
<li>Upgrade setuptools to 78.1.1 to fix path traversal vulnerability in
PackageIndex.download by <a
href="https://github.com/aparnajyothi-y"><code>@​aparnajyothi-y</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1165">actions/setup-python#1165</a></li>
<li>Upgrade actions/checkout from 4 to 5 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-python/pull/1181">actions/setup-python#1181</a></li>
<li>Upgrade <code>@​actions/tool-cache</code> from 2.0.1 to 2.0.2 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-python/pull/1095">actions/setup-python#1095</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/krystof-k"><code>@​krystof-k</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/setup-python/pull/787">actions/setup-python#787</a></li>
<li><a href="https://github.com/cdce8p"><code>@​cdce8p</code></a> made
their first contribution in <a
href="https://redirect.github.com/actions/setup-python/pull/1110">actions/setup-python#1110</a></li>
<li><a href="https://github.com/aradkdj"><code>@​aradkdj</code></a> made
their first contribution in <a
href="https://redirect.github.com/actions/setup-python/pull/1067">actions/setup-python#1067</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/setup-python/compare/v5...v6.0.0">https://github.com/actions/setup-python/compare/v5...v6.0.0</a></p>
<h2>v5.6.0</h2>
<h2>What's Changed</h2>
<ul>
<li>Workflow updates related to Ubuntu 20.04 by <a
href="https://github.com/aparnajyothi-y"><code>@​aparnajyothi-y</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1065">actions/setup-python#1065</a></li>
<li>Fix for Candidate Not Iterable Error by <a
href="https://github.com/aparnajyothi-y"><code>@​aparnajyothi-y</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1082">actions/setup-python#1082</a></li>
<li>Upgrade semver and <code>@​types/semver</code> by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/setup-python/pull/1091">actions/setup-python#1091</a></li>
<li>Upgrade prettier from 2.8.8 to 3.5.3 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/setup-python/pull/1046">actions/setup-python#1046</a></li>
<li>Upgrade ts-jest from 29.1.2 to 29.3.2 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/setup-python/pull/1081">actions/setup-python#1081</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/setup-python/compare/v5...v5.6.0">https://github.com/actions/setup-python/compare/v5...v5.6.0</a></p>
<h2>v5.5.0</h2>
<h2>What's Changed</h2>
<h3>Enhancements:</h3>
<ul>
<li>Support free threaded Python versions like '3.13t' by <a
href="https://github.com/colesbury"><code>@​colesbury</code></a> in <a
href="https://redirect.github.com/actions/setup-python/pull/973">actions/setup-python#973</a></li>
<li>Enhance Workflows: Include ubuntu-arm runners, Add e2e Testing for
free threaded and Upgrade <code>@​action/cache</code> from 4.0.0 to
4.0.3 by <a
href="https://github.com/priya-kinthali"><code>@​priya-kinthali</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1056">actions/setup-python#1056</a></li>
<li>Add support for .tool-versions file in setup-python by <a
href="https://github.com/mahabaleshwars"><code>@​mahabaleshwars</code></a>
in <a
href="https://redirect.github.com/actions/setup-python/pull/1043">actions/setup-python#1043</a></li>
</ul>
<h3>Bug fixes:</h3>
<ul>
<li>Fix architecture for pypy on Linux ARM64 by <a
href="https://github.com/mayeut"><code>@​mayeut</code></a> in <a
href="https://redirect.github.com/actions/setup-python/pull/1011">actions/setup-python#1011</a>
This update maps arm64 to aarch64 for Linux ARM64 PyPy
installations.</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/actions/setup-python/commit/e797f83bcb11b83ae66e0230d6156d7c80228e7c"><code>e797f83</code></a>
Upgrade to node 24 (<a
href="https://redirect.github.com/actions/setup-python/issues/1164">#1164</a>)</li>
<li><a
href="https://github.com/actions/setup-python/commit/3d1e2d2ca0a067f27da6fec484fce7f5256def85"><code>3d1e2d2</code></a>
Revert &quot;Enhance cache-dependency-path handling to support files
outside the w...</li>
<li><a
href="https://github.com/actions/setup-python/commit/65b071217a8539818fdb8b54561bcbae40380a54"><code>65b0712</code></a>
Clarify pythonLocation behavior for PyPy and GraalPy in environment
variables...</li>
<li><a
href="https://github.com/actions/setup-python/commit/5b668cf7652160527499ee14ceaff4be9306cb88"><code>5b668cf</code></a>
Bump actions/checkout from 4 to 5 (<a
href="https://redirect.github.com/actions/setup-python/issues/1181">#1181</a>)</li>
<li><a
href="https://github.com/actions/setup-python/commit/f62a0e252fe7114e86949abfa6e1e89f85bb38c2"><code>f62a0e2</code></a>
Change missing cache directory error to warning (<a
href="https://redirect.github.com/actions/setup-python/issues/1182">#1182</a>)</li>
<li><a
href="https://github.com/actions/setup-python/commit/9322b3ca74000aeb2c01eb777b646334015ddd72"><code>9322b3c</code></a>
Upgrade setuptools to 78.1.1 to fix path traversal vulnerability in
PackageIn...</li>
<li><a
href="https://github.com/actions/setup-python/commit/fbeb884f69f0ac1c0257302f62aa524c2824b649"><code>fbeb884</code></a>
Bump form-data to fix critical vulnerabilities <a
href="https://redirect.github.com/actions/setup-python/issues/182">#182</a>
&amp; <a
href="https://redirect.github.com/actions/setup-python/issues/183">#183</a>
(<a
href="https://redirect.github.com/actions/setup-python/issues/1163">#1163</a>)</li>
<li><a
href="https://github.com/actions/setup-python/commit/03bb6152f4f691b9d64579a1bd791904a083c452"><code>03bb615</code></a>
Bump idna from 2.9 to 3.7 in /<strong>tests</strong>/data (<a
href="https://redirect.github.com/actions/setup-python/issues/843">#843</a>)</li>
<li><a
href="https://github.com/actions/setup-python/commit/36da51d563b70a972897150555bb025096d65565"><code>36da51d</code></a>
Add version parsing from Pipfile (<a
href="https://redirect.github.com/actions/setup-python/issues/1067">#1067</a>)</li>
<li><a
href="https://github.com/actions/setup-python/commit/3c6f142cc0036d53007e92fa1e327564a4cfb7aa"><code>3c6f142</code></a>
update documentation (<a
href="https://redirect.github.com/actions/setup-python/issues/1156">#1156</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/actions/setup-python/compare/v5...v6">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=actions/setup-python&package-manager=github_actions&previous-version=5&new-version=6)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
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You can trigger Dependabot actions by commenting on this PR:
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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
---
 .github/actions/build-vsix/action.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/actions/build-vsix/action.yml b/.github/actions/build-vsix/action.yml
index eaabe5141e8b..bfe90fc940e8 100644
--- a/.github/actions/build-vsix/action.yml
+++ b/.github/actions/build-vsix/action.yml
@@ -32,7 +32,7 @@ runs:
 
     # Jedi LS depends on dataclasses which is not in the stdlib in Python 3.7.
     - name: Use Python 3.9 for JediLSP
-      uses: actions/setup-python@v5
+      uses: actions/setup-python@v6
       with:
         python-version: 3.9
         cache: 'pip'

From 6712746df8aae1b1b8d5e5264f7b4ad7a9bd9bd1 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Thu, 11 Sep 2025 16:42:49 -0700
Subject: [PATCH 067/178] Bump sha.js from 2.4.11 to 2.4.12 (#25409)

Bumps [sha.js](https://github.com/crypto-browserify/sha.js) from 2.4.11
to 2.4.12.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/browserify/sha.js/blob/master/CHANGELOG.md">sha.js's
changelog</a>.</em></p>
<blockquote>
<h2><a
href="https://github.com/browserify/sha.js/compare/v2.4.11...v2.4.12">v2.4.12</a>
- 2025-07-01</h2>
<h3>Commits</h3>
<ul>
<li>[eslint] switch to eslint <a
href="https://github.com/browserify/sha.js/commit/7acadfbd3abb558880212b20669fcb09e1aa1c58"><code>7acadfb</code></a></li>
<li>[meta] add <code>auto-changelog</code> <a
href="https://github.com/browserify/sha.js/commit/b46e7116ebeaa82f34bbf2d7494fff7ef46eab3e"><code>b46e711</code></a></li>
<li>[eslint] fix package.json indentation <a
href="https://github.com/browserify/sha.js/commit/df9d521e16ddf55dc877c43c05706d43c057fad4"><code>df9d521</code></a></li>
<li>[Tests] migrate from travis to GHA <a
href="https://github.com/browserify/sha.js/commit/c43c64adc6d3607d470538df72338fc02e63bc24"><code>c43c64a</code></a></li>
<li>[Fix] support multi-byte wide typed arrays <a
href="https://github.com/browserify/sha.js/commit/f2a258e9f2d0fcd113bfbaa49706e1ac0d979ba5"><code>f2a258e</code></a></li>
<li>[meta] reorder package.json <a
href="https://github.com/browserify/sha.js/commit/d8d77c0a729c99593e304047f9d4335b498fd9ed"><code>d8d77c0</code></a></li>
<li>[meta] add <code>npmignore</code> <a
href="https://github.com/browserify/sha.js/commit/35aec35c667b606b2495be3e4186bbe977b9e087"><code>35aec35</code></a></li>
<li>[Tests] avoid console logs <a
href="https://github.com/browserify/sha.js/commit/73e33ae0ca6bca232627cac7473028e1d218f67e"><code>73e33ae</code></a></li>
<li>[Tests] fix tests run in batch <a
href="https://github.com/browserify/sha.js/commit/262913006e94616c8cd245ef6bd61bc4410b29e3"><code>2629130</code></a></li>
<li>[Tests] drop node requirement to 0.10 <a
href="https://github.com/browserify/sha.js/commit/00c7f234aa3bdbd427ffeb929bacbb05334eb3e9"><code>00c7f23</code></a></li>
<li>[Dev Deps] update <code>buffer</code>,
<code>hash-test-vectors</code>, <code>standard</code>,
<code>tape</code>, <code>typedarray</code> <a
href="https://github.com/browserify/sha.js/commit/92b5de5f67472d9f18413d38ad5b9aba29ff4c22"><code>92b5de5</code></a></li>
<li>[Tests] drop node requirement to v3 <a
href="https://github.com/browserify/sha.js/commit/9b5eca80fd9bb21cf05bdf43ce42661f1bbafeaa"><code>9b5eca8</code></a></li>
<li>[meta] set engines to <code>&amp;gt;= 4</code> <a
href="https://github.com/browserify/sha.js/commit/807084c5c0f943459e89838252cafbd175b549b7"><code>807084c</code></a></li>
<li>Only apps should have lockfiles <a
href="https://github.com/browserify/sha.js/commit/c72789c7a129cf453d44008ba27a88b90ac7989b"><code>c72789c</code></a></li>
<li>[Deps] update <code>inherits</code>, <code>safe-buffer</code> <a
href="https://github.com/browserify/sha.js/commit/5428cfc6f7177ad1a41c837b9387308848db96de"><code>5428cfc</code></a></li>
<li>[Dev Deps] update <code>@ljharb/eslint-config</code> <a
href="https://github.com/browserify/sha.js/commit/2dbe0aab419e90add5032c70c9663b8fc562adb8"><code>2dbe0aa</code></a></li>
<li>update README to reflect LICENSE <a
href="https://github.com/browserify/sha.js/commit/8938256dbb2241a7c749e4a399dbaff48cbe8e95"><code>8938256</code></a></li>
<li>[Dev Deps] add missing peer dep <a
href="https://github.com/browserify/sha.js/commit/d52889688ce524e63570f35e448635a29e6dd791"><code>d528896</code></a></li>
<li>[Dev Deps] remove unused <code>buffer</code> dep <a
href="https://github.com/browserify/sha.js/commit/94ca7247f467ef045f41d534708bf7c700e03828"><code>94ca724</code></a></li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/browserify/sha.js/commit/eb4ea2fd3da93d41e250f9ac8a1a133ce450e0a2"><code>eb4ea2f</code></a>
v2.4.12</li>
<li><a
href="https://github.com/browserify/sha.js/commit/d8d77c0a729c99593e304047f9d4335b498fd9ed"><code>d8d77c0</code></a>
[meta] reorder package.json</li>
<li><a
href="https://github.com/browserify/sha.js/commit/df9d521e16ddf55dc877c43c05706d43c057fad4"><code>df9d521</code></a>
[eslint] fix package.json indentation</li>
<li><a
href="https://github.com/browserify/sha.js/commit/35aec35c667b606b2495be3e4186bbe977b9e087"><code>35aec35</code></a>
[meta] add <code>npmignore</code></li>
<li><a
href="https://github.com/browserify/sha.js/commit/d52889688ce524e63570f35e448635a29e6dd791"><code>d528896</code></a>
[Dev Deps] add missing peer dep</li>
<li><a
href="https://github.com/browserify/sha.js/commit/b46e7116ebeaa82f34bbf2d7494fff7ef46eab3e"><code>b46e711</code></a>
[meta] add <code>auto-changelog</code></li>
<li><a
href="https://github.com/browserify/sha.js/commit/94ca7247f467ef045f41d534708bf7c700e03828"><code>94ca724</code></a>
[Dev Deps] remove unused <code>buffer</code> dep</li>
<li><a
href="https://github.com/browserify/sha.js/commit/2dbe0aab419e90add5032c70c9663b8fc562adb8"><code>2dbe0aa</code></a>
[Dev Deps] update <code>@ljharb/eslint-config</code></li>
<li><a
href="https://github.com/browserify/sha.js/commit/73e33ae0ca6bca232627cac7473028e1d218f67e"><code>73e33ae</code></a>
[Tests] avoid console logs</li>
<li><a
href="https://github.com/browserify/sha.js/commit/f2a258e9f2d0fcd113bfbaa49706e1ac0d979ba5"><code>f2a258e</code></a>
[Fix] support multi-byte wide typed arrays</li>
<li>Additional commits viewable in <a
href="https://github.com/crypto-browserify/sha.js/compare/v2.4.11...v2.4.12">compare
view</a></li>
</ul>
</details>
<details>
<summary>Maintainer changes</summary>
<p>This version was pushed to npm by <a
href="https://www.npmjs.com/~ljharb">ljharb</a>, a new releaser for
sha.js since your current version.</p>
</details>
<br />


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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
---
 package-lock.json | 56 ++++++++++++++++++++++++++++++++++++++---------
 1 file changed, 46 insertions(+), 10 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index be908b0b0f11..2775ed2d88cb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12444,18 +12444,45 @@
             "dev": true
         },
         "node_modules/sha.js": {
-            "version": "2.4.11",
-            "resolved": "https://registry.npmjs.org/sha.js/-/sha.js-2.4.11.tgz",
-            "integrity": "sha512-QMEp5B7cftE7APOjk5Y6xgrbWu+WkLVQwk8JNjZ8nKRciZaByEW6MubieAiToS7+dwvrjGhH8jRXz3MVd0AYqQ==",
+            "version": "2.4.12",
+            "resolved": "https://registry.npmjs.org/sha.js/-/sha.js-2.4.12.tgz",
+            "integrity": "sha512-8LzC5+bvI45BjpfXU8V5fdU2mfeKiQe1D1gIMn7XUlF3OTUrpdJpPPH4EMAnF0DsHHdSZqCdSss5qCmJKuiO3w==",
             "dev": true,
             "dependencies": {
-                "inherits": "^2.0.1",
-                "safe-buffer": "^5.0.1"
+                "inherits": "^2.0.4",
+                "safe-buffer": "^5.2.1",
+                "to-buffer": "^1.2.0"
             },
             "bin": {
                 "sha.js": "bin.js"
+            },
+            "engines": {
+                "node": ">= 0.10"
+            },
+            "funding": {
+                "url": "https://github.com/sponsors/ljharb"
             }
         },
+        "node_modules/sha.js/node_modules/safe-buffer": {
+            "version": "5.2.1",
+            "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+            "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
+            "dev": true,
+            "funding": [
+                {
+                    "type": "github",
+                    "url": "https://github.com/sponsors/feross"
+                },
+                {
+                    "type": "patreon",
+                    "url": "https://www.patreon.com/feross"
+                },
+                {
+                    "type": "consulting",
+                    "url": "https://feross.org/support"
+                }
+            ]
+        },
         "node_modules/shallow-clone": {
             "version": "3.0.1",
             "resolved": "https://registry.npmjs.org/shallow-clone/-/shallow-clone-3.0.1.tgz",
@@ -24525,13 +24552,22 @@
             "dev": true
         },
         "sha.js": {
-            "version": "2.4.11",
-            "resolved": "https://registry.npmjs.org/sha.js/-/sha.js-2.4.11.tgz",
-            "integrity": "sha512-QMEp5B7cftE7APOjk5Y6xgrbWu+WkLVQwk8JNjZ8nKRciZaByEW6MubieAiToS7+dwvrjGhH8jRXz3MVd0AYqQ==",
+            "version": "2.4.12",
+            "resolved": "https://registry.npmjs.org/sha.js/-/sha.js-2.4.12.tgz",
+            "integrity": "sha512-8LzC5+bvI45BjpfXU8V5fdU2mfeKiQe1D1gIMn7XUlF3OTUrpdJpPPH4EMAnF0DsHHdSZqCdSss5qCmJKuiO3w==",
             "dev": true,
             "requires": {
-                "inherits": "^2.0.1",
-                "safe-buffer": "^5.0.1"
+                "inherits": "^2.0.4",
+                "safe-buffer": "^5.2.1",
+                "to-buffer": "^1.2.0"
+            },
+            "dependencies": {
+                "safe-buffer": {
+                    "version": "5.2.1",
+                    "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+                    "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
+                    "dev": true
+                }
             }
         },
         "shallow-clone": {

From 2968abd26e2c9e196ee393793ecd3911d6d6307e Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Thu, 18 Sep 2025 15:51:03 -0700
Subject: [PATCH 068/178] Optimize test result processing in
 PythonResultResolver to improve performance and reduce complexity (#25471)

fixes https://github.com/microsoft/vscode-python/issues/25366

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
---
 .../testController/common/resultResolver.ts   | 425 ++++++++++++------
 .../testing/common/testingAdapter.test.ts     | 208 ++++++++-
 2 files changed, 485 insertions(+), 148 deletions(-)

diff --git a/src/client/testing/testController/common/resultResolver.ts b/src/client/testing/testController/common/resultResolver.ts
index 82856627e0c9..b92e7a870f20 100644
--- a/src/client/testing/testController/common/resultResolver.ts
+++ b/src/client/testing/testController/common/resultResolver.ts
@@ -99,6 +99,11 @@ export class PythonResultResolver implements ITestResultResolver {
             // if any tests exist, they should be populated in the test tree, regardless of whether there were errors or not.
             // parse and insert test data.
 
+            // Clear existing mappings before rebuilding test tree
+            this.runIdToTestItem.clear();
+            this.runIdToVSid.clear();
+            this.vsIdToRunId.clear();
+
             // If the test root for this folder exists: Workspace refresh, update its children.
             // Otherwise, it is a freshly discovered workspace, and we need to create a new test root and populate the test tree.
             populateTestTree(this.testController, rawTestData.tests, undefined, this, token);
@@ -173,165 +178,291 @@ export class PythonResultResolver implements ITestResultResolver {
         }
     }
 
+    /**
+     * Collect all test case items from the test controller tree.
+     * Note: This performs full tree traversal - use cached lookups when possible.
+     */
+    private collectAllTestCases(): TestItem[] {
+        const testCases: TestItem[] = [];
+
+        this.testController.items.forEach((i) => {
+            const tempArr: TestItem[] = getTestCaseNodes(i);
+            testCases.push(...tempArr);
+        });
+
+        return testCases;
+    }
+
+    /**
+     * Find a test item efficiently using cached maps with fallback strategies.
+     * Uses a three-tier approach: direct lookup, ID mapping, then tree search.
+     */
+    private findTestItemByIdEfficient(keyTemp: string): TestItem | undefined {
+        // Try direct O(1) lookup first
+        const directItem = this.runIdToTestItem.get(keyTemp);
+        if (directItem) {
+            // Validate the item is still in the test tree
+            if (this.isTestItemValid(directItem)) {
+                return directItem;
+            } else {
+                // Clean up stale reference
+                this.runIdToTestItem.delete(keyTemp);
+            }
+        }
+
+        // Try vsId mapping as fallback
+        const vsId = this.runIdToVSid.get(keyTemp);
+        if (vsId) {
+            // Search by VS Code ID in the controller
+            let foundItem: TestItem | undefined;
+            this.testController.items.forEach((item) => {
+                if (item.id === vsId) {
+                    foundItem = item;
+                    return;
+                }
+                if (!foundItem) {
+                    item.children.forEach((child) => {
+                        if (child.id === vsId) {
+                            foundItem = child;
+                        }
+                    });
+                }
+            });
+
+            if (foundItem) {
+                // Cache for future lookups
+                this.runIdToTestItem.set(keyTemp, foundItem);
+                return foundItem;
+            } else {
+                // Clean up stale mapping
+                this.runIdToVSid.delete(keyTemp);
+                this.vsIdToRunId.delete(vsId);
+            }
+        }
+
+        // Last resort: full tree search
+        traceError(`Falling back to tree search for test: ${keyTemp}`);
+        const testCases = this.collectAllTestCases();
+        return testCases.find((item) => item.id === vsId);
+    }
+
+    /**
+     * Check if a TestItem is still valid (exists in the TestController tree)
+     *
+     * Time Complexity: O(depth) where depth is the maximum nesting level of the test tree.
+     * In most cases this is O(1) to O(3) since test trees are typically shallow.
+     */
+    private isTestItemValid(testItem: TestItem): boolean {
+        // Simple validation: check if the item's parent chain leads back to the controller
+        let current: TestItem | undefined = testItem;
+        while (current?.parent) {
+            current = current.parent;
+        }
+
+        // If we reached a root item, check if it's in the controller
+        if (current) {
+            return this.testController.items.get(current.id) === current;
+        }
+
+        // If no parent chain, check if it's directly in the controller
+        return this.testController.items.get(testItem.id) === testItem;
+    }
+
+    /**
+     * Clean up stale test item references from the cache maps.
+     * Validates cached items and removes any that are no longer in the test tree.
+     */
+    public cleanupStaleReferences(): void {
+        const staleRunIds: string[] = [];
+
+        // Check all runId->TestItem mappings
+        this.runIdToTestItem.forEach((testItem, runId) => {
+            if (!this.isTestItemValid(testItem)) {
+                staleRunIds.push(runId);
+            }
+        });
+
+        // Remove stale entries
+        staleRunIds.forEach((runId) => {
+            const vsId = this.runIdToVSid.get(runId);
+            this.runIdToTestItem.delete(runId);
+            this.runIdToVSid.delete(runId);
+            if (vsId) {
+                this.vsIdToRunId.delete(vsId);
+            }
+        });
+
+        if (staleRunIds.length > 0) {
+            traceVerbose(`Cleaned up ${staleRunIds.length} stale test item references`);
+        }
+    }
+
+    /**
+     * Handle test items that errored during execution.
+     * Extracts error details, finds the corresponding TestItem, and reports the error to VS Code's Test Explorer.
+     */
+    private handleTestError(keyTemp: string, testItem: any, runInstance: TestRun): void {
+        const rawTraceback = testItem.traceback ?? '';
+        const traceback = splitLines(rawTraceback, {
+            trim: false,
+            removeEmptyEntries: true,
+        }).join('\r\n');
+        const text = `${testItem.test} failed with error: ${testItem.message ?? testItem.outcome}\r\n${traceback}`;
+        const message = new TestMessage(text);
+
+        const foundItem = this.findTestItemByIdEfficient(keyTemp);
+
+        if (foundItem?.uri) {
+            if (foundItem.range) {
+                message.location = new Location(foundItem.uri, foundItem.range);
+            }
+            runInstance.errored(foundItem, message);
+        }
+    }
+
+    /**
+     * Handle test items that failed during execution
+     */
+    private handleTestFailure(keyTemp: string, testItem: any, runInstance: TestRun): void {
+        const rawTraceback = testItem.traceback ?? '';
+        const traceback = splitLines(rawTraceback, {
+            trim: false,
+            removeEmptyEntries: true,
+        }).join('\r\n');
+
+        const text = `${testItem.test} failed: ${testItem.message ?? testItem.outcome}\r\n${traceback}`;
+        const message = new TestMessage(text);
+
+        const foundItem = this.findTestItemByIdEfficient(keyTemp);
+
+        if (foundItem?.uri) {
+            if (foundItem.range) {
+                message.location = new Location(foundItem.uri, foundItem.range);
+            }
+            runInstance.failed(foundItem, message);
+        }
+    }
+
+    /**
+     * Handle test items that passed during execution
+     */
+    private handleTestSuccess(keyTemp: string, runInstance: TestRun): void {
+        const grabTestItem = this.runIdToTestItem.get(keyTemp);
+
+        if (grabTestItem !== undefined) {
+            const foundItem = this.findTestItemByIdEfficient(keyTemp);
+            if (foundItem?.uri) {
+                runInstance.passed(grabTestItem);
+            }
+        }
+    }
+
+    /**
+     * Handle test items that were skipped during execution
+     */
+    private handleTestSkipped(keyTemp: string, runInstance: TestRun): void {
+        const grabTestItem = this.runIdToTestItem.get(keyTemp);
+
+        if (grabTestItem !== undefined) {
+            const foundItem = this.findTestItemByIdEfficient(keyTemp);
+            if (foundItem?.uri) {
+                runInstance.skipped(grabTestItem);
+            }
+        }
+    }
+
+    /**
+     * Handle subtest failures
+     */
+    private handleSubtestFailure(keyTemp: string, testItem: any, runInstance: TestRun): void {
+        const [parentTestCaseId, subtestId] = splitTestNameWithRegex(keyTemp);
+        const parentTestItem = this.runIdToTestItem.get(parentTestCaseId);
+
+        if (parentTestItem) {
+            const subtestStats = this.subTestStats.get(parentTestCaseId);
+            if (subtestStats) {
+                subtestStats.failed += 1;
+            } else {
+                this.subTestStats.set(parentTestCaseId, {
+                    failed: 1,
+                    passed: 0,
+                });
+                clearAllChildren(parentTestItem);
+            }
+
+            const subTestItem = this.testController?.createTestItem(subtestId, subtestId, parentTestItem.uri);
+
+            if (subTestItem) {
+                const traceback = testItem.traceback ?? '';
+                const text = `${testItem.subtest} failed: ${testItem.message ?? testItem.outcome}\r\n${traceback}`;
+                parentTestItem.children.add(subTestItem);
+                runInstance.started(subTestItem);
+                const message = new TestMessage(text);
+                if (parentTestItem.uri && parentTestItem.range) {
+                    message.location = new Location(parentTestItem.uri, parentTestItem.range);
+                }
+                runInstance.failed(subTestItem, message);
+            } else {
+                throw new Error('Unable to create new child node for subtest');
+            }
+        } else {
+            throw new Error('Parent test item not found');
+        }
+    }
+
+    /**
+     * Handle subtest successes
+     */
+    private handleSubtestSuccess(keyTemp: string, runInstance: TestRun): void {
+        const [parentTestCaseId, subtestId] = splitTestNameWithRegex(keyTemp);
+        const parentTestItem = this.runIdToTestItem.get(parentTestCaseId);
+
+        if (parentTestItem) {
+            const subtestStats = this.subTestStats.get(parentTestCaseId);
+            if (subtestStats) {
+                subtestStats.passed += 1;
+            } else {
+                this.subTestStats.set(parentTestCaseId, { failed: 0, passed: 1 });
+                clearAllChildren(parentTestItem);
+            }
+
+            const subTestItem = this.testController?.createTestItem(subtestId, subtestId, parentTestItem.uri);
+
+            if (subTestItem) {
+                parentTestItem.children.add(subTestItem);
+                runInstance.started(subTestItem);
+                runInstance.passed(subTestItem);
+            } else {
+                throw new Error('Unable to create new child node for subtest');
+            }
+        } else {
+            throw new Error('Parent test item not found');
+        }
+    }
+
+    /**
+     * Process test execution results and update VS Code's Test Explorer with outcomes.
+     * Uses efficient lookup methods to handle large numbers of test results.
+     */
     public _resolveExecution(payload: ExecutionTestPayload, runInstance: TestRun): void {
         const rawTestExecData = payload as ExecutionTestPayload;
         if (rawTestExecData !== undefined && rawTestExecData.result !== undefined) {
-            // Map which holds the subtest information for each test item.
-
-            // iterate through payload and update the UI accordingly.
             for (const keyTemp of Object.keys(rawTestExecData.result)) {
-                const testCases: TestItem[] = [];
-
-                // grab leaf level test items
-                this.testController.items.forEach((i) => {
-                    const tempArr: TestItem[] = getTestCaseNodes(i);
-                    testCases.push(...tempArr);
-                });
                 const testItem = rawTestExecData.result[keyTemp];
 
+                // Delegate to specific outcome handlers using efficient lookups
                 if (testItem.outcome === 'error') {
-                    const rawTraceback = testItem.traceback ?? '';
-                    const traceback = splitLines(rawTraceback, {
-                        trim: false,
-                        removeEmptyEntries: true,
-                    }).join('\r\n');
-                    const text = `${testItem.test} failed with error: ${
-                        testItem.message ?? testItem.outcome
-                    }\r\n${traceback}`;
-                    const message = new TestMessage(text);
-
-                    const grabVSid = this.runIdToVSid.get(keyTemp);
-                    // search through freshly built array of testItem to find the failed test and update UI.
-                    testCases.forEach((indiItem) => {
-                        if (indiItem.id === grabVSid) {
-                            if (indiItem.uri) {
-                                if (indiItem.range) {
-                                    message.location = new Location(indiItem.uri, indiItem.range);
-                                }
-                                runInstance.errored(indiItem, message);
-                            }
-                        }
-                    });
+                    this.handleTestError(keyTemp, testItem, runInstance);
                 } else if (testItem.outcome === 'failure' || testItem.outcome === 'passed-unexpected') {
-                    const rawTraceback = testItem.traceback ?? '';
-                    const traceback = splitLines(rawTraceback, {
-                        trim: false,
-                        removeEmptyEntries: true,
-                    }).join('\r\n');
-
-                    const text = `${testItem.test} failed: ${testItem.message ?? testItem.outcome}\r\n${traceback}`;
-                    const message = new TestMessage(text);
-
-                    // note that keyTemp is a runId for unittest library...
-                    const grabVSid = this.runIdToVSid.get(keyTemp);
-                    // search through freshly built array of testItem to find the failed test and update UI.
-                    testCases.forEach((indiItem) => {
-                        if (indiItem.id === grabVSid) {
-                            if (indiItem.uri) {
-                                if (indiItem.range) {
-                                    message.location = new Location(indiItem.uri, indiItem.range);
-                                }
-                                runInstance.failed(indiItem, message);
-                            }
-                        }
-                    });
+                    this.handleTestFailure(keyTemp, testItem, runInstance);
                 } else if (testItem.outcome === 'success' || testItem.outcome === 'expected-failure') {
-                    const grabTestItem = this.runIdToTestItem.get(keyTemp);
-                    const grabVSid = this.runIdToVSid.get(keyTemp);
-                    if (grabTestItem !== undefined) {
-                        testCases.forEach((indiItem) => {
-                            if (indiItem.id === grabVSid) {
-                                if (indiItem.uri) {
-                                    runInstance.passed(grabTestItem);
-                                }
-                            }
-                        });
-                    }
+                    this.handleTestSuccess(keyTemp, runInstance);
                 } else if (testItem.outcome === 'skipped') {
-                    const grabTestItem = this.runIdToTestItem.get(keyTemp);
-                    const grabVSid = this.runIdToVSid.get(keyTemp);
-                    if (grabTestItem !== undefined) {
-                        testCases.forEach((indiItem) => {
-                            if (indiItem.id === grabVSid) {
-                                if (indiItem.uri) {
-                                    runInstance.skipped(grabTestItem);
-                                }
-                            }
-                        });
-                    }
+                    this.handleTestSkipped(keyTemp, runInstance);
                 } else if (testItem.outcome === 'subtest-failure') {
-                    // split on [] or () based on how the subtest is setup.
-                    const [parentTestCaseId, subtestId] = splitTestNameWithRegex(keyTemp);
-                    const parentTestItem = this.runIdToTestItem.get(parentTestCaseId);
-                    const data = testItem;
-                    // find the subtest's parent test item
-                    if (parentTestItem) {
-                        const subtestStats = this.subTestStats.get(parentTestCaseId);
-                        if (subtestStats) {
-                            subtestStats.failed += 1;
-                        } else {
-                            this.subTestStats.set(parentTestCaseId, {
-                                failed: 1,
-                                passed: 0,
-                            });
-                            // clear since subtest items don't persist between runs
-                            clearAllChildren(parentTestItem);
-                        }
-                        const subTestItem = this.testController?.createTestItem(
-                            subtestId,
-                            subtestId,
-                            parentTestItem.uri,
-                        );
-                        // create a new test item for the subtest
-                        if (subTestItem) {
-                            const traceback = data.traceback ?? '';
-                            const text = `${data.subtest} failed: ${
-                                testItem.message ?? testItem.outcome
-                            }\r\n${traceback}`;
-                            parentTestItem.children.add(subTestItem);
-                            runInstance.started(subTestItem);
-                            const message = new TestMessage(text);
-                            if (parentTestItem.uri && parentTestItem.range) {
-                                message.location = new Location(parentTestItem.uri, parentTestItem.range);
-                            }
-                            runInstance.failed(subTestItem, message);
-                        } else {
-                            throw new Error('Unable to create new child node for subtest');
-                        }
-                    } else {
-                        throw new Error('Parent test item not found');
-                    }
+                    this.handleSubtestFailure(keyTemp, testItem, runInstance);
                 } else if (testItem.outcome === 'subtest-success') {
-                    // split on [] or () based on how the subtest is setup.
-                    const [parentTestCaseId, subtestId] = splitTestNameWithRegex(keyTemp);
-                    const parentTestItem = this.runIdToTestItem.get(parentTestCaseId);
-
-                    // find the subtest's parent test item
-                    if (parentTestItem) {
-                        const subtestStats = this.subTestStats.get(parentTestCaseId);
-                        if (subtestStats) {
-                            subtestStats.passed += 1;
-                        } else {
-                            this.subTestStats.set(parentTestCaseId, { failed: 0, passed: 1 });
-                            // clear since subtest items don't persist between runs
-                            clearAllChildren(parentTestItem);
-                        }
-                        const subTestItem = this.testController?.createTestItem(
-                            subtestId,
-                            subtestId,
-                            parentTestItem.uri,
-                        );
-                        // create a new test item for the subtest
-                        if (subTestItem) {
-                            parentTestItem.children.add(subTestItem);
-                            runInstance.started(subTestItem);
-                            runInstance.passed(subTestItem);
-                        } else {
-                            throw new Error('Unable to create new child node for subtest');
-                        }
-                    } else {
-                        throw new Error('Parent test item not found');
-                    }
+                    this.handleSubtestSuccess(keyTemp, runInstance);
                 }
             }
         }
diff --git a/src/test/testing/common/testingAdapter.test.ts b/src/test/testing/common/testingAdapter.test.ts
index dcd78dc23dba..97c04d5dfdf1 100644
--- a/src/test/testing/common/testingAdapter.test.ts
+++ b/src/test/testing/common/testingAdapter.test.ts
@@ -9,7 +9,11 @@ import * as fs from 'fs';
 import * as os from 'os';
 import * as sinon from 'sinon';
 import { PytestTestDiscoveryAdapter } from '../../../client/testing/testController/pytest/pytestDiscoveryAdapter';
-import { ITestController, ITestResultResolver } from '../../../client/testing/testController/common/types';
+import {
+    ITestController,
+    ITestResultResolver,
+    ExecutionTestPayload,
+} from '../../../client/testing/testController/common/types';
 import { IPythonExecutionFactory } from '../../../client/common/process/types';
 import { IConfigurationService } from '../../../client/common/types';
 import { IServiceContainer } from '../../../client/ioc/types';
@@ -1033,4 +1037,206 @@ suite('End to End Tests: test adapters', () => {
                 assert.strictEqual(failureOccurred, false, failureMsg);
             });
     });
+
+    test('_resolveExecution performance test: validates efficient test result processing', async () => {
+        // This test validates that _resolveExecution processes test results efficiently
+        // without expensive tree rebuilding or linear searching operations.
+        //
+        // The test ensures that processing many test results (like parameterized tests)
+        // remains fast and doesn't cause performance issues or stack overflow.
+
+        // ================================================================
+        // SETUP: Initialize test environment and tracking variables
+        // ================================================================
+        resultResolver = new PythonResultResolver(testController, pytestProvider, workspaceUri);
+
+        // Performance tracking variables
+        let totalCallTime = 0;
+        let callCount = 0;
+        const callTimes: number[] = [];
+        let treeRebuildCount = 0;
+        let totalSearchOperations = 0;
+
+        // Test configuration - Moderate scale to validate efficiency
+        const numTestFiles = 5; // Multiple test files
+        const testFunctionsPerFile = 10; // Test functions per file
+        const totalTestItems = numTestFiles * testFunctionsPerFile; // Total test items in mock tree
+        const numParameterizedResults = 15; // Number of parameterized test results to process
+
+        // ================================================================
+        // MOCK: Set up spies and function wrapping to track performance
+        // ================================================================
+
+        // Mock getTestCaseNodes to track expensive tree operations
+        const originalGetTestCaseNodes = require('../../../client/testing/testController/common/testItemUtilities')
+            .getTestCaseNodes;
+        const getTestCaseNodesSpy = sinon.stub().callsFake((item) => {
+            treeRebuildCount++;
+            const result = originalGetTestCaseNodes(item);
+            // Track search operations through tree items
+            // Safely handle undefined results
+            if (result && Array.isArray(result)) {
+                totalSearchOperations += result.length;
+            }
+            return result || []; // Return empty array if undefined
+        });
+
+        // Replace the real function with our spy
+        const testItemUtilities = require('../../../client/testing/testController/common/testItemUtilities');
+        testItemUtilities.getTestCaseNodes = getTestCaseNodesSpy;
+
+        // Wrap the _resolveExecution function to measure performance
+        const original_resolveExecution = resultResolver._resolveExecution.bind(resultResolver);
+        resultResolver._resolveExecution = async (payload, runInstance) => {
+            const startTime = performance.now();
+            callCount++;
+
+            // Call the actual implementation
+            await original_resolveExecution(payload, runInstance);
+
+            const endTime = performance.now();
+            const callTime = endTime - startTime;
+            callTimes.push(callTime);
+            totalCallTime += callTime;
+
+            return Promise.resolve();
+        };
+
+        // ================================================================
+        // SETUP: Create test data that simulates realistic test scenarios
+        // ================================================================
+
+        // Create a mock TestController with the methods we need
+        const mockTestController = {
+            items: new Map(),
+            createTestItem: (id: string, label: string, uri?: Uri) => {
+                const childrenMap = new Map();
+                // Add forEach method to children map to simulate TestItemCollection
+                (childrenMap as any).forEach = function (callback: (item: any) => void) {
+                    Map.prototype.forEach.call(this, callback);
+                };
+
+                const mockTestItem = {
+                    id,
+                    label,
+                    uri,
+                    children: childrenMap,
+                    parent: undefined,
+                    canResolveChildren: false,
+                    tags: [{ id: 'python-run' }, { id: 'python-debug' }],
+                };
+                return mockTestItem;
+            },
+            // Add a forEach method to simulate the problematic iteration
+            forEach: function (callback: (item: any) => void) {
+                this.items.forEach(callback);
+            },
+        }; // Replace the testController in our resolver
+        (resultResolver as any).testController = mockTestController;
+
+        // Create test controller with many test items (simulates real workspace)
+        for (let i = 0; i < numTestFiles; i++) {
+            const testItem = mockTestController.createTestItem(
+                `test_file_${i}`,
+                `Test File ${i}`,
+                Uri.file(`/test_${i}.py`),
+            );
+            mockTestController.items.set(`test_file_${i}`, testItem);
+
+            // Add child test items to each file
+            for (let j = 0; j < testFunctionsPerFile; j++) {
+                const childItem = mockTestController.createTestItem(
+                    `test_${i}_${j}`,
+                    `test_method_${j}`,
+                    Uri.file(`/test_${i}.py`),
+                );
+                testItem.children.set(`test_${i}_${j}`, childItem);
+
+                // Set up the ID mappings that the resolver uses
+                resultResolver.runIdToTestItem.set(`test_${i}_${j}`, childItem as any);
+                resultResolver.runIdToVSid.set(`test_${i}_${j}`, `test_${i}_${j}`);
+                resultResolver.vsIdToRunId.set(`test_${i}_${j}`, `test_${i}_${j}`);
+            }
+        } // Create payload with multiple test results (simulates real test execution)
+        const testResults: Record<string, any> = {};
+        for (let i = 0; i < numParameterizedResults; i++) {
+            testResults[`test_0_${i % 20}`] = {
+                test: `test_method[${i}]`,
+                outcome: 'success',
+                message: null,
+                traceback: null,
+                subtest: null,
+            };
+        }
+
+        const payload: ExecutionTestPayload = {
+            cwd: '/test',
+            status: 'success' as const,
+            error: '',
+            result: testResults,
+        };
+
+        const mockRunInstance = {
+            passed: sinon.stub(),
+            failed: sinon.stub(),
+            errored: sinon.stub(),
+            skipped: sinon.stub(),
+        };
+
+        // ================================================================
+        // EXECUTION: Run the performance test
+        // ================================================================
+
+        const overallStartTime = performance.now();
+
+        // Run the _resolveExecution function with test data
+        await resultResolver._resolveExecution(payload, mockRunInstance as any);
+
+        const overallEndTime = performance.now();
+        const totalTime = overallEndTime - overallStartTime;
+
+        // ================================================================
+        // CLEANUP: Restore original functions
+        // ================================================================
+        testItemUtilities.getTestCaseNodes = originalGetTestCaseNodes;
+
+        // ================================================================
+        // ASSERT: Verify efficient performance characteristics
+        // ================================================================
+        console.log(`\n=== PERFORMANCE RESULTS ===`);
+        console.log(
+            `Test setup: ${numTestFiles} files × ${testFunctionsPerFile} test functions = ${totalTestItems} total items`,
+        );
+        console.log(`Total execution time: ${totalTime.toFixed(2)}ms`);
+        console.log(`Tree operations performed: ${treeRebuildCount}`);
+        console.log(`Search operations: ${totalSearchOperations}`);
+        console.log(`Average time per call: ${(totalCallTime / callCount).toFixed(2)}ms`);
+        console.log(`Results processed: ${numParameterizedResults}`);
+
+        // Basic function call verification
+        assert.strictEqual(callCount, 1, 'Expected _resolveExecution to be called once');
+
+        // EFFICIENCY VERIFICATION: Ensure minimal expensive operations
+        assert.strictEqual(
+            treeRebuildCount,
+            0,
+            'Expected ZERO tree rebuilds - efficient implementation should use cached lookups',
+        );
+
+        assert.strictEqual(
+            totalSearchOperations,
+            0,
+            'Expected ZERO linear search operations - efficient implementation should use direct lookups',
+        );
+
+        // Performance threshold verification - should be fast
+        assert.ok(totalTime < 100, `Function should complete quickly, took ${totalTime}ms (should be under 100ms)`);
+
+        // Scalability check - time should not grow significantly with more results
+        const timePerResult = totalTime / numParameterizedResults;
+        assert.ok(
+            timePerResult < 10,
+            `Time per result should be minimal: ${timePerResult.toFixed(2)}ms per result (should be under 10ms)`,
+        );
+    });
 });

From f3675b0526405a01e8f6889824aa6cab2a2d1f85 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Sat, 20 Sep 2025 11:13:42 -0700
Subject: [PATCH 069/178] Add meta-instruction files for learnings and testing
 feature area (#25473)

---
 .github/instructions/learning.instructions.md |  34 ++++
 .../testing_feature_area.instructions.md      | 181 ++++++++++++++++++
 2 files changed, 215 insertions(+)
 create mode 100644 .github/instructions/learning.instructions.md
 create mode 100644 .github/instructions/testing_feature_area.instructions.md

diff --git a/.github/instructions/learning.instructions.md b/.github/instructions/learning.instructions.md
new file mode 100644
index 000000000000..28b085f486ce
--- /dev/null
+++ b/.github/instructions/learning.instructions.md
@@ -0,0 +1,34 @@
+---
+applyTo: '**'
+description: This document describes how to deal with learnings that you make. (meta instruction)
+---
+
+This document describes how to deal with learnings that you make.
+It is a meta-instruction file.
+
+Structure of learnings:
+
+-   Each instruction file has a "Learnings" section.
+-   Each learning has a counter that indicates how often that learning was useful (initially 1).
+-   Each learning has a 1 sentence description of the learning that is clear and concise.
+
+Example:
+
+```markdown
+## Learnings
+
+-   Prefer `const` over `let` whenever possible (1)
+-   Avoid `any` type (3)
+```
+
+When the user tells you "learn!", you should:
+
+-   extract a learning from the recent conversation
+    _ identify the problem that you created
+    _ identify why it was a problem
+    _ identify how you were told to fix it/how the user fixed it
+    _ generate only one learning (1 sentence) that helps to summarize the insight gained
+-   then, add the reflected learning to the "Learnings" section of the most appropriate instruction file
+
+Important: Whenever a learning was really useful, increase the counter!!
+When a learning was not useful and just caused more problems, decrease the counter.
diff --git a/.github/instructions/testing_feature_area.instructions.md b/.github/instructions/testing_feature_area.instructions.md
new file mode 100644
index 000000000000..9036ab4e3acd
--- /dev/null
+++ b/.github/instructions/testing_feature_area.instructions.md
@@ -0,0 +1,181 @@
+---
+applyTo: 'src/client/testing/**'
+---
+
+# Testing feature area — Discovery, Run, Debug, and Results
+
+This document maps the testing support in the extension: discovery, execution (run), debugging, result reporting and how those pieces connect to the codebase. It's written for contributors and agents who need to navigate, modify, or extend test support (both `unittest` and `pytest`).
+
+## Overview
+
+-   Purpose: expose Python tests in the VS Code Test Explorer (TestController), support discovery, run, debug, and surface rich results and outputs.
+-   Scope: provider-agnostic orchestration + provider-specific adapters, TestController mapping, IPC with Python-side scripts, debug launch integration, and configuration management.
+
+## High-level architecture
+
+-   Controller / UI bridge: orchestrates TestController requests and routes them to workspace adapters.
+-   Workspace adapter: provider-agnostic coordinator that translates TestController requests to provider adapters and maps payloads back into TestItems/TestRuns.
+-   Provider adapters: implement discovery/run/debug for `unittest` and `pytest` by launching Python scripts and wiring named-pipe IPC.
+-   Result resolver: translates Python-side JSON/IPCPayloads into TestController updates (start/pass/fail/output/attachments).
+-   Debug launcher: prepares debug sessions and coordinates the debugger attach flow with the Python runner.
+
+## Key components (files and responsibilities)
+
+-   Entrypoints
+    -   `src/client/testing/testController/controller.ts` — `PythonTestController` (main orchestrator).
+    -   `src/client/testing/serviceRegistry.ts` — DI/wiring for testing services.
+-   Workspace orchestration
+    -   `src/client/testing/testController/workspaceTestAdapter.ts` — `WorkspaceTestAdapter` (provider-agnostic entry used by controller).
+-   Provider adapters
+    -   Unittest
+        -   `src/client/testing/testController/unittest/testDiscoveryAdapter.ts`
+        -   `src/client/testing/testController/unittest/testExecutionAdapter.ts`
+    -   Pytest
+        -   `src/client/testing/testController/pytest/pytestDiscoveryAdapter.ts`
+        -   `src/client/testing/testController/pytest/pytestExecutionAdapter.ts`
+-   Result resolution and helpers
+    -   `src/client/testing/testController/common/resultResolver.ts` — `PythonResultResolver` (maps payload -> TestController updates).
+    -   `src/client/testing/testController/common/testItemUtilities.ts` — helpers for TestItem lifecycle.
+    -   `src/client/testing/testController/common/types.ts` — `ITestDiscoveryAdapter`, `ITestExecutionAdapter`, `ITestResultResolver`, `ITestDebugLauncher`.
+    -   `src/client/testing/testController/common/debugLauncher.ts` — debug session creation helper.
+    -   `src/client/testing/testController/common/utils.ts` — named-pipe helpers and command builders (`startDiscoveryNamedPipe`, etc.).
+-   Configuration
+    -   `src/client/testing/common/testConfigurationManager.ts` — per-workspace test settings.
+    -   `src/client/testing/configurationFactory.ts` — configuration service factory.
+-   Utilities & glue
+    -   `src/client/testing/utils.ts` — assorted helpers used by adapters.
+    -   Python-side scripts: `python_files/unittestadapter/*`, `python_files/pytestadapter/*` — discovery/run code executed by adapters.
+
+## Python subprocess runners (what runs inside Python)
+
+The adapters in the extension don't implement test discovery/run logic themselves — they spawn a Python subprocess that runs small helper scripts located under `python_files/` and stream structured events back to the extension over the named-pipe IPC. This is a central part of the feature area; changes here usually require coordinated edits in both the TypeScript adapters and the Python scripts.
+
+-   Unittest helpers (folder: `python_files/unittestadapter`)
+
+    -   `discovery.py` — performs `unittest` discovery and emits discovery payloads (test suites, cases, locations) on the IPC channel.
+    -   `execution.py` / `django_test_runner.py` — run tests for `unittest` and, where applicable, Django test runners; emit run events (start, stdout/stderr, pass, fail, skip, teardown) and attachment info.
+    -   `pvsc_utils.py`, `django_handler.py` — utility helpers used by the runners for environment handling and Django-specific wiring.
+    -   The adapter TypeScript files (`testDiscoveryAdapter.ts`, `testExecutionAdapter.ts`) construct the command line, start a named-pipe listener, and spawn these Python scripts using the extension's ExecutionFactory (activated interpreter) so the scripts execute inside the user's selected environment.
+
+-   Pytest helpers (folder: `python_files/vscode_pytest`)
+
+    -   `_common.py` — shared helpers for pytest runner scripts.
+    -   `run_pytest_script.py` — the primary pytest runner used for discovery and execution; emits the same structured IPC payloads the extension expects (discovery events and run events).
+    -   The `pytest` execution adapter (`pytestExecutionAdapter.ts`) and discovery adapter build the CLI to run `run_pytest_script.py`, start the pipe, and translate incoming payloads via `PythonResultResolver`.
+
+-   IPC contract and expectations
+
+    -   Adapters rely on a stable JSON payload contract emitted by the Python scripts: identifiers for tests, event types (discovered, collected, started, passed, failed, skipped), timings, error traces, and optional attachments (logs, captured stdout/stderr, file links).
+    -   The extension maps these payloads to `TestItem`/`TestRun` updates via `PythonResultResolver` (`src/client/testing/testController/common/resultResolver.ts`). If you change payload shape, update the resolver and tests concurrently.
+
+-   How the subprocess is started
+    -   Execution adapters use the extension's `ExecutionFactory` (preferred) to get an activated interpreter and then spawn a child process that runs the helper script. The adapter will set up environment variables and command-line args (including the pipe name / run-id) so the Python runner knows where to send events and how to behave (discovery vs run vs debug).
+    -   For debug sessions a debug-specific entry argument/port is passed and `common/debugLauncher.ts` coordinates starting a VS Code debug session that will attach to the Python process.
+
+## Core functionality (what to change where)
+
+-   Discovery
+    -   Entry: `WorkspaceTestAdapter.discoverTests` → provider discovery adapter. Adapter starts a named-pipe listener, spawns the discovery script in an activated interpreter, forwards discovery events to `PythonResultResolver` which creates/updates TestItems.
+    -   Files: `workspaceTestAdapter.ts`, `*DiscoveryAdapter.ts`, `resultResolver.ts`, `testItemUtilities.ts`.
+-   Run / Execution
+    -   Entry: `WorkspaceTestAdapter.executeTests` → provider execution adapter. Adapter spawns runner in an activated env, runner streams run events to the pipe, `PythonResultResolver` updates a `TestRun` with start/pass/fail and attachments.
+    -   Files: `workspaceTestAdapter.ts`, `*ExecutionAdapter.ts`, `resultResolver.ts`.
+-   Debugging
+    -   Flow: debug request flows like a run but goes through `debugLauncher.ts` to create a VS Code debug session with prepared ports/pipes. The Python runner coordinates attach/continue with the debugger.
+    -   Files: `*ExecutionAdapter.ts`, `common/debugLauncher.ts`, `common/types.ts`.
+-   Result reporting
+    -   `resultResolver.ts` is the canonical place to change how JSON payloads map to TestController constructs (messages, durations, error traces, attachments).
+
+## Typical workflows (short)
+
+-   Full discovery
+
+    1. `PythonTestController` triggers discovery -> `WorkspaceTestAdapter.discoverTests`.
+    2. Provider discovery adapter starts pipe and launches Python discovery script.
+    3. Discovery events -> `PythonResultResolver` -> TestController tree updated.
+
+-   Run tests
+
+    1. Controller collects TestItems -> creates `TestRun`.
+    2. `WorkspaceTestAdapter.executeTests` delegates to execution adapter which launches the runner.
+    3. Runner events arrive via pipe -> `PythonResultResolver` updates `TestRun`.
+    4. On process exit the run is finalized.
+
+-   Debug a test
+    1. Debug request flows to execution adapter.
+    2. Adapter prepares ports and calls `debugLauncher` to start a VS Code debug session with the run ID.
+    3. Runner coordinates with the debugger; `PythonResultResolver` still receives and applies run events.
+
+## Tests and examples to inspect
+
+-   Unit/integration tests for adapters and orchestration under `src/test/` (examples):
+    -   `src/test/testing/common/testingAdapter.test.ts`
+    -   `src/test/testing/testController/workspaceTestAdapter.unit.test.ts`
+    -   `src/test/testing/testController/unittest/testExecutionAdapter.unit.test.ts`
+    -   Adapter tests demonstrate expected telemetry, debug-launch payloads and result resolution.
+
+## History & evolution (brief)
+
+-   Migration to TestController API: the code organizes around VS Code TestController, mapping legacy adapter behaviour into TestItems/TestRuns.
+-   Named-pipe IPC: discovery/run use named-pipe IPC to stream events from Python runner scripts (`python_files/*`) which enables richer, incremental updates and debug coordination.
+-   Environment activation: adapters prefer the extension ExecutionFactory (activated interpreter) to run discovery and test scripts.
+
+## Pointers for contributors (practical)
+
+-   To extend discovery output: update the Python discovery script in `python_files/*` and `resultResolver.ts` to parse new payload fields.
+-   To change run behaviour (args/env/timouts): update the provider execution adapter (`*ExecutionAdapter.ts`) and add/update tests under `src/test/`.
+-   To change debug flow: edit `common/debugLauncher.ts` and adapters' debug paths; update tests that assert launch argument shapes.
+
+## Django support (how it works)
+
+-   The extension supports Django projects by delegating discovery and execution to Django-aware Python helpers under `python_files/unittestadapter`.
+    -   `python_files/unittestadapter/django_handler.py` contains helpers that invoke `manage.py` for discovery or execute Django test runners inside the project context.
+    -   `python_files/unittestadapter/django_test_runner.py` provides `CustomDiscoveryTestRunner` and `CustomExecutionTestRunner` which integrate with the extension by using the same IPC contract (they use `UnittestTestResult` and `send_post_request` to emit discovery/run payloads).
+-   How adapters pass Django configuration:
+    -   Execution adapters set environment variables (e.g. `MANAGE_PY_PATH`) and modify `PYTHONPATH` so Django code and the custom test runner are importable inside the spawned subprocess.
+    -   For discovery the adapter may run the discovery helper which calls `manage.py test` with a custom test runner that emits discovery payloads instead of executing tests.
+-   Practical notes for contributors:
+    -   Changes to Django discovery/execution often require edits in both `django_test_runner.py`/`django_handler.py` and the TypeScript adapters (`testDiscoveryAdapter.ts` / `testExecutionAdapter.ts`).
+    -   The Django test runner expects `TEST_RUN_PIPE` environment variable to be present to send IPC events (see `django_test_runner.py`).
+
+## Settings referenced by this feature area
+
+-   The extension exposes several `python.testing.*` settings used by adapters and configuration code (declared in `package.json`):
+    -   `python.testing.pytestEnabled`, `python.testing.unittestEnabled` — enable/disable frameworks.
+    -   `python.testing.pytestPath`, `python.testing.pytestArgs`, `python.testing.unittestArgs` — command path and CLI arguments used when spawning helper scripts.
+    -   `python.testing.cwd` — optional working directory used when running discovery/runs.
+    -   `python.testing.autoTestDiscoverOnSaveEnabled`, `python.testing.autoTestDiscoverOnSavePattern` — control automatic discovery on save.
+    -   `python.testing.debugPort` — default port used for debug runs.
+    -   `python.testing.promptToConfigure` — whether to prompt users to configure tests when potential test folders are found.
+-   Where to look in the code:
+    -   Settings are consumed by `src/client/testing/common/testConfigurationManager.ts`, `src/client/testing/configurationFactory.ts`, and adapters under `src/client/testing/testController/*` which read settings to build CLI args and env for subprocesses.
+    -   The setting definitions and descriptions are in `package.json` and localized strings in `package.nls.json`.
+
+## Coverage support (how it works)
+
+-   Coverage is supported by running the Python helper scripts with coverage enabled and then collecting a coverage payload from the runner.
+    -   Pytest-side coverage logic lives in `python_files/vscode_pytest/__init__.py` (checks `COVERAGE_ENABLED`, imports `coverage`, computes per-file metrics and emits a `CoveragePayloadDict`).
+    -   Unittest adapters enable coverage by setting environment variable(s) (e.g. `COVERAGE_ENABLED`) when launching the subprocess; adapters and `resultResolver.ts` handle the coverage profile kind (`TestRunProfileKind.Coverage`).
+-   Flow summary:
+    1. User starts a Coverage run via Test Explorer (profile kind `Coverage`).
+    2. Controller/adapters set `COVERAGE_ENABLED` (or equivalent) in the subprocess env and invoke the runner script.
+    3. The Python runner collects coverage (using `coverage` or `pytest-cov`), builds a file-level coverage map, and sends a coverage payload back over the IPC.
+    4. `PythonResultResolver` (`src/client/testing/testController/common/resultResolver.ts`) receives the coverage payload and stores `detailedCoverageMap` used by the TestController profile to show file-level coverage details.
+-   Tests that exercise coverage flows are under `src/test/testing/*` and `python_files/tests/*` (see `testingAdapter.test.ts` and adapter unit tests that assert `COVERAGE_ENABLED` is set appropriately).
+
+## Interaction with the VS Code API
+
+-   TestController API
+    -   The feature area is built on VS Code's TestController/TestItem/TestRun APIs (`vscode.tests.createTestController` / `tests.createTestController` in the code). The controller creates a `TestController` in `src/client/testing/testController/controller.ts` and synchronizes `TestItem` trees with discovery payloads.
+    -   `PythonResultResolver` maps incoming JSON events to VS Code API calls: `testRun.appendOutput`, `testRun.passed/failed/skipped`, `testRun.end`, and `TestItem` updates (labels, locations, children).
+-   Debug API
+    -   Debug runs use the Debug API to start an attach/launch session. The debug launcher implementation is in `src/client/testing/testController/common/debugLauncher.ts` which constructs a debug configuration and calls the VS Code debug API to start a session (e.g. `vscode.debug.startDebugging`).
+    -   Debug adapter/resolver code in the extension's debugger modules may also be used when attaching to Django or test subprocesses.
+-   Commands and configuration
+    -   The Test Controller wires commands that appear in the Test Explorer and editor context menus (see `package.json` contributes `commands`) and listens to configuration changes filtered by `python.testing` in `src/client/testing/main.ts`.
+-   Execution factory & activated environments
+    -   Adapters use the extension `ExecutionFactory` to spawn subprocesses in an activated interpreter (so the user's venv/conda is used). This involves the extension's internal environment execution APIs and sometimes `envExt` helpers when the external environment extension is present.
+
+## Learnings
+
+-   Never await `showErrorMessage()` calls in test execution adapters as it blocks the test UI thread and freezes the Test Explorer (1)

From 89c7e7224b86fc3833cf1889bd028501136d0ee9 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Sat, 20 Sep 2025 11:42:07 -0700
Subject: [PATCH 070/178] add "copy test id" to menu (#25475)

fixes https://github.com/microsoft/vscode-python/issues/25476
---
 .github/instructions/testing_feature_area.instructions.md | 6 ++++++
 package.json                                              | 7 +++++++
 2 files changed, 13 insertions(+)

diff --git a/.github/instructions/testing_feature_area.instructions.md b/.github/instructions/testing_feature_area.instructions.md
index 9036ab4e3acd..038dc1025ea5 100644
--- a/.github/instructions/testing_feature_area.instructions.md
+++ b/.github/instructions/testing_feature_area.instructions.md
@@ -173,9 +173,15 @@ The adapters in the extension don't implement test discovery/run logic themselve
     -   Debug adapter/resolver code in the extension's debugger modules may also be used when attaching to Django or test subprocesses.
 -   Commands and configuration
     -   The Test Controller wires commands that appear in the Test Explorer and editor context menus (see `package.json` contributes `commands`) and listens to configuration changes filtered by `python.testing` in `src/client/testing/main.ts`.
+-   The "Copy Test ID" command (`python.copyTestId`) can be accessed from both the Test Explorer context menu (`testing/item/context`) and the editor gutter icon context menu (`testing/item/gutter`). This command copies test identifiers to the clipboard in the appropriate format for the active test framework (pytest path format or unittest module.class.method format).
 -   Execution factory & activated environments
     -   Adapters use the extension `ExecutionFactory` to spawn subprocesses in an activated interpreter (so the user's venv/conda is used). This involves the extension's internal environment execution APIs and sometimes `envExt` helpers when the external environment extension is present.
 
 ## Learnings
 
 -   Never await `showErrorMessage()` calls in test execution adapters as it blocks the test UI thread and freezes the Test Explorer (1)
+-   VS Code test-related context menus are contributed to using both `testing/item/context` and `testing/item/gutter` menu locations in package.json for full coverage (1)
+
+```
+
+```
diff --git a/package.json b/package.json
index 0530726310f2..9bb3886d4fdc 100644
--- a/package.json
+++ b/package.json
@@ -1244,6 +1244,13 @@
                     "when": "controllerId == 'python-tests'"
                 }
             ],
+            "testing/item/gutter": [
+                {
+                    "command": "python.copyTestId",
+                    "group": "navigation",
+                    "when": "controllerId == 'python-tests'"
+                }
+            ],
             "commandPalette": [
                 {
                     "category": "Python",

From df1e567f233871d2f333248583418c844c67bc06 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Sat, 20 Sep 2025 11:48:45 -0700
Subject: [PATCH 071/178] Add implementation and usage instruction prompts for
 VS Code components (#25477)

---
 .../extract-impl-instructions.prompt.md       | 79 +++++++++++++++++++
 .../extract-usage-instructions.prompt.md      | 30 +++++++
 2 files changed, 109 insertions(+)
 create mode 100644 .github/prompts/extract-impl-instructions.prompt.md
 create mode 100644 .github/prompts/extract-usage-instructions.prompt.md

diff --git a/.github/prompts/extract-impl-instructions.prompt.md b/.github/prompts/extract-impl-instructions.prompt.md
new file mode 100644
index 000000000000..c2fb08b443c7
--- /dev/null
+++ b/.github/prompts/extract-impl-instructions.prompt.md
@@ -0,0 +1,79 @@
+---
+mode: edit
+---
+
+Analyze the specified part of the VS Code Python Extension codebase to generate or update implementation instructions in `.github/instructions/<component>.instructions.md`.
+
+## Task
+
+Create concise developer guidance focused on:
+
+### Implementation Essentials
+
+-   **Core patterns**: How this component is typically implemented and extended
+-   **Key interfaces**: Essential classes, services, and APIs with usage examples
+-   **Integration points**: How this component interacts with other extension parts
+-   **Common tasks**: Typical development scenarios with step-by-step guidance
+
+### Content Structure
+
+````markdown
+---
+description: 'Implementation guide for the <component> part of the Python Extension'
+---
+
+# <Component> Implementation Guide
+
+## Overview
+
+Brief description of the component's purpose and role in VS Code Python Extension.
+
+## Key Concepts
+
+-   Main abstractions and their responsibilities
+-   Important interfaces and base classes
+
+## Common Implementation Patterns
+
+### Pattern 1: [Specific Use Case]
+
+```typescript
+// Code example showing typical implementation
+```
+````
+
+### Pattern 2: [Another Use Case]
+
+```typescript
+// Another practical example
+```
+
+## Integration Points
+
+-   How this component connects to other VS Code Python Extension systems
+-   Required services and dependencies
+-   Extension points and contribution models
+
+## Essential APIs
+
+-   Key methods and interfaces developers need
+-   Common parameters and return types
+
+## Gotchas and Best Practices
+
+-   Non-obvious behaviors to watch for
+-   Performance considerations
+-   Common mistakes to avoid
+
+```
+
+## Guidelines
+- **Be specific**: Use actual class names, method signatures, and file paths
+- **Show examples**: Include working code snippets from the codebase
+- **Target implementation**: Focus on how to build with/extend this component
+- **Keep it actionable**: Every section should help developers accomplish tasks
+
+Source conventions from existing `.github/instructions/*.instructions.md`, `CONTRIBUTING.md`, and codebase patterns.
+
+If `.github/instructions/<component>.instructions.md` exists, intelligently merge new insights with existing content.
+```
diff --git a/.github/prompts/extract-usage-instructions.prompt.md b/.github/prompts/extract-usage-instructions.prompt.md
new file mode 100644
index 000000000000..ea48f162a220
--- /dev/null
+++ b/.github/prompts/extract-usage-instructions.prompt.md
@@ -0,0 +1,30 @@
+---
+mode: edit
+---
+
+Analyze the user requested part of the codebase (use a suitable <placeholder>) to generate or update `.github/instructions/<placeholder>.instructions.md` for guiding developers and AI coding agents.
+
+Focus on practical usage patterns and essential knowledge:
+
+-   How to use, extend, or integrate with this code area
+-   Key architectural patterns and conventions specific to this area
+-   Common implementation patterns with code examples
+-   Integration points and typical interaction patterns with other components
+-   Essential gotchas and non-obvious behaviors
+
+Source existing conventions from `.github/instructions/*.instructions.md`, `CONTRIBUTING.md`, and `README.md`.
+
+Guidelines:
+
+-   Write concise, actionable instructions using markdown structure
+-   Document discoverable patterns with concrete examples
+-   If `.github/instructions/<placeholder>.instructions.md` exists, merge intelligently
+-   Target developers who need to work with or extend this code area
+
+Update `.github/instructions/<placeholder>.instructions.md` with header:
+
+```
+---
+description: "How to work with the <placeholder> part of the codebase"
+---
+```

From 19a2f3468b6e114ddf219bbe9282b0e2d16e85e8 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Wed, 1 Oct 2025 14:33:54 -0700
Subject: [PATCH 072/178] bump to v2025.16.0 (#25497)

---
 package-lock.json | 4 ++--
 package.json      | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 2775ed2d88cb..fb32e01ddba6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "python",
-    "version": "2025.15.0-dev",
+    "version": "2025.16.0",
     "lockfileVersion": 2,
     "requires": true,
     "packages": {
         "": {
             "name": "python",
-            "version": "2025.15.0-dev",
+            "version": "2025.16.0",
             "license": "MIT",
             "dependencies": {
                 "@iarna/toml": "^2.2.5",
diff --git a/package.json b/package.json
index 9bb3886d4fdc..516b35e31e18 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
     "name": "python",
     "displayName": "Python",
     "description": "Python language support with extension access points for IntelliSense (Pylance), Debugging (Python Debugger), linting, formatting, refactoring, unit tests, and more.",
-    "version": "2025.15.0-dev",
+    "version": "2025.16.0",
     "featureFlags": {
         "usingNewInterpreterStorage": true
     },

From 9cb5ae71b07ad63feccf9ffe7f84a8162103548e Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Wed, 1 Oct 2025 14:49:46 -0700
Subject: [PATCH 073/178] bump v2025.17.0-dev (#25498)

---
 package-lock.json | 4 ++--
 package.json      | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index fb32e01ddba6..d6391e017d88 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "python",
-    "version": "2025.16.0",
+    "version": "2025.17.0-dev",
     "lockfileVersion": 2,
     "requires": true,
     "packages": {
         "": {
             "name": "python",
-            "version": "2025.16.0",
+            "version": "2025.17.0-dev",
             "license": "MIT",
             "dependencies": {
                 "@iarna/toml": "^2.2.5",
diff --git a/package.json b/package.json
index 516b35e31e18..f54d359963a4 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
     "name": "python",
     "displayName": "Python",
     "description": "Python language support with extension access points for IntelliSense (Pylance), Debugging (Python Debugger), linting, formatting, refactoring, unit tests, and more.",
-    "version": "2025.16.0",
+    "version": "2025.17.0-dev",
     "featureFlags": {
         "usingNewInterpreterStorage": true
     },

From 9cba9a050a80f8a854444cb68013fe17ddef20eb Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Thu, 16 Oct 2025 08:22:19 -0700
Subject: [PATCH 074/178] Bump actions/setup-node from 5 to 6 in
 /.github/actions/lint (#25528)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 5
to 6.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/actions/setup-node/releases">actions/setup-node's
releases</a>.</em></p>
<blockquote>
<h2>v6.0.0</h2>
<h2>What's Changed</h2>
<p><strong>Breaking Changes</strong></p>
<ul>
<li>Limit automatic caching to npm, update workflows and documentation
by <a
href="https://github.com/priyagupta108"><code>@​priyagupta108</code></a>
in <a
href="https://redirect.github.com/actions/setup-node/pull/1374">actions/setup-node#1374</a></li>
</ul>
<p><strong>Dependency Upgrades</strong></p>
<ul>
<li>Upgrade ts-jest from 29.1.2 to 29.4.1 and document breaking changes
in v5 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-node/pull/1336">#1336</a></li>
<li>Upgrade prettier from 2.8.8 to 3.6.2 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-node/pull/1334">#1334</a></li>
<li>Upgrade actions/publish-action from 0.3.0 to 0.4.0 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-node/pull/1362">#1362</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/setup-node/compare/v5...v6.0.0">https://github.com/actions/setup-node/compare/v5...v6.0.0</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/actions/setup-node/commit/2028fbc5c25fe9cf00d9f06a71cc4710d4507903"><code>2028fbc</code></a>
Limit automatic caching to npm, update workflows and documentation (<a
href="https://redirect.github.com/actions/setup-node/issues/1374">#1374</a>)</li>
<li><a
href="https://github.com/actions/setup-node/commit/13427813f706a0f6c9b74603b31103c40ab1c35a"><code>1342781</code></a>
Bump actions/publish-action from 0.3.0 to 0.4.0 (<a
href="https://redirect.github.com/actions/setup-node/issues/1362">#1362</a>)</li>
<li><a
href="https://github.com/actions/setup-node/commit/89d709d423dc495668cd762a18dd4a070611be3f"><code>89d709d</code></a>
Bump prettier from 2.8.8 to 3.6.2 (<a
href="https://redirect.github.com/actions/setup-node/issues/1334">#1334</a>)</li>
<li><a
href="https://github.com/actions/setup-node/commit/cd2651c46231bc0d6f48d6b34433b845331235fe"><code>cd2651c</code></a>
Bump ts-jest from 29.1.2 to 29.4.1 (<a
href="https://redirect.github.com/actions/setup-node/issues/1336">#1336</a>)</li>
<li>See full diff in <a
href="https://github.com/actions/setup-node/compare/v5...v6">compare
view</a></li>
</ul>
</details>
<br />


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<details>
<summary>Dependabot commands and options</summary>
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You can trigger Dependabot actions by commenting on this PR:
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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 .github/actions/lint/action.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/actions/lint/action.yml b/.github/actions/lint/action.yml
index 9971c0fbcf96..0bd5a2d8e1e2 100644
--- a/.github/actions/lint/action.yml
+++ b/.github/actions/lint/action.yml
@@ -10,7 +10,7 @@ runs:
   using: 'composite'
   steps:
     - name: Install Node
-      uses: actions/setup-node@v5
+      uses: actions/setup-node@v6
       with:
         node-version: ${{ inputs.node_version }}
         cache: 'npm'

From e6cd7aa2d11a257ceb5aab748c2f2e6d3743c5e0 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Thu, 16 Oct 2025 14:00:22 -0700
Subject: [PATCH 075/178] support new env kind from pet `venvUv` (#25532)

python extension will handle envs created by uv the same as any venvs,
so just adding the `venvUv` kind to map to `venv`. The python
environments extension will handle uv environments differently and not
just bundle them by default
---
 .../base/locators/common/nativePythonUtils.ts                   | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/client/pythonEnvironments/base/locators/common/nativePythonUtils.ts b/src/client/pythonEnvironments/base/locators/common/nativePythonUtils.ts
index 86135924537f..a4dfad724082 100644
--- a/src/client/pythonEnvironments/base/locators/common/nativePythonUtils.ts
+++ b/src/client/pythonEnvironments/base/locators/common/nativePythonUtils.ts
@@ -23,6 +23,7 @@ export enum NativePythonEnvironmentKind {
     VirtualEnvWrapper = 'VirtualEnvWrapper',
     WindowsStore = 'WindowsStore',
     WindowsRegistry = 'WindowsRegistry',
+    VenvUv = 'VenvUv',
 }
 
 const mapping = new Map<NativePythonEnvironmentKind, PythonEnvKind>([
@@ -36,6 +37,7 @@ const mapping = new Map<NativePythonEnvironmentKind, PythonEnvKind>([
     [NativePythonEnvironmentKind.VirtualEnv, PythonEnvKind.VirtualEnv],
     [NativePythonEnvironmentKind.VirtualEnvWrapper, PythonEnvKind.VirtualEnvWrapper],
     [NativePythonEnvironmentKind.Venv, PythonEnvKind.Venv],
+    [NativePythonEnvironmentKind.VenvUv, PythonEnvKind.Venv],
     [NativePythonEnvironmentKind.WindowsRegistry, PythonEnvKind.System],
     [NativePythonEnvironmentKind.WindowsStore, PythonEnvKind.MicrosoftStore],
     [NativePythonEnvironmentKind.Homebrew, PythonEnvKind.System],

From 900ae9c7ac772ce6296209290982d379e4cc9abb Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Thu, 16 Oct 2025 14:01:54 -0700
Subject: [PATCH 076/178] Bump actions/setup-node from 5 to 6 (#25527)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 5
to 6.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/actions/setup-node/releases">actions/setup-node's
releases</a>.</em></p>
<blockquote>
<h2>v6.0.0</h2>
<h2>What's Changed</h2>
<p><strong>Breaking Changes</strong></p>
<ul>
<li>Limit automatic caching to npm, update workflows and documentation
by <a
href="https://github.com/priyagupta108"><code>@​priyagupta108</code></a>
in <a
href="https://redirect.github.com/actions/setup-node/pull/1374">actions/setup-node#1374</a></li>
</ul>
<p><strong>Dependency Upgrades</strong></p>
<ul>
<li>Upgrade ts-jest from 29.1.2 to 29.4.1 and document breaking changes
in v5 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-node/pull/1336">#1336</a></li>
<li>Upgrade prettier from 2.8.8 to 3.6.2 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-node/pull/1334">#1334</a></li>
<li>Upgrade actions/publish-action from 0.3.0 to 0.4.0 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-node/pull/1362">#1362</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/setup-node/compare/v5...v6.0.0">https://github.com/actions/setup-node/compare/v5...v6.0.0</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/actions/setup-node/commit/2028fbc5c25fe9cf00d9f06a71cc4710d4507903"><code>2028fbc</code></a>
Limit automatic caching to npm, update workflows and documentation (<a
href="https://redirect.github.com/actions/setup-node/issues/1374">#1374</a>)</li>
<li><a
href="https://github.com/actions/setup-node/commit/13427813f706a0f6c9b74603b31103c40ab1c35a"><code>1342781</code></a>
Bump actions/publish-action from 0.3.0 to 0.4.0 (<a
href="https://redirect.github.com/actions/setup-node/issues/1362">#1362</a>)</li>
<li><a
href="https://github.com/actions/setup-node/commit/89d709d423dc495668cd762a18dd4a070611be3f"><code>89d709d</code></a>
Bump prettier from 2.8.8 to 3.6.2 (<a
href="https://redirect.github.com/actions/setup-node/issues/1334">#1334</a>)</li>
<li><a
href="https://github.com/actions/setup-node/commit/cd2651c46231bc0d6f48d6b34433b845331235fe"><code>cd2651c</code></a>
Bump ts-jest from 29.1.2 to 29.4.1 (<a
href="https://redirect.github.com/actions/setup-node/issues/1336">#1336</a>)</li>
<li>See full diff in <a
href="https://github.com/actions/setup-node/compare/v5...v6">compare
view</a></li>
</ul>
</details>
<br />


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`@dependabot rebase`.

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<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 .github/workflows/build.yml    | 2 +-
 .github/workflows/pr-check.yml | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 88b88ebc2876..b4ac46558b63 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -236,7 +236,7 @@ jobs:
           sparse-checkout-cone-mode: false
 
       - name: Install Node
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           node-version: ${{ env.NODE_VERSION }}
           cache: 'npm'
diff --git a/.github/workflows/pr-check.yml b/.github/workflows/pr-check.yml
index c932c314682d..2af03922411c 100644
--- a/.github/workflows/pr-check.yml
+++ b/.github/workflows/pr-check.yml
@@ -233,7 +233,7 @@ jobs:
           sparse-checkout-cone-mode: false
 
       - name: Install Node
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           node-version: ${{ env.NODE_VERSION }}
           cache: 'npm'
@@ -505,7 +505,7 @@ jobs:
           sparse-checkout-cone-mode: false
 
       - name: Install Node
-        uses: actions/setup-node@v5
+        uses: actions/setup-node@v6
         with:
           node-version: ${{ env.NODE_VERSION }}
           cache: 'npm'

From 99d5dc27f79fa310b336e880f40cd1d1ef04fa17 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Mon, 27 Oct 2025 18:36:15 -0700
Subject: [PATCH 077/178] switch to uv for tag (#25551)

support https://github.com/microsoft/python-environment-tools/pull/263
---
 .../base/locators/common/nativePythonUtils.ts                   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/client/pythonEnvironments/base/locators/common/nativePythonUtils.ts b/src/client/pythonEnvironments/base/locators/common/nativePythonUtils.ts
index a4dfad724082..716bdd444633 100644
--- a/src/client/pythonEnvironments/base/locators/common/nativePythonUtils.ts
+++ b/src/client/pythonEnvironments/base/locators/common/nativePythonUtils.ts
@@ -23,7 +23,7 @@ export enum NativePythonEnvironmentKind {
     VirtualEnvWrapper = 'VirtualEnvWrapper',
     WindowsStore = 'WindowsStore',
     WindowsRegistry = 'WindowsRegistry',
-    VenvUv = 'VenvUv',
+    VenvUv = 'Uv',
 }
 
 const mapping = new Map<NativePythonEnvironmentKind, PythonEnvKind>([

From 2ce21a028fa9fd967b630146374183f56f21d3ad Mon Sep 17 00:00:00 2001
From: iBug <git@ibugone.com>
Date: Fri, 7 Nov 2025 16:14:16 +0800
Subject: [PATCH 078/178] Fix microsoft/vscode#232420: Python REPL cursor
 drifting (#25521)

It seems `readline` is only imported if `sys.platform != "win32"`, so
this fix is applied on that condition too.

Context: microsoft/vscode#232420
---
 python_files/pythonrc.py                     | 4 +++-
 python_files/tests/test_shell_integration.py | 4 ++--
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/python_files/pythonrc.py b/python_files/pythonrc.py
index 005b06bcdd15..63c52bc009da 100644
--- a/python_files/pythonrc.py
+++ b/python_files/pythonrc.py
@@ -52,7 +52,9 @@ def __str__(self):
         result = ""
         # For non-windows allow recent_command history.
         if sys.platform != "win32":
-            result = "{command_executed}{command_line}{command_finished}{prompt_started}{prompt}{command_start}".format(
+            result = "{soh}{command_executed}{command_line}{command_finished}{prompt_started}{stx}{prompt}{soh}{command_start}{stx}".format(
+                soh="\001",
+                stx="\002",
                 command_executed="\x1b]633;C\x07",
                 command_line="\x1b]633;E;" + str(get_last_command()) + "\x07",
                 command_finished="\x1b]633;D;" + str(exit_code) + "\x07",
diff --git a/python_files/tests/test_shell_integration.py b/python_files/tests/test_shell_integration.py
index 574edfc056b4..7503a725b6d1 100644
--- a/python_files/tests/test_shell_integration.py
+++ b/python_files/tests/test_shell_integration.py
@@ -17,7 +17,7 @@ def test_decoration_success():
     if sys.platform != "win32" and (not is_wsl):
         assert (
             result
-            == "\x1b]633;C\x07\x1b]633;E;None\x07\x1b]633;D;0\x07\x1b]633;A\x07>>> \x1b]633;B\x07"
+            == "\x01\x1b]633;C\x07\x1b]633;E;None\x07\x1b]633;D;0\x07\x1b]633;A\x07\x02>>> \x01\x1b]633;B\x07\x02"
         )
     else:
         pass
@@ -32,7 +32,7 @@ def test_decoration_failure():
     if sys.platform != "win32" and (not is_wsl):
         assert (
             result
-            == "\x1b]633;C\x07\x1b]633;E;None\x07\x1b]633;D;1\x07\x1b]633;A\x07>>> \x1b]633;B\x07"
+            == "\x01\x1b]633;C\x07\x1b]633;E;None\x07\x1b]633;D;1\x07\x1b]633;A\x07\x02>>> \x01\x1b]633;B\x07\x02"
         )
     else:
         pass

From cd771ca8b34b36495cf1bf25c8441569164a6917 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Mon, 10 Nov 2025 10:19:45 -0800
Subject: [PATCH 079/178] Refactor test and discovery methods to remove
 overload (#25572)

---
 .../testing/testController/common/types.ts    | 12 +++----
 .../testing/testController/controller.ts      |  8 ++---
 .../pytest/pytestDiscoveryAdapter.ts          |  6 ++--
 .../pytest/pytestExecutionAdapter.ts          | 34 +++++++++---------
 .../unittest/testDiscoveryAdapter.ts          |  6 ++--
 .../unittest/testExecutionAdapter.ts          | 34 +++++++++---------
 .../testController/workspaceTestAdapter.ts    | 36 +++++++++----------
 .../workspaceTestAdapter.unit.test.ts         | 31 +++++++++-------
 8 files changed, 83 insertions(+), 84 deletions(-)

diff --git a/src/client/testing/testController/common/types.ts b/src/client/testing/testController/common/types.ts
index b4d95af6c30e..5c6796905024 100644
--- a/src/client/testing/testController/common/types.ts
+++ b/src/client/testing/testController/common/types.ts
@@ -155,11 +155,9 @@ export interface ITestResultResolver {
     _resolveCoverage(payload: CoveragePayload, runInstance: TestRun): void;
 }
 export interface ITestDiscoveryAdapter {
-    // ** first line old method signature, second line new method signature
-    discoverTests(uri: Uri): Promise<void>;
     discoverTests(
         uri: Uri,
-        executionFactory?: IPythonExecutionFactory,
+        executionFactory: IPythonExecutionFactory,
         token?: CancellationToken,
         interpreter?: PythonEnvironment,
     ): Promise<void>;
@@ -167,14 +165,12 @@ export interface ITestDiscoveryAdapter {
 
 // interface for execution/runner adapter
 export interface ITestExecutionAdapter {
-    // ** first line old method signature, second line new method signature
-    runTests(uri: Uri, testIds: string[], profileKind?: boolean | TestRunProfileKind): Promise<void>;
     runTests(
         uri: Uri,
         testIds: string[],
-        profileKind?: boolean | TestRunProfileKind,
-        runInstance?: TestRun,
-        executionFactory?: IPythonExecutionFactory,
+        profileKind: boolean | TestRunProfileKind | undefined,
+        runInstance: TestRun,
+        executionFactory: IPythonExecutionFactory,
         debugLauncher?: ITestDebugLauncher,
         interpreter?: PythonEnvironment,
     ): Promise<void>;
diff --git a/src/client/testing/testController/controller.ts b/src/client/testing/testController/controller.ts
index aefc97117da5..b38c9b0bcee1 100644
--- a/src/client/testing/testController/controller.ts
+++ b/src/client/testing/testController/controller.ts
@@ -276,8 +276,8 @@ export class PythonTestController implements ITestController, IExtensionSingleAc
                         }
                         await testAdapter.discoverTests(
                             this.testController,
-                            this.refreshCancellation.token,
                             this.pythonExecFactory,
+                            this.refreshCancellation.token,
                             await this.interpreterService.getActiveInterpreter(workspace.uri),
                         );
                     } else {
@@ -302,8 +302,8 @@ export class PythonTestController implements ITestController, IExtensionSingleAc
                         }
                         await testAdapter.discoverTests(
                             this.testController,
-                            this.refreshCancellation.token,
                             this.pythonExecFactory,
+                            this.refreshCancellation.token,
                             await this.interpreterService.getActiveInterpreter(workspace.uri),
                         );
                     } else {
@@ -453,9 +453,9 @@ export class PythonTestController implements ITestController, IExtensionSingleAc
                                 this.testController,
                                 runInstance,
                                 testItems,
+                                this.pythonExecFactory,
                                 token,
                                 request.profile?.kind,
-                                this.pythonExecFactory,
                                 this.debugLauncher,
                                 await this.interpreterService.getActiveInterpreter(workspace.uri),
                             );
@@ -470,9 +470,9 @@ export class PythonTestController implements ITestController, IExtensionSingleAc
                                 this.testController,
                                 runInstance,
                                 testItems,
+                                this.pythonExecFactory,
                                 token,
                                 request.profile?.kind,
-                                this.pythonExecFactory,
                                 this.debugLauncher,
                                 await this.interpreterService.getActiveInterpreter(workspace.uri),
                             );
diff --git a/src/client/testing/testController/pytest/pytestDiscoveryAdapter.ts b/src/client/testing/testController/pytest/pytestDiscoveryAdapter.ts
index 04258ddbddf2..308c9ba1f9bc 100644
--- a/src/client/testing/testController/pytest/pytestDiscoveryAdapter.ts
+++ b/src/client/testing/testController/pytest/pytestDiscoveryAdapter.ts
@@ -38,7 +38,7 @@ export class PytestTestDiscoveryAdapter implements ITestDiscoveryAdapter {
 
     async discoverTests(
         uri: Uri,
-        executionFactory?: IPythonExecutionFactory,
+        executionFactory: IPythonExecutionFactory,
         token?: CancellationToken,
         interpreter?: PythonEnvironment,
     ): Promise<void> {
@@ -69,7 +69,7 @@ export class PytestTestDiscoveryAdapter implements ITestDiscoveryAdapter {
         uri: Uri,
         discoveryPipeName: string,
         cSource: CancellationTokenSource,
-        executionFactory?: IPythonExecutionFactory,
+        executionFactory: IPythonExecutionFactory,
         interpreter?: PythonEnvironment,
         token?: CancellationToken,
     ): Promise<void> {
@@ -170,7 +170,7 @@ export class PytestTestDiscoveryAdapter implements ITestDiscoveryAdapter {
             resource: uri,
             interpreter,
         };
-        const execService = await executionFactory?.createActivatedEnvironment(creationOptions);
+        const execService = await executionFactory.createActivatedEnvironment(creationOptions);
 
         const execInfo = await execService?.getExecutablePath();
         traceVerbose(`Executable path for pytest discovery: ${execInfo}.`);
diff --git a/src/client/testing/testController/pytest/pytestExecutionAdapter.ts b/src/client/testing/testController/pytest/pytestExecutionAdapter.ts
index 053c497c56e0..3b2f9f7de33a 100644
--- a/src/client/testing/testController/pytest/pytestExecutionAdapter.ts
+++ b/src/client/testing/testController/pytest/pytestExecutionAdapter.ts
@@ -32,9 +32,9 @@ export class PytestTestExecutionAdapter implements ITestExecutionAdapter {
     async runTests(
         uri: Uri,
         testIds: string[],
-        profileKind?: TestRunProfileKind,
-        runInstance?: TestRun,
-        executionFactory?: IPythonExecutionFactory,
+        profileKind: boolean | TestRunProfileKind | undefined,
+        runInstance: TestRun,
+        executionFactory: IPythonExecutionFactory,
         debugLauncher?: ITestDebugLauncher,
         interpreter?: PythonEnvironment,
     ): Promise<void> {
@@ -49,14 +49,14 @@ export class PytestTestExecutionAdapter implements ITestExecutionAdapter {
             }
         };
         const cSource = new CancellationTokenSource();
-        runInstance?.token.onCancellationRequested(() => cSource.cancel());
+        runInstance.token.onCancellationRequested(() => cSource.cancel());
 
         const name = await utils.startRunResultNamedPipe(
             dataReceivedCallback, // callback to handle data received
             deferredTillServerClose, // deferred to resolve when server closes
             cSource.token, // token to cancel
         );
-        runInstance?.token.onCancellationRequested(() => {
+        runInstance.token.onCancellationRequested(() => {
             traceInfo(`Test run cancelled, resolving 'TillServerClose' deferred for ${uri.fsPath}.`);
         });
 
@@ -82,9 +82,9 @@ export class PytestTestExecutionAdapter implements ITestExecutionAdapter {
         testIds: string[],
         resultNamedPipeName: string,
         serverCancel: CancellationTokenSource,
-        runInstance?: TestRun,
-        profileKind?: TestRunProfileKind,
-        executionFactory?: IPythonExecutionFactory,
+        runInstance: TestRun,
+        profileKind: boolean | TestRunProfileKind | undefined,
+        executionFactory: IPythonExecutionFactory,
         debugLauncher?: ITestDebugLauncher,
         interpreter?: PythonEnvironment,
     ): Promise<ExecutionTestPayload> {
@@ -114,7 +114,7 @@ export class PytestTestExecutionAdapter implements ITestExecutionAdapter {
             interpreter,
         };
         // need to check what will happen in the exec service is NOT defined and is null
-        const execService = await executionFactory?.createActivatedEnvironment(creationOptions);
+        const execService = await executionFactory.createActivatedEnvironment(creationOptions);
 
         const execInfo = await execService?.getExecutablePath();
         traceVerbose(`Executable path for pytest execution: ${execInfo}.`);
@@ -144,14 +144,14 @@ export class PytestTestExecutionAdapter implements ITestExecutionAdapter {
                 cwd,
                 throwOnStdErr: true,
                 env: mutableEnv,
-                token: runInstance?.token,
+                token: runInstance.token,
             };
 
             if (debugBool) {
                 const launchOptions: LaunchOptions = {
                     cwd,
                     args: testArgs,
-                    token: runInstance?.token,
+                    token: runInstance.token,
                     testProvider: PYTEST_PROVIDER,
                     runTestIdsPort: testIdsFileName,
                     pytestPort: resultNamedPipeName,
@@ -181,7 +181,7 @@ export class PytestTestExecutionAdapter implements ITestExecutionAdapter {
                         args: runArgs,
                         env: (mutableEnv as unknown) as { [key: string]: string },
                     });
-                    runInstance?.token.onCancellationRequested(() => {
+                    runInstance.token.onCancellationRequested(() => {
                         traceInfo(`Test run cancelled, killing pytest subprocess for workspace ${uri.fsPath}`);
                         proc.kill();
                         deferredTillExecClose.resolve();
@@ -189,11 +189,11 @@ export class PytestTestExecutionAdapter implements ITestExecutionAdapter {
                     });
                     proc.stdout.on('data', (data) => {
                         const out = utils.fixLogLinesNoTrailing(data.toString());
-                        runInstance?.appendOutput(out);
+                        runInstance.appendOutput(out);
                     });
                     proc.stderr.on('data', (data) => {
                         const out = utils.fixLogLinesNoTrailing(data.toString());
-                        runInstance?.appendOutput(out);
+                        runInstance.appendOutput(out);
                     });
                     proc.onExit((code, signal) => {
                         if (code !== 0) {
@@ -218,7 +218,7 @@ export class PytestTestExecutionAdapter implements ITestExecutionAdapter {
 
                 let resultProc: ChildProcess | undefined;
 
-                runInstance?.token.onCancellationRequested(() => {
+                runInstance.token.onCancellationRequested(() => {
                     traceInfo(`Test run cancelled, killing pytest subprocess for workspace ${uri.fsPath}`);
                     // if the resultProc exists just call kill on it which will handle resolving the ExecClose deferred, otherwise resolve the deferred here.
                     if (resultProc) {
@@ -235,11 +235,11 @@ export class PytestTestExecutionAdapter implements ITestExecutionAdapter {
                 // Displays output to user and ensure the subprocess doesn't run into buffer overflow.
                 result?.proc?.stdout?.on('data', (data) => {
                     const out = utils.fixLogLinesNoTrailing(data.toString());
-                    runInstance?.appendOutput(out);
+                    runInstance.appendOutput(out);
                 });
                 result?.proc?.stderr?.on('data', (data) => {
                     const out = utils.fixLogLinesNoTrailing(data.toString());
-                    runInstance?.appendOutput(out);
+                    runInstance.appendOutput(out);
                 });
                 result?.proc?.on('exit', (code, signal) => {
                     if (code !== 0) {
diff --git a/src/client/testing/testController/unittest/testDiscoveryAdapter.ts b/src/client/testing/testController/unittest/testDiscoveryAdapter.ts
index 23d70568687f..a40e25153fbc 100644
--- a/src/client/testing/testController/unittest/testDiscoveryAdapter.ts
+++ b/src/client/testing/testController/unittest/testDiscoveryAdapter.ts
@@ -38,7 +38,7 @@ export class UnittestTestDiscoveryAdapter implements ITestDiscoveryAdapter {
 
     public async discoverTests(
         uri: Uri,
-        executionFactory?: IPythonExecutionFactory,
+        executionFactory: IPythonExecutionFactory,
         token?: CancellationToken,
     ): Promise<void> {
         const settings = this.configSettings.getSettings(uri);
@@ -89,7 +89,7 @@ export class UnittestTestDiscoveryAdapter implements ITestDiscoveryAdapter {
         testRunPipeName: string,
         cwd: string,
         cSource: CancellationTokenSource,
-        executionFactory?: IPythonExecutionFactory,
+        executionFactory: IPythonExecutionFactory,
     ): Promise<void> {
         // get and edit env vars
         const mutableEnv = {
@@ -157,7 +157,7 @@ export class UnittestTestDiscoveryAdapter implements ITestDiscoveryAdapter {
                 allowEnvironmentFetchExceptions: false,
                 resource: options.workspaceFolder,
             };
-            const execService = await executionFactory?.createActivatedEnvironment(creationOptions);
+            const execService = await executionFactory.createActivatedEnvironment(creationOptions);
             const execInfo = await execService?.getExecutablePath();
             traceVerbose(`Executable path for unittest discovery: ${execInfo}.`);
 
diff --git a/src/client/testing/testController/unittest/testExecutionAdapter.ts b/src/client/testing/testController/unittest/testExecutionAdapter.ts
index 74572ea5c63c..cbc1d2985f84 100644
--- a/src/client/testing/testController/unittest/testExecutionAdapter.ts
+++ b/src/client/testing/testController/unittest/testExecutionAdapter.ts
@@ -42,9 +42,9 @@ export class UnittestTestExecutionAdapter implements ITestExecutionAdapter {
     public async runTests(
         uri: Uri,
         testIds: string[],
-        profileKind?: TestRunProfileKind,
-        runInstance?: TestRun,
-        executionFactory?: IPythonExecutionFactory,
+        profileKind: boolean | TestRunProfileKind | undefined,
+        runInstance: TestRun,
+        executionFactory: IPythonExecutionFactory,
         debugLauncher?: ITestDebugLauncher,
     ): Promise<void> {
         // deferredTillServerClose awaits named pipe server close
@@ -59,13 +59,13 @@ export class UnittestTestExecutionAdapter implements ITestExecutionAdapter {
             }
         };
         const cSource = new CancellationTokenSource();
-        runInstance?.token.onCancellationRequested(() => cSource.cancel());
+        runInstance.token.onCancellationRequested(() => cSource.cancel());
         const name = await utils.startRunResultNamedPipe(
             dataReceivedCallback, // callback to handle data received
             deferredTillServerClose, // deferred to resolve when server closes
             cSource.token, // token to cancel
         );
-        runInstance?.token.onCancellationRequested(() => {
+        runInstance.token.onCancellationRequested(() => {
             console.log(`Test run cancelled, resolving 'till TillAllServerClose' deferred for ${uri.fsPath}.`);
             // if canceled, stop listening for results
             deferredTillServerClose.resolve();
@@ -93,9 +93,9 @@ export class UnittestTestExecutionAdapter implements ITestExecutionAdapter {
         testIds: string[],
         resultNamedPipeName: string,
         serverCancel: CancellationTokenSource,
-        runInstance?: TestRun,
-        profileKind?: TestRunProfileKind,
-        executionFactory?: IPythonExecutionFactory,
+        runInstance: TestRun,
+        profileKind: boolean | TestRunProfileKind | undefined,
+        executionFactory: IPythonExecutionFactory,
         debugLauncher?: ITestDebugLauncher,
     ): Promise<ExecutionTestPayload> {
         const settings = this.configSettings.getSettings(uri);
@@ -119,9 +119,9 @@ export class UnittestTestExecutionAdapter implements ITestExecutionAdapter {
             workspaceFolder: uri,
             command,
             cwd,
-            profileKind,
+            profileKind: typeof profileKind === 'boolean' ? undefined : profileKind,
             testIds,
-            token: runInstance?.token,
+            token: runInstance.token,
         };
         traceLog(`Running UNITTEST execution for the following test ids: ${testIds}`);
 
@@ -145,7 +145,7 @@ export class UnittestTestExecutionAdapter implements ITestExecutionAdapter {
             allowEnvironmentFetchExceptions: false,
             resource: options.workspaceFolder,
         };
-        const execService = await executionFactory?.createActivatedEnvironment(creationOptions);
+        const execService = await executionFactory.createActivatedEnvironment(creationOptions);
 
         const execInfo = await execService?.getExecutablePath();
         traceVerbose(`Executable path for unittest execution: ${execInfo}.`);
@@ -193,7 +193,7 @@ export class UnittestTestExecutionAdapter implements ITestExecutionAdapter {
                         args,
                         env: (mutableEnv as unknown) as { [key: string]: string },
                     });
-                    runInstance?.token.onCancellationRequested(() => {
+                    runInstance.token.onCancellationRequested(() => {
                         traceInfo(`Test run cancelled, killing unittest subprocess for workspace ${uri.fsPath}`);
                         proc.kill();
                         deferredTillExecClose.resolve();
@@ -201,11 +201,11 @@ export class UnittestTestExecutionAdapter implements ITestExecutionAdapter {
                     });
                     proc.stdout.on('data', (data) => {
                         const out = utils.fixLogLinesNoTrailing(data.toString());
-                        runInstance?.appendOutput(out);
+                        runInstance.appendOutput(out);
                     });
                     proc.stderr.on('data', (data) => {
                         const out = utils.fixLogLinesNoTrailing(data.toString());
-                        runInstance?.appendOutput(out);
+                        runInstance.appendOutput(out);
                     });
                     proc.onExit((code, signal) => {
                         if (code !== 0) {
@@ -228,7 +228,7 @@ export class UnittestTestExecutionAdapter implements ITestExecutionAdapter {
 
                 let resultProc: ChildProcess | undefined;
 
-                runInstance?.token.onCancellationRequested(() => {
+                runInstance.token.onCancellationRequested(() => {
                     traceInfo(`Test run cancelled, killing unittest subprocess for workspace ${cwd}.`);
                     // if the resultProc exists just call kill on it which will handle resolving the ExecClose deferred, otherwise resolve the deferred here.
                     if (resultProc) {
@@ -246,11 +246,11 @@ export class UnittestTestExecutionAdapter implements ITestExecutionAdapter {
 
                 result?.proc?.stdout?.on('data', (data) => {
                     const out = fixLogLinesNoTrailing(data.toString());
-                    runInstance?.appendOutput(`${out}`);
+                    runInstance.appendOutput(`${out}`);
                 });
                 result?.proc?.stderr?.on('data', (data) => {
                     const out = fixLogLinesNoTrailing(data.toString());
-                    runInstance?.appendOutput(`${out}`);
+                    runInstance.appendOutput(`${out}`);
                 });
 
                 result?.proc?.on('exit', (code, signal) => {
diff --git a/src/client/testing/testController/workspaceTestAdapter.ts b/src/client/testing/testController/workspaceTestAdapter.ts
index a73acdaba5f0..75b9489f708e 100644
--- a/src/client/testing/testController/workspaceTestAdapter.ts
+++ b/src/client/testing/testController/workspaceTestAdapter.ts
@@ -42,9 +42,9 @@ export class WorkspaceTestAdapter {
         testController: TestController,
         runInstance: TestRun,
         includes: TestItem[],
+        executionFactory: IPythonExecutionFactory,
         token?: CancellationToken,
         profileKind?: boolean | TestRunProfileKind,
-        executionFactory?: IPythonExecutionFactory,
         debugLauncher?: ITestDebugLauncher,
         interpreter?: PythonEnvironment,
     ): Promise<void> {
@@ -73,20 +73,18 @@ export class WorkspaceTestAdapter {
                 }
             });
             const testCaseIds = Array.from(testCaseIdsSet);
-            // ** execution factory only defined for new rewrite way
-            if (executionFactory !== undefined) {
-                await this.executionAdapter.runTests(
-                    this.workspaceUri,
-                    testCaseIds,
-                    profileKind,
-                    runInstance,
-                    executionFactory,
-                    debugLauncher,
-                    interpreter,
-                );
-            } else {
-                await this.executionAdapter.runTests(this.workspaceUri, testCaseIds, profileKind);
+            if (executionFactory === undefined) {
+                throw new Error('Execution factory is required for test execution');
             }
+            await this.executionAdapter.runTests(
+                this.workspaceUri,
+                testCaseIds,
+                profileKind,
+                runInstance,
+                executionFactory,
+                debugLauncher,
+                interpreter,
+            );
             deferred.resolve();
         } catch (ex) {
             // handle token and telemetry here
@@ -116,8 +114,8 @@ export class WorkspaceTestAdapter {
 
     public async discoverTests(
         testController: TestController,
+        executionFactory: IPythonExecutionFactory,
         token?: CancellationToken,
-        executionFactory?: IPythonExecutionFactory,
         interpreter?: PythonEnvironment,
     ): Promise<void> {
         sendTelemetryEvent(EventName.UNITTEST_DISCOVERING, undefined, { tool: this.testProvider });
@@ -132,12 +130,10 @@ export class WorkspaceTestAdapter {
         this.discovering = deferred;
 
         try {
-            // ** execution factory only defined for new rewrite way
-            if (executionFactory !== undefined) {
-                await this.discoveryAdapter.discoverTests(this.workspaceUri, executionFactory, token, interpreter);
-            } else {
-                await this.discoveryAdapter.discoverTests(this.workspaceUri);
+            if (executionFactory === undefined) {
+                throw new Error('Execution factory is required for test discovery');
             }
+            await this.discoveryAdapter.discoverTests(this.workspaceUri, executionFactory, token, interpreter);
             deferred.resolve();
         } catch (ex) {
             sendTelemetryEvent(EventName.UNITTEST_DISCOVERY_DONE, undefined, { tool: this.testProvider, failed: true });
diff --git a/src/test/testing/testController/workspaceTestAdapter.unit.test.ts b/src/test/testing/testController/workspaceTestAdapter.unit.test.ts
index aac07793ca66..6d2895ca2979 100644
--- a/src/test/testing/testController/workspaceTestAdapter.unit.test.ts
+++ b/src/test/testing/testController/workspaceTestAdapter.unit.test.ts
@@ -147,7 +147,7 @@ suite('Workspace test adapter', () => {
             const testProvider = 'unittest';
 
             execFactory = typemoq.Mock.ofType<IPythonExecutionFactory>();
-            await workspaceTestAdapter.discoverTests(testController, undefined, execFactory.object);
+            await workspaceTestAdapter.discoverTests(testController, execFactory.object);
 
             sinon.assert.calledWithMatch(createErrorTestItemStub, sinon.match.any, sinon.match.any);
             sinon.assert.calledWithMatch(buildErrorNodeOptionsStub, uriFoo, sinon.match.any, testProvider);
@@ -166,7 +166,7 @@ suite('Workspace test adapter', () => {
                 stubResultResolver,
             );
 
-            await workspaceTestAdapter.discoverTests(testController, undefined, execFactory.object);
+            await workspaceTestAdapter.discoverTests(testController, execFactory.object);
 
             sinon.assert.calledOnce(discoverTestsStub);
         });
@@ -193,8 +193,8 @@ suite('Workspace test adapter', () => {
             );
 
             // Try running discovery twice
-            const one = workspaceTestAdapter.discoverTests(testController);
-            const two = workspaceTestAdapter.discoverTests(testController);
+            const one = workspaceTestAdapter.discoverTests(testController, execFactory.object);
+            const two = workspaceTestAdapter.discoverTests(testController, execFactory.object);
 
             Promise.all([one, two]);
 
@@ -215,7 +215,7 @@ suite('Workspace test adapter', () => {
                 stubResultResolver,
             );
 
-            await workspaceTestAdapter.discoverTests(testController, undefined, execFactory.object);
+            await workspaceTestAdapter.discoverTests(testController, execFactory.object);
 
             sinon.assert.calledWith(sendTelemetryStub, EventName.UNITTEST_DISCOVERY_DONE);
             assert.strictEqual(telemetryEvent.length, 2);
@@ -238,7 +238,7 @@ suite('Workspace test adapter', () => {
                 stubResultResolver,
             );
 
-            await workspaceTestAdapter.discoverTests(testController);
+            await workspaceTestAdapter.discoverTests(testController, execFactory.object);
 
             sinon.assert.calledWith(sendTelemetryStub, EventName.UNITTEST_DISCOVERY_DONE);
             assert.strictEqual(telemetryEvent.length, 2);
@@ -256,6 +256,7 @@ suite('Workspace test adapter', () => {
         let testControllerMock: typemoq.IMock<TestController>;
         let telemetryEvent: { eventName: EventName; properties: Record<string, unknown> }[] = [];
         let resultResolver: ResultResolver.PythonResultResolver;
+        let execFactory: typemoq.IMock<IPythonExecutionFactory>;
 
         // Stubbed test controller (see comment around L.40)
         let testController: TestController;
@@ -328,6 +329,7 @@ suite('Workspace test adapter', () => {
 
             executionTestsStub = sandbox.stub(UnittestTestExecutionAdapter.prototype, 'runTests');
             sendTelemetryStub = sandbox.stub(Telemetry, 'sendTelemetryEvent').callsFake(mockSendTelemetryEvent);
+            execFactory = typemoq.Mock.ofType<IPythonExecutionFactory>();
             runInstance = typemoq.Mock.ofType<TestRun>();
 
             const testProvider = 'pytest';
@@ -384,7 +386,12 @@ suite('Workspace test adapter', () => {
             testControllerMock = typemoq.Mock.ofType<TestController>();
             testControllerMock.setup((t) => t.items).returns(() => testItemCollectionMock.object);
 
-            await workspaceTestAdapter.executeTests(testController, runInstance.object, [mockTestItem1, mockTestItem2]);
+            await workspaceTestAdapter.executeTests(
+                testController,
+                runInstance.object,
+                [mockTestItem1, mockTestItem2],
+                execFactory.object,
+            );
 
             runInstance.verify((r) => r.started(typemoq.It.isAny()), typemoq.Times.exactly(2));
         });
@@ -400,7 +407,7 @@ suite('Workspace test adapter', () => {
                 stubResultResolver,
             );
 
-            await workspaceTestAdapter.executeTests(testController, runInstance.object, []);
+            await workspaceTestAdapter.executeTests(testController, runInstance.object, [], execFactory.object);
 
             sinon.assert.calledOnce(executionTestsStub);
         });
@@ -427,8 +434,8 @@ suite('Workspace test adapter', () => {
             );
 
             // Try running discovery twice
-            const one = workspaceTestAdapter.executeTests(testController, runInstance.object, []);
-            const two = workspaceTestAdapter.executeTests(testController, runInstance.object, []);
+            const one = workspaceTestAdapter.executeTests(testController, runInstance.object, [], execFactory.object);
+            const two = workspaceTestAdapter.executeTests(testController, runInstance.object, [], execFactory.object);
 
             Promise.all([one, two]);
 
@@ -467,7 +474,7 @@ suite('Workspace test adapter', () => {
             const buildErrorNodeOptionsStub = sinon.stub(util, 'buildErrorNodeOptions').returns(errorTestItemOptions);
             const testProvider = 'unittest';
 
-            await workspaceTestAdapter.executeTests(testController, runInstance.object, []);
+            await workspaceTestAdapter.executeTests(testController, runInstance.object, [], execFactory.object);
 
             sinon.assert.calledWithMatch(createErrorTestItemStub, sinon.match.any, sinon.match.any);
             sinon.assert.calledWithMatch(buildErrorNodeOptionsStub, Uri.parse('foo'), sinon.match.any, testProvider);
@@ -487,7 +494,7 @@ suite('Workspace test adapter', () => {
                 stubResultResolver,
             );
 
-            await workspaceTestAdapter.executeTests(testController, runInstance.object, []);
+            await workspaceTestAdapter.executeTests(testController, runInstance.object, [], execFactory.object);
 
             sinon.assert.calledWith(sendTelemetryStub, EventName.UNITTEST_RUN_ALL_FAILED);
             assert.strictEqual(telemetryEvent.length, 1);

From 56d3615a70be949bb202679cf8d8da5de0101751 Mon Sep 17 00:00:00 2001
From: Itai Hay <3392524+itaihay@users.noreply.github.com>
Date: Mon, 10 Nov 2025 20:44:24 +0200
Subject: [PATCH 080/178] Move pytest test IDs file deletion to finally block
 (#25540)

If the vscode-pytest execution is wrapped and re-triggered then the
deletion of the file causes the second run the fail. Deleting the file
on the finally block ensures that the pytest execution will work even if
re-run.

- Move the deletion of the test IDs temp file from before pytest
execution to a finally block.
- This ensures the temp file is always cleaned up, even if pytest
execution fails or an exception occurs.
- Move ids_path initialization outside the try block so it's accessible
in the finally block for cleanup.

context: https://github.com/microsoft/vscode-python/issues/15669
https://github.com/microsoft/vscode-python/issues/24406#issuecomment-3478348972

Co-authored-by: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
---
 python_files/vscode_pytest/run_pytest_script.py | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/python_files/vscode_pytest/run_pytest_script.py b/python_files/vscode_pytest/run_pytest_script.py
index c0f5114b375c..8d30ba7e4399 100644
--- a/python_files/vscode_pytest/run_pytest_script.py
+++ b/python_files/vscode_pytest/run_pytest_script.py
@@ -51,20 +51,22 @@ def run_pytest(args):
 
     run_test_ids_pipe = os.environ.get("RUN_TEST_IDS_PIPE")
     if run_test_ids_pipe:
+        ids_path = pathlib.Path(run_test_ids_pipe)
         try:
-            # Read the test ids from the file, delete file, and run pytest.
-            ids_path = pathlib.Path(run_test_ids_pipe)
+            # Read the test ids from the file and run pytest.
             ids = ids_path.read_text(encoding="utf-8").splitlines()
-            try:
-                ids_path.unlink()
-            except Exception as e:
-                print("Error[vscode-pytest]: unable to delete temp file" + str(e))
             arg_array = ["-p", "vscode_pytest", *args, *ids]
             print("Running pytest with args: " + str(arg_array))
             pytest.main(arg_array)
         except Exception as e:
             print("Error[vscode-pytest]: unable to read testIds from temp file" + str(e))
             run_pytest(args)
+        finally:
+            # Delete the test ids temp file.
+            try:
+                ids_path.unlink()
+            except Exception as e:
+                print("Error[vscode-pytest]: unable to delete temp file" + str(e))
     else:
         print("Error[vscode-pytest]: RUN_TEST_IDS_PIPE env var is not set.")
         run_pytest(args)

From 2b564e82a7b9e08761714ac103b145bcebc76e35 Mon Sep 17 00:00:00 2001
From: Dhanika Botejue <156615547+Dhanika-Botejue@users.noreply.github.com>
Date: Mon, 10 Nov 2025 14:38:32 -0500
Subject: [PATCH 081/178] docs: add periods to feature descriptions for
 consistency (#25562)

- Add terminal periods to all items in 'Feature details' section

- Fix punctuation inconsistency where 'Refactoring' required a period
but others had none

- Maintains all existing content and formatting
---
 README.md | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/README.md b/README.md
index ffc73d3232ed..6a9af73ec708 100644
--- a/README.md
+++ b/README.md
@@ -90,13 +90,13 @@ To see all available Python commands, open the Command Palette and type `Python`
 
 Learn more about the rich features of the Python extension:
 
--   [IntelliSense](https://code.visualstudio.com/docs/python/editing#_autocomplete-and-intellisense): Edit your code with auto-completion, code navigation, syntax checking and more
--   [Linting](https://code.visualstudio.com/docs/python/linting): Get additional code analysis with Pylint, Flake8 and more
--   [Code formatting](https://code.visualstudio.com/docs/python/formatting): Format your code with black, autopep or yapf
--   [Debugging](https://code.visualstudio.com/docs/python/debugging): Debug your Python scripts, web apps, remote or multi-threaded processes
+-   [IntelliSense](https://code.visualstudio.com/docs/python/editing#_autocomplete-and-intellisense): Edit your code with auto-completion, code navigation, syntax checking and more.
+-   [Linting](https://code.visualstudio.com/docs/python/linting): Get additional code analysis with Pylint, Flake8 and more.
+-   [Code formatting](https://code.visualstudio.com/docs/python/formatting): Format your code with black, autopep or yapf.
+-   [Debugging](https://code.visualstudio.com/docs/python/debugging): Debug your Python scripts, web apps, remote or multi-threaded processes.
 -   [Testing](https://code.visualstudio.com/docs/python/unit-testing): Run and debug tests through the Test Explorer with unittest or pytest.
--   [Jupyter Notebooks](https://code.visualstudio.com/docs/python/jupyter-support): Create and edit Jupyter Notebooks, add and run code cells, render plots, visualize variables through the variable explorer, visualize dataframes with the data viewer, and more
--   [Environments](https://code.visualstudio.com/docs/python/environments): Automatically activate and switch between virtualenv, venv, pipenv, conda and pyenv environments
+-   [Jupyter Notebooks](https://code.visualstudio.com/docs/python/jupyter-support): Create and edit Jupyter Notebooks, add and run code cells, render plots, visualize variables through the variable explorer, visualize dataframes with the data viewer, and more.
+-   [Environments](https://code.visualstudio.com/docs/python/environments): Automatically activate and switch between virtualenv, venv, pipenv, conda and pyenv environments.
 -   [Refactoring](https://code.visualstudio.com/docs/python/editing#_refactoring): Restructure your Python code with variable extraction and method extraction. Additionally, there is componentized support to enable additional refactoring, such as import sorting, through extensions including [isort](https://marketplace.visualstudio.com/items?itemName=ms-python.isort) and [Ruff](https://marketplace.visualstudio.com/items?itemName=charliermarsh.ruff).
 
 

From 0f5e1672f72678209a615035b659b11da0d47e7f Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Mon, 10 Nov 2025 11:38:46 -0800
Subject: [PATCH 082/178] separate out linked file check (#25573)

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 .github/actions/build-vsix/action.yml |  2 +-
 .github/workflows/pr-file-check.yml   | 14 ------------
 .github/workflows/pr-issue-check.yml  | 31 +++++++++++++++++++++++++++
 3 files changed, 32 insertions(+), 15 deletions(-)
 create mode 100644 .github/workflows/pr-issue-check.yml

diff --git a/.github/actions/build-vsix/action.yml b/.github/actions/build-vsix/action.yml
index bfe90fc940e8..6723dcab8fba 100644
--- a/.github/actions/build-vsix/action.yml
+++ b/.github/actions/build-vsix/action.yml
@@ -93,7 +93,7 @@ runs:
         VSIX_NAME: ${{ inputs.vsix_name }}
 
     - name: Upload VSIX
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@v5
       with:
         name: ${{ inputs.artifact_name }}
         path: ${{ inputs.vsix_name }}
diff --git a/.github/workflows/pr-file-check.yml b/.github/workflows/pr-file-check.yml
index da5d6fa8f696..6364e5fa744e 100644
--- a/.github/workflows/pr-file-check.yml
+++ b/.github/workflows/pr-file-check.yml
@@ -42,17 +42,3 @@ jobs:
             .github/test_plan.md
           skip-label: 'skip tests'
           failure-message: 'TypeScript code was edited without also editing a ${file-pattern} file; see the Testing page in our wiki on testing guidelines (the ${skip-label} label can be used to pass this check)'
-
-      - name: 'Ensure PR has an associated issue'
-        uses: actions/github-script@v8
-        with:
-          script: |
-            const labels = context.payload.pull_request.labels.map(label => label.name);
-            if (!labels.includes('skip-issue-check')) {
-              const prBody = context.payload.pull_request.body || '';
-              const issueLink = prBody.match(/https:\/\/github\.com\/\S+\/issues\/\d+/);
-              const issueReference = prBody.match(/#\d+/);
-              if (!issueLink && !issueReference) {
-                core.setFailed('No associated issue found in the PR description.');
-              }
-            }
diff --git a/.github/workflows/pr-issue-check.yml b/.github/workflows/pr-issue-check.yml
new file mode 100644
index 000000000000..25ac91bbd279
--- /dev/null
+++ b/.github/workflows/pr-issue-check.yml
@@ -0,0 +1,31 @@
+name: PR issue check
+
+on:
+  pull_request:
+    types:
+      - 'opened'
+      - 'reopened'
+      - 'synchronize'
+      - 'labeled'
+      - 'unlabeled'
+
+permissions: {}
+
+jobs:
+  check-for-attached-issue:
+    name: 'Check for attached issue'
+    runs-on: ubuntu-latest
+    steps:
+      - name: 'Ensure PR has an associated issue'
+        uses: actions/github-script@v8
+        with:
+          script: |
+            const labels = context.payload.pull_request.labels.map(label => label.name);
+            if (!labels.includes('skip-issue-check')) {
+              const prBody = context.payload.pull_request.body || '';
+              const issueLink = prBody.match(/https:\/\/github\.com\/\S+\/issues\/\d+/);
+              const issueReference = prBody.match(/#\d+/);
+              if (!issueLink && !issueReference) {
+                core.setFailed('No associated issue found in the PR description.');
+              }
+            }

From 6edf3145c9cd563be89b61f32b5ce68c8958c70c Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Mon, 10 Nov 2025 13:00:01 -0800
Subject: [PATCH 083/178] Bump 2025.19 dev (#25575)

---
 package-lock.json | 4 ++--
 package.json      | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index d6391e017d88..9ee1d8242e15 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "python",
-    "version": "2025.17.0-dev",
+    "version": "2025.19.0-dev",
     "lockfileVersion": 2,
     "requires": true,
     "packages": {
         "": {
             "name": "python",
-            "version": "2025.17.0-dev",
+            "version": "2025.19.0-dev",
             "license": "MIT",
             "dependencies": {
                 "@iarna/toml": "^2.2.5",
diff --git a/package.json b/package.json
index f54d359963a4..f7ba93bfe4dd 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
     "name": "python",
     "displayName": "Python",
     "description": "Python language support with extension access points for IntelliSense (Pylance), Debugging (Python Debugger), linting, formatting, refactoring, unit tests, and more.",
-    "version": "2025.17.0-dev",
+    "version": "2025.19.0-dev",
     "featureFlags": {
         "usingNewInterpreterStorage": true
     },

From 1e1b2c17cc4f0ac6df5aac439adce934e5d6bbd2 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 10 Nov 2025 13:14:30 -0800
Subject: [PATCH 084/178] Bump actions/upload-artifact from 4 to 5 (#25549)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps
[actions/upload-artifact](https://github.com/actions/upload-artifact)
from 4 to 5.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/actions/upload-artifact/releases">actions/upload-artifact's
releases</a>.</em></p>
<blockquote>
<h2>v5.0.0</h2>
<h2>What's Changed</h2>
<p><strong>BREAKING CHANGE:</strong> this update supports Node
<code>v24.x</code>. This is not a breaking change per-se but we're
treating it as such.</p>
<ul>
<li>Update README.md by <a
href="https://github.com/GhadimiR"><code>@​GhadimiR</code></a> in <a
href="https://redirect.github.com/actions/upload-artifact/pull/681">actions/upload-artifact#681</a></li>
<li>Update README.md by <a
href="https://github.com/nebuk89"><code>@​nebuk89</code></a> in <a
href="https://redirect.github.com/actions/upload-artifact/pull/712">actions/upload-artifact#712</a></li>
<li>Readme: spell out the first use of GHES by <a
href="https://github.com/danwkennedy"><code>@​danwkennedy</code></a> in
<a
href="https://redirect.github.com/actions/upload-artifact/pull/727">actions/upload-artifact#727</a></li>
<li>Update GHES guidance to include reference to Node 20 version by <a
href="https://github.com/patrikpolyak"><code>@​patrikpolyak</code></a>
in <a
href="https://redirect.github.com/actions/upload-artifact/pull/725">actions/upload-artifact#725</a></li>
<li>Bump <code>@actions/artifact</code> to <code>v4.0.0</code></li>
<li>Prepare <code>v5.0.0</code> by <a
href="https://github.com/danwkennedy"><code>@​danwkennedy</code></a> in
<a
href="https://redirect.github.com/actions/upload-artifact/pull/734">actions/upload-artifact#734</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/GhadimiR"><code>@​GhadimiR</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/upload-artifact/pull/681">actions/upload-artifact#681</a></li>
<li><a href="https://github.com/nebuk89"><code>@​nebuk89</code></a> made
their first contribution in <a
href="https://redirect.github.com/actions/upload-artifact/pull/712">actions/upload-artifact#712</a></li>
<li><a
href="https://github.com/danwkennedy"><code>@​danwkennedy</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/upload-artifact/pull/727">actions/upload-artifact#727</a></li>
<li><a
href="https://github.com/patrikpolyak"><code>@​patrikpolyak</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/upload-artifact/pull/725">actions/upload-artifact#725</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/upload-artifact/compare/v4...v5.0.0">https://github.com/actions/upload-artifact/compare/v4...v5.0.0</a></p>
<h2>v4.6.2</h2>
<h2>What's Changed</h2>
<ul>
<li>Update to use artifact 2.3.2 package &amp; prepare for new
upload-artifact release by <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a
href="https://redirect.github.com/actions/upload-artifact/pull/685">actions/upload-artifact#685</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/upload-artifact/pull/685">actions/upload-artifact#685</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/upload-artifact/compare/v4...v4.6.2">https://github.com/actions/upload-artifact/compare/v4...v4.6.2</a></p>
<h2>v4.6.1</h2>
<h2>What's Changed</h2>
<ul>
<li>Update to use artifact 2.2.2 package by <a
href="https://github.com/yacaovsnc"><code>@​yacaovsnc</code></a> in <a
href="https://redirect.github.com/actions/upload-artifact/pull/673">actions/upload-artifact#673</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/upload-artifact/compare/v4...v4.6.1">https://github.com/actions/upload-artifact/compare/v4...v4.6.1</a></p>
<h2>v4.6.0</h2>
<h2>What's Changed</h2>
<ul>
<li>Expose env vars to control concurrency and timeout by <a
href="https://github.com/yacaovsnc"><code>@​yacaovsnc</code></a> in <a
href="https://redirect.github.com/actions/upload-artifact/pull/662">actions/upload-artifact#662</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/upload-artifact/compare/v4...v4.6.0">https://github.com/actions/upload-artifact/compare/v4...v4.6.0</a></p>
<h2>v4.5.0</h2>
<h2>What's Changed</h2>
<ul>
<li>fix: deprecated <code>Node.js</code> version in action by <a
href="https://github.com/hamirmahal"><code>@​hamirmahal</code></a> in <a
href="https://redirect.github.com/actions/upload-artifact/pull/578">actions/upload-artifact#578</a></li>
<li>Add new <code>artifact-digest</code> output by <a
href="https://github.com/bdehamer"><code>@​bdehamer</code></a> in <a
href="https://redirect.github.com/actions/upload-artifact/pull/656">actions/upload-artifact#656</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a
href="https://github.com/hamirmahal"><code>@​hamirmahal</code></a> made
their first contribution in <a
href="https://redirect.github.com/actions/upload-artifact/pull/578">actions/upload-artifact#578</a></li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/actions/upload-artifact/commit/330a01c490aca151604b8cf639adc76d48f6c5d4"><code>330a01c</code></a>
Merge pull request <a
href="https://redirect.github.com/actions/upload-artifact/issues/734">#734</a>
from actions/danwkennedy/prepare-5.0.0</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/03f282445299bbefc96171af272a984663b63a26"><code>03f2824</code></a>
Update <code>github.dep.yml</code></li>
<li><a
href="https://github.com/actions/upload-artifact/commit/905a1ecb5915b264cbc519e4eb415b5d82916018"><code>905a1ec</code></a>
Prepare <code>v5.0.0</code></li>
<li><a
href="https://github.com/actions/upload-artifact/commit/2d9f9cdfa99fedaddba68e9b5b5c281eca26cc63"><code>2d9f9cd</code></a>
Merge pull request <a
href="https://redirect.github.com/actions/upload-artifact/issues/725">#725</a>
from patrikpolyak/patch-1</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/9687587dec67f2a8bc69104e183d311c42af6d6f"><code>9687587</code></a>
Merge branch 'main' into patch-1</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/2848b2cda0e5190984587ec6bb1f36730ca78d50"><code>2848b2c</code></a>
Merge pull request <a
href="https://redirect.github.com/actions/upload-artifact/issues/727">#727</a>
from danwkennedy/patch-1</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/9b511775fd9ce8c5710b38eea671f856de0e70a7"><code>9b51177</code></a>
Spell out the first use of GHES</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/cd231ca1eda77976a84805c4194a1954f56b0727"><code>cd231ca</code></a>
Update GHES guidance to include reference to Node 20 version</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/de65e23aa2b7e23d713bb51fbfcb6d502f8667d8"><code>de65e23</code></a>
Merge pull request <a
href="https://redirect.github.com/actions/upload-artifact/issues/712">#712</a>
from actions/nebuk89-patch-1</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/8747d8cd7632611ad6060b528f3e0f654c98869c"><code>8747d8c</code></a>
Update README.md</li>
<li>Additional commits viewable in <a
href="https://github.com/actions/upload-artifact/compare/v4...v5">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
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`@dependabot rebase`.

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<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 .github/workflows/pr-check.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/pr-check.yml b/.github/workflows/pr-check.yml
index 2af03922411c..102258fb2d18 100644
--- a/.github/workflows/pr-check.yml
+++ b/.github/workflows/pr-check.yml
@@ -680,7 +680,7 @@ jobs:
         run: npm run test:cover:report
 
       - name: Upload HTML report
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v5
         with:
           name: ${{ runner.os }}-coverage-report-html
           path: ./coverage

From c4e5dfeb754efc68d52b73de493e8c3c2912a2a8 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 10 Nov 2025 13:32:37 -0800
Subject: [PATCH 085/178] Bump tar-fs from 2.1.3 to 2.1.4 (#25487)

Bumps [tar-fs](https://github.com/mafintosh/tar-fs) from 2.1.3 to 2.1.4.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/mafintosh/tar-fs/commit/f421a235565b6a6d305bdf87e999ebdfae9dd1cc"><code>f421a23</code></a>
2.1.4</li>
<li><a
href="https://github.com/mafintosh/tar-fs/commit/c412fa130e216d4c01392f6fb62c8725c1a4ac8b"><code>c412fa1</code></a>
refactor to same pattern as v3</li>
<li>See full diff in <a
href="https://github.com/mafintosh/tar-fs/compare/v2.1.3...v2.1.4">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=tar-fs&package-manager=npm_and_yarn&previous-version=2.1.3&new-version=2.1.4)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

You can trigger a rebase of this PR by commenting `@dependabot rebase`.

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<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
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Dependabot creating any more for this major version (unless you reopen
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</details>

> **Note**
> Automatic rebases have been disabled on this pull request as it has
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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
---
 package-lock.json | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 9ee1d8242e15..7dfccfecb846 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13137,11 +13137,10 @@
             }
         },
         "node_modules/tar-fs": {
-            "version": "2.1.3",
-            "resolved": "https://registry.npmjs.org/tar-fs/-/tar-fs-2.1.3.tgz",
-            "integrity": "sha512-090nwYJDmlhwFwEW3QQl+vaNnxsO2yVsd45eTKRBzSzu+hlb1w2K9inVq5b0ngXuLVqQ4ApvsUHHnu/zQNkWAg==",
+            "version": "2.1.4",
+            "resolved": "https://registry.npmjs.org/tar-fs/-/tar-fs-2.1.4.tgz",
+            "integrity": "sha512-mDAjwmZdh7LTT6pNleZ05Yt65HC3E+NiQzl672vQG38jIrehtJk/J3mNwIg+vShQPcLF/LV7CMnDW6vjj6sfYQ==",
             "dev": true,
-            "license": "MIT",
             "optional": true,
             "dependencies": {
                 "chownr": "^1.1.1",
@@ -25048,9 +25047,9 @@
             "dev": true
         },
         "tar-fs": {
-            "version": "2.1.3",
-            "resolved": "https://registry.npmjs.org/tar-fs/-/tar-fs-2.1.3.tgz",
-            "integrity": "sha512-090nwYJDmlhwFwEW3QQl+vaNnxsO2yVsd45eTKRBzSzu+hlb1w2K9inVq5b0ngXuLVqQ4ApvsUHHnu/zQNkWAg==",
+            "version": "2.1.4",
+            "resolved": "https://registry.npmjs.org/tar-fs/-/tar-fs-2.1.4.tgz",
+            "integrity": "sha512-mDAjwmZdh7LTT6pNleZ05Yt65HC3E+NiQzl672vQG38jIrehtJk/J3mNwIg+vShQPcLF/LV7CMnDW6vjj6sfYQ==",
             "dev": true,
             "optional": true,
             "requires": {

From 2a41070cc1b8f7d09b6a03eb87e47a34f0d6cfbf Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 10 Nov 2025 13:33:08 -0800
Subject: [PATCH 086/178] Bump peter-evans/find-comment from 3.1.0 to 4.0.0
 (#25499)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps
[peter-evans/find-comment](https://github.com/peter-evans/find-comment)
from 3.1.0 to 4.0.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/peter-evans/find-comment/releases">peter-evans/find-comment's
releases</a>.</em></p>
<blockquote>
<h2>Find Comment v4.0.0</h2>
<p>⚙️ Requires <a
href="https://github.com/actions/runner/releases/tag/v2.327.1">Actions
Runner v2.327.1</a> or later if you are using a self-hosted runner for
Node 24 support.</p>
<h2>What's Changed</h2>
<ul>
<li>build(deps-dev): bump <code>@​types/node</code> from 18.19.28 to
18.19.30 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/301">peter-evans/find-comment#301</a></li>
<li>build(deps-dev): bump <code>@​types/node</code> from 18.19.30 to
18.19.31 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/302">peter-evans/find-comment#302</a></li>
<li>build(deps-dev): bump <code>@​types/node</code> from 18.19.31 to
18.19.33 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/303">peter-evans/find-comment#303</a></li>
<li>build(deps-dev): bump prettier from 3.2.5 to 3.3.0 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/304">peter-evans/find-comment#304</a></li>
<li>build(deps-dev): bump prettier from 3.3.0 to 3.3.1 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/305">peter-evans/find-comment#305</a></li>
<li>build(deps-dev): bump <code>@​types/node</code> from 18.19.33 to
18.19.34 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/306">peter-evans/find-comment#306</a></li>
<li>build(deps-dev): bump prettier from 3.3.1 to 3.3.2 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/307">peter-evans/find-comment#307</a></li>
<li>build(deps-dev): bump braces from 3.0.2 to 3.0.3 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/308">peter-evans/find-comment#308</a></li>
<li>build(deps-dev): bump ws from 7.5.9 to 7.5.10 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/309">peter-evans/find-comment#309</a></li>
<li>build(deps-dev): bump <code>@​types/node</code> from 18.19.34 to
18.19.39 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/310">peter-evans/find-comment#310</a></li>
<li>build(deps-dev): bump prettier from 3.3.2 to 3.3.3 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/311">peter-evans/find-comment#311</a></li>
<li>build(deps-dev): bump eslint-plugin-prettier from 5.1.3 to 5.2.1 by
<a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/312">peter-evans/find-comment#312</a></li>
<li>build(deps-dev): bump <code>@​types/node</code> from 18.19.39 to
18.19.41 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/313">peter-evans/find-comment#313</a></li>
<li>build(deps-dev): bump <code>@​types/node</code> from 18.19.41 to
18.19.42 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/314">peter-evans/find-comment#314</a></li>
<li>build(deps-dev): bump <code>@​types/node</code> from 18.19.42 to
18.19.43 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/315">peter-evans/find-comment#315</a></li>
<li>build(deps-dev): bump <code>@​types/node</code> from 18.19.43 to
18.19.44 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/316">peter-evans/find-comment#316</a></li>
<li>build(deps-dev): bump <code>@​types/node</code> from 18.19.44 to
18.19.45 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/317">peter-evans/find-comment#317</a></li>
<li>build(deps-dev): bump <code>@​types/node</code> from 18.19.45 to
18.19.47 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/318">peter-evans/find-comment#318</a></li>
<li>build(deps): bump peter-evans/create-pull-request from 6 to 7 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/319">peter-evans/find-comment#319</a></li>
<li>build(deps-dev): bump <code>@​types/node</code> from 18.19.47 to
18.19.50 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/320">peter-evans/find-comment#320</a></li>
<li>build(deps-dev): bump eslint from 8.57.0 to 8.57.1 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/321">peter-evans/find-comment#321</a></li>
<li>build(deps-dev): bump <code>@​vercel/ncc</code> from 0.38.1 to
0.38.2 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/322">peter-evans/find-comment#322</a></li>
<li>build(deps-dev): bump <code>@​types/node</code> from 18.19.50 to
18.19.54 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/323">peter-evans/find-comment#323</a></li>
<li>Update distribution by <a
href="https://github.com/actions-bot"><code>@​actions-bot</code></a> in
<a
href="https://redirect.github.com/peter-evans/find-comment/pull/324">peter-evans/find-comment#324</a></li>
<li>build(deps): bump <code>@​actions/core</code> from 1.10.1 to 1.11.1
by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/325">peter-evans/find-comment#325</a></li>
<li>Update distribution by <a
href="https://github.com/actions-bot"><code>@​actions-bot</code></a> in
<a
href="https://redirect.github.com/peter-evans/find-comment/pull/326">peter-evans/find-comment#326</a></li>
<li>build(deps-dev): bump <code>@​types/node</code> from 18.19.54 to
18.19.55 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/327">peter-evans/find-comment#327</a></li>
<li>build(deps-dev): bump <code>@​types/node</code> from 18.19.55 to
18.19.57 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/328">peter-evans/find-comment#328</a></li>
<li>build(deps-dev): bump <code>@​types/node</code> from 18.19.57 to
18.19.59 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/329">peter-evans/find-comment#329</a></li>
<li>build(deps-dev): bump <code>@​types/node</code> from 18.19.59 to
18.19.63 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/330">peter-evans/find-comment#330</a></li>
<li>build(deps-dev): bump <code>@​types/node</code> from 18.19.63 to
18.19.64 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/331">peter-evans/find-comment#331</a></li>
<li>build(deps-dev): bump <code>@​vercel/ncc</code> from 0.38.2 to
0.38.3 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/332">peter-evans/find-comment#332</a></li>
<li>build(deps-dev): bump <code>@​types/node</code> from 18.19.64 to
18.19.65 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/333">peter-evans/find-comment#333</a></li>
<li>build(deps-dev): bump <code>@​types/node</code> from 18.19.65 to
18.19.67 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/334">peter-evans/find-comment#334</a></li>
<li>build(deps-dev): bump prettier from 3.3.3 to 3.4.1 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/335">peter-evans/find-comment#335</a></li>
<li>build(deps-dev): bump prettier from 3.4.1 to 3.4.2 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/336">peter-evans/find-comment#336</a></li>
<li>build(deps-dev): bump <code>@​types/node</code> from 18.19.67 to
18.19.68 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/337">peter-evans/find-comment#337</a></li>
<li>build(deps-dev): bump <code>@​types/node</code> from 18.19.68 to
18.19.69 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/338">peter-evans/find-comment#338</a></li>
<li>build(deps-dev): bump <code>@​types/node</code> from 18.19.69 to
18.19.70 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/339">peter-evans/find-comment#339</a></li>
<li>build(deps-dev): bump eslint-plugin-prettier from 5.2.1 to 5.2.3 by
<a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/340">peter-evans/find-comment#340</a></li>
<li>build(deps-dev): bump <code>@​types/node</code> from 18.19.70 to
18.19.71 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/341">peter-evans/find-comment#341</a></li>
<li>build(deps-dev): bump <code>@​types/node</code> from 18.19.71 to
18.19.74 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/342">peter-evans/find-comment#342</a></li>
<li>build(deps-dev): bump <code>@​types/node</code> from 18.19.74 to
18.19.75 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/343">peter-evans/find-comment#343</a></li>
<li>build(deps-dev): bump prettier from 3.4.2 to 3.5.1 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/344">peter-evans/find-comment#344</a></li>
<li>build(deps-dev): bump <code>@​types/node</code> from 18.19.75 to
18.19.76 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/345">peter-evans/find-comment#345</a></li>
<li>build(deps): bump <code>@​octokit/request-error</code> and
<code>@​actions/github</code> by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/peter-evans/find-comment/pull/346">peter-evans/find-comment#346</a></li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/peter-evans/find-comment/commit/b30e6a3c0ed37e7c023ccd3f1db5c6c0b0c23aad"><code>b30e6a3</code></a>
feat: v4 (<a
href="https://redirect.github.com/peter-evans/find-comment/issues/389">#389</a>)</li>
<li><a
href="https://github.com/peter-evans/find-comment/commit/b4929e71ca41482784c4f845c7067ac87b37ea13"><code>b4929e7</code></a>
build(deps-dev): bump <code>@​types/node</code> from 18.19.124 to
18.19.127 (<a
href="https://redirect.github.com/peter-evans/find-comment/issues/388">#388</a>)</li>
<li><a
href="https://github.com/peter-evans/find-comment/commit/1f47d948b68bb443374bdb9b471ba07c8f56cc55"><code>1f47d94</code></a>
build(deps-dev): bump <code>@​vercel/ncc</code> from 0.38.3 to 0.38.4
(<a
href="https://redirect.github.com/peter-evans/find-comment/issues/387">#387</a>)</li>
<li><a
href="https://github.com/peter-evans/find-comment/commit/a723a15ad60cf9419c01a6b8c9548ddd15e79531"><code>a723a15</code></a>
build(deps): bump actions/setup-node from 4 to 5 (<a
href="https://redirect.github.com/peter-evans/find-comment/issues/386">#386</a>)</li>
<li><a
href="https://github.com/peter-evans/find-comment/commit/8bacb1b93208eb5905c5587b30951a392eb18df0"><code>8bacb1b</code></a>
build(deps-dev): bump <code>@​types/node</code> from 18.19.123 to
18.19.124 (<a
href="https://redirect.github.com/peter-evans/find-comment/issues/385">#385</a>)</li>
<li><a
href="https://github.com/peter-evans/find-comment/commit/048de657d50358ed23c7ac2297a319ada251f4f0"><code>048de65</code></a>
build(deps): bump actions/checkout from 4 to 5 (<a
href="https://redirect.github.com/peter-evans/find-comment/issues/384">#384</a>)</li>
<li><a
href="https://github.com/peter-evans/find-comment/commit/c02750f02d104fe45b3d5d5a951ddf251878c770"><code>c02750f</code></a>
build(deps-dev): bump <code>@​types/node</code> from 18.19.122 to
18.19.123 (<a
href="https://redirect.github.com/peter-evans/find-comment/issues/383">#383</a>)</li>
<li><a
href="https://github.com/peter-evans/find-comment/commit/092c582425a50e7fcdc2734bc8879d28bcc4ae27"><code>092c582</code></a>
build(deps): bump actions/download-artifact from 4 to 5 (<a
href="https://redirect.github.com/peter-evans/find-comment/issues/382">#382</a>)</li>
<li><a
href="https://github.com/peter-evans/find-comment/commit/c115bb0099cf72f71ae983aab8b653ab541bccc4"><code>c115bb0</code></a>
build(deps-dev): bump eslint-plugin-prettier from 5.5.3 to 5.5.4 (<a
href="https://redirect.github.com/peter-evans/find-comment/issues/381">#381</a>)</li>
<li><a
href="https://github.com/peter-evans/find-comment/commit/8d3be5d71090a36b64b16ec89b798e1c7373333d"><code>8d3be5d</code></a>
build(deps-dev): bump <code>@​types/node</code> from 18.19.121 to
18.19.122 (<a
href="https://redirect.github.com/peter-evans/find-comment/issues/380">#380</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/peter-evans/find-comment/compare/3eae4d37986fb5a8592848f6a574fdf654e61f9e...b30e6a3c0ed37e7c023ccd3f1db5c6c0b0c23aad">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=peter-evans/find-comment&package-manager=github_actions&previous-version=3.1.0&new-version=4.0.0)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

You can trigger a rebase of this PR by commenting `@dependabot rebase`.

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You can trigger Dependabot actions by commenting on this PR:
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</details>

> **Note**
> Automatic rebases have been disabled on this pull request as it has
been open for over 30 days.

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
---
 .github/workflows/community-feedback-auto-comment.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/community-feedback-auto-comment.yml b/.github/workflows/community-feedback-auto-comment.yml
index f606148f6e86..2274a6951ff6 100644
--- a/.github/workflows/community-feedback-auto-comment.yml
+++ b/.github/workflows/community-feedback-auto-comment.yml
@@ -12,7 +12,7 @@ jobs:
       issues: write
     steps:
       - name: Check For Existing Comment
-        uses: peter-evans/find-comment@3eae4d37986fb5a8592848f6a574fdf654e61f9e # v3.1.0
+        uses: peter-evans/find-comment@b30e6a3c0ed37e7c023ccd3f1db5c6c0b0c23aad # v4.0.0
         id: finder
         with:
           issue-number: ${{ github.event.issue.number }}

From 4af0af5814ad75a87ef69ab7445844fc8306f6ff Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Mon, 10 Nov 2025 15:17:24 -0800
Subject: [PATCH 087/178] Add telemetry for Python Environments extension use
 on activation (#25578)

---
 src/client/startupTelemetry.ts | 2 ++
 src/client/telemetry/index.ts  | 4 ++++
 2 files changed, 6 insertions(+)

diff --git a/src/client/startupTelemetry.ts b/src/client/startupTelemetry.ts
index 5a2c12e2dd37..f7a2a6aea517 100644
--- a/src/client/startupTelemetry.ts
+++ b/src/client/startupTelemetry.ts
@@ -136,6 +136,7 @@ async function getActivationTelemetryProps(
     const usingGlobalInterpreter = interpreter
         ? isUsingGlobalInterpreterInWorkspace(interpreter.path, serviceContainer)
         : false;
+    const usingEnvironmentsExtension = useEnvExtension();
 
     return {
         condaVersion,
@@ -148,5 +149,6 @@ async function getActivationTelemetryProps(
         usingGlobalInterpreter,
         appName,
         isFirstSession,
+        usingEnvironmentsExtension,
     };
 }
diff --git a/src/client/telemetry/index.ts b/src/client/telemetry/index.ts
index 581fcfed1f63..738c5f8a2776 100644
--- a/src/client/telemetry/index.ts
+++ b/src/client/telemetry/index.ts
@@ -404,6 +404,10 @@ export interface IEventNamePropertyMapping {
          * to approximately guess if it's the first session.
          */
         isFirstSession?: boolean;
+        /**
+         * If user has enabled the Python Environments extension integration
+         */
+        usingEnvironmentsExtension?: boolean;
     };
     /**
      * Telemetry event sent when substituting Environment variables to calculate value of variables

From 2d28f7102ccbaa9e92b6fe13753324219413be6c Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 10 Nov 2025 15:20:58 -0800
Subject: [PATCH 088/178] Bump tomli from 2.2.1 to 2.3.0 (#25515)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps [tomli](https://github.com/hukkin/tomli) from 2.2.1 to 2.3.0.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/hukkin/tomli/blob/master/CHANGELOG.md">tomli's
changelog</a>.</em></p>
<blockquote>
<h2>2.3.0</h2>
<ul>
<li>Added
<ul>
<li>Binary wheels for Python 3.14 (also free-threaded)</li>
</ul>
</li>
<li>Performance
<ul>
<li>Reduced import time</li>
</ul>
</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/hukkin/tomli/commit/3fccd16450d0f1d87c042473d95a07f60955206e"><code>3fccd16</code></a>
Bump version: 2.2.1 → 2.3.0</li>
<li><a
href="https://github.com/hukkin/tomli/commit/65040163ea9b528b2d37a1bb5df886472c310930"><code>6504016</code></a>
Add 2.3.0 changelog</li>
<li><a
href="https://github.com/hukkin/tomli/commit/0bc66fcab1f766fe410ffeebfe9ec1ec646f1681"><code>0bc66fc</code></a>
Remove now off-by-default PyPy from cibuildwheel skip list</li>
<li><a
href="https://github.com/hukkin/tomli/commit/0aa242f3188f4b892e434f1b4d23818fcd978615"><code>0aa242f</code></a>
Update license metadata to appease PEP 639</li>
<li><a
href="https://github.com/hukkin/tomli/commit/a18221eb5c3f4592285f533d48e68432132bc37b"><code>a18221e</code></a>
Bump GitHub CI actions</li>
<li><a
href="https://github.com/hukkin/tomli/commit/6fa4d90aa9bb1693b327c72fd18a6c925d1dd5d7"><code>6fa4d90</code></a>
[pre-commit.ci] pre-commit autoupdate (<a
href="https://redirect.github.com/hukkin/tomli/issues/260">#260</a>)</li>
<li><a
href="https://github.com/hukkin/tomli/commit/b974fa13a96503546e47a895ac123d5c8425bc9a"><code>b974fa1</code></a>
[pre-commit.ci] pre-commit autoupdate (<a
href="https://redirect.github.com/hukkin/tomli/issues/248">#248</a>)</li>
<li><a
href="https://github.com/hukkin/tomli/commit/f574f366d40b2fa0672177f06df4d6dfc4188356"><code>f574f36</code></a>
Update mypy to 1.15 and use <code>--strict</code> mode (<a
href="https://redirect.github.com/hukkin/tomli/issues/257">#257</a>)</li>
<li><a
href="https://github.com/hukkin/tomli/commit/1da01ef78fee9f491f55feb5e2d9fcf24d4977f0"><code>1da01ef</code></a>
Reduce import time by removing <code>typing</code> import (<a
href="https://redirect.github.com/hukkin/tomli/issues/251">#251</a>)</li>
<li><a
href="https://github.com/hukkin/tomli/commit/41881885a360e9f6526badafc1c5b2eec4133393"><code>4188188</code></a>
Reduce import time by removing <code>string</code> and
<code>tomli._types</code> imports</li>
<li>Additional commits viewable in <a
href="https://github.com/hukkin/tomli/compare/2.2.1...2.3.0">compare
view</a></li>
</ul>
</details>
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[![Dependabot compatibility
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You can trigger Dependabot actions by commenting on this PR:
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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: eleanorjboyd <26030610+eleanorjboyd@users.noreply.github.com>
---
 requirements.txt                              | 76 +++++++++++--------
 .../codeExecution/codeExecutionManager.ts     | 10 +--
 2 files changed, 48 insertions(+), 38 deletions(-)

diff --git a/requirements.txt b/requirements.txt
index dddc2ee9691c..1e5f673f43db 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,39 +12,49 @@ packaging==25.0 \
     --hash=sha256:29572ef2b1f17581046b3a2227d5c611fb25ec70ca1ba8554b24b0e69331a484 \
     --hash=sha256:d443872c98d677bf60f6a1f2f8c1cb748e8fe762d2bf9d3148b5599295b0fc4f
     # via -r requirements.in
-tomli==2.2.1 \
-    --hash=sha256:023aa114dd824ade0100497eb2318602af309e5a55595f76b626d6d9f3b7b0a6 \
-    --hash=sha256:02abe224de6ae62c19f090f68da4e27b10af2b93213d36cf44e6e1c5abd19fdd \
-    --hash=sha256:286f0ca2ffeeb5b9bd4fcc8d6c330534323ec51b2f52da063b11c502da16f30c \
-    --hash=sha256:2d0f2fdd22b02c6d81637a3c95f8cd77f995846af7414c5c4b8d0545afa1bc4b \
-    --hash=sha256:33580bccab0338d00994d7f16f4c4ec25b776af3ffaac1ed74e0b3fc95e885a8 \
-    --hash=sha256:400e720fe168c0f8521520190686ef8ef033fb19fc493da09779e592861b78c6 \
-    --hash=sha256:40741994320b232529c802f8bc86da4e1aa9f413db394617b9a256ae0f9a7f77 \
-    --hash=sha256:465af0e0875402f1d226519c9904f37254b3045fc5084697cefb9bdde1ff99ff \
-    --hash=sha256:4a8f6e44de52d5e6c657c9fe83b562f5f4256d8ebbfe4ff922c495620a7f6cea \
-    --hash=sha256:4e340144ad7ae1533cb897d406382b4b6fede8890a03738ff1683af800d54192 \
-    --hash=sha256:678e4fa69e4575eb77d103de3df8a895e1591b48e740211bd1067378c69e8249 \
-    --hash=sha256:6972ca9c9cc9f0acaa56a8ca1ff51e7af152a9f87fb64623e31d5c83700080ee \
-    --hash=sha256:7fc04e92e1d624a4a63c76474610238576942d6b8950a2d7f908a340494e67e4 \
-    --hash=sha256:889f80ef92701b9dbb224e49ec87c645ce5df3fa2cc548664eb8a25e03127a98 \
-    --hash=sha256:8d57ca8095a641b8237d5b079147646153d22552f1c637fd3ba7f4b0b29167a8 \
-    --hash=sha256:8dd28b3e155b80f4d54beb40a441d366adcfe740969820caf156c019fb5c7ec4 \
-    --hash=sha256:9316dc65bed1684c9a98ee68759ceaed29d229e985297003e494aa825ebb0281 \
-    --hash=sha256:a198f10c4d1b1375d7687bc25294306e551bf1abfa4eace6650070a5c1ae2744 \
-    --hash=sha256:a38aa0308e754b0e3c67e344754dff64999ff9b513e691d0e786265c93583c69 \
-    --hash=sha256:a92ef1a44547e894e2a17d24e7557a5e85a9e1d0048b0b5e7541f76c5032cb13 \
-    --hash=sha256:ac065718db92ca818f8d6141b5f66369833d4a80a9d74435a268c52bdfa73140 \
-    --hash=sha256:b82ebccc8c8a36f2094e969560a1b836758481f3dc360ce9a3277c65f374285e \
-    --hash=sha256:c954d2250168d28797dd4e3ac5cf812a406cd5a92674ee4c8f123c889786aa8e \
-    --hash=sha256:cb55c73c5f4408779d0cf3eef9f762b9c9f147a77de7b258bef0a5628adc85cc \
-    --hash=sha256:cd45e1dc79c835ce60f7404ec8119f2eb06d38b1deba146f07ced3bbc44505ff \
-    --hash=sha256:d3f5614314d758649ab2ab3a62d4f2004c825922f9e370b29416484086b264ec \
-    --hash=sha256:d920f33822747519673ee656a4b6ac33e382eca9d331c87770faa3eef562aeb2 \
-    --hash=sha256:db2b95f9de79181805df90bedc5a5ab4c165e6ec3fe99f970d0e302f384ad222 \
-    --hash=sha256:e59e304978767a54663af13c07b3d1af22ddee3bb2fb0618ca1593e4f593a106 \
-    --hash=sha256:e85e99945e688e32d5a35c1ff38ed0b3f41f43fad8df0bdf79f72b2ba7bc5272 \
-    --hash=sha256:ece47d672db52ac607a3d9599a9d48dcb2f2f735c6c2d1f34130085bb12b112a \
-    --hash=sha256:f4039b9cbc3048b2416cc57ab3bda989a6fcf9b36cf8937f01a6e731b64f80d7
+tomli==2.3.0 \
+    --hash=sha256:00b5f5d95bbfc7d12f91ad8c593a1659b6387b43f054104cda404be6bda62456 \
+    --hash=sha256:0a154a9ae14bfcf5d8917a59b51ffd5a3ac1fd149b71b47a3a104ca4edcfa845 \
+    --hash=sha256:0c95ca56fbe89e065c6ead5b593ee64b84a26fca063b5d71a1122bf26e533999 \
+    --hash=sha256:0eea8cc5c5e9f89c9b90c4896a8deefc74f518db5927d0e0e8d4a80953d774d0 \
+    --hash=sha256:1cb4ed918939151a03f33d4242ccd0aa5f11b3547d0cf30f7c74a408a5b99878 \
+    --hash=sha256:4021923f97266babc6ccab9f5068642a0095faa0a51a246a6a02fccbb3514eaf \
+    --hash=sha256:4c2ef0244c75aba9355561272009d934953817c49f47d768070c3c94355c2aa3 \
+    --hash=sha256:4dc4ce8483a5d429ab602f111a93a6ab1ed425eae3122032db7e9acf449451be \
+    --hash=sha256:4f195fe57ecceac95a66a75ac24d9d5fbc98ef0962e09b2eddec5d39375aae52 \
+    --hash=sha256:5192f562738228945d7b13d4930baffda67b69425a7f0da96d360b0a3888136b \
+    --hash=sha256:5e01decd096b1530d97d5d85cb4dff4af2d8347bd35686654a004f8dea20fc67 \
+    --hash=sha256:64be704a875d2a59753d80ee8a533c3fe183e3f06807ff7dc2232938ccb01549 \
+    --hash=sha256:70a251f8d4ba2d9ac2542eecf008b3c8a9fc5c3f9f02c56a9d7952612be2fdba \
+    --hash=sha256:73ee0b47d4dad1c5e996e3cd33b8a76a50167ae5f96a2607cbe8cc773506ab22 \
+    --hash=sha256:74bf8464ff93e413514fefd2be591c3b0b23231a77f901db1eb30d6f712fc42c \
+    --hash=sha256:792262b94d5d0a466afb5bc63c7daa9d75520110971ee269152083270998316f \
+    --hash=sha256:7b0882799624980785240ab732537fcfc372601015c00f7fc367c55308c186f6 \
+    --hash=sha256:883b1c0d6398a6a9d29b508c331fa56adbcdff647f6ace4dfca0f50e90dfd0ba \
+    --hash=sha256:88bd15eb972f3664f5ed4b57c1634a97153b4bac4479dcb6a495f41921eb7f45 \
+    --hash=sha256:8a35dd0e643bb2610f156cca8db95d213a90015c11fee76c946aa62b7ae7e02f \
+    --hash=sha256:940d56ee0410fa17ee1f12b817b37a4d4e4dc4d27340863cc67236c74f582e77 \
+    --hash=sha256:97d5eec30149fd3294270e889b4234023f2c69747e555a27bd708828353ab606 \
+    --hash=sha256:a0e285d2649b78c0d9027570d4da3425bdb49830a6156121360b3f8511ea3441 \
+    --hash=sha256:a1f7f282fe248311650081faafa5f4732bdbfef5d45fe3f2e702fbc6f2d496e0 \
+    --hash=sha256:a4ea38c40145a357d513bffad0ed869f13c1773716cf71ccaa83b0fa0cc4e42f \
+    --hash=sha256:a56212bdcce682e56b0aaf79e869ba5d15a6163f88d5451cbde388d48b13f530 \
+    --hash=sha256:ad805ea85eda330dbad64c7ea7a4556259665bdf9d2672f5dccc740eb9d3ca05 \
+    --hash=sha256:b273fcbd7fc64dc3600c098e39136522650c49bca95df2d11cf3b626422392c8 \
+    --hash=sha256:b5870b50c9db823c595983571d1296a6ff3e1b88f734a4c8f6fc6188397de005 \
+    --hash=sha256:b74a0e59ec5d15127acdabd75ea17726ac4c5178ae51b85bfe39c4f8a278e879 \
+    --hash=sha256:be71c93a63d738597996be9528f4abe628d1adf5e6eb11607bc8fe1a510b5dae \
+    --hash=sha256:c22a8bf253bacc0cf11f35ad9808b6cb75ada2631c2d97c971122583b129afbc \
+    --hash=sha256:c4665508bcbac83a31ff8ab08f424b665200c0e1e645d2bd9ab3d3e557b6185b \
+    --hash=sha256:c5f3ffd1e098dfc032d4d3af5c0ac64f6d286d98bc148698356847b80fa4de1b \
+    --hash=sha256:cebc6fe843e0733ee827a282aca4999b596241195f43b4cc371d64fc6639da9e \
+    --hash=sha256:d1381caf13ab9f300e30dd8feadb3de072aeb86f1d34a8569453ff32a7dea4bf \
+    --hash=sha256:d7d86942e56ded512a594786a5ba0a5e521d02529b3826e7761a05138341a2ac \
+    --hash=sha256:e31d432427dcbf4d86958c184b9bfd1e96b5b71f8eb17e6d02531f434fd335b8 \
+    --hash=sha256:e95b1af3c5b07d9e643909b5abbec77cd9f1217e6d0bca72b0234736b9fb1f1b \
+    --hash=sha256:f85209946d1fe94416debbb88d00eb92ce9cd5266775424ff81bc959e001acaf \
+    --hash=sha256:feb0dacc61170ed7ab602d3d972a58f14ee3ee60494292d384649a3dc38ef463 \
+    --hash=sha256:ff72b71b5d10d22ecb084d345fc26f42b5143c5533db5e2eaba7d2d335358876
     # via -r requirements.in
 typing-extensions==4.15.0 \
     --hash=sha256:0cea48d173cc12fa28ecabc3b837ea3cf6f38c6d1136f85cbaaf598984861466 \
diff --git a/src/client/terminals/codeExecution/codeExecutionManager.ts b/src/client/terminals/codeExecution/codeExecutionManager.ts
index 30e5b7facd2d..48165adcd169 100644
--- a/src/client/terminals/codeExecution/codeExecutionManager.ts
+++ b/src/client/terminals/codeExecution/codeExecutionManager.ts
@@ -131,6 +131,11 @@ export class CodeExecutionManager implements ICodeExecutionManager {
             return;
         }
 
+        const fileAfterSave = await codeExecutionHelper.saveFileIfDirty(fileToExecute);
+        if (fileAfterSave) {
+            fileToExecute = fileAfterSave;
+        }
+
         // Check on setting terminal.executeInFileDir
         const pythonSettings = this.configSettings.getSettings(file);
         let cwd = pythonSettings.terminal.executeInFileDir ? path.dirname(fileToExecute.fsPath) : undefined;
@@ -139,11 +144,6 @@ export class CodeExecutionManager implements ICodeExecutionManager {
         const launchArgs = pythonSettings.terminal.launchArgs;
         const totalArgs = [...launchArgs, fileToExecute.fsPath.fileToCommandArgumentForPythonExt()];
 
-        const fileAfterSave = await codeExecutionHelper.saveFileIfDirty(fileToExecute);
-        if (fileAfterSave) {
-            fileToExecute = fileAfterSave;
-        }
-
         const show = this.shouldTerminalFocusOnStart(fileToExecute);
         let terminal: Terminal | undefined;
         if (dedicated) {

From 040e590334852ddc2183258f0d0c098f9a95f561 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Tue, 11 Nov 2025 08:16:09 -0800
Subject: [PATCH 089/178] Bump github/codeql-action from 3 to 4 (#25511)

---
 .github/workflows/codeql-analysis.yml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 84de97c4dc9a..168ef0a05b3d 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -42,7 +42,7 @@ jobs:
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@v3
+        uses: github/codeql-action/init@v4
         with:
           languages: ${{ matrix.language }}
           # If you wish to specify custom queries, you can do so here or in a config file.
@@ -67,4 +67,4 @@ jobs:
       #   make release
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@v3
+        uses: github/codeql-action/analyze@v4

From e19c6bbedb371107888ecfe14489175286e1b038 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Tue, 11 Nov 2025 09:19:01 -0800
Subject: [PATCH 090/178] Enable proposed API for all launch configurations in
 tests (#25582)

attempted fix for main failing on CI
---
 src/test/standardTest.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/test/standardTest.ts b/src/test/standardTest.ts
index 00eb3d7cf8c4..c3a7968c9c7a 100644
--- a/src/test/standardTest.ts
+++ b/src/test/standardTest.ts
@@ -89,7 +89,7 @@ async function start() {
     console.log('VS Code executable', vscodeExecutablePath);
     const launchArgs = baseLaunchArgs
         .concat([workspacePath])
-        .concat(channel === 'insiders' ? ['--enable-proposed-api'] : [])
+        .concat(['--enable-proposed-api'])
         .concat(['--timeout', '5000']);
     console.log(`Starting vscode ${channel} with args ${launchArgs.join(' ')}`);
     const options: TestOptions = {

From 455a1303cfb7fd6b89772ae8887856e2d344622b Mon Sep 17 00:00:00 2001
From: Luciana Abud <45497113+luabud@users.noreply.github.com>
Date: Tue, 11 Nov 2025 09:40:53 -0800
Subject: [PATCH 091/178] Update setting name (#25464)

---
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 6a9af73ec708..e9dd52a538cd 100644
--- a/README.md
+++ b/README.md
@@ -121,6 +121,6 @@ The Microsoft Python Extension for Visual Studio Code collects usage
 data and sends it to Microsoft to help improve our products and
 services. Read our
 [privacy statement](https://privacy.microsoft.com/privacystatement) to
-learn more. This extension respects the `telemetry.enableTelemetry`
+learn more. This extension respects the `telemetry.telemetryLevel`
 setting which you can learn more about at
 https://code.visualstudio.com/docs/supporting/faq#_how-to-disable-telemetry-reporting.

From 00e529fe798fc744fdcaf53ddb2e089adb7cadea Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Tue, 11 Nov 2025 16:10:46 -0800
Subject: [PATCH 092/178] fix flaky test (#25583)

fix flaky smoke test by setting the setting for useEnvExt to false.
Fixes test runs like this:
https://github.com/microsoft/vscode-python/actions/runs/19273356638/job/55107677667
---
 src/test/smoke/runInTerminal.smoke.test.ts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/test/smoke/runInTerminal.smoke.test.ts b/src/test/smoke/runInTerminal.smoke.test.ts
index bd4c88e44e80..d5ce409f3ab1 100644
--- a/src/test/smoke/runInTerminal.smoke.test.ts
+++ b/src/test/smoke/runInTerminal.smoke.test.ts
@@ -17,8 +17,13 @@ suite('Smoke Test: Run Python File In Terminal', () => {
             return this.skip();
         }
         await initialize();
+        // Ensure the environments extension is not used for this test
+        await vscode.workspace
+            .getConfiguration('python')
+            .update('useEnvironmentsExtension', false, vscode.ConfigurationTarget.Global);
         return undefined;
     });
+
     setup(initializeTest);
     suiteTeardown(closeActiveWindows);
     teardown(closeActiveWindows);

From 9fa6d8d8d0f75680c0f56ad84b05e742962c67fc Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Wed, 12 Nov 2025 00:40:43 +0000
Subject: [PATCH 093/178] Bump actions/setup-node from 4 to 6 in
 /.github/actions/build-vsix (#25580)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps [actions/setup-node](https://github.com/actions/setup-node) from 4
to 6.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/actions/setup-node/releases">actions/setup-node's
releases</a>.</em></p>
<blockquote>
<h2>v6.0.0</h2>
<h2>What's Changed</h2>
<p><strong>Breaking Changes</strong></p>
<ul>
<li>Limit automatic caching to npm, update workflows and documentation
by <a
href="https://github.com/priyagupta108"><code>@​priyagupta108</code></a>
in <a
href="https://redirect.github.com/actions/setup-node/pull/1374">actions/setup-node#1374</a></li>
</ul>
<p><strong>Dependency Upgrades</strong></p>
<ul>
<li>Upgrade ts-jest from 29.1.2 to 29.4.1 and document breaking changes
in v5 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-node/pull/1336">#1336</a></li>
<li>Upgrade prettier from 2.8.8 to 3.6.2 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-node/pull/1334">#1334</a></li>
<li>Upgrade actions/publish-action from 0.3.0 to 0.4.0 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-node/pull/1362">#1362</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/setup-node/compare/v5...v6.0.0">https://github.com/actions/setup-node/compare/v5...v6.0.0</a></p>
<h2>v5.0.0</h2>
<h2>What's Changed</h2>
<h3>Breaking Changes</h3>
<ul>
<li>Enhance caching in setup-node with automatic package manager
detection by <a
href="https://github.com/priya-kinthali"><code>@​priya-kinthali</code></a>
in <a
href="https://redirect.github.com/actions/setup-node/pull/1348">actions/setup-node#1348</a></li>
</ul>
<p>This update, introduces automatic caching when a valid
<code>packageManager</code> field is present in your
<code>package.json</code>. This aims to improve workflow performance and
make dependency management more seamless.
To disable this automatic caching, set <code>package-manager-cache:
false</code></p>
<pre lang="yaml"><code>steps:
- uses: actions/checkout@v5
- uses: actions/setup-node@v5
  with:
    package-manager-cache: false
</code></pre>
<ul>
<li>Upgrade action to use node24 by <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a
href="https://redirect.github.com/actions/setup-node/pull/1325">actions/setup-node#1325</a></li>
</ul>
<p>Make sure your runner is on version v2.327.1 or later to ensure
compatibility with this release. <a
href="https://github.com/actions/runner/releases/tag/v2.327.1">See
Release Notes</a></p>
<h3>Dependency Upgrades</h3>
<ul>
<li>Upgrade <code>@​octokit/request-error</code> and
<code>@​actions/github</code> by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-node/pull/1227">actions/setup-node#1227</a></li>
<li>Upgrade uuid from 9.0.1 to 11.1.0 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-node/pull/1273">actions/setup-node#1273</a></li>
<li>Upgrade undici from 5.28.5 to 5.29.0 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-node/pull/1295">actions/setup-node#1295</a></li>
<li>Upgrade form-data to bring in fix for critical vulnerability by <a
href="https://github.com/gowridurgad"><code>@​gowridurgad</code></a> in
<a
href="https://redirect.github.com/actions/setup-node/pull/1332">actions/setup-node#1332</a></li>
<li>Upgrade actions/checkout from 4 to 5 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/actions/setup-node/pull/1345">actions/setup-node#1345</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a
href="https://github.com/priya-kinthali"><code>@​priya-kinthali</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/setup-node/pull/1348">actions/setup-node#1348</a></li>
<li><a href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a>
made their first contribution in <a
href="https://redirect.github.com/actions/setup-node/pull/1325">actions/setup-node#1325</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/setup-node/compare/v4...v5.0.0">https://github.com/actions/setup-node/compare/v4...v5.0.0</a></p>
<h2>v4.4.0</h2>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/actions/setup-node/commit/2028fbc5c25fe9cf00d9f06a71cc4710d4507903"><code>2028fbc</code></a>
Limit automatic caching to npm, update workflows and documentation (<a
href="https://redirect.github.com/actions/setup-node/issues/1374">#1374</a>)</li>
<li><a
href="https://github.com/actions/setup-node/commit/13427813f706a0f6c9b74603b31103c40ab1c35a"><code>1342781</code></a>
Bump actions/publish-action from 0.3.0 to 0.4.0 (<a
href="https://redirect.github.com/actions/setup-node/issues/1362">#1362</a>)</li>
<li><a
href="https://github.com/actions/setup-node/commit/89d709d423dc495668cd762a18dd4a070611be3f"><code>89d709d</code></a>
Bump prettier from 2.8.8 to 3.6.2 (<a
href="https://redirect.github.com/actions/setup-node/issues/1334">#1334</a>)</li>
<li><a
href="https://github.com/actions/setup-node/commit/cd2651c46231bc0d6f48d6b34433b845331235fe"><code>cd2651c</code></a>
Bump ts-jest from 29.1.2 to 29.4.1 (<a
href="https://redirect.github.com/actions/setup-node/issues/1336">#1336</a>)</li>
<li><a
href="https://github.com/actions/setup-node/commit/a0853c24544627f65ddf259abe73b1d18a591444"><code>a0853c2</code></a>
Bump actions/checkout from 4 to 5 (<a
href="https://redirect.github.com/actions/setup-node/issues/1345">#1345</a>)</li>
<li><a
href="https://github.com/actions/setup-node/commit/b7234cc9fe124f0f4932554b4e5284543083ae7b"><code>b7234cc</code></a>
Upgrade action to use node24 (<a
href="https://redirect.github.com/actions/setup-node/issues/1325">#1325</a>)</li>
<li><a
href="https://github.com/actions/setup-node/commit/d7a11313b581b306c961b506cfc8971208bb03f6"><code>d7a1131</code></a>
Enhance caching in setup-node with automatic package manager detection
(<a
href="https://redirect.github.com/actions/setup-node/issues/1348">#1348</a>)</li>
<li><a
href="https://github.com/actions/setup-node/commit/5e2628c959b9ade56971c0afcebbe5332d44b398"><code>5e2628c</code></a>
Bumps form-data (<a
href="https://redirect.github.com/actions/setup-node/issues/1332">#1332</a>)</li>
<li><a
href="https://github.com/actions/setup-node/commit/65beceff8e91358525397bdce9103d999507ab03"><code>65becef</code></a>
Bump undici from 5.28.5 to 5.29.0 (<a
href="https://redirect.github.com/actions/setup-node/issues/1295">#1295</a>)</li>
<li><a
href="https://github.com/actions/setup-node/commit/7e24a656e1c7a0d6f3eaef8d8e84ae379a5b035b"><code>7e24a65</code></a>
Bump uuid from 9.0.1 to 11.1.0 (<a
href="https://redirect.github.com/actions/setup-node/issues/1273">#1273</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/actions/setup-node/compare/v4...v6">compare
view</a></li>
</ul>
</details>
<br />


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alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
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- `@dependabot merge` will merge this PR after your CI passes on it
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and block automerging
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot close` will close this PR and stop Dependabot recreating
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</details>

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
---
 .github/actions/build-vsix/action.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/actions/build-vsix/action.yml b/.github/actions/build-vsix/action.yml
index 6723dcab8fba..1b665363b34f 100644
--- a/.github/actions/build-vsix/action.yml
+++ b/.github/actions/build-vsix/action.yml
@@ -22,7 +22,7 @@ runs:
   using: 'composite'
   steps:
     - name: Install Node
-      uses: actions/setup-node@v4
+      uses: actions/setup-node@v6
       with:
         node-version: ${{ inputs.node_version }}
         cache: 'npm'

From cf088e884e2ca327968a8ac7e5917f4d7ced7f08 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Tue, 11 Nov 2025 16:49:32 -0800
Subject: [PATCH 094/178] Bump peter-evans/create-or-update-comment from 4.0.0
 to 5.0.0 (#25503)

---
 .github/workflows/community-feedback-auto-comment.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/community-feedback-auto-comment.yml b/.github/workflows/community-feedback-auto-comment.yml
index 2274a6951ff6..27f93400a023 100644
--- a/.github/workflows/community-feedback-auto-comment.yml
+++ b/.github/workflows/community-feedback-auto-comment.yml
@@ -21,7 +21,7 @@ jobs:
 
       - name: Add Community Feedback Comment
         if: steps.finder.outputs.comment-id == ''
-        uses: peter-evans/create-or-update-comment@71345be0265236311c031f5c7866368bd1eff043 # v4.0.0
+        uses: peter-evans/create-or-update-comment@e8674b075228eee787fea43ef493e45ece1004c9 # v5.0.0
         with:
           issue-number: ${{ github.event.issue.number }}
           body: |

From a51b29e708c1dce86d14edde6a1702d40ad0402f Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Tue, 11 Nov 2025 17:06:34 -0800
Subject: [PATCH 095/178] Refactor test processing and folder construction in
 vscode_pytest module (#25478)

---
 .../python-quality-checks.instructions.md     |  76 ++++++
 .vscode/tasks.json                            |  11 +-
 package.json                                  |   3 +
 python_files/vscode_pytest/__init__.py        | 249 ++++++++++++------
 4 files changed, 255 insertions(+), 84 deletions(-)
 create mode 100644 .github/instructions/python-quality-checks.instructions.md

diff --git a/.github/instructions/python-quality-checks.instructions.md b/.github/instructions/python-quality-checks.instructions.md
new file mode 100644
index 000000000000..d07699965cc2
--- /dev/null
+++ b/.github/instructions/python-quality-checks.instructions.md
@@ -0,0 +1,76 @@
+---
+applyTo: 'python_files/**'
+description: Guide for running and fixing Python quality checks (Ruff and Pyright) that run in CI
+---
+
+# Python Quality Checks — Ruff and Pyright
+
+Run the same Python quality checks that run in CI. All checks target `python_files/` and use config from `python_files/pyproject.toml`.
+
+## Commands
+
+```bash
+npm run check-python              # Run both Ruff and Pyright
+npm run check-python:ruff         # Linting and formatting only
+npm run check-python:pyright      # Type checking only
+```
+
+## Fixing Ruff Errors
+
+**Auto-fix most issues:**
+
+```bash
+cd python_files
+python -m ruff check . --fix
+python -m ruff format
+npm run check-python:ruff  # Verify
+```
+
+**Manual fixes:**
+
+-   Ruff shows file, line number, rule code (e.g., `F841`), and description
+-   Open the file, read the error, fix the code
+-   Common: line length (100 char max), import sorting, unused variables
+
+## Fixing Pyright Errors
+
+**Common patterns and fixes:**
+
+-   **Undefined variable/import**: Add the missing import
+-   **Type mismatch**: Correct the type or add type annotations
+-   **Missing return type**: Add `-> ReturnType` to function signatures
+    ```python
+    def my_function() -> str:  # Add return type
+        return "result"
+    ```
+
+**Verify:**
+
+```bash
+npm run check-python:pyright
+```
+
+## Configuration
+
+-   **Ruff**: Line length 100, Python 3.9+, 40+ rule families (flake8, isort, pyupgrade, etc.)
+-   **Pyright**: Version 1.1.308 (or whatever is found in the environment), ignores `lib/` and 15+ legacy files
+-   Config: `python_files/pyproject.toml` sections `[tool.ruff]` and `[tool.pyright]`
+
+## Troubleshooting
+
+**"Module not found" in Pyright**: Install dependencies
+
+```bash
+python -m pip install --upgrade -r build/test-requirements.txt
+nox --session install_python_libs
+```
+
+**Import order errors**: Auto-fix with `ruff check . --fix`
+
+**Type errors in ignored files**: Legacy files in `pyproject.toml` ignore list—fix if working on them
+
+## Learnings
+
+-   Always run `npm run check-python` before pushing to catch CI failures early (1)
+-   Use `ruff check . --fix` to auto-fix most linting issues before manual review (1)
+-   Pyright version must match CI (1.1.308) to avoid inconsistent results between local and CI runs (1)
diff --git a/.vscode/tasks.json b/.vscode/tasks.json
index e1468bdfc2ad..0e33420c11db 100644
--- a/.vscode/tasks.json
+++ b/.vscode/tasks.json
@@ -12,9 +12,7 @@
             "type": "npm",
             "script": "compile",
             "isBackground": true,
-            "problemMatcher": [
-                "$tsc-watch"
-            ],
+            "problemMatcher": ["$tsc-watch"],
             "group": {
                 "kind": "build",
                 "isDefault": true
@@ -34,6 +32,13 @@
             "script": "preTestJediLSP",
             "problemMatcher": [],
             "label": "preTestJediLSP"
+        },
+        {
+            "type": "npm",
+            "script": "check-python",
+            "problemMatcher": ["$python"],
+            "label": "npm: check-python",
+            "detail": "npm run check-python:ruff && npm run check-python:pyright"
         }
     ]
 }
diff --git a/package.json b/package.json
index f7ba93bfe4dd..5d13d01033a8 100644
--- a/package.json
+++ b/package.json
@@ -1695,6 +1695,9 @@
         "lint-fix": "eslint --fix src build pythonExtensionApi gulpfile.js",
         "format-check": "prettier --check 'src/**/*.ts' 'build/**/*.js' '.github/**/*.yml' gulpfile.js",
         "format-fix": "prettier --write 'src/**/*.ts' 'build/**/*.js' '.github/**/*.yml' gulpfile.js",
+        "check-python": "npm run check-python:ruff && npm run check-python:pyright",
+        "check-python:ruff": "cd python_files && python -m pip install -U ruff && python -m ruff check . && python -m ruff format --check",
+        "check-python:pyright": "cd python_files && npx --yes pyright@1.1.308 .",
         "clean": "gulp clean",
         "addExtensionPackDependencies": "gulp addExtensionPackDependencies",
         "updateBuildNumber": "gulp updateBuildNumber",
diff --git a/python_files/vscode_pytest/__init__.py b/python_files/vscode_pytest/__init__.py
index 72eaa7a787d5..0eac4a74f4c3 100644
--- a/python_files/vscode_pytest/__init__.py
+++ b/python_files/vscode_pytest/__init__.py
@@ -10,7 +10,7 @@
 import pathlib
 import sys
 import traceback
-from typing import TYPE_CHECKING, Any, Dict, Generator, Literal, TypedDict
+from typing import TYPE_CHECKING, Any, Dict, Generator, Literal, Protocol, TypedDict, cast
 
 import pytest
 
@@ -25,6 +25,13 @@
     USES_PYTEST_DESCRIBE = True
 
 
+class HasPathOrFspath(Protocol):
+    """Protocol defining objects that have either a path or fspath attribute."""
+
+    path: pathlib.Path | None = None
+    fspath: Any | None = None
+
+
 class TestData(TypedDict):
     """A general class that all test objects inherit from."""
 
@@ -522,11 +529,130 @@ def pytest_sessionfinish(session, exitstatus):
         send_message(payload)
 
 
+def construct_nested_folders(
+    file_nodes_dict: dict[str, TestNode],
+    session_node: TestNode,
+    session_children_dict: dict[str, TestNode],
+) -> dict[str, TestNode]:
+    """Iterate through all files and construct them into nested folders.
+
+    Keyword arguments:
+    file_nodes_dict -- Dictionary of all file nodes
+    session_node -- The session node that will be parent to the folder structure
+    session_children_dict -- Dictionary of session's children nodes indexed by ID
+
+    Returns:
+    dict[str, TestNode] -- Updated session_children_dict with folder nodes added
+    """
+    created_files_folders_dict: dict[str, TestNode] = {}
+    for file_node in file_nodes_dict.values():
+        # Iterate through all the files that exist and construct them into nested folders.
+        root_folder_node: TestNode
+        try:
+            root_folder_node: TestNode = build_nested_folders(
+                file_node, created_files_folders_dict, session_node
+            )
+        except ValueError:
+            # This exception is raised when the session node is not a parent of the file node.
+            print(
+                "[vscode-pytest]: Session path not a parent of test paths, adjusting session node to common parent."
+            )
+            file_path_str: str = str(file_node["path"])
+            session_path_str: str = str(session_node["path"])
+            common_parent = os.path.commonpath([file_path_str, session_path_str])
+            common_parent_path = pathlib.Path(common_parent)
+            print("[vscode-pytest]: Session node now set to: ", common_parent)
+            session_node["path"] = common_parent_path  # pathlib.Path
+            session_node["id_"] = common_parent  # str
+            session_node["name"] = common_parent_path.name  # str
+            root_folder_node = build_nested_folders(
+                file_node, created_files_folders_dict, session_node
+            )
+        # The final folder we get to is the highest folder in the path
+        # and therefore we add this as a child to the session.
+        root_id = root_folder_node.get("id_")
+        if root_id and root_id not in session_children_dict:
+            session_children_dict[root_id] = root_folder_node
+
+    return session_children_dict
+
+
+def process_parameterized_test(
+    test_case: pytest.Item,
+    test_node: TestItem,
+    function_nodes_dict: dict[str, TestNode],
+    file_nodes_dict: dict[str, TestNode],
+) -> TestNode:
+    """Process a parameterized test case and create appropriate function nodes.
+
+    Keyword arguments:
+    test_case -- the parameterized pytest test case; must have callspec attribute
+    test_node -- the test node created from the test case
+    function_nodes_dict -- dictionary of function nodes indexed by ID
+    file_nodes_dict -- dictionary of file nodes indexed by path
+
+    Returns:
+    TestNode -- the node to use for further processing (function node or original test node)
+    """
+    function_name: str = ""
+    # parameterized test cases cut the repetitive part of the name off.
+    parent_part, parameterized_section = test_node["name"].split("[", 1)
+    test_node["name"] = "[" + parameterized_section
+
+    first_split = test_case.nodeid.rsplit(
+        "::", 1
+    )  # splits the parameterized test name from the rest of the nodeid
+    second_split = first_split[0].rsplit(
+        ".py", 1
+    )  # splits the file path from the rest of the nodeid
+
+    class_and_method = second_split[1] + "::"  # This has "::" separator at both ends
+    # construct the parent id, so it is absolute path :: any class and method :: parent_part
+    parent_id = os.fspath(get_node_path(test_case)) + class_and_method + parent_part
+
+    try:
+        function_name = test_case.originalname  # type: ignore
+        function_test_node = function_nodes_dict[parent_id]
+    except AttributeError:  # actual error has occurred
+        ERRORS.append(
+            f"unable to find original name for {test_case.name} with parameterization detected."
+        )
+        raise VSCodePytestError(
+            "Unable to find original name for parameterized test case"
+        ) from None
+    except KeyError:
+        function_test_node: TestNode = create_parameterized_function_node(
+            function_name, get_node_path(test_case), parent_id
+        )
+        function_nodes_dict[parent_id] = function_test_node
+
+    if test_node not in function_test_node["children"]:
+        function_test_node["children"].append(test_node)
+
+    # Check if the parent node of the function is file, if so create/add to this file node.
+    if isinstance(test_case.parent, pytest.File):
+        # calculate the parent path of the test case
+        parent_path = get_node_path(test_case.parent)
+        try:
+            parent_test_case = file_nodes_dict[os.fspath(parent_path)]
+        except KeyError:
+            parent_test_case = create_file_node(parent_path)
+            file_nodes_dict[os.fspath(parent_path)] = parent_test_case
+        if function_test_node not in parent_test_case["children"]:
+            parent_test_case["children"].append(function_test_node)
+
+    # Return the function node as the test node to handle subsequent nesting
+    return function_test_node
+
+
 def build_test_tree(session: pytest.Session) -> TestNode:
     """Builds a tree made up of testing nodes from the pytest session.
 
     Keyword arguments:
-    session -- the pytest session object.
+    session -- the pytest session object that contains test items.
+
+    Returns:
+    TestNode -- The root node of the constructed test tree.
     """
     session_node = create_session_node(session)
     session_children_dict: dict[str, TestNode] = {}
@@ -542,54 +668,10 @@ def build_test_tree(session: pytest.Session) -> TestNode:
     for test_case in session.items:
         test_node = create_test_node(test_case)
         if hasattr(test_case, "callspec"):  # This means it is a parameterized test.
-            function_name: str = ""
-            # parameterized test cases cut the repetitive part of the name off.
-            parent_part, parameterized_section = test_node["name"].split("[", 1)
-            test_node["name"] = "[" + parameterized_section
-
-            first_split = test_case.nodeid.rsplit(
-                "::", 1
-            )  # splits the parameterized test name from the rest of the nodeid
-            second_split = first_split[0].rsplit(
-                ".py", 1
-            )  # splits the file path from the rest of the nodeid
-
-            class_and_method = second_split[1] + "::"  # This has "::" separator at both ends
-            # construct the parent id, so it is absolute path :: any class and method :: parent_part
-            parent_id = os.fspath(get_node_path(test_case)) + class_and_method + parent_part
-            # file, middle, param = test_case.nodeid.rsplit("::", 2)
-            # parent_id = test_case.nodeid.rsplit("::", 1)[0] + "::" + parent_part
-            # parent_path = os.fspath(get_node_path(test_case)) + "::" + parent_part
-            try:
-                function_name = test_case.originalname  # type: ignore
-                function_test_node = function_nodes_dict[parent_id]
-            except AttributeError:  # actual error has occurred
-                ERRORS.append(
-                    f"unable to find original name for {test_case.name} with parameterization detected."
-                )
-                raise VSCodePytestError(
-                    "Unable to find original name for parameterized test case"
-                ) from None
-            except KeyError:
-                function_test_node: TestNode = create_parameterized_function_node(
-                    function_name, get_node_path(test_case), parent_id
-                )
-                function_nodes_dict[parent_id] = function_test_node
-            if test_node not in function_test_node["children"]:
-                function_test_node["children"].append(test_node)
-            # Check if the parent node of the function is file, if so create/add to this file node.
-            if isinstance(test_case.parent, pytest.File):
-                # calculate the parent path of the test case
-                parent_path = get_node_path(test_case.parent)
-                try:
-                    parent_test_case = file_nodes_dict[os.fspath(parent_path)]
-                except KeyError:
-                    parent_test_case = create_file_node(parent_path)
-                    file_nodes_dict[os.fspath(parent_path)] = parent_test_case
-                if function_test_node not in parent_test_case["children"]:
-                    parent_test_case["children"].append(function_test_node)
-            # If the parent is not a file, it is a class, add the function node as the test node to handle subsequent nesting.
-            test_node = function_test_node
+            # Process parameterized test and get the function node to use for further processing
+            test_node = process_parameterized_test(
+                test_case, test_node, function_nodes_dict, file_nodes_dict
+            )
         if isinstance(test_case.parent, pytest.Class) or (
             USES_PYTEST_DESCRIBE and isinstance(test_case.parent, DescribeBlock)
         ):
@@ -629,40 +711,25 @@ def build_test_tree(session: pytest.Session) -> TestNode:
                 test_file_node["children"].append(test_class_node)
         elif not hasattr(test_case, "callspec"):
             # This includes test cases that are pytest functions or a doctests.
-            parent_path = get_node_path(test_case.parent)
+            if test_case.parent is None:
+                ERRORS.append(f"Test case {test_case.name} has no parent")
+                continue
+            parent_path = get_node_path(
+                cast(
+                    "pytest.Session | pytest.Item | pytest.File | pytest.Class | pytest.Module | HasPathOrFspath",
+                    test_case.parent,
+                )
+            )
             try:
                 parent_test_case = file_nodes_dict[os.fspath(parent_path)]
             except KeyError:
                 parent_test_case = create_file_node(parent_path)
                 file_nodes_dict[os.fspath(parent_path)] = parent_test_case
             parent_test_case["children"].append(test_node)
-    created_files_folders_dict: dict[str, TestNode] = {}
-    for file_node in file_nodes_dict.values():
-        # Iterate through all the files that exist and construct them into nested folders.
-        root_folder_node: TestNode
-        try:
-            root_folder_node: TestNode = build_nested_folders(
-                file_node, created_files_folders_dict, session_node
-            )
-        except ValueError:
-            # This exception is raised when the session node is not a parent of the file node.
-            print(
-                "[vscode-pytest]: Session path not a parent of test paths, adjusting session node to common parent."
-            )
-            common_parent = os.path.commonpath([file_node["path"], get_node_path(session)])
-            common_parent_path = pathlib.Path(common_parent)
-            print("[vscode-pytest]: Session node now set to: ", common_parent)
-            session_node["path"] = common_parent_path  # pathlib.Path
-            session_node["id_"] = common_parent  # str
-            session_node["name"] = common_parent_path.name  # str
-            root_folder_node = build_nested_folders(
-                file_node, created_files_folders_dict, session_node
-            )
-        # The final folder we get to is the highest folder in the path
-        # and therefore we add this as a child to the session.
-        root_id = root_folder_node.get("id_")
-        if root_id and root_id not in session_children_dict:
-            session_children_dict[root_id] = root_folder_node
+    # Process all files and construct them into nested folders
+    session_children_dict = construct_nested_folders(
+        file_nodes_dict, session_node, session_children_dict
+    )
     session_node["children"] = list(session_children_dict.values())
     return session_node
 
@@ -851,12 +918,29 @@ class CoveragePayloadDict(Dict):
     error: str | None  # Currently unused need to check
 
 
-def get_node_path(node: Any) -> pathlib.Path:
+def get_node_path(
+    node: pytest.Session
+    | pytest.Item
+    | pytest.File
+    | pytest.Class
+    | pytest.Module
+    | HasPathOrFspath,
+) -> pathlib.Path:
     """A function that returns the path of a node given the switch to pathlib.Path.
 
     It also evaluates if the node is a symlink and returns the equivalent path.
+
+    Parameters:
+        node: A pytest object or any object that has a path or fspath attribute.
+            Do NOT pass a pathlib.Path object directly; use it directly instead.
+
+    Returns:
+        pathlib.Path: The resolved path for the node.
     """
-    node_path = getattr(node, "path", None) or pathlib.Path(node.fspath)
+    node_path = getattr(node, "path", None)
+    if node_path is None:
+        fspath = getattr(node, "fspath", None)
+        node_path = pathlib.Path(fspath) if fspath is not None else None
 
     if not node_path:
         raise VSCodePytestError(
@@ -868,7 +952,10 @@ def get_node_path(node: Any) -> pathlib.Path:
         # Get relative between the cwd (resolved path) and the node path.
         try:
             # Check to see if the node path contains the symlink root already
-            common_path = os.path.commonpath([SYMLINK_PATH, node_path])
+            # Convert Path objects to strings for os.path.commonpath
+            symlink_str: str = str(SYMLINK_PATH)
+            node_path_str: str = str(node_path)
+            common_path = os.path.commonpath([symlink_str, node_path_str])
             if common_path == os.fsdecode(SYMLINK_PATH):
                 # The node path is already relative to the SYMLINK_PATH root therefore return
                 return node_path

From cd5ecb9c2fa69e7aeaf4778e87b4b3c32ab61435 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Wed, 12 Nov 2025 09:54:39 -0800
Subject: [PATCH 096/178] parsing mixed-value toml arrays  (#25585)

Fixes: https://github.com/microsoft/vscode-python/issues/25413

---------

Signed-off-by: JP-Ellis <josh@jpellis.me>
Co-authored-by: JP-Ellis <josh@jpellis.me>
---
 package-lock.json                                 | 15 ++++++++-------
 package.json                                      |  2 +-
 .../creation/pyProjectTomlContext.unit.test.ts    |  2 +-
 3 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 7dfccfecb846..9a85807e6068 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
             "version": "2025.19.0-dev",
             "license": "MIT",
             "dependencies": {
-                "@iarna/toml": "^2.2.5",
+                "@iarna/toml": "^3.0.0",
                 "@vscode/extension-telemetry": "^0.8.4",
                 "arch": "^2.1.0",
                 "fs-extra": "^11.2.0",
@@ -1086,9 +1086,10 @@
             "license": "BSD-3-Clause"
         },
         "node_modules/@iarna/toml": {
-            "version": "2.2.5",
-            "resolved": "https://registry.npmjs.org/@iarna/toml/-/toml-2.2.5.tgz",
-            "integrity": "sha512-trnsAYxU3xnS1gPHPyU961coFyLkh4gAD/0zQ5mymY4yOZ+CYvsPqUbOFSw0aDM4y0tV7tiFxL/1XfXPNC6IPg=="
+            "version": "3.0.0",
+            "resolved": "https://registry.npmjs.org/@iarna/toml/-/toml-3.0.0.tgz",
+            "integrity": "sha512-td6ZUkz2oS3VeleBcN+m//Q6HlCFCPrnI0FZhrt/h4XqLEdOyYp2u21nd8MdsR+WJy5r9PTDaHTDDfhf4H4l6Q==",
+            "license": "ISC"
         },
         "node_modules/@isaacs/cliui": {
             "version": "8.0.2",
@@ -15947,9 +15948,9 @@
             "dev": true
         },
         "@iarna/toml": {
-            "version": "2.2.5",
-            "resolved": "https://registry.npmjs.org/@iarna/toml/-/toml-2.2.5.tgz",
-            "integrity": "sha512-trnsAYxU3xnS1gPHPyU961coFyLkh4gAD/0zQ5mymY4yOZ+CYvsPqUbOFSw0aDM4y0tV7tiFxL/1XfXPNC6IPg=="
+            "version": "3.0.0",
+            "resolved": "https://registry.npmjs.org/@iarna/toml/-/toml-3.0.0.tgz",
+            "integrity": "sha512-td6ZUkz2oS3VeleBcN+m//Q6HlCFCPrnI0FZhrt/h4XqLEdOyYp2u21nd8MdsR+WJy5r9PTDaHTDDfhf4H4l6Q=="
         },
         "@isaacs/cliui": {
             "version": "8.0.2",
diff --git a/package.json b/package.json
index 5d13d01033a8..2d4e67425806 100644
--- a/package.json
+++ b/package.json
@@ -1705,7 +1705,7 @@
         "webpack": "webpack"
     },
     "dependencies": {
-        "@iarna/toml": "^2.2.5",
+        "@iarna/toml": "^3.0.0",
         "@vscode/extension-telemetry": "^0.8.4",
         "arch": "^2.1.0",
         "fs-extra": "^11.2.0",
diff --git a/src/test/pythonEnvironments/creation/pyProjectTomlContext.unit.test.ts b/src/test/pythonEnvironments/creation/pyProjectTomlContext.unit.test.ts
index 8363837a4a36..3e787570304a 100644
--- a/src/test/pythonEnvironments/creation/pyProjectTomlContext.unit.test.ts
+++ b/src/test/pythonEnvironments/creation/pyProjectTomlContext.unit.test.ts
@@ -28,7 +28,7 @@ function getInstallableToml(): typemoq.IMock<TextDocument> {
         .setup((p) => p.getText(typemoq.It.isAny()))
         .returns(
             () =>
-                '[project]\nname = "spam"\nversion = "2020.0.0"\n[build-system]\nrequires = ["setuptools ~= 58.0", "cython ~= 0.29.0"]\n[project.optional-dependencies]\ntest = ["pytest"]\ndoc = ["sphinx", "furo"]',
+                '[project]\nname = "spam"\nversion = "2020.0.0"\n[build-system]\nrequires = ["setuptools ~= 58.0", "cython ~= 0.29.0"]\n[dependency-groups]\ndev = ["ruff", { include-group = "test" }]\ntest = ["pytest"]',
         );
     return pyprojectToml;
 }

From d970068f5ed38511dd856d9da511f39be1d6b455 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Fri, 14 Nov 2025 14:42:43 -0800
Subject: [PATCH 097/178] support extra patching for doctest (#25591)

fixes https://github.com/microsoft/vscode-python/issues/25469
---
 .../python-quality-checks.instructions.md     | 21 ++++++++
 .../.data/doctest_patched_module.py           | 17 +++++++
 .../unittestadapter/.data/doctest_standard.py |  7 +++
 .../.data/test_doctest_patched.py             | 50 +++++++++++++++++++
 .../.data/test_doctest_standard.py            | 16 ++++++
 .../tests/unittestadapter/test_utils.py       | 46 +++++++++++++++++
 python_files/unittestadapter/pvsc_utils.py    | 14 +++---
 7 files changed, 165 insertions(+), 6 deletions(-)
 create mode 100644 python_files/tests/unittestadapter/.data/doctest_patched_module.py
 create mode 100644 python_files/tests/unittestadapter/.data/doctest_standard.py
 create mode 100644 python_files/tests/unittestadapter/.data/test_doctest_patched.py
 create mode 100644 python_files/tests/unittestadapter/.data/test_doctest_standard.py

diff --git a/.github/instructions/python-quality-checks.instructions.md b/.github/instructions/python-quality-checks.instructions.md
index d07699965cc2..48f37529dfbc 100644
--- a/.github/instructions/python-quality-checks.instructions.md
+++ b/.github/instructions/python-quality-checks.instructions.md
@@ -69,8 +69,29 @@ nox --session install_python_libs
 
 **Type errors in ignored files**: Legacy files in `pyproject.toml` ignore list—fix if working on them
 
+## When Writing Tests
+
+**Always format your test files before committing:**
+
+```bash
+cd python_files
+ruff format tests/  # Format all test files
+# or format specific files:
+ruff format tests/unittestadapter/test_utils.py
+```
+
+**Best practice workflow:**
+
+1. Write your test code
+2. Run `ruff format` on the test files
+3. Run the tests to verify they pass
+4. Run `npm run check-python` to catch any remaining issues
+
+This ensures your tests pass both functional checks and quality checks in CI.
+
 ## Learnings
 
 -   Always run `npm run check-python` before pushing to catch CI failures early (1)
 -   Use `ruff check . --fix` to auto-fix most linting issues before manual review (1)
 -   Pyright version must match CI (1.1.308) to avoid inconsistent results between local and CI runs (1)
+-   Always run `ruff format` on test files after writing them to avoid formatting CI failures (1)
diff --git a/python_files/tests/unittestadapter/.data/doctest_patched_module.py b/python_files/tests/unittestadapter/.data/doctest_patched_module.py
new file mode 100644
index 000000000000..636c5320b6d6
--- /dev/null
+++ b/python_files/tests/unittestadapter/.data/doctest_patched_module.py
@@ -0,0 +1,17 @@
+"""
+Patched doctest module.
+This module's doctests will be patched to have proper IDs.
+
+>>> 2 + 2
+4
+"""
+
+
+def example_function():
+    """
+    Example function with doctest.
+
+    >>> example_function()
+    'works'
+    """
+    return "works"
diff --git a/python_files/tests/unittestadapter/.data/doctest_standard.py b/python_files/tests/unittestadapter/.data/doctest_standard.py
new file mode 100644
index 000000000000..52a10aa46a7f
--- /dev/null
+++ b/python_files/tests/unittestadapter/.data/doctest_standard.py
@@ -0,0 +1,7 @@
+"""
+Standard doctest module that should be blocked.
+This has a simple doctest with short ID.
+
+>>> 2 + 2
+4
+"""
diff --git a/python_files/tests/unittestadapter/.data/test_doctest_patched.py b/python_files/tests/unittestadapter/.data/test_doctest_patched.py
new file mode 100644
index 000000000000..3a719c7139ca
--- /dev/null
+++ b/python_files/tests/unittestadapter/.data/test_doctest_patched.py
@@ -0,0 +1,50 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+"""Test file with patched doctest integration that should work."""
+
+import unittest
+import doctest
+import sys
+import doctest_patched_module
+
+
+# Patch DocTestCase to modify test IDs to be compatible with the extension
+original_init = doctest.DocTestCase.__init__
+
+
+def patched_init(self, test, optionflags=0, setUp=None, tearDown=None, checker=None):
+    """Patch to modify doctest names to have proper hierarchy."""
+    if hasattr(test, 'name'):
+        # Get module name
+        module_hierarchy = test.name.split('.')
+        module_name = module_hierarchy[0] if module_hierarchy else 'unknown'
+
+        # Reconstruct with proper formatting to have enough components
+        # Format: module.file.class.function
+        if test.filename.endswith('.py'):
+            file_base = test.filename.split('/')[-1].replace('.py', '')
+            test_name = test.name.split('.')[-1] if '.' in test.name else test.name
+            # Create a properly formatted ID with enough components
+            test.name = f"{module_name}.{file_base}._DocTests.{test_name}"
+
+    # Call original init
+    original_init(self, test, optionflags, setUp, tearDown, checker)
+
+
+# Apply the patch
+doctest.DocTestCase.__init__ = patched_init
+
+
+def load_tests(loader, tests, ignore):
+    """
+    Standard hook for unittest to load tests.
+    This uses patched doctest to create compatible test IDs.
+    """
+    tests.addTests(doctest.DocTestSuite(doctest_patched_module))
+    return tests
+
+
+# Clean up the patch after loading
+def tearDownModule():
+    """Restore original DocTestCase.__init__"""
+    doctest.DocTestCase.__init__ = original_init
diff --git a/python_files/tests/unittestadapter/.data/test_doctest_standard.py b/python_files/tests/unittestadapter/.data/test_doctest_standard.py
new file mode 100644
index 000000000000..f5dba1209b98
--- /dev/null
+++ b/python_files/tests/unittestadapter/.data/test_doctest_standard.py
@@ -0,0 +1,16 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+"""Test file with standard doctest integration that should be blocked."""
+
+import unittest
+import doctest
+import doctest_standard
+
+
+def load_tests(loader, tests, ignore):
+    """
+    Standard hook for unittest to load tests.
+    This uses standard doctest without any patching.
+    """
+    tests.addTests(doctest.DocTestSuite(doctest_standard))
+    return tests
diff --git a/python_files/tests/unittestadapter/test_utils.py b/python_files/tests/unittestadapter/test_utils.py
index 390b0779a44d..dc8a81175e70 100644
--- a/python_files/tests/unittestadapter/test_utils.py
+++ b/python_files/tests/unittestadapter/test_utils.py
@@ -291,3 +291,49 @@ def test_build_empty_tree() -> None:
     assert tests is not None
     assert tests.get("children") == []
     assert not errors
+
+
+def test_doctest_standard_blocked() -> None:
+    """Standard doctests with short IDs should be skipped with an error message."""
+    start_dir = os.fsdecode(TEST_DATA_PATH)
+    pattern = "test_doctest_standard*"
+
+    loader = unittest.TestLoader()
+    suite = loader.discover(start_dir, pattern)
+    tests, errors = build_test_tree(suite, start_dir)
+
+    # Should return a tree but with no test children (since doctests are skipped)
+    assert tests is not None
+    # Check that we got an error about doctests not being supported
+    assert len(errors) > 0
+    assert "Skipping doctest as it is not supported for the extension" in errors[0]
+
+
+def test_doctest_patched_works() -> None:
+    """Patched doctests with properly formatted IDs should be processed normally."""
+    start_dir = os.fsdecode(TEST_DATA_PATH)
+    pattern = "test_doctest_patched*"
+
+    loader = unittest.TestLoader()
+    suite = loader.discover(start_dir, pattern)
+    tests, errors = build_test_tree(suite, start_dir)
+
+    # Should successfully build a tree with the patched doctest
+    assert tests is not None
+
+    # The patched doctests should have proper IDs and be included
+    # We should find at least one test child (the doctests that were patched)
+    def count_tests(node):
+        """Recursively count test nodes."""
+        if node.get("type_") == "test":
+            return 1
+        count = 0
+        for child in node.get("children", []):
+            count += count_tests(child)
+        return count
+
+    test_count = count_tests(tests)
+    # We expect at least the module doctest and function doctest
+    assert test_count > 0, "Patched doctests should be included in the tree"
+    # Should not have doctest-related errors since they're properly formatted
+    assert not any("doctest" in str(e).lower() for e in errors)
diff --git a/python_files/unittestadapter/pvsc_utils.py b/python_files/unittestadapter/pvsc_utils.py
index 09a5ec9f3be5..e9d7bc092992 100644
--- a/python_files/unittestadapter/pvsc_utils.py
+++ b/python_files/unittestadapter/pvsc_utils.py
@@ -203,12 +203,6 @@ def build_test_tree(
     root = build_test_node(top_level_directory, directory_path.name, TestNodeTypeEnum.folder)
 
     for test_case in get_test_case(suite):
-        if isinstance(test_case, doctest.DocTestCase):
-            print(
-                "Skipping doctest as it is not supported for the extension. Test case: ", test_case
-            )
-            error = ["Skipping doctest as it is not supported for the extension."]
-            continue
         test_id = test_case.id()
         if test_id.startswith("unittest.loader._FailedTest"):
             error.append(str(test_case._exception))  # type: ignore  # noqa: SLF001
@@ -221,6 +215,14 @@ def build_test_tree(
         else:
             # Get the static test path components: filename, class name and function name.
             components = test_id.split(".")
+            # Check if this is a doctest with insufficient components that would cause unpacking to fail
+            if len(components) < 3 and isinstance(test_case, doctest.DocTestCase):
+                print(
+                    "Skipping doctest as it is not supported for the extension. Test case: ",
+                    test_case,
+                )
+                error = ["Skipping doctest as it is not supported for the extension."]
+                continue
             *folders, filename, class_name, function_name = components
             py_filename = f"{filename}.py"
 

From d7af377c7b14958fbef34f1d864215b34cb31fd7 Mon Sep 17 00:00:00 2001
From: Copilot <198982749+Copilot@users.noreply.github.com>
Date: Fri, 14 Nov 2025 23:42:47 +0000
Subject: [PATCH 098/178] Fix: Open file browser at workspace root when
 selecting interpreter path (#25520)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

## Problem

When users click "Enter interpreter path..." and then select "Find..."
to browse for a Python interpreter, the file browser dialog opens at the
user's home directory instead of the current workspace root. This
creates a frustrating experience when trying to navigate to virtual
environments (like `.venv`) or other interpreters located within the
project directory.

![File browser opening at wrong
location](https://github.com/user-attachments/assets/8cbb89e6-8f1b-4ff2-8f15-d44ef6a7d01f)

## Solution

Added the `defaultUri` parameter to the `showOpenDialog` call in the
`_enterOrBrowseInterpreterPath` method. This parameter is set to
`state.workspace`, which contains the current workspace folder URI when
a workspace is open.

```typescript
const uris = await this.applicationShell.showOpenDialog({
    filters: this.platformService.isWindows ? filtersObject : undefined,
    openLabel: InterpreterQuickPickList.browsePath.openButtonLabel,
    canSelectMany: false,
    title: InterpreterQuickPickList.browsePath.title,
    defaultUri: state.workspace,  // ← Added this line
});
```

## Impact

- **With workspace open:** File browser now opens at the workspace root
directory, making it easy to find `.venv` folders and project-specific
interpreters
- **Without workspace open:** Behavior unchanged - file browser opens at
the default location (typically user's home directory)

## Testing

- Updated all existing unit tests to include the new `defaultUri`
parameter in expected values
- Added new test case: "If `Browse...` option is selected with
workspace, file browser opens at workspace root"
- All 35 tests in the "Set Interpreter Command" suite pass ✅

Fixes issue where users expected the file browser to open in their
current project directory when browsing for interpreters, improving the
user experience when setting up virtual environments in VS Code.

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: eleanorjboyd <26030610+eleanorjboyd@users.noreply.github.com>
---
 .../commands/setInterpreter.ts                |  1 +
 .../commands/setInterpreter.unit.test.ts      | 23 +++++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/src/client/interpreter/configuration/interpreterSelector/commands/setInterpreter.ts b/src/client/interpreter/configuration/interpreterSelector/commands/setInterpreter.ts
index 54440485da02..a629d1bc793c 100644
--- a/src/client/interpreter/configuration/interpreterSelector/commands/setInterpreter.ts
+++ b/src/client/interpreter/configuration/interpreterSelector/commands/setInterpreter.ts
@@ -554,6 +554,7 @@ export class SetInterpreterCommand extends BaseInterpreterSelectorCommand implem
                 openLabel: InterpreterQuickPickList.browsePath.openButtonLabel,
                 canSelectMany: false,
                 title: InterpreterQuickPickList.browsePath.title,
+                defaultUri: state.workspace,
             });
             if (uris && uris.length > 0) {
                 state.path = uris[0].fsPath;
diff --git a/src/test/configuration/interpreterSelector/commands/setInterpreter.unit.test.ts b/src/test/configuration/interpreterSelector/commands/setInterpreter.unit.test.ts
index 0016ca339bfe..7837245ec9d2 100644
--- a/src/test/configuration/interpreterSelector/commands/setInterpreter.unit.test.ts
+++ b/src/test/configuration/interpreterSelector/commands/setInterpreter.unit.test.ts
@@ -1052,6 +1052,7 @@ suite('Set Interpreter Command', () => {
                 openLabel: InterpreterQuickPickList.browsePath.openButtonLabel,
                 canSelectMany: false,
                 title: InterpreterQuickPickList.browsePath.title,
+                defaultUri: undefined,
             };
             const multiStepInput = TypeMoq.Mock.ofType<IMultiStepInput<InterpreterStateArgs>>();
             multiStepInput.setup((i) => i.showQuickPick(TypeMoq.It.isAny())).returns(() => Promise.resolve(items[0]));
@@ -1073,6 +1074,27 @@ suite('Set Interpreter Command', () => {
                 openLabel: InterpreterQuickPickList.browsePath.openButtonLabel,
                 canSelectMany: false,
                 title: InterpreterQuickPickList.browsePath.title,
+                defaultUri: undefined,
+            };
+            multiStepInput.setup((i) => i.showQuickPick(TypeMoq.It.isAny())).returns(() => Promise.resolve(items[0]));
+            appShell.setup((a) => a.showOpenDialog(expectedParams)).verifiable(TypeMoq.Times.once());
+            platformService.setup((p) => p.isWindows).returns(() => false);
+
+            await setInterpreterCommand._enterOrBrowseInterpreterPath(multiStepInput.object, state).ignoreErrors();
+
+            appShell.verifyAll();
+        });
+
+        test('If `Browse...` option is selected with workspace, file browser opens at workspace root', async () => {
+            const workspaceUri = Uri.parse('file:///workspace/root');
+            const state: InterpreterStateArgs = { path: undefined, workspace: workspaceUri };
+            const multiStepInput = TypeMoq.Mock.ofType<IMultiStepInput<InterpreterStateArgs>>();
+            const expectedParams = {
+                filters: undefined,
+                openLabel: InterpreterQuickPickList.browsePath.openButtonLabel,
+                canSelectMany: false,
+                title: InterpreterQuickPickList.browsePath.title,
+                defaultUri: workspaceUri,
             };
             multiStepInput.setup((i) => i.showQuickPick(TypeMoq.It.isAny())).returns(() => Promise.resolve(items[0]));
             appShell.setup((a) => a.showOpenDialog(expectedParams)).verifiable(TypeMoq.Times.once());
@@ -1126,6 +1148,7 @@ suite('Set Interpreter Command', () => {
                     openLabel: InterpreterQuickPickList.browsePath.openButtonLabel,
                     canSelectMany: false,
                     title: InterpreterQuickPickList.browsePath.title,
+                    defaultUri: undefined,
                 };
                 multiStepInput
                     .setup((i) => i.showQuickPick(TypeMoq.It.isAny()))

From 8989323b1b98e2a9da26e53ad3af99914e61717a Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Mon, 17 Nov 2025 14:46:39 -0800
Subject: [PATCH 099/178] Add line number support for class nodes in pytest and
 unittest (#25593)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

## Plan: Add Location to TestClass Items for Run Functionality

This PR implements the fix for issue #25592 - TestClass items need a
location (lineno) to be runnable and show the green arrow in VS Code's
Test Explorer.

### Changes Completed:

#### Pytest:
- [x] Update Python pytest adapter to add `lineno` field to class nodes
- [x] Modify `create_class_node()` in
`python_files/vscode_pytest/__init__.py` to extract and include line
number
  - [x] Update TypeScript types to allow `lineno` on class nodes
  - [x] Fix Python type checking errors

- [x] Update expected test outputs
- [x] Update all expected discovery outputs in
`python_files/tests/pytestadapter/expected_discovery_test_output.py` to
include `lineno` for class nodes
  - [x] Add `find_class_line_number()` helper function

#### Unittest:
- [x] Update Python unittest adapter to add `lineno` field to class
nodes
- [x] Modify `build_test_tree()` in
`python_files/unittestadapter/pvsc_utils.py` to add line numbers
  - [x] Add `get_class_line()` function to extract class line numbers
  - [x] Make `lineno` optional field in `TestNode` TypedDict
- [x] Return empty string instead of "*" when line cannot be determined

- [x] Update expected test outputs
- [x] Update expected discovery outputs in
`python_files/tests/unittestadapter/expected_discovery_test_output.py`
to include `lineno` for class nodes
  - [x] Add `find_class_line_number()` helper function

#### TypeScript:
- [x] Update TypeScript result resolver
- [x] Modify `populateTestTree()` in
`src/client/testing/testController/common/utils.ts` to handle `lineno`
for class nodes
- [x] Update type definitions to allow optional `lineno` on
`DiscoveredTestNode`
  - [x] Add 'function' to `DiscoveredTestType` enum

### Test Results:

**Pytest tests:** ✅ 13/15 passing (2 failures expected - pytest-describe
plugin not installed)
**Unittest tests:** ✅ Verified class nodes include lineno

**Code quality:**
- ✅ Ruff formatting and linting passed
- ⚠️ Pyright has pre-existing errors (not introduced by this change)

### Technical Implementation:

**Pytest:**
- Extract line number from pytest.Class objects using Python's
`inspect.getsourcelines()`
- Add `lineno` as optional field to TestNode TypedDict (using
NotRequired)
- Return empty string when line number cannot be determined

**Unittest:**
- Extract line number from test_case.__class__ using
`inspect.getsourcelines()`
- Add `lineno` field to class nodes during tree building
- Use same optional field pattern in TestNode TypedDict
- Return empty string when line number cannot be determined (consistent
with pytest)

**TypeScript:**
- Create VS Code ranges for class nodes when `lineno` is present

This minimal change ensures TestClass items are treated similarly to
test items in terms of having a location, making them runnable in the VS
Code UI for both pytest and unittest.

<!-- START COPILOT CODING AGENT SUFFIX -->



<details>

<summary>Original prompt</summary>

fantastic analysis. Please implement this and keep in mind all this
context you have; both how this should be done, what should be changed,
and how tests are impacted

<analysis>
[Chronological Review: The conversation began with the user requesting a
discussion about issue #25592 on GitHub, specifically regarding the need
for TestClass items to have a location for proper functionality. The
user then asked about the risks associated with this change and which
tests would need updating. Following a positive response to the
analysis, the user requested implementation of the discussed changes
while considering the context of how it should be done, what should be
changed, and how tests are impacted.]

[Intent Mapping:
1. "lets talk about this issue:
https://github.com/microsoft/vscode-python/issues/25592 what needs to be
done (likely) is TestClass items need a location so it shows as the
green arrow and makes it runnable." - User wants to discuss the issue
and create a plan for implementation.
2. "what risk does this change have? what tests will need to be
updated?" - User seeks to understand the implications of the changes and
necessary test updates.
3. "fantastic analysis. Please implement this and keep in mind all this
context you have; both how this should be done, what should be changed,
and how tests are impacted." - User requests implementation of the
analysis with a focus on context and impact.]

[Technical Inventory:
- Repository: vscode-python
- Current Branch: supposed-spoonbill
- Default Branch: main
- Active Pull Request: support extra patching for doctest
(https://github.com/microsoft/vscode-python/pull/25591)
- Issue Discussed: #25592 regarding TestClass items needing a location.]

[Code Archaeology: No specific files or code changes were discussed in
detail, but the focus was on the functionality of TestClass items and
their integration into the existing codebase.]

[Progress Assessment:
- Completed Tasks: Analysis of the issue and identification of necessary
changes.
- Partially Complete Work: Implementation of the discussed changes is
pending.
- Validated Outcomes: None yet, as implementation has not been
executed.]

[Context Validation: All critical information for continuation is
captured, including the need for changes to TestClass items and the
implications for testing.]

[Recent Commands Analysis:
- Last Agent Commands: User requested a plan for the issue, an analysis
of risks, and implementation of the discussed changes.
- Tool Results Summary: No specific tool results were returned as the
conversation focused on planning and analysis rather than executing code
or commands.
- Pre-Summary State: The agent was actively discussing the
implementation of changes related to issue #25592 when the token budget
was exceeded.
- Operation Context: The commands were executed to align with the user's
goals of addressing the issue and ensuring proper functionality of
TestClass items.]

</analysis>

<summary>
1. Conversation Overview:
- Primary Objectives: The user aimed to discuss issue #25592, focusing
on making TestClass items runnable by providing them with a location.
The user also sought to understand the risks and necessary test updates
related to this change.
- Session Context: The conversation flowed from discussing the issue,
analyzing risks, and finally requesting implementation of the proposed
changes.
- User Intent Evolution: The user transitioned from seeking information
and analysis to requesting concrete implementation of the discussed
changes.

2. Technical Foundation:
- Repository: vscode-python
- Current Branch: supposed-spoonbill
- Default Branch: main
- Active Pull Request: support extra patching for doctest
(https://github.com/microsoft/vscode-python/pull/25591)

3. Codebase Status:
- No specific files were modified or discussed in detail, but the focus
was on the functionality of TestClass items.

4. Problem Resolution:
- Issues Encountered: The need for TestClass items to have a location
for proper functionality.
- Solutions Implemented: Analysis of the issue and identification of
necessary changes were completed, but implementation is pending.
- Debugging Context: No ongoing troubleshooting efforts were mentioned.
- Lessons Learned: Understanding the implications of changes on existing
functionality and tests is crucial.

5. Progress Tracking:
- Completed Tasks: Analysis of the issue and identification of necessary
changes.
- Partially Complete Work: Implementation of the discussed changes is
pending.
- Validated Outcomes: None yet, as implementation has not been executed.

6. Active Work State:
- Current Focus: The user was focused on implementing changes related to
issue #25592.
- Recent Context: The last few exchanges involved discussing the issue,
analyzing risks, and planning for implementation.
- Working Code: No specific code snippets were discussed recently.
- Immediate Context: The specific problem being addressed was the need
for TestClass items to have a locat...

</details>

Created from [VS
Code](https://code.visualstudio.com/docs/copilot/copilot-coding-agent).

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
---
 .../expected_discovery_test_output.py         | 46 ++++++++++++++++++-
 python_files/tests/pytestadapter/helpers.py   | 22 +++++++++
 .../expected_discovery_test_output.py         | 33 +++++++++++++
 python_files/unittestadapter/pvsc_utils.py    | 17 +++++++
 python_files/vscode_pytest/__init__.py        | 26 ++++++++++-
 .../testing/testController/common/types.ts    |  3 +-
 .../testing/testController/common/utils.ts    | 15 ++++++
 7 files changed, 159 insertions(+), 3 deletions(-)

diff --git a/python_files/tests/pytestadapter/expected_discovery_test_output.py b/python_files/tests/pytestadapter/expected_discovery_test_output.py
index e00db5d660a3..b6f0779cf982 100644
--- a/python_files/tests/pytestadapter/expected_discovery_test_output.py
+++ b/python_files/tests/pytestadapter/expected_discovery_test_output.py
@@ -1,6 +1,11 @@
 import os
 
-from .helpers import TEST_DATA_PATH, find_test_line_number, get_absolute_test_id
+from .helpers import (
+    TEST_DATA_PATH,
+    find_class_line_number,
+    find_test_line_number,
+    get_absolute_test_id,
+)
 
 # This file contains the expected output dictionaries for tests discovery and is used in test_discovery.py.
 
@@ -95,6 +100,7 @@
                         "unittest_pytest_same_file.py::TestExample",
                         unit_pytest_same_file_path,
                     ),
+                    "lineno": find_class_line_number("TestExample", unit_pytest_same_file_path),
                 },
                 {
                     "name": "test_true_pytest",
@@ -207,6 +213,7 @@
                                 "unittest_folder/test_add.py::TestAddFunction",
                                 test_add_path,
                             ),
+                            "lineno": find_class_line_number("TestAddFunction", test_add_path),
                         },
                         {
                             "name": "TestDuplicateFunction",
@@ -235,6 +242,9 @@
                                 "unittest_folder/test_add.py::TestDuplicateFunction",
                                 test_add_path,
                             ),
+                            "lineno": find_class_line_number(
+                                "TestDuplicateFunction", test_add_path
+                            ),
                         },
                     ],
                 },
@@ -288,6 +298,9 @@
                                 "unittest_folder/test_subtract.py::TestSubtractFunction",
                                 test_subtract_path,
                             ),
+                            "lineno": find_class_line_number(
+                                "TestSubtractFunction", test_subtract_path
+                            ),
                         },
                         {
                             "name": "TestDuplicateFunction",
@@ -316,6 +329,9 @@
                                 "unittest_folder/test_subtract.py::TestDuplicateFunction",
                                 test_subtract_path,
                             ),
+                            "lineno": find_class_line_number(
+                                "TestDuplicateFunction", test_subtract_path
+                            ),
                         },
                     ],
                 },
@@ -553,6 +569,7 @@
                         "parametrize_tests.py::TestClass",
                         parameterize_tests_path,
                     ),
+                    "lineno": find_class_line_number("TestClass", parameterize_tests_path),
                     "children": [
                         {
                             "name": "test_adding",
@@ -929,6 +946,7 @@
                         "test_multi_class_nest.py::TestFirstClass",
                         TEST_MULTI_CLASS_NEST_PATH,
                     ),
+                    "lineno": find_class_line_number("TestFirstClass", TEST_MULTI_CLASS_NEST_PATH),
                     "children": [
                         {
                             "name": "TestSecondClass",
@@ -938,6 +956,9 @@
                                 "test_multi_class_nest.py::TestFirstClass::TestSecondClass",
                                 TEST_MULTI_CLASS_NEST_PATH,
                             ),
+                            "lineno": find_class_line_number(
+                                "TestSecondClass", TEST_MULTI_CLASS_NEST_PATH
+                            ),
                             "children": [
                                 {
                                     "name": "test_second",
@@ -982,6 +1003,9 @@
                                 "test_multi_class_nest.py::TestFirstClass::TestSecondClass2",
                                 TEST_MULTI_CLASS_NEST_PATH,
                             ),
+                            "lineno": find_class_line_number(
+                                "TestSecondClass2", TEST_MULTI_CLASS_NEST_PATH
+                            ),
                             "children": [
                                 {
                                     "name": "test_second2",
@@ -1227,6 +1251,9 @@
                         "same_function_new_class_param.py::TestNotEmpty",
                         TEST_DATA_PATH / "same_function_new_class_param.py",
                     ),
+                    "lineno": find_class_line_number(
+                        "TestNotEmpty", TEST_DATA_PATH / "same_function_new_class_param.py"
+                    ),
                 },
                 {
                     "name": "TestEmpty",
@@ -1298,6 +1325,9 @@
                         "same_function_new_class_param.py::TestEmpty",
                         TEST_DATA_PATH / "same_function_new_class_param.py",
                     ),
+                    "lineno": find_class_line_number(
+                        "TestEmpty", TEST_DATA_PATH / "same_function_new_class_param.py"
+                    ),
                 },
             ],
         }
@@ -1371,6 +1401,9 @@
                         "test_param_span_class.py::TestClass1",
                         TEST_DATA_PATH / "test_param_span_class.py",
                     ),
+                    "lineno": find_class_line_number(
+                        "TestClass1", TEST_DATA_PATH / "test_param_span_class.py"
+                    ),
                 },
                 {
                     "name": "TestClass2",
@@ -1427,6 +1460,9 @@
                         "test_param_span_class.py::TestClass2",
                         TEST_DATA_PATH / "test_param_span_class.py",
                     ),
+                    "lineno": find_class_line_number(
+                        "TestClass2", TEST_DATA_PATH / "test_param_span_class.py"
+                    ),
                 },
             ],
         }
@@ -1503,6 +1539,7 @@
                                 "pytest_describe_plugin/describe_only.py::describe_A",
                                 describe_only_path,
                             ),
+                            "lineno": find_class_line_number("describe_A", describe_only_path),
                         }
                     ],
                 }
@@ -1586,6 +1623,9 @@
                                         "pytest_describe_plugin/nested_describe.py::describe_list::describe_append",
                                         nested_describe_path,
                                     ),
+                                    "lineno": find_class_line_number(
+                                        "describe_append", nested_describe_path
+                                    ),
                                 },
                                 {
                                     "name": "describe_remove",
@@ -1614,12 +1654,16 @@
                                         "pytest_describe_plugin/nested_describe.py::describe_list::describe_remove",
                                         nested_describe_path,
                                     ),
+                                    "lineno": find_class_line_number(
+                                        "describe_remove", nested_describe_path
+                                    ),
                                 },
                             ],
                             "id_": get_absolute_test_id(
                                 "pytest_describe_plugin/nested_describe.py::describe_list",
                                 nested_describe_path,
                             ),
+                            "lineno": find_class_line_number("describe_list", nested_describe_path),
                         }
                     ],
                 }
diff --git a/python_files/tests/pytestadapter/helpers.py b/python_files/tests/pytestadapter/helpers.py
index 4c337585bece..25e6187e2efa 100644
--- a/python_files/tests/pytestadapter/helpers.py
+++ b/python_files/tests/pytestadapter/helpers.py
@@ -370,6 +370,28 @@ def find_test_line_number(test_name: str, test_file_path) -> str:
     raise ValueError(error_str)
 
 
+def find_class_line_number(class_name: str, test_file_path) -> str:
+    """Function which finds the correct line number for a class definition.
+
+    Args:
+    class_name: The name of the class to find the line number for.
+    test_file_path: The path to the test file where the class is located.
+    """
+    # Look for the class definition line (or function for pytest-describe)
+    with open(test_file_path) as f:  # noqa: PTH123
+        for i, line in enumerate(f):
+            # Match "class ClassName" or "class ClassName(" or "class ClassName:"
+            # Also match "def ClassName(" for pytest-describe blocks
+            if (
+                line.strip().startswith(f"class {class_name}")
+                or line.strip().startswith(f"class {class_name}(")
+                or line.strip().startswith(f"def {class_name}(")
+            ):
+                return str(i + 1)
+    error_str: str = f"Class {class_name!r} not found on any line in {test_file_path}"
+    raise ValueError(error_str)
+
+
 def get_absolute_test_id(test_id: str, test_path: pathlib.Path) -> str:
     """Get the absolute test id by joining the testPath with the test_id."""
     split_id = test_id.split("::")[1:]
diff --git a/python_files/tests/unittestadapter/expected_discovery_test_output.py b/python_files/tests/unittestadapter/expected_discovery_test_output.py
index 9de0eff8238c..0901f21bfbc2 100644
--- a/python_files/tests/unittestadapter/expected_discovery_test_output.py
+++ b/python_files/tests/unittestadapter/expected_discovery_test_output.py
@@ -9,6 +9,25 @@
 TEST_DATA_PATH = pathlib.Path(__file__).parent / ".data"
 
 
+def find_class_line_number(class_name: str, test_file_path) -> str:
+    """Function which finds the correct line number for a class definition.
+
+    Args:
+    class_name: The name of the class to find the line number for.
+    test_file_path: The path to the test file where the class is located.
+    """
+    # Look for the class definition line
+    with pathlib.Path(test_file_path).open() as f:
+        for i, line in enumerate(f):
+            # Match "class ClassName" or "class ClassName(" or "class ClassName:"
+            if line.strip().startswith(f"class {class_name}") or line.strip().startswith(
+                f"class {class_name}("
+            ):
+                return str(i + 1)
+    error_str: str = f"Class {class_name!r} not found on any line in {test_file_path}"
+    raise ValueError(error_str)
+
+
 skip_unittest_folder_discovery_output = {
     "path": os.fspath(TEST_DATA_PATH / "unittest_skip"),
     "name": "unittest_skip",
@@ -49,6 +68,10 @@
                     ],
                     "id_": os.fspath(TEST_DATA_PATH / "unittest_skip" / "unittest_skip_function.py")
                     + "\\SimpleTest",
+                    "lineno": find_class_line_number(
+                        "SimpleTest",
+                        TEST_DATA_PATH / "unittest_skip" / "unittest_skip_function.py",
+                    ),
                 }
             ],
             "id_": os.fspath(TEST_DATA_PATH / "unittest_skip" / "unittest_skip_function.py"),
@@ -114,6 +137,16 @@
                                         },
                                     ],
                                     "id_": complex_tree_file_path + "\\" + "TreeOne",
+                                    "lineno": find_class_line_number(
+                                        "TreeOne",
+                                        pathlib.PurePath(
+                                            TEST_DATA_PATH,
+                                            "utils_complex_tree",
+                                            "test_outer_folder",
+                                            "test_inner_folder",
+                                            "test_utils_complex_tree.py",
+                                        ),
+                                    ),
                                 }
                             ],
                             "id_": complex_tree_file_path,
diff --git a/python_files/unittestadapter/pvsc_utils.py b/python_files/unittestadapter/pvsc_utils.py
index e9d7bc092992..d6920592a4d4 100644
--- a/python_files/unittestadapter/pvsc_utils.py
+++ b/python_files/unittestadapter/pvsc_utils.py
@@ -44,6 +44,7 @@ class TestItem(TestData):
 
 class TestNode(TestData):
     children: "List[TestNode | TestItem]"
+    lineno: NotRequired[str]  # Optional field for class nodes
 
 
 class TestExecutionStatus(str, enum.Enum):
@@ -101,6 +102,16 @@ def get_test_case(suite):
             yield from get_test_case(test)
 
 
+def get_class_line(test_case: unittest.TestCase) -> Optional[str]:
+    """Get the line number where a test class is defined."""
+    try:
+        test_class = test_case.__class__
+        _sourcelines, lineno = inspect.getsourcelines(test_class)
+        return str(lineno)
+    except Exception:
+        return None
+
+
 def get_source_line(obj) -> str:
     """Get the line number of a test case start line."""
     try:
@@ -249,6 +260,12 @@ def build_test_tree(
                 class_name, file_path, TestNodeTypeEnum.class_, current_node
             )
 
+            # Add line number to class node if not already present.
+            if "lineno" not in current_node:
+                class_lineno = get_class_line(test_case)
+                if class_lineno is not None:
+                    current_node["lineno"] = class_lineno
+
             # Get test line number.
             test_method = getattr(test_case, test_case._testMethodName)  # noqa: SLF001
             lineno = get_source_line(test_method)
diff --git a/python_files/vscode_pytest/__init__.py b/python_files/vscode_pytest/__init__.py
index 0eac4a74f4c3..91a81bff9a36 100644
--- a/python_files/vscode_pytest/__init__.py
+++ b/python_files/vscode_pytest/__init__.py
@@ -10,9 +10,19 @@
 import pathlib
 import sys
 import traceback
-from typing import TYPE_CHECKING, Any, Dict, Generator, Literal, Protocol, TypedDict, cast
+from typing import (
+    TYPE_CHECKING,
+    Any,
+    Dict,
+    Generator,
+    Literal,
+    Protocol,
+    TypedDict,
+    cast,
+)
 
 import pytest
+from typing_extensions import NotRequired
 
 if TYPE_CHECKING:
     from pluggy import Result
@@ -52,6 +62,7 @@ class TestNode(TestData):
     """A general class that handles all test data which contains children."""
 
     children: list[TestNode | TestItem | None]
+    lineno: NotRequired[str]  # Optional field for class/function nodes
 
 
 class VSCodePytestError(Exception):
@@ -830,12 +841,25 @@ def create_class_node(class_module: pytest.Class | DescribeBlock) -> TestNode:
     Keyword arguments:
     class_module -- the pytest object representing a class module.
     """
+    # Get line number for the class definition
+    class_line = ""
+    try:
+        if hasattr(class_module, "obj"):
+            import inspect
+
+            _, lineno = inspect.getsourcelines(class_module.obj)
+            class_line = str(lineno)
+    except (OSError, TypeError):
+        # If we can't get the source lines, leave lineno empty
+        pass
+
     return {
         "name": class_module.name,
         "path": get_node_path(class_module),
         "type_": "class",
         "children": [],
         "id_": get_absolute_test_id(class_module.nodeid, get_node_path(class_module)),
+        "lineno": class_line,
     }
 
 
diff --git a/src/client/testing/testController/common/types.ts b/src/client/testing/testController/common/types.ts
index 5c6796905024..6121b3e24442 100644
--- a/src/client/testing/testController/common/types.ts
+++ b/src/client/testing/testController/common/types.ts
@@ -177,7 +177,7 @@ export interface ITestExecutionAdapter {
 }
 
 // Same types as in python_files/unittestadapter/utils.py
-export type DiscoveredTestType = 'folder' | 'file' | 'class' | 'test';
+export type DiscoveredTestType = 'folder' | 'file' | 'class' | 'function' | 'test';
 
 export type DiscoveredTestCommon = {
     path: string;
@@ -194,6 +194,7 @@ export type DiscoveredTestItem = DiscoveredTestCommon & {
 
 export type DiscoveredTestNode = DiscoveredTestCommon & {
     children: (DiscoveredTestNode | DiscoveredTestItem)[];
+    lineno?: number | string;
 };
 
 export type DiscoveredTestPayload = {
diff --git a/src/client/testing/testController/common/utils.ts b/src/client/testing/testController/common/utils.ts
index 0bbf0e449dcd..606865e5ad7e 100644
--- a/src/client/testing/testController/common/utils.ts
+++ b/src/client/testing/testController/common/utils.ts
@@ -257,6 +257,21 @@ export function populateTestTree(
 
                     node.canResolveChildren = true;
                     node.tags = [RunTestTag, DebugTestTag];
+
+                    // Set range for class nodes (and other nodes) if lineno is available
+                    let range: Range | undefined;
+                    if ('lineno' in child && child.lineno) {
+                        if (Number(child.lineno) === 0) {
+                            range = new Range(new Position(0, 0), new Position(0, 0));
+                        } else {
+                            range = new Range(
+                                new Position(Number(child.lineno) - 1, 0),
+                                new Position(Number(child.lineno), 0),
+                            );
+                        }
+                        node.range = range;
+                    }
+
                     testRoot!.children.add(node);
                 }
                 populateTestTree(testController, child, node, resultResolver, token);

From 782a2f15faf2dd192924d7dde39c68e655e2c739 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Fri, 21 Nov 2025 09:05:12 -0800
Subject: [PATCH 100/178] Bump js-yaml (#25596)

Bumps and [js-yaml](https://github.com/nodeca/js-yaml). These
dependencies needed to be updated together.
Updates `js-yaml` from 3.13.1 to 3.14.2
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/nodeca/js-yaml/blob/master/CHANGELOG.md">js-yaml's
changelog</a>.</em></p>
<blockquote>
<h2>[3.14.2] - 2025-11-15</h2>
<h3>Security</h3>
<ul>
<li>Backported v4.1.1 fix to v3</li>
</ul>
<h2>[4.1.1] - 2025-11-12</h2>
<h3>Security</h3>
<ul>
<li>Fix prototype pollution issue in yaml merge (&lt;&lt;)
operator.</li>
</ul>
<h2>[4.1.0] - 2021-04-15</h2>
<h3>Added</h3>
<ul>
<li>Types are now exported as <code>yaml.types.XXX</code>.</li>
<li>Every type now has <code>options</code> property with original
arguments kept as they were
(see <code>yaml.types.int.options</code> as an example).</li>
</ul>
<h3>Changed</h3>
<ul>
<li><code>Schema.extend()</code> now keeps old type order in case of
conflicts
(e.g. Schema.extend([ a, b, c ]).extend([ b, a, d ]) is now ordered as
<code>abcd</code> instead of <code>cbad</code>).</li>
</ul>
<h2>[4.0.0] - 2021-01-03</h2>
<h3>Changed</h3>
<ul>
<li>Check <a
href="https://github.com/nodeca/js-yaml/blob/master/migrate_v3_to_v4.md">migration
guide</a> to see details for all breaking changes.</li>
<li>Breaking: &quot;unsafe&quot; tags <code>!!js/function</code>,
<code>!!js/regexp</code>, <code>!!js/undefined</code> are
moved to <a
href="https://github.com/nodeca/js-yaml-js-types">js-yaml-js-types</a>
package.</li>
<li>Breaking: removed <code>safe*</code> functions. Use
<code>load</code>, <code>loadAll</code>, <code>dump</code>
instead which are all now safe by default.</li>
<li><code>yaml.DEFAULT_SAFE_SCHEMA</code> and
<code>yaml.DEFAULT_FULL_SCHEMA</code> are removed, use
<code>yaml.DEFAULT_SCHEMA</code> instead.</li>
<li><code>yaml.Schema.create(schema, tags)</code> is removed, use
<code>schema.extend(tags)</code> instead.</li>
<li><code>!!binary</code> now always mapped to <code>Uint8Array</code>
on load.</li>
<li>Reduced nesting of <code>/lib</code> folder.</li>
<li>Parse numbers according to YAML 1.2 instead of YAML 1.1
(<code>01234</code> is now decimal,
<code>0o1234</code> is octal, <code>1:23</code> is parsed as string
instead of base60).</li>
<li><code>dump()</code> no longer quotes <code>:</code>, <code>[</code>,
<code>]</code>, <code>(</code>, <code>)</code> except when necessary, <a
href="https://redirect.github.com/nodeca/js-yaml/issues/470">#470</a>,
<a
href="https://redirect.github.com/nodeca/js-yaml/issues/557">#557</a>.</li>
<li>Line and column in exceptions are now formatted as
<code>(X:Y)</code> instead of
<code>at line X, column Y</code> (also present in compact format), <a
href="https://redirect.github.com/nodeca/js-yaml/issues/332">#332</a>.</li>
<li>Code snippet created in exceptions now contains multiple lines with
line numbers.</li>
<li><code>dump()</code> now serializes <code>undefined</code> as
<code>null</code> in collections and removes keys with
<code>undefined</code> in mappings, <a
href="https://redirect.github.com/nodeca/js-yaml/issues/571">#571</a>.</li>
<li><code>dump()</code> with <code>skipInvalid=true</code> now
serializes invalid items in collections as null.</li>
<li>Custom tags starting with <code>!</code> are now dumped as
<code>!tag</code> instead of <code>!&lt;!tag&gt;</code>, <a
href="https://redirect.github.com/nodeca/js-yaml/issues/576">#576</a>.</li>
<li>Custom tags starting with <code>tag:yaml.org,2002:</code> are now
shorthanded using <code>!!</code>, <a
href="https://redirect.github.com/nodeca/js-yaml/issues/258">#258</a>.</li>
</ul>
<h3>Added</h3>
<ul>
<li>Added <code>.mjs</code> (es modules) support.</li>
<li>Added <code>quotingType</code> and <code>forceQuotes</code> options
for dumper to configure
string literal style, <a
href="https://redirect.github.com/nodeca/js-yaml/issues/290">#290</a>,
<a
href="https://redirect.github.com/nodeca/js-yaml/issues/529">#529</a>.</li>
<li>Added <code>styles: { '!!null': 'empty' }</code> option for dumper
(serializes <code>{ foo: null }</code> as &quot;<code>foo:
</code>&quot;), <a
href="https://redirect.github.com/nodeca/js-yaml/issues/570">#570</a>.</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/nodeca/js-yaml/commit/9963d366dfbde0c69722452bcd40b41e7e4160a0"><code>9963d36</code></a>
3.14.2 released</li>
<li><a
href="https://github.com/nodeca/js-yaml/commit/10d3c8e70a6888543f5cdb656bb39f73e0ea77c1"><code>10d3c8e</code></a>
dist rebuild</li>
<li><a
href="https://github.com/nodeca/js-yaml/commit/5278870a17454fe8621dbd8c445c412529525266"><code>5278870</code></a>
fix prototype pollution in merge (&lt;&lt;) (<a
href="https://redirect.github.com/nodeca/js-yaml/issues/731">#731</a>)</li>
<li><a
href="https://github.com/nodeca/js-yaml/commit/37caaad57dc37d350d9a4577a5da53f482bb2983"><code>37caaad</code></a>
3.14.1 released</li>
<li><a
href="https://github.com/nodeca/js-yaml/commit/094c0f7a79e6ff9e2b4d50b22686d2586894b58f"><code>094c0f7</code></a>
dist rebuild</li>
<li><a
href="https://github.com/nodeca/js-yaml/commit/9586ebe23298427d26b3479979bd6499bf3a14c2"><code>9586ebe</code></a>
Avoid calling hasOwnProperty of user-controlled objects</li>
<li><a
href="https://github.com/nodeca/js-yaml/commit/34e5072f43fd36b08aaaad433da73c10d47c41e5"><code>34e5072</code></a>
3.14.0 released</li>
<li><a
href="https://github.com/nodeca/js-yaml/commit/7b25c83a6dc77097c2bf14bf714e168f60ee199b"><code>7b25c83</code></a>
Browser files rebuild</li>
<li><a
href="https://github.com/nodeca/js-yaml/commit/6f7347396867b8dcfc042722c2aae810dfe4caae"><code>6f73473</code></a>
Dev deps bump</li>
<li><a
href="https://github.com/nodeca/js-yaml/commit/0c293491d903cddcd41b41c165bc45eeb9a8d720"><code>0c29349</code></a>
Travis-CI: drop old nodejs versions</li>
<li>Additional commits viewable in <a
href="https://github.com/nodeca/js-yaml/compare/3.13.1...3.14.2">compare
view</a></li>
</ul>
</details>
<br />

Updates `js-yaml` from 4.1.0 to 4.1.1
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/nodeca/js-yaml/blob/master/CHANGELOG.md">js-yaml's
changelog</a>.</em></p>
<blockquote>
<h2>[3.14.2] - 2025-11-15</h2>
<h3>Security</h3>
<ul>
<li>Backported v4.1.1 fix to v3</li>
</ul>
<h2>[4.1.1] - 2025-11-12</h2>
<h3>Security</h3>
<ul>
<li>Fix prototype pollution issue in yaml merge (&lt;&lt;)
operator.</li>
</ul>
<h2>[4.1.0] - 2021-04-15</h2>
<h3>Added</h3>
<ul>
<li>Types are now exported as <code>yaml.types.XXX</code>.</li>
<li>Every type now has <code>options</code> property with original
arguments kept as they were
(see <code>yaml.types.int.options</code> as an example).</li>
</ul>
<h3>Changed</h3>
<ul>
<li><code>Schema.extend()</code> now keeps old type order in case of
conflicts
(e.g. Schema.extend([ a, b, c ]).extend([ b, a, d ]) is now ordered as
<code>abcd</code> instead of <code>cbad</code>).</li>
</ul>
<h2>[4.0.0] - 2021-01-03</h2>
<h3>Changed</h3>
<ul>
<li>Check <a
href="https://github.com/nodeca/js-yaml/blob/master/migrate_v3_to_v4.md">migration
guide</a> to see details for all breaking changes.</li>
<li>Breaking: &quot;unsafe&quot; tags <code>!!js/function</code>,
<code>!!js/regexp</code>, <code>!!js/undefined</code> are
moved to <a
href="https://github.com/nodeca/js-yaml-js-types">js-yaml-js-types</a>
package.</li>
<li>Breaking: removed <code>safe*</code> functions. Use
<code>load</code>, <code>loadAll</code>, <code>dump</code>
instead which are all now safe by default.</li>
<li><code>yaml.DEFAULT_SAFE_SCHEMA</code> and
<code>yaml.DEFAULT_FULL_SCHEMA</code> are removed, use
<code>yaml.DEFAULT_SCHEMA</code> instead.</li>
<li><code>yaml.Schema.create(schema, tags)</code> is removed, use
<code>schema.extend(tags)</code> instead.</li>
<li><code>!!binary</code> now always mapped to <code>Uint8Array</code>
on load.</li>
<li>Reduced nesting of <code>/lib</code> folder.</li>
<li>Parse numbers according to YAML 1.2 instead of YAML 1.1
(<code>01234</code> is now decimal,
<code>0o1234</code> is octal, <code>1:23</code> is parsed as string
instead of base60).</li>
<li><code>dump()</code> no longer quotes <code>:</code>, <code>[</code>,
<code>]</code>, <code>(</code>, <code>)</code> except when necessary, <a
href="https://redirect.github.com/nodeca/js-yaml/issues/470">#470</a>,
<a
href="https://redirect.github.com/nodeca/js-yaml/issues/557">#557</a>.</li>
<li>Line and column in exceptions are now formatted as
<code>(X:Y)</code> instead of
<code>at line X, column Y</code> (also present in compact format), <a
href="https://redirect.github.com/nodeca/js-yaml/issues/332">#332</a>.</li>
<li>Code snippet created in exceptions now contains multiple lines with
line numbers.</li>
<li><code>dump()</code> now serializes <code>undefined</code> as
<code>null</code> in collections and removes keys with
<code>undefined</code> in mappings, <a
href="https://redirect.github.com/nodeca/js-yaml/issues/571">#571</a>.</li>
<li><code>dump()</code> with <code>skipInvalid=true</code> now
serializes invalid items in collections as null.</li>
<li>Custom tags starting with <code>!</code> are now dumped as
<code>!tag</code> instead of <code>!&lt;!tag&gt;</code>, <a
href="https://redirect.github.com/nodeca/js-yaml/issues/576">#576</a>.</li>
<li>Custom tags starting with <code>tag:yaml.org,2002:</code> are now
shorthanded using <code>!!</code>, <a
href="https://redirect.github.com/nodeca/js-yaml/issues/258">#258</a>.</li>
</ul>
<h3>Added</h3>
<ul>
<li>Added <code>.mjs</code> (es modules) support.</li>
<li>Added <code>quotingType</code> and <code>forceQuotes</code> options
for dumper to configure
string literal style, <a
href="https://redirect.github.com/nodeca/js-yaml/issues/290">#290</a>,
<a
href="https://redirect.github.com/nodeca/js-yaml/issues/529">#529</a>.</li>
<li>Added <code>styles: { '!!null': 'empty' }</code> option for dumper
(serializes <code>{ foo: null }</code> as &quot;<code>foo:
</code>&quot;), <a
href="https://redirect.github.com/nodeca/js-yaml/issues/570">#570</a>.</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/nodeca/js-yaml/commit/9963d366dfbde0c69722452bcd40b41e7e4160a0"><code>9963d36</code></a>
3.14.2 released</li>
<li><a
href="https://github.com/nodeca/js-yaml/commit/10d3c8e70a6888543f5cdb656bb39f73e0ea77c1"><code>10d3c8e</code></a>
dist rebuild</li>
<li><a
href="https://github.com/nodeca/js-yaml/commit/5278870a17454fe8621dbd8c445c412529525266"><code>5278870</code></a>
fix prototype pollution in merge (&lt;&lt;) (<a
href="https://redirect.github.com/nodeca/js-yaml/issues/731">#731</a>)</li>
<li><a
href="https://github.com/nodeca/js-yaml/commit/37caaad57dc37d350d9a4577a5da53f482bb2983"><code>37caaad</code></a>
3.14.1 released</li>
<li><a
href="https://github.com/nodeca/js-yaml/commit/094c0f7a79e6ff9e2b4d50b22686d2586894b58f"><code>094c0f7</code></a>
dist rebuild</li>
<li><a
href="https://github.com/nodeca/js-yaml/commit/9586ebe23298427d26b3479979bd6499bf3a14c2"><code>9586ebe</code></a>
Avoid calling hasOwnProperty of user-controlled objects</li>
<li><a
href="https://github.com/nodeca/js-yaml/commit/34e5072f43fd36b08aaaad433da73c10d47c41e5"><code>34e5072</code></a>
3.14.0 released</li>
<li><a
href="https://github.com/nodeca/js-yaml/commit/7b25c83a6dc77097c2bf14bf714e168f60ee199b"><code>7b25c83</code></a>
Browser files rebuild</li>
<li><a
href="https://github.com/nodeca/js-yaml/commit/6f7347396867b8dcfc042722c2aae810dfe4caae"><code>6f73473</code></a>
Dev deps bump</li>
<li><a
href="https://github.com/nodeca/js-yaml/commit/0c293491d903cddcd41b41c165bc45eeb9a8d720"><code>0c29349</code></a>
Travis-CI: drop old nodejs versions</li>
<li>Additional commits viewable in <a
href="https://github.com/nodeca/js-yaml/compare/3.13.1...3.14.2">compare
view</a></li>
</ul>
</details>
<br />


Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

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<details>
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<br />

You can trigger Dependabot actions by commenting on this PR:
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---
 package-lock.json | 50 +++++++++++++++++++++++------------------------
 1 file changed, 24 insertions(+), 26 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 9a85807e6068..b3dd75602dc8 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -933,11 +933,10 @@
             }
         },
         "node_modules/@eslint/eslintrc/node_modules/js-yaml": {
-            "version": "4.1.0",
-            "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.1.0.tgz",
-            "integrity": "sha512-wpxZs9NoxZaJESJGIZTyDEaYpl0FKSA+FB9aJiyemKhMwkxQg63h4T1KJgUGHpTqPDNRcmmYLugrRjJlBtWvRA==",
+            "version": "4.1.1",
+            "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.1.1.tgz",
+            "integrity": "sha512-qQKT4zQxXl8lLwBtHMWwaTcGfFOZviOJet3Oy/xmGk2gZH677CJM9EvtfdSkgWcATZhj/55JZ0rmy3myCT5lsA==",
             "dev": true,
-            "license": "MIT",
             "dependencies": {
                 "argparse": "^2.0.1"
             },
@@ -6197,11 +6196,10 @@
             }
         },
         "node_modules/eslint/node_modules/js-yaml": {
-            "version": "4.1.0",
-            "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.1.0.tgz",
-            "integrity": "sha512-wpxZs9NoxZaJESJGIZTyDEaYpl0FKSA+FB9aJiyemKhMwkxQg63h4T1KJgUGHpTqPDNRcmmYLugrRjJlBtWvRA==",
+            "version": "4.1.1",
+            "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.1.1.tgz",
+            "integrity": "sha512-qQKT4zQxXl8lLwBtHMWwaTcGfFOZviOJet3Oy/xmGk2gZH677CJM9EvtfdSkgWcATZhj/55JZ0rmy3myCT5lsA==",
             "dev": true,
-            "license": "MIT",
             "dependencies": {
                 "argparse": "^2.0.1"
             },
@@ -9163,9 +9161,9 @@
             "dev": true
         },
         "node_modules/js-yaml": {
-            "version": "3.13.1",
-            "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.13.1.tgz",
-            "integrity": "sha512-YfbcO7jXDdyj0DGxYVSlSeQNHbD7XPWvrVWeVUujrQEoZzWJIRrCPoyk6kL6IAjAG2IolMK4T0hNUe0HOUs5Jw==",
+            "version": "3.14.2",
+            "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.14.2.tgz",
+            "integrity": "sha512-PMSmkqxr106Xa156c2M265Z+FTrPl+oxd/rgOQy2tijQeK5TxQ43psO1ZCwhVOSdnn+RzkzlRz/eY4BgJBYVpg==",
             "dev": true,
             "dependencies": {
                 "argparse": "^1.0.7",
@@ -10227,9 +10225,9 @@
             }
         },
         "node_modules/mocha/node_modules/js-yaml": {
-            "version": "4.1.0",
-            "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.1.0.tgz",
-            "integrity": "sha512-wpxZs9NoxZaJESJGIZTyDEaYpl0FKSA+FB9aJiyemKhMwkxQg63h4T1KJgUGHpTqPDNRcmmYLugrRjJlBtWvRA==",
+            "version": "4.1.1",
+            "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.1.1.tgz",
+            "integrity": "sha512-qQKT4zQxXl8lLwBtHMWwaTcGfFOZviOJet3Oy/xmGk2gZH677CJM9EvtfdSkgWcATZhj/55JZ0rmy3myCT5lsA==",
             "dev": true,
             "dependencies": {
                 "argparse": "^2.0.1"
@@ -15846,9 +15844,9 @@
                     }
                 },
                 "js-yaml": {
-                    "version": "4.1.0",
-                    "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.1.0.tgz",
-                    "integrity": "sha512-wpxZs9NoxZaJESJGIZTyDEaYpl0FKSA+FB9aJiyemKhMwkxQg63h4T1KJgUGHpTqPDNRcmmYLugrRjJlBtWvRA==",
+                    "version": "4.1.1",
+                    "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.1.1.tgz",
+                    "integrity": "sha512-qQKT4zQxXl8lLwBtHMWwaTcGfFOZviOJet3Oy/xmGk2gZH677CJM9EvtfdSkgWcATZhj/55JZ0rmy3myCT5lsA==",
                     "dev": true,
                     "requires": {
                         "argparse": "^2.0.1"
@@ -19641,9 +19639,9 @@
                     "dev": true
                 },
                 "js-yaml": {
-                    "version": "4.1.0",
-                    "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.1.0.tgz",
-                    "integrity": "sha512-wpxZs9NoxZaJESJGIZTyDEaYpl0FKSA+FB9aJiyemKhMwkxQg63h4T1KJgUGHpTqPDNRcmmYLugrRjJlBtWvRA==",
+                    "version": "4.1.1",
+                    "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.1.1.tgz",
+                    "integrity": "sha512-qQKT4zQxXl8lLwBtHMWwaTcGfFOZviOJet3Oy/xmGk2gZH677CJM9EvtfdSkgWcATZhj/55JZ0rmy3myCT5lsA==",
                     "dev": true,
                     "requires": {
                         "argparse": "^2.0.1"
@@ -22039,9 +22037,9 @@
             "dev": true
         },
         "js-yaml": {
-            "version": "3.13.1",
-            "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.13.1.tgz",
-            "integrity": "sha512-YfbcO7jXDdyj0DGxYVSlSeQNHbD7XPWvrVWeVUujrQEoZzWJIRrCPoyk6kL6IAjAG2IolMK4T0hNUe0HOUs5Jw==",
+            "version": "3.14.2",
+            "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-3.14.2.tgz",
+            "integrity": "sha512-PMSmkqxr106Xa156c2M265Z+FTrPl+oxd/rgOQy2tijQeK5TxQ43psO1ZCwhVOSdnn+RzkzlRz/eY4BgJBYVpg==",
             "dev": true,
             "requires": {
                 "argparse": "^1.0.7",
@@ -22840,9 +22838,9 @@
                     "dev": true
                 },
                 "js-yaml": {
-                    "version": "4.1.0",
-                    "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.1.0.tgz",
-                    "integrity": "sha512-wpxZs9NoxZaJESJGIZTyDEaYpl0FKSA+FB9aJiyemKhMwkxQg63h4T1KJgUGHpTqPDNRcmmYLugrRjJlBtWvRA==",
+                    "version": "4.1.1",
+                    "resolved": "https://registry.npmjs.org/js-yaml/-/js-yaml-4.1.1.tgz",
+                    "integrity": "sha512-qQKT4zQxXl8lLwBtHMWwaTcGfFOZviOJet3Oy/xmGk2gZH677CJM9EvtfdSkgWcATZhj/55JZ0rmy3myCT5lsA==",
                     "dev": true,
                     "requires": {
                         "argparse": "^2.0.1"

From 4b5dc0d44d963fdbed9669131a119dd5b4e058cd Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Fri, 21 Nov 2025 15:26:14 -0800
Subject: [PATCH 101/178] Skip flaky tests in smoke suite for terminal
 execution and smart send (#25604)

---
 src/test/smoke/runInTerminal.smoke.test.ts | 6 +++++-
 src/test/smoke/smartSend.smoke.test.ts     | 6 +++++-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/test/smoke/runInTerminal.smoke.test.ts b/src/test/smoke/runInTerminal.smoke.test.ts
index d5ce409f3ab1..4bdec0843862 100644
--- a/src/test/smoke/runInTerminal.smoke.test.ts
+++ b/src/test/smoke/runInTerminal.smoke.test.ts
@@ -28,7 +28,11 @@ suite('Smoke Test: Run Python File In Terminal', () => {
     suiteTeardown(closeActiveWindows);
     teardown(closeActiveWindows);
 
-    test('Exec', async () => {
+    // TODO: Re-enable this test once the flakiness on Windows is resolved
+    test('Exec', async function () {
+        if (process.platform === 'win32') {
+            return this.skip();
+        }
         const file = path.join(
             EXTENSION_ROOT_DIR_FOR_TESTS,
             'src',
diff --git a/src/test/smoke/smartSend.smoke.test.ts b/src/test/smoke/smartSend.smoke.test.ts
index dc1f07f047e7..80eabf356330 100644
--- a/src/test/smoke/smartSend.smoke.test.ts
+++ b/src/test/smoke/smartSend.smoke.test.ts
@@ -19,7 +19,11 @@ suite('Smoke Test: Run Smart Selection and Advance Cursor', async () => {
     suiteTeardown(closeActiveWindows);
     teardown(closeActiveWindows);
 
-    test('Smart Send', async () => {
+    // TODO: Re-enable this test once the flakiness on Windows is resolved
+    test('Smart Send', async function () {
+        if (process.platform === 'win32') {
+            return this.skip();
+        }
         const file = path.join(
             EXTENSION_ROOT_DIR_FOR_TESTS,
             'src',

From f96d91041e1dc5e028a166d59d451d32037ce7f6 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Fri, 28 Nov 2025 19:13:55 -0800
Subject: [PATCH 102/178] Refactor pytest and unittest test discovery (#25599)

cleanup to assist with future changes

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
---
 .../testController/common/discoveryHelpers.ts | 137 ++++++++
 .../pytest/pytestDiscoveryAdapter.ts          | 328 ++++++++----------
 .../testController/pytest/pytestHelpers.ts    |  58 ++++
 .../unittest/testDiscoveryAdapter.ts          | 309 ++++++++---------
 .../unittest/unittestHelpers.ts               |  28 ++
 5 files changed, 524 insertions(+), 336 deletions(-)
 create mode 100644 src/client/testing/testController/common/discoveryHelpers.ts
 create mode 100644 src/client/testing/testController/pytest/pytestHelpers.ts
 create mode 100644 src/client/testing/testController/unittest/unittestHelpers.ts

diff --git a/src/client/testing/testController/common/discoveryHelpers.ts b/src/client/testing/testController/common/discoveryHelpers.ts
new file mode 100644
index 000000000000..e170ad576ae8
--- /dev/null
+++ b/src/client/testing/testController/common/discoveryHelpers.ts
@@ -0,0 +1,137 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+import { CancellationToken, CancellationTokenSource, Disposable, Uri } from 'vscode';
+import { Deferred } from '../../../common/utils/async';
+import { traceError, traceInfo, traceVerbose } from '../../../logging';
+import { createDiscoveryErrorPayload, fixLogLinesNoTrailing, startDiscoveryNamedPipe } from './utils';
+import { DiscoveredTestPayload, ITestResultResolver } from './types';
+
+/**
+ * Test provider type for logging purposes.
+ */
+export type TestProvider = 'pytest' | 'unittest';
+
+/**
+ * Sets up the discovery named pipe and wires up cancellation.
+ * @param resultResolver The resolver to handle discovered test data
+ * @param token Optional cancellation token from the caller
+ * @param uri Workspace URI for logging
+ * @returns Object containing the pipe name, cancellation source, and disposable for the external token handler
+ */
+export async function setupDiscoveryPipe(
+    resultResolver: ITestResultResolver | undefined,
+    token: CancellationToken | undefined,
+    uri: Uri,
+): Promise<{ pipeName: string; cancellation: CancellationTokenSource; tokenDisposable: Disposable | undefined }> {
+    const discoveryPipeCancellation = new CancellationTokenSource();
+
+    // Wire up cancellation from external token and store the disposable
+    const tokenDisposable = token?.onCancellationRequested(() => {
+        traceInfo(`Test discovery cancelled.`);
+        discoveryPipeCancellation.cancel();
+    });
+
+    // Start the named pipe with the discovery listener
+    const discoveryPipeName = await startDiscoveryNamedPipe((data: DiscoveredTestPayload) => {
+        if (!token?.isCancellationRequested) {
+            resultResolver?.resolveDiscovery(data);
+        }
+    }, discoveryPipeCancellation.token);
+
+    traceVerbose(`Created discovery pipe: ${discoveryPipeName} for workspace ${uri.fsPath}`);
+
+    return {
+        pipeName: discoveryPipeName,
+        cancellation: discoveryPipeCancellation,
+        tokenDisposable,
+    };
+}
+
+/**
+ * Creates standard process event handlers for test discovery subprocess.
+ * Handles stdout/stderr logging and error reporting on process exit.
+ *
+ * @param testProvider - The test framework being used ('pytest' or 'unittest')
+ * @param uri - The workspace URI
+ * @param cwd - The current working directory
+ * @param resultResolver - Resolver for test discovery results
+ * @param deferredTillExecClose - Deferred to resolve when process closes
+ * @param allowedSuccessCodes - Additional exit codes to treat as success (e.g., pytest exit code 5 for no tests found)
+ */
+export function createProcessHandlers(
+    testProvider: TestProvider,
+    uri: Uri,
+    cwd: string,
+    resultResolver: ITestResultResolver | undefined,
+    deferredTillExecClose: Deferred<void>,
+    allowedSuccessCodes: number[] = [],
+): {
+    onStdout: (data: any) => void;
+    onStderr: (data: any) => void;
+    onExit: (code: number | null, signal: NodeJS.Signals | null) => void;
+    onClose: (code: number | null, signal: NodeJS.Signals | null) => void;
+} {
+    const isSuccessCode = (code: number | null): boolean => {
+        return code === 0 || (code !== null && allowedSuccessCodes.includes(code));
+    };
+
+    return {
+        onStdout: (data: any) => {
+            const out = fixLogLinesNoTrailing(data.toString());
+            traceInfo(out);
+        },
+        onStderr: (data: any) => {
+            const out = fixLogLinesNoTrailing(data.toString());
+            traceError(out);
+        },
+        onExit: (code: number | null, _signal: NodeJS.Signals | null) => {
+            // The 'exit' event fires when the process terminates, but streams may still be open.
+            // Only log verbose success message here; error handling happens in onClose.
+            if (isSuccessCode(code)) {
+                traceVerbose(`${testProvider} discovery subprocess exited successfully for workspace ${uri.fsPath}`);
+            }
+        },
+        onClose: (code: number | null, signal: NodeJS.Signals | null) => {
+            // We resolve the deferred here to ensure all output has been captured.
+            if (!isSuccessCode(code)) {
+                traceError(
+                    `${testProvider} discovery failed with exit code ${code} and signal ${signal} for workspace ${uri.fsPath}. Creating error payload.`,
+                );
+                resultResolver?.resolveDiscovery(createDiscoveryErrorPayload(code, signal, cwd));
+            } else {
+                traceVerbose(`${testProvider} discovery subprocess streams closed for workspace ${uri.fsPath}`);
+            }
+            deferredTillExecClose?.resolve();
+        },
+    };
+}
+
+/**
+ * Handles cleanup when test discovery is cancelled.
+ * Kills the subprocess (if running), resolves the completion deferred, and cancels the discovery pipe.
+ *
+ * @param testProvider - The test framework being used ('pytest' or 'unittest')
+ * @param proc - The process to kill
+ * @param processCompletion - Deferred to resolve
+ * @param pipeCancellation - Cancellation token source to cancel
+ * @param uri - The workspace URI
+ */
+export function cleanupOnCancellation(
+    testProvider: TestProvider,
+    proc: { kill: () => void } | undefined,
+    processCompletion: Deferred<void>,
+    pipeCancellation: CancellationTokenSource,
+    uri: Uri,
+): void {
+    traceInfo(`Test discovery cancelled, killing ${testProvider} subprocess for workspace ${uri.fsPath}`);
+    if (proc) {
+        traceVerbose(`Killing ${testProvider} subprocess for workspace ${uri.fsPath}`);
+        proc.kill();
+    } else {
+        traceVerbose(`No ${testProvider} subprocess to kill for workspace ${uri.fsPath} (proc is undefined)`);
+    }
+    traceVerbose(`Resolving process completion deferred for ${testProvider} discovery in workspace ${uri.fsPath}`);
+    processCompletion.resolve();
+    traceVerbose(`Cancelling discovery pipe for ${testProvider} discovery in workspace ${uri.fsPath}`);
+    pipeCancellation.cancel();
+}
diff --git a/src/client/testing/testController/pytest/pytestDiscoveryAdapter.ts b/src/client/testing/testController/pytest/pytestDiscoveryAdapter.ts
index 308c9ba1f9bc..7ad69c71fa0e 100644
--- a/src/client/testing/testController/pytest/pytestDiscoveryAdapter.ts
+++ b/src/client/testing/testController/pytest/pytestDiscoveryAdapter.ts
@@ -1,8 +1,7 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 import * as path from 'path';
-import { CancellationToken, CancellationTokenSource, Uri } from 'vscode';
-import * as fs from 'fs';
+import { CancellationToken, Disposable, Uri } from 'vscode';
 import { ChildProcess } from 'child_process';
 import {
     ExecutionFactoryCreateWithEnvironmentOptions,
@@ -10,24 +9,37 @@ import {
     SpawnOptions,
 } from '../../../common/process/types';
 import { IConfigurationService } from '../../../common/types';
-import { createDeferred, Deferred } from '../../../common/utils/async';
+import { Deferred } from '../../../common/utils/async';
 import { EXTENSION_ROOT_DIR } from '../../../constants';
-import { traceError, traceInfo, traceVerbose, traceWarn } from '../../../logging';
-import { DiscoveredTestPayload, ITestDiscoveryAdapter, ITestResultResolver } from '../common/types';
-import {
-    createDiscoveryErrorPayload,
-    createTestingDeferred,
-    fixLogLinesNoTrailing,
-    startDiscoveryNamedPipe,
-    addValueIfKeyNotExist,
-    hasSymlinkParent,
-} from '../common/utils';
+import { traceError, traceInfo, traceVerbose } from '../../../logging';
+import { ITestDiscoveryAdapter, ITestResultResolver } from '../common/types';
+import { createTestingDeferred } from '../common/utils';
 import { IEnvironmentVariablesProvider } from '../../../common/variables/types';
 import { PythonEnvironment } from '../../../pythonEnvironments/info';
 import { useEnvExtension, getEnvironment, runInBackground } from '../../../envExt/api.internal';
+import { buildPytestEnv as configureSubprocessEnv, handleSymlinkAndRootDir } from './pytestHelpers';
+import { cleanupOnCancellation, createProcessHandlers, setupDiscoveryPipe } from '../common/discoveryHelpers';
+
+/**
+ * Configures the subprocess environment for pytest discovery.
+ * @param envVarsService Service to retrieve environment variables
+ * @param uri Workspace URI
+ * @param discoveryPipeName Name of the discovery pipe to pass to the subprocess
+ * @returns Configured environment variables for the subprocess
+ */
+async function configureDiscoveryEnv(
+    envVarsService: IEnvironmentVariablesProvider | undefined,
+    uri: Uri,
+    discoveryPipeName: string,
+): Promise<NodeJS.ProcessEnv> {
+    const fullPluginPath = path.join(EXTENSION_ROOT_DIR, 'python_files');
+    const envVars = await envVarsService?.getEnvironmentVariables(uri);
+    const mutableEnv = configureSubprocessEnv(envVars, fullPluginPath, discoveryPipeName);
+    return mutableEnv;
+}
 
 /**
- * Wrapper class for unittest test discovery. This is where we call `runTestCommand`. #this seems incorrectly copied
+ * Wrapper class for pytest test discovery. This is where we call the pytest subprocess.
  */
 export class PytestTestDiscoveryAdapter implements ITestDiscoveryAdapter {
     constructor(
@@ -42,185 +54,153 @@ export class PytestTestDiscoveryAdapter implements ITestDiscoveryAdapter {
         token?: CancellationToken,
         interpreter?: PythonEnvironment,
     ): Promise<void> {
-        const cSource = new CancellationTokenSource();
-        const deferredReturn = createDeferred<void>();
-
-        token?.onCancellationRequested(() => {
-            traceInfo(`Test discovery cancelled.`);
-            cSource.cancel();
-            deferredReturn.resolve();
-        });
-
-        const name = await startDiscoveryNamedPipe((data: DiscoveredTestPayload) => {
-            // if the token is cancelled, we don't want process the data
-            if (!token?.isCancellationRequested) {
-                this.resultResolver?.resolveDiscovery(data);
-            }
-        }, cSource.token);
-
-        this.runPytestDiscovery(uri, name, cSource, executionFactory, interpreter, token).then(() => {
-            deferredReturn.resolve();
-        });
+        // Setup discovery pipe and cancellation
+        const {
+            pipeName: discoveryPipeName,
+            cancellation: discoveryPipeCancellation,
+            tokenDisposable,
+        } = await setupDiscoveryPipe(this.resultResolver, token, uri);
+
+        // Setup process handlers deferred (used by both execution paths)
+        const deferredTillExecClose: Deferred<void> = createTestingDeferred();
 
-        return deferredReturn.promise;
-    }
+        // Collect all disposables related to discovery to handle cleanup in finally block
+        const disposables: Disposable[] = [];
+        if (tokenDisposable) {
+            disposables.push(tokenDisposable);
+        }
 
-    async runPytestDiscovery(
-        uri: Uri,
-        discoveryPipeName: string,
-        cSource: CancellationTokenSource,
-        executionFactory: IPythonExecutionFactory,
-        interpreter?: PythonEnvironment,
-        token?: CancellationToken,
-    ): Promise<void> {
-        const relativePathToPytest = 'python_files';
-        const fullPluginPath = path.join(EXTENSION_ROOT_DIR, relativePathToPytest);
-        const settings = this.configSettings.getSettings(uri);
-        let { pytestArgs } = settings.testing;
-        const cwd = settings.testing.cwd && settings.testing.cwd.length > 0 ? settings.testing.cwd : uri.fsPath;
-
-        // check for symbolic path
-        const stats = await fs.promises.lstat(cwd);
-        const resolvedPath = await fs.promises.realpath(cwd);
-        let isSymbolicLink = false;
-        if (stats.isSymbolicLink()) {
-            isSymbolicLink = true;
-            traceWarn('The cwd is a symbolic link.');
-        } else if (resolvedPath !== cwd) {
-            traceWarn(
-                'The cwd resolves to a different path, checking if it has a symbolic link somewhere in its path.',
+        try {
+            // Build pytest command and arguments
+            const settings = this.configSettings.getSettings(uri);
+            let { pytestArgs } = settings.testing;
+            const cwd = settings.testing.cwd && settings.testing.cwd.length > 0 ? settings.testing.cwd : uri.fsPath;
+            pytestArgs = await handleSymlinkAndRootDir(cwd, pytestArgs);
+            const commandArgs = ['-m', 'pytest', '-p', 'vscode_pytest', '--collect-only'].concat(pytestArgs);
+            traceVerbose(
+                `Running pytest discovery with command: ${commandArgs.join(' ')} for workspace ${uri.fsPath}.`,
             );
-            isSymbolicLink = await hasSymlinkParent(cwd);
-        }
-        if (isSymbolicLink) {
-            traceWarn("Symlink found, adding '--rootdir' to pytestArgs only if it doesn't already exist. cwd: ", cwd);
-            pytestArgs = addValueIfKeyNotExist(pytestArgs, '--rootdir', cwd);
-        }
-        // if user has provided `--rootdir` then use that, otherwise add `cwd`
-        // root dir is required so pytest can find the relative paths and for symlinks
-        addValueIfKeyNotExist(pytestArgs, '--rootdir', cwd);
-
-        // get and edit env vars
-        const mutableEnv = {
-            ...(await this.envVarsService?.getEnvironmentVariables(uri)),
-        };
-        // get python path from mutable env, it contains process.env as well
-        const pythonPathParts: string[] = mutableEnv.PYTHONPATH?.split(path.delimiter) ?? [];
-        const pythonPathCommand = [fullPluginPath, ...pythonPathParts].join(path.delimiter);
-        mutableEnv.PYTHONPATH = pythonPathCommand;
-        mutableEnv.TEST_RUN_PIPE = discoveryPipeName;
-        traceInfo(
-            `Environment variables set for pytest discovery: PYTHONPATH=${mutableEnv.PYTHONPATH}, TEST_RUN_PIPE=${mutableEnv.TEST_RUN_PIPE}`,
-        );
-
-        // delete UUID following entire discovery finishing.
-        const execArgs = ['-m', 'pytest', '-p', 'vscode_pytest', '--collect-only'].concat(pytestArgs);
-        traceVerbose(`Running pytest discovery with command: ${execArgs.join(' ')} for workspace ${uri.fsPath}.`);
-
-        if (useEnvExtension()) {
-            const pythonEnv = await getEnvironment(uri);
-            if (pythonEnv) {
-                const deferredTillExecClose: Deferred<void> = createTestingDeferred();
+
+            // Configure subprocess environment
+            const mutableEnv = await configureDiscoveryEnv(this.envVarsService, uri, discoveryPipeName);
+
+            // Setup process handlers (shared by both execution paths)
+            const handlers = createProcessHandlers('pytest', uri, cwd, this.resultResolver, deferredTillExecClose, [5]);
+
+            // Execute using environment extension if available
+            if (useEnvExtension()) {
+                traceInfo(`Using environment extension for pytest discovery in workspace ${uri.fsPath}`);
+                const pythonEnv = await getEnvironment(uri);
+                if (!pythonEnv) {
+                    traceError(
+                        `Python environment not found for workspace ${uri.fsPath}. Cannot proceed with test discovery.`,
+                    );
+                    deferredTillExecClose.resolve();
+                    return;
+                }
+                traceVerbose(`Using Python environment: ${JSON.stringify(pythonEnv)}`);
 
                 const proc = await runInBackground(pythonEnv, {
                     cwd,
-                    args: execArgs,
+                    args: commandArgs,
                     env: (mutableEnv as unknown) as { [key: string]: string },
                 });
-                token?.onCancellationRequested(() => {
-                    traceInfo(`Test discovery cancelled, killing pytest subprocess for workspace ${uri.fsPath}`);
-                    proc.kill();
-                    deferredTillExecClose.resolve();
-                    cSource.cancel();
-                });
-                proc.stdout.on('data', (data) => {
-                    const out = fixLogLinesNoTrailing(data.toString());
-                    traceInfo(out);
-                });
-                proc.stderr.on('data', (data) => {
-                    const out = fixLogLinesNoTrailing(data.toString());
-                    traceError(out);
+                traceInfo(`Started pytest discovery subprocess (environment extension) for workspace ${uri.fsPath}`);
+
+                // Wire up cancellation and process events
+                const envExtCancellationHandler = token?.onCancellationRequested(() => {
+                    cleanupOnCancellation('pytest', proc, deferredTillExecClose, discoveryPipeCancellation, uri);
                 });
+                if (envExtCancellationHandler) {
+                    disposables.push(envExtCancellationHandler);
+                }
+                proc.stdout.on('data', handlers.onStdout);
+                proc.stderr.on('data', handlers.onStderr);
                 proc.onExit((code, signal) => {
-                    if (code !== 0) {
-                        traceError(
-                            `Subprocess exited unsuccessfully with exit code ${code} and signal ${signal} on workspace ${uri.fsPath}`,
-                        );
-                        this.resultResolver?.resolveDiscovery(createDiscoveryErrorPayload(code, signal, cwd));
-                    }
-                    deferredTillExecClose.resolve();
+                    handlers.onExit(code, signal);
+                    handlers.onClose(code, signal);
                 });
+
                 await deferredTillExecClose.promise;
-            } else {
-                traceError(`Python Environment not found for: ${uri.fsPath}`);
+                traceInfo(`Pytest discovery completed for workspace ${uri.fsPath}`);
+                return;
             }
-            return;
-        }
-
-        const spawnOptions: SpawnOptions = {
-            cwd,
-            throwOnStdErr: true,
-            env: mutableEnv,
-            token,
-        };
 
-        // Create the Python environment in which to execute the command.
-        const creationOptions: ExecutionFactoryCreateWithEnvironmentOptions = {
-            allowEnvironmentFetchExceptions: false,
-            resource: uri,
-            interpreter,
-        };
-        const execService = await executionFactory.createActivatedEnvironment(creationOptions);
+            // Execute using execution factory (fallback path)
+            traceInfo(`Using execution factory for pytest discovery in workspace ${uri.fsPath}`);
+            const creationOptions: ExecutionFactoryCreateWithEnvironmentOptions = {
+                allowEnvironmentFetchExceptions: false,
+                resource: uri,
+                interpreter,
+            };
+            const execService = await executionFactory.createActivatedEnvironment(creationOptions);
+            if (!execService) {
+                traceError(
+                    `Failed to create execution service for workspace ${uri.fsPath}. Cannot proceed with test discovery.`,
+                );
+                deferredTillExecClose.resolve();
+                return;
+            }
+            const execInfo = await execService.getExecutablePath();
+            traceVerbose(`Using Python executable: ${execInfo} for workspace ${uri.fsPath}`);
 
-        const execInfo = await execService?.getExecutablePath();
-        traceVerbose(`Executable path for pytest discovery: ${execInfo}.`);
+            // Check for cancellation before spawning process
+            if (token?.isCancellationRequested) {
+                traceInfo(`Pytest discovery cancelled before spawning process for workspace ${uri.fsPath}`);
+                deferredTillExecClose.resolve();
+                return;
+            }
 
-        const deferredTillExecClose: Deferred<void> = createTestingDeferred();
+            const spawnOptions: SpawnOptions = {
+                cwd,
+                throwOnStdErr: true,
+                env: mutableEnv,
+                token,
+            };
+
+            let resultProc: ChildProcess | undefined;
+
+            // Set up cancellation handler after all early return checks
+            const cancellationHandler = token?.onCancellationRequested(() => {
+                traceInfo(`Cancellation requested during pytest discovery for workspace ${uri.fsPath}`);
+                cleanupOnCancellation('pytest', resultProc, deferredTillExecClose, discoveryPipeCancellation, uri);
+            });
+            if (cancellationHandler) {
+                disposables.push(cancellationHandler);
+            }
 
-        let resultProc: ChildProcess | undefined;
+            try {
+                const result = execService.execObservable(commandArgs, spawnOptions);
+                resultProc = result?.proc;
 
-        token?.onCancellationRequested(() => {
-            traceInfo(`Test discovery cancelled, killing pytest subprocess for workspace ${uri.fsPath}`);
-            // if the resultProc exists just call kill on it which will handle resolving the ExecClose deferred, otherwise resolve the deferred here.
-            if (resultProc) {
-                resultProc?.kill();
-            } else {
+                if (!resultProc) {
+                    traceError(`Failed to spawn pytest discovery subprocess for workspace ${uri.fsPath}`);
+                    deferredTillExecClose.resolve();
+                    return;
+                }
+                traceInfo(`Started pytest discovery subprocess (execution factory) for workspace ${uri.fsPath}`);
+            } catch (error) {
+                traceError(`Error spawning pytest discovery subprocess for workspace ${uri.fsPath}: ${error}`);
                 deferredTillExecClose.resolve();
-                cSource.cancel();
+                throw error;
             }
-        });
-        const result = execService?.execObservable(execArgs, spawnOptions);
-        resultProc = result?.proc;
-
-        // Take all output from the subprocess and add it to the test output channel. This will be the pytest output.
-        // Displays output to user and ensure the subprocess doesn't run into buffer overflow.
-
-        result?.proc?.stdout?.on('data', (data) => {
-            const out = fixLogLinesNoTrailing(data.toString());
-            traceInfo(out);
-        });
-        result?.proc?.stderr?.on('data', (data) => {
-            const out = fixLogLinesNoTrailing(data.toString());
-            traceError(out);
-        });
-        result?.proc?.on('exit', (code, signal) => {
-            if (code !== 0) {
-                traceError(
-                    `Subprocess exited unsuccessfully with exit code ${code} and signal ${signal} on workspace ${uri.fsPath}.`,
-                );
-            }
-        });
-        result?.proc?.on('close', (code, signal) => {
-            // pytest exits with code of 5 when 0 tests are found- this is not a failure for discovery.
-            if (code !== 0 && code !== 5) {
-                traceError(
-                    `Subprocess exited unsuccessfully with exit code ${code} and signal ${signal} on workspace ${uri.fsPath}. Creating and sending error discovery payload`,
-                );
-                this.resultResolver?.resolveDiscovery(createDiscoveryErrorPayload(code, signal, cwd));
-            }
-            // due to the sync reading of the output.
-            deferredTillExecClose?.resolve();
-        });
-        await deferredTillExecClose.promise;
+            resultProc.stdout?.on('data', handlers.onStdout);
+            resultProc.stderr?.on('data', handlers.onStderr);
+            resultProc.on('exit', handlers.onExit);
+            resultProc.on('close', handlers.onClose);
+
+            traceVerbose(`Waiting for pytest discovery subprocess to complete for workspace ${uri.fsPath}`);
+            await deferredTillExecClose.promise;
+            traceInfo(`Pytest discovery completed for workspace ${uri.fsPath}`);
+        } catch (error) {
+            traceError(`Error during pytest discovery for workspace ${uri.fsPath}: ${error}`);
+            deferredTillExecClose.resolve();
+            throw error;
+        } finally {
+            // Dispose all cancellation handlers and event subscriptions
+            disposables.forEach((d) => d.dispose());
+            // Dispose the discovery pipe cancellation token
+            discoveryPipeCancellation.dispose();
+        }
     }
 }
diff --git a/src/client/testing/testController/pytest/pytestHelpers.ts b/src/client/testing/testController/pytest/pytestHelpers.ts
new file mode 100644
index 000000000000..c6e748fb85a7
--- /dev/null
+++ b/src/client/testing/testController/pytest/pytestHelpers.ts
@@ -0,0 +1,58 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+import * as path from 'path';
+import * as fs from 'fs';
+import { traceInfo, traceWarn } from '../../../logging';
+import { addValueIfKeyNotExist, hasSymlinkParent } from '../common/utils';
+
+/**
+ * Checks if the current working directory contains a symlink and ensures --rootdir is set in pytest args.
+ * This is required for pytest to correctly resolve relative paths in symlinked directories.
+ */
+export async function handleSymlinkAndRootDir(cwd: string, pytestArgs: string[]): Promise<string[]> {
+    const stats = await fs.promises.lstat(cwd);
+    const resolvedPath = await fs.promises.realpath(cwd);
+    let isSymbolicLink = false;
+    if (stats.isSymbolicLink()) {
+        isSymbolicLink = true;
+        traceWarn(`Working directory is a symbolic link: ${cwd} -> ${resolvedPath}`);
+    } else if (resolvedPath !== cwd) {
+        traceWarn(
+            `Working directory resolves to different path: ${cwd} -> ${resolvedPath}. Checking for symlinks in parent directories.`,
+        );
+        isSymbolicLink = await hasSymlinkParent(cwd);
+    }
+    if (isSymbolicLink) {
+        traceWarn(
+            `Symlink detected in path. Adding '--rootdir=${cwd}' to pytest args to ensure correct path resolution.`,
+        );
+        pytestArgs = addValueIfKeyNotExist(pytestArgs, '--rootdir', cwd);
+    }
+    // if user has provided `--rootdir` then use that, otherwise add `cwd`
+    // root dir is required so pytest can find the relative paths and for symlinks
+    pytestArgs = addValueIfKeyNotExist(pytestArgs, '--rootdir', cwd);
+    return pytestArgs;
+}
+
+/**
+ * Builds the environment variables required for pytest discovery.
+ * Sets PYTHONPATH to include the plugin path and TEST_RUN_PIPE for communication.
+ */
+export function buildPytestEnv(
+    envVars: { [key: string]: string | undefined } | undefined,
+    fullPluginPath: string,
+    discoveryPipeName: string,
+): { [key: string]: string | undefined } {
+    const mutableEnv = {
+        ...envVars,
+    };
+    // get python path from mutable env, it contains process.env as well
+    const pythonPathParts: string[] = mutableEnv.PYTHONPATH?.split(path.delimiter) ?? [];
+    const pythonPathCommand = [fullPluginPath, ...pythonPathParts].join(path.delimiter);
+    mutableEnv.PYTHONPATH = pythonPathCommand;
+    mutableEnv.TEST_RUN_PIPE = discoveryPipeName;
+    traceInfo(
+        `Environment variables set for pytest discovery: PYTHONPATH=${mutableEnv.PYTHONPATH}, TEST_RUN_PIPE=${mutableEnv.TEST_RUN_PIPE}`,
+    );
+    return mutableEnv;
+}
diff --git a/src/client/testing/testController/unittest/testDiscoveryAdapter.ts b/src/client/testing/testController/unittest/testDiscoveryAdapter.ts
index a40e25153fbc..7c986e95a449 100644
--- a/src/client/testing/testController/unittest/testDiscoveryAdapter.ts
+++ b/src/client/testing/testController/unittest/testDiscoveryAdapter.ts
@@ -1,33 +1,43 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 
-import * as path from 'path';
-import { CancellationTokenSource, Uri } from 'vscode';
-import { CancellationToken } from 'vscode-jsonrpc';
+import { CancellationToken, Disposable, Uri } from 'vscode';
 import { ChildProcess } from 'child_process';
 import { IConfigurationService } from '../../../common/types';
 import { EXTENSION_ROOT_DIR } from '../../../constants';
-import {
-    DiscoveredTestPayload,
-    ITestDiscoveryAdapter,
-    ITestResultResolver,
-    TestCommandOptions,
-    TestDiscoveryCommand,
-} from '../common/types';
-import { createDeferred } from '../../../common/utils/async';
-import { EnvironmentVariables, IEnvironmentVariablesProvider } from '../../../common/variables/types';
+import { ITestDiscoveryAdapter, ITestResultResolver } from '../common/types';
+import { IEnvironmentVariablesProvider } from '../../../common/variables/types';
 import {
     ExecutionFactoryCreateWithEnvironmentOptions,
-    ExecutionResult,
     IPythonExecutionFactory,
     SpawnOptions,
 } from '../../../common/process/types';
-import { createDiscoveryErrorPayload, fixLogLinesNoTrailing, startDiscoveryNamedPipe } from '../common/utils';
-import { traceError, traceInfo, traceLog, traceVerbose } from '../../../logging';
+import { traceError, traceInfo, traceVerbose } from '../../../logging';
 import { getEnvironment, runInBackground, useEnvExtension } from '../../../envExt/api.internal';
+import { PythonEnvironment } from '../../../pythonEnvironments/info';
+import { createTestingDeferred } from '../common/utils';
+import { buildDiscoveryCommand, buildUnittestEnv as configureSubprocessEnv } from './unittestHelpers';
+import { cleanupOnCancellation, createProcessHandlers, setupDiscoveryPipe } from '../common/discoveryHelpers';
 
 /**
- * Wrapper class for unittest test discovery. This is where we call `runTestCommand`.
+ * Configures the subprocess environment for unittest discovery.
+ * @param envVarsService Service to retrieve environment variables
+ * @param uri Workspace URI
+ * @param discoveryPipeName Name of the discovery pipe to pass to the subprocess
+ * @returns Configured environment variables for the subprocess
+ */
+async function configureDiscoveryEnv(
+    envVarsService: IEnvironmentVariablesProvider | undefined,
+    uri: Uri,
+    discoveryPipeName: string,
+): Promise<NodeJS.ProcessEnv> {
+    const envVars = await envVarsService?.getEnvironmentVariables(uri);
+    const mutableEnv = configureSubprocessEnv(envVars, discoveryPipeName);
+    return mutableEnv;
+}
+
+/**
+ * Wrapper class for unittest test discovery.
  */
 export class UnittestTestDiscoveryAdapter implements ITestDiscoveryAdapter {
     constructor(
@@ -36,181 +46,156 @@ export class UnittestTestDiscoveryAdapter implements ITestDiscoveryAdapter {
         private readonly envVarsService?: IEnvironmentVariablesProvider,
     ) {}
 
-    public async discoverTests(
+    async discoverTests(
         uri: Uri,
         executionFactory: IPythonExecutionFactory,
         token?: CancellationToken,
+        interpreter?: PythonEnvironment,
     ): Promise<void> {
-        const settings = this.configSettings.getSettings(uri);
-        const { unittestArgs } = settings.testing;
-        const cwd = settings.testing.cwd && settings.testing.cwd.length > 0 ? settings.testing.cwd : uri.fsPath;
-
-        const cSource = new CancellationTokenSource();
-        // Create a deferred to return to the caller
-        const deferredReturn = createDeferred<void>();
-
-        token?.onCancellationRequested(() => {
-            traceInfo(`Test discovery cancelled.`);
-            cSource.cancel();
-            deferredReturn.resolve();
-        });
-
-        const name = await startDiscoveryNamedPipe((data: DiscoveredTestPayload) => {
-            if (!token?.isCancellationRequested) {
-                this.resultResolver?.resolveDiscovery(data);
-            }
-        }, cSource.token);
-
-        // set up env with the pipe name
-        let env: EnvironmentVariables | undefined = await this.envVarsService?.getEnvironmentVariables(uri);
-        if (env === undefined) {
-            env = {} as EnvironmentVariables;
-        }
-        env.TEST_RUN_PIPE = name;
-
-        const command = buildDiscoveryCommand(unittestArgs);
-        const options: TestCommandOptions = {
-            workspaceFolder: uri,
-            command,
-            cwd,
-            token,
-        };
-
-        this.runDiscovery(uri, options, name, cwd, cSource, executionFactory).then(() => {
-            deferredReturn.resolve();
-        });
-
-        return deferredReturn.promise;
-    }
-
-    async runDiscovery(
-        uri: Uri,
-        options: TestCommandOptions,
-        testRunPipeName: string,
-        cwd: string,
-        cSource: CancellationTokenSource,
-        executionFactory: IPythonExecutionFactory,
-    ): Promise<void> {
-        // get and edit env vars
-        const mutableEnv = {
-            ...(await this.envVarsService?.getEnvironmentVariables(uri)),
-        };
-        mutableEnv.TEST_RUN_PIPE = testRunPipeName;
-        const args = [options.command.script].concat(options.command.args);
-
-        if (options.outChannel) {
-            options.outChannel.appendLine(`python ${args.join(' ')}`);
+        // Setup discovery pipe and cancellation
+        const {
+            pipeName: discoveryPipeName,
+            cancellation: discoveryPipeCancellation,
+            tokenDisposable,
+        } = await setupDiscoveryPipe(this.resultResolver, token, uri);
+
+        // Setup process handlers deferred (used by both execution paths)
+        const deferredTillExecClose = createTestingDeferred();
+
+        // Collect all disposables for cleanup in finally block
+        const disposables: Disposable[] = [];
+        if (tokenDisposable) {
+            disposables.push(tokenDisposable);
         }
-
-        if (useEnvExtension()) {
-            const pythonEnv = await getEnvironment(uri);
-            if (pythonEnv) {
-                const deferredTillExecClose = createDeferred();
+        try {
+            // Build unittest command and arguments
+            const settings = this.configSettings.getSettings(uri);
+            const { unittestArgs } = settings.testing;
+            const cwd = settings.testing.cwd && settings.testing.cwd.length > 0 ? settings.testing.cwd : uri.fsPath;
+            const execArgs = buildDiscoveryCommand(unittestArgs, EXTENSION_ROOT_DIR);
+            traceVerbose(`Running unittest discovery with command: ${execArgs.join(' ')} for workspace ${uri.fsPath}.`);
+
+            // Configure subprocess environment
+            const mutableEnv = await configureDiscoveryEnv(this.envVarsService, uri, discoveryPipeName);
+
+            // Setup process handlers (shared by both execution paths)
+            const handlers = createProcessHandlers('unittest', uri, cwd, this.resultResolver, deferredTillExecClose);
+
+            // Execute using environment extension if available
+            if (useEnvExtension()) {
+                traceInfo(`Using environment extension for unittest discovery in workspace ${uri.fsPath}`);
+                const pythonEnv = await getEnvironment(uri);
+                if (!pythonEnv) {
+                    traceError(
+                        `Python environment not found for workspace ${uri.fsPath}. Cannot proceed with test discovery.`,
+                    );
+                    deferredTillExecClose.resolve();
+                    return;
+                }
+                traceVerbose(`Using Python environment: ${JSON.stringify(pythonEnv)}`);
 
                 const proc = await runInBackground(pythonEnv, {
                     cwd,
-                    args,
+                    args: execArgs,
                     env: (mutableEnv as unknown) as { [key: string]: string },
                 });
-                options.token?.onCancellationRequested(() => {
-                    traceInfo(`Test discovery cancelled, killing unittest subprocess for workspace ${uri.fsPath}`);
-                    proc.kill();
-                    deferredTillExecClose.resolve();
-                    cSource.cancel();
-                });
-                proc.stdout.on('data', (data) => {
-                    const out = fixLogLinesNoTrailing(data.toString());
-                    traceInfo(out);
-                });
-                proc.stderr.on('data', (data) => {
-                    const out = fixLogLinesNoTrailing(data.toString());
-                    traceError(out);
+                traceInfo(`Started unittest discovery subprocess (environment extension) for workspace ${uri.fsPath}`);
+
+                // Wire up cancellation and process events
+                const envExtCancellationHandler = token?.onCancellationRequested(() => {
+                    cleanupOnCancellation('unittest', proc, deferredTillExecClose, discoveryPipeCancellation, uri);
                 });
+                if (envExtCancellationHandler) {
+                    disposables.push(envExtCancellationHandler);
+                }
+                proc.stdout.on('data', handlers.onStdout);
+                proc.stderr.on('data', handlers.onStderr);
                 proc.onExit((code, signal) => {
-                    if (code !== 0) {
-                        traceError(
-                            `Subprocess exited unsuccessfully with exit code ${code} and signal ${signal} on workspace ${uri.fsPath}`,
-                        );
-                    }
-                    deferredTillExecClose.resolve();
+                    handlers.onExit(code, signal);
+                    handlers.onClose(code, signal);
                 });
+
                 await deferredTillExecClose.promise;
-            } else {
-                traceError(`Python Environment not found for: ${uri.fsPath}`);
+                traceInfo(`Unittest discovery completed for workspace ${uri.fsPath}`);
+                return;
             }
-            return;
-        }
 
-        const spawnOptions: SpawnOptions = {
-            token: options.token,
-            cwd: options.cwd,
-            throwOnStdErr: true,
-            env: mutableEnv,
-        };
-
-        try {
-            traceLog(`Discovering unittest tests for workspace ${options.cwd} with arguments: ${args}\r\n`);
-            const deferredTillExecClose = createDeferred<ExecutionResult<string>>();
-
-            // Create the Python environment in which to execute the command.
+            // Execute using execution factory (fallback path)
+            traceInfo(`Using execution factory for unittest discovery in workspace ${uri.fsPath}`);
             const creationOptions: ExecutionFactoryCreateWithEnvironmentOptions = {
                 allowEnvironmentFetchExceptions: false,
-                resource: options.workspaceFolder,
+                resource: uri,
+                interpreter,
             };
             const execService = await executionFactory.createActivatedEnvironment(creationOptions);
-            const execInfo = await execService?.getExecutablePath();
-            traceVerbose(`Executable path for unittest discovery: ${execInfo}.`);
+            if (!execService) {
+                traceError(
+                    `Failed to create execution service for workspace ${uri.fsPath}. Cannot proceed with test discovery.`,
+                );
+                deferredTillExecClose.resolve();
+                return;
+            }
+            const execInfo = await execService.getExecutablePath();
+            traceVerbose(`Using Python executable: ${execInfo} for workspace ${uri.fsPath}`);
+
+            // Check for cancellation before spawning process
+            if (token?.isCancellationRequested) {
+                traceInfo(`Unittest discovery cancelled before spawning process for workspace ${uri.fsPath}`);
+                deferredTillExecClose.resolve();
+                return;
+            }
+
+            const spawnOptions: SpawnOptions = {
+                cwd,
+                throwOnStdErr: true,
+                env: mutableEnv,
+                token,
+            };
 
             let resultProc: ChildProcess | undefined;
-            options.token?.onCancellationRequested(() => {
-                traceInfo(`Test discovery cancelled, killing unittest subprocess for workspace ${uri.fsPath}`);
-                // if the resultProc exists just call kill on it which will handle resolving the ExecClose deferred, otherwise resolve the deferred here.
-                if (resultProc) {
-                    resultProc?.kill();
-                } else {
-                    deferredTillExecClose.resolve();
-                    cSource.cancel();
-                }
-            });
-            const result = execService?.execObservable(args, spawnOptions);
-            resultProc = result?.proc;
 
-            // Displays output to user and ensure the subprocess doesn't run into buffer overflow.
-            result?.proc?.stdout?.on('data', (data) => {
-                const out = fixLogLinesNoTrailing(data.toString());
-                traceInfo(out);
-            });
-            result?.proc?.stderr?.on('data', (data) => {
-                const out = fixLogLinesNoTrailing(data.toString());
-                traceError(out);
+            // Set up cancellation handler after all early return checks
+            const cancellationHandler = token?.onCancellationRequested(() => {
+                traceInfo(`Cancellation requested during unittest discovery for workspace ${uri.fsPath}`);
+                cleanupOnCancellation('unittest', resultProc, deferredTillExecClose, discoveryPipeCancellation, uri);
             });
+            if (cancellationHandler) {
+                disposables.push(cancellationHandler);
+            }
 
-            result?.proc?.on('exit', (code, signal) => {
-                // if the child has testIds then this is a run request
+            try {
+                const result = execService.execObservable(execArgs, spawnOptions);
+                resultProc = result?.proc;
 
-                if (code !== 0) {
-                    // This occurs when we are running discovery
-                    traceError(
-                        `Subprocess exited unsuccessfully with exit code ${code} and signal ${signal} on workspace ${options.cwd}. Creating and sending error discovery payload \n`,
-                    );
-                    traceError(
-                        `Subprocess exited unsuccessfully with exit code ${code} and signal ${signal} on workspace ${uri.fsPath}. Creating and sending error discovery payload`,
-                    );
-                    this.resultResolver?.resolveDiscovery(createDiscoveryErrorPayload(code, signal, cwd));
+                if (!resultProc) {
+                    traceError(`Failed to spawn unittest discovery subprocess for workspace ${uri.fsPath}`);
+                    deferredTillExecClose.resolve();
+                    return;
                 }
+                traceInfo(`Started unittest discovery subprocess (execution factory) for workspace ${uri.fsPath}`);
+            } catch (error) {
+                traceError(`Error spawning unittest discovery subprocess for workspace ${uri.fsPath}: ${error}`);
                 deferredTillExecClose.resolve();
-            });
+                throw error;
+            }
+            resultProc.stdout?.on('data', handlers.onStdout);
+            resultProc.stderr?.on('data', handlers.onStderr);
+            resultProc.on('exit', handlers.onExit);
+            resultProc.on('close', handlers.onClose);
+
+            traceVerbose(`Waiting for unittest discovery subprocess to complete for workspace ${uri.fsPath}`);
             await deferredTillExecClose.promise;
-        } catch (ex) {
-            traceError(`Error while server attempting to run unittest command for workspace ${uri.fsPath}: ${ex}`);
+            traceInfo(`Unittest discovery completed for workspace ${uri.fsPath}`);
+        } catch (error) {
+            traceError(`Error during unittest discovery for workspace ${uri.fsPath}: ${error}`);
+            deferredTillExecClose.resolve();
+            throw error;
+        } finally {
+            traceVerbose(`Cleaning up unittest discovery resources for workspace ${uri.fsPath}`);
+            // Dispose all cancellation handlers and event subscriptions
+            disposables.forEach((d) => d.dispose());
+            // Dispose the discovery pipe cancellation token
+            discoveryPipeCancellation.dispose();
         }
     }
 }
-function buildDiscoveryCommand(args: string[]): TestDiscoveryCommand {
-    const discoveryScript = path.join(EXTENSION_ROOT_DIR, 'python_files', 'unittestadapter', 'discovery.py');
-
-    return {
-        script: discoveryScript,
-        args: ['--udiscovery', ...args],
-    };
-}
diff --git a/src/client/testing/testController/unittest/unittestHelpers.ts b/src/client/testing/testController/unittest/unittestHelpers.ts
new file mode 100644
index 000000000000..249a78dda7b7
--- /dev/null
+++ b/src/client/testing/testController/unittest/unittestHelpers.ts
@@ -0,0 +1,28 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+import * as path from 'path';
+import { traceInfo } from '../../../logging';
+
+/**
+ * Builds the environment variables required for unittest discovery.
+ * Sets TEST_RUN_PIPE for communication.
+ */
+export function buildUnittestEnv(
+    envVars: { [key: string]: string | undefined } | undefined,
+    discoveryPipeName: string,
+): { [key: string]: string | undefined } {
+    const mutableEnv = {
+        ...envVars,
+    };
+    mutableEnv.TEST_RUN_PIPE = discoveryPipeName;
+    traceInfo(`Environment variables set for unittest discovery: TEST_RUN_PIPE=${mutableEnv.TEST_RUN_PIPE}`);
+    return mutableEnv;
+}
+
+/**
+ * Builds the unittest discovery command.
+ */
+export function buildDiscoveryCommand(args: string[], extensionRootDir: string): string[] {
+    const discoveryScript = path.join(extensionRootDir, 'python_files', 'unittestadapter', 'discovery.py');
+    return [discoveryScript, '--udiscovery', ...args];
+}

From a33f1507b00496e631b42b04489e2d2709df40ff Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Fri, 28 Nov 2025 21:31:00 -0800
Subject: [PATCH 103/178] Add NotRequired type from typing_extensions for type
 hinting (#25613)

fixes https://github.com/microsoft/vscode-python/issues/25600
---
 python_files/vscode_pytest/__init__.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/python_files/vscode_pytest/__init__.py b/python_files/vscode_pytest/__init__.py
index 91a81bff9a36..ba8b270403ac 100644
--- a/python_files/vscode_pytest/__init__.py
+++ b/python_files/vscode_pytest/__init__.py
@@ -22,10 +22,10 @@
 )
 
 import pytest
-from typing_extensions import NotRequired
 
 if TYPE_CHECKING:
     from pluggy import Result
+    from typing_extensions import NotRequired
 
 USES_PYTEST_DESCRIBE = False
 

From fb0bd77a6a9f4b7833546550315c6bf67f4030f9 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Sun, 30 Nov 2025 18:20:56 -0800
Subject: [PATCH 104/178] Bump actions/checkout from 5 to 6 (#25601)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to
6.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/actions/checkout/releases">actions/checkout's
releases</a>.</em></p>
<blockquote>
<h2>v6.0.0</h2>
<h2>What's Changed</h2>
<ul>
<li>Update README to include Node.js 24 support details and requirements
by <a href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a>
in <a
href="https://redirect.github.com/actions/checkout/pull/2248">actions/checkout#2248</a></li>
<li>Persist creds to a separate file by <a
href="https://github.com/ericsciple"><code>@​ericsciple</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2286">actions/checkout#2286</a></li>
<li>v6-beta by <a
href="https://github.com/ericsciple"><code>@​ericsciple</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2298">actions/checkout#2298</a></li>
<li>update readme/changelog for v6 by <a
href="https://github.com/ericsciple"><code>@​ericsciple</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2311">actions/checkout#2311</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/checkout/compare/v5.0.0...v6.0.0">https://github.com/actions/checkout/compare/v5.0.0...v6.0.0</a></p>
<h2>v6-beta</h2>
<h2>What's Changed</h2>
<p>Updated persist-credentials to store the credentials under
<code>$RUNNER_TEMP</code> instead of directly in the local git
config.</p>
<p>This requires a minimum Actions Runner version of <a
href="https://github.com/actions/runner/releases/tag/v2.329.0">v2.329.0</a>
to access the persisted credentials for <a
href="https://docs.github.com/en/actions/tutorials/use-containerized-services/create-a-docker-container-action">Docker
container action</a> scenarios.</p>
<h2>v5.0.1</h2>
<h2>What's Changed</h2>
<ul>
<li>Port v6 cleanup to v5 by <a
href="https://github.com/ericsciple"><code>@​ericsciple</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2301">actions/checkout#2301</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/checkout/compare/v5...v5.0.1">https://github.com/actions/checkout/compare/v5...v5.0.1</a></p>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/actions/checkout/blob/main/CHANGELOG.md">actions/checkout's
changelog</a>.</em></p>
<blockquote>
<h1>Changelog</h1>
<h2>V6.0.0</h2>
<ul>
<li>Persist creds to a separate file by <a
href="https://github.com/ericsciple"><code>@​ericsciple</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2286">actions/checkout#2286</a></li>
<li>Update README to include Node.js 24 support details and requirements
by <a href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a>
in <a
href="https://redirect.github.com/actions/checkout/pull/2248">actions/checkout#2248</a></li>
</ul>
<h2>V5.0.1</h2>
<ul>
<li>Port v6 cleanup to v5 by <a
href="https://github.com/ericsciple"><code>@​ericsciple</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2301">actions/checkout#2301</a></li>
</ul>
<h2>V5.0.0</h2>
<ul>
<li>Update actions checkout to use node 24 by <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2226">actions/checkout#2226</a></li>
</ul>
<h2>V4.3.1</h2>
<ul>
<li>Port v6 cleanup to v4 by <a
href="https://github.com/ericsciple"><code>@​ericsciple</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2305">actions/checkout#2305</a></li>
</ul>
<h2>V4.3.0</h2>
<ul>
<li>docs: update README.md by <a
href="https://github.com/motss"><code>@​motss</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1971">actions/checkout#1971</a></li>
<li>Add internal repos for checking out multiple repositories by <a
href="https://github.com/mouismail"><code>@​mouismail</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1977">actions/checkout#1977</a></li>
<li>Documentation update - add recommended permissions to Readme by <a
href="https://github.com/benwells"><code>@​benwells</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2043">actions/checkout#2043</a></li>
<li>Adjust positioning of user email note and permissions heading by <a
href="https://github.com/joshmgross"><code>@​joshmgross</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2044">actions/checkout#2044</a></li>
<li>Update README.md by <a
href="https://github.com/nebuk89"><code>@​nebuk89</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2194">actions/checkout#2194</a></li>
<li>Update CODEOWNERS for actions by <a
href="https://github.com/TingluoHuang"><code>@​TingluoHuang</code></a>
in <a
href="https://redirect.github.com/actions/checkout/pull/2224">actions/checkout#2224</a></li>
<li>Update package dependencies by <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/2236">actions/checkout#2236</a></li>
</ul>
<h2>v4.2.2</h2>
<ul>
<li><code>url-helper.ts</code> now leverages well-known environment
variables by <a href="https://github.com/jww3"><code>@​jww3</code></a>
in <a
href="https://redirect.github.com/actions/checkout/pull/1941">actions/checkout#1941</a></li>
<li>Expand unit test coverage for <code>isGhes</code> by <a
href="https://github.com/jww3"><code>@​jww3</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1946">actions/checkout#1946</a></li>
</ul>
<h2>v4.2.1</h2>
<ul>
<li>Check out other refs/* by commit if provided, fall back to ref by <a
href="https://github.com/orhantoy"><code>@​orhantoy</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1924">actions/checkout#1924</a></li>
</ul>
<h2>v4.2.0</h2>
<ul>
<li>Add Ref and Commit outputs by <a
href="https://github.com/lucacome"><code>@​lucacome</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1180">actions/checkout#1180</a></li>
<li>Dependency updates by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>- <a
href="https://redirect.github.com/actions/checkout/pull/1777">actions/checkout#1777</a>,
<a
href="https://redirect.github.com/actions/checkout/pull/1872">actions/checkout#1872</a></li>
</ul>
<h2>v4.1.7</h2>
<ul>
<li>Bump the minor-npm-dependencies group across 1 directory with 4
updates by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1739">actions/checkout#1739</a></li>
<li>Bump actions/checkout from 3 to 4 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1697">actions/checkout#1697</a></li>
<li>Check out other refs/* by commit by <a
href="https://github.com/orhantoy"><code>@​orhantoy</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1774">actions/checkout#1774</a></li>
<li>Pin actions/checkout's own workflows to a known, good, stable
version. by <a href="https://github.com/jww3"><code>@​jww3</code></a> in
<a
href="https://redirect.github.com/actions/checkout/pull/1776">actions/checkout#1776</a></li>
</ul>
<h2>v4.1.6</h2>
<ul>
<li>Check platform to set archive extension appropriately by <a
href="https://github.com/cory-miller"><code>@​cory-miller</code></a> in
<a
href="https://redirect.github.com/actions/checkout/pull/1732">actions/checkout#1732</a></li>
</ul>
<h2>v4.1.5</h2>
<ul>
<li>Update NPM dependencies by <a
href="https://github.com/cory-miller"><code>@​cory-miller</code></a> in
<a
href="https://redirect.github.com/actions/checkout/pull/1703">actions/checkout#1703</a></li>
<li>Bump github/codeql-action from 2 to 3 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1694">actions/checkout#1694</a></li>
<li>Bump actions/setup-node from 1 to 4 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1696">actions/checkout#1696</a></li>
<li>Bump actions/upload-artifact from 2 to 4 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a> in <a
href="https://redirect.github.com/actions/checkout/pull/1695">actions/checkout#1695</a></li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/actions/checkout/commit/1af3b93b6815bc44a9784bd300feb67ff0d1eeb3"><code>1af3b93</code></a>
update readme/changelog for v6 (<a
href="https://redirect.github.com/actions/checkout/issues/2311">#2311</a>)</li>
<li><a
href="https://github.com/actions/checkout/commit/71cf2267d89c5cb81562390fa70a37fa40b1305e"><code>71cf226</code></a>
v6-beta (<a
href="https://redirect.github.com/actions/checkout/issues/2298">#2298</a>)</li>
<li><a
href="https://github.com/actions/checkout/commit/069c6959146423d11cd0184e6accf28f9d45f06e"><code>069c695</code></a>
Persist creds to a separate file (<a
href="https://redirect.github.com/actions/checkout/issues/2286">#2286</a>)</li>
<li><a
href="https://github.com/actions/checkout/commit/ff7abcd0c3c05ccf6adc123a8cd1fd4fb30fb493"><code>ff7abcd</code></a>
Update README to include Node.js 24 support details and requirements (<a
href="https://redirect.github.com/actions/checkout/issues/2248">#2248</a>)</li>
<li>See full diff in <a
href="https://github.com/actions/checkout/compare/v5...v6">compare
view</a></li>
</ul>
</details>
<br />


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---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
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</details>

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
---
 .github/workflows/build.yml                   | 18 ++++++------
 .github/workflows/codeql-analysis.yml         |  2 +-
 .github/workflows/gen-issue-velocity.yml      |  2 +-
 .github/workflows/info-needed-closer.yml      |  2 +-
 .github/workflows/issue-labels.yml            |  2 +-
 .github/workflows/pr-check.yml                | 28 +++++++++----------
 .../workflows/test-plan-item-validator.yml    |  2 +-
 .github/workflows/triage-info-needed.yml      |  4 +--
 8 files changed, 30 insertions(+), 30 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index b4ac46558b63..45bd02d29733 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -84,12 +84,12 @@ jobs:
           #     vsix-target: alpine-arm64
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
 
       - name: Checkout Python Environment Tools
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: 'microsoft/python-environment-tools'
           path: 'python-env-tools'
@@ -115,7 +115,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
 
@@ -135,7 +135,7 @@ jobs:
           python-version: ${{ env.PYTHON_VERSION }}
 
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
 
@@ -178,7 +178,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           path: ${{ env.special-working-directory-relative }}
           persist-credentials: false
@@ -218,13 +218,13 @@ jobs:
         test-suite: [ts-unit, venv, single-workspace, multi-workspace, debugger, functional]
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           path: ${{ env.special-working-directory-relative }}
           persist-credentials: false
 
       - name: Checkout Python Environment Tools
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: 'microsoft/python-environment-tools'
           path: ${{ env.special-working-directory-relative }}/python-env-tools
@@ -426,12 +426,12 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
 
       - name: Checkout Python Environment Tools
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: 'microsoft/python-environment-tools'
           path: ${{ env.special-working-directory-relative }}/python-env-tools
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 168ef0a05b3d..5528fbbe9c0a 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -36,7 +36,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
 
diff --git a/.github/workflows/gen-issue-velocity.yml b/.github/workflows/gen-issue-velocity.yml
index fdcb41cdaba9..41d79e4074d0 100644
--- a/.github/workflows/gen-issue-velocity.yml
+++ b/.github/workflows/gen-issue-velocity.yml
@@ -14,7 +14,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
 
diff --git a/.github/workflows/info-needed-closer.yml b/.github/workflows/info-needed-closer.yml
index 33f53fc20dca..46892a58e800 100644
--- a/.github/workflows/info-needed-closer.yml
+++ b/.github/workflows/info-needed-closer.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Actions
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: 'microsoft/vscode-github-triage-actions'
           path: ./actions
diff --git a/.github/workflows/issue-labels.yml b/.github/workflows/issue-labels.yml
index a78ca03d5ee9..dcbd114086e2 100644
--- a/.github/workflows/issue-labels.yml
+++ b/.github/workflows/issue-labels.yml
@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Actions
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: 'microsoft/vscode-github-triage-actions'
           ref: stable
diff --git a/.github/workflows/pr-check.yml b/.github/workflows/pr-check.yml
index 102258fb2d18..892d5d56f4fc 100644
--- a/.github/workflows/pr-check.yml
+++ b/.github/workflows/pr-check.yml
@@ -57,12 +57,12 @@ jobs:
           #     vsix-target: alpine-arm64
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
 
       - name: Checkout Python Environment Tools
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: 'microsoft/python-environment-tools'
           path: 'python-env-tools'
@@ -87,7 +87,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
 
@@ -106,12 +106,12 @@ jobs:
           python-version: ${{ env.PYTHON_VERSION }}
 
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
 
       - name: Checkout Python Environment Tools
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: 'microsoft/python-environment-tools'
           path: 'python-env-tools'
@@ -162,7 +162,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           path: ${{ env.special-working-directory-relative }}
           persist-credentials: false
@@ -215,13 +215,13 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           path: ${{ env.special-working-directory-relative }}
           persist-credentials: false
 
       - name: Checkout Python Environment Tools
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: 'microsoft/python-environment-tools'
           path: ${{ env.special-working-directory-relative }}/python-env-tools
@@ -412,13 +412,13 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           path: ${{ env.special-working-directory-relative }}
           persist-credentials: false
 
       - name: Checkout Python Environment Tools
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: 'microsoft/python-environment-tools'
           path: ${{ env.special-working-directory-relative }}/python-env-tools
@@ -452,12 +452,12 @@ jobs:
     steps:
       # Need the source to have the tests available.
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
 
       - name: Checkout Python Environment Tools
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: 'microsoft/python-environment-tools'
           path: python-env-tools
@@ -488,12 +488,12 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
 
       - name: Checkout Python Environment Tools
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: 'microsoft/python-environment-tools'
           path: python-env-tools
diff --git a/.github/workflows/test-plan-item-validator.yml b/.github/workflows/test-plan-item-validator.yml
index 6e62058b04c6..57db4a3e18a7 100644
--- a/.github/workflows/test-plan-item-validator.yml
+++ b/.github/workflows/test-plan-item-validator.yml
@@ -12,7 +12,7 @@ jobs:
     if: contains(github.event.issue.labels.*.name, 'testplan-item') || contains(github.event.issue.labels.*.name, 'invalid-testplan-item')
     steps:
       - name: Checkout Actions
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: 'microsoft/vscode-github-triage-actions'
           path: ./actions
diff --git a/.github/workflows/triage-info-needed.yml b/.github/workflows/triage-info-needed.yml
index f61d17c033d7..c7a37ba0c78d 100644
--- a/.github/workflows/triage-info-needed.yml
+++ b/.github/workflows/triage-info-needed.yml
@@ -15,7 +15,7 @@ jobs:
       issues: write
     steps:
       - name: Checkout Actions
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: 'microsoft/vscode-github-triage-actions'
           ref: stable
@@ -39,7 +39,7 @@ jobs:
       issues: write
     steps:
       - name: Checkout Actions
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: 'microsoft/vscode-github-triage-actions'
           ref: stable

From d14ccc2cb8fe8bf7f01f29fd7610b77e208a9172 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Sun, 30 Nov 2025 18:22:46 -0800
Subject: [PATCH 105/178] Refactor test controller logic to improve clarity and
 maintainability (#25615)

---
 .../testing/testController/controller.ts      | 438 ++++++++++--------
 1 file changed, 256 insertions(+), 182 deletions(-)

diff --git a/src/client/testing/testController/controller.ts b/src/client/testing/testController/controller.ts
index b38c9b0bcee1..8c8ce422e3c1 100644
--- a/src/client/testing/testController/controller.ts
+++ b/src/client/testing/testController/controller.ts
@@ -29,7 +29,7 @@ import { IConfigurationService, IDisposableRegistry, Resource } from '../../comm
 import { DelayedTrigger, IDelayedTrigger } from '../../common/utils/delayTrigger';
 import { noop } from '../../common/utils/misc';
 import { IInterpreterService } from '../../interpreter/contracts';
-import { traceError, traceInfo, traceVerbose } from '../../logging';
+import { traceError, traceVerbose } from '../../logging';
 import { IEventNamePropertyMapping, sendTelemetryEvent } from '../../telemetry';
 import { EventName } from '../../telemetry/constants';
 import { PYTEST_PROVIDER, UNITTEST_PROVIDER } from '../common/constants';
@@ -253,101 +253,121 @@ export class PythonTestController implements ITestController, IExtensionSingleAc
 
     private async refreshTestDataInternal(uri?: Resource): Promise<void> {
         this.refreshingStartedEvent.fire();
-        if (uri) {
-            const settings = this.configSettings.getSettings(uri);
-            const workspace = this.workspaceService.getWorkspaceFolder(uri);
-            traceInfo(`Discover tests for workspace name: ${workspace?.name} - uri: ${uri.fsPath}`);
-            // Ensure we send test telemetry if it gets disabled again
-            this.sendTestDisabledTelemetry = true;
-            // ** experiment to roll out NEW test discovery mechanism
-            if (settings.testing.pytestEnabled) {
-                if (workspace && workspace.uri) {
-                    const testAdapter = this.testAdapters.get(workspace.uri);
-                    if (testAdapter) {
-                        const testProviderInAdapter = testAdapter.getTestProvider();
-                        if (testProviderInAdapter !== 'pytest') {
-                            traceError('Test provider in adapter is not pytest. Please reload window.');
-                            this.surfaceErrorNode(
-                                workspace.uri,
-                                'Test provider types are not aligned, please reload your VS Code window.',
-                                'pytest',
-                            );
-                            return Promise.resolve();
-                        }
-                        await testAdapter.discoverTests(
-                            this.testController,
-                            this.pythonExecFactory,
-                            this.refreshCancellation.token,
-                            await this.interpreterService.getActiveInterpreter(workspace.uri),
-                        );
-                    } else {
-                        traceError('Unable to find test adapter for workspace.');
-                    }
-                } else {
-                    traceError('Unable to find workspace for given file');
-                }
-            } else if (settings.testing.unittestEnabled) {
-                if (workspace && workspace.uri) {
-                    const testAdapter = this.testAdapters.get(workspace.uri);
-                    if (testAdapter) {
-                        const testProviderInAdapter = testAdapter.getTestProvider();
-                        if (testProviderInAdapter !== 'unittest') {
-                            traceError('Test provider in adapter is not unittest. Please reload window.');
-                            this.surfaceErrorNode(
-                                workspace.uri,
-                                'Test provider types are not aligned, please reload your VS Code window.',
-                                'unittest',
-                            );
-                            return Promise.resolve();
-                        }
-                        await testAdapter.discoverTests(
-                            this.testController,
-                            this.pythonExecFactory,
-                            this.refreshCancellation.token,
-                            await this.interpreterService.getActiveInterpreter(workspace.uri),
-                        );
-                    } else {
-                        traceError('Unable to find test adapter for workspace.');
-                    }
-                } else {
-                    traceError('Unable to find workspace for given file');
-                }
+        try {
+            if (uri) {
+                await this.refreshSingleWorkspace(uri);
             } else {
-                if (this.sendTestDisabledTelemetry) {
-                    this.sendTestDisabledTelemetry = false;
-                    sendTelemetryEvent(EventName.UNITTEST_DISABLED);
-                }
-                // If we are here we may have to remove an existing node from the tree
-                // This handles the case where user removes test settings. Which should remove the
-                // tests for that particular case from the tree view
-                if (workspace) {
-                    const toDelete: string[] = [];
-                    this.testController.items.forEach((i: TestItem) => {
-                        const w = this.workspaceService.getWorkspaceFolder(i.uri);
-                        if (w?.uri.fsPath === workspace.uri.fsPath) {
-                            toDelete.push(i.id);
-                        }
-                    });
-                    toDelete.forEach((i) => this.testController.items.delete(i));
-                }
+                await this.refreshAllWorkspaces();
             }
+        } finally {
+            this.refreshingCompletedEvent.fire();
+        }
+    }
+
+    /**
+     * Discovers tests for a single workspace.
+     */
+    private async refreshSingleWorkspace(uri: Uri): Promise<void> {
+        const workspace = this.workspaceService.getWorkspaceFolder(uri);
+        if (!workspace?.uri) {
+            traceError('Unable to find workspace for given file');
+            return;
+        }
+
+        const settings = this.configSettings.getSettings(uri);
+        traceVerbose(`Discover tests for workspace name: ${workspace.name} - uri: ${uri.fsPath}`);
+
+        // Ensure we send test telemetry if it gets disabled again
+        this.sendTestDisabledTelemetry = true;
+
+        if (settings.testing.pytestEnabled) {
+            await this.discoverTestsForProvider(workspace.uri, 'pytest');
+        } else if (settings.testing.unittestEnabled) {
+            await this.discoverTestsForProvider(workspace.uri, 'unittest');
         } else {
-            traceVerbose('Testing: Refreshing all test data');
-            const workspaces: readonly WorkspaceFolder[] = this.workspaceService.workspaceFolders || [];
-            await Promise.all(
-                workspaces.map(async (workspace) => {
-                    if (!(await this.interpreterService.getActiveInterpreter(workspace.uri))) {
-                        this.commandManager
-                            .executeCommand(constants.Commands.TriggerEnvironmentSelection, workspace.uri)
-                            .then(noop, noop);
-                        return;
-                    }
-                    await this.refreshTestDataInternal(workspace.uri);
-                }),
+            await this.handleNoTestProviderEnabled(workspace);
+        }
+    }
+
+    /**
+     * Discovers tests for all workspaces in the workspace folders.
+     */
+    private async refreshAllWorkspaces(): Promise<void> {
+        traceVerbose('Testing: Refreshing all test data');
+        const workspaces: readonly WorkspaceFolder[] = this.workspaceService.workspaceFolders || [];
+
+        await Promise.all(
+            workspaces.map(async (workspace) => {
+                if (!(await this.interpreterService.getActiveInterpreter(workspace.uri))) {
+                    this.commandManager
+                        .executeCommand(constants.Commands.TriggerEnvironmentSelection, workspace.uri)
+                        .then(noop, noop);
+                    return;
+                }
+                await this.refreshSingleWorkspace(workspace.uri);
+            }),
+        );
+    }
+
+    /**
+     * Discovers tests for a specific test provider (pytest or unittest).
+     * Validates that the adapter's provider matches the expected provider.
+     */
+    private async discoverTestsForProvider(workspaceUri: Uri, expectedProvider: TestProvider): Promise<void> {
+        const testAdapter = this.testAdapters.get(workspaceUri);
+
+        if (!testAdapter) {
+            traceError('Unable to find test adapter for workspace.');
+            return;
+        }
+
+        const actualProvider = testAdapter.getTestProvider();
+        if (actualProvider !== expectedProvider) {
+            traceError(`Test provider in adapter is not ${expectedProvider}. Please reload window.`);
+            this.surfaceErrorNode(
+                workspaceUri,
+                'Test provider types are not aligned, please reload your VS Code window.',
+                expectedProvider,
             );
+            return;
         }
-        this.refreshingCompletedEvent.fire();
-        return Promise.resolve();
+
+        await testAdapter.discoverTests(
+            this.testController,
+            this.pythonExecFactory,
+            this.refreshCancellation.token,
+            await this.interpreterService.getActiveInterpreter(workspaceUri),
+        );
+    }
+
+    /**
+     * Handles the case when no test provider is enabled.
+     * Sends telemetry and removes test items for the workspace from the tree.
+     */
+    private async handleNoTestProviderEnabled(workspace: WorkspaceFolder): Promise<void> {
+        if (this.sendTestDisabledTelemetry) {
+            this.sendTestDisabledTelemetry = false;
+            sendTelemetryEvent(EventName.UNITTEST_DISABLED);
+        }
+
+        this.removeTestItemsForWorkspace(workspace);
+    }
+
+    /**
+     * Removes all test items belonging to a specific workspace from the test controller.
+     * This is used when test discovery is disabled for a workspace.
+     */
+    private removeTestItemsForWorkspace(workspace: WorkspaceFolder): void {
+        const itemsToDelete: string[] = [];
+
+        this.testController.items.forEach((testItem: TestItem) => {
+            const itemWorkspace = this.workspaceService.getWorkspaceFolder(testItem.uri);
+            if (itemWorkspace?.uri.fsPath === workspace.uri.fsPath) {
+                itemsToDelete.push(testItem.id);
+            }
+        });
+
+        itemsToDelete.forEach((id) => this.testController.items.delete(id));
     }
 
     private async resolveChildren(item: TestItem | undefined): Promise<void> {
@@ -378,21 +398,13 @@ export class PythonTestController implements ITestController, IExtensionSingleAc
     }
 
     private async runTests(request: TestRunRequest, token: CancellationToken): Promise<void> {
-        const workspaces: WorkspaceFolder[] = [];
-        if (request.include) {
-            uniq(request.include.map((r) => this.workspaceService.getWorkspaceFolder(r.uri))).forEach((w) => {
-                if (w) {
-                    workspaces.push(w);
-                }
-            });
-        } else {
-            (this.workspaceService.workspaceFolders || []).forEach((w) => workspaces.push(w));
-        }
+        const workspaces = this.getWorkspacesForTestRun(request);
         const runInstance = this.testController.createTestRun(
             request,
             `Running Tests for Workspace(s): ${workspaces.map((w) => w.uri.fsPath).join(';')}`,
             true,
         );
+
         const dispose = token.onCancellationRequested(() => {
             runInstance.appendOutput(`\nRun instance cancelled.\r\n`);
             runInstance.end();
@@ -402,87 +414,9 @@ export class PythonTestController implements ITestController, IExtensionSingleAc
 
         try {
             await Promise.all(
-                workspaces.map(async (workspace) => {
-                    if (!(await this.interpreterService.getActiveInterpreter(workspace.uri))) {
-                        this.commandManager
-                            .executeCommand(constants.Commands.TriggerEnvironmentSelection, workspace.uri)
-                            .then(noop, noop);
-                        return undefined;
-                    }
-                    const testItems: TestItem[] = [];
-                    // If the run request includes test items then collect only items that belong to
-                    // `workspace`. If there are no items in the run request then just run the `workspace`
-                    // root test node. Include will be `undefined` in the "run all" scenario.
-                    (request.include ?? this.testController.items).forEach((i: TestItem) => {
-                        const w = this.workspaceService.getWorkspaceFolder(i.uri);
-                        if (w?.uri.fsPath === workspace.uri.fsPath) {
-                            testItems.push(i);
-                        }
-                    });
-
-                    const settings = this.configSettings.getSettings(workspace.uri);
-                    if (testItems.length > 0) {
-                        const testAdapter =
-                            this.testAdapters.get(workspace.uri) ||
-                            (this.testAdapters.values().next().value as WorkspaceTestAdapter);
-
-                        // no profile will have TestRunProfileKind.Coverage if rewrite isn't enabled
-                        if (request.profile?.kind && request.profile?.kind === TestRunProfileKind.Coverage) {
-                            request.profile.loadDetailedCoverage = (
-                                _testRun: TestRun,
-                                fileCoverage,
-                                _token,
-                            ): Thenable<FileCoverageDetail[]> => {
-                                const details = testAdapter.resultResolver.detailedCoverageMap.get(
-                                    fileCoverage.uri.fsPath,
-                                );
-                                if (details === undefined) {
-                                    // given file has no detailed coverage data
-                                    return Promise.resolve([]);
-                                }
-                                return Promise.resolve(details);
-                            };
-                        }
-
-                        if (settings.testing.pytestEnabled) {
-                            sendTelemetryEvent(EventName.UNITTEST_RUN, undefined, {
-                                tool: 'pytest',
-                                debugging: request.profile?.kind === TestRunProfileKind.Debug,
-                            });
-                            return testAdapter.executeTests(
-                                this.testController,
-                                runInstance,
-                                testItems,
-                                this.pythonExecFactory,
-                                token,
-                                request.profile?.kind,
-                                this.debugLauncher,
-                                await this.interpreterService.getActiveInterpreter(workspace.uri),
-                            );
-                        }
-                        if (settings.testing.unittestEnabled) {
-                            sendTelemetryEvent(EventName.UNITTEST_RUN, undefined, {
-                                tool: 'unittest',
-                                debugging: request.profile?.kind === TestRunProfileKind.Debug,
-                            });
-                            // ** experiment to roll out NEW test discovery mechanism
-                            return testAdapter.executeTests(
-                                this.testController,
-                                runInstance,
-                                testItems,
-                                this.pythonExecFactory,
-                                token,
-                                request.profile?.kind,
-                                this.debugLauncher,
-                                await this.interpreterService.getActiveInterpreter(workspace.uri),
-                            );
-                        }
-                    }
-                    if (!settings.testing.pytestEnabled && !settings.testing.unittestEnabled) {
-                        unconfiguredWorkspaces.push(workspace);
-                    }
-                    return Promise.resolve();
-                }),
+                workspaces.map((workspace) =>
+                    this.runTestsForWorkspace(workspace, request, runInstance, token, unconfiguredWorkspaces),
+                ),
             );
         } finally {
             traceVerbose('Finished running tests, ending runInstance.');
@@ -495,6 +429,146 @@ export class PythonTestController implements ITestController, IExtensionSingleAc
         }
     }
 
+    /**
+     * Gets the list of workspaces to run tests for based on the test run request.
+     */
+    private getWorkspacesForTestRun(request: TestRunRequest): WorkspaceFolder[] {
+        if (request.include) {
+            const workspaces: WorkspaceFolder[] = [];
+            uniq(request.include.map((r) => this.workspaceService.getWorkspaceFolder(r.uri))).forEach((w) => {
+                if (w) {
+                    workspaces.push(w);
+                }
+            });
+            return workspaces;
+        }
+        return Array.from(this.workspaceService.workspaceFolders || []);
+    }
+
+    /**
+     * Runs tests for a single workspace.
+     */
+    private async runTestsForWorkspace(
+        workspace: WorkspaceFolder,
+        request: TestRunRequest,
+        runInstance: TestRun,
+        token: CancellationToken,
+        unconfiguredWorkspaces: WorkspaceFolder[],
+    ): Promise<void> {
+        if (!(await this.interpreterService.getActiveInterpreter(workspace.uri))) {
+            this.commandManager
+                .executeCommand(constants.Commands.TriggerEnvironmentSelection, workspace.uri)
+                .then(noop, noop);
+            return;
+        }
+
+        const testItems = this.getTestItemsForWorkspace(workspace, request);
+        const settings = this.configSettings.getSettings(workspace.uri);
+
+        if (testItems.length === 0) {
+            if (!settings.testing.pytestEnabled && !settings.testing.unittestEnabled) {
+                unconfiguredWorkspaces.push(workspace);
+            }
+            return;
+        }
+
+        const testAdapter =
+            this.testAdapters.get(workspace.uri) || (this.testAdapters.values().next().value as WorkspaceTestAdapter);
+
+        this.setupCoverageIfNeeded(request, testAdapter);
+
+        if (settings.testing.pytestEnabled) {
+            await this.executeTestsForProvider(
+                workspace,
+                testAdapter,
+                testItems,
+                runInstance,
+                request,
+                token,
+                'pytest',
+            );
+        } else if (settings.testing.unittestEnabled) {
+            await this.executeTestsForProvider(
+                workspace,
+                testAdapter,
+                testItems,
+                runInstance,
+                request,
+                token,
+                'unittest',
+            );
+        } else {
+            unconfiguredWorkspaces.push(workspace);
+        }
+    }
+
+    /**
+     * Gets test items that belong to a specific workspace from the run request.
+     */
+    private getTestItemsForWorkspace(workspace: WorkspaceFolder, request: TestRunRequest): TestItem[] {
+        const testItems: TestItem[] = [];
+        // If the run request includes test items then collect only items that belong to
+        // `workspace`. If there are no items in the run request then just run the `workspace`
+        // root test node. Include will be `undefined` in the "run all" scenario.
+        (request.include ?? this.testController.items).forEach((i: TestItem) => {
+            const w = this.workspaceService.getWorkspaceFolder(i.uri);
+            if (w?.uri.fsPath === workspace.uri.fsPath) {
+                testItems.push(i);
+            }
+        });
+        return testItems;
+    }
+
+    /**
+     * Sets up detailed coverage loading if the run profile is for coverage.
+     */
+    private setupCoverageIfNeeded(request: TestRunRequest, testAdapter: WorkspaceTestAdapter): void {
+        // no profile will have TestRunProfileKind.Coverage if rewrite isn't enabled
+        if (request.profile?.kind && request.profile?.kind === TestRunProfileKind.Coverage) {
+            request.profile.loadDetailedCoverage = (
+                _testRun: TestRun,
+                fileCoverage,
+                _token,
+            ): Thenable<FileCoverageDetail[]> => {
+                const details = testAdapter.resultResolver.detailedCoverageMap.get(fileCoverage.uri.fsPath);
+                if (details === undefined) {
+                    // given file has no detailed coverage data
+                    return Promise.resolve([]);
+                }
+                return Promise.resolve(details);
+            };
+        }
+    }
+
+    /**
+     * Executes tests using the test adapter for a specific test provider.
+     */
+    private async executeTestsForProvider(
+        workspace: WorkspaceFolder,
+        testAdapter: WorkspaceTestAdapter,
+        testItems: TestItem[],
+        runInstance: TestRun,
+        request: TestRunRequest,
+        token: CancellationToken,
+        provider: TestProvider,
+    ): Promise<void> {
+        sendTelemetryEvent(EventName.UNITTEST_RUN, undefined, {
+            tool: provider,
+            debugging: request.profile?.kind === TestRunProfileKind.Debug,
+        });
+
+        await testAdapter.executeTests(
+            this.testController,
+            runInstance,
+            testItems,
+            this.pythonExecFactory,
+            token,
+            request.profile?.kind,
+            this.debugLauncher,
+            await this.interpreterService.getActiveInterpreter(workspace.uri),
+        );
+    }
+
     private invalidateTests(uri: Uri) {
         this.testController.items.forEach((root) => {
             const item = getNodeByUri(root, uri);

From 2cb58d515fb9f9c27f7b928f04f5bf0021c19351 Mon Sep 17 00:00:00 2001
From: Anthony Kim <62267334+anthonykim1@users.noreply.github.com>
Date: Wed, 3 Dec 2025 20:45:30 -0800
Subject: [PATCH 106/178] Fix KeyboardInterrupt in REPL  (#25625)

Resolves: https://github.com/microsoft/vscode-python/issues/25468

Not consistent repro. I was able to repro on one mac, not the other.
We can just use sendText in REPL, users will still be able to access
shell integration still.

Extension doesnt use exitCode or other feature from executeCommand atm.
---
 src/client/common/terminal/service.ts         | 19 +++----------------
 .../common/terminals/service.unit.test.ts     |  4 ++--
 2 files changed, 5 insertions(+), 18 deletions(-)

diff --git a/src/client/common/terminal/service.ts b/src/client/common/terminal/service.ts
index e92fbd3d494f..54c1fd1f795e 100644
--- a/src/client/common/terminal/service.ts
+++ b/src/client/common/terminal/service.ts
@@ -20,12 +20,9 @@ import {
     TerminalShellType,
 } from './types';
 import { traceVerbose } from '../../logging';
-import { getConfiguration } from '../vscodeApis/workspaceApis';
 import { useEnvExtension } from '../../envExt/api.internal';
 import { ensureTerminalLegacy } from '../../envExt/api.legacy';
 import { sleep } from '../utils/async';
-import { isWindows } from '../utils/platform';
-import { getPythonMinorVersion } from '../../repl/replUtils';
 
 @injectable()
 export class TerminalService implements ITerminalService, Disposable {
@@ -108,20 +105,10 @@ export class TerminalService implements ITerminalService, Disposable {
             await promise;
         }
 
-        const config = getConfiguration('python');
-        const pythonrcSetting = config.get<boolean>('terminal.shellIntegration.enabled');
-
-        const minorVersion = this.options?.resource
-            ? await getPythonMinorVersion(
-                  this.options.resource,
-                  this.serviceContainer.get<IInterpreterService>(IInterpreterService),
-              )
-            : undefined;
-
-        if ((isPythonShell && !pythonrcSetting) || (isPythonShell && isWindows()) || (minorVersion ?? 0) >= 13) {
-            // If user has explicitly disabled SI for Python, use sendText for inside Terminal REPL.
+        if (isPythonShell) {
+            // Prevent KeyboardInterrupt in Python REPL: https://github.com/microsoft/vscode-python/issues/25468
             terminal.sendText(commandLine);
-            return undefined;
+            traceVerbose(`Python REPL detected, sendText: ${commandLine}`);
         } else if (terminal.shellIntegration) {
             const execution = terminal.shellIntegration.executeCommand(commandLine);
             traceVerbose(`Shell Integration is enabled, executeCommand: ${commandLine}`);
diff --git a/src/test/common/terminals/service.unit.test.ts b/src/test/common/terminals/service.unit.test.ts
index 63a1cd544940..246a599f17d6 100644
--- a/src/test/common/terminals/service.unit.test.ts
+++ b/src/test/common/terminals/service.unit.test.ts
@@ -258,7 +258,7 @@ suite('Terminal Service', () => {
         terminal.verify((t) => t.sendText(TypeMoq.It.isValue(textToSend)), TypeMoq.Times.exactly(1));
     });
 
-    test('Ensure sendText is NOT called when Python shell integration and terminal shell integration are both enabled - Mac, Linux && Python < 3.13', async () => {
+    test('Ensure sendText is called when Python shell integration and terminal shell integration are both enabled - Mac, Linux && Python < 3.13', async () => {
         isWindowsStub.returns(false);
         pythonConfig
             .setup((p) => p.get('terminal.shellIntegration.enabled'))
@@ -277,7 +277,7 @@ suite('Terminal Service', () => {
         service.executeCommand(textToSend, true);
 
         terminal.verify((t) => t.show(TypeMoq.It.isValue(true)), TypeMoq.Times.exactly(1));
-        terminal.verify((t) => t.sendText(TypeMoq.It.isValue(textToSend)), TypeMoq.Times.never());
+        terminal.verify((t) => t.sendText(TypeMoq.It.isValue(textToSend)), TypeMoq.Times.exactly(1));
     });
 
     test('Ensure sendText is called when Python shell integration and terminal shell integration are both enabled - Mac, Linux && Python >= 3.13', async () => {

From 75323b38757c653579736e27fee0820990edf094 Mon Sep 17 00:00:00 2001
From: Karthik Nadig <kanadig@microsoft.com>
Date: Fri, 5 Dec 2025 21:38:02 +0530
Subject: [PATCH 107/178] Improve resolveFilePath function to correctly handle
 URIs and file paths (#25632)

Fixes https://github.com/Microsoft/vscode-python/issues/25382
---
 src/client/chat/utils.ts         |  20 ++-
 src/test/chat/utils.unit.test.ts | 248 +++++++++++++++++++++++++++++++
 2 files changed, 262 insertions(+), 6 deletions(-)
 create mode 100644 src/test/chat/utils.unit.test.ts

diff --git a/src/client/chat/utils.ts b/src/client/chat/utils.ts
index bddd26049668..84df2901341b 100644
--- a/src/client/chat/utils.ts
+++ b/src/client/chat/utils.ts
@@ -19,6 +19,7 @@ import { JUPYTER_EXTENSION_ID, NotebookCellScheme } from '../common/constants';
 import { dirname, join } from 'path';
 import { resolveEnvironment, useEnvExtension } from '../envExt/api.internal';
 import { ErrorWithTelemetrySafeReason } from '../common/errors/errorUtils';
+import { getWorkspaceFolders } from '../common/vscodeApis/workspaceApis';
 
 export interface IResourceReference {
     resourcePath?: string;
@@ -26,14 +27,21 @@ export interface IResourceReference {
 
 export function resolveFilePath(filepath?: string): Uri | undefined {
     if (!filepath) {
-        return workspace.workspaceFolders ? workspace.workspaceFolders[0].uri : undefined;
+        const folders = getWorkspaceFolders() ?? [];
+        return folders.length > 0 ? folders[0].uri : undefined;
     }
-    // starts with a scheme
-    try {
-        return Uri.parse(filepath);
-    } catch (e) {
-        return Uri.file(filepath);
+    // Check if it's a URI with a scheme (contains "://")
+    // This handles schemes like "file://", "vscode-notebook://", etc.
+    // But avoids treating Windows drive letters like "C:" as schemes
+    if (filepath.includes('://')) {
+        try {
+            return Uri.parse(filepath);
+        } catch {
+            return Uri.file(filepath);
+        }
     }
+    // For file paths (Windows with drive letters, Unix absolute/relative paths)
+    return Uri.file(filepath);
 }
 
 /**
diff --git a/src/test/chat/utils.unit.test.ts b/src/test/chat/utils.unit.test.ts
new file mode 100644
index 000000000000..8d45c1ac118f
--- /dev/null
+++ b/src/test/chat/utils.unit.test.ts
@@ -0,0 +1,248 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+'use strict';
+
+import { expect } from 'chai';
+import * as sinon from 'sinon';
+import { Uri, WorkspaceFolder } from 'vscode';
+import { resolveFilePath } from '../../client/chat/utils';
+import * as workspaceApis from '../../client/common/vscodeApis/workspaceApis';
+
+suite('Chat Utils - resolveFilePath()', () => {
+    let getWorkspaceFoldersStub: sinon.SinonStub;
+
+    setup(() => {
+        getWorkspaceFoldersStub = sinon.stub(workspaceApis, 'getWorkspaceFolders');
+        getWorkspaceFoldersStub.returns([]);
+    });
+
+    teardown(() => {
+        sinon.restore();
+    });
+
+    suite('When filepath is undefined or empty', () => {
+        test('Should return first workspace folder URI when workspace folders exist', () => {
+            const expectedUri = Uri.file('/test/workspace');
+            const mockFolder: WorkspaceFolder = {
+                uri: expectedUri,
+                name: 'test',
+                index: 0,
+            };
+            getWorkspaceFoldersStub.returns([mockFolder]);
+
+            const result = resolveFilePath(undefined);
+
+            expect(result?.toString()).to.equal(expectedUri.toString());
+        });
+
+        test('Should return first folder when multiple workspace folders exist', () => {
+            const firstUri = Uri.file('/first/workspace');
+            const secondUri = Uri.file('/second/workspace');
+            const mockFolders: WorkspaceFolder[] = [
+                { uri: firstUri, name: 'first', index: 0 },
+                { uri: secondUri, name: 'second', index: 1 },
+            ];
+            getWorkspaceFoldersStub.returns(mockFolders);
+
+            const result = resolveFilePath(undefined);
+
+            expect(result?.toString()).to.equal(firstUri.toString());
+        });
+
+        test('Should return undefined when no workspace folders exist', () => {
+            getWorkspaceFoldersStub.returns(undefined);
+
+            const result = resolveFilePath(undefined);
+
+            expect(result).to.be.undefined;
+        });
+
+        test('Should return undefined when workspace folders is empty array', () => {
+            getWorkspaceFoldersStub.returns([]);
+
+            const result = resolveFilePath(undefined);
+
+            expect(result).to.be.undefined;
+        });
+
+        test('Should return undefined for empty string when no workspace folders', () => {
+            getWorkspaceFoldersStub.returns(undefined);
+
+            const result = resolveFilePath('');
+
+            expect(result).to.be.undefined;
+        });
+    });
+
+    suite('Windows file paths', () => {
+        test('Should handle Windows path with lowercase drive letter', () => {
+            const filepath = 'c:\\GIT\\tests\\simple-python-app';
+
+            const result = resolveFilePath(filepath);
+
+            expect(result).to.not.be.undefined;
+            expect(result?.scheme).to.equal('file');
+            // Uri.file normalizes drive letters to lowercase
+            expect(result?.fsPath.toLowerCase()).to.include('git');
+        });
+
+        test('Should handle Windows path with uppercase drive letter', () => {
+            const filepath = 'C:\\Users\\test\\project';
+
+            const result = resolveFilePath(filepath);
+
+            expect(result).to.not.be.undefined;
+            expect(result?.scheme).to.equal('file');
+            expect(result?.fsPath.toLowerCase()).to.include('users');
+        });
+
+        test('Should handle Windows path with forward slashes', () => {
+            const filepath = 'C:/Users/test/project';
+
+            const result = resolveFilePath(filepath);
+
+            expect(result).to.not.be.undefined;
+            expect(result?.scheme).to.equal('file');
+        });
+    });
+
+    suite('Unix file paths', () => {
+        test('Should handle Unix absolute path', () => {
+            const filepath = '/home/user/projects/myapp';
+
+            const result = resolveFilePath(filepath);
+
+            expect(result).to.not.be.undefined;
+            expect(result?.scheme).to.equal('file');
+            expect(result?.path).to.include('/home/user/projects/myapp');
+        });
+
+        test('Should handle Unix root path', () => {
+            const filepath = '/';
+
+            const result = resolveFilePath(filepath);
+
+            expect(result).to.not.be.undefined;
+            expect(result?.scheme).to.equal('file');
+        });
+    });
+
+    suite('Relative paths', () => {
+        test('Should handle relative path with dot prefix', () => {
+            const filepath = './src/main.py';
+
+            const result = resolveFilePath(filepath);
+
+            expect(result).to.not.be.undefined;
+            expect(result?.scheme).to.equal('file');
+        });
+
+        test('Should handle relative path without prefix', () => {
+            const filepath = 'src/main.py';
+
+            const result = resolveFilePath(filepath);
+
+            expect(result).to.not.be.undefined;
+            expect(result?.scheme).to.equal('file');
+        });
+
+        test('Should handle parent directory reference', () => {
+            const filepath = '../other-project/file.py';
+
+            const result = resolveFilePath(filepath);
+
+            expect(result).to.not.be.undefined;
+            expect(result?.scheme).to.equal('file');
+        });
+    });
+
+    suite('URI schemes', () => {
+        test('Should handle file:// URI scheme', () => {
+            const filepath = 'file:///home/user/test.py';
+
+            const result = resolveFilePath(filepath);
+
+            expect(result).to.not.be.undefined;
+            expect(result?.scheme).to.equal('file');
+            expect(result?.path).to.include('/home/user/test.py');
+        });
+
+        test('Should handle vscode-notebook:// URI scheme', () => {
+            const filepath = 'vscode-notebook://jupyter/notebook.ipynb';
+
+            const result = resolveFilePath(filepath);
+
+            expect(result).to.not.be.undefined;
+            expect(result?.scheme).to.equal('vscode-notebook');
+        });
+
+        test('Should handle untitled: URI scheme without double slash as file path', () => {
+            const filepath = 'untitled:Untitled-1';
+
+            const result = resolveFilePath(filepath);
+
+            expect(result).to.not.be.undefined;
+            // untitled: doesn't have ://, so it will be treated as a file path
+            expect(result?.scheme).to.equal('file');
+        });
+
+        test('Should handle https:// URI scheme', () => {
+            const filepath = 'https://example.com/path';
+
+            const result = resolveFilePath(filepath);
+
+            expect(result).to.not.be.undefined;
+            expect(result?.scheme).to.equal('https');
+        });
+
+        test('Should handle vscode-vfs:// URI scheme', () => {
+            const filepath = 'vscode-vfs://github/microsoft/vscode/file.ts';
+
+            const result = resolveFilePath(filepath);
+
+            expect(result).to.not.be.undefined;
+            expect(result?.scheme).to.equal('vscode-vfs');
+        });
+    });
+
+    suite('Edge cases', () => {
+        test('Should handle path with spaces', () => {
+            const filepath = '/home/user/my project/file.py';
+
+            const result = resolveFilePath(filepath);
+
+            expect(result).to.not.be.undefined;
+            expect(result?.scheme).to.equal('file');
+        });
+
+        test('Should handle path with special characters', () => {
+            const filepath = '/home/user/project-name_v2/file.py';
+
+            const result = resolveFilePath(filepath);
+
+            expect(result).to.not.be.undefined;
+            expect(result?.scheme).to.equal('file');
+        });
+
+        test('Should not treat Windows drive letter colon as URI scheme', () => {
+            // Windows path should not be confused with a URI scheme
+            const filepath = 'd:\\projects\\test';
+
+            const result = resolveFilePath(filepath);
+
+            expect(result).to.not.be.undefined;
+            expect(result?.scheme).to.equal('file');
+        });
+
+        test('Should not treat single colon as URI scheme', () => {
+            // A path with a colon but not :// should be treated as a file
+            const filepath = 'c:somepath';
+
+            const result = resolveFilePath(filepath);
+
+            expect(result).to.not.be.undefined;
+            expect(result?.scheme).to.equal('file');
+        });
+    });
+});

From 4f98cf281b0d682f907ab22d60995797bd449cd9 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Fri, 5 Dec 2025 09:43:19 -0800
Subject: [PATCH 108/178] bump to use PET 2025.16 (#25633)

---
 build/azure-pipeline.stable.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build/azure-pipeline.stable.yml b/build/azure-pipeline.stable.yml
index 71399281efd9..1815605b278d 100644
--- a/build/azure-pipeline.stable.yml
+++ b/build/azure-pipeline.stable.yml
@@ -128,7 +128,7 @@ extends:
           project: 'Monaco'
           definition: 593
           buildVersionToDownload: 'latestFromBranch'
-          branchName: 'refs/heads/release/2025.14'
+          branchName: 'refs/heads/release/2025.16'
           targetPath: '$(Build.SourcesDirectory)/python-env-tools/bin'
           artifactName: 'bin-$(buildTarget)'
           itemPattern: |

From 7466d105c2016e2fa5fd978d218762b9d9cf4221 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Fri, 5 Dec 2025 10:45:32 -0800
Subject: [PATCH 109/178] bump version to 2025.20.0 (#25634)

---
 package-lock.json | 4 ++--
 package.json      | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index b3dd75602dc8..d124b8fc2353 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "python",
-    "version": "2025.19.0-dev",
+    "version": "2025.20.0",
     "lockfileVersion": 2,
     "requires": true,
     "packages": {
         "": {
             "name": "python",
-            "version": "2025.19.0-dev",
+            "version": "2025.20.0",
             "license": "MIT",
             "dependencies": {
                 "@iarna/toml": "^3.0.0",
diff --git a/package.json b/package.json
index 2d4e67425806..f0da2a5bfab3 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
     "name": "python",
     "displayName": "Python",
     "description": "Python language support with extension access points for IntelliSense (Pylance), Debugging (Python Debugger), linting, formatting, refactoring, unit tests, and more.",
-    "version": "2025.19.0-dev",
+    "version": "2025.20.0",
     "featureFlags": {
         "usingNewInterpreterStorage": true
     },

From 762180c240be60d92545590f40e836ec94f5425d Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Fri, 5 Dec 2025 10:56:55 -0800
Subject: [PATCH 110/178] bump version to 2025.21.0-dev (#25635)

---
 package-lock.json | 4 ++--
 package.json      | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index d124b8fc2353..402ccef65b8d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "python",
-    "version": "2025.20.0",
+    "version": "2025.21.0-dev",
     "lockfileVersion": 2,
     "requires": true,
     "packages": {
         "": {
             "name": "python",
-            "version": "2025.20.0",
+            "version": "2025.21.0-dev",
             "license": "MIT",
             "dependencies": {
                 "@iarna/toml": "^3.0.0",
diff --git a/package.json b/package.json
index f0da2a5bfab3..286e80baa2df 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
     "name": "python",
     "displayName": "Python",
     "description": "Python language support with extension access points for IntelliSense (Pylance), Debugging (Python Debugger), linting, formatting, refactoring, unit tests, and more.",
-    "version": "2025.20.0",
+    "version": "2025.21.0-dev",
     "featureFlags": {
         "usingNewInterpreterStorage": true
     },

From 6ec13c7c55c00e4f1180b4595358b82b6f28fa55 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Fri, 5 Dec 2025 11:21:00 -0800
Subject: [PATCH 111/178] Bump jws (#25627)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps and [jws](https://github.com/brianloveswords/node-jws). These
dependencies needed to be updated together.
Updates `jws` from 3.2.2 to 3.2.3
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/brianloveswords/node-jws/releases">jws's
releases</a>.</em></p>
<blockquote>
<h2>v3.2.3</h2>
<h3>Changed</h3>
<ul>
<li>Fix advisory GHSA-869p-cjfg-cm3x: createSign and createVerify now
require
that a non empty secret is provided (via opts.secret, opts.privateKey or
opts.key)
when using HMAC algorithms.</li>
<li>Upgrading JWA version to 1.4.2, addressing a compatibility issue for
Node &gt;= 25.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/auth0/node-jws/blob/master/CHANGELOG.md">jws's
changelog</a>.</em></p>
<blockquote>
<h2>[3.2.3]</h2>
<h3>Changed</h3>
<ul>
<li>Fix advisory GHSA-869p-cjfg-cm3x: createSign and createVerify now
require
that a non empty secret is provided (via opts.secret, opts.privateKey or
opts.key)
when using HMAC algorithms.</li>
<li>Upgrading JWA version to 1.4.2, adressing a compatibility issue for
Node &gt;= 25.</li>
</ul>
<h2>[3.0.0]</h2>
<h3>Changed</h3>
<ul>
<li><strong>BREAKING</strong>: <code>jwt.verify</code> now requires an
<code>algorithm</code> parameter, and
<code>jws.createVerify</code> requires an <code>algorithm</code> option.
The <code>&quot;alg&quot;</code> field
signature headers is ignored. This mitigates a critical security flaw
in the library which would allow an attacker to generate signatures with
arbitrary contents that would be accepted by <code>jwt.verify</code>.
See
<a
href="https://auth0.com/blog/2015/03/31/critical-vulnerabilities-in-json-web-token-libraries/">https://auth0.com/blog/2015/03/31/critical-vulnerabilities-in-json-web-token-libraries/</a>
for details.</li>
</ul>
<h2><a
href="https://github.com/brianloveswords/node-jws/compare/v1.0.1...v2.0.0">2.0.0</a>
- 2015-01-30</h2>
<h3>Changed</h3>
<ul>
<li>
<p><strong>BREAKING</strong>: Default payload encoding changed from
<code>binary</code> to
<code>utf8</code>. <code>utf8</code> is a is a more sensible default
than <code>binary</code> because
many payloads, as far as I can tell, will contain user-facing
strings that could be in any language. (<!-- raw HTML omitted --><a
href="https://github.com/brianloveswords/node-jws/commit/6b6de48">6b6de48</a><!--
raw HTML omitted -->)</p>
</li>
<li>
<p>Code reorganization, thanks <a
href="https://github.com/fearphage"><code>@​fearphage</code></a>! (<!--
raw HTML omitted --><a
href="https://github.com/brianloveswords/node-jws/commit/7880050">7880050</a><!--
raw HTML omitted -->)</p>
</li>
</ul>
<h3>Added</h3>
<ul>
<li>Option in all relevant methods for <code>encoding</code>. For those
few users
that might be depending on a <code>binary</code> encoding of the
messages, this
is for them. (<!-- raw HTML omitted --><a
href="https://github.com/brianloveswords/node-jws/commit/6b6de48">6b6de48</a><!--
raw HTML omitted -->)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/auth0/node-jws/commit/4f6e73f24df42f07d632dec6431ade8eda8d11a6"><code>4f6e73f</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/auth0/node-jws/commit/bd0fea57f35a97b6749a632b19ae5100d6d35729"><code>bd0fea5</code></a>
version 3.2.3</li>
<li><a
href="https://github.com/auth0/node-jws/commit/7c3b4b411004c206af8901fa3f8e644127bbf8d9"><code>7c3b4b4</code></a>
Enhance tests for HMAC streaming sign and verify</li>
<li><a
href="https://github.com/auth0/node-jws/commit/a9b8ed999de8f8fff486ac9167514577a0fae323"><code>a9b8ed9</code></a>
Improve secretOrKey initialization in VerifyStream</li>
<li><a
href="https://github.com/auth0/node-jws/commit/6707fde62cbae465a7f11e52760fb994dbc0e0dc"><code>6707fde</code></a>
Improve secret handling in SignStream</li>
<li>See full diff in <a
href="https://github.com/brianloveswords/node-jws/compare/v3.2.2...v3.2.3">compare
view</a></li>
</ul>
</details>
<details>
<summary>Maintainer changes</summary>
<p>This version was pushed to npm by <a
href="https://www.npmjs.com/~julien.wollscheid">julien.wollscheid</a>, a
new releaser for jws since your current version.</p>
</details>
<br />

Updates `jws` from 4.0.0 to 4.0.1
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/brianloveswords/node-jws/releases">jws's
releases</a>.</em></p>
<blockquote>
<h2>v3.2.3</h2>
<h3>Changed</h3>
<ul>
<li>Fix advisory GHSA-869p-cjfg-cm3x: createSign and createVerify now
require
that a non empty secret is provided (via opts.secret, opts.privateKey or
opts.key)
when using HMAC algorithms.</li>
<li>Upgrading JWA version to 1.4.2, addressing a compatibility issue for
Node &gt;= 25.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/auth0/node-jws/blob/master/CHANGELOG.md">jws's
changelog</a>.</em></p>
<blockquote>
<h2>[3.2.3]</h2>
<h3>Changed</h3>
<ul>
<li>Fix advisory GHSA-869p-cjfg-cm3x: createSign and createVerify now
require
that a non empty secret is provided (via opts.secret, opts.privateKey or
opts.key)
when using HMAC algorithms.</li>
<li>Upgrading JWA version to 1.4.2, adressing a compatibility issue for
Node &gt;= 25.</li>
</ul>
<h2>[3.0.0]</h2>
<h3>Changed</h3>
<ul>
<li><strong>BREAKING</strong>: <code>jwt.verify</code> now requires an
<code>algorithm</code> parameter, and
<code>jws.createVerify</code> requires an <code>algorithm</code> option.
The <code>&quot;alg&quot;</code> field
signature headers is ignored. This mitigates a critical security flaw
in the library which would allow an attacker to generate signatures with
arbitrary contents that would be accepted by <code>jwt.verify</code>.
See
<a
href="https://auth0.com/blog/2015/03/31/critical-vulnerabilities-in-json-web-token-libraries/">https://auth0.com/blog/2015/03/31/critical-vulnerabilities-in-json-web-token-libraries/</a>
for details.</li>
</ul>
<h2><a
href="https://github.com/brianloveswords/node-jws/compare/v1.0.1...v2.0.0">2.0.0</a>
- 2015-01-30</h2>
<h3>Changed</h3>
<ul>
<li>
<p><strong>BREAKING</strong>: Default payload encoding changed from
<code>binary</code> to
<code>utf8</code>. <code>utf8</code> is a is a more sensible default
than <code>binary</code> because
many payloads, as far as I can tell, will contain user-facing
strings that could be in any language. (<!-- raw HTML omitted --><a
href="https://github.com/brianloveswords/node-jws/commit/6b6de48">6b6de48</a><!--
raw HTML omitted -->)</p>
</li>
<li>
<p>Code reorganization, thanks <a
href="https://github.com/fearphage"><code>@​fearphage</code></a>! (<!--
raw HTML omitted --><a
href="https://github.com/brianloveswords/node-jws/commit/7880050">7880050</a><!--
raw HTML omitted -->)</p>
</li>
</ul>
<h3>Added</h3>
<ul>
<li>Option in all relevant methods for <code>encoding</code>. For those
few users
that might be depending on a <code>binary</code> encoding of the
messages, this
is for them. (<!-- raw HTML omitted --><a
href="https://github.com/brianloveswords/node-jws/commit/6b6de48">6b6de48</a><!--
raw HTML omitted -->)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/auth0/node-jws/commit/4f6e73f24df42f07d632dec6431ade8eda8d11a6"><code>4f6e73f</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/auth0/node-jws/commit/bd0fea57f35a97b6749a632b19ae5100d6d35729"><code>bd0fea5</code></a>
version 3.2.3</li>
<li><a
href="https://github.com/auth0/node-jws/commit/7c3b4b411004c206af8901fa3f8e644127bbf8d9"><code>7c3b4b4</code></a>
Enhance tests for HMAC streaming sign and verify</li>
<li><a
href="https://github.com/auth0/node-jws/commit/a9b8ed999de8f8fff486ac9167514577a0fae323"><code>a9b8ed9</code></a>
Improve secretOrKey initialization in VerifyStream</li>
<li><a
href="https://github.com/auth0/node-jws/commit/6707fde62cbae465a7f11e52760fb994dbc0e0dc"><code>6707fde</code></a>
Improve secret handling in SignStream</li>
<li>See full diff in <a
href="https://github.com/brianloveswords/node-jws/compare/v3.2.2...v3.2.3">compare
view</a></li>
</ul>
</details>
<details>
<summary>Maintainer changes</summary>
<p>This version was pushed to npm by <a
href="https://www.npmjs.com/~julien.wollscheid">julien.wollscheid</a>, a
new releaser for jws since your current version.</p>
</details>
<br />


Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
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- `@dependabot merge` will merge this PR after your CI passes on it
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You can disable automated security fix PRs for this repo from the
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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 package-lock.json | 64 +++++++++++++++++++++++------------------------
 1 file changed, 32 insertions(+), 32 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 402ccef65b8d..9d0c761b8e5f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9263,23 +9263,23 @@
             }
         },
         "node_modules/jsonwebtoken/node_modules/jwa": {
-            "version": "1.4.1",
-            "resolved": "https://registry.npmjs.org/jwa/-/jwa-1.4.1.tgz",
-            "integrity": "sha512-qiLX/xhEEFKUAJ6FiBMbes3w9ATzyk5W7Hvzpa/SLYdxNtng+gcurvrI7TbACjIXlsJyr05/S1oUhZrc63evQA==",
+            "version": "1.4.2",
+            "resolved": "https://registry.npmjs.org/jwa/-/jwa-1.4.2.tgz",
+            "integrity": "sha512-eeH5JO+21J78qMvTIDdBXidBd6nG2kZjg5Ohz/1fpa28Z4CcsWUzJ1ZZyFq/3z3N17aZy+ZuBoHljASbL1WfOw==",
             "dev": true,
             "dependencies": {
-                "buffer-equal-constant-time": "1.0.1",
+                "buffer-equal-constant-time": "^1.0.1",
                 "ecdsa-sig-formatter": "1.0.11",
                 "safe-buffer": "^5.0.1"
             }
         },
         "node_modules/jsonwebtoken/node_modules/jws": {
-            "version": "3.2.2",
-            "resolved": "https://registry.npmjs.org/jws/-/jws-3.2.2.tgz",
-            "integrity": "sha512-YHlZCB6lMTllWDtSPHz/ZXTsi8S00usEV6v1tjq8tOUZzw7DpSDWVXjXDre6ed1w/pd495ODpHZYSdkRTsa0HA==",
+            "version": "3.2.3",
+            "resolved": "https://registry.npmjs.org/jws/-/jws-3.2.3.tgz",
+            "integrity": "sha512-byiJ0FLRdLdSVSReO/U4E7RoEyOCKnEnEPMjq3HxWtvzLsV08/i5RQKsFVNkCldrCaPr2vDNAOMsfs8T/Hze7g==",
             "dev": true,
             "dependencies": {
-                "jwa": "^1.4.1",
+                "jwa": "^1.4.2",
                 "safe-buffer": "^5.0.1"
             }
         },
@@ -9315,23 +9315,23 @@
             "dev": true
         },
         "node_modules/jwa": {
-            "version": "2.0.0",
-            "resolved": "https://registry.npmjs.org/jwa/-/jwa-2.0.0.tgz",
-            "integrity": "sha512-jrZ2Qx916EA+fq9cEAeCROWPTfCwi1IVHqT2tapuqLEVVDKFDENFw1oL+MwrTvH6msKxsd1YTDVw6uKEcsrLEA==",
+            "version": "2.0.1",
+            "resolved": "https://registry.npmjs.org/jwa/-/jwa-2.0.1.tgz",
+            "integrity": "sha512-hRF04fqJIP8Abbkq5NKGN0Bbr3JxlQ+qhZufXVr0DvujKy93ZCbXZMHDL4EOtodSbCWxOqR8MS1tXA5hwqCXDg==",
             "dev": true,
             "dependencies": {
-                "buffer-equal-constant-time": "1.0.1",
+                "buffer-equal-constant-time": "^1.0.1",
                 "ecdsa-sig-formatter": "1.0.11",
                 "safe-buffer": "^5.0.1"
             }
         },
         "node_modules/jws": {
-            "version": "4.0.0",
-            "resolved": "https://registry.npmjs.org/jws/-/jws-4.0.0.tgz",
-            "integrity": "sha512-KDncfTmOZoOMTFG4mBlG0qUIOlc03fmzH+ru6RgYVZhPkyiy/92Owlt/8UEN+a4TXR1FQetfIpJE8ApdvdVxTg==",
+            "version": "4.0.1",
+            "resolved": "https://registry.npmjs.org/jws/-/jws-4.0.1.tgz",
+            "integrity": "sha512-EKI/M/yqPncGUUh44xz0PxSidXFr/+r0pA70+gIYhjv+et7yxM+s29Y+VGDkovRofQem0fs7Uvf4+YmAdyRduA==",
             "dev": true,
             "dependencies": {
-                "jwa": "^2.0.0",
+                "jwa": "^2.0.1",
                 "safe-buffer": "^5.0.1"
             }
         },
@@ -22114,23 +22114,23 @@
             },
             "dependencies": {
                 "jwa": {
-                    "version": "1.4.1",
-                    "resolved": "https://registry.npmjs.org/jwa/-/jwa-1.4.1.tgz",
-                    "integrity": "sha512-qiLX/xhEEFKUAJ6FiBMbes3w9ATzyk5W7Hvzpa/SLYdxNtng+gcurvrI7TbACjIXlsJyr05/S1oUhZrc63evQA==",
+                    "version": "1.4.2",
+                    "resolved": "https://registry.npmjs.org/jwa/-/jwa-1.4.2.tgz",
+                    "integrity": "sha512-eeH5JO+21J78qMvTIDdBXidBd6nG2kZjg5Ohz/1fpa28Z4CcsWUzJ1ZZyFq/3z3N17aZy+ZuBoHljASbL1WfOw==",
                     "dev": true,
                     "requires": {
-                        "buffer-equal-constant-time": "1.0.1",
+                        "buffer-equal-constant-time": "^1.0.1",
                         "ecdsa-sig-formatter": "1.0.11",
                         "safe-buffer": "^5.0.1"
                     }
                 },
                 "jws": {
-                    "version": "3.2.2",
-                    "resolved": "https://registry.npmjs.org/jws/-/jws-3.2.2.tgz",
-                    "integrity": "sha512-YHlZCB6lMTllWDtSPHz/ZXTsi8S00usEV6v1tjq8tOUZzw7DpSDWVXjXDre6ed1w/pd495ODpHZYSdkRTsa0HA==",
+                    "version": "3.2.3",
+                    "resolved": "https://registry.npmjs.org/jws/-/jws-3.2.3.tgz",
+                    "integrity": "sha512-byiJ0FLRdLdSVSReO/U4E7RoEyOCKnEnEPMjq3HxWtvzLsV08/i5RQKsFVNkCldrCaPr2vDNAOMsfs8T/Hze7g==",
                     "dev": true,
                     "requires": {
-                        "jwa": "^1.4.1",
+                        "jwa": "^1.4.2",
                         "safe-buffer": "^5.0.1"
                     }
                 }
@@ -22165,23 +22165,23 @@
             "dev": true
         },
         "jwa": {
-            "version": "2.0.0",
-            "resolved": "https://registry.npmjs.org/jwa/-/jwa-2.0.0.tgz",
-            "integrity": "sha512-jrZ2Qx916EA+fq9cEAeCROWPTfCwi1IVHqT2tapuqLEVVDKFDENFw1oL+MwrTvH6msKxsd1YTDVw6uKEcsrLEA==",
+            "version": "2.0.1",
+            "resolved": "https://registry.npmjs.org/jwa/-/jwa-2.0.1.tgz",
+            "integrity": "sha512-hRF04fqJIP8Abbkq5NKGN0Bbr3JxlQ+qhZufXVr0DvujKy93ZCbXZMHDL4EOtodSbCWxOqR8MS1tXA5hwqCXDg==",
             "dev": true,
             "requires": {
-                "buffer-equal-constant-time": "1.0.1",
+                "buffer-equal-constant-time": "^1.0.1",
                 "ecdsa-sig-formatter": "1.0.11",
                 "safe-buffer": "^5.0.1"
             }
         },
         "jws": {
-            "version": "4.0.0",
-            "resolved": "https://registry.npmjs.org/jws/-/jws-4.0.0.tgz",
-            "integrity": "sha512-KDncfTmOZoOMTFG4mBlG0qUIOlc03fmzH+ru6RgYVZhPkyiy/92Owlt/8UEN+a4TXR1FQetfIpJE8ApdvdVxTg==",
+            "version": "4.0.1",
+            "resolved": "https://registry.npmjs.org/jws/-/jws-4.0.1.tgz",
+            "integrity": "sha512-EKI/M/yqPncGUUh44xz0PxSidXFr/+r0pA70+gIYhjv+et7yxM+s29Y+VGDkovRofQem0fs7Uvf4+YmAdyRduA==",
             "dev": true,
             "requires": {
-                "jwa": "^2.0.0",
+                "jwa": "^2.0.1",
                 "safe-buffer": "^5.0.1"
             }
         },

From 7e11d0691bfa74e1bf08c22ac6eacd27424dc2fe Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Mon, 8 Dec 2025 07:57:01 -0800
Subject: [PATCH 112/178] refactor test resultResolver (#25619)

---
 .../testing-workflow.instructions.md          | 580 +++++++++++
 .../testController/common/resultResolver.ts   | 476 ++-------
 .../common/testCoverageHandler.ts             |  93 ++
 .../common/testDiscoveryHandler.ts            | 104 ++
 .../common/testExecutionHandler.ts            | 231 +++++
 .../testController/common/testItemIndex.ts    | 225 +++++
 .../testing/common/testingAdapter.test.ts     | 152 +--
 .../common/testCoverageHandler.unit.test.ts   | 502 ++++++++++
 .../common/testDiscoveryHandler.unit.test.ts  | 517 ++++++++++
 .../common/testExecutionHandler.unit.test.ts  | 922 ++++++++++++++++++
 .../common/testItemIndex.unit.test.ts         | 359 +++++++
 .../resultResolver.unit.test.ts               |  49 +-
 src/test/vscode-mock.ts                       |  14 +
 13 files changed, 3720 insertions(+), 504 deletions(-)
 create mode 100644 .github/instructions/testing-workflow.instructions.md
 create mode 100644 src/client/testing/testController/common/testCoverageHandler.ts
 create mode 100644 src/client/testing/testController/common/testDiscoveryHandler.ts
 create mode 100644 src/client/testing/testController/common/testExecutionHandler.ts
 create mode 100644 src/client/testing/testController/common/testItemIndex.ts
 create mode 100644 src/test/testing/testController/common/testCoverageHandler.unit.test.ts
 create mode 100644 src/test/testing/testController/common/testDiscoveryHandler.unit.test.ts
 create mode 100644 src/test/testing/testController/common/testExecutionHandler.unit.test.ts
 create mode 100644 src/test/testing/testController/common/testItemIndex.unit.test.ts

diff --git a/.github/instructions/testing-workflow.instructions.md b/.github/instructions/testing-workflow.instructions.md
new file mode 100644
index 000000000000..948886a59635
--- /dev/null
+++ b/.github/instructions/testing-workflow.instructions.md
@@ -0,0 +1,580 @@
+---
+applyTo: '**/test/**'
+---
+
+# AI Testing Workflow Guide: Write, Run, and Fix Tests
+
+This guide provides comprehensive instructions for AI agents on the complete testing workflow: writing tests, running them, diagnosing failures, and fixing issues. Use this guide whenever working with test files or when users request testing tasks.
+
+## Complete Testing Workflow
+
+This guide covers the full testing lifecycle:
+
+1. **📝 Writing Tests** - Create comprehensive test suites
+2. **▶️ Running Tests** - Execute tests using VS Code tools
+3. **🔍 Diagnosing Issues** - Analyze failures and errors
+4. **🛠️ Fixing Problems** - Resolve compilation and runtime issues
+5. **✅ Validation** - Ensure coverage and resilience
+
+### When to Use This Guide
+
+**User Requests Testing:**
+
+-   "Write tests for this function"
+-   "Run the tests"
+-   "Fix the failing tests"
+-   "Test this code"
+-   "Add test coverage"
+
+**File Context Triggers:**
+
+-   Working in `**/test/**` directories
+-   Files ending in `.test.ts` or `.unit.test.ts`
+-   Test failures or compilation errors
+-   Coverage reports or test output analysis
+
+## Test Types
+
+When implementing tests as an AI agent, choose between two main types:
+
+### Unit Tests (`*.unit.test.ts`)
+
+-   **Fast isolated testing** - Mock all external dependencies
+-   **Use for**: Pure functions, business logic, data transformations
+-   **Execute with**: `runTests` tool with specific file patterns
+-   **Mock everything** - VS Code APIs automatically mocked via `/src/test/unittests.ts`
+
+### Extension Tests (`*.test.ts`)
+
+-   **Full VS Code integration** - Real environment with actual APIs
+-   **Use for**: Command registration, UI interactions, extension lifecycle
+-   **Execute with**: VS Code launch configurations or `runTests` tool
+-   **Slower but comprehensive** - Tests complete user workflows
+
+## 🤖 Agent Tool Usage for Test Execution
+
+### Primary Tool: `runTests`
+
+Use the `runTests` tool to execute tests programmatically rather than terminal commands for better integration and result parsing:
+
+```typescript
+// Run specific test files
+await runTests({
+    files: ['/absolute/path/to/test.unit.test.ts'],
+    mode: 'run',
+});
+
+// Run tests with coverage
+await runTests({
+    files: ['/absolute/path/to/test.unit.test.ts'],
+    mode: 'coverage',
+    coverageFiles: ['/absolute/path/to/source.ts'],
+});
+
+// Run specific test names
+await runTests({
+    files: ['/absolute/path/to/test.unit.test.ts'],
+    testNames: ['should handle edge case', 'should validate input'],
+});
+```
+
+### Compilation Requirements
+
+Before running tests, ensure compilation. Always start compilation with `npm run watch-tests` before test execution to ensure TypeScript files are built. Recompile after making import/export changes before running tests, as stubs won't work if they're applied to old compiled JavaScript that doesn't have the updated imports:
+
+```typescript
+// Start watch mode for auto-compilation
+await run_in_terminal({
+    command: 'npm run watch-tests',
+    isBackground: true,
+    explanation: 'Start test compilation in watch mode',
+});
+
+// Or compile manually
+await run_in_terminal({
+    command: 'npm run compile-tests',
+    isBackground: false,
+    explanation: 'Compile TypeScript test files',
+});
+```
+
+### Alternative: Terminal Execution
+
+For targeted test runs when `runTests` tool is unavailable. Note: When a targeted test run yields 0 tests, first verify the compiled JS exists under `out/test` (rootDir is `src`); absence almost always means the test file sits outside `src` or compilation hasn't run yet:
+
+```typescript
+// Run specific test suite
+await run_in_terminal({
+    command: 'npm run unittest -- --grep "Suite Name"',
+    isBackground: false,
+    explanation: 'Run targeted unit tests',
+});
+```
+
+## 🔍 Diagnosing Test Failures
+
+### Common Failure Patterns
+
+**Compilation Errors:**
+
+```typescript
+// Missing imports
+if (error.includes('Cannot find module')) {
+    await addMissingImports(testFile);
+}
+
+// Type mismatches
+if (error.includes("Type '" && error.includes("' is not assignable"))) {
+    await fixTypeIssues(testFile);
+}
+```
+
+**Runtime Errors:**
+
+```typescript
+// Mock setup issues
+if (error.includes('stub') || error.includes('mock')) {
+    await fixMockConfiguration(testFile);
+}
+
+// Assertion failures
+if (error.includes('AssertionError')) {
+    await analyzeAssertionFailure(error);
+}
+```
+
+### Systematic Failure Analysis
+
+Fix test issues iteratively - run tests, analyze failures, apply fixes, repeat until passing. When unit tests fail with VS Code API errors like `TypeError: X is not a constructor` or `Cannot read properties of undefined (reading 'Y')`, check if VS Code APIs are properly mocked in `/src/test/unittests.ts` - add missing APIs following the existing pattern.
+
+```typescript
+interface TestFailureAnalysis {
+    type: 'compilation' | 'runtime' | 'assertion' | 'timeout';
+    message: string;
+    location: { file: string; line: number; col: number };
+    suggestedFix: string;
+}
+
+function analyzeFailure(failure: TestFailure): TestFailureAnalysis {
+    if (failure.message.includes('Cannot find module')) {
+        return {
+            type: 'compilation',
+            message: failure.message,
+            location: failure.location,
+            suggestedFix: 'Add missing import statement',
+        };
+    }
+    // ... other failure patterns
+}
+```
+
+### Agent Decision Logic for Test Type Selection
+
+**Choose Unit Tests (`*.unit.test.ts`) when analyzing:**
+
+-   Functions with clear inputs/outputs and no VS Code API dependencies
+-   Data transformation, parsing, or utility functions
+-   Business logic that can be isolated with mocks
+-   Error handling scenarios with predictable inputs
+
+**Choose Extension Tests (`*.test.ts`) when analyzing:**
+
+-   Functions that register VS Code commands or use `vscode.*` APIs
+-   UI components, tree views, or command palette interactions
+-   File system operations requiring workspace context
+-   Extension lifecycle events (activation, deactivation)
+
+**Agent Implementation Pattern:**
+
+```typescript
+function determineTestType(functionCode: string): 'unit' | 'extension' {
+    if (
+        functionCode.includes('vscode.') ||
+        functionCode.includes('commands.register') ||
+        functionCode.includes('window.') ||
+        functionCode.includes('workspace.')
+    ) {
+        return 'extension';
+    }
+    return 'unit';
+}
+```
+
+## 🎯 Step 1: Automated Function Analysis
+
+As an AI agent, analyze the target function systematically:
+
+### Code Analysis Checklist
+
+```typescript
+interface FunctionAnalysis {
+    name: string;
+    inputs: string[]; // Parameter types and names
+    outputs: string; // Return type
+    dependencies: string[]; // External modules/APIs used
+    sideEffects: string[]; // Logging, file system, network calls
+    errorPaths: string[]; // Exception scenarios
+    testType: 'unit' | 'extension';
+}
+```
+
+### Analysis Implementation
+
+1. **Read function source** using `read_file` tool
+2. **Identify imports** - look for `vscode.*`, `child_process`, `fs`, etc.
+3. **Map data flow** - trace inputs through transformations to outputs
+4. **Catalog dependencies** - external calls that need mocking
+5. **Document side effects** - logging, file operations, state changes
+
+### Test Setup Differences
+
+#### Unit Test Setup (\*.unit.test.ts)
+
+```typescript
+// Mock VS Code APIs - handled automatically by unittests.ts
+import * as sinon from 'sinon';
+import * as workspaceApis from '../../common/workspace.apis'; // Wrapper functions
+
+// Stub wrapper functions, not VS Code APIs directly
+// Always mock wrapper functions (e.g., workspaceApis.getConfiguration()) instead of
+// VS Code APIs directly to avoid stubbing issues
+const mockGetConfiguration = sinon.stub(workspaceApis, 'getConfiguration');
+```
+
+#### Extension Test Setup (\*.test.ts)
+
+```typescript
+// Use real VS Code APIs
+import * as vscode from 'vscode';
+
+// Real VS Code APIs available - no mocking needed
+const config = vscode.workspace.getConfiguration('python');
+```
+
+## 🎯 Step 2: Generate Test Coverage Matrix
+
+Based on function analysis, automatically generate comprehensive test scenarios:
+
+### Coverage Matrix Generation
+
+```typescript
+interface TestScenario {
+    category: 'happy-path' | 'edge-case' | 'error-handling' | 'side-effects';
+    description: string;
+    inputs: Record<string, any>;
+    expectedOutput?: any;
+    expectedSideEffects?: string[];
+    shouldThrow?: boolean;
+}
+```
+
+### Automated Scenario Creation
+
+1. **Happy Path**: Normal execution with typical inputs
+2. **Edge Cases**: Boundary conditions, empty/null inputs, unusual but valid data
+3. **Error Scenarios**: Invalid inputs, dependency failures, exception paths
+4. **Side Effects**: Verify logging calls, file operations, state changes
+
+### Agent Pattern for Scenario Generation
+
+```typescript
+function generateTestScenarios(analysis: FunctionAnalysis): TestScenario[] {
+    const scenarios: TestScenario[] = [];
+
+    // Generate happy path for each input combination
+    scenarios.push(...generateHappyPathScenarios(analysis));
+
+    // Generate edge cases for boundary conditions
+    scenarios.push(...generateEdgeCaseScenarios(analysis));
+
+    // Generate error scenarios for each dependency
+    scenarios.push(...generateErrorScenarios(analysis));
+
+    return scenarios;
+}
+```
+
+## 🗺️ Step 3: Plan Your Test Coverage
+
+### Create a Test Coverage Matrix
+
+#### Main Flows
+
+-   ✅ **Happy path scenarios** - normal expected usage
+-   ✅ **Alternative paths** - different configuration combinations
+-   ✅ **Integration scenarios** - multiple features working together
+
+#### Edge Cases
+
+-   🔸 **Boundary conditions** - empty inputs, missing data
+-   🔸 **Error scenarios** - network failures, permission errors
+-   🔸 **Data validation** - invalid inputs, type mismatches
+
+#### Real-World Scenarios
+
+-   ✅ **Fresh install** - clean slate
+-   ✅ **Existing user** - migration scenarios
+-   ✅ **Power user** - complex configurations
+-   🔸 **Error recovery** - graceful degradation
+
+### Example Test Plan Structure
+
+```markdown
+## Test Categories
+
+### 1. Configuration Migration Tests
+
+-   No legacy settings exist
+-   Legacy settings already migrated
+-   Fresh migration needed
+-   Partial migration required
+-   Migration failures
+
+### 2. Configuration Source Tests
+
+-   Global search paths
+-   Workspace search paths
+-   Settings precedence
+-   Configuration errors
+
+### 3. Path Resolution Tests
+
+-   Absolute vs relative paths
+-   Workspace folder resolution
+-   Path validation and filtering
+
+### 4. Integration Scenarios
+
+-   Combined configurations
+-   Deduplication logic
+-   Error handling flows
+```
+
+## 🔧 Step 4: Set Up Your Test Infrastructure
+
+### Test File Structure
+
+```typescript
+// 1. Imports - group logically
+import assert from 'node:assert';
+import * as sinon from 'sinon';
+import { Uri } from 'vscode';
+import * as logging from '../../../common/logging';
+import * as pathUtils from '../../../common/utils/pathUtils';
+import * as workspaceApis from '../../../common/workspace.apis';
+
+// 2. Function under test
+import { getAllExtraSearchPaths } from '../../../managers/common/nativePythonFinder';
+
+// 3. Mock interfaces
+interface MockWorkspaceConfig {
+    get: sinon.SinonStub;
+    inspect: sinon.SinonStub;
+    update: sinon.SinonStub;
+}
+```
+
+### Mock Setup Strategy
+
+Create minimal mock objects with only required methods and use TypeScript type assertions (e.g., `mockApi as PythonEnvironmentApi`) to satisfy interface requirements instead of implementing all interface methods when only specific methods are needed for the test. Simplify mock setup by only mocking methods actually used in tests and use `as unknown as Type` for TypeScript compatibility.
+
+```typescript
+suite('Function Integration Tests', () => {
+    // 1. Declare all mocks
+    let mockGetConfiguration: sinon.SinonStub;
+    let mockGetWorkspaceFolders: sinon.SinonStub;
+    let mockTraceLog: sinon.SinonStub;
+    let mockTraceError: sinon.SinonStub;
+    let mockTraceWarn: sinon.SinonStub;
+
+    // 2. Mock complex objects
+    let pythonConfig: MockWorkspaceConfig;
+    let envConfig: MockWorkspaceConfig;
+
+    setup(() => {
+        // 3. Initialize all mocks
+        mockGetConfiguration = sinon.stub(workspaceApis, 'getConfiguration');
+        mockGetWorkspaceFolders = sinon.stub(workspaceApis, 'getWorkspaceFolders');
+        mockTraceLog = sinon.stub(logging, 'traceLog');
+        mockTraceError = sinon.stub(logging, 'traceError');
+        mockTraceWarn = sinon.stub(logging, 'traceWarn');
+
+        // 4. Set up default behaviors
+        mockGetWorkspaceFolders.returns(undefined);
+
+        // 5. Create mock configuration objects
+        // When fixing mock environment creation, use null to truly omit
+        // properties rather than undefined
+        pythonConfig = {
+            get: sinon.stub(),
+            inspect: sinon.stub(),
+            update: sinon.stub(),
+        };
+
+        envConfig = {
+            get: sinon.stub(),
+            inspect: sinon.stub(),
+            update: sinon.stub(),
+        };
+    });
+
+    teardown(() => {
+        sinon.restore(); // Always clean up!
+    });
+});
+```
+
+## Step 4: Write Tests Using Mock → Run → Assert Pattern
+
+### The Three-Phase Pattern
+
+#### Phase 1: Mock (Set up the scenario)
+
+```typescript
+test('Description of what this tests', async () => {
+    // Mock → Clear description of the scenario
+    pythonConfig.inspect.withArgs('venvPath').returns({ globalValue: '/path' });
+    envConfig.inspect.withArgs('globalSearchPaths').returns({ globalValue: [] });
+    mockGetWorkspaceFolders.returns([{ uri: Uri.file('/workspace') }]);
+```
+
+#### Phase 2: Run (Execute the function)
+
+```typescript
+// Run
+const result = await getAllExtraSearchPaths();
+```
+
+#### Phase 3: Assert (Verify the behavior)
+
+```typescript
+    // Assert - Use set-based comparison for order-agnostic testing
+    const expected = new Set(['/expected', '/paths']);
+    const actual = new Set(result);
+    assert.strictEqual(actual.size, expected.size, 'Should have correct number of paths');
+    assert.deepStrictEqual(actual, expected, 'Should contain exactly the expected paths');
+
+    // Verify side effects
+    // Use sinon.match() patterns for resilient assertions that don't break on minor output changes
+    assert(mockTraceLog.calledWith(sinon.match(/completion/i)), 'Should log completion');
+});
+```
+
+## Step 6: Make Tests Resilient
+
+### Use Order-Agnostic Comparisons
+
+```typescript
+// ❌ Brittle - depends on order
+assert.deepStrictEqual(result, ['/path1', '/path2', '/path3']);
+
+// ✅ Resilient - order doesn't matter
+const expected = new Set(['/path1', '/path2', '/path3']);
+const actual = new Set(result);
+assert.strictEqual(actual.size, expected.size, 'Should have correct number of paths');
+assert.deepStrictEqual(actual, expected, 'Should contain exactly the expected paths');
+```
+
+### Use Flexible Error Message Testing
+
+```typescript
+// ❌ Brittle - exact text matching
+assert(mockTraceError.calledWith('Error during legacy python settings migration:'));
+
+// ✅ Resilient - pattern matching
+assert(mockTraceError.calledWith(sinon.match.string, sinon.match.instanceOf(Error)), 'Should log migration error');
+
+// ✅ Resilient - key terms with regex
+assert(mockTraceError.calledWith(sinon.match(/migration.*error/i)), 'Should log migration error');
+```
+
+### Handle Complex Mock Scenarios
+
+```typescript
+// For functions that call the same mock multiple times
+envConfig.inspect.withArgs('globalSearchPaths').returns({ globalValue: [] });
+envConfig.inspect
+    .withArgs('globalSearchPaths')
+    .onSecondCall()
+    .returns({
+        globalValue: ['/migrated/paths'],
+    });
+
+// Testing async functions with child processes:
+// Call the function first to get a promise, then use setTimeout to emit mock events,
+// then await the promise - this ensures proper timing of mock setup versus function execution
+
+// Cannot stub internal function calls within the same module after import - stub external
+// dependencies instead (e.g., stub childProcessApis.spawnProcess rather than trying to stub
+// helpers.isUvInstalled when testing helpers.shouldUseUv) because intra-module calls use
+// direct references, not module exports
+```
+
+## 🧪 Step 7: Test Categories and Patterns
+
+### Configuration Tests
+
+-   Test different setting combinations
+-   Test setting precedence (workspace > user > default)
+-   Test configuration errors and recovery
+-   Always use dynamic path construction with Node.js `path` module when testing functions that resolve paths against workspace folders to ensure cross-platform compatibility
+
+### Data Flow Tests
+
+-   Test how data moves through the system
+-   Test transformations (path resolution, filtering)
+-   Test state changes (migrations, updates)
+
+### Error Handling Tests
+
+-   Test graceful degradation
+-   Test error logging
+-   Test fallback behaviors
+
+### Integration Tests
+
+-   Test multiple features together
+-   Test real-world scenarios
+-   Test edge case combinations
+
+## 📊 Step 8: Review and Refine
+
+### Test Quality Checklist
+
+-   [ ] **Clear naming** - test names describe the scenario and expected outcome
+-   [ ] **Good coverage** - main flows, edge cases, error scenarios
+-   [ ] **Resilient assertions** - won't break due to minor changes
+-   [ ] **Readable structure** - follows Mock → Run → Assert pattern
+-   [ ] **Isolated tests** - each test is independent
+-   [ ] **Fast execution** - tests run quickly with proper mocking
+
+### Common Anti-Patterns to Avoid
+
+-   ❌ Testing implementation details instead of behavior
+-   ❌ Brittle assertions that break on cosmetic changes
+-   ❌ Order-dependent tests that fail due to processing changes
+-   ❌ Tests that don't clean up mocks properly
+-   ❌ Overly complex test setup that's hard to understand
+
+## 🔄 Reviewing and Improving Existing Tests
+
+### Quick Review Process
+
+1. **Read test files** - Check structure and mock setup
+2. **Run tests** - Establish baseline functionality
+3. **Apply improvements** - Use patterns below. When reviewing existing tests, focus on behavior rather than implementation details in test names and assertions
+4. **Verify** - Ensure tests still pass
+
+### Common Fixes
+
+-   Over-complex mocks → Minimal mocks with only needed methods
+-   Brittle assertions → Behavior-focused with error messages
+-   Vague test names → Clear scenario descriptions (transform "should return X when Y" into "should [expected behavior] when [scenario context]")
+-   Missing structure → Mock → Run → Assert pattern
+-   Untestable Node.js APIs → Create proxy abstraction functions (use function overloads to preserve intelligent typing while making functions mockable)
+
+## 🧠 Agent Learnings
+
+-   When mocking `testController.createTestItem()` in unit tests, use `typemoq.It.isAny()` for parameters when testing handler behavior (not ID/label generation logic), but consider using specific matchers (e.g., `It.is((id: string) => id.startsWith('_error_'))`) when the actual values being passed are important for correctness - this balances test precision with maintainability (2)
+-   Remove unused variables from test code immediately - leftover tracking variables like `validationCallCount` that aren't referenced indicate dead code that should be simplified (1)
+-   Use `Uri.file(path).fsPath` for both sides of path comparisons in tests to ensure cross-platform compatibility - Windows converts forward slashes to backslashes automatically (1)
diff --git a/src/client/testing/testController/common/resultResolver.ts b/src/client/testing/testController/common/resultResolver.ts
index b92e7a870f20..959d08fee1a9 100644
--- a/src/client/testing/testController/common/resultResolver.ts
+++ b/src/client/testing/testController/common/resultResolver.ts
@@ -1,470 +1,106 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 
-import {
-    CancellationToken,
-    TestController,
-    TestItem,
-    Uri,
-    TestMessage,
-    Location,
-    TestRun,
-    MarkdownString,
-    TestCoverageCount,
-    FileCoverage,
-    FileCoverageDetail,
-    StatementCoverage,
-    Range,
-} from 'vscode';
-import * as util from 'util';
-import {
-    CoveragePayload,
-    DiscoveredTestPayload,
-    ExecutionTestPayload,
-    FileCoverageMetrics,
-    ITestResultResolver,
-} from './types';
+import { CancellationToken, TestController, TestItem, Uri, TestRun, FileCoverageDetail } from 'vscode';
+import { CoveragePayload, DiscoveredTestPayload, ExecutionTestPayload, ITestResultResolver } from './types';
 import { TestProvider } from '../../types';
-import { traceError, traceVerbose } from '../../../logging';
-import { Testing } from '../../../common/utils/localize';
-import { clearAllChildren, createErrorTestItem, getTestCaseNodes } from './testItemUtilities';
+import { traceInfo } from '../../../logging';
 import { sendTelemetryEvent } from '../../../telemetry';
 import { EventName } from '../../../telemetry/constants';
-import { splitLines } from '../../../common/stringUtils';
-import { buildErrorNodeOptions, populateTestTree, splitTestNameWithRegex } from './utils';
+import { TestItemIndex } from './testItemIndex';
+import { TestDiscoveryHandler } from './testDiscoveryHandler';
+import { TestExecutionHandler } from './testExecutionHandler';
+import { TestCoverageHandler } from './testCoverageHandler';
 
 export class PythonResultResolver implements ITestResultResolver {
     testController: TestController;
 
     testProvider: TestProvider;
 
-    public runIdToTestItem: Map<string, TestItem>;
+    private testItemIndex: TestItemIndex;
 
-    public runIdToVSid: Map<string, string>;
-
-    public vsIdToRunId: Map<string, string>;
-
-    public subTestStats: Map<string, { passed: number; failed: number }> = new Map();
+    // Shared singleton handlers
+    private static discoveryHandler: TestDiscoveryHandler = new TestDiscoveryHandler();
+    private static executionHandler: TestExecutionHandler = new TestExecutionHandler();
+    private static coverageHandler: TestCoverageHandler = new TestCoverageHandler();
 
     public detailedCoverageMap = new Map<string, FileCoverageDetail[]>();
 
     constructor(testController: TestController, testProvider: TestProvider, private workspaceUri: Uri) {
         this.testController = testController;
         this.testProvider = testProvider;
-
-        this.runIdToTestItem = new Map<string, TestItem>();
-        this.runIdToVSid = new Map<string, string>();
-        this.vsIdToRunId = new Map<string, string>();
+        // Initialize a new TestItemIndex which will be used to track test items in this workspace
+        this.testItemIndex = new TestItemIndex();
     }
 
-    public resolveDiscovery(payload: DiscoveredTestPayload, token?: CancellationToken): void {
-        if (!payload) {
-            // No test data is available
-        } else {
-            this._resolveDiscovery(payload as DiscoveredTestPayload, token);
-        }
+    // Expose for backward compatibility (WorkspaceTestAdapter accesses these)
+    public get runIdToTestItem(): Map<string, TestItem> {
+        return this.testItemIndex.runIdToTestItemMap;
     }
 
-    public _resolveDiscovery(payload: DiscoveredTestPayload, token?: CancellationToken): void {
-        const workspacePath = this.workspaceUri.fsPath;
-        const rawTestData = payload as DiscoveredTestPayload;
-        // Check if there were any errors in the discovery process.
-        if (rawTestData.status === 'error') {
-            const testingErrorConst =
-                this.testProvider === 'pytest' ? Testing.errorPytestDiscovery : Testing.errorUnittestDiscovery;
-            const { error } = rawTestData;
-            traceError(testingErrorConst, 'for workspace: ', workspacePath, '\r\n', error?.join('\r\n\r\n') ?? '');
-
-            let errorNode = this.testController.items.get(`DiscoveryError:${workspacePath}`);
-            const message = util.format(
-                `${testingErrorConst} ${Testing.seePythonOutput}\r\n`,
-                error?.join('\r\n\r\n') ?? '',
-            );
-
-            if (errorNode === undefined) {
-                const options = buildErrorNodeOptions(this.workspaceUri, message, this.testProvider);
-                errorNode = createErrorTestItem(this.testController, options);
-                this.testController.items.add(errorNode);
-            }
-            const errorNodeLabel: MarkdownString = new MarkdownString(
-                `[Show output](command:python.viewOutput) to view error logs`,
-            );
-            errorNodeLabel.isTrusted = true;
-            errorNode.error = errorNodeLabel;
-        } else {
-            // remove error node only if no errors exist.
-            this.testController.items.delete(`DiscoveryError:${workspacePath}`);
-        }
-        if (rawTestData.tests || rawTestData.tests === null) {
-            // if any tests exist, they should be populated in the test tree, regardless of whether there were errors or not.
-            // parse and insert test data.
-
-            // Clear existing mappings before rebuilding test tree
-            this.runIdToTestItem.clear();
-            this.runIdToVSid.clear();
-            this.vsIdToRunId.clear();
+    public get runIdToVSid(): Map<string, string> {
+        return this.testItemIndex.runIdToVSidMap;
+    }
 
-            // If the test root for this folder exists: Workspace refresh, update its children.
-            // Otherwise, it is a freshly discovered workspace, and we need to create a new test root and populate the test tree.
-            populateTestTree(this.testController, rawTestData.tests, undefined, this, token);
-        }
+    public get vsIdToRunId(): Map<string, string> {
+        return this.testItemIndex.vsIdToRunIdMap;
+    }
 
+    public resolveDiscovery(payload: DiscoveredTestPayload, token?: CancellationToken): void {
+        PythonResultResolver.discoveryHandler.processDiscovery(
+            payload,
+            this.testController,
+            this.testItemIndex,
+            this.workspaceUri,
+            this.testProvider,
+            token,
+        );
         sendTelemetryEvent(EventName.UNITTEST_DISCOVERY_DONE, undefined, {
             tool: this.testProvider,
             failed: false,
         });
     }
 
+    public _resolveDiscovery(payload: DiscoveredTestPayload, token?: CancellationToken): void {
+        // Delegate to the public method for backward compatibility
+        this.resolveDiscovery(payload, token);
+    }
+
     public resolveExecution(payload: ExecutionTestPayload | CoveragePayload, runInstance: TestRun): void {
         if ('coverage' in payload) {
             // coverage data is sent once per connection
-            traceVerbose('Coverage data received.');
-            this._resolveCoverage(payload as CoveragePayload, runInstance);
+            traceInfo('Coverage data received, processing...');
+            this.detailedCoverageMap = PythonResultResolver.coverageHandler.processCoverage(
+                payload as CoveragePayload,
+                runInstance,
+            );
+            traceInfo('Coverage data processing complete.');
         } else {
-            this._resolveExecution(payload as ExecutionTestPayload, runInstance);
-        }
-    }
-
-    public _resolveCoverage(payload: CoveragePayload, runInstance: TestRun): void {
-        if (payload.result === undefined) {
-            return;
-        }
-        for (const [key, value] of Object.entries(payload.result)) {
-            const fileNameStr = key;
-            const fileCoverageMetrics: FileCoverageMetrics = value;
-            const linesCovered = fileCoverageMetrics.lines_covered ? fileCoverageMetrics.lines_covered : []; // undefined if no lines covered
-            const linesMissed = fileCoverageMetrics.lines_missed ? fileCoverageMetrics.lines_missed : []; // undefined if no lines missed
-            const executedBranches = fileCoverageMetrics.executed_branches;
-            const totalBranches = fileCoverageMetrics.total_branches;
-
-            const lineCoverageCount = new TestCoverageCount(
-                linesCovered.length,
-                linesCovered.length + linesMissed.length,
+            PythonResultResolver.executionHandler.processExecution(
+                payload as ExecutionTestPayload,
+                runInstance,
+                this.testItemIndex,
+                this.testController,
             );
-            let fileCoverage: FileCoverage;
-            const uri = Uri.file(fileNameStr);
-            if (totalBranches === -1) {
-                // branch coverage was not enabled and should not be displayed
-                fileCoverage = new FileCoverage(uri, lineCoverageCount);
-            } else {
-                const branchCoverageCount = new TestCoverageCount(executedBranches, totalBranches);
-                fileCoverage = new FileCoverage(uri, lineCoverageCount, branchCoverageCount);
-            }
-            runInstance.addCoverage(fileCoverage);
-
-            // create detailed coverage array for each file (only line coverage on detailed, not branch)
-            const detailedCoverageArray: FileCoverageDetail[] = [];
-            // go through all covered lines, create new StatementCoverage, and add to detailedCoverageArray
-            for (const line of linesCovered) {
-                // line is 1-indexed, so we need to subtract 1 to get the 0-indexed line number
-                // true value means line is covered
-                const statementCoverage = new StatementCoverage(
-                    true,
-                    new Range(line - 1, 0, line - 1, Number.MAX_SAFE_INTEGER),
-                );
-                detailedCoverageArray.push(statementCoverage);
-            }
-            for (const line of linesMissed) {
-                // line is 1-indexed, so we need to subtract 1 to get the 0-indexed line number
-                // false value means line is NOT covered
-                const statementCoverage = new StatementCoverage(
-                    false,
-                    new Range(line - 1, 0, line - 1, Number.MAX_SAFE_INTEGER),
-                );
-                detailedCoverageArray.push(statementCoverage);
-            }
-
-            this.detailedCoverageMap.set(uri.fsPath, detailedCoverageArray);
         }
     }
 
-    /**
-     * Collect all test case items from the test controller tree.
-     * Note: This performs full tree traversal - use cached lookups when possible.
-     */
-    private collectAllTestCases(): TestItem[] {
-        const testCases: TestItem[] = [];
-
-        this.testController.items.forEach((i) => {
-            const tempArr: TestItem[] = getTestCaseNodes(i);
-            testCases.push(...tempArr);
-        });
-
-        return testCases;
-    }
-
-    /**
-     * Find a test item efficiently using cached maps with fallback strategies.
-     * Uses a three-tier approach: direct lookup, ID mapping, then tree search.
-     */
-    private findTestItemByIdEfficient(keyTemp: string): TestItem | undefined {
-        // Try direct O(1) lookup first
-        const directItem = this.runIdToTestItem.get(keyTemp);
-        if (directItem) {
-            // Validate the item is still in the test tree
-            if (this.isTestItemValid(directItem)) {
-                return directItem;
-            } else {
-                // Clean up stale reference
-                this.runIdToTestItem.delete(keyTemp);
-            }
-        }
-
-        // Try vsId mapping as fallback
-        const vsId = this.runIdToVSid.get(keyTemp);
-        if (vsId) {
-            // Search by VS Code ID in the controller
-            let foundItem: TestItem | undefined;
-            this.testController.items.forEach((item) => {
-                if (item.id === vsId) {
-                    foundItem = item;
-                    return;
-                }
-                if (!foundItem) {
-                    item.children.forEach((child) => {
-                        if (child.id === vsId) {
-                            foundItem = child;
-                        }
-                    });
-                }
-            });
-
-            if (foundItem) {
-                // Cache for future lookups
-                this.runIdToTestItem.set(keyTemp, foundItem);
-                return foundItem;
-            } else {
-                // Clean up stale mapping
-                this.runIdToVSid.delete(keyTemp);
-                this.vsIdToRunId.delete(vsId);
-            }
-        }
-
-        // Last resort: full tree search
-        traceError(`Falling back to tree search for test: ${keyTemp}`);
-        const testCases = this.collectAllTestCases();
-        return testCases.find((item) => item.id === vsId);
+    public _resolveExecution(payload: ExecutionTestPayload, runInstance: TestRun): void {
+        // Delegate to the public method for backward compatibility
+        this.resolveExecution(payload, runInstance);
     }
 
-    /**
-     * Check if a TestItem is still valid (exists in the TestController tree)
-     *
-     * Time Complexity: O(depth) where depth is the maximum nesting level of the test tree.
-     * In most cases this is O(1) to O(3) since test trees are typically shallow.
-     */
-    private isTestItemValid(testItem: TestItem): boolean {
-        // Simple validation: check if the item's parent chain leads back to the controller
-        let current: TestItem | undefined = testItem;
-        while (current?.parent) {
-            current = current.parent;
-        }
-
-        // If we reached a root item, check if it's in the controller
-        if (current) {
-            return this.testController.items.get(current.id) === current;
-        }
-
-        // If no parent chain, check if it's directly in the controller
-        return this.testController.items.get(testItem.id) === testItem;
+    public _resolveCoverage(payload: CoveragePayload, runInstance: TestRun): void {
+        // Delegate to the public method for backward compatibility
+        this.resolveExecution(payload, runInstance);
     }
 
     /**
      * Clean up stale test item references from the cache maps.
      * Validates cached items and removes any that are no longer in the test tree.
+     * Delegates to TestItemIndex.
      */
     public cleanupStaleReferences(): void {
-        const staleRunIds: string[] = [];
-
-        // Check all runId->TestItem mappings
-        this.runIdToTestItem.forEach((testItem, runId) => {
-            if (!this.isTestItemValid(testItem)) {
-                staleRunIds.push(runId);
-            }
-        });
-
-        // Remove stale entries
-        staleRunIds.forEach((runId) => {
-            const vsId = this.runIdToVSid.get(runId);
-            this.runIdToTestItem.delete(runId);
-            this.runIdToVSid.delete(runId);
-            if (vsId) {
-                this.vsIdToRunId.delete(vsId);
-            }
-        });
-
-        if (staleRunIds.length > 0) {
-            traceVerbose(`Cleaned up ${staleRunIds.length} stale test item references`);
-        }
-    }
-
-    /**
-     * Handle test items that errored during execution.
-     * Extracts error details, finds the corresponding TestItem, and reports the error to VS Code's Test Explorer.
-     */
-    private handleTestError(keyTemp: string, testItem: any, runInstance: TestRun): void {
-        const rawTraceback = testItem.traceback ?? '';
-        const traceback = splitLines(rawTraceback, {
-            trim: false,
-            removeEmptyEntries: true,
-        }).join('\r\n');
-        const text = `${testItem.test} failed with error: ${testItem.message ?? testItem.outcome}\r\n${traceback}`;
-        const message = new TestMessage(text);
-
-        const foundItem = this.findTestItemByIdEfficient(keyTemp);
-
-        if (foundItem?.uri) {
-            if (foundItem.range) {
-                message.location = new Location(foundItem.uri, foundItem.range);
-            }
-            runInstance.errored(foundItem, message);
-        }
-    }
-
-    /**
-     * Handle test items that failed during execution
-     */
-    private handleTestFailure(keyTemp: string, testItem: any, runInstance: TestRun): void {
-        const rawTraceback = testItem.traceback ?? '';
-        const traceback = splitLines(rawTraceback, {
-            trim: false,
-            removeEmptyEntries: true,
-        }).join('\r\n');
-
-        const text = `${testItem.test} failed: ${testItem.message ?? testItem.outcome}\r\n${traceback}`;
-        const message = new TestMessage(text);
-
-        const foundItem = this.findTestItemByIdEfficient(keyTemp);
-
-        if (foundItem?.uri) {
-            if (foundItem.range) {
-                message.location = new Location(foundItem.uri, foundItem.range);
-            }
-            runInstance.failed(foundItem, message);
-        }
-    }
-
-    /**
-     * Handle test items that passed during execution
-     */
-    private handleTestSuccess(keyTemp: string, runInstance: TestRun): void {
-        const grabTestItem = this.runIdToTestItem.get(keyTemp);
-
-        if (grabTestItem !== undefined) {
-            const foundItem = this.findTestItemByIdEfficient(keyTemp);
-            if (foundItem?.uri) {
-                runInstance.passed(grabTestItem);
-            }
-        }
-    }
-
-    /**
-     * Handle test items that were skipped during execution
-     */
-    private handleTestSkipped(keyTemp: string, runInstance: TestRun): void {
-        const grabTestItem = this.runIdToTestItem.get(keyTemp);
-
-        if (grabTestItem !== undefined) {
-            const foundItem = this.findTestItemByIdEfficient(keyTemp);
-            if (foundItem?.uri) {
-                runInstance.skipped(grabTestItem);
-            }
-        }
-    }
-
-    /**
-     * Handle subtest failures
-     */
-    private handleSubtestFailure(keyTemp: string, testItem: any, runInstance: TestRun): void {
-        const [parentTestCaseId, subtestId] = splitTestNameWithRegex(keyTemp);
-        const parentTestItem = this.runIdToTestItem.get(parentTestCaseId);
-
-        if (parentTestItem) {
-            const subtestStats = this.subTestStats.get(parentTestCaseId);
-            if (subtestStats) {
-                subtestStats.failed += 1;
-            } else {
-                this.subTestStats.set(parentTestCaseId, {
-                    failed: 1,
-                    passed: 0,
-                });
-                clearAllChildren(parentTestItem);
-            }
-
-            const subTestItem = this.testController?.createTestItem(subtestId, subtestId, parentTestItem.uri);
-
-            if (subTestItem) {
-                const traceback = testItem.traceback ?? '';
-                const text = `${testItem.subtest} failed: ${testItem.message ?? testItem.outcome}\r\n${traceback}`;
-                parentTestItem.children.add(subTestItem);
-                runInstance.started(subTestItem);
-                const message = new TestMessage(text);
-                if (parentTestItem.uri && parentTestItem.range) {
-                    message.location = new Location(parentTestItem.uri, parentTestItem.range);
-                }
-                runInstance.failed(subTestItem, message);
-            } else {
-                throw new Error('Unable to create new child node for subtest');
-            }
-        } else {
-            throw new Error('Parent test item not found');
-        }
-    }
-
-    /**
-     * Handle subtest successes
-     */
-    private handleSubtestSuccess(keyTemp: string, runInstance: TestRun): void {
-        const [parentTestCaseId, subtestId] = splitTestNameWithRegex(keyTemp);
-        const parentTestItem = this.runIdToTestItem.get(parentTestCaseId);
-
-        if (parentTestItem) {
-            const subtestStats = this.subTestStats.get(parentTestCaseId);
-            if (subtestStats) {
-                subtestStats.passed += 1;
-            } else {
-                this.subTestStats.set(parentTestCaseId, { failed: 0, passed: 1 });
-                clearAllChildren(parentTestItem);
-            }
-
-            const subTestItem = this.testController?.createTestItem(subtestId, subtestId, parentTestItem.uri);
-
-            if (subTestItem) {
-                parentTestItem.children.add(subTestItem);
-                runInstance.started(subTestItem);
-                runInstance.passed(subTestItem);
-            } else {
-                throw new Error('Unable to create new child node for subtest');
-            }
-        } else {
-            throw new Error('Parent test item not found');
-        }
-    }
-
-    /**
-     * Process test execution results and update VS Code's Test Explorer with outcomes.
-     * Uses efficient lookup methods to handle large numbers of test results.
-     */
-    public _resolveExecution(payload: ExecutionTestPayload, runInstance: TestRun): void {
-        const rawTestExecData = payload as ExecutionTestPayload;
-        if (rawTestExecData !== undefined && rawTestExecData.result !== undefined) {
-            for (const keyTemp of Object.keys(rawTestExecData.result)) {
-                const testItem = rawTestExecData.result[keyTemp];
-
-                // Delegate to specific outcome handlers using efficient lookups
-                if (testItem.outcome === 'error') {
-                    this.handleTestError(keyTemp, testItem, runInstance);
-                } else if (testItem.outcome === 'failure' || testItem.outcome === 'passed-unexpected') {
-                    this.handleTestFailure(keyTemp, testItem, runInstance);
-                } else if (testItem.outcome === 'success' || testItem.outcome === 'expected-failure') {
-                    this.handleTestSuccess(keyTemp, runInstance);
-                } else if (testItem.outcome === 'skipped') {
-                    this.handleTestSkipped(keyTemp, runInstance);
-                } else if (testItem.outcome === 'subtest-failure') {
-                    this.handleSubtestFailure(keyTemp, testItem, runInstance);
-                } else if (testItem.outcome === 'subtest-success') {
-                    this.handleSubtestSuccess(keyTemp, runInstance);
-                }
-            }
-        }
+        this.testItemIndex.cleanupStaleReferences(this.testController);
     }
 }
diff --git a/src/client/testing/testController/common/testCoverageHandler.ts b/src/client/testing/testController/common/testCoverageHandler.ts
new file mode 100644
index 000000000000..81ec80579730
--- /dev/null
+++ b/src/client/testing/testController/common/testCoverageHandler.ts
@@ -0,0 +1,93 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+import { TestRun, Uri, TestCoverageCount, FileCoverage, FileCoverageDetail, StatementCoverage, Range } from 'vscode';
+import { CoveragePayload, FileCoverageMetrics } from './types';
+
+/**
+ * Stateless handler for processing coverage payloads and creating coverage objects.
+ * This handler is shared across all workspaces and contains no instance state.
+ */
+export class TestCoverageHandler {
+    /**
+     * Process coverage payload
+     * Pure function - returns coverage data without storing it
+     */
+    public processCoverage(payload: CoveragePayload, runInstance: TestRun): Map<string, FileCoverageDetail[]> {
+        const detailedCoverageMap = new Map<string, FileCoverageDetail[]>();
+
+        if (payload.result === undefined) {
+            return detailedCoverageMap;
+        }
+
+        for (const [key, value] of Object.entries(payload.result)) {
+            const fileNameStr = key;
+            const fileCoverageMetrics: FileCoverageMetrics = value;
+
+            // Create FileCoverage object and add to run instance
+            const fileCoverage = this.createFileCoverage(Uri.file(fileNameStr), fileCoverageMetrics);
+            runInstance.addCoverage(fileCoverage);
+
+            // Create detailed coverage array for this file
+            const detailedCoverage = this.createDetailedCoverage(
+                fileCoverageMetrics.lines_covered ?? [],
+                fileCoverageMetrics.lines_missed ?? [],
+            );
+            detailedCoverageMap.set(Uri.file(fileNameStr).fsPath, detailedCoverage);
+        }
+
+        return detailedCoverageMap;
+    }
+
+    /**
+     * Create FileCoverage object from metrics
+     */
+    private createFileCoverage(uri: Uri, metrics: FileCoverageMetrics): FileCoverage {
+        const linesCovered = metrics.lines_covered ?? [];
+        const linesMissed = metrics.lines_missed ?? [];
+        const executedBranches = metrics.executed_branches;
+        const totalBranches = metrics.total_branches;
+
+        const lineCoverageCount = new TestCoverageCount(linesCovered.length, linesCovered.length + linesMissed.length);
+
+        if (totalBranches === -1) {
+            // branch coverage was not enabled and should not be displayed
+            return new FileCoverage(uri, lineCoverageCount);
+        } else {
+            const branchCoverageCount = new TestCoverageCount(executedBranches, totalBranches);
+            return new FileCoverage(uri, lineCoverageCount, branchCoverageCount);
+        }
+    }
+
+    /**
+     * Create detailed coverage array for a file
+     * Only line coverage on detailed, not branch coverage
+     */
+    private createDetailedCoverage(linesCovered: number[], linesMissed: number[]): FileCoverageDetail[] {
+        const detailedCoverageArray: FileCoverageDetail[] = [];
+
+        // Add covered lines
+        for (const line of linesCovered) {
+            // line is 1-indexed, so we need to subtract 1 to get the 0-indexed line number
+            // true value means line is covered
+            const statementCoverage = new StatementCoverage(
+                true,
+                new Range(line - 1, 0, line - 1, Number.MAX_SAFE_INTEGER),
+            );
+            detailedCoverageArray.push(statementCoverage);
+        }
+
+        // Add missed lines
+        for (const line of linesMissed) {
+            // line is 1-indexed, so we need to subtract 1 to get the 0-indexed line number
+            // false value means line is NOT covered
+            const statementCoverage = new StatementCoverage(
+                false,
+                new Range(line - 1, 0, line - 1, Number.MAX_SAFE_INTEGER),
+            );
+            detailedCoverageArray.push(statementCoverage);
+        }
+
+        return detailedCoverageArray;
+    }
+}
diff --git a/src/client/testing/testController/common/testDiscoveryHandler.ts b/src/client/testing/testController/common/testDiscoveryHandler.ts
new file mode 100644
index 000000000000..50f4fa71406a
--- /dev/null
+++ b/src/client/testing/testController/common/testDiscoveryHandler.ts
@@ -0,0 +1,104 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+import { CancellationToken, TestController, Uri, MarkdownString } from 'vscode';
+import * as util from 'util';
+import { DiscoveredTestPayload } from './types';
+import { TestProvider } from '../../types';
+import { traceError } from '../../../logging';
+import { Testing } from '../../../common/utils/localize';
+import { createErrorTestItem } from './testItemUtilities';
+import { buildErrorNodeOptions, populateTestTree } from './utils';
+import { TestItemIndex } from './testItemIndex';
+
+/**
+ * Stateless handler for processing discovery payloads and building/updating the TestItem tree.
+ * This handler is shared across all workspaces and contains no instance state.
+ */
+export class TestDiscoveryHandler {
+    /**
+     * Process discovery payload and update test tree
+     * Pure function - no instance state used
+     */
+    public processDiscovery(
+        payload: DiscoveredTestPayload,
+        testController: TestController,
+        testItemIndex: TestItemIndex,
+        workspaceUri: Uri,
+        testProvider: TestProvider,
+        token?: CancellationToken,
+    ): void {
+        if (!payload) {
+            // No test data is available
+            return;
+        }
+
+        const workspacePath = workspaceUri.fsPath;
+        const rawTestData = payload as DiscoveredTestPayload;
+
+        // Check if there were any errors in the discovery process.
+        if (rawTestData.status === 'error') {
+            this.createErrorNode(testController, workspaceUri, rawTestData.error, testProvider);
+        } else {
+            // remove error node only if no errors exist.
+            testController.items.delete(`DiscoveryError:${workspacePath}`);
+        }
+
+        if (rawTestData.tests || rawTestData.tests === null) {
+            // if any tests exist, they should be populated in the test tree, regardless of whether there were errors or not.
+            // parse and insert test data.
+
+            // Clear existing mappings before rebuilding test tree
+            testItemIndex.clear();
+
+            // If the test root for this folder exists: Workspace refresh, update its children.
+            // Otherwise, it is a freshly discovered workspace, and we need to create a new test root and populate the test tree.
+            // Note: populateTestTree will call testItemIndex.registerTestItem() for each discovered test
+            populateTestTree(
+                testController,
+                rawTestData.tests,
+                undefined,
+                {
+                    runIdToTestItem: testItemIndex.runIdToTestItemMap,
+                    runIdToVSid: testItemIndex.runIdToVSidMap,
+                    vsIdToRunId: testItemIndex.vsIdToRunIdMap,
+                } as any,
+                token,
+            );
+        }
+    }
+
+    /**
+     * Create an error node for discovery failures
+     */
+    public createErrorNode(
+        testController: TestController,
+        workspaceUri: Uri,
+        error: string[] | undefined,
+        testProvider: TestProvider,
+    ): void {
+        const workspacePath = workspaceUri.fsPath;
+        const testingErrorConst =
+            testProvider === 'pytest' ? Testing.errorPytestDiscovery : Testing.errorUnittestDiscovery;
+
+        traceError(testingErrorConst, 'for workspace: ', workspacePath, '\r\n', error?.join('\r\n\r\n') ?? '');
+
+        let errorNode = testController.items.get(`DiscoveryError:${workspacePath}`);
+        const message = util.format(
+            `${testingErrorConst} ${Testing.seePythonOutput}\r\n`,
+            error?.join('\r\n\r\n') ?? '',
+        );
+
+        if (errorNode === undefined) {
+            const options = buildErrorNodeOptions(workspaceUri, message, testProvider);
+            errorNode = createErrorTestItem(testController, options);
+            testController.items.add(errorNode);
+        }
+
+        const errorNodeLabel: MarkdownString = new MarkdownString(
+            `[Show output](command:python.viewOutput) to view error logs`,
+        );
+        errorNodeLabel.isTrusted = true;
+        errorNode.error = errorNodeLabel;
+    }
+}
diff --git a/src/client/testing/testController/common/testExecutionHandler.ts b/src/client/testing/testController/common/testExecutionHandler.ts
new file mode 100644
index 000000000000..127e6980ae46
--- /dev/null
+++ b/src/client/testing/testController/common/testExecutionHandler.ts
@@ -0,0 +1,231 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+import { TestController, TestRun, TestMessage, Location } from 'vscode';
+import { ExecutionTestPayload } from './types';
+import { TestItemIndex } from './testItemIndex';
+import { splitLines } from '../../../common/stringUtils';
+import { splitTestNameWithRegex } from './utils';
+import { clearAllChildren } from './testItemUtilities';
+
+/**
+ * Stateless handler for processing execution payloads and updating TestRun instances.
+ * This handler is shared across all workspaces and contains no instance state.
+ */
+export class TestExecutionHandler {
+    /**
+     * Process execution payload and update test run
+     * Pure function - no instance state used
+     */
+    public processExecution(
+        payload: ExecutionTestPayload,
+        runInstance: TestRun,
+        testItemIndex: TestItemIndex,
+        testController: TestController,
+    ): void {
+        const rawTestExecData = payload as ExecutionTestPayload;
+
+        if (rawTestExecData !== undefined && rawTestExecData.result !== undefined) {
+            for (const keyTemp of Object.keys(rawTestExecData.result)) {
+                const testItem = rawTestExecData.result[keyTemp];
+
+                // Delegate to specific outcome handlers
+                this.handleTestOutcome(keyTemp, testItem, runInstance, testItemIndex, testController);
+            }
+        }
+    }
+
+    /**
+     * Handle a single test result based on outcome
+     */
+    private handleTestOutcome(
+        runId: string,
+        testItem: any,
+        runInstance: TestRun,
+        testItemIndex: TestItemIndex,
+        testController: TestController,
+    ): void {
+        if (testItem.outcome === 'error') {
+            this.handleTestError(runId, testItem, runInstance, testItemIndex, testController);
+        } else if (testItem.outcome === 'failure' || testItem.outcome === 'passed-unexpected') {
+            this.handleTestFailure(runId, testItem, runInstance, testItemIndex, testController);
+        } else if (testItem.outcome === 'success' || testItem.outcome === 'expected-failure') {
+            this.handleTestSuccess(runId, runInstance, testItemIndex, testController);
+        } else if (testItem.outcome === 'skipped') {
+            this.handleTestSkipped(runId, runInstance, testItemIndex, testController);
+        } else if (testItem.outcome === 'subtest-failure') {
+            this.handleSubtestFailure(runId, testItem, runInstance, testItemIndex, testController);
+        } else if (testItem.outcome === 'subtest-success') {
+            this.handleSubtestSuccess(runId, runInstance, testItemIndex, testController);
+        }
+    }
+
+    /**
+     * Handle test items that errored during execution
+     */
+    private handleTestError(
+        runId: string,
+        testItem: any,
+        runInstance: TestRun,
+        testItemIndex: TestItemIndex,
+        testController: TestController,
+    ): void {
+        const rawTraceback = testItem.traceback ?? '';
+        const traceback = splitLines(rawTraceback, {
+            trim: false,
+            removeEmptyEntries: true,
+        }).join('\r\n');
+        const text = `${testItem.test} failed with error: ${testItem.message ?? testItem.outcome}\r\n${traceback}`;
+        const message = new TestMessage(text);
+
+        const foundItem = testItemIndex.getTestItem(runId, testController);
+
+        if (foundItem?.uri) {
+            if (foundItem.range) {
+                message.location = new Location(foundItem.uri, foundItem.range);
+            }
+            runInstance.errored(foundItem, message);
+        }
+    }
+
+    /**
+     * Handle test items that failed during execution
+     */
+    private handleTestFailure(
+        runId: string,
+        testItem: any,
+        runInstance: TestRun,
+        testItemIndex: TestItemIndex,
+        testController: TestController,
+    ): void {
+        const rawTraceback = testItem.traceback ?? '';
+        const traceback = splitLines(rawTraceback, {
+            trim: false,
+            removeEmptyEntries: true,
+        }).join('\r\n');
+
+        const text = `${testItem.test} failed: ${testItem.message ?? testItem.outcome}\r\n${traceback}`;
+        const message = new TestMessage(text);
+
+        const foundItem = testItemIndex.getTestItem(runId, testController);
+
+        if (foundItem?.uri) {
+            if (foundItem.range) {
+                message.location = new Location(foundItem.uri, foundItem.range);
+            }
+            runInstance.failed(foundItem, message);
+        }
+    }
+
+    /**
+     * Handle test items that passed during execution
+     */
+    private handleTestSuccess(
+        runId: string,
+        runInstance: TestRun,
+        testItemIndex: TestItemIndex,
+        testController: TestController,
+    ): void {
+        const foundItem = testItemIndex.getTestItem(runId, testController);
+
+        if (foundItem !== undefined && foundItem.uri) {
+            runInstance.passed(foundItem);
+        }
+    }
+
+    /**
+     * Handle test items that were skipped during execution
+     */
+    private handleTestSkipped(
+        runId: string,
+        runInstance: TestRun,
+        testItemIndex: TestItemIndex,
+        testController: TestController,
+    ): void {
+        const foundItem = testItemIndex.getTestItem(runId, testController);
+
+        if (foundItem !== undefined && foundItem.uri) {
+            runInstance.skipped(foundItem);
+        }
+    }
+
+    /**
+     * Handle subtest failures
+     */
+    private handleSubtestFailure(
+        runId: string,
+        testItem: any,
+        runInstance: TestRun,
+        testItemIndex: TestItemIndex,
+        testController: TestController,
+    ): void {
+        const [parentTestCaseId, subtestId] = splitTestNameWithRegex(runId);
+        const parentTestItem = testItemIndex.getTestItem(parentTestCaseId, testController);
+
+        if (parentTestItem) {
+            const stats = testItemIndex.getSubtestStats(parentTestCaseId);
+            if (stats) {
+                stats.failed += 1;
+            } else {
+                testItemIndex.setSubtestStats(parentTestCaseId, {
+                    failed: 1,
+                    passed: 0,
+                });
+                clearAllChildren(parentTestItem);
+            }
+
+            const subTestItem = testController?.createTestItem(subtestId, subtestId, parentTestItem.uri);
+
+            if (subTestItem) {
+                const traceback = testItem.traceback ?? '';
+                const text = `${testItem.subtest} failed: ${testItem.message ?? testItem.outcome}\r\n${traceback}`;
+                parentTestItem.children.add(subTestItem);
+                runInstance.started(subTestItem);
+                const message = new TestMessage(text);
+                if (parentTestItem.uri && parentTestItem.range) {
+                    message.location = new Location(parentTestItem.uri, parentTestItem.range);
+                }
+                runInstance.failed(subTestItem, message);
+            } else {
+                throw new Error('Unable to create new child node for subtest');
+            }
+        } else {
+            throw new Error('Parent test item not found');
+        }
+    }
+
+    /**
+     * Handle subtest successes
+     */
+    private handleSubtestSuccess(
+        runId: string,
+        runInstance: TestRun,
+        testItemIndex: TestItemIndex,
+        testController: TestController,
+    ): void {
+        const [parentTestCaseId, subtestId] = splitTestNameWithRegex(runId);
+        const parentTestItem = testItemIndex.getTestItem(parentTestCaseId, testController);
+
+        if (parentTestItem) {
+            const stats = testItemIndex.getSubtestStats(parentTestCaseId);
+            if (stats) {
+                stats.passed += 1;
+            } else {
+                testItemIndex.setSubtestStats(parentTestCaseId, { failed: 0, passed: 1 });
+                clearAllChildren(parentTestItem);
+            }
+
+            const subTestItem = testController?.createTestItem(subtestId, subtestId, parentTestItem.uri);
+
+            if (subTestItem) {
+                parentTestItem.children.add(subTestItem);
+                runInstance.started(subTestItem);
+                runInstance.passed(subTestItem);
+            } else {
+                throw new Error('Unable to create new child node for subtest');
+            }
+        } else {
+            throw new Error('Parent test item not found');
+        }
+    }
+}
diff --git a/src/client/testing/testController/common/testItemIndex.ts b/src/client/testing/testController/common/testItemIndex.ts
new file mode 100644
index 000000000000..448903eae7d5
--- /dev/null
+++ b/src/client/testing/testController/common/testItemIndex.ts
@@ -0,0 +1,225 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+import { TestController, TestItem } from 'vscode';
+import { traceError, traceVerbose } from '../../../logging';
+import { getTestCaseNodes } from './testItemUtilities';
+
+export interface SubtestStats {
+    passed: number;
+    failed: number;
+}
+
+/**
+ * Maintains persistent ID mappings between Python test IDs and VS Code TestItems.
+ * This is a stateful component that bridges discovery and execution phases.
+ *
+ * Lifecycle:
+ * - Created: When PythonResultResolver is instantiated (during workspace activation)
+ * - Populated: During discovery - each discovered test registers its mappings
+ * - Queried: During execution - to look up TestItems by Python run ID
+ * - Cleared: When discovery runs again (fresh start) or workspace is disposed
+ * - Cleaned: Periodically to remove stale references to deleted tests
+ */
+export class TestItemIndex {
+    // THE STATE - these maps persist across discovery and execution
+    private runIdToTestItem: Map<string, TestItem>;
+    private runIdToVSid: Map<string, string>;
+    private vsIdToRunId: Map<string, string>;
+    private subtestStatsMap: Map<string, SubtestStats>;
+
+    constructor() {
+        this.runIdToTestItem = new Map<string, TestItem>();
+        this.runIdToVSid = new Map<string, string>();
+        this.vsIdToRunId = new Map<string, string>();
+        this.subtestStatsMap = new Map<string, SubtestStats>();
+    }
+
+    /**
+     * Register a test item with its Python run ID and VS Code ID
+     * Called during DISCOVERY to populate the index
+     */
+    public registerTestItem(runId: string, vsId: string, testItem: TestItem): void {
+        this.runIdToTestItem.set(runId, testItem);
+        this.runIdToVSid.set(runId, vsId);
+        this.vsIdToRunId.set(vsId, runId);
+    }
+
+    /**
+     * Get TestItem by Python run ID (with validation and fallback strategies)
+     * Called during EXECUTION to look up tests
+     *
+     * Uses a three-tier approach:
+     * 1. Direct O(1) lookup in runIdToTestItem map
+     * 2. If stale, try vsId mapping and search by VS Code ID
+     * 3. Last resort: full tree search
+     */
+    public getTestItem(runId: string, testController: TestController): TestItem | undefined {
+        // Try direct O(1) lookup first
+        const directItem = this.runIdToTestItem.get(runId);
+        if (directItem) {
+            // Validate the item is still in the test tree
+            if (this.isTestItemValid(directItem, testController)) {
+                return directItem;
+            } else {
+                // Clean up stale reference
+                this.runIdToTestItem.delete(runId);
+            }
+        }
+
+        // Try vsId mapping as fallback
+        const vsId = this.runIdToVSid.get(runId);
+        if (vsId) {
+            // Search by VS Code ID in the controller
+            let foundItem: TestItem | undefined;
+            testController.items.forEach((item) => {
+                if (item.id === vsId) {
+                    foundItem = item;
+                    return;
+                }
+                if (!foundItem) {
+                    item.children.forEach((child) => {
+                        if (child.id === vsId) {
+                            foundItem = child;
+                        }
+                    });
+                }
+            });
+
+            if (foundItem) {
+                // Cache for future lookups
+                this.runIdToTestItem.set(runId, foundItem);
+                return foundItem;
+            } else {
+                // Clean up stale mapping
+                this.runIdToVSid.delete(runId);
+                this.vsIdToRunId.delete(vsId);
+            }
+        }
+
+        // Last resort: full tree search
+        traceError(`Falling back to tree search for test: ${runId}`);
+        const testCases = this.collectAllTestCases(testController);
+        return testCases.find((item) => item.id === vsId);
+    }
+
+    /**
+     * Get Python run ID from VS Code ID
+     * Called by WorkspaceTestAdapter.executeTests() to convert selected tests to Python IDs
+     */
+    public getRunId(vsId: string): string | undefined {
+        return this.vsIdToRunId.get(vsId);
+    }
+
+    /**
+     * Get VS Code ID from Python run ID
+     */
+    public getVSId(runId: string): string | undefined {
+        return this.runIdToVSid.get(runId);
+    }
+
+    /**
+     * Check if a TestItem reference is still valid in the tree
+     *
+     * Time Complexity: O(depth) where depth is the maximum nesting level of the test tree.
+     * In most cases this is O(1) to O(3) since test trees are typically shallow.
+     */
+    public isTestItemValid(testItem: TestItem, testController: TestController): boolean {
+        // Simple validation: check if the item's parent chain leads back to the controller
+        let current: TestItem | undefined = testItem;
+        while (current?.parent) {
+            current = current.parent;
+        }
+
+        // If we reached a root item, check if it's in the controller
+        if (current) {
+            return testController.items.get(current.id) === current;
+        }
+
+        // If no parent chain, check if it's directly in the controller
+        return testController.items.get(testItem.id) === testItem;
+    }
+
+    /**
+     * Get subtest statistics for a parent test case
+     * Returns undefined if no stats exist yet for this parent
+     */
+    public getSubtestStats(parentId: string): SubtestStats | undefined {
+        return this.subtestStatsMap.get(parentId);
+    }
+
+    /**
+     * Set subtest statistics for a parent test case
+     */
+    public setSubtestStats(parentId: string, stats: SubtestStats): void {
+        this.subtestStatsMap.set(parentId, stats);
+    }
+
+    /**
+     * Remove all mappings
+     * Called at the start of discovery to ensure clean state
+     */
+    public clear(): void {
+        this.runIdToTestItem.clear();
+        this.runIdToVSid.clear();
+        this.vsIdToRunId.clear();
+        this.subtestStatsMap.clear();
+    }
+
+    /**
+     * Clean up stale references that no longer exist in the test tree
+     * Called after test tree modifications
+     */
+    public cleanupStaleReferences(testController: TestController): void {
+        const staleRunIds: string[] = [];
+
+        // Check all runId->TestItem mappings
+        this.runIdToTestItem.forEach((testItem, runId) => {
+            if (!this.isTestItemValid(testItem, testController)) {
+                staleRunIds.push(runId);
+            }
+        });
+
+        // Remove stale entries
+        staleRunIds.forEach((runId) => {
+            const vsId = this.runIdToVSid.get(runId);
+            this.runIdToTestItem.delete(runId);
+            this.runIdToVSid.delete(runId);
+            if (vsId) {
+                this.vsIdToRunId.delete(vsId);
+            }
+        });
+
+        if (staleRunIds.length > 0) {
+            traceVerbose(`Cleaned up ${staleRunIds.length} stale test item references`);
+        }
+    }
+
+    /**
+     * Collect all test case items from the test controller tree.
+     * Note: This performs full tree traversal - use cached lookups when possible.
+     */
+    private collectAllTestCases(testController: TestController): TestItem[] {
+        const testCases: TestItem[] = [];
+
+        testController.items.forEach((i) => {
+            const tempArr: TestItem[] = getTestCaseNodes(i);
+            testCases.push(...tempArr);
+        });
+
+        return testCases;
+    }
+
+    // Expose maps for backward compatibility (read-only access)
+    public get runIdToTestItemMap(): Map<string, TestItem> {
+        return this.runIdToTestItem;
+    }
+
+    public get runIdToVSidMap(): Map<string, string> {
+        return this.runIdToVSid;
+    }
+
+    public get vsIdToRunIdMap(): Map<string, string> {
+        return this.vsIdToRunId;
+    }
+}
diff --git a/src/test/testing/common/testingAdapter.test.ts b/src/test/testing/common/testingAdapter.test.ts
index 97c04d5dfdf1..478e9dd85744 100644
--- a/src/test/testing/common/testingAdapter.test.ts
+++ b/src/test/testing/common/testingAdapter.test.ts
@@ -161,11 +161,10 @@ suite('End to End Tests: test adapters', () => {
         resultResolver = new PythonResultResolver(testController, unittestProvider, workspaceUri);
         let callCount = 0;
         // const deferredTillEOT = createTestingDeferred();
-        resultResolver._resolveDiscovery = async (payload, _token?) => {
+        resultResolver.resolveDiscovery = (payload, _token?) => {
             traceLog(`resolveDiscovery ${payload}`);
             callCount = callCount + 1;
             actualData = payload;
-            return Promise.resolve();
         };
 
         // set workspace to test workspace folder and set up settings
@@ -202,11 +201,10 @@ suite('End to End Tests: test adapters', () => {
         };
         resultResolver = new PythonResultResolver(testController, unittestProvider, workspaceUri);
         let callCount = 0;
-        resultResolver._resolveDiscovery = async (payload, _token?) => {
+        resultResolver.resolveDiscovery = (payload, _token?) => {
             traceLog(`resolveDiscovery ${payload}`);
             callCount = callCount + 1;
             actualData = payload;
-            return Promise.resolve();
         };
 
         // set settings to work for the given workspace
@@ -242,10 +240,9 @@ suite('End to End Tests: test adapters', () => {
         workspaceUri = Uri.parse(rootPathSmallWorkspace);
         resultResolver = new PythonResultResolver(testController, pytestProvider, workspaceUri);
         let callCount = 0;
-        resultResolver._resolveDiscovery = async (payload, _token?) => {
+        resultResolver.resolveDiscovery = (payload, _token?) => {
             callCount = callCount + 1;
             actualData = payload;
-            return Promise.resolve();
         };
         // run pytest discovery
         const discoveryAdapter = new PytestTestDiscoveryAdapter(configService, resultResolver, envVarsService);
@@ -291,11 +288,10 @@ suite('End to End Tests: test adapters', () => {
 
         resultResolver = new PythonResultResolver(testController, pytestProvider, workspaceUri);
         let callCount = 0;
-        resultResolver._resolveDiscovery = async (payload, _token?) => {
+        resultResolver.resolveDiscovery = (payload, _token?) => {
             traceLog(`resolveDiscovery ${payload}`);
             callCount = callCount + 1;
             actualData = payload;
-            return Promise.resolve();
         };
         // run pytest discovery
         const discoveryAdapter = new PytestTestDiscoveryAdapter(configService, resultResolver, envVarsService);
@@ -375,11 +371,10 @@ suite('End to End Tests: test adapters', () => {
 
         resultResolver = new PythonResultResolver(testController, pytestProvider, workspaceUri);
         let callCount = 0;
-        resultResolver._resolveDiscovery = async (payload, _token?) => {
+        resultResolver.resolveDiscovery = (payload, _token?) => {
             traceLog(`resolveDiscovery ${payload}`);
             callCount = callCount + 1;
             actualData = payload;
-            return Promise.resolve();
         };
         // run pytest discovery
         const discoveryAdapter = new PytestTestDiscoveryAdapter(configService, resultResolver, envVarsService);
@@ -446,11 +441,10 @@ suite('End to End Tests: test adapters', () => {
         };
         resultResolver = new PythonResultResolver(testController, pytestProvider, workspaceUri);
         let callCount = 0;
-        resultResolver._resolveDiscovery = async (payload, _token?) => {
+        resultResolver.resolveDiscovery = (payload, _token?) => {
             traceLog(`resolveDiscovery ${payload}`);
             callCount = callCount + 1;
             actualData = payload;
-            return Promise.resolve();
         };
         // run pytest discovery
         const discoveryAdapter = new PytestTestDiscoveryAdapter(configService, resultResolver, envVarsService);
@@ -480,22 +474,23 @@ suite('End to End Tests: test adapters', () => {
         let callCount = 0;
         let failureOccurred = false;
         let failureMsg = '';
-        resultResolver._resolveExecution = async (payload, _token?) => {
+        resultResolver.resolveExecution = (payload, _token?) => {
             traceLog(`resolveDiscovery ${payload}`);
             callCount = callCount + 1;
             // the payloads that get to the _resolveExecution are all data and should be successful.
             try {
-                assert.strictEqual(
-                    payload.status,
-                    'success',
-                    `Expected status to be 'success', instead status is ${payload.status}`,
-                );
-                assert.ok(payload.result, 'Expected results to be present');
+                if ('status' in payload) {
+                    assert.strictEqual(
+                        payload.status,
+                        'success',
+                        `Expected status to be 'success', instead status is ${payload.status}`,
+                    );
+                    assert.ok(payload.result, 'Expected results to be present');
+                }
             } catch (err) {
                 failureMsg = err ? (err as Error).toString() : '';
                 failureOccurred = true;
             }
-            return Promise.resolve();
         };
 
         // set workspace to test workspace folder
@@ -554,22 +549,25 @@ suite('End to End Tests: test adapters', () => {
         let callCount = 0;
         let failureOccurred = false;
         let failureMsg = '';
-        resultResolver._resolveExecution = async (payload, _token?) => {
+        resultResolver.resolveExecution = (payload, _token?) => {
             traceLog(`resolveDiscovery ${payload}`);
             callCount = callCount + 1;
             // the payloads that get to the _resolveExecution are all data and should be successful.
             try {
-                const validStatuses = ['subtest-success', 'subtest-failure'];
-                assert.ok(
-                    validStatuses.includes(payload.status),
-                    `Expected status to be one of ${validStatuses.join(', ')}, but instead status is ${payload.status}`,
-                );
-                assert.ok(payload.result, 'Expected results to be present');
+                if ('status' in payload) {
+                    const validStatuses = ['subtest-success', 'subtest-failure'];
+                    assert.ok(
+                        validStatuses.includes(payload.status),
+                        `Expected status to be one of ${validStatuses.join(', ')}, but instead status is ${
+                            payload.status
+                        }`,
+                    );
+                    assert.ok(payload.result, 'Expected results to be present');
+                }
             } catch (err) {
                 failureMsg = err ? (err as Error).toString() : '';
                 failureOccurred = true;
             }
-            return Promise.resolve();
         };
 
         // set workspace to test workspace folder
@@ -625,22 +623,23 @@ suite('End to End Tests: test adapters', () => {
         let callCount = 0;
         let failureOccurred = false;
         let failureMsg = '';
-        resultResolver._resolveExecution = async (payload, _token?) => {
+        resultResolver.resolveExecution = (payload, _token?) => {
             traceLog(`resolveDiscovery ${payload}`);
             callCount = callCount + 1;
             // the payloads that get to the _resolveExecution are all data and should be successful.
             try {
-                assert.strictEqual(
-                    payload.status,
-                    'success',
-                    `Expected status to be 'success', instead status is ${payload.status}`,
-                );
-                assert.ok(payload.result, 'Expected results to be present');
+                if ('status' in payload) {
+                    assert.strictEqual(
+                        payload.status,
+                        'success',
+                        `Expected status to be 'success', instead status is ${payload.status}`,
+                    );
+                    assert.ok(payload.result, 'Expected results to be present');
+                }
             } catch (err) {
                 failureMsg = err ? (err as Error).toString() : '';
                 failureOccurred = true;
             }
-            return Promise.resolve();
         };
         // set workspace to test workspace folder
         workspaceUri = Uri.parse(rootPathSmallWorkspace);
@@ -707,7 +706,7 @@ suite('End to End Tests: test adapters', () => {
     test('Unittest execution with coverage, small workspace', async () => {
         // result resolver and saved data for assertions
         resultResolver = new PythonResultResolver(testController, unittestProvider, workspaceUri);
-        resultResolver._resolveCoverage = async (payload, _token?) => {
+        resultResolver._resolveCoverage = (payload, _token?) => {
             assert.strictEqual(payload.cwd, rootPathCoverageWorkspace, 'Expected cwd to be the workspace folder');
             assert.ok(payload.result, 'Expected results to be present');
             const simpleFileCov = payload.result[`${rootPathCoverageWorkspace}/even.py`];
@@ -717,7 +716,6 @@ suite('End to End Tests: test adapters', () => {
             assert.strictEqual(simpleFileCov.lines_missed.length, 1, 'Expected 3 lines to be missed in even.py');
             assert.strictEqual(simpleFileCov.executed_branches, 1, 'Expected 1 branch to be executed in even.py');
             assert.strictEqual(simpleFileCov.total_branches, 2, 'Expected 2 branches in even.py');
-            return Promise.resolve();
         };
 
         // set workspace to test workspace folder
@@ -757,7 +755,7 @@ suite('End to End Tests: test adapters', () => {
     test('pytest coverage execution, small workspace', async () => {
         // result resolver and saved data for assertions
         resultResolver = new PythonResultResolver(testController, pytestProvider, workspaceUri);
-        resultResolver._resolveCoverage = async (payload, _runInstance?) => {
+        resultResolver._resolveCoverage = (payload, _runInstance?) => {
             assert.strictEqual(payload.cwd, rootPathCoverageWorkspace, 'Expected cwd to be the workspace folder');
             assert.ok(payload.result, 'Expected results to be present');
             const simpleFileCov = payload.result[`${rootPathCoverageWorkspace}/even.py`];
@@ -767,8 +765,6 @@ suite('End to End Tests: test adapters', () => {
             assert.strictEqual(simpleFileCov.lines_missed.length, 1, 'Expected 3 lines to be missed in even.py');
             assert.strictEqual(simpleFileCov.executed_branches, 1, 'Expected 1 branch to be executed in even.py');
             assert.strictEqual(simpleFileCov.total_branches, 2, 'Expected 2 branches in even.py');
-
-            return Promise.resolve();
         };
         // set workspace to test workspace folder
         workspaceUri = Uri.parse(rootPathCoverageWorkspace);
@@ -811,22 +807,23 @@ suite('End to End Tests: test adapters', () => {
         let callCount = 0;
         let failureOccurred = false;
         let failureMsg = '';
-        resultResolver._resolveExecution = async (payload, _token?) => {
+        resultResolver.resolveExecution = (payload, _token?) => {
             traceLog(`resolveDiscovery ${payload}`);
             callCount = callCount + 1;
             // the payloads that get to the _resolveExecution are all data and should be successful.
             try {
-                assert.strictEqual(
-                    payload.status,
-                    'success',
-                    `Expected status to be 'success', instead status is ${payload.status}`,
-                );
-                assert.ok(payload.result, 'Expected results to be present');
+                if ('status' in payload) {
+                    assert.strictEqual(
+                        payload.status,
+                        'success',
+                        `Expected status to be 'success', instead status is ${payload.status}`,
+                    );
+                    assert.ok(payload.result, 'Expected results to be present');
+                }
             } catch (err) {
                 failureMsg = err ? (err as Error).toString() : '';
                 failureOccurred = true;
             }
-            return Promise.resolve();
         };
 
         // set workspace to test workspace folder
@@ -878,7 +875,7 @@ suite('End to End Tests: test adapters', () => {
         let callCount = 0;
         let failureOccurred = false;
         let failureMsg = '';
-        resultResolver._resolveDiscovery = async (data, _token?) => {
+        resultResolver.resolveDiscovery = (data, _token?) => {
             // do the following asserts for each time resolveExecution is called, should be called once per test.
             callCount = callCount + 1;
             traceLog(`unittest discovery adapter seg fault error handling \n  ${JSON.stringify(data)}`);
@@ -903,7 +900,6 @@ suite('End to End Tests: test adapters', () => {
                 failureMsg = err ? (err as Error).toString() : '';
                 failureOccurred = true;
             }
-            return Promise.resolve();
         };
 
         // set workspace to test workspace folder
@@ -931,7 +927,7 @@ suite('End to End Tests: test adapters', () => {
         let callCount = 0;
         let failureOccurred = false;
         let failureMsg = '';
-        resultResolver._resolveDiscovery = async (data, _token?) => {
+        resultResolver.resolveDiscovery = (data, _token?) => {
             // do the following asserts for each time resolveExecution is called, should be called once per test.
             callCount = callCount + 1;
             traceLog(`add one to call count, is now ${callCount}`);
@@ -961,7 +957,6 @@ suite('End to End Tests: test adapters', () => {
                 failureMsg = err ? (err as Error).toString() : '';
                 failureOccurred = true;
             }
-            return Promise.resolve();
         };
         // run pytest discovery
         const discoveryAdapter = new PytestTestDiscoveryAdapter(configService, resultResolver, envVarsService);
@@ -984,22 +979,24 @@ suite('End to End Tests: test adapters', () => {
         let callCount = 0;
         let failureOccurred = false;
         let failureMsg = '';
-        resultResolver._resolveExecution = async (data, _token?) => {
+        resultResolver.resolveExecution = (data, _token?) => {
             // do the following asserts for each time resolveExecution is called, should be called once per test.
             console.log(`pytest execution adapter seg fault error handling \n  ${JSON.stringify(data)}`);
             callCount = callCount + 1;
             try {
-                if (data.status === 'error') {
-                    assert.ok(data.error, "Expected errors in 'error' field");
-                } else {
-                    const indexOfTest = JSON.stringify(data.result).search('error');
-                    assert.notDeepEqual(
-                        indexOfTest,
-                        -1,
-                        'If payload status is not error then the individual tests should be marked as errors. This should occur on windows machines.',
-                    );
+                if ('status' in data) {
+                    if (data.status === 'error') {
+                        assert.ok(data.error, "Expected errors in 'error' field");
+                    } else {
+                        const indexOfTest = JSON.stringify(data.result).search('error');
+                        assert.notDeepEqual(
+                            indexOfTest,
+                            -1,
+                            'If payload status is not error then the individual tests should be marked as errors. This should occur on windows machines.',
+                        );
+                    }
+                    assert.ok(data.result, 'Expected results to be present');
                 }
-                assert.ok(data.result, 'Expected results to be present');
                 // make sure the testID is found in the results
                 const indexOfTest = JSON.stringify(data).search(
                     'test_seg_fault.py::TestSegmentationFault::test_segfault',
@@ -1009,7 +1006,6 @@ suite('End to End Tests: test adapters', () => {
                 failureMsg = err ? (err as Error).toString() : '';
                 failureOccurred = true;
             }
-            return Promise.resolve();
         };
 
         const testId = `${rootPathErrorWorkspace}/test_seg_fault.py::TestSegmentationFault::test_segfault`;
@@ -1038,8 +1034,8 @@ suite('End to End Tests: test adapters', () => {
             });
     });
 
-    test('_resolveExecution performance test: validates efficient test result processing', async () => {
-        // This test validates that _resolveExecution processes test results efficiently
+    test('resolveExecution performance test: validates efficient test result processing', async () => {
+        // This test validates that resolveExecution processes test results efficiently
         // without expensive tree rebuilding or linear searching operations.
         //
         // The test ensures that processing many test results (like parameterized tests)
@@ -1085,21 +1081,23 @@ suite('End to End Tests: test adapters', () => {
         const testItemUtilities = require('../../../client/testing/testController/common/testItemUtilities');
         testItemUtilities.getTestCaseNodes = getTestCaseNodesSpy;
 
+        // Stub isTestItemValid to always return true for performance test
+        // This prevents expensive tree searches during validation
+        const testItemIndexStub = sinon.stub((resultResolver as any).testItemIndex, 'isTestItemValid').returns(true);
+
         // Wrap the _resolveExecution function to measure performance
-        const original_resolveExecution = resultResolver._resolveExecution.bind(resultResolver);
-        resultResolver._resolveExecution = async (payload, runInstance) => {
+        const original_resolveExecution = resultResolver.resolveExecution.bind(resultResolver);
+        resultResolver.resolveExecution = (payload, runInstance) => {
             const startTime = performance.now();
             callCount++;
 
             // Call the actual implementation
-            await original_resolveExecution(payload, runInstance);
+            original_resolveExecution(payload, runInstance);
 
             const endTime = performance.now();
             const callTime = endTime - startTime;
             callTimes.push(callTime);
             totalCallTime += callTime;
-
-            return Promise.resolve();
         };
 
         // ================================================================
@@ -1160,7 +1158,8 @@ suite('End to End Tests: test adapters', () => {
         } // Create payload with multiple test results (simulates real test execution)
         const testResults: Record<string, any> = {};
         for (let i = 0; i < numParameterizedResults; i++) {
-            testResults[`test_0_${i % 20}`] = {
+            // Use test IDs that actually exist in our mock setup (test_0_0 through test_0_9)
+            testResults[`test_0_${i % testFunctionsPerFile}`] = {
                 test: `test_method[${i}]`,
                 outcome: 'success',
                 message: null,
@@ -1189,8 +1188,8 @@ suite('End to End Tests: test adapters', () => {
 
         const overallStartTime = performance.now();
 
-        // Run the _resolveExecution function with test data
-        await resultResolver._resolveExecution(payload, mockRunInstance as any);
+        // Run the resolveExecution function with test data
+        await resultResolver.resolveExecution(payload, mockRunInstance as any);
 
         const overallEndTime = performance.now();
         const totalTime = overallEndTime - overallStartTime;
@@ -1199,6 +1198,7 @@ suite('End to End Tests: test adapters', () => {
         // CLEANUP: Restore original functions
         // ================================================================
         testItemUtilities.getTestCaseNodes = originalGetTestCaseNodes;
+        testItemIndexStub.restore();
 
         // ================================================================
         // ASSERT: Verify efficient performance characteristics
@@ -1214,7 +1214,7 @@ suite('End to End Tests: test adapters', () => {
         console.log(`Results processed: ${numParameterizedResults}`);
 
         // Basic function call verification
-        assert.strictEqual(callCount, 1, 'Expected _resolveExecution to be called once');
+        assert.strictEqual(callCount, 1, 'Expected resolveExecution to be called once');
 
         // EFFICIENCY VERIFICATION: Ensure minimal expensive operations
         assert.strictEqual(
diff --git a/src/test/testing/testController/common/testCoverageHandler.unit.test.ts b/src/test/testing/testController/common/testCoverageHandler.unit.test.ts
new file mode 100644
index 000000000000..a81aed591128
--- /dev/null
+++ b/src/test/testing/testController/common/testCoverageHandler.unit.test.ts
@@ -0,0 +1,502 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+import { TestRun, Uri, FileCoverage } from 'vscode';
+import * as typemoq from 'typemoq';
+import * as assert from 'assert';
+import { TestCoverageHandler } from '../../../../client/testing/testController/common/testCoverageHandler';
+import { CoveragePayload } from '../../../../client/testing/testController/common/types';
+
+suite('TestCoverageHandler', () => {
+    let coverageHandler: TestCoverageHandler;
+    let runInstanceMock: typemoq.IMock<TestRun>;
+
+    setup(() => {
+        coverageHandler = new TestCoverageHandler();
+        runInstanceMock = typemoq.Mock.ofType<TestRun>();
+    });
+
+    suite('processCoverage', () => {
+        test('should return empty map for undefined result', () => {
+            const payload: CoveragePayload = {
+                coverage: true,
+                cwd: '/foo/bar',
+                result: undefined,
+                error: '',
+            };
+
+            const result = coverageHandler.processCoverage(payload, runInstanceMock.object);
+
+            assert.strictEqual(result.size, 0);
+            runInstanceMock.verify((r) => r.addCoverage(typemoq.It.isAny()), typemoq.Times.never());
+        });
+
+        test('should create FileCoverage for each file', () => {
+            const payload: CoveragePayload = {
+                coverage: true,
+                cwd: '/foo/bar',
+                result: {
+                    '/path/to/file1.py': {
+                        lines_covered: [1, 2, 3],
+                        lines_missed: [4, 5],
+                        executed_branches: 5,
+                        total_branches: 10,
+                    },
+                    '/path/to/file2.py': {
+                        lines_covered: [1, 2],
+                        lines_missed: [3],
+                        executed_branches: 2,
+                        total_branches: 4,
+                    },
+                },
+                error: '',
+            };
+
+            coverageHandler.processCoverage(payload, runInstanceMock.object);
+
+            runInstanceMock.verify((r) => r.addCoverage(typemoq.It.isAny()), typemoq.Times.exactly(2));
+        });
+
+        test('should call runInstance.addCoverage with correct FileCoverage', () => {
+            const payload: CoveragePayload = {
+                coverage: true,
+                cwd: '/foo/bar',
+                result: {
+                    '/path/to/file.py': {
+                        lines_covered: [1, 2, 3],
+                        lines_missed: [4, 5],
+                        executed_branches: 5,
+                        total_branches: 10,
+                    },
+                },
+                error: '',
+            };
+
+            let capturedCoverage: FileCoverage | undefined;
+            runInstanceMock
+                .setup((r) => r.addCoverage(typemoq.It.isAny()))
+                .callback((coverage: FileCoverage) => {
+                    capturedCoverage = coverage;
+                });
+
+            coverageHandler.processCoverage(payload, runInstanceMock.object);
+
+            assert.ok(capturedCoverage);
+            assert.strictEqual(capturedCoverage!.uri.fsPath, Uri.file('/path/to/file.py').fsPath);
+        });
+
+        test('should return detailed coverage map with correct keys', () => {
+            const payload: CoveragePayload = {
+                coverage: true,
+                cwd: '/foo/bar',
+                result: {
+                    '/path/to/file1.py': {
+                        lines_covered: [1, 2],
+                        lines_missed: [3],
+                        executed_branches: 2,
+                        total_branches: 4,
+                    },
+                    '/path/to/file2.py': {
+                        lines_covered: [5, 6, 7],
+                        lines_missed: [],
+                        executed_branches: 3,
+                        total_branches: 3,
+                    },
+                },
+                error: '',
+            };
+
+            const result = coverageHandler.processCoverage(payload, runInstanceMock.object);
+
+            assert.strictEqual(result.size, 2);
+            assert.ok(result.has(Uri.file('/path/to/file1.py').fsPath));
+            assert.ok(result.has(Uri.file('/path/to/file2.py').fsPath));
+        });
+
+        test('should handle empty coverage data', () => {
+            const payload: CoveragePayload = {
+                coverage: true,
+                cwd: '/foo/bar',
+                result: {},
+                error: '',
+            };
+
+            const result = coverageHandler.processCoverage(payload, runInstanceMock.object);
+
+            assert.strictEqual(result.size, 0);
+        });
+
+        test('should handle file with no covered lines', () => {
+            const payload: CoveragePayload = {
+                coverage: true,
+                cwd: '/foo/bar',
+                result: {
+                    '/path/to/file.py': {
+                        lines_covered: [],
+                        lines_missed: [1, 2, 3],
+                        executed_branches: 0,
+                        total_branches: 5,
+                    },
+                },
+                error: '',
+            };
+
+            const result = coverageHandler.processCoverage(payload, runInstanceMock.object);
+
+            const detailedCoverage = result.get(Uri.file('/path/to/file.py').fsPath);
+            assert.ok(detailedCoverage);
+            assert.strictEqual(detailedCoverage!.length, 3); // Only missed lines
+        });
+
+        test('should handle file with no missed lines', () => {
+            const payload: CoveragePayload = {
+                coverage: true,
+                cwd: '/foo/bar',
+                result: {
+                    '/path/to/file.py': {
+                        lines_covered: [1, 2, 3],
+                        lines_missed: [],
+                        executed_branches: 5,
+                        total_branches: 5,
+                    },
+                },
+                error: '',
+            };
+
+            const result = coverageHandler.processCoverage(payload, runInstanceMock.object);
+
+            const detailedCoverage = result.get(Uri.file('/path/to/file.py').fsPath);
+            assert.ok(detailedCoverage);
+            assert.strictEqual(detailedCoverage!.length, 3); // Only covered lines
+        });
+
+        test('should handle undefined lines_covered', () => {
+            const payload: CoveragePayload = {
+                coverage: true,
+                cwd: '/foo/bar',
+                result: {
+                    '/path/to/file.py': {
+                        lines_covered: undefined as any,
+                        lines_missed: [1, 2],
+                        executed_branches: 0,
+                        total_branches: 2,
+                    },
+                },
+                error: '',
+            };
+
+            const result = coverageHandler.processCoverage(payload, runInstanceMock.object);
+
+            const detailedCoverage = result.get(Uri.file('/path/to/file.py').fsPath);
+            assert.ok(detailedCoverage);
+            assert.strictEqual(detailedCoverage!.length, 2); // Only missed lines
+        });
+
+        test('should handle undefined lines_missed', () => {
+            const payload: CoveragePayload = {
+                coverage: true,
+                cwd: '/foo/bar',
+                result: {
+                    '/path/to/file.py': {
+                        lines_covered: [1, 2],
+                        lines_missed: undefined as any,
+                        executed_branches: 2,
+                        total_branches: 2,
+                    },
+                },
+                error: '',
+            };
+
+            const result = coverageHandler.processCoverage(payload, runInstanceMock.object);
+
+            const detailedCoverage = result.get(Uri.file('/path/to/file.py').fsPath);
+            assert.ok(detailedCoverage);
+            assert.strictEqual(detailedCoverage!.length, 2); // Only covered lines
+        });
+    });
+
+    suite('createFileCoverage', () => {
+        test('should handle line coverage only when totalBranches is -1', () => {
+            const payload: CoveragePayload = {
+                coverage: true,
+                cwd: '/foo/bar',
+                result: {
+                    '/path/to/file.py': {
+                        lines_covered: [1, 2, 3],
+                        lines_missed: [4, 5],
+                        executed_branches: 0,
+                        total_branches: -1, // Branch coverage disabled
+                    },
+                },
+                error: '',
+            };
+
+            let capturedCoverage: FileCoverage | undefined;
+            runInstanceMock
+                .setup((r) => r.addCoverage(typemoq.It.isAny()))
+                .callback((coverage: FileCoverage) => {
+                    capturedCoverage = coverage;
+                });
+
+            coverageHandler.processCoverage(payload, runInstanceMock.object);
+
+            assert.ok(capturedCoverage);
+            // Branch coverage should not be included
+            assert.strictEqual((capturedCoverage as any).branchCoverage, undefined);
+        });
+
+        test('should include branch coverage when available', () => {
+            const payload: CoveragePayload = {
+                coverage: true,
+                cwd: '/foo/bar',
+                result: {
+                    '/path/to/file.py': {
+                        lines_covered: [1, 2, 3],
+                        lines_missed: [4],
+                        executed_branches: 7,
+                        total_branches: 10,
+                    },
+                },
+                error: '',
+            };
+
+            let capturedCoverage: FileCoverage | undefined;
+            runInstanceMock
+                .setup((r) => r.addCoverage(typemoq.It.isAny()))
+                .callback((coverage: FileCoverage) => {
+                    capturedCoverage = coverage;
+                });
+
+            coverageHandler.processCoverage(payload, runInstanceMock.object);
+
+            assert.ok(capturedCoverage);
+            // Should have branch coverage
+            assert.ok((capturedCoverage as any).branchCoverage);
+        });
+
+        test('should calculate line coverage counts correctly', () => {
+            const payload: CoveragePayload = {
+                coverage: true,
+                cwd: '/foo/bar',
+                result: {
+                    '/path/to/file.py': {
+                        lines_covered: [1, 2, 3, 4, 5],
+                        lines_missed: [6, 7],
+                        executed_branches: 0,
+                        total_branches: -1,
+                    },
+                },
+                error: '',
+            };
+
+            let capturedCoverage: FileCoverage | undefined;
+            runInstanceMock
+                .setup((r) => r.addCoverage(typemoq.It.isAny()))
+                .callback((coverage: FileCoverage) => {
+                    capturedCoverage = coverage;
+                });
+
+            coverageHandler.processCoverage(payload, runInstanceMock.object);
+
+            assert.ok(capturedCoverage);
+            // 5 covered out of 7 total (5 covered + 2 missed)
+            assert.strictEqual((capturedCoverage as any).statementCoverage.covered, 5);
+            assert.strictEqual((capturedCoverage as any).statementCoverage.total, 7);
+        });
+    });
+
+    suite('createDetailedCoverage', () => {
+        test('should create StatementCoverage for covered lines', () => {
+            const payload: CoveragePayload = {
+                coverage: true,
+                cwd: '/foo/bar',
+                result: {
+                    '/path/to/file.py': {
+                        lines_covered: [1, 2, 3],
+                        lines_missed: [],
+                        executed_branches: 0,
+                        total_branches: -1,
+                    },
+                },
+                error: '',
+            };
+
+            const result = coverageHandler.processCoverage(payload, runInstanceMock.object);
+
+            const detailedCoverage = result.get(Uri.file('/path/to/file.py').fsPath);
+            assert.ok(detailedCoverage);
+            assert.strictEqual(detailedCoverage!.length, 3);
+
+            // All should be covered (true)
+            detailedCoverage!.forEach((coverage) => {
+                assert.strictEqual((coverage as any).executed, true);
+            });
+        });
+
+        test('should create StatementCoverage for missed lines', () => {
+            const payload: CoveragePayload = {
+                coverage: true,
+                cwd: '/foo/bar',
+                result: {
+                    '/path/to/file.py': {
+                        lines_covered: [],
+                        lines_missed: [1, 2, 3],
+                        executed_branches: 0,
+                        total_branches: -1,
+                    },
+                },
+                error: '',
+            };
+
+            const result = coverageHandler.processCoverage(payload, runInstanceMock.object);
+
+            const detailedCoverage = result.get(Uri.file('/path/to/file.py').fsPath);
+            assert.ok(detailedCoverage);
+            assert.strictEqual(detailedCoverage!.length, 3);
+
+            // All should be NOT covered (false)
+            detailedCoverage!.forEach((coverage) => {
+                assert.strictEqual((coverage as any).executed, false);
+            });
+        });
+
+        test('should convert 1-indexed to 0-indexed line numbers for covered lines', () => {
+            const payload: CoveragePayload = {
+                coverage: true,
+                cwd: '/foo/bar',
+                result: {
+                    '/path/to/file.py': {
+                        lines_covered: [1, 5, 10],
+                        lines_missed: [],
+                        executed_branches: 0,
+                        total_branches: -1,
+                    },
+                },
+                error: '',
+            };
+
+            const result = coverageHandler.processCoverage(payload, runInstanceMock.object);
+
+            const detailedCoverage = result.get(Uri.file('/path/to/file.py').fsPath);
+            assert.ok(detailedCoverage);
+
+            // Line 1 should map to range starting at line 0
+            assert.strictEqual((detailedCoverage![0] as any).location.start.line, 0);
+            // Line 5 should map to range starting at line 4
+            assert.strictEqual((detailedCoverage![1] as any).location.start.line, 4);
+            // Line 10 should map to range starting at line 9
+            assert.strictEqual((detailedCoverage![2] as any).location.start.line, 9);
+        });
+
+        test('should convert 1-indexed to 0-indexed line numbers for missed lines', () => {
+            const payload: CoveragePayload = {
+                coverage: true,
+                cwd: '/foo/bar',
+                result: {
+                    '/path/to/file.py': {
+                        lines_covered: [],
+                        lines_missed: [3, 7, 12],
+                        executed_branches: 0,
+                        total_branches: -1,
+                    },
+                },
+                error: '',
+            };
+
+            const result = coverageHandler.processCoverage(payload, runInstanceMock.object);
+
+            const detailedCoverage = result.get(Uri.file('/path/to/file.py').fsPath);
+            assert.ok(detailedCoverage);
+
+            // Line 3 should map to range starting at line 2
+            assert.strictEqual((detailedCoverage![0] as any).location.start.line, 2);
+            // Line 7 should map to range starting at line 6
+            assert.strictEqual((detailedCoverage![1] as any).location.start.line, 6);
+            // Line 12 should map to range starting at line 11
+            assert.strictEqual((detailedCoverage![2] as any).location.start.line, 11);
+        });
+
+        test('should handle large line numbers', () => {
+            const payload: CoveragePayload = {
+                coverage: true,
+                cwd: '/foo/bar',
+                result: {
+                    '/path/to/file.py': {
+                        lines_covered: [1000, 5000, 10000],
+                        lines_missed: [],
+                        executed_branches: 0,
+                        total_branches: -1,
+                    },
+                },
+                error: '',
+            };
+
+            const result = coverageHandler.processCoverage(payload, runInstanceMock.object);
+
+            const detailedCoverage = result.get(Uri.file('/path/to/file.py').fsPath);
+            assert.ok(detailedCoverage);
+            assert.strictEqual(detailedCoverage!.length, 3);
+
+            // Verify conversion is correct for large numbers
+            assert.strictEqual((detailedCoverage![0] as any).location.start.line, 999);
+            assert.strictEqual((detailedCoverage![1] as any).location.start.line, 4999);
+            assert.strictEqual((detailedCoverage![2] as any).location.start.line, 9999);
+        });
+
+        test('should create detailed coverage with both covered and missed lines', () => {
+            const payload: CoveragePayload = {
+                coverage: true,
+                cwd: '/foo/bar',
+                result: {
+                    '/path/to/file.py': {
+                        lines_covered: [1, 3, 5],
+                        lines_missed: [2, 4, 6],
+                        executed_branches: 3,
+                        total_branches: 6,
+                    },
+                },
+                error: '',
+            };
+
+            const result = coverageHandler.processCoverage(payload, runInstanceMock.object);
+
+            const detailedCoverage = result.get(Uri.file('/path/to/file.py').fsPath);
+            assert.ok(detailedCoverage);
+            assert.strictEqual(detailedCoverage!.length, 6); // 3 covered + 3 missed
+
+            // Count covered vs not covered
+            const covered = detailedCoverage!.filter((c) => (c as any).executed === true);
+            const notCovered = detailedCoverage!.filter((c) => (c as any).executed === false);
+
+            assert.strictEqual(covered.length, 3);
+            assert.strictEqual(notCovered.length, 3);
+        });
+
+        test('should set range to cover entire line', () => {
+            const payload: CoveragePayload = {
+                coverage: true,
+                cwd: '/foo/bar',
+                result: {
+                    '/path/to/file.py': {
+                        lines_covered: [1],
+                        lines_missed: [],
+                        executed_branches: 0,
+                        total_branches: -1,
+                    },
+                },
+                error: '',
+            };
+
+            const result = coverageHandler.processCoverage(payload, runInstanceMock.object);
+
+            const detailedCoverage = result.get(Uri.file('/path/to/file.py').fsPath);
+            assert.ok(detailedCoverage);
+
+            const coverage = detailedCoverage![0] as any;
+            // Start at column 0
+            assert.strictEqual(coverage.location.start.character, 0);
+            // End at max safe integer (entire line)
+            assert.strictEqual(coverage.location.end.character, Number.MAX_SAFE_INTEGER);
+        });
+    });
+});
diff --git a/src/test/testing/testController/common/testDiscoveryHandler.unit.test.ts b/src/test/testing/testController/common/testDiscoveryHandler.unit.test.ts
new file mode 100644
index 000000000000..458e3d984405
--- /dev/null
+++ b/src/test/testing/testController/common/testDiscoveryHandler.unit.test.ts
@@ -0,0 +1,517 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+import { TestController, TestItem, Uri, CancellationToken, TestItemCollection } from 'vscode';
+import * as typemoq from 'typemoq';
+import * as assert from 'assert';
+import * as sinon from 'sinon';
+import { TestDiscoveryHandler } from '../../../../client/testing/testController/common/testDiscoveryHandler';
+import { TestItemIndex } from '../../../../client/testing/testController/common/testItemIndex';
+import { DiscoveredTestPayload, DiscoveredTestNode } from '../../../../client/testing/testController/common/types';
+import { TestProvider } from '../../../../client/testing/types';
+import * as utils from '../../../../client/testing/testController/common/utils';
+import * as testItemUtilities from '../../../../client/testing/testController/common/testItemUtilities';
+
+suite('TestDiscoveryHandler', () => {
+    let discoveryHandler: TestDiscoveryHandler;
+    let testControllerMock: typemoq.IMock<TestController>;
+    let testItemIndexMock: typemoq.IMock<TestItemIndex>;
+    let testItemCollectionMock: typemoq.IMock<TestItemCollection>;
+    let workspaceUri: Uri;
+    let testProvider: TestProvider;
+    let cancelationToken: CancellationToken;
+
+    setup(() => {
+        discoveryHandler = new TestDiscoveryHandler();
+        testControllerMock = typemoq.Mock.ofType<TestController>();
+        testItemIndexMock = typemoq.Mock.ofType<TestItemIndex>();
+        testItemCollectionMock = typemoq.Mock.ofType<TestItemCollection>();
+
+        // Setup default test controller items mock
+        testControllerMock.setup((t) => t.items).returns(() => testItemCollectionMock.object);
+        testItemCollectionMock.setup((x) => x.delete(typemoq.It.isAny())).returns(() => undefined);
+        testItemCollectionMock.setup((x) => x.get(typemoq.It.isAny())).returns(() => undefined);
+        testItemCollectionMock.setup((x) => x.add(typemoq.It.isAny())).returns(() => undefined);
+
+        workspaceUri = Uri.file('/foo/bar');
+        testProvider = 'pytest';
+        cancelationToken = ({
+            isCancellationRequested: false,
+        } as unknown) as CancellationToken;
+    });
+
+    teardown(() => {
+        sinon.restore();
+    });
+
+    suite('processDiscovery', () => {
+        test('should handle null payload gracefully', () => {
+            discoveryHandler.processDiscovery(
+                null as any,
+                testControllerMock.object,
+                testItemIndexMock.object,
+                workspaceUri,
+                testProvider,
+                cancelationToken,
+            );
+
+            // Should not throw and should not call populateTestTree
+            testItemIndexMock.verify((x) => x.clear(), typemoq.Times.never());
+        });
+
+        test('should call populateTestTree with correct params on success', () => {
+            const tests: DiscoveredTestNode = {
+                path: '/foo/bar',
+                name: 'root',
+                type_: 'folder',
+                id_: 'root_id',
+                children: [],
+            };
+
+            const payload: DiscoveredTestPayload = {
+                cwd: workspaceUri.fsPath,
+                status: 'success',
+                tests,
+            };
+
+            const populateTestTreeStub = sinon.stub(utils, 'populateTestTree');
+            testItemIndexMock.setup((x) => x.clear()).returns(() => undefined);
+
+            // Setup map getters for populateTestTree
+            const mockRunIdMap = new Map();
+            const mockVSidMap = new Map();
+            const mockVStoRunMap = new Map();
+            testItemIndexMock.setup((x) => x.runIdToTestItemMap).returns(() => mockRunIdMap);
+            testItemIndexMock.setup((x) => x.runIdToVSidMap).returns(() => mockVSidMap);
+            testItemIndexMock.setup((x) => x.vsIdToRunIdMap).returns(() => mockVStoRunMap);
+
+            discoveryHandler.processDiscovery(
+                payload,
+                testControllerMock.object,
+                testItemIndexMock.object,
+                workspaceUri,
+                testProvider,
+                cancelationToken,
+            );
+
+            testItemIndexMock.verify((x) => x.clear(), typemoq.Times.once());
+            assert.ok(populateTestTreeStub.calledOnce);
+            sinon.assert.calledWith(
+                populateTestTreeStub,
+                testControllerMock.object,
+                tests,
+                undefined,
+                sinon.match.any,
+                cancelationToken,
+            );
+        });
+
+        test('should clear index before populating', () => {
+            const tests: DiscoveredTestNode = {
+                path: '/foo/bar',
+                name: 'root',
+                type_: 'folder',
+                id_: 'root_id',
+                children: [],
+            };
+
+            const payload: DiscoveredTestPayload = {
+                cwd: workspaceUri.fsPath,
+                status: 'success',
+                tests,
+            };
+
+            sinon.stub(utils, 'populateTestTree');
+
+            const clearSpy = sinon.spy();
+            testItemIndexMock.setup((x) => x.clear()).callback(clearSpy);
+            testItemIndexMock.setup((x) => x.runIdToTestItemMap).returns(() => new Map());
+            testItemIndexMock.setup((x) => x.runIdToVSidMap).returns(() => new Map());
+            testItemIndexMock.setup((x) => x.vsIdToRunIdMap).returns(() => new Map());
+
+            discoveryHandler.processDiscovery(
+                payload,
+                testControllerMock.object,
+                testItemIndexMock.object,
+                workspaceUri,
+                testProvider,
+                cancelationToken,
+            );
+
+            assert.ok(clearSpy.calledOnce);
+        });
+
+        test('should handle error status and create error node', () => {
+            const payload: DiscoveredTestPayload = {
+                cwd: workspaceUri.fsPath,
+                status: 'error',
+                error: ['Error message 1', 'Error message 2'],
+            };
+
+            const createErrorNodeSpy = sinon.spy(discoveryHandler, 'createErrorNode');
+
+            // Mock createTestItem to return a proper TestItem
+            const mockErrorItem = ({
+                id: 'error_id',
+                error: null,
+                canResolveChildren: false,
+                tags: [],
+            } as unknown) as TestItem;
+            testControllerMock
+                .setup((t) => t.createTestItem(typemoq.It.isAny(), typemoq.It.isAny()))
+                .returns(() => mockErrorItem);
+
+            discoveryHandler.processDiscovery(
+                payload,
+                testControllerMock.object,
+                testItemIndexMock.object,
+                workspaceUri,
+                testProvider,
+                cancelationToken,
+            );
+
+            assert.ok(createErrorNodeSpy.calledOnce);
+            assert.ok(
+                createErrorNodeSpy.calledWith(testControllerMock.object, workspaceUri, payload.error, testProvider),
+            );
+        });
+
+        test('should handle both errors and tests in same payload', () => {
+            const tests: DiscoveredTestNode = {
+                path: '/foo/bar',
+                name: 'root',
+                type_: 'folder',
+                id_: 'root_id',
+                children: [],
+            };
+
+            const payload: DiscoveredTestPayload = {
+                cwd: workspaceUri.fsPath,
+                status: 'error',
+                error: ['Partial error'],
+                tests,
+            };
+
+            sinon.stub(utils, 'populateTestTree');
+            const createErrorNodeSpy = sinon.spy(discoveryHandler, 'createErrorNode');
+
+            // Mock createTestItem to return a proper TestItem
+            const mockErrorItem = ({
+                id: 'error_id',
+                error: null,
+                canResolveChildren: false,
+                tags: [],
+            } as unknown) as TestItem;
+            testControllerMock
+                .setup((t) => t.createTestItem(typemoq.It.isAny(), typemoq.It.isAny()))
+                .returns(() => mockErrorItem);
+
+            testItemIndexMock.setup((x) => x.clear()).returns(() => undefined);
+            testItemIndexMock.setup((x) => x.runIdToTestItemMap).returns(() => new Map());
+            testItemIndexMock.setup((x) => x.runIdToVSidMap).returns(() => new Map());
+            testItemIndexMock.setup((x) => x.vsIdToRunIdMap).returns(() => new Map());
+
+            discoveryHandler.processDiscovery(
+                payload,
+                testControllerMock.object,
+                testItemIndexMock.object,
+                workspaceUri,
+                testProvider,
+                cancelationToken,
+            );
+
+            // Should create error node AND populate test tree
+            assert.ok(createErrorNodeSpy.calledOnce);
+            testItemIndexMock.verify((x) => x.clear(), typemoq.Times.once());
+        });
+
+        test('should delete error node on successful discovery', () => {
+            const tests: DiscoveredTestNode = {
+                path: '/foo/bar',
+                name: 'root',
+                type_: 'folder',
+                id_: 'root_id',
+                children: [],
+            };
+
+            const payload: DiscoveredTestPayload = {
+                cwd: workspaceUri.fsPath,
+                status: 'success',
+                tests,
+            };
+
+            const deleteSpy = sinon.spy();
+            // Reset and reconfigure the collection mock to capture delete call
+            testItemCollectionMock.reset();
+            testItemCollectionMock
+                .setup((x) => x.delete(typemoq.It.isAny()))
+                .callback(deleteSpy)
+                .returns(() => undefined);
+            testItemCollectionMock.setup((x) => x.get(typemoq.It.isAny())).returns(() => undefined);
+            testItemCollectionMock.setup((x) => x.add(typemoq.It.isAny())).returns(() => undefined);
+            testControllerMock.reset();
+            testControllerMock.setup((t) => t.items).returns(() => testItemCollectionMock.object);
+
+            sinon.stub(utils, 'populateTestTree');
+            testItemIndexMock.setup((x) => x.clear()).returns(() => undefined);
+            testItemIndexMock.setup((x) => x.runIdToTestItemMap).returns(() => new Map());
+            testItemIndexMock.setup((x) => x.runIdToVSidMap).returns(() => new Map());
+            testItemIndexMock.setup((x) => x.vsIdToRunIdMap).returns(() => new Map());
+
+            discoveryHandler.processDiscovery(
+                payload,
+                testControllerMock.object,
+                testItemIndexMock.object,
+                workspaceUri,
+                testProvider,
+                cancelationToken,
+            );
+
+            assert.ok(deleteSpy.calledOnce);
+            assert.ok(deleteSpy.calledWith(`DiscoveryError:${workspaceUri.fsPath}`));
+        });
+
+        test('should respect cancellation token', () => {
+            const tests: DiscoveredTestNode = {
+                path: '/foo/bar',
+                name: 'root',
+                type_: 'folder',
+                id_: 'root_id',
+                children: [],
+            };
+
+            const payload: DiscoveredTestPayload = {
+                cwd: workspaceUri.fsPath,
+                status: 'success',
+                tests,
+            };
+
+            const populateTestTreeStub = sinon.stub(utils, 'populateTestTree');
+            testItemIndexMock.setup((x) => x.clear()).returns(() => undefined);
+            testItemIndexMock.setup((x) => x.runIdToTestItemMap).returns(() => new Map());
+            testItemIndexMock.setup((x) => x.runIdToVSidMap).returns(() => new Map());
+            testItemIndexMock.setup((x) => x.vsIdToRunIdMap).returns(() => new Map());
+
+            discoveryHandler.processDiscovery(
+                payload,
+                testControllerMock.object,
+                testItemIndexMock.object,
+                workspaceUri,
+                testProvider,
+                cancelationToken,
+            );
+
+            // Verify token was passed to populateTestTree
+            assert.ok(populateTestTreeStub.calledOnce);
+            const lastArg = populateTestTreeStub.getCall(0).args[4];
+            assert.strictEqual(lastArg, cancelationToken);
+        });
+
+        test('should handle null tests in payload', () => {
+            const payload: DiscoveredTestPayload = {
+                cwd: workspaceUri.fsPath,
+                status: 'success',
+                tests: null as any,
+            };
+
+            const populateTestTreeStub = sinon.stub(utils, 'populateTestTree');
+            testItemIndexMock.setup((x) => x.clear()).returns(() => undefined);
+            testItemIndexMock.setup((x) => x.runIdToTestItemMap).returns(() => new Map());
+            testItemIndexMock.setup((x) => x.runIdToVSidMap).returns(() => new Map());
+            testItemIndexMock.setup((x) => x.vsIdToRunIdMap).returns(() => new Map());
+
+            discoveryHandler.processDiscovery(
+                payload,
+                testControllerMock.object,
+                testItemIndexMock.object,
+                workspaceUri,
+                testProvider,
+                cancelationToken,
+            );
+
+            // Should still call populateTestTree with null
+            assert.ok(populateTestTreeStub.calledOnce);
+            testItemIndexMock.verify((x) => x.clear(), typemoq.Times.once());
+        });
+    });
+
+    suite('createErrorNode', () => {
+        test('should create error with correct message for pytest', () => {
+            const error = ['Error line 1', 'Error line 2'];
+            testProvider = 'pytest';
+
+            const buildErrorNodeOptionsStub = sinon.stub(utils, 'buildErrorNodeOptions').returns({
+                id: 'error_id',
+                label: 'Error Label',
+                error: 'Error Message',
+            });
+
+            const mockErrorItem = ({
+                id: 'error_id',
+                error: null,
+            } as unknown) as TestItem;
+
+            const createErrorTestItemStub = sinon.stub(testItemUtilities, 'createErrorTestItem').returns(mockErrorItem);
+
+            const testItemCollectionMock = typemoq.Mock.ofType<TestItemCollection>();
+            testItemCollectionMock.setup((x) => x.get(typemoq.It.isAny())).returns(() => undefined);
+            testItemCollectionMock.setup((x) => x.add(typemoq.It.isAny())).returns(() => undefined);
+            testControllerMock.setup((t) => t.items).returns(() => testItemCollectionMock.object);
+
+            discoveryHandler.createErrorNode(testControllerMock.object, workspaceUri, error, testProvider);
+
+            assert.ok(buildErrorNodeOptionsStub.calledOnce);
+            assert.ok(createErrorTestItemStub.calledOnce);
+            assert.ok(mockErrorItem.error !== null);
+        });
+
+        test('should create error with correct message for unittest', () => {
+            const error = ['Unittest error'];
+            testProvider = 'unittest';
+
+            sinon.stub(utils, 'buildErrorNodeOptions').returns({
+                id: 'error_id',
+                label: 'Error Label',
+                error: 'Error Message',
+            });
+
+            const mockErrorItem = ({
+                id: 'error_id',
+                error: null,
+            } as unknown) as TestItem;
+
+            sinon.stub(testItemUtilities, 'createErrorTestItem').returns(mockErrorItem);
+
+            const testItemCollectionMock = typemoq.Mock.ofType<TestItemCollection>();
+            testItemCollectionMock.setup((x) => x.get(typemoq.It.isAny())).returns(() => undefined);
+            testItemCollectionMock.setup((x) => x.add(typemoq.It.isAny())).returns(() => undefined);
+            testControllerMock.setup((t) => t.items).returns(() => testItemCollectionMock.object);
+
+            discoveryHandler.createErrorNode(testControllerMock.object, workspaceUri, error, testProvider);
+
+            assert.ok(mockErrorItem.error !== null);
+        });
+
+        test('should set markdown error label correctly', () => {
+            const error = ['Test error'];
+
+            sinon.stub(utils, 'buildErrorNodeOptions').returns({
+                id: 'error_id',
+                label: 'Error Label',
+                error: 'Error Message',
+            });
+
+            const mockErrorItem = ({
+                id: 'error_id',
+                error: null,
+            } as unknown) as TestItem;
+
+            sinon.stub(testItemUtilities, 'createErrorTestItem').returns(mockErrorItem);
+
+            const testItemCollectionMock = typemoq.Mock.ofType<TestItemCollection>();
+            testItemCollectionMock.setup((x) => x.get(typemoq.It.isAny())).returns(() => undefined);
+            testItemCollectionMock.setup((x) => x.add(typemoq.It.isAny())).returns(() => undefined);
+            testControllerMock.setup((t) => t.items).returns(() => testItemCollectionMock.object);
+
+            discoveryHandler.createErrorNode(testControllerMock.object, workspaceUri, error, testProvider);
+
+            assert.ok(mockErrorItem.error);
+            assert.strictEqual(
+                (mockErrorItem.error as any).value,
+                '[Show output](command:python.viewOutput) to view error logs',
+            );
+            assert.strictEqual((mockErrorItem.error as any).isTrusted, true);
+        });
+
+        test('should handle undefined error array', () => {
+            sinon.stub(utils, 'buildErrorNodeOptions').returns({
+                id: 'error_id',
+                label: 'Error Label',
+                error: 'Error Message',
+            });
+
+            const mockErrorItem = ({
+                id: 'error_id',
+                error: null,
+            } as unknown) as TestItem;
+
+            sinon.stub(testItemUtilities, 'createErrorTestItem').returns(mockErrorItem);
+
+            const testItemCollectionMock = typemoq.Mock.ofType<TestItemCollection>();
+            testItemCollectionMock.setup((x) => x.get(typemoq.It.isAny())).returns(() => undefined);
+            testItemCollectionMock.setup((x) => x.add(typemoq.It.isAny())).returns(() => undefined);
+            testControllerMock.setup((t) => t.items).returns(() => testItemCollectionMock.object);
+
+            discoveryHandler.createErrorNode(testControllerMock.object, workspaceUri, undefined, testProvider);
+
+            // Should not throw
+            assert.ok(mockErrorItem.error !== null);
+        });
+
+        test('should reuse existing error node if present', () => {
+            const error = ['Error'];
+
+            // Create a proper object with settable error property
+            const existingErrorItem: any = {
+                id: `DiscoveryError:${workspaceUri.fsPath}`,
+                error: null,
+                canResolveChildren: false,
+                tags: [],
+            };
+
+            sinon.stub(utils, 'buildErrorNodeOptions').returns({
+                id: `DiscoveryError:${workspaceUri.fsPath}`,
+                label: 'Error Label',
+                error: 'Error Message',
+            });
+
+            const createErrorTestItemStub = sinon.stub(testItemUtilities, 'createErrorTestItem');
+
+            // Reset and setup collection to return existing item
+            testItemCollectionMock.reset();
+            testItemCollectionMock
+                .setup((x) => x.get(`DiscoveryError:${workspaceUri.fsPath}`))
+                .returns(() => existingErrorItem);
+            testItemCollectionMock.setup((x) => x.add(typemoq.It.isAny())).returns(() => undefined);
+            testControllerMock.reset();
+            testControllerMock.setup((t) => t.items).returns(() => testItemCollectionMock.object);
+
+            discoveryHandler.createErrorNode(testControllerMock.object, workspaceUri, error, testProvider);
+
+            // Should not create a new error item
+            assert.ok(createErrorTestItemStub.notCalled);
+            // Should still update the error property
+            assert.ok(existingErrorItem.error !== null);
+        });
+
+        test('should handle multiple error messages', () => {
+            const error = ['Error 1', 'Error 2', 'Error 3'];
+
+            const buildStub = sinon.stub(utils, 'buildErrorNodeOptions').returns({
+                id: 'error_id',
+                label: 'Error Label',
+                error: 'Error Message',
+            });
+
+            const mockErrorItem = ({
+                id: 'error_id',
+                error: null,
+            } as unknown) as TestItem;
+
+            sinon.stub(testItemUtilities, 'createErrorTestItem').returns(mockErrorItem);
+
+            const testItemCollectionMock = typemoq.Mock.ofType<TestItemCollection>();
+            testItemCollectionMock.setup((x) => x.get(typemoq.It.isAny())).returns(() => undefined);
+            testItemCollectionMock.setup((x) => x.add(typemoq.It.isAny())).returns(() => undefined);
+            testControllerMock.setup((t) => t.items).returns(() => testItemCollectionMock.object);
+
+            discoveryHandler.createErrorNode(testControllerMock.object, workspaceUri, error, testProvider);
+
+            // Verify the error messages are joined
+            const expectedMessage = sinon.match((value: string) => {
+                return value.includes('Error 1') && value.includes('Error 2') && value.includes('Error 3');
+            });
+            sinon.assert.calledWith(buildStub, workspaceUri, expectedMessage, testProvider);
+        });
+    });
+});
diff --git a/src/test/testing/testController/common/testExecutionHandler.unit.test.ts b/src/test/testing/testController/common/testExecutionHandler.unit.test.ts
new file mode 100644
index 000000000000..c6be4548c192
--- /dev/null
+++ b/src/test/testing/testController/common/testExecutionHandler.unit.test.ts
@@ -0,0 +1,922 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+import { TestController, TestItem, TestRun, TestMessage, Uri, Range, TestItemCollection, MarkdownString } from 'vscode';
+import * as typemoq from 'typemoq';
+import * as assert from 'assert';
+import * as sinon from 'sinon';
+import { TestExecutionHandler } from '../../../../client/testing/testController/common/testExecutionHandler';
+import { TestItemIndex } from '../../../../client/testing/testController/common/testItemIndex';
+import { ExecutionTestPayload } from '../../../../client/testing/testController/common/types';
+
+suite('TestExecutionHandler', () => {
+    let executionHandler: TestExecutionHandler;
+    let testControllerMock: typemoq.IMock<TestController>;
+    let testItemIndexMock: typemoq.IMock<TestItemIndex>;
+    let runInstanceMock: typemoq.IMock<TestRun>;
+    let mockTestItem: TestItem;
+    let mockParentItem: TestItem;
+
+    setup(() => {
+        executionHandler = new TestExecutionHandler();
+        testControllerMock = typemoq.Mock.ofType<TestController>();
+        testItemIndexMock = typemoq.Mock.ofType<TestItemIndex>();
+        runInstanceMock = typemoq.Mock.ofType<TestRun>();
+
+        mockTestItem = createMockTestItem('test1', 'Test 1');
+        mockParentItem = createMockTestItem('parentTest', 'Parent Test');
+    });
+
+    teardown(() => {
+        sinon.restore();
+    });
+
+    suite('processExecution', () => {
+        test('should process empty payload without errors', () => {
+            const payload: ExecutionTestPayload = {
+                cwd: '/foo/bar',
+                status: 'success',
+                result: {},
+                error: '',
+            };
+
+            executionHandler.processExecution(
+                payload,
+                runInstanceMock.object,
+                testItemIndexMock.object,
+                testControllerMock.object,
+            );
+
+            // No errors should be thrown
+        });
+
+        test('should process undefined result without errors', () => {
+            const payload: ExecutionTestPayload = {
+                cwd: '/foo/bar',
+                status: 'success',
+                error: '',
+            };
+
+            executionHandler.processExecution(
+                payload,
+                runInstanceMock.object,
+                testItemIndexMock.object,
+                testControllerMock.object,
+            );
+
+            // No errors should be thrown
+        });
+
+        test('should process multiple test results', () => {
+            const payload: ExecutionTestPayload = {
+                cwd: '/foo/bar',
+                status: 'success',
+                result: {
+                    test1: { test: 'test1', outcome: 'success', message: '', traceback: '' },
+                    test2: { test: 'test2', outcome: 'failure', message: 'Failed', traceback: 'traceback' },
+                },
+                error: '',
+            };
+
+            const mockTestItem2 = createMockTestItem('test2', 'Test 2');
+
+            testItemIndexMock
+                .setup((x) => x.getTestItem('test1', testControllerMock.object))
+                .returns(() => mockTestItem);
+            testItemIndexMock
+                .setup((x) => x.getTestItem('test2', testControllerMock.object))
+                .returns(() => mockTestItem2);
+
+            executionHandler.processExecution(
+                payload,
+                runInstanceMock.object,
+                testItemIndexMock.object,
+                testControllerMock.object,
+            );
+
+            runInstanceMock.verify((r) => r.passed(mockTestItem), typemoq.Times.once());
+            runInstanceMock.verify((r) => r.failed(mockTestItem2, typemoq.It.isAny()), typemoq.Times.once());
+        });
+    });
+
+    suite('handleTestError', () => {
+        test('should create error message with traceback', () => {
+            const payload: ExecutionTestPayload = {
+                cwd: '/foo/bar',
+                status: 'success',
+                result: {
+                    test1: {
+                        test: 'test1',
+                        outcome: 'error',
+                        message: 'Error occurred',
+                        traceback: 'line1\nline2\nline3',
+                    },
+                },
+                error: '',
+            };
+
+            testItemIndexMock
+                .setup((x) => x.getTestItem('test1', testControllerMock.object))
+                .returns(() => mockTestItem);
+
+            let capturedMessage: TestMessage | undefined;
+            runInstanceMock
+                .setup((r) => r.errored(mockTestItem, typemoq.It.isAny()))
+                .callback((_, message: TestMessage) => {
+                    capturedMessage = message;
+                });
+
+            executionHandler.processExecution(
+                payload,
+                runInstanceMock.object,
+                testItemIndexMock.object,
+                testControllerMock.object,
+            );
+
+            assert.ok(capturedMessage);
+            const messageText =
+                capturedMessage!.message instanceof MarkdownString
+                    ? capturedMessage!.message.value
+                    : capturedMessage!.message;
+            assert.ok(messageText.includes('Error occurred'));
+            assert.ok(messageText.includes('line1'));
+            assert.ok(messageText.includes('line2'));
+            runInstanceMock.verify((r) => r.errored(mockTestItem, typemoq.It.isAny()), typemoq.Times.once());
+        });
+
+        test('should set location when test item has range', () => {
+            const payload: ExecutionTestPayload = {
+                cwd: '/foo/bar',
+                status: 'success',
+                result: {
+                    test1: {
+                        test: 'test1',
+                        outcome: 'error',
+                        message: 'Error',
+                        traceback: '',
+                    },
+                },
+                error: '',
+            };
+
+            testItemIndexMock
+                .setup((x) => x.getTestItem('test1', testControllerMock.object))
+                .returns(() => mockTestItem);
+
+            let capturedMessage: TestMessage | undefined;
+            runInstanceMock
+                .setup((r) => r.errored(mockTestItem, typemoq.It.isAny()))
+                .callback((_, message: TestMessage) => {
+                    capturedMessage = message;
+                });
+
+            executionHandler.processExecution(
+                payload,
+                runInstanceMock.object,
+                testItemIndexMock.object,
+                testControllerMock.object,
+            );
+
+            assert.ok(capturedMessage);
+            assert.ok(capturedMessage!.location);
+            assert.strictEqual(capturedMessage!.location!.uri.fsPath, mockTestItem.uri!.fsPath);
+        });
+
+        test('should handle missing traceback', () => {
+            const payload: ExecutionTestPayload = {
+                cwd: '/foo/bar',
+                status: 'success',
+                result: {
+                    test1: {
+                        test: 'test1',
+                        outcome: 'error',
+                        message: 'Error',
+                    },
+                },
+                error: '',
+            };
+
+            testItemIndexMock
+                .setup((x) => x.getTestItem('test1', testControllerMock.object))
+                .returns(() => mockTestItem);
+
+            executionHandler.processExecution(
+                payload,
+                runInstanceMock.object,
+                testItemIndexMock.object,
+                testControllerMock.object,
+            );
+
+            runInstanceMock.verify((r) => r.errored(mockTestItem, typemoq.It.isAny()), typemoq.Times.once());
+        });
+    });
+
+    suite('handleTestFailure', () => {
+        test('should create failure message with traceback', () => {
+            const payload: ExecutionTestPayload = {
+                cwd: '/foo/bar',
+                status: 'success',
+                result: {
+                    test1: {
+                        test: 'test1',
+                        outcome: 'failure',
+                        message: 'Assertion failed',
+                        traceback: 'AssertionError\nline1',
+                    },
+                },
+                error: '',
+            };
+
+            testItemIndexMock
+                .setup((x) => x.getTestItem('test1', testControllerMock.object))
+                .returns(() => mockTestItem);
+
+            let capturedMessage: TestMessage | undefined;
+            runInstanceMock
+                .setup((r) => r.failed(mockTestItem, typemoq.It.isAny()))
+                .callback((_, message: TestMessage) => {
+                    capturedMessage = message;
+                });
+
+            executionHandler.processExecution(
+                payload,
+                runInstanceMock.object,
+                testItemIndexMock.object,
+                testControllerMock.object,
+            );
+
+            assert.ok(capturedMessage);
+            const messageText =
+                capturedMessage!.message instanceof MarkdownString
+                    ? capturedMessage!.message.value
+                    : capturedMessage!.message;
+            assert.ok(messageText.includes('Assertion failed'));
+            assert.ok(messageText.includes('AssertionError'));
+            runInstanceMock.verify((r) => r.failed(mockTestItem, typemoq.It.isAny()), typemoq.Times.once());
+        });
+
+        test('should handle passed-unexpected outcome', () => {
+            const payload: ExecutionTestPayload = {
+                cwd: '/foo/bar',
+                status: 'success',
+                result: {
+                    test1: {
+                        test: 'test1',
+                        outcome: 'passed-unexpected',
+                        message: 'Unexpected pass',
+                        traceback: '',
+                    },
+                },
+                error: '',
+            };
+
+            testItemIndexMock
+                .setup((x) => x.getTestItem('test1', testControllerMock.object))
+                .returns(() => mockTestItem);
+
+            executionHandler.processExecution(
+                payload,
+                runInstanceMock.object,
+                testItemIndexMock.object,
+                testControllerMock.object,
+            );
+
+            runInstanceMock.verify((r) => r.failed(mockTestItem, typemoq.It.isAny()), typemoq.Times.once());
+        });
+    });
+
+    suite('handleTestSuccess', () => {
+        test('should mark test as passed', () => {
+            const payload: ExecutionTestPayload = {
+                cwd: '/foo/bar',
+                status: 'success',
+                result: {
+                    test1: {
+                        test: 'test1',
+                        outcome: 'success',
+                        message: '',
+                        traceback: '',
+                    },
+                },
+                error: '',
+            };
+
+            testItemIndexMock
+                .setup((x) => x.getTestItem('test1', testControllerMock.object))
+                .returns(() => mockTestItem);
+
+            executionHandler.processExecution(
+                payload,
+                runInstanceMock.object,
+                testItemIndexMock.object,
+                testControllerMock.object,
+            );
+
+            runInstanceMock.verify((r) => r.passed(mockTestItem), typemoq.Times.once());
+        });
+
+        test('should handle expected-failure outcome', () => {
+            const payload: ExecutionTestPayload = {
+                cwd: '/foo/bar',
+                status: 'success',
+                result: {
+                    test1: {
+                        test: 'test1',
+                        outcome: 'expected-failure',
+                        message: '',
+                        traceback: '',
+                    },
+                },
+                error: '',
+            };
+
+            testItemIndexMock
+                .setup((x) => x.getTestItem('test1', testControllerMock.object))
+                .returns(() => mockTestItem);
+
+            executionHandler.processExecution(
+                payload,
+                runInstanceMock.object,
+                testItemIndexMock.object,
+                testControllerMock.object,
+            );
+
+            runInstanceMock.verify((r) => r.passed(mockTestItem), typemoq.Times.once());
+        });
+
+        test('should not call passed when test item not found', () => {
+            const payload: ExecutionTestPayload = {
+                cwd: '/foo/bar',
+                status: 'success',
+                result: {
+                    test1: {
+                        test: 'test1',
+                        outcome: 'success',
+                        message: '',
+                        traceback: '',
+                    },
+                },
+                error: '',
+            };
+
+            testItemIndexMock.setup((x) => x.getTestItem('test1', testControllerMock.object)).returns(() => undefined);
+
+            executionHandler.processExecution(
+                payload,
+                runInstanceMock.object,
+                testItemIndexMock.object,
+                testControllerMock.object,
+            );
+
+            runInstanceMock.verify((r) => r.passed(typemoq.It.isAny()), typemoq.Times.never());
+        });
+    });
+
+    suite('handleTestSkipped', () => {
+        test('should mark test as skipped', () => {
+            const payload: ExecutionTestPayload = {
+                cwd: '/foo/bar',
+                status: 'success',
+                result: {
+                    test1: {
+                        test: 'test1',
+                        outcome: 'skipped',
+                        message: 'Test skipped',
+                        traceback: '',
+                    },
+                },
+                error: '',
+            };
+
+            testItemIndexMock
+                .setup((x) => x.getTestItem('test1', testControllerMock.object))
+                .returns(() => mockTestItem);
+
+            executionHandler.processExecution(
+                payload,
+                runInstanceMock.object,
+                testItemIndexMock.object,
+                testControllerMock.object,
+            );
+
+            runInstanceMock.verify((r) => r.skipped(mockTestItem), typemoq.Times.once());
+        });
+    });
+
+    suite('handleSubtestFailure', () => {
+        test('should create child test item for subtest', () => {
+            const payload: ExecutionTestPayload = {
+                cwd: '/foo/bar',
+                status: 'success',
+                result: {
+                    'parentTest (subtest1)': {
+                        test: 'parentTest',
+                        outcome: 'subtest-failure',
+                        message: 'Subtest failed',
+                        traceback: 'traceback',
+                        subtest: 'subtest1',
+                    },
+                },
+                error: '',
+            };
+
+            const mockSubtestItem = createMockTestItem('subtest1', 'Subtest 1');
+
+            testItemIndexMock
+                .setup((x) => x.getTestItem('parentTest', testControllerMock.object))
+                .returns(() => mockParentItem);
+            testItemIndexMock.setup((x) => x.getSubtestStats('parentTest')).returns(() => undefined);
+            testItemIndexMock
+                .setup((x) => x.setSubtestStats('parentTest', typemoq.It.isAny()))
+                .returns(() => undefined);
+            testControllerMock
+                .setup((t) => t.createTestItem(typemoq.It.isAny(), typemoq.It.isAny(), typemoq.It.isAny()))
+                .returns(() => mockSubtestItem);
+
+            executionHandler.processExecution(
+                payload,
+                runInstanceMock.object,
+                testItemIndexMock.object,
+                testControllerMock.object,
+            );
+
+            // Verify stats were set correctly
+            testItemIndexMock.verify(
+                (x) =>
+                    x.setSubtestStats(
+                        'parentTest',
+                        typemoq.It.is((stats) => stats.failed === 1 && stats.passed === 0),
+                    ),
+                typemoq.Times.once(),
+            );
+
+            runInstanceMock.verify((r) => r.started(mockSubtestItem), typemoq.Times.once());
+            runInstanceMock.verify((r) => r.failed(mockSubtestItem, typemoq.It.isAny()), typemoq.Times.once());
+        });
+
+        test('should update stats correctly for multiple subtests', () => {
+            const payload1: ExecutionTestPayload = {
+                cwd: '/foo/bar',
+                status: 'success',
+                result: {
+                    'parentTest (subtest1)': {
+                        test: 'parentTest',
+                        outcome: 'subtest-failure',
+                        message: 'Failed',
+                        traceback: '',
+                        subtest: 'subtest1',
+                    },
+                },
+                error: '',
+            };
+
+            const payload2: ExecutionTestPayload = {
+                cwd: '/foo/bar',
+                status: 'success',
+                result: {
+                    'parentTest (subtest2)': {
+                        test: 'parentTest',
+                        outcome: 'subtest-failure',
+                        message: 'Failed',
+                        traceback: '',
+                        subtest: 'subtest2',
+                    },
+                },
+                error: '',
+            };
+
+            const mockSubtest1 = createMockTestItem('subtest1', 'Subtest 1');
+            const mockSubtest2 = createMockTestItem('subtest2', 'Subtest 2');
+
+            testItemIndexMock
+                .setup((x) => x.getTestItem('parentTest', testControllerMock.object))
+                .returns(() => mockParentItem);
+
+            // First subtest: no existing stats
+            testItemIndexMock.setup((x) => x.getSubtestStats('parentTest')).returns(() => undefined);
+            testItemIndexMock
+                .setup((x) => x.setSubtestStats('parentTest', typemoq.It.isAny()))
+                .returns(() => undefined);
+
+            // Return different items based on call order
+            let callCount = 0;
+            testControllerMock
+                .setup((t) => t.createTestItem(typemoq.It.isAny(), typemoq.It.isAny(), typemoq.It.isAny()))
+                .returns(() => {
+                    callCount++;
+                    return callCount === 1 ? mockSubtest1 : mockSubtest2;
+                });
+
+            executionHandler.processExecution(
+                payload1,
+                runInstanceMock.object,
+                testItemIndexMock.object,
+                testControllerMock.object,
+            );
+
+            // Second subtest: should have existing stats from first
+            testItemIndexMock.reset();
+            testItemIndexMock
+                .setup((x) => x.getTestItem('parentTest', testControllerMock.object))
+                .returns(() => mockParentItem);
+            testItemIndexMock.setup((x) => x.getSubtestStats('parentTest')).returns(() => ({ failed: 1, passed: 0 }));
+
+            executionHandler.processExecution(
+                payload2,
+                runInstanceMock.object,
+                testItemIndexMock.object,
+                testControllerMock.object,
+            );
+
+            // Verify the first subtest set initial stats
+            runInstanceMock.verify((r) => r.started(mockSubtest1), typemoq.Times.once());
+            runInstanceMock.verify((r) => r.started(mockSubtest2), typemoq.Times.once());
+        });
+
+        test('should throw error when parent test item not found', () => {
+            const payload: ExecutionTestPayload = {
+                cwd: '/foo/bar',
+                status: 'success',
+                result: {
+                    'parentTest (subtest1)': {
+                        test: 'parentTest',
+                        outcome: 'subtest-failure',
+                        message: 'Failed',
+                        traceback: '',
+                        subtest: 'subtest1',
+                    },
+                },
+                error: '',
+            };
+
+            testItemIndexMock
+                .setup((x) => x.getTestItem('parentTest', testControllerMock.object))
+                .returns(() => undefined);
+
+            assert.throws(() => {
+                executionHandler.processExecution(
+                    payload,
+                    runInstanceMock.object,
+                    testItemIndexMock.object,
+                    testControllerMock.object,
+                );
+            }, /Parent test item not found/);
+        });
+    });
+
+    suite('handleSubtestSuccess', () => {
+        test('should create passing subtest', () => {
+            const payload: ExecutionTestPayload = {
+                cwd: '/foo/bar',
+                status: 'success',
+                result: {
+                    'parentTest (subtest1)': {
+                        test: 'parentTest',
+                        outcome: 'subtest-success',
+                        message: '',
+                        traceback: '',
+                        subtest: 'subtest1',
+                    },
+                },
+                error: '',
+            };
+
+            const mockSubtestItem = createMockTestItem('subtest1', 'Subtest 1');
+
+            testItemIndexMock
+                .setup((x) => x.getTestItem('parentTest', testControllerMock.object))
+                .returns(() => mockParentItem);
+            testItemIndexMock.setup((x) => x.getSubtestStats('parentTest')).returns(() => undefined);
+            testItemIndexMock
+                .setup((x) => x.setSubtestStats('parentTest', typemoq.It.isAny()))
+                .returns(() => undefined);
+            testControllerMock
+                .setup((t) => t.createTestItem(typemoq.It.isAny(), typemoq.It.isAny(), typemoq.It.isAny()))
+                .returns(() => mockSubtestItem);
+
+            executionHandler.processExecution(
+                payload,
+                runInstanceMock.object,
+                testItemIndexMock.object,
+                testControllerMock.object,
+            );
+
+            // Verify stats were set correctly
+            testItemIndexMock.verify(
+                (x) =>
+                    x.setSubtestStats(
+                        'parentTest',
+                        typemoq.It.is((stats) => stats.passed === 1 && stats.failed === 0),
+                    ),
+                typemoq.Times.once(),
+            );
+
+            runInstanceMock.verify((r) => r.started(mockSubtestItem), typemoq.Times.once());
+            runInstanceMock.verify((r) => r.passed(mockSubtestItem), typemoq.Times.once());
+        });
+
+        test('should handle subtest with special characters in name', () => {
+            const payload: ExecutionTestPayload = {
+                cwd: '/foo/bar',
+                status: 'success',
+                result: {
+                    'parentTest [subtest with spaces and [brackets]]': {
+                        test: 'parentTest',
+                        outcome: 'subtest-success',
+                        message: '',
+                        traceback: '',
+                        subtest: 'subtest with spaces and [brackets]',
+                    },
+                },
+                error: '',
+            };
+
+            const mockSubtestItem = createMockTestItem('[subtest with spaces and [brackets]]', 'Subtest');
+
+            testItemIndexMock
+                .setup((x) => x.getTestItem('parentTest', testControllerMock.object))
+                .returns(() => mockParentItem);
+            testItemIndexMock.setup((x) => x.getSubtestStats('parentTest')).returns(() => undefined);
+            testItemIndexMock
+                .setup((x) => x.setSubtestStats('parentTest', typemoq.It.isAny()))
+                .returns(() => undefined);
+            testControllerMock
+                .setup((t) => t.createTestItem(typemoq.It.isAny(), typemoq.It.isAny(), typemoq.It.isAny()))
+                .returns(() => mockSubtestItem);
+
+            executionHandler.processExecution(
+                payload,
+                runInstanceMock.object,
+                testItemIndexMock.object,
+                testControllerMock.object,
+            );
+
+            runInstanceMock.verify((r) => r.passed(mockSubtestItem), typemoq.Times.once());
+        });
+    });
+
+    suite('Comprehensive Subtest Scenarios', () => {
+        test('should handle mixed passing and failing subtests in sequence', () => {
+            // Simulates unittest with subtests like: test_even with i=0,1,2,3,4,5
+            const mockSubtest0 = createMockTestItem('(i=0)', '(i=0)');
+            const mockSubtest1 = createMockTestItem('(i=1)', '(i=1)');
+            const mockSubtest2 = createMockTestItem('(i=2)', '(i=2)');
+            const mockSubtest3 = createMockTestItem('(i=3)', '(i=3)');
+            const mockSubtest4 = createMockTestItem('(i=4)', '(i=4)');
+            const mockSubtest5 = createMockTestItem('(i=5)', '(i=5)');
+
+            const subtestItems = [mockSubtest0, mockSubtest1, mockSubtest2, mockSubtest3, mockSubtest4, mockSubtest5];
+
+            testItemIndexMock
+                .setup((x) => x.getTestItem('test_even', testControllerMock.object))
+                .returns(() => mockParentItem);
+
+            let subtestCallCount = 0;
+            testControllerMock
+                .setup((t) => t.createTestItem(typemoq.It.isAny(), typemoq.It.isAny(), typemoq.It.isAny()))
+                .returns(() => subtestItems[subtestCallCount++]);
+
+            // First subtest (i=0) - passes
+            testItemIndexMock.setup((x) => x.getSubtestStats('test_even')).returns(() => undefined);
+            testItemIndexMock.setup((x) => x.setSubtestStats('test_even', typemoq.It.isAny())).returns(() => undefined);
+
+            const payload0: ExecutionTestPayload = {
+                cwd: '/foo/bar',
+                status: 'success',
+                result: {
+                    'test_even (i=0)': {
+                        test: 'test_even',
+                        outcome: 'subtest-success',
+                        message: '',
+                        traceback: '',
+                        subtest: '(i=0)',
+                    },
+                },
+                error: '',
+            };
+
+            executionHandler.processExecution(
+                payload0,
+                runInstanceMock.object,
+                testItemIndexMock.object,
+                testControllerMock.object,
+            );
+
+            // Verify first subtest created stats
+            testItemIndexMock.verify(
+                (x) =>
+                    x.setSubtestStats(
+                        'test_even',
+                        typemoq.It.is((stats) => stats.passed === 1 && stats.failed === 0),
+                    ),
+                typemoq.Times.once(),
+            );
+
+            // Second subtest (i=1) - fails
+            testItemIndexMock.reset();
+            testItemIndexMock
+                .setup((x) => x.getTestItem('test_even', testControllerMock.object))
+                .returns(() => mockParentItem);
+            testItemIndexMock.setup((x) => x.getSubtestStats('test_even')).returns(() => ({ passed: 1, failed: 0 }));
+
+            const payload1: ExecutionTestPayload = {
+                cwd: '/foo/bar',
+                status: 'success',
+                result: {
+                    'test_even (i=1)': {
+                        test: 'test_even',
+                        outcome: 'subtest-failure',
+                        message: '1 is not even',
+                        traceback: 'AssertionError',
+                        subtest: '(i=1)',
+                    },
+                },
+                error: '',
+            };
+
+            executionHandler.processExecution(
+                payload1,
+                runInstanceMock.object,
+                testItemIndexMock.object,
+                testControllerMock.object,
+            );
+
+            // Third subtest (i=2) - passes
+            testItemIndexMock.reset();
+            testItemIndexMock
+                .setup((x) => x.getTestItem('test_even', testControllerMock.object))
+                .returns(() => mockParentItem);
+            testItemIndexMock.setup((x) => x.getSubtestStats('test_even')).returns(() => ({ passed: 1, failed: 1 }));
+
+            const payload2: ExecutionTestPayload = {
+                cwd: '/foo/bar',
+                status: 'success',
+                result: {
+                    'test_even (i=2)': {
+                        test: 'test_even',
+                        outcome: 'subtest-success',
+                        message: '',
+                        traceback: '',
+                        subtest: '(i=2)',
+                    },
+                },
+                error: '',
+            };
+
+            executionHandler.processExecution(
+                payload2,
+                runInstanceMock.object,
+                testItemIndexMock.object,
+                testControllerMock.object,
+            );
+
+            // Verify all subtests were started and had outcomes
+            runInstanceMock.verify((r) => r.started(mockSubtest0), typemoq.Times.once());
+            runInstanceMock.verify((r) => r.passed(mockSubtest0), typemoq.Times.once());
+            runInstanceMock.verify((r) => r.started(mockSubtest1), typemoq.Times.once());
+            runInstanceMock.verify((r) => r.failed(mockSubtest1, typemoq.It.isAny()), typemoq.Times.once());
+            runInstanceMock.verify((r) => r.started(mockSubtest2), typemoq.Times.once());
+            runInstanceMock.verify((r) => r.passed(mockSubtest2), typemoq.Times.once());
+        });
+
+        test('should persist stats across multiple processExecution calls', () => {
+            // Test that stats persist in TestItemIndex across multiple processExecution calls
+            const mockSubtest1 = createMockTestItem('subtest1', 'Subtest 1');
+            const mockSubtest2 = createMockTestItem('subtest2', 'Subtest 2');
+
+            testItemIndexMock
+                .setup((x) => x.getTestItem('parentTest', testControllerMock.object))
+                .returns(() => mockParentItem);
+            testItemIndexMock.setup((x) => x.getSubtestStats('parentTest')).returns(() => undefined);
+            testItemIndexMock
+                .setup((x) => x.setSubtestStats('parentTest', typemoq.It.isAny()))
+                .returns(() => undefined);
+
+            let callCount = 0;
+            testControllerMock
+                .setup((t) => t.createTestItem(typemoq.It.isAny(), typemoq.It.isAny(), typemoq.It.isAny()))
+                .returns(() => (callCount++ === 0 ? mockSubtest1 : mockSubtest2));
+
+            const payload1: ExecutionTestPayload = {
+                cwd: '/foo/bar',
+                status: 'success',
+                result: {
+                    'parentTest (subtest1)': {
+                        test: 'parentTest',
+                        outcome: 'subtest-success',
+                        message: '',
+                        traceback: '',
+                        subtest: 'subtest1',
+                    },
+                },
+                error: '',
+            };
+
+            // First call - no existing stats
+            executionHandler.processExecution(
+                payload1,
+                runInstanceMock.object,
+                testItemIndexMock.object,
+                testControllerMock.object,
+            );
+
+            // Simulate stats being stored in TestItemIndex
+            testItemIndexMock.reset();
+            testItemIndexMock
+                .setup((x) => x.getTestItem('parentTest', testControllerMock.object))
+                .returns(() => mockParentItem);
+            testItemIndexMock.setup((x) => x.getSubtestStats('parentTest')).returns(() => ({ passed: 1, failed: 0 }));
+
+            const payload2: ExecutionTestPayload = {
+                cwd: '/foo/bar',
+                status: 'success',
+                result: {
+                    'parentTest (subtest2)': {
+                        test: 'parentTest',
+                        outcome: 'subtest-failure',
+                        message: 'Failed',
+                        traceback: '',
+                        subtest: 'subtest2',
+                    },
+                },
+                error: '',
+            };
+
+            // Second call - existing stats should be retrieved and updated
+            executionHandler.processExecution(
+                payload2,
+                runInstanceMock.object,
+                testItemIndexMock.object,
+                testControllerMock.object,
+            );
+
+            // Verify getSubtestStats was called to retrieve existing stats
+            testItemIndexMock.verify((x) => x.getSubtestStats('parentTest'), typemoq.Times.once());
+
+            // Verify both subtests were processed
+            runInstanceMock.verify((r) => r.passed(mockSubtest1), typemoq.Times.once());
+            runInstanceMock.verify((r) => r.failed(mockSubtest2, typemoq.It.isAny()), typemoq.Times.once());
+        });
+
+        test('should clear children only on first subtest when no existing stats', () => {
+            // When first subtest arrives, children should be cleared
+            // Subsequent subtests should NOT clear children
+            const mockSubtest1 = createMockTestItem('subtest1', 'Subtest 1');
+
+            testItemIndexMock
+                .setup((x) => x.getTestItem('parentTest', testControllerMock.object))
+                .returns(() => mockParentItem);
+            testItemIndexMock.setup((x) => x.getSubtestStats('parentTest')).returns(() => undefined);
+            testItemIndexMock
+                .setup((x) => x.setSubtestStats('parentTest', typemoq.It.isAny()))
+                .returns(() => undefined);
+            testControllerMock
+                .setup((t) => t.createTestItem(typemoq.It.isAny(), typemoq.It.isAny(), typemoq.It.isAny()))
+                .returns(() => mockSubtest1);
+
+            const payload: ExecutionTestPayload = {
+                cwd: '/foo/bar',
+                status: 'success',
+                result: {
+                    'parentTest (subtest1)': {
+                        test: 'parentTest',
+                        outcome: 'subtest-success',
+                        message: '',
+                        traceback: '',
+                        subtest: 'subtest1',
+                    },
+                },
+                error: '',
+            };
+
+            executionHandler.processExecution(
+                payload,
+                runInstanceMock.object,
+                testItemIndexMock.object,
+                testControllerMock.object,
+            );
+
+            // Verify setSubtestStats was called (which happens when creating new stats)
+            testItemIndexMock.verify((x) => x.setSubtestStats('parentTest', typemoq.It.isAny()), typemoq.Times.once());
+        });
+    });
+});
+
+function createMockTestItem(id: string, label: string): TestItem {
+    const range = new Range(0, 0, 0, 0);
+    const mockChildren = typemoq.Mock.ofType<TestItemCollection>();
+    mockChildren.setup((x) => x.add(typemoq.It.isAny())).returns(() => undefined);
+
+    const mockTestItem = ({
+        id,
+        label,
+        canResolveChildren: false,
+        tags: [],
+        children: mockChildren.object,
+        range,
+        uri: Uri.file('/foo/bar/test.py'),
+        parent: undefined,
+    } as unknown) as TestItem;
+
+    return mockTestItem;
+}
diff --git a/src/test/testing/testController/common/testItemIndex.unit.test.ts b/src/test/testing/testController/common/testItemIndex.unit.test.ts
new file mode 100644
index 000000000000..6712d90ff667
--- /dev/null
+++ b/src/test/testing/testController/common/testItemIndex.unit.test.ts
@@ -0,0 +1,359 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+import { TestController, TestItem, Uri, Range, TestItemCollection } from 'vscode';
+import * as typemoq from 'typemoq';
+import * as assert from 'assert';
+import * as sinon from 'sinon';
+import { TestItemIndex } from '../../../../client/testing/testController/common/testItemIndex';
+
+suite('TestItemIndex', () => {
+    let testItemIndex: TestItemIndex;
+    let testControllerMock: typemoq.IMock<TestController>;
+    let mockTestItem1: TestItem;
+    let mockTestItem2: TestItem;
+    let mockParentItem: TestItem;
+
+    setup(() => {
+        testItemIndex = new TestItemIndex();
+        testControllerMock = typemoq.Mock.ofType<TestController>();
+
+        // Create mock test items
+        mockTestItem1 = createMockTestItem('test1', 'Test 1');
+        mockTestItem2 = createMockTestItem('test2', 'Test 2');
+        mockParentItem = createMockTestItem('parent', 'Parent');
+    });
+
+    teardown(() => {
+        sinon.restore();
+    });
+
+    suite('registerTestItem', () => {
+        test('should store all three mappings correctly', () => {
+            const runId = 'test_file.py::test_example';
+            const vsId = 'test_file.py::test_example';
+
+            testItemIndex.registerTestItem(runId, vsId, mockTestItem1);
+
+            assert.strictEqual(testItemIndex.runIdToTestItemMap.get(runId), mockTestItem1);
+            assert.strictEqual(testItemIndex.runIdToVSidMap.get(runId), vsId);
+            assert.strictEqual(testItemIndex.vsIdToRunIdMap.get(vsId), runId);
+        });
+
+        test('should overwrite existing mappings', () => {
+            const runId = 'test_file.py::test_example';
+            const vsId = 'test_file.py::test_example';
+
+            testItemIndex.registerTestItem(runId, vsId, mockTestItem1);
+            testItemIndex.registerTestItem(runId, vsId, mockTestItem2);
+
+            assert.strictEqual(testItemIndex.runIdToTestItemMap.get(runId), mockTestItem2);
+        });
+
+        test('should handle different runId and vsId', () => {
+            const runId = 'test_file.py::TestClass::test_method';
+            const vsId = 'different_id';
+
+            testItemIndex.registerTestItem(runId, vsId, mockTestItem1);
+
+            assert.strictEqual(testItemIndex.runIdToVSidMap.get(runId), vsId);
+            assert.strictEqual(testItemIndex.vsIdToRunIdMap.get(vsId), runId);
+        });
+    });
+
+    suite('getTestItem', () => {
+        test('should return item on direct lookup when valid', () => {
+            const runId = 'test_file.py::test_example';
+            const vsId = 'test_file.py::test_example';
+
+            // Register the item
+            testItemIndex.registerTestItem(runId, vsId, mockTestItem1);
+
+            // Mock the validation to return true
+            const isValidStub = sinon.stub(testItemIndex, 'isTestItemValid').returns(true);
+
+            const result = testItemIndex.getTestItem(runId, testControllerMock.object);
+
+            assert.strictEqual(result, mockTestItem1);
+            assert.ok(isValidStub.calledOnce);
+        });
+
+        test('should remove stale item and try vsId fallback', () => {
+            const runId = 'test_file.py::test_example';
+            const vsId = 'test_file.py::test_example';
+
+            testItemIndex.registerTestItem(runId, vsId, mockTestItem1);
+
+            // Mock validation to fail on first call (stale item)
+            const isValidStub = sinon.stub(testItemIndex, 'isTestItemValid').returns(false);
+
+            // Setup controller to not find the item
+            const testItemCollectionMock = typemoq.Mock.ofType<TestItemCollection>();
+            testItemCollectionMock.setup((x) => x.forEach(typemoq.It.isAny())).returns(() => undefined);
+            testControllerMock.setup((t) => t.items).returns(() => testItemCollectionMock.object);
+
+            const result = testItemIndex.getTestItem(runId, testControllerMock.object);
+
+            // Should have removed the stale item
+            assert.strictEqual(testItemIndex.runIdToTestItemMap.get(runId), undefined);
+            assert.strictEqual(result, undefined);
+            assert.ok(isValidStub.calledOnce);
+        });
+
+        test('should perform vsId search when direct lookup is stale', () => {
+            const runId = 'test_file.py::test_example';
+            const vsId = 'test_file.py::test_example';
+
+            // Create test item with correct ID
+            const searchableTestItem = createMockTestItem(vsId, 'Test Example');
+
+            testItemIndex.registerTestItem(runId, vsId, searchableTestItem);
+
+            // First validation fails (stale), need to search by vsId
+            sinon.stub(testItemIndex, 'isTestItemValid').returns(false);
+
+            // Setup controller to find item by vsId
+            const testItemCollectionMock = typemoq.Mock.ofType<TestItemCollection>();
+            testItemCollectionMock
+                .setup((x) => x.forEach(typemoq.It.isAny()))
+                .callback((callback) => {
+                    callback(searchableTestItem);
+                })
+                .returns(() => undefined);
+            testControllerMock.setup((t) => t.items).returns(() => testItemCollectionMock.object);
+
+            const result = testItemIndex.getTestItem(runId, testControllerMock.object);
+
+            // Should recache the found item
+            assert.strictEqual(testItemIndex.runIdToTestItemMap.get(runId), searchableTestItem);
+            assert.strictEqual(result, searchableTestItem);
+        });
+
+        test('should return undefined if not found anywhere', () => {
+            const runId = 'nonexistent';
+
+            const testItemCollectionMock = typemoq.Mock.ofType<TestItemCollection>();
+            testItemCollectionMock.setup((x) => x.forEach(typemoq.It.isAny())).returns(() => undefined);
+            testControllerMock.setup((t) => t.items).returns(() => testItemCollectionMock.object);
+
+            const result = testItemIndex.getTestItem(runId, testControllerMock.object);
+
+            assert.strictEqual(result, undefined);
+        });
+    });
+
+    suite('getRunId and getVSId', () => {
+        test('getRunId should convert VS Code ID to Python run ID', () => {
+            const runId = 'test_file.py::test_example';
+            const vsId = 'vscode_id';
+
+            testItemIndex.registerTestItem(runId, vsId, mockTestItem1);
+
+            assert.strictEqual(testItemIndex.getRunId(vsId), runId);
+        });
+
+        test('getRunId should return undefined for unknown vsId', () => {
+            assert.strictEqual(testItemIndex.getRunId('unknown'), undefined);
+        });
+
+        test('getVSId should convert Python run ID to VS Code ID', () => {
+            const runId = 'test_file.py::test_example';
+            const vsId = 'vscode_id';
+
+            testItemIndex.registerTestItem(runId, vsId, mockTestItem1);
+
+            assert.strictEqual(testItemIndex.getVSId(runId), vsId);
+        });
+
+        test('getVSId should return undefined for unknown runId', () => {
+            assert.strictEqual(testItemIndex.getVSId('unknown'), undefined);
+        });
+    });
+
+    suite('clear', () => {
+        test('should remove all mappings', () => {
+            testItemIndex.registerTestItem('runId1', 'vsId1', mockTestItem1);
+            testItemIndex.registerTestItem('runId2', 'vsId2', mockTestItem2);
+
+            assert.strictEqual(testItemIndex.runIdToTestItemMap.size, 2);
+            assert.strictEqual(testItemIndex.runIdToVSidMap.size, 2);
+            assert.strictEqual(testItemIndex.vsIdToRunIdMap.size, 2);
+
+            testItemIndex.clear();
+
+            assert.strictEqual(testItemIndex.runIdToTestItemMap.size, 0);
+            assert.strictEqual(testItemIndex.runIdToVSidMap.size, 0);
+            assert.strictEqual(testItemIndex.vsIdToRunIdMap.size, 0);
+        });
+
+        test('should handle clearing empty index', () => {
+            testItemIndex.clear();
+
+            assert.strictEqual(testItemIndex.runIdToTestItemMap.size, 0);
+            assert.strictEqual(testItemIndex.runIdToVSidMap.size, 0);
+            assert.strictEqual(testItemIndex.vsIdToRunIdMap.size, 0);
+        });
+    });
+
+    suite('isTestItemValid', () => {
+        test('should return true for item with valid parent chain leading to controller', () => {
+            const childItem = createMockTestItem('child', 'Child');
+            (childItem as any).parent = mockParentItem;
+
+            const testItemCollectionMock = typemoq.Mock.ofType<TestItemCollection>();
+            testItemCollectionMock.setup((x) => x.get(mockParentItem.id)).returns(() => mockParentItem);
+            testControllerMock.setup((t) => t.items).returns(() => testItemCollectionMock.object);
+
+            const result = testItemIndex.isTestItemValid(childItem, testControllerMock.object);
+
+            assert.strictEqual(result, true);
+        });
+
+        test('should return false for orphaned item', () => {
+            const orphanedItem = createMockTestItem('orphaned', 'Orphaned');
+            (orphanedItem as any).parent = mockParentItem;
+
+            const testItemCollectionMock = typemoq.Mock.ofType<TestItemCollection>();
+            testItemCollectionMock.setup((x) => x.get(typemoq.It.isAny())).returns(() => undefined);
+            testControllerMock.setup((t) => t.items).returns(() => testItemCollectionMock.object);
+
+            const result = testItemIndex.isTestItemValid(orphanedItem, testControllerMock.object);
+
+            assert.strictEqual(result, false);
+        });
+
+        test('should return true for root item in controller', () => {
+            const testItemCollectionMock = typemoq.Mock.ofType<TestItemCollection>();
+            testItemCollectionMock.setup((x) => x.get(mockTestItem1.id)).returns(() => mockTestItem1);
+            testControllerMock.setup((t) => t.items).returns(() => testItemCollectionMock.object);
+
+            const result = testItemIndex.isTestItemValid(mockTestItem1, testControllerMock.object);
+
+            assert.strictEqual(result, true);
+        });
+
+        test('should return false for item not in controller and no parent', () => {
+            const testItemCollectionMock = typemoq.Mock.ofType<TestItemCollection>();
+            testItemCollectionMock.setup((x) => x.get(typemoq.It.isAny())).returns(() => undefined);
+            testControllerMock.setup((t) => t.items).returns(() => testItemCollectionMock.object);
+
+            const result = testItemIndex.isTestItemValid(mockTestItem1, testControllerMock.object);
+
+            assert.strictEqual(result, false);
+        });
+    });
+
+    suite('cleanupStaleReferences', () => {
+        test('should remove items not in controller', () => {
+            const runId1 = 'test1';
+            const runId2 = 'test2';
+            const vsId1 = 'vs1';
+            const vsId2 = 'vs2';
+
+            testItemIndex.registerTestItem(runId1, vsId1, mockTestItem1);
+            testItemIndex.registerTestItem(runId2, vsId2, mockTestItem2);
+
+            // Mock validation: first item invalid, second valid
+            const isValidStub = sinon.stub(testItemIndex, 'isTestItemValid');
+            isValidStub.onFirstCall().returns(false); // mockTestItem1 is invalid
+            isValidStub.onSecondCall().returns(true); // mockTestItem2 is valid
+
+            testItemIndex.cleanupStaleReferences(testControllerMock.object);
+
+            // First item should be removed
+            assert.strictEqual(testItemIndex.runIdToTestItemMap.get(runId1), undefined);
+            assert.strictEqual(testItemIndex.runIdToVSidMap.get(runId1), undefined);
+            assert.strictEqual(testItemIndex.vsIdToRunIdMap.get(vsId1), undefined);
+
+            // Second item should remain
+            assert.strictEqual(testItemIndex.runIdToTestItemMap.get(runId2), mockTestItem2);
+            assert.strictEqual(testItemIndex.runIdToVSidMap.get(runId2), vsId2);
+            assert.strictEqual(testItemIndex.vsIdToRunIdMap.get(vsId2), runId2);
+        });
+
+        test('should keep all valid items', () => {
+            const runId1 = 'test1';
+            const vsId1 = 'vs1';
+
+            testItemIndex.registerTestItem(runId1, vsId1, mockTestItem1);
+
+            sinon.stub(testItemIndex, 'isTestItemValid').returns(true);
+
+            testItemIndex.cleanupStaleReferences(testControllerMock.object);
+
+            // Item should still be there
+            assert.strictEqual(testItemIndex.runIdToTestItemMap.get(runId1), mockTestItem1);
+            assert.strictEqual(testItemIndex.runIdToVSidMap.get(runId1), vsId1);
+            assert.strictEqual(testItemIndex.vsIdToRunIdMap.get(vsId1), runId1);
+        });
+
+        test('should handle empty index', () => {
+            testItemIndex.cleanupStaleReferences(testControllerMock.object);
+
+            assert.strictEqual(testItemIndex.runIdToTestItemMap.size, 0);
+        });
+
+        test('should remove all items when all are invalid', () => {
+            testItemIndex.registerTestItem('test1', 'vs1', mockTestItem1);
+            testItemIndex.registerTestItem('test2', 'vs2', mockTestItem2);
+
+            sinon.stub(testItemIndex, 'isTestItemValid').returns(false);
+
+            testItemIndex.cleanupStaleReferences(testControllerMock.object);
+
+            assert.strictEqual(testItemIndex.runIdToTestItemMap.size, 0);
+            assert.strictEqual(testItemIndex.runIdToVSidMap.size, 0);
+            assert.strictEqual(testItemIndex.vsIdToRunIdMap.size, 0);
+        });
+    });
+
+    suite('Backward compatibility getters', () => {
+        test('runIdToTestItemMap should return the internal map', () => {
+            const runId = 'test1';
+            testItemIndex.registerTestItem(runId, 'vs1', mockTestItem1);
+
+            const map = testItemIndex.runIdToTestItemMap;
+
+            assert.strictEqual(map.get(runId), mockTestItem1);
+        });
+
+        test('runIdToVSidMap should return the internal map', () => {
+            const runId = 'test1';
+            const vsId = 'vs1';
+            testItemIndex.registerTestItem(runId, vsId, mockTestItem1);
+
+            const map = testItemIndex.runIdToVSidMap;
+
+            assert.strictEqual(map.get(runId), vsId);
+        });
+
+        test('vsIdToRunIdMap should return the internal map', () => {
+            const runId = 'test1';
+            const vsId = 'vs1';
+            testItemIndex.registerTestItem(runId, vsId, mockTestItem1);
+
+            const map = testItemIndex.vsIdToRunIdMap;
+
+            assert.strictEqual(map.get(vsId), runId);
+        });
+    });
+});
+
+function createMockTestItem(id: string, label: string): TestItem {
+    const range = new Range(0, 0, 0, 0);
+    const mockChildren = typemoq.Mock.ofType<TestItemCollection>();
+    mockChildren.setup((x) => x.add(typemoq.It.isAny())).returns(() => undefined);
+
+    const mockTestItem = ({
+        id,
+        label,
+        canResolveChildren: false,
+        tags: [],
+        children: mockChildren.object,
+        range,
+        uri: Uri.file('/foo/bar'),
+        parent: undefined,
+    } as unknown) as TestItem;
+
+    return mockTestItem;
+}
diff --git a/src/test/testing/testController/resultResolver.unit.test.ts b/src/test/testing/testController/resultResolver.unit.test.ts
index 05d2ee1dd0f3..e4b350a20750 100644
--- a/src/test/testing/testController/resultResolver.unit.test.ts
+++ b/src/test/testing/testController/resultResolver.unit.test.ts
@@ -93,12 +93,13 @@ suite('Result Resolver tests', () => {
             // assert the stub functions were called with the correct parameters
 
             // header of populateTestTree is (testController: TestController, testTreeData: DiscoveredTestNode, testRoot: TestItem | undefined, resultResolver: ITestResultResolver, token?: CancellationToken)
+            // After refactor, an inline object with testItemIndex maps is passed instead of resultResolver
             sinon.assert.calledWithMatch(
                 populateTestTreeStub,
                 testController, // testController
                 tests, // testTreeData
                 undefined, // testRoot
-                resultResolver, // resultResolver
+                sinon.match.has('runIdToTestItem'), // inline object with maps
                 cancelationToken, // token
             );
         });
@@ -182,12 +183,13 @@ suite('Result Resolver tests', () => {
             sinon.assert.calledWithMatch(createErrorTestItemStub, sinon.match.any, sinon.match.any);
 
             // also calls populateTestTree with the discovery test results
+            // After refactor, an inline object with testItemIndex maps is passed instead of resultResolver
             sinon.assert.calledWithMatch(
                 populateTestTreeStub,
                 testController, // testController
                 tests, // testTreeData
                 undefined, // testRoot
-                resultResolver, // resultResolver
+                sinon.match.has('runIdToTestItem'), // inline object with maps
                 cancelationToken, // token
             );
         });
@@ -327,6 +329,34 @@ suite('Result Resolver tests', () => {
             sinon.stub(testItemUtilities, 'clearAllChildren').callsFake(() => undefined);
             testProvider = 'unittest';
             workspaceUri = Uri.file('/foo/bar');
+
+            // Create parent test item with correct ID
+            const mockParentItem = createMockTestItem('parentTest');
+
+            // Update testControllerMock to include parent item in its collection
+            const mockTestItems: [string, TestItem][] = [
+                ['1', mockTestItem1],
+                ['2', mockTestItem2],
+                ['parentTest', mockParentItem],
+            ];
+            const iterableMock = mockTestItems[Symbol.iterator]();
+
+            const testItemCollectionMock = typemoq.Mock.ofType<TestItemCollection>();
+            testItemCollectionMock
+                .setup((x) => x.forEach(typemoq.It.isAny()))
+                .callback((callback) => {
+                    let result = iterableMock.next();
+                    while (!result.done) {
+                        callback(result.value[1]);
+                        result = iterableMock.next();
+                    }
+                })
+                .returns(() => mockTestItem1);
+            testItemCollectionMock.setup((x) => x.get('parentTest')).returns(() => mockParentItem);
+
+            testControllerMock.reset();
+            testControllerMock.setup((t) => t.items).returns(() => testItemCollectionMock.object);
+
             resultResolver = new ResultResolver.PythonResultResolver(
                 testControllerMock.object,
                 testProvider,
@@ -334,13 +364,16 @@ suite('Result Resolver tests', () => {
             );
             const subtestName = 'parentTest [subTest with spaces and [brackets]]';
             const mockSubtestItem = createMockTestItem(subtestName);
+
             // add a mock test item to the map of known VSCode ids to run ids
             resultResolver.runIdToVSid.set('mockTestItem2', 'mockTestItem2');
             // creates a mock test item with a space which will be used to split the runId
             resultResolver.runIdToVSid.set(subtestName, subtestName);
+            // Register parent test in testItemIndex so it can be found by getTestItem
+            resultResolver.runIdToVSid.set('parentTest', 'parentTest');
 
             // add this mock test to the map of known test items
-            resultResolver.runIdToTestItem.set('parentTest', mockTestItem2);
+            resultResolver.runIdToTestItem.set('parentTest', mockParentItem);
             resultResolver.runIdToTestItem.set(subtestName, mockSubtestItem);
 
             let generatedId: string | undefined;
@@ -563,15 +596,15 @@ suite('Result Resolver tests', () => {
 
 function createMockTestItem(id: string): TestItem {
     const range = new Range(0, 0, 0, 0);
+    const mockChildren = typemoq.Mock.ofType<TestItemCollection>();
+    mockChildren.setup((x) => x.add(typemoq.It.isAny())).returns(() => undefined);
+    mockChildren.setup((x) => x.forEach(typemoq.It.isAny())).returns(() => undefined);
+
     const mockTestItem = ({
         id,
         canResolveChildren: false,
         tags: [],
-        children: {
-            add: () => {
-                // empty
-            },
-        },
+        children: mockChildren.object,
         range,
         uri: Uri.file('/foo/bar'),
     } as unknown) as TestItem;
diff --git a/src/test/vscode-mock.ts b/src/test/vscode-mock.ts
index 0605b1718166..3e2816afbbde 100644
--- a/src/test/vscode-mock.ts
+++ b/src/test/vscode-mock.ts
@@ -134,3 +134,17 @@ mockedVSCode.LogLevel = vscodeMocks.LogLevel;
 (mockedVSCode as any).CancellationError = vscodeMocks.vscMockExtHostedTypes.CancellationError;
 (mockedVSCode as any).LSPCancellationError = vscodeMocks.vscMockExtHostedTypes.LSPCancellationError;
 mockedVSCode.TestRunProfileKind = vscodeMocks.TestRunProfileKind;
+(mockedVSCode as any).TestCoverageCount = class TestCoverageCount {
+    constructor(public covered: number, public total: number) {}
+};
+(mockedVSCode as any).FileCoverage = class FileCoverage {
+    constructor(
+        public uri: any,
+        public statementCoverage: any,
+        public branchCoverage?: any,
+        public declarationCoverage?: any,
+    ) {}
+};
+(mockedVSCode as any).StatementCoverage = class StatementCoverage {
+    constructor(public executed: number | boolean, public location: any, public branches?: any) {}
+};

From 38e1cc667f97c47bf2089cc5f74bc763e835702b Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Fri, 12 Dec 2025 13:02:06 -0800
Subject: [PATCH 113/178] perf(pytest): cache path resolution to reduce
 discovery time for large test suites (#25655)

fixes: https://github.com/microsoft/vscode-python/issues/25348

Test discovery for large suites (~150k tests) shows 10x slowdown vs
native pytest due to redundant path operations in `pytest_sessionfinish`
hook. Profiling indicates repeated `pathlib.Path.cwd()` calls,
`os.fspath()` conversions, and exception-based dictionary lookups
dominate execution time.

## Changes

**Caching infrastructure**
- Module-level caches: `_path_cache` (node paths by id),
`_path_to_str_cache` (string conversions), `_CACHED_CWD` (working
directory)
- `cached_fsdecode()`: memoized `os.fspath()` wrapper used for
dictionary keys throughout tree building

**Modified `get_node_path()`**
- Object id-based cache lookup before path resolution
- Lazy initialization of cached cwd, eliminates 150k+ redundant syscalls
- Store result before return

**Control flow optimization**
- Replace `try/except KeyError` with `dict.get()` in 5 hotpath
locations: `process_parameterized_test()`, `build_test_tree()`,
`build_nested_folders()`
- 3-5x faster for cache-hit case

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
---
 .../tests/pytestadapter/test_utils.py         | 24 ++++-
 python_files/vscode_pytest/__init__.py        | 93 +++++++++++++------
 2 files changed, 87 insertions(+), 30 deletions(-)

diff --git a/python_files/tests/pytestadapter/test_utils.py b/python_files/tests/pytestadapter/test_utils.py
index ef0ed2daf4e9..70201db7d097 100644
--- a/python_files/tests/pytestadapter/test_utils.py
+++ b/python_files/tests/pytestadapter/test_utils.py
@@ -12,7 +12,7 @@
 
 script_dir = pathlib.Path(__file__).parent.parent.parent
 sys.path.append(os.fspath(script_dir))
-from vscode_pytest import has_symlink_parent  # noqa: E402
+from vscode_pytest import cached_fsdecode, has_symlink_parent  # noqa: E402
 
 
 def test_has_symlink_parent_with_symlink():
@@ -33,3 +33,25 @@ def test_has_symlink_parent_without_symlink():
     folder_path = TEST_DATA_PATH / "unittest_folder" / "test_add.py"
     # Check that has_symlink_parent correctly identifies that there are no symbolic links
     assert not has_symlink_parent(folder_path)
+
+
+def test_cached_fsdecode():
+    """Test that cached_fsdecode correctly caches path-to-string conversions."""
+    # Create a test path
+    test_path = TEST_DATA_PATH / "simple_pytest.py"
+
+    # First call should compute and cache
+    result1 = cached_fsdecode(test_path)
+    assert result1 == os.fspath(test_path)
+    assert isinstance(result1, str)
+
+    # Second call should return cached value (same object)
+    result2 = cached_fsdecode(test_path)
+    assert result2 == result1
+    assert result2 is result1  # Should be the same object from cache
+
+    # Different path should be cached independently
+    test_path2 = TEST_DATA_PATH / "parametrize_tests.py"
+    result3 = cached_fsdecode(test_path2)
+    assert result3 == os.fspath(test_path2)
+    assert result3 != result1
diff --git a/python_files/vscode_pytest/__init__.py b/python_files/vscode_pytest/__init__.py
index ba8b270403ac..79365ab95db2 100644
--- a/python_files/vscode_pytest/__init__.py
+++ b/python_files/vscode_pytest/__init__.py
@@ -80,6 +80,11 @@ def __init__(self, message):
 SYMLINK_PATH = None
 INCLUDE_BRANCHES = False
 
+# Performance optimization caches for path resolution
+_path_cache: dict[int, pathlib.Path] = {}  # Cache node paths by object id
+_path_to_str_cache: dict[pathlib.Path, str] = {}  # Cache path-to-string conversions
+_CACHED_CWD: pathlib.Path | None = None
+
 
 def pytest_load_initial_conftests(early_config, parser, args):  # noqa: ARG001
     has_pytest_cov = early_config.pluginmanager.hasplugin("pytest_cov")
@@ -619,11 +624,10 @@ def process_parameterized_test(
 
     class_and_method = second_split[1] + "::"  # This has "::" separator at both ends
     # construct the parent id, so it is absolute path :: any class and method :: parent_part
-    parent_id = os.fspath(get_node_path(test_case)) + class_and_method + parent_part
+    parent_id = cached_fsdecode(get_node_path(test_case)) + class_and_method + parent_part
 
     try:
         function_name = test_case.originalname  # type: ignore
-        function_test_node = function_nodes_dict[parent_id]
     except AttributeError:  # actual error has occurred
         ERRORS.append(
             f"unable to find original name for {test_case.name} with parameterization detected."
@@ -631,8 +635,10 @@ def process_parameterized_test(
         raise VSCodePytestError(
             "Unable to find original name for parameterized test case"
         ) from None
-    except KeyError:
-        function_test_node: TestNode = create_parameterized_function_node(
+
+    function_test_node = function_nodes_dict.get(parent_id)
+    if function_test_node is None:
+        function_test_node = create_parameterized_function_node(
             function_name, get_node_path(test_case), parent_id
         )
         function_nodes_dict[parent_id] = function_test_node
@@ -644,11 +650,11 @@ def process_parameterized_test(
     if isinstance(test_case.parent, pytest.File):
         # calculate the parent path of the test case
         parent_path = get_node_path(test_case.parent)
-        try:
-            parent_test_case = file_nodes_dict[os.fspath(parent_path)]
-        except KeyError:
+        parent_path_key = cached_fsdecode(parent_path)
+        parent_test_case = file_nodes_dict.get(parent_path_key)
+        if parent_test_case is None:
             parent_test_case = create_file_node(parent_path)
-            file_nodes_dict[os.fspath(parent_path)] = parent_test_case
+            file_nodes_dict[parent_path_key] = parent_test_case
         if function_test_node not in parent_test_case["children"]:
             parent_test_case["children"].append(function_test_node)
 
@@ -693,9 +699,8 @@ def build_test_tree(session: pytest.Session) -> TestNode:
                 USES_PYTEST_DESCRIBE and isinstance(case_iter, DescribeBlock)
             ):
                 # While the given node is a class, create a class and nest the previous node as a child.
-                try:
-                    test_class_node = class_nodes_dict[case_iter.nodeid]
-                except KeyError:
+                test_class_node = class_nodes_dict.get(case_iter.nodeid)
+                if test_class_node is None:
                     test_class_node = create_class_node(case_iter)
                     class_nodes_dict[case_iter.nodeid] = test_class_node
                 # Check if the class already has the child node. This will occur if the test is parameterized.
@@ -712,11 +717,11 @@ def build_test_tree(session: pytest.Session) -> TestNode:
                 break
             parent_path = get_node_path(parent_module)
             # Create a file node that has the last class as a child.
-            try:
-                test_file_node: TestNode = file_nodes_dict[os.fspath(parent_path)]
-            except KeyError:
+            parent_path_key = cached_fsdecode(parent_path)
+            test_file_node = file_nodes_dict.get(parent_path_key)
+            if test_file_node is None:
                 test_file_node = create_file_node(parent_path)
-                file_nodes_dict[os.fspath(parent_path)] = test_file_node
+                file_nodes_dict[parent_path_key] = test_file_node
             # Check if the class is already a child of the file node.
             if test_class_node is not None and test_class_node not in test_file_node["children"]:
                 test_file_node["children"].append(test_class_node)
@@ -731,11 +736,11 @@ def build_test_tree(session: pytest.Session) -> TestNode:
                     test_case.parent,
                 )
             )
-            try:
-                parent_test_case = file_nodes_dict[os.fspath(parent_path)]
-            except KeyError:
+            parent_path_key = cached_fsdecode(parent_path)
+            parent_test_case = file_nodes_dict.get(parent_path_key)
+            if parent_test_case is None:
                 parent_test_case = create_file_node(parent_path)
-                file_nodes_dict[os.fspath(parent_path)] = parent_test_case
+                file_nodes_dict[parent_path_key] = parent_test_case
             parent_test_case["children"].append(test_node)
     # Process all files and construct them into nested folders
     session_children_dict = construct_nested_folders(
@@ -776,11 +781,11 @@ def build_nested_folders(
     max_iter = 100
     while iterator_path != session_node_path:
         curr_folder_name = iterator_path.name
-        try:
-            curr_folder_node: TestNode = created_files_folders_dict[os.fspath(iterator_path)]
-        except KeyError:
-            curr_folder_node: TestNode = create_folder_node(curr_folder_name, iterator_path)
-            created_files_folders_dict[os.fspath(iterator_path)] = curr_folder_node
+        iterator_path_key = cached_fsdecode(iterator_path)
+        curr_folder_node = created_files_folders_dict.get(iterator_path_key)
+        if curr_folder_node is None:
+            curr_folder_node = create_folder_node(curr_folder_name, iterator_path)
+            created_files_folders_dict[iterator_path_key] = curr_folder_node
         if prev_folder_node not in curr_folder_node["children"]:
             curr_folder_node["children"].append(prev_folder_node)
         iterator_path = iterator_path.parent
@@ -942,6 +947,23 @@ class CoveragePayloadDict(Dict):
     error: str | None  # Currently unused need to check
 
 
+def cached_fsdecode(path: pathlib.Path) -> str:
+    """Convert path to string with caching for performance.
+
+    This function caches path-to-string conversions to avoid redundant
+    os.fsdecode() calls during test tree building.
+
+    Parameters:
+        path: The pathlib.Path object to convert to string.
+
+    Returns:
+        str: The string representation of the path.
+    """
+    if path not in _path_to_str_cache:
+        _path_to_str_cache[path] = os.fspath(path)
+    return _path_to_str_cache[path]
+
+
 def get_node_path(
     node: pytest.Session
     | pytest.Item
@@ -961,6 +983,10 @@ def get_node_path(
     Returns:
         pathlib.Path: The resolved path for the node.
     """
+    cache_key = id(node)
+    if cache_key in _path_cache:
+        return _path_cache[cache_key]
+
     node_path = getattr(node, "path", None)
     if node_path is None:
         fspath = getattr(node, "fspath", None)
@@ -982,19 +1008,28 @@ def get_node_path(
             common_path = os.path.commonpath([symlink_str, node_path_str])
             if common_path == os.fsdecode(SYMLINK_PATH):
                 # The node path is already relative to the SYMLINK_PATH root therefore return
-                return node_path
+                result = node_path
             else:
                 # If the node path is not a symlink, then we need to calculate the equivalent symlink path
                 # get the relative path between the cwd and the node path (as the node path is not a symlink).
-                rel_path = node_path.relative_to(pathlib.Path.cwd())
+                # Use cached cwd to avoid repeated system calls
+                global _CACHED_CWD
+                if _CACHED_CWD is None:
+                    _CACHED_CWD = pathlib.Path.cwd()
+                rel_path = node_path.relative_to(_CACHED_CWD)
                 # combine the difference between the cwd and the node path with the symlink path
-                return pathlib.Path(SYMLINK_PATH, rel_path)
+                result = pathlib.Path(SYMLINK_PATH, rel_path)
         except Exception as e:
             raise VSCodePytestError(
                 f"Error occurred while calculating symlink equivalent from node path: {e}"
-                f"\n SYMLINK_PATH: {SYMLINK_PATH}, \n node path: {node_path}, \n cwd: {pathlib.Path.cwd()}"
+                f"\n SYMLINK_PATH: {SYMLINK_PATH}, \n node path: {node_path}, \n cwd: {_CACHED_CWD if _CACHED_CWD else pathlib.Path.cwd()}"
             ) from e
-    return node_path
+    else:
+        result = node_path
+
+    # Cache before returning
+    _path_cache[cache_key] = result
+    return result
 
 
 __writer = None

From 215c1684d103ede8a562e13f45300d5e74e7fcd6 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Fri, 12 Dec 2025 14:32:07 -0800
Subject: [PATCH 114/178] Optimize pytest duplicate check from O(n) to O(1)
 using sets (#25658)

switched from list to set for better preformance

was first done by copilot but ported over

related to https://github.com/microsoft/vscode-python/issues/25348 but
about execution instead of discovery

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
---
 python_files/vscode_pytest/__init__.py | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/python_files/vscode_pytest/__init__.py b/python_files/vscode_pytest/__init__.py
index 79365ab95db2..1222a324b232 100644
--- a/python_files/vscode_pytest/__init__.py
+++ b/python_files/vscode_pytest/__init__.py
@@ -75,7 +75,7 @@ def __init__(self, message):
 ERRORS = []
 IS_DISCOVERY = False
 map_id_to_path = {}
-collected_tests_so_far = []
+collected_tests_so_far = set()
 TEST_RUN_PIPE = os.getenv("TEST_RUN_PIPE")
 SYMLINK_PATH = None
 INCLUDE_BRANCHES = False
@@ -175,7 +175,7 @@ def pytest_exception_interact(node, call, report):
             report_value = "failure"
         node_id = get_absolute_test_id(node.nodeid, get_node_path(node))
         if node_id not in collected_tests_so_far:
-            collected_tests_so_far.append(node_id)
+            collected_tests_so_far.add(node_id)
             item_result = create_test_outcome(
                 node_id,
                 report_value,
@@ -300,7 +300,7 @@ def pytest_report_teststatus(report, config):  # noqa: ARG001
         # Calculate the absolute test id and use this as the ID moving forward.
         absolute_node_id = get_absolute_test_id(report.nodeid, node_path)
         if absolute_node_id not in collected_tests_so_far:
-            collected_tests_so_far.append(absolute_node_id)
+            collected_tests_so_far.add(absolute_node_id)
             item_result = create_test_outcome(
                 absolute_node_id,
                 report_value,
@@ -334,7 +334,7 @@ def pytest_runtest_protocol(item, nextitem):  # noqa: ARG001
         report_value = "skipped"
         cwd = pathlib.Path.cwd()
         if absolute_node_id not in collected_tests_so_far:
-            collected_tests_so_far.append(absolute_node_id)
+            collected_tests_so_far.add(absolute_node_id)
             item_result = create_test_outcome(
                 absolute_node_id,
                 report_value,

From 268e3c18e12e4c0f4a3cca94cf422dee59beddc9 Mon Sep 17 00:00:00 2001
From: Anthony Kim <62267334+anthonykim1@users.noreply.github.com>
Date: Sun, 14 Dec 2025 20:47:16 -0800
Subject: [PATCH 115/178] Better log ensureTerminalLegacy  (#25665)

Better logs when we use environment extension when available for
creating terminal.
---
 src/client/envExt/api.legacy.ts | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/src/client/envExt/api.legacy.ts b/src/client/envExt/api.legacy.ts
index d1a9f404d541..6f2e60774033 100644
--- a/src/client/envExt/api.legacy.ts
+++ b/src/client/envExt/api.legacy.ts
@@ -148,5 +148,24 @@ export async function ensureTerminalLegacy(
         const terminal = await api.createTerminal(pythonEnv, fixedOptions);
         return terminal;
     }
+    traceError('ensureTerminalLegacy - Did not return terminal successfully.');
+    traceError(
+        'ensureTerminalLegacy - pythonEnv:',
+        pythonEnv
+            ? `id=${pythonEnv.envId.id}, managerId=${pythonEnv.envId.managerId}, name=${pythonEnv.name}, version=${pythonEnv.version}, executable=${pythonEnv.execInfo.run.executable}`
+            : 'undefined',
+    );
+    traceError(
+        'ensureTerminalLegacy - project:',
+        project ? `name=${project.name}, uri=${project.uri.toString()}` : 'undefined',
+    );
+    traceError(
+        'ensureTerminalLegacy - options:',
+        options
+            ? `name=${options.name}, cwd=${options.cwd?.toString()}, hideFromUser=${options.hideFromUser}`
+            : 'undefined',
+    );
+    traceError('ensureTerminalLegacy - resource:', resource?.toString() || 'undefined');
+
     throw new Error('Invalid arguments to create terminal');
 }

From c7efb6e64cd402cd4ba02ebbe12170a444aee7c9 Mon Sep 17 00:00:00 2001
From: Anthony Kim <62267334+anthonykim1@users.noreply.github.com>
Date: Tue, 16 Dec 2025 09:55:00 -0800
Subject: [PATCH 116/178] Switch to queue based execution for executing Python
 code (#25669)

Resolves:
https://github.com/microsoft/vscode-python-environments/issues/958

Challenge is that sendText would get called when terminal is not ready.
And doing `undefined.show()` is the problem.
Switching to queue based execution for running REPL commands, which
would prevent from us losing the first command as well.
---
 .../common/application/terminalManager.ts     |   3 +
 src/client/common/application/types.ts        |   2 +
 src/client/common/terminal/service.ts         | 102 ++++++++++++++++--
 src/client/common/vscodeApis/windowApis.ts    |   5 +
 .../common/terminals/service.unit.test.ts     |  69 ++++++++++--
 src/test/smoke/smartSend.smoke.test.ts        |   7 +-
 6 files changed, 165 insertions(+), 23 deletions(-)

diff --git a/src/client/common/application/terminalManager.ts b/src/client/common/application/terminalManager.ts
index 9d0536e85243..dc2603e84a56 100644
--- a/src/client/common/application/terminalManager.ts
+++ b/src/client/common/application/terminalManager.ts
@@ -38,6 +38,9 @@ export class TerminalManager implements ITerminalManager {
     public onDidEndTerminalShellExecution(handler: (e: TerminalShellExecutionEndEvent) => void): Disposable {
         return window.onDidEndTerminalShellExecution(handler);
     }
+    public onDidChangeTerminalState(handler: (e: Terminal) => void): Disposable {
+        return window.onDidChangeTerminalState(handler);
+    }
 }
 
 /**
diff --git a/src/client/common/application/types.ts b/src/client/common/application/types.ts
index 65a8833a691c..34a95fb604f0 100644
--- a/src/client/common/application/types.ts
+++ b/src/client/common/application/types.ts
@@ -939,6 +939,8 @@ export interface ITerminalManager {
     onDidChangeTerminalShellIntegration(handler: (e: TerminalShellIntegrationChangeEvent) => void): Disposable;
 
     onDidEndTerminalShellExecution(handler: (e: TerminalShellExecutionEndEvent) => void): Disposable;
+
+    onDidChangeTerminalState(handler: (e: Terminal) => void): Disposable;
 }
 
 export const IDebugService = Symbol('IDebugManager');
diff --git a/src/client/common/terminal/service.ts b/src/client/common/terminal/service.ts
index 54c1fd1f795e..0dffd5615ae1 100644
--- a/src/client/common/terminal/service.ts
+++ b/src/client/common/terminal/service.ts
@@ -9,7 +9,7 @@ import { IServiceContainer } from '../../ioc/types';
 import { captureTelemetry } from '../../telemetry';
 import { EventName } from '../../telemetry/constants';
 import { ITerminalAutoActivation } from '../../terminals/types';
-import { ITerminalManager } from '../application/types';
+import { IApplicationShell, ITerminalManager } from '../application/types';
 import { _SCRIPTS_DIR } from '../process/internal/scripts/constants';
 import { IConfigurationService, IDisposableRegistry } from '../types';
 import {
@@ -20,9 +20,9 @@ import {
     TerminalShellType,
 } from './types';
 import { traceVerbose } from '../../logging';
+import { sleep } from '../utils/async';
 import { useEnvExtension } from '../../envExt/api.internal';
 import { ensureTerminalLegacy } from '../../envExt/api.legacy';
-import { sleep } from '../utils/async';
 
 @injectable()
 export class TerminalService implements ITerminalService, Disposable {
@@ -33,8 +33,13 @@ export class TerminalService implements ITerminalService, Disposable {
     private terminalHelper: ITerminalHelper;
     private terminalActivator: ITerminalActivator;
     private terminalAutoActivator: ITerminalAutoActivation;
+    private applicationShell: IApplicationShell;
     private readonly executeCommandListeners: Set<Disposable> = new Set();
     private _terminalFirstLaunched: boolean = true;
+    private pythonReplCommandQueue: string[] = [];
+    private isReplReady: boolean = false;
+    private replPromptListener?: Disposable;
+    private replShellTypeListener?: Disposable;
     public get onDidCloseTerminal(): Event<void> {
         return this.terminalClosed.event.bind(this.terminalClosed);
     }
@@ -48,11 +53,13 @@ export class TerminalService implements ITerminalService, Disposable {
         this.terminalHelper = this.serviceContainer.get<ITerminalHelper>(ITerminalHelper);
         this.terminalManager = this.serviceContainer.get<ITerminalManager>(ITerminalManager);
         this.terminalAutoActivator = this.serviceContainer.get<ITerminalAutoActivation>(ITerminalAutoActivation);
+        this.applicationShell = this.serviceContainer.get<IApplicationShell>(IApplicationShell);
         this.terminalManager.onDidCloseTerminal(this.terminalCloseHandler, this, disposableRegistry);
         this.terminalActivator = this.serviceContainer.get<ITerminalActivator>(ITerminalActivator);
     }
     public dispose() {
         this.terminal?.dispose();
+        this.disposeReplListener();
 
         if (this.executeCommandListeners && this.executeCommandListeners.size > 0) {
             this.executeCommandListeners.forEach((d) => {
@@ -81,7 +88,86 @@ export class TerminalService implements ITerminalService, Disposable {
         commandLine: string,
         isPythonShell: boolean,
     ): Promise<TerminalShellExecution | undefined> {
-        const terminal = this.terminal!;
+        if (isPythonShell) {
+            if (this.isReplReady) {
+                this.terminal?.sendText(commandLine);
+                traceVerbose(`Python REPL sendText: ${commandLine}`);
+            } else {
+                // Queue command to run once REPL is ready.
+                this.pythonReplCommandQueue.push(commandLine);
+                traceVerbose(`Python REPL queued command: ${commandLine}`);
+                this.startReplListener();
+            }
+            return undefined;
+        }
+
+        // Non-REPL code execution
+        return this.executeCommandInternal(commandLine);
+    }
+
+    private startReplListener(): void {
+        if (this.replPromptListener || this.replShellTypeListener) {
+            return;
+        }
+
+        this.replShellTypeListener = this.terminalManager.onDidChangeTerminalState((terminal) => {
+            if (this.terminal && terminal === this.terminal) {
+                if (terminal.state.shell == 'python') {
+                    traceVerbose('Python REPL ready from terminal shell api');
+                    this.onReplReady();
+                }
+            }
+        });
+
+        let terminalData = '';
+        this.replPromptListener = this.applicationShell.onDidWriteTerminalData((e) => {
+            if (this.terminal && e.terminal === this.terminal) {
+                terminalData += e.data;
+                if (/>>>\s*$/.test(terminalData)) {
+                    traceVerbose('Python REPL ready, from >>> prompt detection');
+                    this.onReplReady();
+                }
+            }
+        });
+    }
+
+    private onReplReady(): void {
+        if (this.isReplReady) {
+            return;
+        }
+        this.isReplReady = true;
+        this.flushReplQueue();
+        this.disposeReplListener();
+    }
+
+    private disposeReplListener(): void {
+        if (this.replPromptListener) {
+            this.replPromptListener.dispose();
+            this.replPromptListener = undefined;
+        }
+        if (this.replShellTypeListener) {
+            this.replShellTypeListener.dispose();
+            this.replShellTypeListener = undefined;
+        }
+    }
+
+    private flushReplQueue(): void {
+        while (this.pythonReplCommandQueue.length > 0) {
+            const commandLine = this.pythonReplCommandQueue.shift();
+            if (commandLine) {
+                traceVerbose(`Executing queued REPL command: ${commandLine}`);
+                this.terminal?.sendText(commandLine);
+            }
+        }
+    }
+
+    private async executeCommandInternal(commandLine: string): Promise<TerminalShellExecution | undefined> {
+        const terminal = this.terminal;
+        if (!terminal) {
+            traceVerbose('Terminal not available, cannot execute command');
+            return undefined;
+        }
+
         if (!this.options?.hideFromUser) {
             terminal.show(true);
         }
@@ -105,11 +191,7 @@ export class TerminalService implements ITerminalService, Disposable {
             await promise;
         }
 
-        if (isPythonShell) {
-            // Prevent KeyboardInterrupt in Python REPL: https://github.com/microsoft/vscode-python/issues/25468
-            terminal.sendText(commandLine);
-            traceVerbose(`Python REPL detected, sendText: ${commandLine}`);
-        } else if (terminal.shellIntegration) {
+        if (terminal.shellIntegration) {
             const execution = terminal.shellIntegration.executeCommand(commandLine);
             traceVerbose(`Shell Integration is enabled, executeCommand: ${commandLine}`);
             return execution;
@@ -138,6 +220,7 @@ export class TerminalService implements ITerminalService, Disposable {
                 name: this.options?.title || 'Python',
                 hideFromUser: this.options?.hideFromUser,
             });
+            return;
         } else {
             this.terminalShellType = this.terminalHelper.identifyTerminalShell(this.terminal);
             this.terminal = this.terminalManager.createTerminal({
@@ -167,6 +250,9 @@ export class TerminalService implements ITerminalService, Disposable {
         if (terminal === this.terminal) {
             this.terminalClosed.fire();
             this.terminal = undefined;
+            this.isReplReady = false;
+            this.disposeReplListener();
+            this.pythonReplCommandQueue = [];
         }
     }
 
diff --git a/src/client/common/vscodeApis/windowApis.ts b/src/client/common/vscodeApis/windowApis.ts
index fade0a028487..90a06e7ed75a 100644
--- a/src/client/common/vscodeApis/windowApis.ts
+++ b/src/client/common/vscodeApis/windowApis.ts
@@ -25,6 +25,7 @@ import {
     NotebookDocument,
     NotebookEditor,
     NotebookDocumentShowOptions,
+    Terminal,
 } from 'vscode';
 import { createDeferred, Deferred } from '../utils/async';
 import { Resource } from '../types';
@@ -124,6 +125,10 @@ export function onDidStartTerminalShellExecution(handler: (e: TerminalShellExecu
     return window.onDidStartTerminalShellExecution(handler);
 }
 
+export function onDidChangeTerminalState(handler: (e: Terminal) => void): Disposable {
+    return window.onDidChangeTerminalState(handler);
+}
+
 export enum MultiStepAction {
     Back = 'Back',
     Cancel = 'Cancel',
diff --git a/src/test/common/terminals/service.unit.test.ts b/src/test/common/terminals/service.unit.test.ts
index 246a599f17d6..3a6d54c9390b 100644
--- a/src/test/common/terminals/service.unit.test.ts
+++ b/src/test/common/terminals/service.unit.test.ts
@@ -14,8 +14,9 @@ import {
     Uri,
     Terminal as VSCodeTerminal,
     WorkspaceConfiguration,
+    TerminalDataWriteEvent,
 } from 'vscode';
-import { ITerminalManager, IWorkspaceService } from '../../../client/common/application/types';
+import { IApplicationShell, ITerminalManager, IWorkspaceService } from '../../../client/common/application/types';
 import { EXTENSION_ROOT_DIR } from '../../../client/common/constants';
 import { IPlatformService } from '../../../client/common/platform/types';
 import { TerminalService } from '../../../client/common/terminal/service';
@@ -56,6 +57,9 @@ suite('Terminal Service', () => {
     let useEnvExtensionStub: sinon.SinonStub;
     let interpreterService: TypeMoq.IMock<IInterpreterService>;
     let options: TypeMoq.IMock<TerminalCreationOptions>;
+    let applicationShell: TypeMoq.IMock<IApplicationShell>;
+    let onDidWriteTerminalDataEmitter: EventEmitter<TerminalDataWriteEvent>;
+    let onDidChangeTerminalStateEmitter: EventEmitter<VSCodeTerminal>;
 
     setup(() => {
         useEnvExtensionStub = sinon.stub(extapi, 'useEnvExtension');
@@ -118,6 +122,17 @@ suite('Terminal Service', () => {
         mockServiceContainer.setup((c) => c.get(ITerminalActivator)).returns(() => terminalActivator.object);
         mockServiceContainer.setup((c) => c.get(ITerminalAutoActivation)).returns(() => terminalAutoActivator.object);
         mockServiceContainer.setup((c) => c.get(IInterpreterService)).returns(() => interpreterService.object);
+
+        applicationShell = TypeMoq.Mock.ofType<IApplicationShell>();
+        onDidWriteTerminalDataEmitter = new EventEmitter<TerminalDataWriteEvent>();
+        applicationShell.setup((a) => a.onDidWriteTerminalData).returns(() => onDidWriteTerminalDataEmitter.event);
+        mockServiceContainer.setup((c) => c.get(IApplicationShell)).returns(() => applicationShell.object);
+
+        onDidChangeTerminalStateEmitter = new EventEmitter<VSCodeTerminal>();
+        terminalManager
+            .setup((t) => t.onDidChangeTerminalState(TypeMoq.It.isAny()))
+            .returns((handler) => onDidChangeTerminalStateEmitter.event(handler));
+
         getConfigurationStub = sinon.stub(workspaceApis, 'getConfiguration');
         isWindowsStub = sinon.stub(platform, 'isWindows');
         pythonConfig = TypeMoq.Mock.ofType<WorkspaceConfiguration>();
@@ -230,8 +245,10 @@ suite('Terminal Service', () => {
         terminalHelper.setup((h) => h.identifyTerminalShell(TypeMoq.It.isAny())).returns(() => TerminalShellType.bash);
         terminalManager.setup((t) => t.createTerminal(TypeMoq.It.isAny())).returns(() => terminal.object);
 
-        service.ensureTerminal();
-        service.executeCommand(textToSend, true);
+        await service.ensureTerminal();
+        const executePromise = service.executeCommand(textToSend, true);
+        onDidWriteTerminalDataEmitter.fire({ terminal: terminal.object, data: '>>> ' });
+        await executePromise;
 
         terminal.verify((t) => t.show(TypeMoq.It.isValue(true)), TypeMoq.Times.exactly(1));
         terminal.verify((t) => t.sendText(TypeMoq.It.isValue(textToSend)), TypeMoq.Times.exactly(1));
@@ -251,8 +268,10 @@ suite('Terminal Service', () => {
         terminalHelper.setup((h) => h.identifyTerminalShell(TypeMoq.It.isAny())).returns(() => TerminalShellType.bash);
         terminalManager.setup((t) => t.createTerminal(TypeMoq.It.isAny())).returns(() => terminal.object);
 
-        service.ensureTerminal();
-        service.executeCommand(textToSend, true);
+        await service.ensureTerminal();
+        const executePromise = service.executeCommand(textToSend, true);
+        onDidWriteTerminalDataEmitter.fire({ terminal: terminal.object, data: '>>> ' });
+        await executePromise;
 
         terminal.verify((t) => t.show(TypeMoq.It.isValue(true)), TypeMoq.Times.exactly(1));
         terminal.verify((t) => t.sendText(TypeMoq.It.isValue(textToSend)), TypeMoq.Times.exactly(1));
@@ -273,8 +292,10 @@ suite('Terminal Service', () => {
         terminalHelper.setup((h) => h.identifyTerminalShell(TypeMoq.It.isAny())).returns(() => TerminalShellType.bash);
         terminalManager.setup((t) => t.createTerminal(TypeMoq.It.isAny())).returns(() => terminal.object);
 
-        service.ensureTerminal();
-        service.executeCommand(textToSend, true);
+        await service.ensureTerminal();
+        const executePromise = service.executeCommand(textToSend, true);
+        onDidWriteTerminalDataEmitter.fire({ terminal: terminal.object, data: '>>> ' });
+        await executePromise;
 
         terminal.verify((t) => t.show(TypeMoq.It.isValue(true)), TypeMoq.Times.exactly(1));
         terminal.verify((t) => t.sendText(TypeMoq.It.isValue(textToSend)), TypeMoq.Times.exactly(1));
@@ -305,7 +326,9 @@ suite('Terminal Service', () => {
         terminalManager.setup((t) => t.createTerminal(TypeMoq.It.isAny())).returns(() => terminal.object);
 
         await service.ensureTerminal();
-        await service.executeCommand(textToSend, true);
+        const executePromise = service.executeCommand(textToSend, true);
+        onDidWriteTerminalDataEmitter.fire({ terminal: terminal.object, data: '>>> ' });
+        await executePromise;
 
         terminal.verify((t) => t.sendText(TypeMoq.It.isValue(textToSend)), TypeMoq.Times.once());
     });
@@ -325,13 +348,39 @@ suite('Terminal Service', () => {
         terminalHelper.setup((h) => h.identifyTerminalShell(TypeMoq.It.isAny())).returns(() => TerminalShellType.bash);
         terminalManager.setup((t) => t.createTerminal(TypeMoq.It.isAny())).returns(() => terminal.object);
 
-        service.ensureTerminal();
-        service.executeCommand(textToSend, true);
+        await service.ensureTerminal();
+        const executePromise = service.executeCommand(textToSend, true);
+        onDidWriteTerminalDataEmitter.fire({ terminal: terminal.object, data: '>>> ' });
+        await executePromise;
 
         terminal.verify((t) => t.show(TypeMoq.It.isValue(true)), TypeMoq.Times.exactly(1));
         terminal.verify((t) => t.sendText(TypeMoq.It.isValue(textToSend)), TypeMoq.Times.exactly(1));
     });
 
+    test('Ensure REPL ready when onDidChangeTerminalState fires with python shell', async () => {
+        pythonConfig
+            .setup((p) => p.get('terminal.shellIntegration.enabled'))
+            .returns(() => false)
+            .verifiable(TypeMoq.Times.once());
+
+        terminalHelper
+            .setup((helper) => helper.getEnvironmentActivationCommands(TypeMoq.It.isAny(), TypeMoq.It.isAny()))
+            .returns(() => Promise.resolve(undefined));
+        service = new TerminalService(mockServiceContainer.object);
+        const textToSend = 'Some Text';
+        terminalHelper.setup((h) => h.identifyTerminalShell(TypeMoq.It.isAny())).returns(() => TerminalShellType.bash);
+
+        terminal.setup((t) => t.state).returns(() => ({ isInteractedWith: true, shell: 'python' }));
+        terminalManager.setup((t) => t.createTerminal(TypeMoq.It.isAny())).returns(() => terminal.object);
+
+        await service.ensureTerminal();
+        const executePromise = service.executeCommand(textToSend, true);
+        onDidChangeTerminalStateEmitter.fire(terminal.object);
+        await executePromise;
+
+        terminal.verify((t) => t.sendText(TypeMoq.It.isValue(textToSend)), TypeMoq.Times.exactly(1));
+    });
+
     test('Ensure terminal is not shown if `hideFromUser` option is set to `true`', async () => {
         terminalHelper
             .setup((helper) => helper.getEnvironmentActivationCommands(TypeMoq.It.isAny(), TypeMoq.It.isAny()))
diff --git a/src/test/smoke/smartSend.smoke.test.ts b/src/test/smoke/smartSend.smoke.test.ts
index 80eabf356330..cae41cc094d5 100644
--- a/src/test/smoke/smartSend.smoke.test.ts
+++ b/src/test/smoke/smartSend.smoke.test.ts
@@ -19,11 +19,8 @@ suite('Smoke Test: Run Smart Selection and Advance Cursor', async () => {
     suiteTeardown(closeActiveWindows);
     teardown(closeActiveWindows);
 
-    // TODO: Re-enable this test once the flakiness on Windows is resolved
-    test('Smart Send', async function () {
-        if (process.platform === 'win32') {
-            return this.skip();
-        }
+    // TODO: Re-enable this test once the flakiness on Windows, linux are resolved
+    test.skip('Smart Send', async function () {
         const file = path.join(
             EXTENSION_ROOT_DIR_FOR_TESTS,
             'src',

From f6e249eda6e8564aec5c29e36445ea134119d6fc Mon Sep 17 00:00:00 2001
From: Stella Huang <100439259+StellaHuang95@users.noreply.github.com>
Date: Tue, 16 Dec 2025 13:50:38 -0800
Subject: [PATCH 117/178] Add telemetry (#25673)

added new pylance specific telemetry
---
 src/client/telemetry/pylance.ts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/client/telemetry/pylance.ts b/src/client/telemetry/pylance.ts
index 3d1ba05779dd..63bd113893e2 100644
--- a/src/client/telemetry/pylance.ts
+++ b/src/client/telemetry/pylance.ts
@@ -467,6 +467,11 @@
       "failed" : { "classification": "SystemMetaData", "purpose": "PerformanceAndHealth" }
    }
 */
+/* __GDPR__
+   "language_server/copilot_hover" : {
+      "symbolName" : { "classification": "SystemMetaData", "purpose": "PerformanceAndHealth" }
+   }
+*/
 /**
  * Telemetry event sent when LSP server crashes
  */

From cd15913dea5274ea17e7c55b22e55733f56e7b59 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Tue, 16 Dec 2025 13:51:44 -0800
Subject: [PATCH 118/178] Bump actions/upload-artifact from 5 to 6 (#25666)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps
[actions/upload-artifact](https://github.com/actions/upload-artifact)
from 5 to 6.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/actions/upload-artifact/releases">actions/upload-artifact's
releases</a>.</em></p>
<blockquote>
<h2>v6.0.0</h2>
<h2>v6 - What's new</h2>
<blockquote>
<p>[!IMPORTANT]
actions/upload-artifact@v6 now runs on Node.js 24 (<code>runs.using:
node24</code>) and requires a minimum Actions Runner version of 2.327.1.
If you are using self-hosted runners, ensure they are updated before
upgrading.</p>
</blockquote>
<h3>Node.js 24</h3>
<p>This release updates the runtime to Node.js 24. v5 had preliminary
support for Node.js 24, however this action was by default still running
on Node.js 20. Now this action by default will run on Node.js 24.</p>
<h2>What's Changed</h2>
<ul>
<li>Upload Artifact Node 24 support by <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a
href="https://redirect.github.com/actions/upload-artifact/pull/719">actions/upload-artifact#719</a></li>
<li>fix: update <code>@​actions/artifact</code> for Node.js 24 punycode
deprecation by <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a
href="https://redirect.github.com/actions/upload-artifact/pull/744">actions/upload-artifact#744</a></li>
<li>prepare release v6.0.0 for Node.js 24 support by <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a
href="https://redirect.github.com/actions/upload-artifact/pull/745">actions/upload-artifact#745</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/upload-artifact/compare/v5.0.0...v6.0.0">https://github.com/actions/upload-artifact/compare/v5.0.0...v6.0.0</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/actions/upload-artifact/commit/b7c566a772e6b6bfb58ed0dc250532a479d7789f"><code>b7c566a</code></a>
Merge pull request <a
href="https://redirect.github.com/actions/upload-artifact/issues/745">#745</a>
from actions/upload-artifact-v6-release</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/e516bc8500aaf3d07d591fcd4ae6ab5f9c391d5b"><code>e516bc8</code></a>
docs: correct description of Node.js 24 support in README</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/ddc45ed9bca9b38dbd643978d88e3981cdc91415"><code>ddc45ed</code></a>
docs: update README to correct action name for Node.js 24 support</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/615b319bd27bb32c3d64dca6b6ed6974d5fbe653"><code>615b319</code></a>
chore: release v6.0.0 for Node.js 24 support</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/017748b48f8610ca8e6af1222f4a618e84a9c703"><code>017748b</code></a>
Merge pull request <a
href="https://redirect.github.com/actions/upload-artifact/issues/744">#744</a>
from actions/fix-storage-blob</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/38d4c7997f5510fcc41fc4aae2a6b97becdbe7fc"><code>38d4c79</code></a>
chore: rebuild dist</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/7d27270e0cfd253e666c44abac0711308d2d042f"><code>7d27270</code></a>
chore: add missing license cache files for <code>@​actions/core</code>,
<code>@​actions/io</code>, and mi...</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/5f643d3c9475505ccaf26d686ffbfb71a8387261"><code>5f643d3</code></a>
chore: update license files for <code>@​actions/artifact</code><a
href="https://github.com/5"><code>@​5</code></a>.0.1 dependencies</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/1df1684032c88614064493e1a0478fcb3583e1d0"><code>1df1684</code></a>
chore: update package-lock.json with <code>@​actions/artifact</code><a
href="https://github.com/5"><code>@​5</code></a>.0.1</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/b5b1a918401ee270935b6b1d857ae66c85f3be6f"><code>b5b1a91</code></a>
fix: update <code>@​actions/artifact</code> to ^5.0.0 for Node.js 24
punycode fix</li>
<li>Additional commits viewable in <a
href="https://github.com/actions/upload-artifact/compare/v5...v6">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=actions/upload-artifact&package-manager=github_actions&previous-version=5&new-version=6)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

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<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 .github/workflows/pr-check.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/pr-check.yml b/.github/workflows/pr-check.yml
index 892d5d56f4fc..bd46877eb802 100644
--- a/.github/workflows/pr-check.yml
+++ b/.github/workflows/pr-check.yml
@@ -680,7 +680,7 @@ jobs:
         run: npm run test:cover:report
 
       - name: Upload HTML report
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: ${{ runner.os }}-coverage-report-html
           path: ./coverage

From 00b37cb0ecba48433d3d108db5fff75a0428ab26 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Tue, 16 Dec 2025 13:51:51 -0800
Subject: [PATCH 119/178] Bump dessant/lock-threads from 5.0.1 to 6.0.0
 (#25667)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps [dessant/lock-threads](https://github.com/dessant/lock-threads)
from 5.0.1 to 6.0.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/dessant/lock-threads/releases">dessant/lock-threads's
releases</a>.</em></p>
<blockquote>
<h2>v6.0.0</h2>
<p>Learn more about this release from the <a
href="https://github.com/dessant/lock-threads/blob/main/CHANGELOG.md#changelog">changelog</a>.</p>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/dessant/lock-threads/blob/main/CHANGELOG.md">dessant/lock-threads's
changelog</a>.</em></p>
<blockquote>
<h1>Changelog</h1>
<p>All notable changes to this project will be documented in this file.
See <a
href="https://github.com/absolute-version/commit-and-tag-version">commit-and-tag-version</a>
for commit guidelines.</p>
<h2><a
href="https://github.com/dessant/lock-threads/compare/v5.0.1...v6.0.0">6.0.0</a>
(2025-12-12)</h2>
<h3>⚠ BREAKING CHANGES</h3>
<ul>
<li>the action now requires Node.js 24</li>
</ul>
<h3>Bug Fixes</h3>
<ul>
<li>update dependencies (<a
href="https://github.com/dessant/lock-threads/commit/6548363a2d763e3a4a3a0dc04ca4a10481d8e536">6548363</a>)</li>
</ul>
<h2><a
href="https://github.com/dessant/lock-threads/compare/v5.0.0...v5.0.1">5.0.1</a>
(2023-11-22)</h2>
<h3>Bug Fixes</h3>
<ul>
<li>support filtering threads by labels with spaces (<a
href="https://github.com/dessant/lock-threads/commit/0a6367823273242f373440ac6d682e4f368a347f">0a63678</a>),
closes <a
href="https://redirect.github.com/dessant/lock-threads/issues/40">#40</a></li>
</ul>
<h2><a
href="https://github.com/dessant/lock-threads/compare/v4.0.1...v5.0.0">5.0.0</a>
(2023-11-14)</h2>
<h3>⚠ BREAKING CHANGES</h3>
<ul>
<li>Discussions are also processed by default,
set the <code>process-only</code> input parameter to preserve the old
behavior</li>
</ul>
<pre lang="yaml"><code>    steps:
      - uses: dessant/lock-threads@v5
        with:
          process-only: 'issues, prs'
</code></pre>
<ul>
<li>the action now requires Node.js 20</li>
</ul>
<h3>Features</h3>
<ul>
<li>lock discussions (<a
href="https://github.com/dessant/lock-threads/commit/0a0976f3ded51c88c6128dd96dd115c9f14fa764">0a0976f</a>),
closes <a
href="https://redirect.github.com/dessant/lock-threads/issues/25">#25</a></li>
</ul>
<h3>Bug Fixes</h3>
<ul>
<li>update dependencies (<a
href="https://github.com/dessant/lock-threads/commit/5a25b54eae3e7a5580d09ef0f7cbc5b18376db67">5a25b54</a>)</li>
</ul>
<h3><a
href="https://github.com/dessant/lock-threads/compare/v4.0.0...v4.0.1">4.0.1</a>
(2023-06-12)</h3>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/dessant/lock-threads/commit/7266a7ce5c1df01b1c6db85bf8cd86c737dadbe7"><code>7266a7c</code></a>
chore(release): 6.0.0</li>
<li><a
href="https://github.com/dessant/lock-threads/commit/1b10b746bb9aa359bb8eb0f1666515a389929aa8"><code>1b10b74</code></a>
chore: update package</li>
<li><a
href="https://github.com/dessant/lock-threads/commit/7d53f570b1a4ca8908c0fbcc1e5b124ac3903134"><code>7d53f57</code></a>
chore: update workflows</li>
<li><a
href="https://github.com/dessant/lock-threads/commit/e15e78d779715a438a45a106efe0531932c02a71"><code>e15e78d</code></a>
chore: update docs</li>
<li><a
href="https://github.com/dessant/lock-threads/commit/6548363a2d763e3a4a3a0dc04ca4a10481d8e536"><code>6548363</code></a>
fix: update dependencies</li>
<li>See full diff in <a
href="https://github.com/dessant/lock-threads/compare/1bf7ec25051fe7c00bdd17e6a7cf3d7bfb7dc771...7266a7ce5c1df01b1c6db85bf8cd86c737dadbe7">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=dessant/lock-threads&package-manager=github_actions&previous-version=5.0.1&new-version=6.0.0)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
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<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 .github/workflows/lock-issues.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/lock-issues.yml b/.github/workflows/lock-issues.yml
index cb6ed2e9d54e..544d04ee185e 100644
--- a/.github/workflows/lock-issues.yml
+++ b/.github/workflows/lock-issues.yml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: 'Lock Issues'
-        uses: dessant/lock-threads@1bf7ec25051fe7c00bdd17e6a7cf3d7bfb7dc771 # v5.0.1
+        uses: dessant/lock-threads@7266a7ce5c1df01b1c6db85bf8cd86c737dadbe7 # v6.0.0
         with:
           github-token: ${{ github.token }}
           issue-inactive-days: '30'

From 1530637a1d69886e6722525a483bb2bd1656496b Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Tue, 16 Dec 2025 13:51:58 -0800
Subject: [PATCH 120/178] Bump actions/upload-artifact from 5 to 6 in
 /.github/actions/build-vsix (#25668)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps
[actions/upload-artifact](https://github.com/actions/upload-artifact)
from 5 to 6.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/actions/upload-artifact/releases">actions/upload-artifact's
releases</a>.</em></p>
<blockquote>
<h2>v6.0.0</h2>
<h2>v6 - What's new</h2>
<blockquote>
<p>[!IMPORTANT]
actions/upload-artifact@v6 now runs on Node.js 24 (<code>runs.using:
node24</code>) and requires a minimum Actions Runner version of 2.327.1.
If you are using self-hosted runners, ensure they are updated before
upgrading.</p>
</blockquote>
<h3>Node.js 24</h3>
<p>This release updates the runtime to Node.js 24. v5 had preliminary
support for Node.js 24, however this action was by default still running
on Node.js 20. Now this action by default will run on Node.js 24.</p>
<h2>What's Changed</h2>
<ul>
<li>Upload Artifact Node 24 support by <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a
href="https://redirect.github.com/actions/upload-artifact/pull/719">actions/upload-artifact#719</a></li>
<li>fix: update <code>@​actions/artifact</code> for Node.js 24 punycode
deprecation by <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a
href="https://redirect.github.com/actions/upload-artifact/pull/744">actions/upload-artifact#744</a></li>
<li>prepare release v6.0.0 for Node.js 24 support by <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a
href="https://redirect.github.com/actions/upload-artifact/pull/745">actions/upload-artifact#745</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/upload-artifact/compare/v5.0.0...v6.0.0">https://github.com/actions/upload-artifact/compare/v5.0.0...v6.0.0</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/actions/upload-artifact/commit/b7c566a772e6b6bfb58ed0dc250532a479d7789f"><code>b7c566a</code></a>
Merge pull request <a
href="https://redirect.github.com/actions/upload-artifact/issues/745">#745</a>
from actions/upload-artifact-v6-release</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/e516bc8500aaf3d07d591fcd4ae6ab5f9c391d5b"><code>e516bc8</code></a>
docs: correct description of Node.js 24 support in README</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/ddc45ed9bca9b38dbd643978d88e3981cdc91415"><code>ddc45ed</code></a>
docs: update README to correct action name for Node.js 24 support</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/615b319bd27bb32c3d64dca6b6ed6974d5fbe653"><code>615b319</code></a>
chore: release v6.0.0 for Node.js 24 support</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/017748b48f8610ca8e6af1222f4a618e84a9c703"><code>017748b</code></a>
Merge pull request <a
href="https://redirect.github.com/actions/upload-artifact/issues/744">#744</a>
from actions/fix-storage-blob</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/38d4c7997f5510fcc41fc4aae2a6b97becdbe7fc"><code>38d4c79</code></a>
chore: rebuild dist</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/7d27270e0cfd253e666c44abac0711308d2d042f"><code>7d27270</code></a>
chore: add missing license cache files for <code>@​actions/core</code>,
<code>@​actions/io</code>, and mi...</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/5f643d3c9475505ccaf26d686ffbfb71a8387261"><code>5f643d3</code></a>
chore: update license files for <code>@​actions/artifact</code><a
href="https://github.com/5"><code>@​5</code></a>.0.1 dependencies</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/1df1684032c88614064493e1a0478fcb3583e1d0"><code>1df1684</code></a>
chore: update package-lock.json with <code>@​actions/artifact</code><a
href="https://github.com/5"><code>@​5</code></a>.0.1</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/b5b1a918401ee270935b6b1d857ae66c85f3be6f"><code>b5b1a91</code></a>
fix: update <code>@​actions/artifact</code> to ^5.0.0 for Node.js 24
punycode fix</li>
<li>Additional commits viewable in <a
href="https://github.com/actions/upload-artifact/compare/v5...v6">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=actions/upload-artifact&package-manager=github_actions&previous-version=5&new-version=6)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
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`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
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---

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<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
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</details>

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 .github/actions/build-vsix/action.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/actions/build-vsix/action.yml b/.github/actions/build-vsix/action.yml
index 1b665363b34f..95fec979b08e 100644
--- a/.github/actions/build-vsix/action.yml
+++ b/.github/actions/build-vsix/action.yml
@@ -93,7 +93,7 @@ runs:
         VSIX_NAME: ${{ inputs.vsix_name }}
 
     - name: Upload VSIX
-      uses: actions/upload-artifact@v5
+      uses: actions/upload-artifact@v6
       with:
         name: ${{ inputs.artifact_name }}
         path: ${{ inputs.vsix_name }}

From 05405197f2fb9b8d70c6db088edbcdad1b6dbc0a Mon Sep 17 00:00:00 2001
From: apuly <paul@bersee.nl>
Date: Tue, 16 Dec 2025 22:14:52 +0000
Subject: [PATCH 121/178] Don't re-run pytest when an exception in a test
 occurs (#25588)

The general `except` around the pytest run was causing tests to run
twice if the exception handling of pytest is disabled. From the comment
in the code it seems the exception handling is only there for when
reading the test IDs break, so it shouldn't be required around the
pytest main call.

Disabling the exception handling can be practical for debugging tests,
as this starts up the python debugger within vscode. Currently however,
this requires manually patching the run_pytest_script.py, which needs to
be re-done every vscode update.

fixes: https://github.com/microsoft/vscode-python/issues/25656

Co-authored-by: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
---
 python_files/vscode_pytest/run_pytest_script.py | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/python_files/vscode_pytest/run_pytest_script.py b/python_files/vscode_pytest/run_pytest_script.py
index 8d30ba7e4399..50ab12a35423 100644
--- a/python_files/vscode_pytest/run_pytest_script.py
+++ b/python_files/vscode_pytest/run_pytest_script.py
@@ -55,12 +55,13 @@ def run_pytest(args):
         try:
             # Read the test ids from the file and run pytest.
             ids = ids_path.read_text(encoding="utf-8").splitlines()
-            arg_array = ["-p", "vscode_pytest", *args, *ids]
-            print("Running pytest with args: " + str(arg_array))
-            pytest.main(arg_array)
         except Exception as e:
             print("Error[vscode-pytest]: unable to read testIds from temp file" + str(e))
             run_pytest(args)
+        else:
+            arg_array = ["-p", "vscode_pytest", *args, *ids]
+            print("Running pytest with args: " + str(arg_array))
+            pytest.main(arg_array)
         finally:
             # Delete the test ids temp file.
             try:

From 832a9aa34b16eec6878e7f1b232e0db1ff98c781 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Wed, 17 Dec 2025 10:01:02 -0800
Subject: [PATCH 122/178] fix(reportIssue): duplication of data (#25676)

fixes https://github.com/microsoft/vscode-python/issues/25369
---
 src/client/common/application/commands.ts        |  2 +-
 .../application/commands/reportIssueCommand.ts   |  2 +-
 .../commands/reportIssueCommand.unit.test.ts     | 16 ++++++++--------
 3 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/src/client/common/application/commands.ts b/src/client/common/application/commands.ts
index 402025ee38db..b43dc0a1e4a4 100644
--- a/src/client/common/application/commands.ts
+++ b/src/client/common/application/commands.ts
@@ -87,7 +87,7 @@ export interface ICommandNameArgumentTypeMapping extends ICommandNameWithoutArgu
     ['jupyter.opennotebook']: [undefined | Uri, undefined | CommandSource];
     ['jupyter.runallcells']: [Uri];
     ['extension.open']: [string];
-    ['workbench.action.openIssueReporter']: [{ extensionId: string; issueBody: string }];
+    ['workbench.action.openIssueReporter']: [{ extensionId: string; issueBody: string; extensionData?: string }];
     [Commands.GetSelectedInterpreterPath]: [{ workspaceFolder: string } | string[]];
     [Commands.TriggerEnvironmentSelection]: [undefined | Uri];
     [Commands.Start_Native_REPL]: [undefined | Uri];
diff --git a/src/client/common/application/commands/reportIssueCommand.ts b/src/client/common/application/commands/reportIssueCommand.ts
index e5633f4a4389..9ae099e44b4f 100644
--- a/src/client/common/application/commands/reportIssueCommand.ts
+++ b/src/client/common/application/commands/reportIssueCommand.ts
@@ -121,7 +121,7 @@ export class ReportIssueCommandHandler implements IExtensionSingleActivationServ
         await this.commandManager.executeCommand('workbench.action.openIssueReporter', {
             extensionId: 'ms-python.python',
             issueBody: template,
-            data: userTemplate.format(
+            extensionData: userTemplate.format(
                 pythonVersion,
                 virtualEnvKind,
                 languageServer,
diff --git a/src/test/common/application/commands/reportIssueCommand.unit.test.ts b/src/test/common/application/commands/reportIssueCommand.unit.test.ts
index b1884fa83c21..175a43d14007 100644
--- a/src/test/common/application/commands/reportIssueCommand.unit.test.ts
+++ b/src/test/common/application/commands/reportIssueCommand.unit.test.ts
@@ -126,17 +126,17 @@ suite('Report Issue Command', () => {
         );
         const expectedData = fs.readFileSync(userDataTemplatePath, 'utf8');
 
-        const args: [string, { extensionId: string; issueBody: string; data: string }] = capture<
+        const args: [string, { extensionId: string; issueBody: string; extensionData: string }] = capture<
             AllCommands,
-            { extensionId: string; issueBody: string; data: string }
+            { extensionId: string; issueBody: string; extensionData: string }
         >(cmdManager.executeCommand).last();
 
         verify(cmdManager.registerCommand(Commands.ReportIssue, anything(), anything())).once();
         verify(cmdManager.executeCommand('workbench.action.openIssueReporter', anything())).once();
         expect(args[0]).to.be.equal('workbench.action.openIssueReporter');
-        const { issueBody, data } = args[1];
+        const { issueBody, extensionData } = args[1];
         expect(issueBody).to.be.equal(expectedIssueBody);
-        expect(data).to.be.equal(expectedData);
+        expect(extensionData).to.be.equal(expectedData);
     });
 
     test('Test if issue body is filled when only including settings which are explicitly set', async () => {
@@ -167,16 +167,16 @@ suite('Report Issue Command', () => {
         );
         const expectedData = fs.readFileSync(userDataTemplatePath, 'utf8');
 
-        const args: [string, { extensionId: string; issueBody: string; data: string }] = capture<
+        const args: [string, { extensionId: string; issueBody: string; extensionData: string }] = capture<
             AllCommands,
-            { extensionId: string; issueBody: string; data: string }
+            { extensionId: string; issueBody: string; extensionData: string }
         >(cmdManager.executeCommand).last();
 
         verify(cmdManager.executeCommand('workbench.action.openIssueReporter', anything())).once();
         expect(args[0]).to.be.equal('workbench.action.openIssueReporter');
-        const { issueBody, data } = args[1];
+        const { issueBody, extensionData } = args[1];
         expect(issueBody).to.be.equal(expectedIssueBody);
-        expect(data).to.be.equal(expectedData);
+        expect(extensionData).to.be.equal(expectedData);
     });
     test('Should send telemetry event when run Report Issue Command', async () => {
         const sendTelemetryStub = sinon.stub(Telemetry, 'sendTelemetryEvent');

From dc7f9bf8823522d14def05596b54d8ad0f5a3578 Mon Sep 17 00:00:00 2001
From: Copilot <198982749+Copilot@users.noreply.github.com>
Date: Thu, 18 Dec 2025 18:43:26 +0000
Subject: [PATCH 123/178] Register test commands before first await to prevent
 activation race condition (#25654)

fixes https://github.com/microsoft/vscode-python/issues/22783 and
https://github.com/microsoft/vscode-python/issues/21865

The `python.configureTests` command was registered after multiple async
operations during extension activation, creating a race condition where
users could invoke the command before it was registered.

## Changes

- **Extract command registration**: Created standalone
`registerTestCommands()` function in `testing/main.ts` containing all
test command handlers (`Tests_Configure`, `Tests_CopilotSetup`,
`CopyTestId`)

- **Register synchronously before first await**: Moved
`unitTestsRegisterTypes()` and `registerTestCommands()` to
`extension.ts` immediately after `initializeStandard()`, before
`experimentService.activate()`

- **Remove duplicate registrations**: Cleaned up original registration
in `UnitTestManagementService.activate()` and `activateLegacy()`

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: eleanorjboyd <26030610+eleanorjboyd@users.noreply.github.com>
---
 src/client/extension.ts           |   7 ++
 src/client/extensionActivation.ts |   2 -
 src/client/testing/main.ts        | 155 +++++++++++++++++-------------
 3 files changed, 93 insertions(+), 71 deletions(-)

diff --git a/src/client/extension.ts b/src/client/extension.ts
index af26a5657330..c3fb2a3ab3b0 100644
--- a/src/client/extension.ts
+++ b/src/client/extension.ts
@@ -45,6 +45,8 @@ import { buildProposedApi } from './proposedApi';
 import { GLOBAL_PERSISTENT_KEYS } from './common/persistentState';
 import { registerTools } from './chat';
 import { IRecommendedEnvironmentService } from './interpreter/configuration/types';
+import { registerTypes as unitTestsRegisterTypes } from './testing/serviceRegistry';
+import { registerTestCommands } from './testing/main';
 
 durations.codeLoadingTime = stopWatch.elapsedTime;
 
@@ -121,6 +123,11 @@ async function activateUnsafe(
     // Note standard utils especially experiment and platform code are fundamental to the extension
     // and should be available before we activate anything else.Hence register them first.
     initializeStandard(ext);
+
+    // Register test services and commands early to prevent race conditions.
+    unitTestsRegisterTypes(ext.legacyIOC.serviceManager);
+    registerTestCommands(activatedServiceContainer);
+
     // We need to activate experiments before initializing components as objects are created or not created based on experiments.
     const experimentService = activatedServiceContainer.get<IExperimentService>(IExperimentService);
     // This guarantees that all experiment information has loaded & all telemetry will contain experiment info.
diff --git a/src/client/extensionActivation.ts b/src/client/extensionActivation.ts
index 8330d5010f7a..6e870e37ef3e 100644
--- a/src/client/extensionActivation.ts
+++ b/src/client/extensionActivation.ts
@@ -33,7 +33,6 @@ import { setExtensionInstallTelemetryProperties } from './telemetry/extensionIns
 import { registerTypes as tensorBoardRegisterTypes } from './tensorBoard/serviceRegistry';
 import { registerTypes as commonRegisterTerminalTypes } from './terminals/serviceRegistry';
 import { ICodeExecutionHelper, ICodeExecutionManager, ITerminalAutoActivation } from './terminals/types';
-import { registerTypes as unitTestsRegisterTypes } from './testing/serviceRegistry';
 
 // components
 import * as pythonEnvironments from './pythonEnvironments';
@@ -144,7 +143,6 @@ async function activateLegacy(ext: ExtensionState, startupStopWatch: StopWatch):
     const { enableProposedApi } = applicationEnv.packageJson;
     serviceManager.addSingletonInstance<boolean>(UseProposedApi, enableProposedApi);
     // Feature specific registrations.
-    unitTestsRegisterTypes(serviceManager);
     installerRegisterTypes(serviceManager);
     commonRegisterTerminalTypes(serviceManager);
     debugConfigurationRegisterTypes(serviceManager);
diff --git a/src/client/testing/main.ts b/src/client/testing/main.ts
index e794d5711f2a..eed4d70e852c 100644
--- a/src/client/testing/main.ts
+++ b/src/client/testing/main.ts
@@ -18,7 +18,7 @@ import { IDisposableRegistry, Product } from '../common/types';
 import { IInterpreterService } from '../interpreter/contracts';
 import { IServiceContainer } from '../ioc/types';
 import { EventName } from '../telemetry/constants';
-import { captureTelemetry, sendTelemetryEvent } from '../telemetry/index';
+import { sendTelemetryEvent } from '../telemetry/index';
 import { selectTestWorkspace } from './common/testUtils';
 import { TestSettingsPropertyNames } from './configuration/types';
 import { ITestConfigurationService, ITestsHelper } from './common/types';
@@ -42,6 +42,91 @@ export class TestingService implements ITestingService {
     }
 }
 
+/**
+ * Registers command handlers but defers service resolution until the commands are actually invoked,
+ * allowing registration to happen before all services are fully initialized.
+ */
+export function registerTestCommands(serviceContainer: IServiceContainer): void {
+    // Resolve only the essential services needed for command registration itself
+    const disposableRegistry = serviceContainer.get<Disposable[]>(IDisposableRegistry);
+    const commandManager = serviceContainer.get<ICommandManager>(ICommandManager);
+
+    // Helper function to configure tests - services are resolved when invoked, not at registration time
+    const configureTestsHandler = async (resource?: Uri) => {
+        sendTelemetryEvent(EventName.UNITTEST_CONFIGURE);
+
+        // Resolve services lazily when the command is invoked
+        const workspaceService = serviceContainer.get<IWorkspaceService>(IWorkspaceService);
+
+        let wkspace: Uri | undefined;
+        if (resource) {
+            const wkspaceFolder = workspaceService.getWorkspaceFolder(resource);
+            wkspace = wkspaceFolder ? wkspaceFolder.uri : undefined;
+        } else {
+            const appShell = serviceContainer.get<IApplicationShell>(IApplicationShell);
+            wkspace = await selectTestWorkspace(appShell);
+        }
+        if (!wkspace) {
+            return;
+        }
+        const interpreterService = serviceContainer.get<IInterpreterService>(IInterpreterService);
+        const cmdManager = serviceContainer.get<ICommandManager>(ICommandManager);
+        if (!(await interpreterService.getActiveInterpreter(wkspace))) {
+            cmdManager.executeCommand(constants.Commands.TriggerEnvironmentSelection, wkspace);
+            return;
+        }
+        const configurationService = serviceContainer.get<ITestConfigurationService>(ITestConfigurationService);
+        await configurationService.promptToEnableAndConfigureTestFramework(wkspace);
+    };
+
+    disposableRegistry.push(
+        // Command: python.configureTests - prompts user to configure test framework
+        commandManager.registerCommand(
+            constants.Commands.Tests_Configure,
+            (_, _cmdSource: constants.CommandSource = constants.CommandSource.commandPalette, resource?: Uri) => {
+                // Invoke configuration handler (errors are ignored as this can be called from multiple places)
+                configureTestsHandler(resource).ignoreErrors();
+                traceVerbose('Testing: Trigger refresh after config change');
+                // Refresh test data if test controller is available (resolved lazily)
+                if (tests && !!tests.createTestController) {
+                    const testController = serviceContainer.get<ITestController>(ITestController);
+                    testController?.refreshTestData(resource, { forceRefresh: true });
+                }
+            },
+        ),
+        // Command: python.tests.copilotSetup - Copilot integration for test setup
+        commandManager.registerCommand(constants.Commands.Tests_CopilotSetup, (resource?: Uri):
+            | { message: string; command: Command }
+            | undefined => {
+            // Resolve services lazily when the command is invoked
+            const workspaceService = serviceContainer.get<IWorkspaceService>(IWorkspaceService);
+            const wkspaceFolder =
+                workspaceService.getWorkspaceFolder(resource) || workspaceService.workspaceFolders?.at(0);
+            if (!wkspaceFolder) {
+                return undefined;
+            }
+
+            const configurationService = serviceContainer.get<ITestConfigurationService>(ITestConfigurationService);
+            if (configurationService.hasConfiguredTests(wkspaceFolder.uri)) {
+                return undefined;
+            }
+
+            return {
+                message: Testing.copilotSetupMessage,
+                command: {
+                    title: Testing.configureTests,
+                    command: constants.Commands.Tests_Configure,
+                    arguments: [undefined, constants.CommandSource.ui, resource],
+                },
+            };
+        }),
+        // Command: python.copyTestId - copies test ID to clipboard
+        commandManager.registerCommand(constants.Commands.CopyTestId, async (testItem: TestItem) => {
+            writeTestIdToClipboard(testItem);
+        }),
+    );
+}
+
 @injectable()
 export class UnitTestManagementService implements IExtensionActivationService {
     private activatedOnce: boolean = false;
@@ -80,7 +165,6 @@ export class UnitTestManagementService implements IExtensionActivationService {
         this.activatedOnce = true;
 
         this.registerHandlers();
-        this.registerCommands();
 
         if (!!tests.testResults) {
             await this.updateTestUIButtons();
@@ -130,73 +214,6 @@ export class UnitTestManagementService implements IExtensionActivationService {
         await Promise.all(changedWorkspaces.map((u) => this.testController?.refreshTestData(u)));
     }
 
-    @captureTelemetry(EventName.UNITTEST_CONFIGURE, undefined, false)
-    private async configureTests(resource?: Uri) {
-        let wkspace: Uri | undefined;
-        if (resource) {
-            const wkspaceFolder = this.workspaceService.getWorkspaceFolder(resource);
-            wkspace = wkspaceFolder ? wkspaceFolder.uri : undefined;
-        } else {
-            const appShell = this.serviceContainer.get<IApplicationShell>(IApplicationShell);
-            wkspace = await selectTestWorkspace(appShell);
-        }
-        if (!wkspace) {
-            return;
-        }
-        const interpreterService = this.serviceContainer.get<IInterpreterService>(IInterpreterService);
-        const commandManager = this.serviceContainer.get<ICommandManager>(ICommandManager);
-        if (!(await interpreterService.getActiveInterpreter(wkspace))) {
-            commandManager.executeCommand(constants.Commands.TriggerEnvironmentSelection, wkspace);
-            return;
-        }
-        const configurationService = this.serviceContainer.get<ITestConfigurationService>(ITestConfigurationService);
-        await configurationService.promptToEnableAndConfigureTestFramework(wkspace!);
-    }
-
-    private registerCommands(): void {
-        const commandManager = this.serviceContainer.get<ICommandManager>(ICommandManager);
-        this.disposableRegistry.push(
-            commandManager.registerCommand(
-                constants.Commands.Tests_Configure,
-                (_, _cmdSource: constants.CommandSource = constants.CommandSource.commandPalette, resource?: Uri) => {
-                    // Ignore the exceptions returned.
-                    // This command will be invoked from other places of the extension.
-                    this.configureTests(resource).ignoreErrors();
-                    traceVerbose('Testing: Trigger refresh after config change');
-                    this.testController?.refreshTestData(resource, { forceRefresh: true });
-                },
-            ),
-            commandManager.registerCommand(constants.Commands.Tests_CopilotSetup, (resource?: Uri):
-                | { message: string; command: Command }
-                | undefined => {
-                const wkspaceFolder =
-                    this.workspaceService.getWorkspaceFolder(resource) || this.workspaceService.workspaceFolders?.at(0);
-                if (!wkspaceFolder) {
-                    return undefined;
-                }
-
-                const configurationService = this.serviceContainer.get<ITestConfigurationService>(
-                    ITestConfigurationService,
-                );
-                if (configurationService.hasConfiguredTests(wkspaceFolder.uri)) {
-                    return undefined;
-                }
-
-                return {
-                    message: Testing.copilotSetupMessage,
-                    command: {
-                        title: Testing.configureTests,
-                        command: constants.Commands.Tests_Configure,
-                        arguments: [undefined, constants.CommandSource.ui, resource],
-                    },
-                };
-            }),
-            commandManager.registerCommand(constants.Commands.CopyTestId, async (testItem: TestItem) => {
-                writeTestIdToClipboard(testItem);
-            }),
-        );
-    }
-
     private registerHandlers() {
         const interpreterService = this.serviceContainer.get<IInterpreterService>(IInterpreterService);
         this.disposableRegistry.push(

From be293a9d76a0c78aab884552954dd6f641d405ed Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Thu, 18 Dec 2025 11:35:09 -0800
Subject: [PATCH 124/178] fix(tests): enhance pytest-cov detection (#25683)

fixes https://github.com/microsoft/vscode-python/issues/25590
---
 python_files/tests/pytestadapter/helpers.py   | 39 +++++++++++++------
 .../tests/pytestadapter/test_coverage.py      | 20 ++++++++++
 python_files/vscode_pytest/__init__.py        |  4 +-
 3 files changed, 51 insertions(+), 12 deletions(-)

diff --git a/python_files/tests/pytestadapter/helpers.py b/python_files/tests/pytestadapter/helpers.py
index 25e6187e2efa..03f1187149df 100644
--- a/python_files/tests/pytestadapter/helpers.py
+++ b/python_files/tests/pytestadapter/helpers.py
@@ -264,17 +264,34 @@ def runner_with_cwd_env(
         pipe_name = generate_random_pipe_name("pytest-discovery-test")
 
     if "COVERAGE_ENABLED" in env_add and "_TEST_VAR_UNITTEST" not in env_add:
-        process_args = [
-            sys.executable,
-            "-m",
-            "pytest",
-            "-p",
-            "vscode_pytest",
-            "--cov=.",
-            "--cov-branch",
-            "-s",
-            *args,
-        ]
+        if "_PYTEST_MANUAL_PLUGIN_LOAD" in env_add:
+            # Test manual plugin loading scenario for issue #25590
+            process_args = [
+                sys.executable,
+                "-m",
+                "pytest",
+                "--disable-plugin-autoload",
+                "-p",
+                "pytest_cov.plugin",
+                "-p",
+                "vscode_pytest",
+                "--cov=.",
+                "--cov-branch",
+                "-s",
+                *args,
+            ]
+        else:
+            process_args = [
+                sys.executable,
+                "-m",
+                "pytest",
+                "-p",
+                "vscode_pytest",
+                "--cov=.",
+                "--cov-branch",
+                "-s",
+                *args,
+            ]
 
     # Generate pipe name, pipe name specific per OS type.
 
diff --git a/python_files/tests/pytestadapter/test_coverage.py b/python_files/tests/pytestadapter/test_coverage.py
index d2d276172a8d..f2387527698f 100644
--- a/python_files/tests/pytestadapter/test_coverage.py
+++ b/python_files/tests/pytestadapter/test_coverage.py
@@ -142,3 +142,23 @@ def test_coverage_w_omit_config():
     assert results
     # assert one file is reported and one file (as specified in pyproject.toml) is omitted
     assert len(results) == 1
+
+
+def test_pytest_cov_manual_plugin_loading():
+    """
+    Test that pytest-cov is detected when loaded manually via -p pytest_cov.plugin.
+
+    This test verifies the fix for issue #25590, where pytest-cov detection failed
+    when using --disable-plugin-autoload with -p pytest_cov.plugin. The plugin is
+    registered under its module name (pytest_cov.plugin) instead of entry point name
+    (pytest_cov) in this scenario.
+    """
+    args = ["--collect-only"]
+    env_add = {"COVERAGE_ENABLED": "True", "_PYTEST_MANUAL_PLUGIN_LOAD": "True"}
+    cov_folder_path = TEST_DATA_PATH / "coverage_gen"
+
+    # Should NOT raise VSCodePytestError about pytest-cov not being installed
+    actual = runner_with_cwd_env(args, cov_folder_path, env_add)
+    assert actual is not None
+    # Verify discovery succeeded (status != "error")
+    assert actual[0].get("status") != "error"
diff --git a/python_files/vscode_pytest/__init__.py b/python_files/vscode_pytest/__init__.py
index 1222a324b232..89565dab1264 100644
--- a/python_files/vscode_pytest/__init__.py
+++ b/python_files/vscode_pytest/__init__.py
@@ -87,7 +87,9 @@ def __init__(self, message):
 
 
 def pytest_load_initial_conftests(early_config, parser, args):  # noqa: ARG001
-    has_pytest_cov = early_config.pluginmanager.hasplugin("pytest_cov")
+    has_pytest_cov = early_config.pluginmanager.hasplugin(
+        "pytest_cov"
+    ) or early_config.pluginmanager.hasplugin("pytest_cov.plugin")
     has_cov_arg = any("--cov" in arg for arg in args)
     if has_cov_arg and not has_pytest_cov:
         raise VSCodePytestError(

From 79035c8d008e937860a2b7eb4a4dbbb862ee259b Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Thu, 18 Dec 2025 11:40:14 -0800
Subject: [PATCH 125/178] fix(execution): redirect error messages to stderr and
 clean up print statements (#25684)

fixes https://github.com/microsoft/vscode-python/issues/24743
---
 python_files/unittestadapter/execution.py | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/python_files/unittestadapter/execution.py b/python_files/unittestadapter/execution.py
index a0a48c61470a..951289850884 100644
--- a/python_files/unittestadapter/execution.py
+++ b/python_files/unittestadapter/execution.py
@@ -284,10 +284,10 @@ def send_run_data(raw_data, test_run_pipe):
     run_test_ids_pipe = os.environ.get("RUN_TEST_IDS_PIPE")
     test_run_pipe = os.getenv("TEST_RUN_PIPE")
     if not run_test_ids_pipe:
-        print("Error[vscode-unittest]: RUN_TEST_IDS_PIPE env var is not set.")
+        print("Error[vscode-unittest]: RUN_TEST_IDS_PIPE env var is not set.", file=sys.stderr)
         raise VSCodeUnittestError("Error[vscode-unittest]: RUN_TEST_IDS_PIPE env var is not set.")
     if not test_run_pipe:
-        print("Error[vscode-unittest]: TEST_RUN_PIPE env var is not set.")
+        print("Error[vscode-unittest]: TEST_RUN_PIPE env var is not set.", file=sys.stderr)
         raise VSCodeUnittestError("Error[vscode-unittest]: TEST_RUN_PIPE env var is not set.")
     test_ids = []
     cwd = pathlib.Path(start_dir).absolute()
@@ -295,11 +295,10 @@ def send_run_data(raw_data, test_run_pipe):
         # Read the test ids from the file, attempt to delete file afterwords.
         ids_path = pathlib.Path(run_test_ids_pipe)
         test_ids = ids_path.read_text(encoding="utf-8").splitlines()
-        print("Received test ids from temp file.")
         try:
             ids_path.unlink()
         except Exception as e:
-            print("Error[vscode-pytest]: unable to delete temp file" + str(e))
+            print(f"Error[vscode-unittest]: unable to delete temp file: {e}", file=sys.stderr)
 
     except Exception as e:
         # No test ids received from buffer, return error payload
@@ -318,10 +317,6 @@ def send_run_data(raw_data, test_run_pipe):
     is_coverage_run = os.environ.get("COVERAGE_ENABLED") is not None
     include_branches = False
     if is_coverage_run:
-        print(
-            "COVERAGE_ENABLED env var set, starting coverage. workspace_root used as parent dir:",
-            workspace_root,
-        )
         import coverage
 
         # insert "python_files/lib/python" into the path so packaging can be imported
@@ -350,7 +345,6 @@ def send_run_data(raw_data, test_run_pipe):
 
     # If no error occurred, we will have test ids to run.
     if manage_py_path := os.environ.get("MANAGE_PY_PATH"):
-        print("MANAGE_PY_PATH env var set, running Django test suite.")
         args = argv[index + 1 :] or []
         django_execution_runner(manage_py_path, test_ids, args)
     else:

From 5109c79331e337de7d4c159aeac082dcdae0fce7 Mon Sep 17 00:00:00 2001
From: iBug <git@ibugone.com>
Date: Mon, 5 Jan 2026 15:47:18 +0800
Subject: [PATCH 126/178] Add __repr__ to custom PS1 class (#25568)

During my debugging and implementation of #25521, I find a descriptive
`__repr__()` for the custom PS1 object very helpful, so this PR comes as
an addition for #25521.

---------

Co-authored-by: Anthony Kim <62267334+anthonykim1@users.noreply.github.com>
---
 python_files/pythonrc.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/python_files/pythonrc.py b/python_files/pythonrc.py
index 63c52bc009da..3042ffb7a309 100644
--- a/python_files/pythonrc.py
+++ b/python_files/pythonrc.py
@@ -75,6 +75,9 @@ def __str__(self):
 
         return result
 
+    def __repr__(self):
+        return "<Custom PS1 for VS Code Python Shell Integration>"
+
 
 if sys.platform != "win32" and (not is_wsl):
     sys.ps1 = PS1()

From ee981bd7ecb488bf17e870cc87b593d4c82c62b6 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 5 Jan 2026 08:46:53 -0800
Subject: [PATCH 127/178] Bump qs from 6.12.1 to 6.14.1 (#25705)

Bumps [qs](https://github.com/ljharb/qs) from 6.12.1 to 6.14.1.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/ljharb/qs/blob/main/CHANGELOG.md">qs's
changelog</a>.</em></p>
<blockquote>
<h2><strong>6.14.1</strong></h2>
<ul>
<li>[Fix] ensure arrayLength applies to <code>[]</code> notation as
well</li>
<li>[Fix] <code>parse</code>: when a custom decoder returns
<code>null</code> for a key, ignore that key</li>
<li>[Refactor] <code>parse</code>: extract key segment splitting
helper</li>
<li>[meta] add threat model</li>
<li>[actions] add workflow permissions</li>
<li>[Tests] <code>stringify</code>: increase coverage</li>
<li>[Dev Deps] update <code>eslint</code>,
<code>@ljharb/eslint-config</code>, <code>npmignore</code>,
<code>es-value-fixtures</code>, <code>for-each</code>,
<code>object-inspect</code></li>
</ul>
<h2><strong>6.14.0</strong></h2>
<ul>
<li>[New] <code>parse</code>: add
<code>throwOnParameterLimitExceeded</code> option (<a
href="https://redirect.github.com/ljharb/qs/issues/517">#517</a>)</li>
<li>[Refactor] <code>parse</code>: use <code>utils.combine</code>
more</li>
<li>[patch] <code>parse</code>: add explicit
<code>throwOnLimitExceeded</code> default</li>
<li>[actions] use shared action; re-add finishers</li>
<li>[meta] Fix changelog formatting bug</li>
<li>[Deps] update <code>side-channel</code></li>
<li>[Dev Deps] update <code>es-value-fixtures</code>,
<code>has-bigints</code>, <code>has-proto</code>,
<code>has-symbols</code></li>
<li>[Tests] increase coverage</li>
</ul>
<h2><strong>6.13.1</strong></h2>
<ul>
<li>[Fix] <code>stringify</code>: avoid a crash when a
<code>filter</code> key is <code>null</code></li>
<li>[Fix] <code>utils.merge</code>: functions should not be stringified
into keys</li>
<li>[Fix] <code>parse</code>: avoid a crash with
interpretNumericEntities: true, comma: true, and iso charset</li>
<li>[Fix] <code>stringify</code>: ensure a non-string
<code>filter</code> does not crash</li>
<li>[Refactor] use <code>__proto__</code> syntax instead of
<code>Object.create</code> for null objects</li>
<li>[Refactor] misc cleanup</li>
<li>[Tests] <code>utils.merge</code>: add some coverage</li>
<li>[Tests] fix a test case</li>
<li>[actions] split out node 10-20, and 20+</li>
<li>[Dev Deps] update <code>es-value-fixtures</code>,
<code>mock-property</code>, <code>object-inspect</code>,
<code>tape</code></li>
</ul>
<h2><strong>6.13.0</strong></h2>
<ul>
<li>[New] <code>parse</code>: add <code>strictDepth</code> option (<a
href="https://redirect.github.com/ljharb/qs/issues/511">#511</a>)</li>
<li>[Tests] use <code>npm audit</code> instead of <code>aud</code></li>
</ul>
<h2><strong>6.12.3</strong></h2>
<ul>
<li>[Fix] <code>parse</code>: properly account for
<code>strictNullHandling</code> when <code>allowEmptyArrays</code></li>
<li>[meta] fix changelog indentation</li>
</ul>
<h2><strong>6.12.2</strong></h2>
<ul>
<li>[Fix] <code>parse</code>: parse encoded square brackets (<a
href="https://redirect.github.com/ljharb/qs/issues/506">#506</a>)</li>
<li>[readme] add CII best practices badge</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/ljharb/qs/commit/3fa11a5f643c76896387bd2d86904a2d0141fdf7"><code>3fa11a5</code></a>
v6.14.1</li>
<li><a
href="https://github.com/ljharb/qs/commit/a62670423c1ccab0dd83c621bfb98c7c024e314d"><code>a626704</code></a>
[Dev Deps] update <code>npmignore</code></li>
<li><a
href="https://github.com/ljharb/qs/commit/3086902ecf7f088d0d1803887643ac6c03d415b9"><code>3086902</code></a>
[Fix] ensure arrayLength applies to <code>[]</code> notation as
well</li>
<li><a
href="https://github.com/ljharb/qs/commit/fc7930e86c2264c1568c9f5606830e19b0bc2af2"><code>fc7930e</code></a>
[Dev Deps] update <code>eslint</code>,
<code>@ljharb/eslint-config</code></li>
<li><a
href="https://github.com/ljharb/qs/commit/0b06aac566abee45ef0327667a7cc89e7aed8b58"><code>0b06aac</code></a>
[Dev Deps] update <code>@ljharb/eslint-config</code></li>
<li><a
href="https://github.com/ljharb/qs/commit/64951f6200a1fb72cc003c6e8226dde3d2ef591f"><code>64951f6</code></a>
[Refactor] <code>parse</code>: extract key segment splitting helper</li>
<li><a
href="https://github.com/ljharb/qs/commit/e1bd2599cdff4c936ea52fb1f16f921cbe7aa88c"><code>e1bd259</code></a>
[Dev Deps] update <code>@ljharb/eslint-config</code></li>
<li><a
href="https://github.com/ljharb/qs/commit/f4b3d39709fef6ddbd85128d1ba4c6b566c4902e"><code>f4b3d39</code></a>
[eslint] add eslint 9 optional peer dep</li>
<li><a
href="https://github.com/ljharb/qs/commit/6e94d9596ca50dffafcef40a5f64eca89962cf34"><code>6e94d95</code></a>
[Dev Deps] update <code>eslint</code>,
<code>@ljharb/eslint-config</code>, <code>npmignore</code></li>
<li><a
href="https://github.com/ljharb/qs/commit/973dc3c51c86da9f4e30edeb4b1725158d439102"><code>973dc3c</code></a>
[actions] add workflow permissions</li>
<li>Additional commits viewable in <a
href="https://github.com/ljharb/qs/compare/v6.12.1...v6.14.1">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=qs&package-manager=npm_and_yarn&previous-version=6.12.1&new-version=6.14.1)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 package-lock.json | 145 +++++++++++++++++++++++++++++++++++++---------
 1 file changed, 119 insertions(+), 26 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 9d0c761b8e5f..0429833baad9 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10907,10 +10907,13 @@
             }
         },
         "node_modules/object-inspect": {
-            "version": "1.13.1",
-            "resolved": "https://registry.npmjs.org/object-inspect/-/object-inspect-1.13.1.tgz",
-            "integrity": "sha512-5qoj1RUiKOMsCCNLV1CBiPYE10sziTsnmNxkAI/rZhiD63CF7IqdFGC/XzjWjpSgLf0LxXX3bDFIh0E18f6UhQ==",
+            "version": "1.13.4",
+            "resolved": "https://registry.npmjs.org/object-inspect/-/object-inspect-1.13.4.tgz",
+            "integrity": "sha512-W67iLl4J2EXEGTbfeHCffrjDfitvLANg0UlX3wFUUSTx92KXRFegMHUVgSqE+wvhAbi4WqjGg9czysTV2Epbew==",
             "dev": true,
+            "engines": {
+                "node": ">= 0.4"
+            },
             "funding": {
                 "url": "https://github.com/sponsors/ljharb"
             }
@@ -11802,12 +11805,12 @@
             }
         },
         "node_modules/qs": {
-            "version": "6.12.1",
-            "resolved": "https://registry.npmjs.org/qs/-/qs-6.12.1.tgz",
-            "integrity": "sha512-zWmv4RSuB9r2mYQw3zxQuHWeU+42aKi1wWig/j4ele4ygELZ7PEO6MM7rim9oAQH2A5MWfsAVf/jPvTPgCbvUQ==",
+            "version": "6.14.1",
+            "resolved": "https://registry.npmjs.org/qs/-/qs-6.14.1.tgz",
+            "integrity": "sha512-4EK3+xJl8Ts67nLYNwqw/dsFVnCf+qR7RgXSK9jEEm9unao3njwMDdmsdvoKBKHzxd7tCYz5e5M+SnMjdtXGQQ==",
             "dev": true,
             "dependencies": {
-                "side-channel": "^1.0.6"
+                "side-channel": "^1.1.0"
             },
             "engines": {
                 "node": ">=0.6"
@@ -12531,15 +12534,69 @@
             }
         },
         "node_modules/side-channel": {
-            "version": "1.0.6",
-            "resolved": "https://registry.npmjs.org/side-channel/-/side-channel-1.0.6.tgz",
-            "integrity": "sha512-fDW/EZ6Q9RiO8eFG8Hj+7u/oW+XrPTIChwCOM2+th2A6OblDtYYIpve9m+KvI9Z4C9qSEXlaGR6bTEYHReuglA==",
+            "version": "1.1.0",
+            "resolved": "https://registry.npmjs.org/side-channel/-/side-channel-1.1.0.tgz",
+            "integrity": "sha512-ZX99e6tRweoUXqR+VBrslhda51Nh5MTQwou5tnUDgbtyM0dBgmhEDtWGP/xbKn6hqfPRHujUNwz5fy/wbbhnpw==",
             "dev": true,
             "dependencies": {
-                "call-bind": "^1.0.7",
                 "es-errors": "^1.3.0",
-                "get-intrinsic": "^1.2.4",
-                "object-inspect": "^1.13.1"
+                "object-inspect": "^1.13.3",
+                "side-channel-list": "^1.0.0",
+                "side-channel-map": "^1.0.1",
+                "side-channel-weakmap": "^1.0.2"
+            },
+            "engines": {
+                "node": ">= 0.4"
+            },
+            "funding": {
+                "url": "https://github.com/sponsors/ljharb"
+            }
+        },
+        "node_modules/side-channel-list": {
+            "version": "1.0.0",
+            "resolved": "https://registry.npmjs.org/side-channel-list/-/side-channel-list-1.0.0.tgz",
+            "integrity": "sha512-FCLHtRD/gnpCiCHEiJLOwdmFP+wzCmDEkc9y7NsYxeF4u7Btsn1ZuwgwJGxImImHicJArLP4R0yX4c2KCrMrTA==",
+            "dev": true,
+            "dependencies": {
+                "es-errors": "^1.3.0",
+                "object-inspect": "^1.13.3"
+            },
+            "engines": {
+                "node": ">= 0.4"
+            },
+            "funding": {
+                "url": "https://github.com/sponsors/ljharb"
+            }
+        },
+        "node_modules/side-channel-map": {
+            "version": "1.0.1",
+            "resolved": "https://registry.npmjs.org/side-channel-map/-/side-channel-map-1.0.1.tgz",
+            "integrity": "sha512-VCjCNfgMsby3tTdo02nbjtM/ewra6jPHmpThenkTYh8pG9ucZ/1P8So4u4FGBek/BjpOVsDCMoLA/iuBKIFXRA==",
+            "dev": true,
+            "dependencies": {
+                "call-bound": "^1.0.2",
+                "es-errors": "^1.3.0",
+                "get-intrinsic": "^1.2.5",
+                "object-inspect": "^1.13.3"
+            },
+            "engines": {
+                "node": ">= 0.4"
+            },
+            "funding": {
+                "url": "https://github.com/sponsors/ljharb"
+            }
+        },
+        "node_modules/side-channel-weakmap": {
+            "version": "1.0.2",
+            "resolved": "https://registry.npmjs.org/side-channel-weakmap/-/side-channel-weakmap-1.0.2.tgz",
+            "integrity": "sha512-WPS/HvHQTYnHisLo9McqBHOJk2FkHO/tlpvldyrnem4aeQp4hai3gythswg6p01oSoTl58rcpiFAjF2br2Ak2A==",
+            "dev": true,
+            "dependencies": {
+                "call-bound": "^1.0.2",
+                "es-errors": "^1.3.0",
+                "get-intrinsic": "^1.2.5",
+                "object-inspect": "^1.13.3",
+                "side-channel-map": "^1.0.1"
             },
             "engines": {
                 "node": ">= 0.4"
@@ -23396,9 +23453,9 @@
             "dev": true
         },
         "object-inspect": {
-            "version": "1.13.1",
-            "resolved": "https://registry.npmjs.org/object-inspect/-/object-inspect-1.13.1.tgz",
-            "integrity": "sha512-5qoj1RUiKOMsCCNLV1CBiPYE10sziTsnmNxkAI/rZhiD63CF7IqdFGC/XzjWjpSgLf0LxXX3bDFIh0E18f6UhQ==",
+            "version": "1.13.4",
+            "resolved": "https://registry.npmjs.org/object-inspect/-/object-inspect-1.13.4.tgz",
+            "integrity": "sha512-W67iLl4J2EXEGTbfeHCffrjDfitvLANg0UlX3wFUUSTx92KXRFegMHUVgSqE+wvhAbi4WqjGg9czysTV2Epbew==",
             "dev": true
         },
         "object-is": {
@@ -24070,12 +24127,12 @@
             "dev": true
         },
         "qs": {
-            "version": "6.12.1",
-            "resolved": "https://registry.npmjs.org/qs/-/qs-6.12.1.tgz",
-            "integrity": "sha512-zWmv4RSuB9r2mYQw3zxQuHWeU+42aKi1wWig/j4ele4ygELZ7PEO6MM7rim9oAQH2A5MWfsAVf/jPvTPgCbvUQ==",
+            "version": "6.14.1",
+            "resolved": "https://registry.npmjs.org/qs/-/qs-6.14.1.tgz",
+            "integrity": "sha512-4EK3+xJl8Ts67nLYNwqw/dsFVnCf+qR7RgXSK9jEEm9unao3njwMDdmsdvoKBKHzxd7tCYz5e5M+SnMjdtXGQQ==",
             "dev": true,
             "requires": {
-                "side-channel": "^1.0.6"
+                "side-channel": "^1.1.0"
             }
         },
         "query-string": {
@@ -24607,15 +24664,51 @@
             }
         },
         "side-channel": {
-            "version": "1.0.6",
-            "resolved": "https://registry.npmjs.org/side-channel/-/side-channel-1.0.6.tgz",
-            "integrity": "sha512-fDW/EZ6Q9RiO8eFG8Hj+7u/oW+XrPTIChwCOM2+th2A6OblDtYYIpve9m+KvI9Z4C9qSEXlaGR6bTEYHReuglA==",
+            "version": "1.1.0",
+            "resolved": "https://registry.npmjs.org/side-channel/-/side-channel-1.1.0.tgz",
+            "integrity": "sha512-ZX99e6tRweoUXqR+VBrslhda51Nh5MTQwou5tnUDgbtyM0dBgmhEDtWGP/xbKn6hqfPRHujUNwz5fy/wbbhnpw==",
             "dev": true,
             "requires": {
-                "call-bind": "^1.0.7",
                 "es-errors": "^1.3.0",
-                "get-intrinsic": "^1.2.4",
-                "object-inspect": "^1.13.1"
+                "object-inspect": "^1.13.3",
+                "side-channel-list": "^1.0.0",
+                "side-channel-map": "^1.0.1",
+                "side-channel-weakmap": "^1.0.2"
+            }
+        },
+        "side-channel-list": {
+            "version": "1.0.0",
+            "resolved": "https://registry.npmjs.org/side-channel-list/-/side-channel-list-1.0.0.tgz",
+            "integrity": "sha512-FCLHtRD/gnpCiCHEiJLOwdmFP+wzCmDEkc9y7NsYxeF4u7Btsn1ZuwgwJGxImImHicJArLP4R0yX4c2KCrMrTA==",
+            "dev": true,
+            "requires": {
+                "es-errors": "^1.3.0",
+                "object-inspect": "^1.13.3"
+            }
+        },
+        "side-channel-map": {
+            "version": "1.0.1",
+            "resolved": "https://registry.npmjs.org/side-channel-map/-/side-channel-map-1.0.1.tgz",
+            "integrity": "sha512-VCjCNfgMsby3tTdo02nbjtM/ewra6jPHmpThenkTYh8pG9ucZ/1P8So4u4FGBek/BjpOVsDCMoLA/iuBKIFXRA==",
+            "dev": true,
+            "requires": {
+                "call-bound": "^1.0.2",
+                "es-errors": "^1.3.0",
+                "get-intrinsic": "^1.2.5",
+                "object-inspect": "^1.13.3"
+            }
+        },
+        "side-channel-weakmap": {
+            "version": "1.0.2",
+            "resolved": "https://registry.npmjs.org/side-channel-weakmap/-/side-channel-weakmap-1.0.2.tgz",
+            "integrity": "sha512-WPS/HvHQTYnHisLo9McqBHOJk2FkHO/tlpvldyrnem4aeQp4hai3gythswg6p01oSoTl58rcpiFAjF2br2Ak2A==",
+            "dev": true,
+            "requires": {
+                "call-bound": "^1.0.2",
+                "es-errors": "^1.3.0",
+                "get-intrinsic": "^1.2.5",
+                "object-inspect": "^1.13.3",
+                "side-channel-map": "^1.0.1"
             }
         },
         "signal-exit": {

From 0e9282bdb1c0fc619e40f3cd43dd8f0588f61a4e Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Wed, 7 Jan 2026 12:58:23 -0800
Subject: [PATCH 128/178] update PET version to 2026.0 (#25714)

---
 build/azure-pipeline.stable.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build/azure-pipeline.stable.yml b/build/azure-pipeline.stable.yml
index 1815605b278d..237ba08dbc99 100644
--- a/build/azure-pipeline.stable.yml
+++ b/build/azure-pipeline.stable.yml
@@ -128,7 +128,7 @@ extends:
           project: 'Monaco'
           definition: 593
           buildVersionToDownload: 'latestFromBranch'
-          branchName: 'refs/heads/release/2025.16'
+          branchName: 'refs/heads/release/2026.0'
           targetPath: '$(Build.SourcesDirectory)/python-env-tools/bin'
           artifactName: 'bin-$(buildTarget)'
           itemPattern: |

From 72bb7214e21b097aa542a20be318fe24cf28213c Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Wed, 7 Jan 2026 13:32:52 -0800
Subject: [PATCH 129/178] update version to 2026.0.0 release version (#25715)

---
 package-lock.json | 4 ++--
 package.json      | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 0429833baad9..1a27113ad897 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "python",
-    "version": "2025.21.0-dev",
+    "version": "2026.0.0",
     "lockfileVersion": 2,
     "requires": true,
     "packages": {
         "": {
             "name": "python",
-            "version": "2025.21.0-dev",
+            "version": "2026.0.0",
             "license": "MIT",
             "dependencies": {
                 "@iarna/toml": "^3.0.0",
diff --git a/package.json b/package.json
index 286e80baa2df..7c0c8e7f8c0a 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
     "name": "python",
     "displayName": "Python",
     "description": "Python language support with extension access points for IntelliSense (Pylance), Debugging (Python Debugger), linting, formatting, refactoring, unit tests, and more.",
-    "version": "2025.21.0-dev",
+    "version": "2026.0.0",
     "featureFlags": {
         "usingNewInterpreterStorage": true
     },

From f14d68fa0be480a3409fbd2c426450fd4de2a43c Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Wed, 7 Jan 2026 13:46:01 -0800
Subject: [PATCH 130/178] update version to 2026.1.0-dev in package.json and
 package-lock.json (#25716)

---
 package-lock.json | 4 ++--
 package.json      | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 1a27113ad897..38324ae70a98 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "python",
-    "version": "2026.0.0",
+    "version": "2026.1.0-dev",
     "lockfileVersion": 2,
     "requires": true,
     "packages": {
         "": {
             "name": "python",
-            "version": "2026.0.0",
+            "version": "2026.1.0-dev",
             "license": "MIT",
             "dependencies": {
                 "@iarna/toml": "^3.0.0",
diff --git a/package.json b/package.json
index 7c0c8e7f8c0a..e1ccbd1ceefd 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
     "name": "python",
     "displayName": "Python",
     "description": "Python language support with extension access points for IntelliSense (Pylance), Debugging (Python Debugger), linting, formatting, refactoring, unit tests, and more.",
-    "version": "2026.0.0",
+    "version": "2026.1.0-dev",
     "featureFlags": {
         "usingNewInterpreterStorage": true
     },

From 92fbff4f08dc0a4f9835afb090d7c0cb2fdfb795 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Wed, 7 Jan 2026 13:46:30 -0800
Subject: [PATCH 131/178] Bump importlib-metadata from 8.7.0 to 8.7.1 (#25693)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps [importlib-metadata](https://github.com/python/importlib_metadata)
from 8.7.0 to 8.7.1.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/python/importlib_metadata/blob/main/NEWS.rst">importlib-metadata's
changelog</a>.</em></p>
<blockquote>
<h1>v8.7.1</h1>
<h2>Bugfixes</h2>
<ul>
<li>Fixed errors in FastPath under fork-multiprocessing. (<a
href="https://redirect.github.com/python/importlib_metadata/issues/520">#520</a>)</li>
<li>Removed cruft from Python 3.8. (<a
href="https://redirect.github.com/python/importlib_metadata/issues/524">#524</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/python/importlib_metadata/commit/84e9028d39062af975d0659c0e987c28bcc808a5"><code>84e9028</code></a>
Finalize</li>
<li><a
href="https://github.com/python/importlib_metadata/commit/36ed6f69888bba8cbabd3963714630ead6bdb762"><code>36ed6f6</code></a>
Merge pull request <a
href="https://redirect.github.com/python/importlib_metadata/issues/521">#521</a>
from 2xB/fix520</li>
<li><a
href="https://github.com/python/importlib_metadata/commit/f6eee5671a3e9e1cb56a6d3a6219145c19518713"><code>f6eee56</code></a>
Rely on passthrough to designate a wrapper for its side effect.</li>
<li><a
href="https://github.com/python/importlib_metadata/commit/3c9510bf848fd4031e76028da0c9f60129047546"><code>3c9510b</code></a>
Prefer noop for degenerate behavior.</li>
<li><a
href="https://github.com/python/importlib_metadata/commit/a36bab926643dcd67513851d5bebc285ef9ac681"><code>a36bab9</code></a>
Avoid if block.</li>
<li><a
href="https://github.com/python/importlib_metadata/commit/8dd2937cf852eb0d9ad96d4e45ed3470e80c1463"><code>8dd2937</code></a>
Decouple clear_after_fork from lru_cache and then compose.</li>
<li><a
href="https://github.com/python/importlib_metadata/commit/1da3f456ab53832fd6e1236f2338388d9ea0b0c6"><code>1da3f45</code></a>
Add news fragment.</li>
<li><a
href="https://github.com/python/importlib_metadata/commit/a1c25d8f2dc50abec65e4cf6d733b15d73c2f3b1"><code>a1c25d8</code></a>
🧎‍♀️ Genuflect to the types.</li>
<li><a
href="https://github.com/python/importlib_metadata/commit/4e962a8498990ba82120e7a58ce71abedefa0003"><code>4e962a8</code></a>
👹 Feed the hobgoblins (delint).</li>
<li><a
href="https://github.com/python/importlib_metadata/commit/6a30ab96290b18c0b9805268a201ca5011c1feae"><code>6a30ab9</code></a>
Allow initial currsize to be greater than one (as happens when running
the te...</li>
<li>Additional commits viewable in <a
href="https://github.com/python/importlib_metadata/compare/v8.7.0...v8.7.1">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=importlib-metadata&package-manager=pip&previous-version=8.7.0&new-version=8.7.1)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

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<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 requirements.txt | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/requirements.txt b/requirements.txt
index 1e5f673f43db..ae747359d4e2 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,8 +1,8 @@
 # This file was autogenerated by uv via the following command:
 #    uv pip compile --generate-hashes requirements.in -o requirements.txt
-importlib-metadata==8.7.0 \
-    --hash=sha256:d13b81ad223b890aa16c5471f2ac3056cf76c5f10f82d6f9292f0b415f389000 \
-    --hash=sha256:e5dd1551894c77868a30651cef00984d50e1002d06942a7101d34870c5f02afd
+importlib-metadata==8.7.1 \
+    --hash=sha256:49fef1ae6440c182052f407c8d34a68f72efc36db9ca90dc0113398f2fdde8bb \
+    --hash=sha256:5a1f80bf1daa489495071efbb095d75a634cf28a8bc299581244063b53176151
     # via -r requirements.in
 microvenv==2025.0 \
     --hash=sha256:568155ec18af01c89f270d35d123ab803b09672b480c3702d15fd69e9cc5bd1e \

From 336d699667166d7a2742954d6f9c1a32d47c5de1 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Thu, 8 Jan 2026 09:53:31 -0800
Subject: [PATCH 132/178] enhance error handling and user notifications for
 Python Locator failures (#25717)

fixes https://github.com/microsoft/vscode-python/issues/25689
---
 src/client/common/utils/localize.ts           | 12 ++++
 .../locators/common/nativePythonFinder.ts     | 68 ++++++++++++++++++-
 2 files changed, 77 insertions(+), 3 deletions(-)

diff --git a/src/client/common/utils/localize.ts b/src/client/common/utils/localize.ts
index 067275ad732c..a084fc647025 100644
--- a/src/client/common/utils/localize.ts
+++ b/src/client/common/utils/localize.ts
@@ -516,3 +516,15 @@ export namespace CreateEnv {
         );
     }
 }
+
+export namespace PythonLocator {
+    export const startupFailedNotification = l10n.t(
+        'Python Locator failed to start. Python environment discovery may not work correctly.',
+    );
+    export const windowsRuntimeMissing = l10n.t(
+        'Missing Windows runtime dependencies detected. The Python Locator requires the Microsoft Visual C++ Redistributable. This is often missing on clean Windows installations.',
+    );
+    export const windowsStartupFailed = l10n.t(
+        'Python Locator failed to start on Windows. This might be due to missing system dependencies such as the Microsoft Visual C++ Redistributable.',
+    );
+}
diff --git a/src/client/pythonEnvironments/base/locators/common/nativePythonFinder.ts b/src/client/pythonEnvironments/base/locators/common/nativePythonFinder.ts
index cb5ab63077c9..ea0d63cd7552 100644
--- a/src/client/pythonEnvironments/base/locators/common/nativePythonFinder.ts
+++ b/src/client/pythonEnvironments/base/locators/common/nativePythonFinder.ts
@@ -15,18 +15,24 @@ import { noop } from '../../../../common/utils/misc';
 import { getConfiguration, getWorkspaceFolderPaths, isTrusted } from '../../../../common/vscodeApis/workspaceApis';
 import { CONDAPATH_SETTING_KEY } from '../../../common/environmentManagers/conda';
 import { VENVFOLDERS_SETTING_KEY, VENVPATH_SETTING_KEY } from '../lowLevel/customVirtualEnvLocator';
-import { createLogOutputChannel } from '../../../../common/vscodeApis/windowApis';
+import { createLogOutputChannel, showWarningMessage } from '../../../../common/vscodeApis/windowApis';
 import { sendNativeTelemetry, NativePythonTelemetry } from './nativePythonTelemetry';
 import { NativePythonEnvironmentKind } from './nativePythonUtils';
 import type { IExtensionContext } from '../../../../common/types';
 import { StopWatch } from '../../../../common/utils/stopWatch';
 import { untildify } from '../../../../common/helpers';
 import { traceError } from '../../../../logging';
+import { Common, PythonLocator } from '../../../../common/utils/localize';
+import { Commands } from '../../../../common/constants';
+import { executeCommand } from '../../../../common/vscodeApis/commandApis';
+import { getGlobalStorage, IPersistentStorage } from '../../../../common/persistentState';
 
 const PYTHON_ENV_TOOLS_PATH = isWindows()
     ? path.join(EXTENSION_ROOT_DIR, 'python-env-tools', 'bin', 'pet.exe')
     : path.join(EXTENSION_ROOT_DIR, 'python-env-tools', 'bin', 'pet');
 
+const DONT_SHOW_SPAWN_ERROR_AGAIN = 'DONT_SHOW_NATIVE_FINDER_SPAWN_ERROR_AGAIN';
+
 export interface NativeEnvInfo {
     displayName?: string;
     name?: string;
@@ -106,8 +112,13 @@ class NativePythonFinderImpl extends DisposableBase implements NativePythonFinde
         timeToRefresh: 0,
     };
 
-    constructor(private readonly cacheDirectory?: Uri) {
+    private readonly suppressErrorNotification: IPersistentStorage<boolean>;
+
+    constructor(private readonly cacheDirectory?: Uri, private readonly context?: IExtensionContext) {
         super();
+        this.suppressErrorNotification = this.context
+            ? getGlobalStorage<boolean>(this.context, DONT_SHOW_SPAWN_ERROR_AGAIN, false)
+            : ({ get: () => false, set: async () => {} } as IPersistentStorage<boolean>);
         this.connection = this.start();
         void this.configure();
         this.firstRefreshResults = this.refreshFirstTime();
@@ -212,6 +223,30 @@ class NativePythonFinderImpl extends DisposableBase implements NativePythonFinde
             proc.stderr.on('data', (data) => this.outputChannel.error(data.toString()));
             writable.pipe(proc.stdin, { end: false });
 
+            // Handle spawn errors (e.g., missing DLLs on Windows)
+            proc.on('error', (error) => {
+                this.outputChannel.error(`Python Locator process error: ${error.message}`);
+                this.outputChannel.error(`Error details: ${JSON.stringify(error)}`);
+                this.handleSpawnError(error.message);
+            });
+
+            // Handle immediate exits with error codes
+            let hasStarted = false;
+            setTimeout(() => {
+                hasStarted = true;
+            }, 1000);
+
+            proc.on('exit', (code, signal) => {
+                if (!hasStarted && code !== null && code !== 0) {
+                    const errorMessage = `Python Locator process exited immediately with code ${code}`;
+                    this.outputChannel.error(errorMessage);
+                    if (signal) {
+                        this.outputChannel.error(`Exit signal: ${signal}`);
+                    }
+                    this.handleSpawnError(errorMessage);
+                }
+            });
+
             disposables.push({
                 dispose: () => {
                     try {
@@ -397,6 +432,33 @@ class NativePythonFinderImpl extends DisposableBase implements NativePythonFinde
     async getCondaInfo(): Promise<NativeCondaInfo> {
         return this.connection.sendRequest<NativeCondaInfo>('condaInfo');
     }
+
+    private async handleSpawnError(errorMessage: string): Promise<void> {
+        // Check if user has chosen to not see this error again
+        if (this.suppressErrorNotification.get()) {
+            return;
+        }
+
+        // Check for Windows runtime DLL issues
+        if (isWindows() && errorMessage.toLowerCase().includes('vcruntime')) {
+            this.outputChannel.error(PythonLocator.windowsRuntimeMissing);
+        } else if (isWindows()) {
+            this.outputChannel.error(PythonLocator.windowsStartupFailed);
+        }
+
+        // Show notification to user
+        const selection = await showWarningMessage(
+            PythonLocator.startupFailedNotification,
+            Common.openOutputPanel,
+            Common.doNotShowAgain,
+        );
+
+        if (selection === Common.openOutputPanel) {
+            await executeCommand(Commands.ViewOutput);
+        } else if (selection === Common.doNotShowAgain) {
+            await this.suppressErrorNotification.set(true);
+        }
+    }
 }
 
 type ConfigurationOptions = {
@@ -461,7 +523,7 @@ export function getNativePythonFinder(context?: IExtensionContext): NativePython
     }
     if (!_finder) {
         const cacheDirectory = context ? getCacheDirectory(context) : undefined;
-        _finder = new NativePythonFinderImpl(cacheDirectory);
+        _finder = new NativePythonFinderImpl(cacheDirectory, context);
         if (context) {
             context.subscriptions.push(_finder);
         }

From eb6df9a3459af81223df451a8502b834e19f0777 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Thu, 8 Jan 2026 09:57:31 -0800
Subject: [PATCH 133/178] feat(tasks): add shell task for check-python with
 venv activation (#25686)

fixes https://github.com/microsoft/vscode-python/issues/24121

since extension developers are frequently changing their shell
activation settings, this provides a way to activate the venv then run
the task to allow for consistent checks by developers that mirror CI
---
 .vscode/tasks.json | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/.vscode/tasks.json b/.vscode/tasks.json
index 0e33420c11db..c5a054ed43cf 100644
--- a/.vscode/tasks.json
+++ b/.vscode/tasks.json
@@ -39,6 +39,24 @@
             "problemMatcher": ["$python"],
             "label": "npm: check-python",
             "detail": "npm run check-python:ruff && npm run check-python:pyright"
+        },
+        {
+            "label": "npm: check-python (venv)",
+            "type": "shell",
+            "command": "bash",
+            "args": ["-lc", "source .venv/bin/activate && npm run check-python"],
+            "problemMatcher": [],
+            "detail": "Activates the repo .venv first (avoids pyenv/shim Python) then runs: npm run check-python",
+            "windows": {
+                "command": "pwsh",
+                "args": [
+                    "-NoProfile",
+                    "-ExecutionPolicy",
+                    "Bypass",
+                    "-Command",
+                    ".\\.venv\\Scripts\\Activate.ps1; npm run check-python"
+                ]
+            }
         }
     ]
 }

From e2681d5925fb8ef6cb810d191048bd56f56b3e3e Mon Sep 17 00:00:00 2001
From: Karthik Nadig <kanadig@microsoft.com>
Date: Thu, 8 Jan 2026 23:51:57 +0530
Subject: [PATCH 134/178] bump Node.js version to 22.21.1 across multiple
 configuration files (#25612)

Co-authored-by: eleanorjboyd <26030610+eleanorjboyd@users.noreply.github.com>
---
 .devcontainer/Dockerfile                    |  2 +-
 .github/workflows/build.yml                 |  2 +-
 .github/workflows/pr-check.yml              |  2 +-
 .nvmrc                                      |  2 +-
 build/azure-pipelines/pipeline.yml          |  6 ++--
 package-lock.json                           | 34 +++++++++++----------
 package.json                                |  2 +-
 pythonExtensionApi/package.json             |  2 +-
 src/client/common/process/rawProcessApis.ts |  3 +-
 9 files changed, 29 insertions(+), 26 deletions(-)

diff --git a/.devcontainer/Dockerfile b/.devcontainer/Dockerfile
index 3e7e9e9cf091..ffc0150ebac5 100644
--- a/.devcontainer/Dockerfile
+++ b/.devcontainer/Dockerfile
@@ -1,4 +1,4 @@
-FROM mcr.microsoft.com/devcontainers/typescript-node:18-bookworm
+FROM mcr.microsoft.com/devcontainers/typescript-node:22-bookworm
 
 RUN apt-get install -y wget bzip2
 
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 45bd02d29733..74f5d5a58a3a 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -11,7 +11,7 @@ on:
 permissions: {}
 
 env:
-  NODE_VERSION: 22.17.0
+  NODE_VERSION: 22.21.1
   PYTHON_VERSION: '3.10' # YML treats 3.10 the number as 3.1, so quotes around 3.10
   # Force a path with spaces and to test extension works in these scenarios
   # Unicode characters are causing 2.7 failures so skip that for now.
diff --git a/.github/workflows/pr-check.yml b/.github/workflows/pr-check.yml
index bd46877eb802..d7d8d3869505 100644
--- a/.github/workflows/pr-check.yml
+++ b/.github/workflows/pr-check.yml
@@ -10,7 +10,7 @@ on:
 permissions: {}
 
 env:
-  NODE_VERSION: 22.17.0
+  NODE_VERSION: 22.21.1
   PYTHON_VERSION: '3.10' # YML treats 3.10 the number as 3.1, so quotes around 3.10
   MOCHA_REPORTER_JUNIT: true # Use the mocha-multi-reporters and send output to both console (spec) and JUnit (mocha-junit-reporter). Also enables a reporter which exits the process running the tests if it haven't already.
   ARTIFACT_NAME_VSIX: ms-python-insiders-vsix
diff --git a/.nvmrc b/.nvmrc
index 67e145bf0f9d..c6a66a6e6a68 100644
--- a/.nvmrc
+++ b/.nvmrc
@@ -1 +1 @@
-v20.18.0
+v22.21.1
diff --git a/build/azure-pipelines/pipeline.yml b/build/azure-pipelines/pipeline.yml
index 46302aa6ff90..0796e38ca598 100644
--- a/build/azure-pipelines/pipeline.yml
+++ b/build/azure-pipelines/pipeline.yml
@@ -37,13 +37,13 @@ extends:
         testPlatforms:
           - name: Linux
             nodeVersions:
-              - 22.17.0
+              - 22.21.1
           - name: MacOS
             nodeVersions:
-              - 22.17.0
+              - 22.21.1
           - name: Windows
             nodeVersions:
-              - 22.17.0
+              - 22.21.1
         testSteps:
           - template: /build/azure-pipelines/templates/test-steps.yml@self
             parameters:
diff --git a/package-lock.json b/package-lock.json
index 38324ae70a98..ba516d3a59eb 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -50,7 +50,7 @@
                 "@types/glob": "^7.2.0",
                 "@types/lodash": "^4.14.104",
                 "@types/mocha": "^9.1.0",
-                "@types/node": "^22.5.0",
+                "@types/node": "^22.19.1",
                 "@types/semver": "^5.5.0",
                 "@types/shortid": "^0.0.29",
                 "@types/sinon": "^17.0.3",
@@ -1894,12 +1894,13 @@
             "dev": true
         },
         "node_modules/@types/node": {
-            "version": "22.5.0",
-            "resolved": "https://registry.npmjs.org/@types/node/-/node-22.5.0.tgz",
-            "integrity": "sha512-DkFrJOe+rfdHTqqMg0bSNlGlQ85hSoh2TPzZyhHsXnMtligRWpxUySiyw8FY14ITt24HVCiQPWxS3KO/QlGmWg==",
+            "version": "22.19.3",
+            "resolved": "https://registry.npmjs.org/@types/node/-/node-22.19.3.tgz",
+            "integrity": "sha512-1N9SBnWYOJTrNZCdh/yJE+t910Y128BoyY+zBLWhL3r0TYzlTmFdXrPwHL9DyFZmlEXNQQolTZh3KHV31QDhyA==",
             "dev": true,
+            "license": "MIT",
             "dependencies": {
-                "undici-types": "~6.19.2"
+                "undici-types": "~6.21.0"
             }
         },
         "node_modules/@types/semver": {
@@ -14090,10 +14091,11 @@
             }
         },
         "node_modules/undici-types": {
-            "version": "6.19.8",
-            "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.19.8.tgz",
-            "integrity": "sha512-ve2KP6f/JnbPBFyobGHuerC9g1FYGn/F8n1LWTwNxCEzd6IfqTwUQcNXgEtmmQ6DlRrC1hrSrBnCZPokRrDHjw==",
-            "dev": true
+            "version": "6.21.0",
+            "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.21.0.tgz",
+            "integrity": "sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==",
+            "dev": true,
+            "license": "MIT"
         },
         "node_modules/unicode": {
             "version": "14.0.0",
@@ -16670,12 +16672,12 @@
             "dev": true
         },
         "@types/node": {
-            "version": "22.5.0",
-            "resolved": "https://registry.npmjs.org/@types/node/-/node-22.5.0.tgz",
-            "integrity": "sha512-DkFrJOe+rfdHTqqMg0bSNlGlQ85hSoh2TPzZyhHsXnMtligRWpxUySiyw8FY14ITt24HVCiQPWxS3KO/QlGmWg==",
+            "version": "22.19.3",
+            "resolved": "https://registry.npmjs.org/@types/node/-/node-22.19.3.tgz",
+            "integrity": "sha512-1N9SBnWYOJTrNZCdh/yJE+t910Y128BoyY+zBLWhL3r0TYzlTmFdXrPwHL9DyFZmlEXNQQolTZh3KHV31QDhyA==",
             "dev": true,
             "requires": {
-                "undici-types": "~6.19.2"
+                "undici-types": "~6.21.0"
             }
         },
         "@types/semver": {
@@ -25816,9 +25818,9 @@
             "dev": true
         },
         "undici-types": {
-            "version": "6.19.8",
-            "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.19.8.tgz",
-            "integrity": "sha512-ve2KP6f/JnbPBFyobGHuerC9g1FYGn/F8n1LWTwNxCEzd6IfqTwUQcNXgEtmmQ6DlRrC1hrSrBnCZPokRrDHjw==",
+            "version": "6.21.0",
+            "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.21.0.tgz",
+            "integrity": "sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==",
             "dev": true
         },
         "unicode": {
diff --git a/package.json b/package.json
index e1ccbd1ceefd..544c72dba023 100644
--- a/package.json
+++ b/package.json
@@ -1746,7 +1746,7 @@
         "@types/glob": "^7.2.0",
         "@types/lodash": "^4.14.104",
         "@types/mocha": "^9.1.0",
-        "@types/node": "^22.5.0",
+        "@types/node": "^22.19.1",
         "@types/semver": "^5.5.0",
         "@types/shortid": "^0.0.29",
         "@types/sinon": "^17.0.3",
diff --git a/pythonExtensionApi/package.json b/pythonExtensionApi/package.json
index e4e956ff6065..11e0445aa8da 100644
--- a/pythonExtensionApi/package.json
+++ b/pythonExtensionApi/package.json
@@ -13,7 +13,7 @@
     "main": "./out/main.js",
     "types": "./out/main.d.ts",
     "engines": {
-        "node": ">=22.17.0",
+        "node": ">=22.21.1",
         "vscode": "^1.93.0"
     },
     "license": "MIT",
diff --git a/src/client/common/process/rawProcessApis.ts b/src/client/common/process/rawProcessApis.ts
index 5e3641328b69..864191851c91 100644
--- a/src/client/common/process/rawProcessApis.ts
+++ b/src/client/common/process/rawProcessApis.ts
@@ -58,7 +58,8 @@ export function shellExec(
     const shellOptions = getDefaultOptions(options, defaultEnv);
     if (!options.doNotLog) {
         const processLogger = new ProcessLogger(new WorkspaceService());
-        processLogger.logProcess(command, undefined, shellOptions);
+        const loggingOptions = { ...shellOptions, encoding: shellOptions.encoding ?? undefined };
+        processLogger.logProcess(command, undefined, loggingOptions);
     }
     return new Promise((resolve, reject) => {
         // eslint-disable-next-line @typescript-eslint/no-explicit-any

From c8b6f505c09fcd9bbb1c0f154cc71cdab51063d3 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Wed, 14 Jan 2026 04:42:41 -0800
Subject: [PATCH 135/178] Add conditional for Python agent tools (#25677)

fixes https://github.com/microsoft/vscode-python/issues/25644
---
 package.json | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/package.json b/package.json
index 544c72dba023..0f7958b0e263 100644
--- a/package.json
+++ b/package.json
@@ -1509,7 +1509,7 @@
                 "name": "get_python_environment_details",
                 "displayName": "Get Python Environment Info",
                 "userDescription": "%python.languageModelTools.get_python_environment_details.userDescription%",
-                "modelDescription": "This tool will retrieve the details of the Python Environment for the specified file or workspace. The details returned include the 1. Type of Python Environment (conda, venv, etec), 2. Version of Python, 3. List of all installed Python packages with their versions. ALWAYS call configure_python_environment before using this tool.",
+                "modelDescription": "This tool will retrieve the details of the Python Environment for the specified file or workspace. The details returned include the 1. Type of Python Environment (conda, venv, etc), 2. Version of Python, 3. List of all installed Python packages with their versions. ALWAYS call configure_python_environment before using this tool. IMPORTANT: This tool is only for Python environments (venv, virtualenv, conda, pipenv, poetry, pyenv, pixi, or any other Python environment manager). Do not use this tool for npm packages, system packages, Ruby gems, or any other non-Python dependencies.",
                 "toolReferenceName": "getPythonEnvironmentInfo",
                 "tags": [
                     "python",
@@ -1534,7 +1534,7 @@
                 "name": "get_python_executable_details",
                 "displayName": "Get Python Executable",
                 "userDescription": "%python.languageModelTools.get_python_executable_details.userDescription%",
-                "modelDescription": "This tool will retrieve the details of the Python Environment for the specified file or workspace. ALWAYS use this tool before executing any Python command in the terminal. This tool returns the details of how to construct the fully qualified path and or command including details such as arguments required to run Python in a terminal. Note: Instead of executing `python --version` or `python -c 'import sys; print(sys.executable)'`, use this tool to get the Python executable path to replace the `python` command. E.g. instead of using `python -c 'import sys; print(sys.executable)'`, use this tool to build the command `conda run -n <env_name> -c 'import sys; print(sys.executable)'`. ALWAYS call configure_python_environment before using this tool.",
+                "modelDescription": "This tool will retrieve the details of the Python Environment for the specified file or workspace. ALWAYS use this tool before executing any Python command in the terminal. This tool returns the details of how to construct the fully qualified path and or command including details such as arguments required to run Python in a terminal. Note: Instead of executing `python --version` or `python -c 'import sys; print(sys.executable)'`, use this tool to get the Python executable path to replace the `python` command. E.g. instead of using `python -c 'import sys; print(sys.executable)'`, use this tool to build the command `conda run -n <env_name> -c 'import sys; print(sys.executable)'`. ALWAYS call configure_python_environment before using this tool. IMPORTANT: This tool is only for Python environments (venv, virtualenv, conda, pipenv, poetry, pyenv, pixi, or any other Python environment manager). Do not use this tool for npm packages, system packages, Ruby gems, or any other non-Python dependencies.",
                 "toolReferenceName": "getPythonExecutableCommand",
                 "tags": [
                     "python",
@@ -1559,7 +1559,7 @@
                 "name": "install_python_packages",
                 "displayName": "Install Python Package",
                 "userDescription": "%python.languageModelTools.install_python_packages.userDescription%",
-                "modelDescription": "Installs Python packages in the given workspace. Use this tool to install Python packages in the user's chosen Python environment. ALWAYS call configure_python_environment before using this tool.",
+                "modelDescription": "Installs Python packages in the given workspace. Use this tool to install Python packages in the user's chosen Python environment. ALWAYS call configure_python_environment before using this tool. IMPORTANT: This tool should only be used to install Python packages using package managers like pip or conda (works with any Python environment: venv, virtualenv, pipenv, poetry, pyenv, pixi, conda, etc.). Do not use this tool to install npm packages, system packages (apt/brew/yum), Ruby gems, or any other non-Python dependencies.",
                 "toolReferenceName": "installPythonPackage",
                 "tags": [
                     "python",
@@ -1593,7 +1593,7 @@
             {
                 "name": "configure_python_environment",
                 "displayName": "Configure Python Environment",
-                "modelDescription": "This tool configures a Python environment in the given workspace. ALWAYS Use this tool to set up the user's chosen environment and ALWAYS call this tool before using any other Python related tools or running any Python command in the terminal.",
+                "modelDescription": "This tool configures a Python environment in the given workspace. ALWAYS Use this tool to set up the user's chosen environment and ALWAYS call this tool before using any other Python related tools or running any Python command in the terminal. IMPORTANT: This tool is only for Python environments (venv, virtualenv, conda, pipenv, poetry, pyenv, pixi, or any other Python environment manager). Do not use this tool for npm packages, system packages, Ruby gems, or any other non-Python dependencies.",
                 "userDescription": "%python.languageModelTools.configure_python_environment.userDescription%",
                 "toolReferenceName": "configurePythonEnvironment",
                 "tags": [

From cbcf5e17341c7e0f5c71c16c3262852f643d48b8 Mon Sep 17 00:00:00 2001
From: Anthony Kim <62267334+anthonykim1@users.noreply.github.com>
Date: Wed, 21 Jan 2026 22:47:59 -0800
Subject: [PATCH 136/178] Fix python_server.py infinite loop on EOF (fixes
 #25620) (#25746)

## Summary

Fixes #25620 - Leftover process `python_server.py` with 100% CPU after
closing VS Code.

## The Problem

When VS Code closes, the STDIN stream to `python_server.py` is closed.
The `readline()` method returns empty bytes (`b''`) to signal EOF.
However, the previous code incorrectly treated this as an empty line
separator, causing:

1. `get_headers()` to return an empty headers dict
2. `content_length` to be 0
3. The main loop to continue immediately back to `get_headers()`
4. An infinite loop consuming 100% CPU

## The Fix

This PR properly detects EOF by checking for `b''` (empty bytes) vs
`b'\r\n'` or `b'\n'` (actual empty line with newline characters):

**In `get_headers()`:**
```python
raw = STDIN.buffer.readline()
# Detect EOF: readline() returns empty bytes when input stream is closed
if raw == b"":
    raise EOFError("EOF reached while reading headers")
```

**In all callers (main loop, `handle_response()`, `custom_input()`):**
- Catch `EOFError` and exit gracefully with `sys.exit(0)`

## Key Insight

```python
# EOF: readline() returns empty bytes
io.BytesIO(b"").readline()  # Returns b''

# Empty line: readline() returns newline bytes
io.BytesIO(b"\r\n").readline()  # Returns b'\r\n'
```

## Testing

Added comprehensive unit tests in
`python_files/tests/test_python_server.py`:
- `test_get_headers_normal` - verifies normal header parsing still works
- `test_get_headers_eof_raises_error` - verifies EOF detection
- `test_get_headers_eof_mid_headers_raises_error` - EOF during header
reading
- `test_get_headers_empty_line_terminates` - empty line still terminates
headers
- `test_custom_input_exits_on_eof` - graceful exit from `custom_input()`
- `test_handle_response_exits_on_eof` - graceful exit from
`handle_response()`
- `test_main_loop_exits_on_eof` - simulates the main loop behavior
- `test_readline_eof_vs_empty_line` - documents the EOF vs empty line
distinction

All 8 tests pass.

## How to Verify

1. Open a Python file in VS Code
2. Use Shift+Enter to start a Native REPL session and run some commands
3. Close VS Code
4. Check for leftover processes: `ps aux | grep python_server`
5. With this fix, no leftover processes should remain
---
 python_files/python_server.py            |  25 +++-
 python_files/tests/test_python_server.py | 162 +++++++++++++++++++++++
 2 files changed, 180 insertions(+), 7 deletions(-)
 create mode 100644 python_files/tests/test_python_server.py

diff --git a/python_files/python_server.py b/python_files/python_server.py
index 77b43c692dc3..e7ee92794a21 100644
--- a/python_files/python_server.py
+++ b/python_files/python_server.py
@@ -64,6 +64,9 @@ def custom_input(prompt=""):
             message_text = STDIN.buffer.read(content_length).decode()
             message_json = json.loads(message_text)
             return message_json["result"]["userInput"]
+    except EOFError:
+        # Input stream closed, exit gracefully
+        sys.exit(0)
     except Exception:
         print_log(traceback.format_exc())
 
@@ -74,7 +77,7 @@ def custom_input(prompt=""):
 
 
 def handle_response(request_id):
-    while not STDIN.closed:
+    while True:
         try:
             headers = get_headers()
             # Content-Length is the data size in bytes.
@@ -88,8 +91,10 @@ def handle_response(request_id):
                     send_response(our_user_input, message_json["id"])
                 elif message_json["method"] == "exit":
                     sys.exit(0)
-
-        except Exception:  # noqa: PERF203
+        except EOFError:  # noqa: PERF203
+            # Input stream closed, exit gracefully
+            sys.exit(0)
+        except Exception:
             print_log(traceback.format_exc())
 
 
@@ -164,7 +169,11 @@ def get_value(self) -> str:
 def get_headers():
     headers = {}
     while True:
-        line = STDIN.buffer.readline().decode().strip()
+        raw = STDIN.buffer.readline()
+        # Detect EOF: readline() returns empty bytes when input stream is closed
+        if raw == b"":
+            raise EOFError("EOF reached while reading headers")
+        line = raw.decode().strip()
         if not line:
             break
         name, value = line.split(":", 1)
@@ -183,7 +192,7 @@ def get_headers():
     while "" in sys.path:
         sys.path.remove("")
     sys.path.insert(0, "")
-    while not STDIN.closed:
+    while True:
         try:
             headers = get_headers()
             # Content-Length is the data size in bytes.
@@ -198,6 +207,8 @@ def get_headers():
                     check_valid_command(request_json)
                 elif request_json["method"] == "exit":
                     sys.exit(0)
-
-        except Exception:  # noqa: PERF203
+        except EOFError:  # noqa: PERF203
+            # Input stream closed (VS Code terminated), exit gracefully
+            sys.exit(0)
+        except Exception:
             print_log(traceback.format_exc())
diff --git a/python_files/tests/test_python_server.py b/python_files/tests/test_python_server.py
new file mode 100644
index 000000000000..ca542b8ea292
--- /dev/null
+++ b/python_files/tests/test_python_server.py
@@ -0,0 +1,162 @@
+# Copyright (c) Microsoft Corporation. All rights reserved.
+# Licensed under the MIT License.
+
+"""Tests for python_server.py, specifically EOF handling to prevent infinite loops."""
+
+import io
+from unittest import mock
+
+import pytest
+
+
+class TestGetHeaders:
+    """Tests for the get_headers function."""
+
+    def test_get_headers_normal(self):
+        """Test get_headers with valid headers."""
+        # Arrange: Import the module
+        import python_server
+
+        # Create a mock stdin with valid headers
+        mock_input = b"Content-Length: 100\r\nContent-Type: application/json\r\n\r\n"
+        mock_stdin = io.BytesIO(mock_input)
+
+        # Act
+        with mock.patch.object(python_server, "STDIN", mock.Mock(buffer=mock_stdin)):
+            headers = python_server.get_headers()
+
+        # Assert
+        assert headers == {"Content-Length": "100", "Content-Type": "application/json"}
+
+    def test_get_headers_eof_raises_error(self):
+        """Test that get_headers raises EOFError when stdin is closed (EOF)."""
+        # Arrange: Import the module
+        import python_server
+
+        # Create a mock stdin that returns empty bytes (EOF)
+        mock_stdin = io.BytesIO(b"")
+
+        # Act & Assert
+        with mock.patch.object(python_server, "STDIN", mock.Mock(buffer=mock_stdin)), pytest.raises(
+            EOFError, match="EOF reached while reading headers"
+        ):
+            python_server.get_headers()
+
+    def test_get_headers_eof_mid_headers_raises_error(self):
+        """Test that get_headers raises EOFError when EOF occurs mid-headers."""
+        # Arrange: Import the module
+        import python_server
+
+        # Create a mock stdin with partial headers then EOF
+        mock_input = b"Content-Length: 100\r\n"  # No terminating empty line
+        mock_stdin = io.BytesIO(mock_input)
+
+        # Act & Assert
+        with mock.patch.object(python_server, "STDIN", mock.Mock(buffer=mock_stdin)), pytest.raises(
+            EOFError, match="EOF reached while reading headers"
+        ):
+            python_server.get_headers()
+
+    def test_get_headers_empty_line_terminates(self):
+        """Test that an empty line (not EOF) properly terminates header reading."""
+        # Arrange: Import the module
+        import python_server
+
+        # Create a mock stdin with headers followed by empty line
+        mock_input = b"Content-Length: 50\r\n\r\nsome body content"
+        mock_stdin = io.BytesIO(mock_input)
+
+        # Act
+        with mock.patch.object(python_server, "STDIN", mock.Mock(buffer=mock_stdin)):
+            headers = python_server.get_headers()
+
+        # Assert
+        assert headers == {"Content-Length": "50"}
+
+
+class TestEOFHandling:
+    """Tests for EOF handling in various functions that use get_headers."""
+
+    def test_custom_input_exits_on_eof(self):
+        """Test that custom_input exits gracefully on EOF."""
+        # Arrange: Import the module
+        import python_server
+
+        # Create a mock stdin that returns empty bytes (EOF)
+        mock_stdin = io.BytesIO(b"")
+        mock_stdout = io.BytesIO()
+
+        # Act & Assert
+        with mock.patch.object(
+            python_server, "STDIN", mock.Mock(buffer=mock_stdin)
+        ), mock.patch.object(python_server, "STDOUT", mock.Mock(buffer=mock_stdout)), pytest.raises(
+            SystemExit
+        ) as exc_info:
+            python_server.custom_input("prompt> ")
+
+        # Should exit with code 0 (graceful exit)
+        assert exc_info.value.code == 0
+
+    def test_handle_response_exits_on_eof(self):
+        """Test that handle_response exits gracefully on EOF."""
+        # Arrange: Import the module
+        import python_server
+
+        # Create a mock stdin that returns empty bytes (EOF)
+        mock_stdin = io.BytesIO(b"")
+
+        # Act & Assert
+        with mock.patch.object(python_server, "STDIN", mock.Mock(buffer=mock_stdin)), pytest.raises(
+            SystemExit
+        ) as exc_info:
+            python_server.handle_response("test-request-id")
+
+        # Should exit with code 0 (graceful exit)
+        assert exc_info.value.code == 0
+
+
+class TestMainLoopEOFHandling:
+    """Tests that simulate the main loop EOF scenario."""
+
+    def test_main_loop_exits_on_eof(self):
+        """Test that the main loop pattern exits gracefully on EOF.
+
+        This test verifies the fix for GitHub issue #25620 where the server
+        would spin at 100% CPU instead of exiting when VS Code closes.
+        """
+        # Arrange: Import the module
+        import python_server
+
+        # Create a mock stdin that returns empty bytes (EOF)
+        mock_stdin = io.BytesIO(b"")
+
+        # Simulate what happens in the main loop
+        with mock.patch.object(python_server, "STDIN", mock.Mock(buffer=mock_stdin)):
+            try:
+                python_server.get_headers()
+                # If we get here without raising EOFError, the fix isn't working
+                pytest.fail("Expected EOFError to be raised on EOF")
+            except EOFError:
+                # This is the expected behavior - the fix is working
+                pass
+
+    def test_readline_eof_vs_empty_line(self):
+        """Test that we correctly distinguish between EOF and empty line.
+
+        EOF: readline() returns b'' (empty bytes)
+        Empty line: readline() returns b'\\r\\n' or b'\\n' (newline bytes)
+        """
+        # Test EOF case
+        eof_stream = io.BytesIO(b"")
+        result = eof_stream.readline()
+        assert result == b"", "EOF should return empty bytes"
+
+        # Test empty line case
+        empty_line_stream = io.BytesIO(b"\r\n")
+        result = empty_line_stream.readline()
+        assert result == b"\r\n", "Empty line should return newline bytes"
+
+        # Test empty line with just newline
+        empty_line_stream2 = io.BytesIO(b"\n")
+        result = empty_line_stream2.readline()
+        assert result == b"\n", "Empty line should return newline bytes"

From 1965191db8467a48d3bd3594d44e111747bd0406 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Thu, 22 Jan 2026 16:39:32 -0800
Subject: [PATCH 137/178] Bump lodash from 4.17.21 to 4.17.23 (#25745)

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.21 to
4.17.23.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/lodash/lodash/commit/dec55b7a3b382da075e2eac90089b4cd00a26cbb"><code>dec55b7</code></a>
Bump main to v4.17.23 (<a
href="https://redirect.github.com/lodash/lodash/issues/6088">#6088</a>)</li>
<li><a
href="https://github.com/lodash/lodash/commit/19c9251b3631d7cf220b43bc757eb33f1084f117"><code>19c9251</code></a>
fix: setCacheHas JSDoc return type should be boolean (<a
href="https://redirect.github.com/lodash/lodash/issues/6071">#6071</a>)</li>
<li><a
href="https://github.com/lodash/lodash/commit/b5e672995ae26929d111a6e94589f8d03fb8e578"><code>b5e6729</code></a>
jsdoc: Add -0 and BigInt zeros to _.compact falsey values list (<a
href="https://redirect.github.com/lodash/lodash/issues/6062">#6062</a>)</li>
<li><a
href="https://github.com/lodash/lodash/commit/edadd452146f7e4bad4ea684e955708931d84d81"><code>edadd45</code></a>
Prevent prototype pollution on baseUnset function</li>
<li><a
href="https://github.com/lodash/lodash/commit/4879a7a7d0a4494b0e83c7fa21bcc9fc6e7f1a6d"><code>4879a7a</code></a>
doc: fix autoLink function, conversion of source links (<a
href="https://redirect.github.com/lodash/lodash/issues/6056">#6056</a>)</li>
<li><a
href="https://github.com/lodash/lodash/commit/9648f692b0fc7c2f6a7a763d754377200126c2e8"><code>9648f69</code></a>
chore: remove <code>yarn.lock</code> file (<a
href="https://redirect.github.com/lodash/lodash/issues/6053">#6053</a>)</li>
<li><a
href="https://github.com/lodash/lodash/commit/dfa407db0bf5b200f2c7a9e4f06830ceaf074be9"><code>dfa407d</code></a>
ci: remove legacy configuration files (<a
href="https://redirect.github.com/lodash/lodash/issues/6052">#6052</a>)</li>
<li><a
href="https://github.com/lodash/lodash/commit/156e1965ae78b121a88f81178ab81632304e8d64"><code>156e196</code></a>
feat: add renovate setup (<a
href="https://redirect.github.com/lodash/lodash/issues/6039">#6039</a>)</li>
<li><a
href="https://github.com/lodash/lodash/commit/933e1061b8c344d3fc742cdc400175d5ffc99bce"><code>933e106</code></a>
ci: add pipeline for Bun (<a
href="https://redirect.github.com/lodash/lodash/issues/6023">#6023</a>)</li>
<li><a
href="https://github.com/lodash/lodash/commit/072a807ff7ad8ffc7c1d2c3097266e815d138e20"><code>072a807</code></a>
docs: update links related to Open JS Foundation (<a
href="https://redirect.github.com/lodash/lodash/issues/5968">#5968</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/lodash/lodash/compare/4.17.21...4.17.23">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=lodash&package-manager=npm_and_yarn&previous-version=4.17.21&new-version=4.17.23)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

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[//]: # (dependabot-automerge-end)

---

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You can trigger Dependabot actions by commenting on this PR:
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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 package-lock.json | 14 +++++++-------
 package.json      |  2 +-
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index ba516d3a59eb..863c2a720678 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -17,7 +17,7 @@
                 "iconv-lite": "^0.6.3",
                 "inversify": "^6.0.2",
                 "jsonc-parser": "^3.0.0",
-                "lodash": "^4.17.21",
+                "lodash": "^4.17.23",
                 "minimatch": "^5.0.1",
                 "named-js-regexp": "^1.3.3",
                 "node-stream-zip": "^1.6.0",
@@ -9518,9 +9518,9 @@
             }
         },
         "node_modules/lodash": {
-            "version": "4.17.21",
-            "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
-            "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
+            "version": "4.17.23",
+            "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.23.tgz",
+            "integrity": "sha512-LgVTMpQtIopCi79SJeDiP0TfWi5CNEc/L/aRdTh3yIvmZXTnheWpKjSZhnvMl8iXbC1tFg9gdHHDMLoV7CnG+w=="
         },
         "node_modules/lodash.flattendeep": {
             "version": "4.4.0",
@@ -22393,9 +22393,9 @@
             }
         },
         "lodash": {
-            "version": "4.17.21",
-            "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
-            "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg=="
+            "version": "4.17.23",
+            "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.23.tgz",
+            "integrity": "sha512-LgVTMpQtIopCi79SJeDiP0TfWi5CNEc/L/aRdTh3yIvmZXTnheWpKjSZhnvMl8iXbC1tFg9gdHHDMLoV7CnG+w=="
         },
         "lodash.flattendeep": {
             "version": "4.4.0",
diff --git a/package.json b/package.json
index 0f7958b0e263..bc9131276c59 100644
--- a/package.json
+++ b/package.json
@@ -1713,7 +1713,7 @@
         "iconv-lite": "^0.6.3",
         "inversify": "^6.0.2",
         "jsonc-parser": "^3.0.0",
-        "lodash": "^4.17.21",
+        "lodash": "^4.17.23",
         "minimatch": "^5.0.1",
         "named-js-regexp": "^1.3.3",
         "node-stream-zip": "^1.6.0",

From 0b477a3baa6a64c3e0ebc9a58ee277b358bb93c1 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Tue, 27 Jan 2026 09:19:59 -0800
Subject: [PATCH 138/178]  remove method to update defaultInterpreterPath on
 env ext environment change (#25736)

fixes
https://github.com/microsoft/vscode-python-environments/issues/1082
---
 src/client/envExt/api.internal.ts | 32 +------------------------------
 src/client/extensionActivation.ts | 14 +-------------
 2 files changed, 2 insertions(+), 44 deletions(-)

diff --git a/src/client/envExt/api.internal.ts b/src/client/envExt/api.internal.ts
index c4247f63a3c5..07bc58ffc11e 100644
--- a/src/client/envExt/api.internal.ts
+++ b/src/client/envExt/api.internal.ts
@@ -1,7 +1,7 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 
-import { EventEmitter, Terminal, Uri, Disposable, ConfigurationTarget } from 'vscode';
+import { EventEmitter, Terminal, Uri, Disposable } from 'vscode';
 import { getExtension } from '../common/vscodeApis/extensionsApi';
 import {
     GetEnvironmentScope,
@@ -13,7 +13,6 @@ import {
     DidChangeEnvironmentEventArgs,
 } from './types';
 import { executeCommand } from '../common/vscodeApis/commandApis';
-import { IInterpreterPathService } from '../common/types';
 import { getConfiguration } from '../common/vscodeApis/workspaceApis';
 
 export const ENVS_EXTENSION_ID = 'ms-python.vscode-python-envs';
@@ -128,32 +127,3 @@ export async function clearCache(): Promise<void> {
         await executeCommand('python-envs.clearCache');
     }
 }
-
-export function registerEnvExtFeatures(
-    disposables: Disposable[],
-    interpreterPathService: IInterpreterPathService,
-): void {
-    if (useEnvExtension()) {
-        disposables.push(
-            onDidChangeEnvironmentEnvExt(async (e: DidChangeEnvironmentEventArgs) => {
-                const previousPath = interpreterPathService.get(e.uri);
-
-                if (previousPath !== e.new?.environmentPath.fsPath) {
-                    if (e.uri) {
-                        await interpreterPathService.update(
-                            e.uri,
-                            ConfigurationTarget.WorkspaceFolder,
-                            e.new?.environmentPath.fsPath,
-                        );
-                    } else {
-                        await interpreterPathService.update(
-                            undefined,
-                            ConfigurationTarget.Global,
-                            e.new?.environmentPath.fsPath,
-                        );
-                    }
-                }
-            }),
-        );
-    }
-}
diff --git a/src/client/extensionActivation.ts b/src/client/extensionActivation.ts
index 6e870e37ef3e..57bcb8237eeb 100644
--- a/src/client/extensionActivation.ts
+++ b/src/client/extensionActivation.ts
@@ -13,14 +13,7 @@ import { IApplicationEnvironment, ICommandManager, IWorkspaceService } from './c
 import { Commands, PYTHON_LANGUAGE, UseProposedApi } from './common/constants';
 import { registerTypes as installerRegisterTypes } from './common/installer/serviceRegistry';
 import { IFileSystem } from './common/platform/types';
-import {
-    IConfigurationService,
-    IDisposableRegistry,
-    IExtensions,
-    IInterpreterPathService,
-    ILogOutputChannel,
-    IPathUtils,
-} from './common/types';
+import { IConfigurationService, IDisposableRegistry, IExtensions, ILogOutputChannel, IPathUtils } from './common/types';
 import { noop } from './common/utils/misc';
 import { registerTypes as debugConfigurationRegisterTypes } from './debugger/extension/serviceRegistry';
 import { IDebugConfigurationService } from './debugger/extension/types';
@@ -55,7 +48,6 @@ import { registerTriggerForTerminalREPL } from './terminals/codeExecution/termin
 import { registerPythonStartup } from './terminals/pythonStartup';
 import { registerPixiFeatures } from './pythonEnvironments/common/environmentManagers/pixi';
 import { registerCustomTerminalLinkProvider } from './terminals/pythonStartupLinkProvider';
-import { registerEnvExtFeatures } from './envExt/api.internal';
 
 export async function activateComponents(
     // `ext` is passed to any extra activation funcs.
@@ -95,13 +87,9 @@ export function activateFeatures(ext: ExtensionState, _components: Components):
     const interpreterQuickPick: IInterpreterQuickPick = ext.legacyIOC.serviceContainer.get<IInterpreterQuickPick>(
         IInterpreterQuickPick,
     );
-    const interpreterPathService: IInterpreterPathService = ext.legacyIOC.serviceContainer.get<IInterpreterPathService>(
-        IInterpreterPathService,
-    );
     const interpreterService: IInterpreterService = ext.legacyIOC.serviceContainer.get<IInterpreterService>(
         IInterpreterService,
     );
-    registerEnvExtFeatures(ext.disposables, interpreterPathService);
     const pathUtils = ext.legacyIOC.serviceContainer.get<IPathUtils>(IPathUtils);
     registerPixiFeatures(ext.disposables);
     registerAllCreateEnvironmentFeatures(

From c840796d4cf21ddd02085ed876231d48399209b7 Mon Sep 17 00:00:00 2001
From: Anthony Kim <62267334+anthonykim1@users.noreply.github.com>
Date: Thu, 5 Feb 2026 13:51:04 -0800
Subject: [PATCH 139/178] Fix native repl not using env extension (#25763)

Resolves:
https://github.com/microsoft/vscode-python-environments/issues/992
We now also handle interpreter switch mid-repl session.
---
 python_files/vscode_pytest/__init__.py |  8 +--
 src/client/repl/nativeRepl.ts          | 73 ++++++++++++++++++++++++--
 src/client/repl/pythonServer.ts        | 57 +++++++++++++++-----
 src/client/repl/replCommands.ts        |  6 +--
 src/client/repl/replUtils.ts           |  7 +--
 src/test/repl/nativeRepl.test.ts       |  2 +
 src/test/repl/replCommand.test.ts      | 47 ++++++++++++++++-
 7 files changed, 173 insertions(+), 27 deletions(-)

diff --git a/python_files/vscode_pytest/__init__.py b/python_files/vscode_pytest/__init__.py
index 89565dab1264..cb0fcd69a00e 100644
--- a/python_files/vscode_pytest/__init__.py
+++ b/python_files/vscode_pytest/__init__.py
@@ -190,7 +190,7 @@ def pytest_exception_interact(node, call, report):
             send_execution_message(
                 os.fsdecode(cwd),
                 "success",
-                collected_test if collected_test else None,
+                collected_test or None,
             )
 
 
@@ -314,7 +314,7 @@ def pytest_report_teststatus(report, config):  # noqa: ARG001
             send_execution_message(
                 os.fsdecode(cwd),
                 "success",
-                collected_test if collected_test else None,
+                collected_test or None,
             )
     yield
 
@@ -348,7 +348,7 @@ def pytest_runtest_protocol(item, nextitem):  # noqa: ARG001
             send_execution_message(
                 os.fsdecode(cwd),
                 "success",
-                collected_test if collected_test else None,
+                collected_test or None,
             )
     yield
 
@@ -1024,7 +1024,7 @@ def get_node_path(
         except Exception as e:
             raise VSCodePytestError(
                 f"Error occurred while calculating symlink equivalent from node path: {e}"
-                f"\n SYMLINK_PATH: {SYMLINK_PATH}, \n node path: {node_path}, \n cwd: {_CACHED_CWD if _CACHED_CWD else pathlib.Path.cwd()}"
+                f"\n SYMLINK_PATH: {SYMLINK_PATH}, \n node path: {node_path}, \n cwd: {_CACHED_CWD or pathlib.Path.cwd()}"
             ) from e
     else:
         result = node_path
diff --git a/src/client/repl/nativeRepl.ts b/src/client/repl/nativeRepl.ts
index 62e314172da6..3f8a085da467 100644
--- a/src/client/repl/nativeRepl.ts
+++ b/src/client/repl/nativeRepl.ts
@@ -4,9 +4,10 @@
 // Native Repl class that holds instance of pythonServer and replController
 
 import { NotebookController, NotebookDocument, QuickPickItem, TextEditor, Uri, WorkspaceFolder } from 'vscode';
+import * as path from 'path';
 import { Disposable } from 'vscode-jsonrpc';
 import { PVSC_EXTENSION_ID } from '../common/constants';
-import { showQuickPick } from '../common/vscodeApis/windowApis';
+import { showNotebookDocument, showQuickPick } from '../common/vscodeApis/windowApis';
 import { getWorkspaceFolders, onDidCloseNotebookDocument } from '../common/vscodeApis/workspaceApis';
 import { PythonEnvironment } from '../pythonEnvironments/info';
 import { createPythonServer, PythonServer } from './pythonServer';
@@ -18,6 +19,8 @@ import { VariablesProvider } from './variables/variablesProvider';
 import { VariableRequester } from './variables/variableRequester';
 import { getTabNameForUri } from './replUtils';
 import { getWorkspaceStateValue, updateWorkspaceStateValue } from '../common/persistentState';
+import { onDidChangeEnvironmentEnvExt, useEnvExtension } from '../envExt/api.internal';
+import { getActiveInterpreterLegacy } from '../envExt/api.legacy';
 
 export const NATIVE_REPL_URI_MEMENTO = 'nativeReplUri';
 let nativeRepl: NativeRepl | undefined;
@@ -37,6 +40,10 @@ export class NativeRepl implements Disposable {
 
     public newReplSession: boolean | undefined = true;
 
+    private envChangeListenerRegistered = false;
+
+    private pendingInterpreterChange?: { resource?: Uri };
+
     // TODO: In the future, could also have attribute of URI for file specific REPL.
     private constructor() {
         this.watchNotebookClosed();
@@ -48,7 +55,9 @@ export class NativeRepl implements Disposable {
         nativeRepl.interpreter = interpreter;
         await nativeRepl.setReplDirectory();
         nativeRepl.pythonServer = createPythonServer([interpreter.path as string], nativeRepl.cwd);
+        nativeRepl.disposables.push(nativeRepl.pythonServer);
         nativeRepl.setReplController();
+        nativeRepl.registerInterpreterChangeHandler();
 
         return nativeRepl;
     }
@@ -116,8 +125,8 @@ export class NativeRepl implements Disposable {
     /**
      * Function that check if NotebookController for REPL exists, and returns it in Singleton manner.
      */
-    public setReplController(): NotebookController {
-        if (!this.replController) {
+    public setReplController(force: boolean = false): NotebookController {
+        if (!this.replController || force) {
             this.replController = createReplController(this.interpreter!.path, this.disposables, this.cwd);
             this.replController.variableProvider = new VariablesProvider(
                 new VariableRequester(this.pythonServer),
@@ -128,6 +137,64 @@ export class NativeRepl implements Disposable {
         return this.replController;
     }
 
+    private registerInterpreterChangeHandler(): void {
+        if (!useEnvExtension() || this.envChangeListenerRegistered) {
+            return;
+        }
+        this.envChangeListenerRegistered = true;
+        this.disposables.push(
+            onDidChangeEnvironmentEnvExt((event) => {
+                this.updateInterpreterForChange(event.uri).catch(() => undefined);
+            }),
+        );
+        this.disposables.push(
+            this.pythonServer.onCodeExecuted(() => {
+                if (this.pendingInterpreterChange) {
+                    const { resource } = this.pendingInterpreterChange;
+                    this.pendingInterpreterChange = undefined;
+                    this.updateInterpreterForChange(resource).catch(() => undefined);
+                }
+            }),
+        );
+    }
+
+    private async updateInterpreterForChange(resource?: Uri): Promise<void> {
+        if (this.pythonServer?.isExecuting) {
+            this.pendingInterpreterChange = { resource };
+            return;
+        }
+        if (!this.shouldApplyInterpreterChange(resource)) {
+            return;
+        }
+        const scope = resource ?? (this.cwd ? Uri.file(this.cwd) : undefined);
+        const interpreter = await getActiveInterpreterLegacy(scope);
+        if (!interpreter || interpreter.path === this.interpreter?.path) {
+            return;
+        }
+
+        this.interpreter = interpreter;
+        this.pythonServer.dispose();
+        this.pythonServer = createPythonServer([interpreter.path as string], this.cwd);
+        this.disposables.push(this.pythonServer);
+        if (this.replController) {
+            this.replController.dispose();
+        }
+        this.setReplController(true);
+
+        if (this.notebookDocument) {
+            const notebookEditor = await showNotebookDocument(this.notebookDocument, { preserveFocus: true });
+            await selectNotebookKernel(notebookEditor, this.replController.id, PVSC_EXTENSION_ID);
+        }
+    }
+
+    private shouldApplyInterpreterChange(resource?: Uri): boolean {
+        if (!resource || !this.cwd) {
+            return true;
+        }
+        const relative = path.relative(this.cwd, resource.fsPath);
+        return relative === '' || (!relative.startsWith('..') && !path.isAbsolute(relative));
+    }
+
     /**
      * Function that checks if native REPL's text input box contains complete code.
      * @returns Promise<boolean> - True if complete/Valid code is present, False otherwise.
diff --git a/src/client/repl/pythonServer.ts b/src/client/repl/pythonServer.ts
index 74e2d6ae7251..c4b1722b5079 100644
--- a/src/client/repl/pythonServer.ts
+++ b/src/client/repl/pythonServer.ts
@@ -16,6 +16,8 @@ export interface ExecutionResult {
 
 export interface PythonServer extends Disposable {
     onCodeExecuted: Event<void>;
+    readonly isExecuting: boolean;
+    readonly isDisposed: boolean;
     execute(code: string): Promise<ExecutionResult | undefined>;
     executeSilently(code: string): Promise<ExecutionResult | undefined>;
     interrupt(): void;
@@ -30,6 +32,18 @@ class PythonServerImpl implements PythonServer, Disposable {
 
     onCodeExecuted = this._onCodeExecuted.event;
 
+    private inFlightRequests = 0;
+
+    private disposed = false;
+
+    public get isExecuting(): boolean {
+        return this.inFlightRequests > 0;
+    }
+
+    public get isDisposed(): boolean {
+        return this.disposed;
+    }
+
     constructor(private connection: rpc.MessageConnection, private pythonServer: ch.ChildProcess) {
         this.initialize();
         this.input();
@@ -41,6 +55,14 @@ class PythonServerImpl implements PythonServer, Disposable {
                 traceLog('Log:', message);
             }),
         );
+        this.pythonServer.on('exit', (code) => {
+            traceError(`Python server exited with code ${code}`);
+            this.markDisposed();
+        });
+        this.pythonServer.on('error', (err) => {
+            traceError(err);
+            this.markDisposed();
+        });
         this.connection.listen();
     }
 
@@ -75,12 +97,15 @@ class PythonServerImpl implements PythonServer, Disposable {
     }
 
     private async executeCode(code: string): Promise<ExecutionResult | undefined> {
+        this.inFlightRequests += 1;
         try {
             const result = await this.connection.sendRequest('execute', code);
             return result as ExecutionResult;
         } catch (err) {
             const error = err as Error;
             traceError(`Error getting response from REPL server:`, error);
+        } finally {
+            this.inFlightRequests -= 1;
         }
         return undefined;
     }
@@ -93,39 +118,47 @@ class PythonServerImpl implements PythonServer, Disposable {
     }
 
     public async checkValidCommand(code: string): Promise<boolean> {
-        const completeCode: ExecutionResult = await this.connection.sendRequest('check_valid_command', code);
-        if (completeCode.output === 'True') {
-            return new Promise((resolve) => resolve(true));
+        this.inFlightRequests += 1;
+        try {
+            const completeCode: ExecutionResult = await this.connection.sendRequest('check_valid_command', code);
+            return completeCode.output === 'True';
+        } finally {
+            this.inFlightRequests -= 1;
         }
-        return new Promise((resolve) => resolve(false));
     }
 
     public dispose(): void {
+        if (this.disposed) {
+            return;
+        }
+        this.disposed = true;
         this.connection.sendNotification('exit');
         this.disposables.forEach((d) => d.dispose());
         this.connection.dispose();
         serverInstance = undefined;
     }
+
+    private markDisposed(): void {
+        if (this.disposed) {
+            return;
+        }
+        this.disposed = true;
+        this.connection.dispose();
+        serverInstance = undefined;
+    }
 }
 
 export function createPythonServer(interpreter: string[], cwd?: string): PythonServer {
-    if (serverInstance) {
+    if (serverInstance && !serverInstance.isDisposed) {
         return serverInstance;
     }
 
     const pythonServer = ch.spawn(interpreter[0], [...interpreter.slice(1), SERVER_PATH], {
         cwd, // Launch with correct workspace directory
     });
-
     pythonServer.stderr.on('data', (data) => {
         traceError(data.toString());
     });
-    pythonServer.on('exit', (code) => {
-        traceError(`Python server exited with code ${code}`);
-    });
-    pythonServer.on('error', (err) => {
-        traceError(err);
-    });
     const connection = rpc.createMessageConnection(
         new rpc.StreamMessageReader(pythonServer.stdout),
         new rpc.StreamMessageWriter(pythonServer.stdin),
diff --git a/src/client/repl/replCommands.ts b/src/client/repl/replCommands.ts
index 993a0cc91b19..1171e9466ee8 100644
--- a/src/client/repl/replCommands.ts
+++ b/src/client/repl/replCommands.ts
@@ -2,7 +2,6 @@ import { commands, Uri, window } from 'vscode';
 import { Disposable } from 'vscode-jsonrpc';
 import { ICommandManager } from '../common/application/types';
 import { Commands } from '../common/constants';
-import { noop } from '../common/utils/misc';
 import { IInterpreterService } from '../interpreter/contracts';
 import { ICodeExecutionHelper } from '../terminals/types';
 import { getNativeRepl } from './nativeRepl';
@@ -102,14 +101,13 @@ export async function registerReplExecuteOnEnter(
 }
 
 async function onInputEnter(
-    uri: Uri,
+    uri: Uri | undefined,
     commandName: string,
     interpreterService: IInterpreterService,
     disposables: Disposable[],
 ): Promise<void> {
-    const interpreter = await interpreterService.getActiveInterpreter(uri);
+    const interpreter = await getActiveInterpreter(uri, interpreterService);
     if (!interpreter) {
-        commands.executeCommand(Commands.TriggerEnvironmentSelection, uri).then(noop, noop);
         return;
     }
 
diff --git a/src/client/repl/replUtils.ts b/src/client/repl/replUtils.ts
index 8e23218c2870..93ae6f2a4573 100644
--- a/src/client/repl/replUtils.ts
+++ b/src/client/repl/replUtils.ts
@@ -66,12 +66,13 @@ export function isMultiLineText(textEditor: TextEditor): boolean {
  * Function will also return undefined or active interpreter
  */
 export async function getActiveInterpreter(
-    uri: Uri,
+    uri: Uri | undefined,
     interpreterService: IInterpreterService,
 ): Promise<PythonEnvironment | undefined> {
-    const interpreter = await interpreterService.getActiveInterpreter(uri);
+    const resource = uri ?? getActiveResource();
+    const interpreter = await interpreterService.getActiveInterpreter(resource);
     if (!interpreter) {
-        commands.executeCommand(Commands.TriggerEnvironmentSelection, uri).then(noop, noop);
+        commands.executeCommand(Commands.TriggerEnvironmentSelection, resource).then(noop, noop);
         return undefined;
     }
     return interpreter;
diff --git a/src/test/repl/nativeRepl.test.ts b/src/test/repl/nativeRepl.test.ts
index c05bb311a839..2cf18cefe1f7 100644
--- a/src/test/repl/nativeRepl.test.ts
+++ b/src/test/repl/nativeRepl.test.ts
@@ -129,6 +129,8 @@ suite('REPL - Native REPL', () => {
             input: sinon.stub(),
             checkValidCommand: sinon.stub().resolves(true),
             dispose: sinon.stub(),
+            isExecuting: false,
+            isDisposed: false,
         };
 
         // Track the number of times createPythonServer was called
diff --git a/src/test/repl/replCommand.test.ts b/src/test/repl/replCommand.test.ts
index 7c26ebd69c80..0b5edda863f9 100644
--- a/src/test/repl/replCommand.test.ts
+++ b/src/test/repl/replCommand.test.ts
@@ -1,6 +1,6 @@
 // Create test suite and test cases for the `replUtils` module
 import * as TypeMoq from 'typemoq';
-import { Disposable } from 'vscode';
+import { commands, Disposable, Uri } from 'vscode';
 import * as sinon from 'sinon';
 import { expect } from 'chai';
 import { IInterpreterService } from '../../client/interpreter/contracts';
@@ -9,6 +9,7 @@ import { ICodeExecutionHelper } from '../../client/terminals/types';
 import * as replCommands from '../../client/repl/replCommands';
 import * as replUtils from '../../client/repl/replUtils';
 import * as nativeRepl from '../../client/repl/nativeRepl';
+import * as windowApis from '../../client/common/vscodeApis/windowApis';
 import { Commands } from '../../client/common/constants';
 import { PythonEnvironment } from '../../client/pythonEnvironments/info';
 
@@ -203,3 +204,47 @@ suite('REPL - register native repl command', () => {
         sinon.assert.notCalled(getNativeReplStub);
     });
 });
+
+suite('Native REPL getActiveInterpreter', () => {
+    let interpreterService: TypeMoq.IMock<IInterpreterService>;
+    let executeCommandStub: sinon.SinonStub;
+    let getActiveResourceStub: sinon.SinonStub;
+
+    setup(() => {
+        interpreterService = TypeMoq.Mock.ofType<IInterpreterService>();
+        executeCommandStub = sinon.stub(commands, 'executeCommand').resolves(undefined);
+        getActiveResourceStub = sinon.stub(windowApis, 'getActiveResource');
+    });
+
+    teardown(() => {
+        sinon.restore();
+    });
+
+    test('Uses active resource when uri is undefined', async () => {
+        const resource = Uri.file('/workspace/app.py');
+        const expected = ({ path: 'ps' } as unknown) as PythonEnvironment;
+        getActiveResourceStub.returns(resource);
+        interpreterService
+            .setup((i) => i.getActiveInterpreter(TypeMoq.It.isValue(resource)))
+            .returns(() => Promise.resolve(expected));
+
+        const result = await replUtils.getActiveInterpreter(undefined, interpreterService.object);
+
+        expect(result).to.equal(expected);
+        interpreterService.verify((i) => i.getActiveInterpreter(TypeMoq.It.isValue(resource)), TypeMoq.Times.once());
+        sinon.assert.notCalled(executeCommandStub);
+    });
+
+    test('Triggers environment selection using active resource when interpreter is missing', async () => {
+        const resource = Uri.file('/workspace/app.py');
+        getActiveResourceStub.returns(resource);
+        interpreterService
+            .setup((i) => i.getActiveInterpreter(TypeMoq.It.isValue(resource)))
+            .returns(() => Promise.resolve(undefined));
+
+        const result = await replUtils.getActiveInterpreter(undefined, interpreterService.object);
+
+        expect(result).to.equal(undefined);
+        sinon.assert.calledWith(executeCommandStub, Commands.TriggerEnvironmentSelection, resource);
+    });
+});

From bd9b4122f19ba652bbd50f4c92630d26bd160ad5 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Fri, 6 Feb 2026 13:25:56 -0800
Subject: [PATCH 140/178] Add ai-artifacts to .gitignore to exclude generated
 files (#25770)

This adds a place within the github workspace that developers can store
any AI related artifacts they create that could be useful but they don't
want to commit. Things like issue summarization, plans for features,
code analysis etc
---
 .gitignore | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.gitignore b/.gitignore
index 1b47f15705bb..2fa056f84fa6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -54,3 +54,5 @@ python_files/tests/*/.data/.coverage*
 python_files/tests/*/.data/*/.coverage*
 src/testTestingRootWkspc/coverageWorkspace/.coverage
 
+# ignore ai artifacts generated and placed in this folder
+ai-artifacts/*

From f3a6dbe3dd56550679b2ccb960e706f831098ccf Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Tue, 10 Feb 2026 10:02:07 -0800
Subject: [PATCH 141/178] Refactor error handling to extract missing module
 names from error messages (#25785)

fixes https://github.com/microsoft/vscode-python/issues/25786
---
 .../testing/testController/common/utils.ts    | 37 +++++++-----
 .../common/buildErrorNodeOptions.unit.test.ts | 56 +++++++++++++++----
 2 files changed, 68 insertions(+), 25 deletions(-)

diff --git a/src/client/testing/testController/common/utils.ts b/src/client/testing/testController/common/utils.ts
index 606865e5ad7e..7c2a3da42696 100644
--- a/src/client/testing/testController/common/utils.ts
+++ b/src/client/testing/testController/common/utils.ts
@@ -175,27 +175,36 @@ export async function startDiscoveryNamedPipe(
 }
 
 /**
- * Detects if an error message indicates that pytest is not installed.
- * @param message The error message to check
- * @returns True if the error indicates pytest is not installed
+ * Extracts the missing module name from a ModuleNotFoundError or ImportError message.
+ * @param message The error message to parse
+ * @returns The module name if found, undefined otherwise
  */
-function isPytestNotInstalledError(message: string): boolean {
-    return (
-        (message.includes('ModuleNotFoundError') && message.includes('pytest')) ||
-        (message.includes('No module named') && message.includes('pytest')) ||
-        (message.includes('ImportError') && message.includes('pytest'))
-    );
+function extractMissingModuleName(message: string): string | undefined {
+    // Match patterns like:
+    // - No module named 'requests'
+    // - No module named "requests"
+    // - ModuleNotFoundError: No module named 'requests'
+    // - ImportError: No module named requests
+    const patterns = [/No module named ['"]([^'"]+)['"]/, /No module named (\S+)/];
+
+    for (const pattern of patterns) {
+        const match = message.match(pattern);
+        if (match) {
+            return match[1];
+        }
+    }
+    return undefined;
 }
 
 export function buildErrorNodeOptions(uri: Uri, message: string, testType: string): ErrorTestItemOptions {
     let labelText = testType === 'pytest' ? 'pytest Discovery Error' : 'Unittest Discovery Error';
     let errorMessage = message;
 
-    // Provide more specific error message if pytest is not installed
-    if (testType === 'pytest' && isPytestNotInstalledError(message)) {
-        labelText = 'pytest Not Installed';
-        errorMessage =
-            'pytest is not installed in the selected Python environment. Please install pytest to enable test discovery and execution.';
+    // Check for missing module errors and provide specific messaging
+    const missingModule = extractMissingModuleName(message);
+    if (missingModule) {
+        labelText = `Missing Module: ${missingModule}`;
+        errorMessage = `The module '${missingModule}' is not installed in the selected Python environment. Please install it to enable test discovery.`;
     }
 
     return {
diff --git a/src/test/testing/testController/common/buildErrorNodeOptions.unit.test.ts b/src/test/testing/testController/common/buildErrorNodeOptions.unit.test.ts
index cf41136db697..e2133f5c767b 100644
--- a/src/test/testing/testController/common/buildErrorNodeOptions.unit.test.ts
+++ b/src/test/testing/testController/common/buildErrorNodeOptions.unit.test.ts
@@ -5,33 +5,56 @@ import { expect } from 'chai';
 import { Uri } from 'vscode';
 import { buildErrorNodeOptions } from '../../../../client/testing/testController/common/utils';
 
-suite('buildErrorNodeOptions - pytest not installed detection', () => {
+suite('buildErrorNodeOptions - missing module detection', () => {
     const workspaceUri = Uri.file('/test/workspace');
 
-    test('Should detect pytest ModuleNotFoundError and provide specific message', () => {
+    test('Should detect pytest ModuleNotFoundError and show missing module label', () => {
         const errorMessage =
             'Traceback (most recent call last):\n  File "<string>", line 1, in <module>\n    import pytest\nModuleNotFoundError: No module named \'pytest\'';
 
         const result = buildErrorNodeOptions(workspaceUri, errorMessage, 'pytest');
 
-        expect(result.label).to.equal('pytest Not Installed [workspace]');
+        expect(result.label).to.equal('Missing Module: pytest [workspace]');
         expect(result.error).to.equal(
-            'pytest is not installed in the selected Python environment. Please install pytest to enable test discovery and execution.',
+            "The module 'pytest' is not installed in the selected Python environment. Please install it to enable test discovery.",
         );
     });
 
-    test('Should detect pytest ImportError and provide specific message', () => {
+    test('Should detect pytest ImportError and show missing module label', () => {
         const errorMessage = 'ImportError: No module named pytest';
 
         const result = buildErrorNodeOptions(workspaceUri, errorMessage, 'pytest');
 
-        expect(result.label).to.equal('pytest Not Installed [workspace]');
+        expect(result.label).to.equal('Missing Module: pytest [workspace]');
         expect(result.error).to.equal(
-            'pytest is not installed in the selected Python environment. Please install pytest to enable test discovery and execution.',
+            "The module 'pytest' is not installed in the selected Python environment. Please install it to enable test discovery.",
         );
     });
 
-    test('Should use generic error for non-pytest-related errors', () => {
+    test('Should detect other missing modules and show module name in label', () => {
+        const errorMessage =
+            "bob\\test_bob.py:3: in <module>\n    import requests\nE   ModuleNotFoundError: No module named 'requests'\n=========================== short test summary info";
+
+        const result = buildErrorNodeOptions(workspaceUri, errorMessage, 'pytest');
+
+        expect(result.label).to.equal('Missing Module: requests [workspace]');
+        expect(result.error).to.equal(
+            "The module 'requests' is not installed in the selected Python environment. Please install it to enable test discovery.",
+        );
+    });
+
+    test('Should detect missing module with double quotes', () => {
+        const errorMessage = 'ModuleNotFoundError: No module named "numpy"';
+
+        const result = buildErrorNodeOptions(workspaceUri, errorMessage, 'pytest');
+
+        expect(result.label).to.equal('Missing Module: numpy [workspace]');
+        expect(result.error).to.equal(
+            "The module 'numpy' is not installed in the selected Python environment. Please install it to enable test discovery.",
+        );
+    });
+
+    test('Should use generic error for non-module-related errors', () => {
         const errorMessage = 'Some other error occurred';
 
         const result = buildErrorNodeOptions(workspaceUri, errorMessage, 'pytest');
@@ -40,12 +63,23 @@ suite('buildErrorNodeOptions - pytest not installed detection', () => {
         expect(result.error).to.equal('Some other error occurred');
     });
 
-    test('Should use generic error for unittest errors', () => {
-        const errorMessage = "ModuleNotFoundError: No module named 'pytest'";
+    test('Should detect missing module for unittest errors', () => {
+        const errorMessage = "ModuleNotFoundError: No module named 'pandas'";
+
+        const result = buildErrorNodeOptions(workspaceUri, errorMessage, 'unittest');
+
+        expect(result.label).to.equal('Missing Module: pandas [workspace]');
+        expect(result.error).to.equal(
+            "The module 'pandas' is not installed in the selected Python environment. Please install it to enable test discovery.",
+        );
+    });
+
+    test('Should use generic error for unittest non-module errors', () => {
+        const errorMessage = 'Some other error occurred';
 
         const result = buildErrorNodeOptions(workspaceUri, errorMessage, 'unittest');
 
         expect(result.label).to.equal('Unittest Discovery Error [workspace]');
-        expect(result.error).to.equal("ModuleNotFoundError: No module named 'pytest'");
+        expect(result.error).to.equal('Some other error occurred');
     });
 });

From 85d920203a275d2d1a90a503bddb83b8f74999c9 Mon Sep 17 00:00:00 2001
From: Anthony Kim <62267334+anthonykim1@users.noreply.github.com>
Date: Tue, 10 Feb 2026 10:18:16 -0800
Subject: [PATCH 142/178] Fix env var warning description (#25758)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Resolves: https://github.com/microsoft/vscode-python/issues/25733

Now description show when contributing.. but not when deleting? See
below
<img width="679" height="591" alt="Screenshot 2026-02-02 at 4 26 05 PM"
src="https://github.com/user-attachments/assets/f98b91bb-75ae-4c64-9644-34635f389408"
/>
---
 src/client/common/utils/localize.ts   |  6 ++++++
 src/client/terminals/pythonStartup.ts | 11 +++++++++--
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/src/client/common/utils/localize.ts b/src/client/common/utils/localize.ts
index a084fc647025..d108dfddb54b 100644
--- a/src/client/common/utils/localize.ts
+++ b/src/client/common/utils/localize.ts
@@ -199,6 +199,12 @@ export namespace Interpreters {
     export const terminalEnvVarCollectionPrompt = l10n.t(
         '{0} environment was successfully activated, even though {1} indicator may not be present in the terminal prompt. [Learn more](https://aka.ms/vscodePythonTerminalActivation).',
     );
+    export const shellIntegrationEnvVarCollectionDescription = l10n.t(
+        'Enables `python.terminal.shellIntegration.enabled` by modifying `PYTHONSTARTUP` and `PYTHON_BASIC_REPL`',
+    );
+    export const shellIntegrationDisabledEnvVarCollectionDescription = l10n.t(
+        'Disables `python.terminal.shellIntegration.enabled` by unsetting `PYTHONSTARTUP` and `PYTHON_BASIC_REPL`',
+    );
     export const terminalDeactivateProgress = l10n.t('Editing {0}...');
     export const restartingTerminal = l10n.t('Restarting terminal and deactivating...');
     export const terminalDeactivatePrompt = l10n.t(
diff --git a/src/client/terminals/pythonStartup.ts b/src/client/terminals/pythonStartup.ts
index f0c3bf89c3b4..b6f68c860b46 100644
--- a/src/client/terminals/pythonStartup.ts
+++ b/src/client/terminals/pythonStartup.ts
@@ -1,10 +1,11 @@
 // Copyright (c) Microsoft Corporation. All rights reserved.
 // Licensed under the MIT License.
 
-import { ExtensionContext, Uri } from 'vscode';
+import { ExtensionContext, MarkdownString, Uri } from 'vscode';
 import * as path from 'path';
 import { copy, createDirectory, getConfiguration, onDidChangeConfiguration } from '../common/vscodeApis/workspaceApis';
 import { EXTENSION_ROOT_DIR } from '../constants';
+import { Interpreters } from '../common/utils/localize';
 
 async function applyPythonStartupSetting(context: ExtensionContext): Promise<void> {
     const config = getConfiguration('python');
@@ -21,11 +22,17 @@ async function applyPythonStartupSetting(context: ExtensionContext): Promise<voi
         const sourcePath = path.join(EXTENSION_ROOT_DIR, 'python_files', 'pythonrc.py');
         await copy(Uri.file(sourcePath), destPath, { overwrite: true });
         context.environmentVariableCollection.replace('PYTHONSTARTUP', destPath.fsPath);
-        // When shell integration is  enabled, we disable PyREPL from cpython.
+        // When shell integration is enabled, we disable PyREPL from cpython.
         context.environmentVariableCollection.replace('PYTHON_BASIC_REPL', '1');
+        context.environmentVariableCollection.description = new MarkdownString(
+            Interpreters.shellIntegrationEnvVarCollectionDescription,
+        );
     } else {
         context.environmentVariableCollection.delete('PYTHONSTARTUP');
         context.environmentVariableCollection.delete('PYTHON_BASIC_REPL');
+        context.environmentVariableCollection.description = new MarkdownString(
+            Interpreters.shellIntegrationDisabledEnvVarCollectionDescription,
+        );
     }
 }
 

From 502ad7021b59c98b40351863faf1d41a57d7e251 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Tue, 10 Feb 2026 13:05:50 -0800
Subject: [PATCH 143/178] Add support for Projects in Testing  (#25780)

fixes https://github.com/microsoft/vscode-python-environments/issues/987

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
---
 .../testing-workflow.instructions.md          |   1 +
 .../testing_feature_area.instructions.md      |  76 ++
 .github/workflows/pr-check.yml                |   2 +
 .../expected_discovery_test_output.py         | 211 +++++
 .../tests/pytestadapter/test_discovery.py     |  94 +++
 .../tests/unittestadapter/test_discovery.py   | 120 +++
 .../tests/unittestadapter/test_execution.py   | 131 ++++
 python_files/unittestadapter/discovery.py     |  26 +-
 python_files/unittestadapter/execution.py     |  35 +-
 python_files/vscode_pytest/__init__.py        |  42 +-
 src/client/testing/common/debugLauncher.ts    | 143 +++-
 src/client/testing/common/types.ts            |   3 +
 .../testController/common/projectAdapter.ts   |  88 +++
 .../common/projectTestExecution.ts            | 296 +++++++
 .../testController/common/projectUtils.ts     |  91 +++
 .../testController/common/resultResolver.ts   |  35 +-
 .../common/testDiscoveryHandler.ts            |  49 +-
 .../common/testProjectRegistry.ts             | 330 ++++++++
 .../testing/testController/common/types.ts    |  13 +-
 .../testing/testController/common/utils.ts    |  45 +-
 .../testing/testController/controller.ts      | 497 ++++++++++--
 .../pytest/pytestDiscoveryAdapter.ts          |  21 +-
 .../pytest/pytestExecutionAdapter.ts          |  18 +-
 .../unittest/testDiscoveryAdapter.ts          |  12 +-
 .../unittest/testExecutionAdapter.ts          |  19 +-
 .../testController/workspaceTestAdapter.ts    |   3 +
 .../testing/common/debugLauncher.unit.test.ts | 276 ++++++-
 .../common/buildErrorNodeOptions.unit.test.ts |  26 +
 .../common/projectTestExecution.unit.test.ts  | 740 ++++++++++++++++++
 .../common/projectUtils.unit.test.ts          | 241 ++++++
 .../common/testProjectRegistry.unit.test.ts   | 440 +++++++++++
 .../testController/controller.unit.test.ts    | 344 ++++++++
 .../pytestExecutionAdapter.unit.test.ts       | 207 +++++
 src/test/testing/testController/testMocks.ts  | 152 ++++
 .../testDiscoveryAdapter.unit.test.ts         |  95 +++
 .../testExecutionAdapter.unit.test.ts         | 257 ++++++
 .../testing/testController/utils.unit.test.ts |  21 +-
 src/test/vscode-mock.ts                       |  27 +
 38 files changed, 5052 insertions(+), 175 deletions(-)
 create mode 100644 src/client/testing/testController/common/projectAdapter.ts
 create mode 100644 src/client/testing/testController/common/projectTestExecution.ts
 create mode 100644 src/client/testing/testController/common/projectUtils.ts
 create mode 100644 src/client/testing/testController/common/testProjectRegistry.ts
 create mode 100644 src/test/testing/testController/common/projectTestExecution.unit.test.ts
 create mode 100644 src/test/testing/testController/common/projectUtils.unit.test.ts
 create mode 100644 src/test/testing/testController/common/testProjectRegistry.unit.test.ts
 create mode 100644 src/test/testing/testController/controller.unit.test.ts
 create mode 100644 src/test/testing/testController/testMocks.ts

diff --git a/.github/instructions/testing-workflow.instructions.md b/.github/instructions/testing-workflow.instructions.md
index 948886a59635..844946404328 100644
--- a/.github/instructions/testing-workflow.instructions.md
+++ b/.github/instructions/testing-workflow.instructions.md
@@ -578,3 +578,4 @@ envConfig.inspect
 -   When mocking `testController.createTestItem()` in unit tests, use `typemoq.It.isAny()` for parameters when testing handler behavior (not ID/label generation logic), but consider using specific matchers (e.g., `It.is((id: string) => id.startsWith('_error_'))`) when the actual values being passed are important for correctness - this balances test precision with maintainability (2)
 -   Remove unused variables from test code immediately - leftover tracking variables like `validationCallCount` that aren't referenced indicate dead code that should be simplified (1)
 -   Use `Uri.file(path).fsPath` for both sides of path comparisons in tests to ensure cross-platform compatibility - Windows converts forward slashes to backslashes automatically (1)
+-   When tests fail with "Cannot stub non-existent property", the method likely moved to a different class during refactoring - find the class that owns the method and test that class directly instead of stubbing on the original class (1)
diff --git a/.github/instructions/testing_feature_area.instructions.md b/.github/instructions/testing_feature_area.instructions.md
index 038dc1025ea5..a4e11523d7c8 100644
--- a/.github/instructions/testing_feature_area.instructions.md
+++ b/.github/instructions/testing_feature_area.instructions.md
@@ -26,6 +26,10 @@ This document maps the testing support in the extension: discovery, execution (r
     -   `src/client/testing/serviceRegistry.ts` — DI/wiring for testing services.
 -   Workspace orchestration
     -   `src/client/testing/testController/workspaceTestAdapter.ts` — `WorkspaceTestAdapter` (provider-agnostic entry used by controller).
+-   **Project-based testing (multi-project workspaces)**
+    -   `src/client/testing/testController/common/testProjectRegistry.ts` — `TestProjectRegistry` (manages project lifecycle, discovery, and nested project handling).
+    -   `src/client/testing/testController/common/projectAdapter.ts` — `ProjectAdapter` interface (represents a single Python project with its own test infrastructure).
+    -   `src/client/testing/testController/common/projectUtils.ts` — utilities for project ID generation, display names, and shared adapter creation.
 -   Provider adapters
     -   Unittest
         -   `src/client/testing/testController/unittest/testDiscoveryAdapter.ts`
@@ -151,6 +155,78 @@ The adapters in the extension don't implement test discovery/run logic themselve
     -   Settings are consumed by `src/client/testing/common/testConfigurationManager.ts`, `src/client/testing/configurationFactory.ts`, and adapters under `src/client/testing/testController/*` which read settings to build CLI args and env for subprocesses.
     -   The setting definitions and descriptions are in `package.json` and localized strings in `package.nls.json`.
 
+## Project-based testing (multi-project workspaces)
+
+Project-based testing enables multi-project workspace support where each Python project gets its own test tree root with its own Python environment.
+
+### Architecture
+
+-   **TestProjectRegistry** (`testProjectRegistry.ts`): Central registry that:
+
+    -   Discovers Python projects via the Python Environments API
+    -   Creates and manages `ProjectAdapter` instances per workspace
+    -   Computes nested project relationships and configures ignore lists
+    -   Falls back to "legacy" single-adapter mode when API unavailable
+
+-   **ProjectAdapter** (`projectAdapter.ts`): Interface representing a single project with:
+    -   Project identity (ID, name, URI from Python Environments API)
+    -   Python environment with execution details
+    -   Test framework adapters (discovery/execution)
+    -   Nested project ignore paths (for parent projects)
+
+### How it works
+
+1. **Activation**: When the extension activates, `PythonTestController` checks if the Python Environments API is available.
+2. **Project discovery**: `TestProjectRegistry.discoverAndRegisterProjects()` queries the API for all Python projects in each workspace.
+3. **Nested handling**: `configureNestedProjectIgnores()` identifies child projects and adds their paths to parent projects' ignore lists.
+4. **Test discovery**: For each project, the controller calls `project.discoveryAdapter.discoverTests()` with the project's URI. The adapter sets `PROJECT_ROOT_PATH` environment variable for the Python runner.
+5. **Python side**:
+    - For pytest: `get_test_root_path()` in `vscode_pytest/__init__.py` returns `PROJECT_ROOT_PATH` (if set) or falls back to `cwd`.
+    - For unittest: `discovery.py` uses `PROJECT_ROOT_PATH` as `top_level_dir` and `project_root_path` to root the test tree at the project directory.
+6. **Test tree**: Each project gets its own root node in the Test Explorer, with test IDs scoped by project ID using the `@@vsc@@` separator (defined in `projectUtils.ts`).
+
+### Nested project handling: pytest vs unittest
+
+**pytest** supports the `--ignore` flag to exclude paths during test collection. When nested projects are detected, parent projects automatically receive `--ignore` flags for child project paths. This ensures each test appears under exactly one project in the test tree.
+
+**unittest** does not support path exclusion during `discover()`. Therefore, tests in nested project directories may appear under multiple project roots (both the parent and the child project). This is **expected behavior** for unittest:
+
+-   Each project discovers and displays all tests it finds within its directory structure
+-   There is no deduplication or collision detection
+-   Users may see the same test file under multiple project roots if their project structure has nesting
+
+This approach was chosen because:
+
+1. unittest's `TestLoader.discover()` has no built-in path exclusion mechanism
+2. Implementing custom exclusion would add significant complexity with minimal benefit
+3. The existing approach is transparent and predictable - each project shows what it finds
+
+### Empty projects and root nodes
+
+If a project discovers zero tests, its root node will still appear in the Test Explorer as an empty folder. This ensures consistent behavior and makes it clear which projects were discovered, even if they have no tests yet.
+
+### Logging prefix
+
+All project-based testing logs use the `[test-by-project]` prefix for easy filtering in the output channel.
+
+### Key files
+
+-   Python side:
+    -   `python_files/vscode_pytest/__init__.py` — `get_test_root_path()` function and `PROJECT_ROOT_PATH` environment variable for pytest.
+    -   `python_files/unittestadapter/discovery.py` — `discover_tests()` with `project_root_path` parameter and `PROJECT_ROOT_PATH` handling for unittest discovery.
+    -   `python_files/unittestadapter/execution.py` — `run_tests()` with `project_root_path` parameter and `PROJECT_ROOT_PATH` handling for unittest execution.
+-   TypeScript: `testProjectRegistry.ts`, `projectAdapter.ts`, `projectUtils.ts`, and the discovery/execution adapters.
+
+### Tests
+
+-   `src/test/testing/testController/common/testProjectRegistry.unit.test.ts` — TestProjectRegistry tests
+-   `src/test/testing/testController/common/projectUtils.unit.test.ts` — Project utility function tests
+-   `python_files/tests/pytestadapter/test_discovery.py` — pytest PROJECT_ROOT_PATH tests (see `test_project_root_path_env_var()` and `test_symlink_with_project_root_path()`)
+-   `python_files/tests/unittestadapter/test_discovery.py` — unittest `project_root_path` / PROJECT_ROOT_PATH discovery tests
+-   `python_files/tests/unittestadapter/test_execution.py` — unittest `project_root_path` / PROJECT_ROOT_PATH execution tests
+-   `src/test/testing/testController/unittest/testDiscoveryAdapter.unit.test.ts` — unittest discovery adapter PROJECT_ROOT_PATH tests
+-   `src/test/testing/testController/unittest/testExecutionAdapter.unit.test.ts` — unittest execution adapter PROJECT_ROOT_PATH tests
+
 ## Coverage support (how it works)
 
 -   Coverage is supported by running the Python helper scripts with coverage enabled and then collecting a coverage payload from the runner.
diff --git a/.github/workflows/pr-check.yml b/.github/workflows/pr-check.yml
index d7d8d3869505..95024788d915 100644
--- a/.github/workflows/pr-check.yml
+++ b/.github/workflows/pr-check.yml
@@ -477,6 +477,8 @@ jobs:
   ### Coverage run
   coverage:
     name: Coverage
+    # TEMPORARILY DISABLED - hanging in CI, needs investigation
+    if: false
     # The value of runs-on is the OS of the current job (specified in the strategy matrix below) instead of being hardcoded.
     runs-on: ${{ matrix.os }}
     needs: [lint, check-types, python-tests, tests, native-tests]
diff --git a/python_files/tests/pytestadapter/expected_discovery_test_output.py b/python_files/tests/pytestadapter/expected_discovery_test_output.py
index b6f0779cf982..047f1c72ad17 100644
--- a/python_files/tests/pytestadapter/expected_discovery_test_output.py
+++ b/python_files/tests/pytestadapter/expected_discovery_test_output.py
@@ -1870,3 +1870,214 @@
     ],
     "id_": TEST_DATA_PATH_STR,
 }
+
+# =====================================================================================
+# PROJECT_ROOT_PATH environment variable tests
+# These test the project-based testing feature where PROJECT_ROOT_PATH changes
+# the test tree root from cwd to the specified project path.
+# =====================================================================================
+
+# This is the expected output for unittest_folder when PROJECT_ROOT_PATH is set to unittest_folder.
+# The root of the tree is unittest_folder (not .data), simulating project-based testing.
+#
+# **Project Configuration:**
+# In the VS Code Python extension, projects are defined by the Python Environments extension.
+# Each project has a root directory (identified by pyproject.toml, setup.py, etc.).
+# When PROJECT_ROOT_PATH is set, pytest uses that path as the test tree root instead of cwd.
+#
+# **Test Tree Structure:**
+# Without PROJECT_ROOT_PATH (legacy mode):
+#   └── .data (cwd = workspace root)
+#       └── unittest_folder
+#           └── test_add.py, test_subtract.py...
+#
+# With PROJECT_ROOT_PATH set to unittest_folder (project-based mode):
+#   └── unittest_folder (ROOT - set via PROJECT_ROOT_PATH env var)
+#       ├── test_add.py
+#       │   └── TestAddFunction
+#       │       ├── test_add_negative_numbers
+#       │       └── test_add_positive_numbers
+#       │   └── TestDuplicateFunction
+#       │       └── test_dup_a
+#       └── test_subtract.py
+#           └── TestSubtractFunction
+#               ├── test_subtract_negative_numbers
+#               └── test_subtract_positive_numbers
+#           └── TestDuplicateFunction
+#               └── test_dup_s
+#
+# Note: This reuses the unittest_folder paths defined earlier in this file.
+project_root_unittest_folder_expected_output = {
+    "name": "unittest_folder",
+    "path": os.fspath(unittest_folder_path),
+    "type_": "folder",
+    "children": [
+        {
+            "name": "test_add.py",
+            "path": os.fspath(test_add_path),
+            "type_": "file",
+            "id_": os.fspath(test_add_path),
+            "children": [
+                {
+                    "name": "TestAddFunction",
+                    "path": os.fspath(test_add_path),
+                    "type_": "class",
+                    "children": [
+                        {
+                            "name": "test_add_negative_numbers",
+                            "path": os.fspath(test_add_path),
+                            "lineno": find_test_line_number(
+                                "test_add_negative_numbers",
+                                os.fspath(test_add_path),
+                            ),
+                            "type_": "test",
+                            "id_": get_absolute_test_id(
+                                "test_add.py::TestAddFunction::test_add_negative_numbers",
+                                test_add_path,
+                            ),
+                            "runID": get_absolute_test_id(
+                                "test_add.py::TestAddFunction::test_add_negative_numbers",
+                                test_add_path,
+                            ),
+                        },
+                        {
+                            "name": "test_add_positive_numbers",
+                            "path": os.fspath(test_add_path),
+                            "lineno": find_test_line_number(
+                                "test_add_positive_numbers",
+                                os.fspath(test_add_path),
+                            ),
+                            "type_": "test",
+                            "id_": get_absolute_test_id(
+                                "test_add.py::TestAddFunction::test_add_positive_numbers",
+                                test_add_path,
+                            ),
+                            "runID": get_absolute_test_id(
+                                "test_add.py::TestAddFunction::test_add_positive_numbers",
+                                test_add_path,
+                            ),
+                        },
+                    ],
+                    "id_": get_absolute_test_id(
+                        "test_add.py::TestAddFunction",
+                        test_add_path,
+                    ),
+                    "lineno": find_class_line_number("TestAddFunction", test_add_path),
+                },
+                {
+                    "name": "TestDuplicateFunction",
+                    "path": os.fspath(test_add_path),
+                    "type_": "class",
+                    "children": [
+                        {
+                            "name": "test_dup_a",
+                            "path": os.fspath(test_add_path),
+                            "lineno": find_test_line_number(
+                                "test_dup_a",
+                                os.fspath(test_add_path),
+                            ),
+                            "type_": "test",
+                            "id_": get_absolute_test_id(
+                                "test_add.py::TestDuplicateFunction::test_dup_a",
+                                test_add_path,
+                            ),
+                            "runID": get_absolute_test_id(
+                                "test_add.py::TestDuplicateFunction::test_dup_a",
+                                test_add_path,
+                            ),
+                        },
+                    ],
+                    "id_": get_absolute_test_id(
+                        "test_add.py::TestDuplicateFunction",
+                        test_add_path,
+                    ),
+                    "lineno": find_class_line_number("TestDuplicateFunction", test_add_path),
+                },
+            ],
+        },
+        {
+            "name": "test_subtract.py",
+            "path": os.fspath(test_subtract_path),
+            "type_": "file",
+            "id_": os.fspath(test_subtract_path),
+            "children": [
+                {
+                    "name": "TestSubtractFunction",
+                    "path": os.fspath(test_subtract_path),
+                    "type_": "class",
+                    "children": [
+                        {
+                            "name": "test_subtract_negative_numbers",
+                            "path": os.fspath(test_subtract_path),
+                            "lineno": find_test_line_number(
+                                "test_subtract_negative_numbers",
+                                os.fspath(test_subtract_path),
+                            ),
+                            "type_": "test",
+                            "id_": get_absolute_test_id(
+                                "test_subtract.py::TestSubtractFunction::test_subtract_negative_numbers",
+                                test_subtract_path,
+                            ),
+                            "runID": get_absolute_test_id(
+                                "test_subtract.py::TestSubtractFunction::test_subtract_negative_numbers",
+                                test_subtract_path,
+                            ),
+                        },
+                        {
+                            "name": "test_subtract_positive_numbers",
+                            "path": os.fspath(test_subtract_path),
+                            "lineno": find_test_line_number(
+                                "test_subtract_positive_numbers",
+                                os.fspath(test_subtract_path),
+                            ),
+                            "type_": "test",
+                            "id_": get_absolute_test_id(
+                                "test_subtract.py::TestSubtractFunction::test_subtract_positive_numbers",
+                                test_subtract_path,
+                            ),
+                            "runID": get_absolute_test_id(
+                                "test_subtract.py::TestSubtractFunction::test_subtract_positive_numbers",
+                                test_subtract_path,
+                            ),
+                        },
+                    ],
+                    "id_": get_absolute_test_id(
+                        "test_subtract.py::TestSubtractFunction",
+                        test_subtract_path,
+                    ),
+                    "lineno": find_class_line_number("TestSubtractFunction", test_subtract_path),
+                },
+                {
+                    "name": "TestDuplicateFunction",
+                    "path": os.fspath(test_subtract_path),
+                    "type_": "class",
+                    "children": [
+                        {
+                            "name": "test_dup_s",
+                            "path": os.fspath(test_subtract_path),
+                            "lineno": find_test_line_number(
+                                "test_dup_s",
+                                os.fspath(test_subtract_path),
+                            ),
+                            "type_": "test",
+                            "id_": get_absolute_test_id(
+                                "test_subtract.py::TestDuplicateFunction::test_dup_s",
+                                test_subtract_path,
+                            ),
+                            "runID": get_absolute_test_id(
+                                "test_subtract.py::TestDuplicateFunction::test_dup_s",
+                                test_subtract_path,
+                            ),
+                        },
+                    ],
+                    "id_": get_absolute_test_id(
+                        "test_subtract.py::TestDuplicateFunction",
+                        test_subtract_path,
+                    ),
+                    "lineno": find_class_line_number("TestDuplicateFunction", test_subtract_path),
+                },
+            ],
+        },
+    ],
+    "id_": os.fspath(unittest_folder_path),
+}
diff --git a/python_files/tests/pytestadapter/test_discovery.py b/python_files/tests/pytestadapter/test_discovery.py
index 842ee3c7c707..cf777399fed9 100644
--- a/python_files/tests/pytestadapter/test_discovery.py
+++ b/python_files/tests/pytestadapter/test_discovery.py
@@ -386,3 +386,97 @@ def test_plugin_collect(file, expected_const, extra_arg):
         ), (
             f"Tests tree does not match expected value. \n Expected: {json.dumps(expected_const, indent=4)}. \n Actual: {json.dumps(actual_item.get('tests'), indent=4)}"
         )
+
+
+def test_project_root_path_env_var():
+    """Test pytest discovery with PROJECT_ROOT_PATH environment variable set.
+
+    This simulates project-based testing where the test tree root should be
+    the project root (PROJECT_ROOT_PATH) rather than the workspace cwd.
+
+    When PROJECT_ROOT_PATH is set:
+    - The test tree root (name, path, id_) should match PROJECT_ROOT_PATH
+    - The cwd in the response should match PROJECT_ROOT_PATH
+    - Test files should be direct children of the root (not nested under a subfolder)
+    """
+    # Use unittest_folder as our "project" subdirectory
+    project_path = helpers.TEST_DATA_PATH / "unittest_folder"
+
+    actual = helpers.runner_with_cwd_env(
+        [os.fspath(project_path), "--collect-only"],
+        helpers.TEST_DATA_PATH,  # cwd is parent of project
+        {"PROJECT_ROOT_PATH": os.fspath(project_path)},  # Set project root
+    )
+
+    assert actual
+    actual_list: List[Dict[str, Any]] = actual
+    if actual_list is not None:
+        actual_item = actual_list.pop(0)
+
+        assert all(item in actual_item for item in ("status", "cwd", "error"))
+        assert actual_item.get("status") == "success", (
+            f"Status is not 'success', error is: {actual_item.get('error')}"
+        )
+        # cwd in response should be PROJECT_ROOT_PATH
+        assert actual_item.get("cwd") == os.fspath(project_path), (
+            f"Expected cwd '{os.fspath(project_path)}', got '{actual_item.get('cwd')}'"
+        )
+        assert is_same_tree(
+            actual_item.get("tests"),
+            expected_discovery_test_output.project_root_unittest_folder_expected_output,
+            ["id_", "lineno", "name", "runID"],
+        ), (
+            f"Tests tree does not match expected value. \n Expected: {json.dumps(expected_discovery_test_output.project_root_unittest_folder_expected_output, indent=4)}. \n Actual: {json.dumps(actual_item.get('tests'), indent=4)}"
+        )
+
+
+@pytest.mark.skipif(
+    sys.platform == "win32",
+    reason="Symlinks require elevated privileges on Windows",
+)
+def test_symlink_with_project_root_path():
+    """Test pytest discovery with both symlink and PROJECT_ROOT_PATH set.
+
+    This tests the combination of:
+    1. A symlinked test directory (--rootdir points to symlink)
+    2. PROJECT_ROOT_PATH set to the symlink path
+
+    This simulates project-based testing where the project root is a symlink,
+    ensuring test IDs and paths are correctly resolved through the symlink.
+    """
+    with helpers.create_symlink(helpers.TEST_DATA_PATH, "root", "symlink_folder") as (
+        source,
+        destination,
+    ):
+        assert destination.is_symlink()
+
+        # Run pytest with:
+        # - cwd being the resolved symlink path (simulating subprocess from node)
+        # - PROJECT_ROOT_PATH set to the symlink destination
+        actual = helpers.runner_with_cwd_env(
+            ["--collect-only", f"--rootdir={os.fspath(destination)}"],
+            source,  # cwd is the resolved (non-symlink) path
+            {"PROJECT_ROOT_PATH": os.fspath(destination)},  # Project root is the symlink
+        )
+
+        expected = expected_discovery_test_output.symlink_expected_discovery_output
+        assert actual
+        actual_list: List[Dict[str, Any]] = actual
+        if actual_list is not None:
+            actual_item = actual_list.pop(0)
+            try:
+                assert all(item in actual_item for item in ("status", "cwd", "error")), (
+                    "Required keys are missing"
+                )
+                assert actual_item.get("status") == "success", (
+                    f"Status is not 'success', error is: {actual_item.get('error')}"
+                )
+                # cwd should be the PROJECT_ROOT_PATH (the symlink destination)
+                assert actual_item.get("cwd") == os.fspath(destination), (
+                    f"CWD does not match symlink path: expected {os.fspath(destination)}, got {actual_item.get('cwd')}"
+                )
+                assert actual_item.get("tests") == expected, "Tests do not match expected value"
+            except AssertionError as e:
+                # Print the actual_item in JSON format if an assertion fails
+                print(json.dumps(actual_item, indent=4))
+                pytest.fail(str(e))
diff --git a/python_files/tests/unittestadapter/test_discovery.py b/python_files/tests/unittestadapter/test_discovery.py
index a10b5c406680..ab028ef176c3 100644
--- a/python_files/tests/unittestadapter/test_discovery.py
+++ b/python_files/tests/unittestadapter/test_discovery.py
@@ -325,3 +325,123 @@ def test_simple_django_collect():
         assert (
             len(actual_item["tests"]["children"][0]["children"][0]["children"][0]["children"]) == 3
         )
+
+
+def test_project_root_path_with_cwd_override() -> None:
+    """Test unittest discovery with project_root_path parameter.
+
+    This simulates project-based testing where the cwd in the payload should be
+    the project root (project_root_path) rather than the start_dir.
+
+    When project_root_path is provided:
+    - The cwd in the response should match project_root_path
+    - The test tree root should still be built correctly based on top_level_dir
+    """
+    # Use unittest_skip folder as our "project" directory
+    project_path = TEST_DATA_PATH / "unittest_skip"
+    start_dir = os.fsdecode(project_path)
+    pattern = "unittest_*"
+
+    # Call discover_tests with project_root_path to simulate PROJECT_ROOT_PATH
+    actual = discover_tests(start_dir, pattern, None, project_root_path=start_dir)
+
+    assert actual["status"] == "success"
+    # cwd in response should match the project_root_path (project root)
+    assert actual["cwd"] == os.fsdecode(project_path), (
+        f"Expected cwd '{os.fsdecode(project_path)}', got '{actual['cwd']}'"
+    )
+    assert "tests" in actual
+    # Verify the test tree structure matches expected output
+    assert is_same_tree(
+        actual.get("tests"),
+        expected_discovery_test_output.skip_unittest_folder_discovery_output,
+        ["id_", "lineno", "name"],
+    )
+    assert "error" not in actual
+
+
+def test_project_root_path_with_different_cwd_and_start_dir() -> None:
+    """Test unittest discovery where project_root_path differs from start_dir.
+
+    This simulates the scenario where:
+    - start_dir points to a subfolder where tests are located
+    - project_root_path (PROJECT_ROOT_PATH) points to the project root
+
+    The cwd in the response should be the project root, while discovery
+    still runs from the start_dir.
+    """
+    # Use utils_complex_tree as our test case - discovery from a subfolder
+    project_path = TEST_DATA_PATH / "utils_complex_tree"
+    start_dir = os.fsdecode(
+        pathlib.PurePath(
+            TEST_DATA_PATH,
+            "utils_complex_tree",
+            "test_outer_folder",
+            "test_inner_folder",
+        )
+    )
+    pattern = "test_*.py"
+    top_level_dir = os.fsdecode(project_path)
+
+    # Call discover_tests with project_root_path set to project root
+    actual = discover_tests(start_dir, pattern, top_level_dir, project_root_path=top_level_dir)
+
+    assert actual["status"] == "success"
+    # cwd should be the project root (project_root_path), not the start_dir
+    assert actual["cwd"] == os.fsdecode(project_path), (
+        f"Expected cwd '{os.fsdecode(project_path)}', got '{actual['cwd']}'"
+    )
+    assert "error" not in actual
+    # Test tree should still be structured correctly with top_level_dir as root
+    assert is_same_tree(
+        actual.get("tests"),
+        expected_discovery_test_output.complex_tree_expected_output,
+        ["id_", "lineno", "name"],
+    )
+
+
+@pytest.mark.skipif(
+    sys.platform == "win32",
+    reason="Symlinks require elevated privileges on Windows",
+)
+def test_symlink_with_project_root_path() -> None:
+    """Test unittest discovery with both symlink and PROJECT_ROOT_PATH set.
+
+    This tests the combination of:
+    1. A symlinked test directory
+    2. project_root_path (PROJECT_ROOT_PATH) set to the symlink path
+
+    This simulates project-based testing where the project root is a symlink,
+    ensuring test IDs and paths are correctly resolved through the symlink.
+    """
+    with helpers.create_symlink(TEST_DATA_PATH, "unittest_skip", "symlink_unittest") as (
+        _source,
+        destination,
+    ):
+        assert destination.is_symlink()
+
+        # Run discovery with:
+        # - start_dir pointing to the symlink destination
+        # - project_root_path set to the symlink destination (simulating PROJECT_ROOT_PATH)
+        start_dir = os.fsdecode(destination)
+        pattern = "unittest_*"
+
+        actual = discover_tests(start_dir, pattern, None, project_root_path=start_dir)
+
+        assert actual["status"] == "success", (
+            f"Status is not 'success', error is: {actual.get('error')}"
+        )
+        # cwd should be the symlink path (project_root_path)
+        assert actual["cwd"] == os.fsdecode(destination), (
+            f"CWD does not match symlink path: expected {os.fsdecode(destination)}, got {actual['cwd']}"
+        )
+        assert "tests" in actual
+        assert actual["tests"] is not None
+        # The test tree root should be named after the symlink directory
+        assert actual["tests"]["name"] == "symlink_unittest", (
+            f"Expected root name 'symlink_unittest', got '{actual['tests']['name']}'"
+        )
+        # The test tree root path should use the symlink path
+        assert actual["tests"]["path"] == os.fsdecode(destination), (
+            f"Expected root path to be symlink, got '{actual['tests']['path']}'"
+        )
diff --git a/python_files/tests/unittestadapter/test_execution.py b/python_files/tests/unittestadapter/test_execution.py
index f369c6d770b0..cab03f0b5dc4 100644
--- a/python_files/tests/unittestadapter/test_execution.py
+++ b/python_files/tests/unittestadapter/test_execution.py
@@ -341,3 +341,134 @@ def test_basic_run_django():
             assert id_result["outcome"] == "failure"
         else:
             assert id_result["outcome"] == "success"
+
+
+def test_project_root_path_with_cwd_override(mock_send_run_data) -> None:  # noqa: ARG001
+    """Test unittest execution with project_root_path parameter.
+
+    This simulates project-based testing where the cwd in the payload should be
+    the project root (project_root_path) rather than the start_dir.
+
+    When project_root_path is provided:
+    - The cwd in the response should match project_root_path
+    - Test execution should still work correctly with start_dir
+    """
+    # Use unittest_folder as our "project" directory
+    project_path = TEST_DATA_PATH / "unittest_folder"
+    start_dir = os.fsdecode(project_path)
+    pattern = "test_add*"
+    test_ids = [
+        "test_add.TestAddFunction.test_add_positive_numbers",
+    ]
+
+    os.environ["TEST_RUN_PIPE"] = "fake"
+
+    # Call run_tests with project_root_path to simulate PROJECT_ROOT_PATH
+    actual = run_tests(
+        start_dir,
+        test_ids,
+        pattern,
+        None,
+        1,
+        None,
+        project_root_path=start_dir,
+    )
+
+    assert actual["status"] == "success"
+    # cwd in response should match the project_root_path (project root)
+    assert actual["cwd"] == os.fsdecode(project_path), (
+        f"Expected cwd '{os.fsdecode(project_path)}', got '{actual['cwd']}'"
+    )
+    assert actual["result"] is not None
+    assert test_ids[0] in actual["result"]
+    assert actual["result"][test_ids[0]]["outcome"] == "success"
+
+
+def test_project_root_path_with_different_cwd_and_start_dir(mock_send_run_data) -> None:  # noqa: ARG001
+    """Test unittest execution where project_root_path differs from start_dir.
+
+    This simulates the scenario where:
+    - start_dir points to a subfolder where tests are located
+    - project_root_path (PROJECT_ROOT_PATH) points to the project root
+
+    The cwd in the response should be the project root, while execution
+    still runs from the start_dir.
+    """
+    # Use utils_nested_cases as our test case
+    project_path = TEST_DATA_PATH / "utils_nested_cases"
+    start_dir = os.fsdecode(project_path)
+    pattern = "*"
+    test_ids = [
+        "file_one.CaseTwoFileOne.test_one",
+    ]
+
+    os.environ["TEST_RUN_PIPE"] = "fake"
+
+    # Call run_tests with project_root_path set to project root
+    actual = run_tests(
+        start_dir,
+        test_ids,
+        pattern,
+        None,
+        1,
+        None,
+        project_root_path=os.fsdecode(project_path),
+    )
+
+    assert actual["status"] == "success"
+    # cwd should be the project root (project_root_path)
+    assert actual["cwd"] == os.fsdecode(project_path), (
+        f"Expected cwd '{os.fsdecode(project_path)}', got '{actual['cwd']}'"
+    )
+    assert actual["result"] is not None
+    assert test_ids[0] in actual["result"]
+
+
+@pytest.mark.skipif(
+    sys.platform == "win32",
+    reason="Symlinks require elevated privileges on Windows",
+)
+def test_symlink_with_project_root_path(mock_send_run_data) -> None:  # noqa: ARG001
+    """Test unittest execution with both symlink and project_root_path set.
+
+    This tests the combination of:
+    1. A symlinked test directory
+    2. project_root_path (PROJECT_ROOT_PATH) set to the symlink path
+
+    This simulates project-based testing where the project root is a symlink,
+    ensuring execution payloads correctly use the symlink path.
+    """
+    with helpers.create_symlink(TEST_DATA_PATH, "unittest_folder", "symlink_unittest_exec") as (
+        _source,
+        destination,
+    ):
+        assert destination.is_symlink()
+
+        # Run execution with:
+        # - start_dir pointing to the symlink destination
+        # - project_root_path set to the symlink destination (simulating PROJECT_ROOT_PATH)
+        start_dir = os.fsdecode(destination)
+        pattern = "test_add*"
+        test_ids = [
+            "test_add.TestAddFunction.test_add_positive_numbers",
+        ]
+
+        os.environ["TEST_RUN_PIPE"] = "fake"
+
+        actual = run_tests(
+            start_dir,
+            test_ids,
+            pattern,
+            None,
+            1,
+            None,
+            project_root_path=start_dir,
+        )
+
+        assert actual["status"] == "success", (
+            f"Status is not 'success', error is: {actual.get('error')}"
+        )
+        # cwd should be the symlink path (project_root_path)
+        assert actual["cwd"] == os.fsdecode(destination), (
+            f"CWD does not match symlink path: expected {os.fsdecode(destination)}, got {actual['cwd']}"
+        )
diff --git a/python_files/unittestadapter/discovery.py b/python_files/unittestadapter/discovery.py
index ce8251218743..b3086d92b102 100644
--- a/python_files/unittestadapter/discovery.py
+++ b/python_files/unittestadapter/discovery.py
@@ -27,12 +27,13 @@ def discover_tests(
     start_dir: str,
     pattern: str,
     top_level_dir: Optional[str],
+    project_root_path: Optional[str] = None,
 ) -> DiscoveryPayloadDict:
     """Returns a dictionary containing details of the discovered tests.
 
     The returned dict has the following keys:
 
-    - cwd: Absolute path to the test start directory;
+    - cwd: Absolute path to the test start directory (or project_root_path if provided);
     - status: Test discovery status, can be "success" or "error";
     - tests: Discoverered tests if any, not present otherwise. Note that the status can be "error" but the payload can still contain tests;
     - error: Discovery error if any, not present otherwise.
@@ -56,8 +57,15 @@ def discover_tests(
         "": [list of errors]
         "status": "error",
     }
+
+    Args:
+        start_dir: Directory where test discovery starts
+        pattern: Pattern to match test files (e.g., "test*.py")
+        top_level_dir: Top-level directory for the test tree hierarchy
+        project_root_path: Optional project root path for the cwd in the response payload
+                          (used for project-based testing to root test tree at project)
     """
-    cwd = os.path.abspath(start_dir)  # noqa: PTH100
+    cwd = os.path.abspath(project_root_path or start_dir)  # noqa: PTH100
     if "/" in start_dir:  #  is a subdir
         parent_dir = os.path.dirname(start_dir)  # noqa: PTH120
         sys.path.insert(0, parent_dir)
@@ -133,7 +141,19 @@ def discover_tests(
             print(error_msg, file=sys.stderr)
             raise VSCodeUnittestError(error_msg)  # noqa: B904
     else:
+        # Check for PROJECT_ROOT_PATH environment variable (project-based testing).
+        # When set, this overrides top_level_dir to root the test tree at the project directory.
+        project_root_path = os.environ.get("PROJECT_ROOT_PATH")
+        if project_root_path:
+            top_level_dir = project_root_path
+            print(
+                f"PROJECT_ROOT_PATH is set, using {project_root_path} as top_level_dir for discovery"
+            )
+
         # Perform regular unittest test discovery.
-        payload = discover_tests(start_dir, pattern, top_level_dir)
+        # Pass project_root_path so the payload's cwd matches the project root.
+        payload = discover_tests(
+            start_dir, pattern, top_level_dir, project_root_path=project_root_path
+        )
         # Post this discovery payload.
         send_post_request(payload, test_run_pipe)
diff --git a/python_files/unittestadapter/execution.py b/python_files/unittestadapter/execution.py
index 951289850884..e031138b6f75 100644
--- a/python_files/unittestadapter/execution.py
+++ b/python_files/unittestadapter/execution.py
@@ -36,6 +36,9 @@
 ErrorType = Union[Tuple[Type[BaseException], BaseException, TracebackType], Tuple[None, None, None]]
 test_run_pipe = ""
 START_DIR = ""
+# PROJECT_ROOT_PATH: Used for project-based testing to override cwd in payload
+# When set, this should be used as the cwd in all execution payloads
+PROJECT_ROOT_PATH = None  # type: Optional[str]
 
 
 class TestOutcomeEnum(str, enum.Enum):
@@ -191,8 +194,22 @@ def run_tests(
     verbosity: int,
     failfast: Optional[bool],  # noqa: FBT001
     locals_: Optional[bool] = None,  # noqa: FBT001
+    project_root_path: Optional[str] = None,
 ) -> ExecutionPayloadDict:
-    cwd = os.path.abspath(start_dir)  # noqa: PTH100
+    """Run unittests and return the execution payload.
+
+    Args:
+        start_dir: Directory where test discovery starts
+        test_ids: List of test IDs to run
+        pattern: Pattern to match test files
+        top_level_dir: Top-level directory for test tree hierarchy
+        verbosity: Verbosity level for test output
+        failfast: Stop on first failure
+        locals_: Show local variables in tracebacks
+        project_root_path: Optional project root path for the cwd in the response payload
+                          (used for project-based testing to root test tree at project)
+    """
+    cwd = os.path.abspath(project_root_path or start_dir)  # noqa: PTH100
     if "/" in start_dir:  #  is a subdir
         parent_dir = os.path.dirname(start_dir)  # noqa: PTH120
         sys.path.insert(0, parent_dir)
@@ -259,7 +276,8 @@ def run_tests(
 
 def send_run_data(raw_data, test_run_pipe):
     status = raw_data["outcome"]
-    cwd = os.path.abspath(START_DIR)  # noqa: PTH100
+    # Use PROJECT_ROOT_PATH if set (project-based testing), otherwise use START_DIR
+    cwd = os.path.abspath(PROJECT_ROOT_PATH or START_DIR)  # noqa: PTH100
     test_id = raw_data["subtest"] or raw_data["test"]
     test_dict = {}
     test_dict[test_id] = raw_data
@@ -348,7 +366,19 @@ def send_run_data(raw_data, test_run_pipe):
         args = argv[index + 1 :] or []
         django_execution_runner(manage_py_path, test_ids, args)
     else:
+        # Check for PROJECT_ROOT_PATH environment variable (project-based testing).
+        # When set, this overrides the cwd in the payload to match the project root.
+        project_root_path = os.environ.get("PROJECT_ROOT_PATH")
+        if project_root_path:
+            # Update the module-level variable for send_run_data to use
+            # pylint: disable=global-statement
+            globals()["PROJECT_ROOT_PATH"] = project_root_path
+            print(
+                f"PROJECT_ROOT_PATH is set, using {project_root_path} as cwd for execution payload"
+            )
+
         # Perform regular unittest execution.
+        # Pass project_root_path so the payload's cwd matches the project root.
         payload = run_tests(
             start_dir,
             test_ids,
@@ -357,6 +387,7 @@ def send_run_data(raw_data, test_run_pipe):
             verbosity,
             failfast,
             locals_,
+            project_root_path=project_root_path,
         )
 
     if is_coverage_run:
diff --git a/python_files/vscode_pytest/__init__.py b/python_files/vscode_pytest/__init__.py
index cb0fcd69a00e..be4e3daaa843 100644
--- a/python_files/vscode_pytest/__init__.py
+++ b/python_files/vscode_pytest/__init__.py
@@ -77,6 +77,9 @@ def __init__(self, message):
 map_id_to_path = {}
 collected_tests_so_far = set()
 TEST_RUN_PIPE = os.getenv("TEST_RUN_PIPE")
+PROJECT_ROOT_PATH = os.getenv(
+    "PROJECT_ROOT_PATH"
+)  # Path to project root for multi-project workspaces
 SYMLINK_PATH = None
 INCLUDE_BRANCHES = False
 
@@ -86,6 +89,20 @@ def __init__(self, message):
 _CACHED_CWD: pathlib.Path | None = None
 
 
+def get_test_root_path() -> pathlib.Path:
+    """Get the root path for the test tree.
+
+    For project-based testing, this returns PROJECT_ROOT_PATH (the project root).
+    For legacy mode, this returns the current working directory.
+
+    Returns:
+        pathlib.Path: The root path to use for the test tree.
+    """
+    if PROJECT_ROOT_PATH:
+        return pathlib.Path(PROJECT_ROOT_PATH)
+    return pathlib.Path.cwd()
+
+
 def pytest_load_initial_conftests(early_config, parser, args):  # noqa: ARG001
     has_pytest_cov = early_config.pluginmanager.hasplugin(
         "pytest_cov"
@@ -409,21 +426,23 @@ def pytest_sessionfinish(session, exitstatus):
     Exit code 4: pytest command line usage error
     Exit code 5: No tests were collected
     """
-    cwd = pathlib.Path.cwd()
+    # Get the root path for the test tree structure (not the CWD for test execution)
+    # This is PROJECT_ROOT_PATH in project-based mode, or cwd in legacy mode
+    test_root_path = get_test_root_path()
     if SYMLINK_PATH:
-        print("Plugin warning[vscode-pytest]: SYMLINK set, adjusting cwd.")
-        cwd = pathlib.Path(SYMLINK_PATH)
+        print("Plugin warning[vscode-pytest]: SYMLINK set, adjusting test root path.")
+        test_root_path = pathlib.Path(SYMLINK_PATH)
 
     if IS_DISCOVERY:
         if not (exitstatus == 0 or exitstatus == 1 or exitstatus == 5):
             error_node: TestNode = {
                 "name": "",
-                "path": cwd,
+                "path": test_root_path,
                 "type_": "error",
                 "children": [],
                 "id_": "",
             }
-            send_discovery_message(os.fsdecode(cwd), error_node)
+            send_discovery_message(os.fsdecode(test_root_path), error_node)
         try:
             session_node: TestNode | None = build_test_tree(session)
             if not session_node:
@@ -431,19 +450,19 @@ def pytest_sessionfinish(session, exitstatus):
                     "Something went wrong following pytest finish, \
                         no session node was created"
                 )
-            send_discovery_message(os.fsdecode(cwd), session_node)
+            send_discovery_message(os.fsdecode(test_root_path), session_node)
         except Exception as e:
             ERRORS.append(
                 f"Error Occurred, traceback: {(traceback.format_exc() if e.__traceback__ else '')}"
             )
             error_node: TestNode = {
                 "name": "",
-                "path": cwd,
+                "path": test_root_path,
                 "type_": "error",
                 "children": [],
                 "id_": "",
             }
-            send_discovery_message(os.fsdecode(cwd), error_node)
+            send_discovery_message(os.fsdecode(test_root_path), error_node)
     else:
         if exitstatus == 0 or exitstatus == 1:
             exitstatus_bool = "success"
@@ -454,7 +473,7 @@ def pytest_sessionfinish(session, exitstatus):
             exitstatus_bool = "error"
 
             send_execution_message(
-                os.fsdecode(cwd),
+                os.fsdecode(test_root_path),
                 exitstatus_bool,
                 None,
             )
@@ -540,7 +559,7 @@ def pytest_sessionfinish(session, exitstatus):
 
         payload: CoveragePayloadDict = CoveragePayloadDict(
             coverage=True,
-            cwd=os.fspath(cwd),
+            cwd=os.fspath(test_root_path),
             result=file_coverage_map,
             error=None,
         )
@@ -832,7 +851,8 @@ def create_session_node(session: pytest.Session) -> TestNode:
     Keyword arguments:
     session -- the pytest session.
     """
-    node_path = get_node_path(session)
+    # Use PROJECT_ROOT_PATH if set (project-based testing), otherwise use session path (legacy)
+    node_path = pathlib.Path(PROJECT_ROOT_PATH) if PROJECT_ROOT_PATH else get_node_path(session)
     return {
         "name": node_path.name,
         "path": node_path,
diff --git a/src/client/testing/common/debugLauncher.ts b/src/client/testing/common/debugLauncher.ts
index c28535b30644..037bfb265088 100644
--- a/src/client/testing/common/debugLauncher.ts
+++ b/src/client/testing/common/debugLauncher.ts
@@ -1,6 +1,6 @@
 import { inject, injectable, named } from 'inversify';
 import * as path from 'path';
-import { DebugConfiguration, l10n, Uri, WorkspaceFolder, DebugSession, DebugSessionOptions } from 'vscode';
+import { DebugConfiguration, l10n, Uri, WorkspaceFolder, DebugSession, DebugSessionOptions, Disposable } from 'vscode';
 import { IApplicationShell, IDebugService } from '../../common/application/types';
 import { EXTENSION_ROOT_DIR } from '../../common/constants';
 import * as internalScripts from '../../common/process/internal/scripts';
@@ -17,6 +17,14 @@ import { getWorkspaceFolder, getWorkspaceFolders } from '../../common/vscodeApis
 import { showErrorMessage } from '../../common/vscodeApis/windowApis';
 import { createDeferred } from '../../common/utils/async';
 import { addPathToPythonpath } from './helpers';
+import * as envExtApi from '../../envExt/api.internal';
+
+/**
+ * Key used to mark debug configurations with a unique session identifier.
+ * This allows us to track which debug session belongs to which launchDebugger() call
+ * when multiple debug sessions are launched in parallel.
+ */
+const TEST_SESSION_MARKER_KEY = '__vscodeTestSessionMarker';
 
 @injectable()
 export class DebugLauncher implements ITestDebugLauncher {
@@ -31,6 +39,10 @@ export class DebugLauncher implements ITestDebugLauncher {
         this.configService = this.serviceContainer.get<IConfigurationService>(IConfigurationService);
     }
 
+    /**
+     * Launches a debug session for test execution.
+     * Handles cancellation, multi-session support via unique markers, and cleanup.
+     */
     public async launchDebugger(
         options: LaunchOptions,
         callback?: () => void,
@@ -38,18 +50,35 @@ export class DebugLauncher implements ITestDebugLauncher {
     ): Promise<void> {
         const deferred = createDeferred<void>();
         let hasCallbackBeenCalled = false;
+
+        // Collect disposables for cleanup when debugging completes
+        const disposables: Disposable[] = [];
+
+        // Ensure callback is only invoked once, even if multiple termination paths fire
+        const callCallbackOnce = () => {
+            if (!hasCallbackBeenCalled) {
+                hasCallbackBeenCalled = true;
+                callback?.();
+            }
+        };
+
+        // Early exit if already cancelled before we start
         if (options.token && options.token.isCancellationRequested) {
-            hasCallbackBeenCalled = true;
-            return undefined;
+            callCallbackOnce();
             deferred.resolve();
-            callback?.();
+            return deferred.promise;
         }
 
-        options.token?.onCancellationRequested(() => {
-            deferred.resolve();
-            callback?.();
-            hasCallbackBeenCalled = true;
-        });
+        // Listen for cancellation from the test run (e.g., user clicks stop in Test Explorer)
+        // This allows the caller to clean up resources even if the debug session is still running
+        if (options.token) {
+            disposables.push(
+                options.token.onCancellationRequested(() => {
+                    deferred.resolve();
+                    callCallbackOnce();
+                }),
+            );
+        }
 
         const workspaceFolder = DebugLauncher.resolveWorkspaceFolder(options.cwd);
         const launchArgs = await this.getLaunchArgs(
@@ -59,23 +88,57 @@ export class DebugLauncher implements ITestDebugLauncher {
         );
         const debugManager = this.serviceContainer.get<IDebugService>(IDebugService);
 
-        let activatedDebugSession: DebugSession | undefined;
-        debugManager.startDebugging(workspaceFolder, launchArgs, sessionOptions).then(() => {
-            // Save the debug session after it is started so we can check if it is the one that was terminated.
-            activatedDebugSession = debugManager.activeDebugSession;
-        });
-        debugManager.onDidTerminateDebugSession((session) => {
-            traceVerbose(`Debug session terminated. sessionId: ${session.id}`);
-            // Only resolve no callback has been made and the session is the one that was started.
-            if (
-                !hasCallbackBeenCalled &&
-                activatedDebugSession !== undefined &&
-                session.id === activatedDebugSession?.id
-            ) {
-                deferred.resolve();
-                callback?.();
-            }
+        // Unique marker to identify this session among concurrent debug sessions
+        const sessionMarker = `test-${Date.now()}-${Math.random().toString(36).slice(2)}`;
+        launchArgs[TEST_SESSION_MARKER_KEY] = sessionMarker;
+
+        let ourSession: DebugSession | undefined;
+
+        // Capture our specific debug session when it starts by matching the marker.
+        // This fires for ALL debug sessions, so we filter to only our marker.
+        disposables.push(
+            debugManager.onDidStartDebugSession((session) => {
+                if (session.configuration[TEST_SESSION_MARKER_KEY] === sessionMarker) {
+                    ourSession = session;
+                    traceVerbose(`[test-debug] Debug session started: ${session.name} (${session.id})`);
+                }
+            }),
+        );
+
+        // Handle debug session termination (user stops debugging, or tests complete).
+        // Only react to OUR session terminating - other parallel sessions should
+        // continue running independently.
+        disposables.push(
+            debugManager.onDidTerminateDebugSession((session) => {
+                if (ourSession && session.id === ourSession.id) {
+                    traceVerbose(`[test-debug] Debug session terminated: ${session.name} (${session.id})`);
+                    deferred.resolve();
+                    callCallbackOnce();
+                }
+            }),
+        );
+
+        // Clean up event subscriptions when debugging completes (success, failure, or cancellation)
+        deferred.promise.finally(() => {
+            disposables.forEach((d) => d.dispose());
         });
+
+        // Start the debug session
+        let started = false;
+        try {
+            started = await debugManager.startDebugging(workspaceFolder, launchArgs, sessionOptions);
+        } catch (error) {
+            traceError('Error starting debug session', error);
+            deferred.reject(error);
+            callCallbackOnce();
+            return deferred.promise;
+        }
+        if (!started) {
+            traceError('Failed to start debug session');
+            deferred.resolve();
+            callCallbackOnce();
+        }
+
         return deferred.promise;
     }
 
@@ -108,6 +171,12 @@ export class DebugLauncher implements ITestDebugLauncher {
                 subProcess: true,
             };
         }
+
+        // Use project name in debug session name if provided
+        if (options.project) {
+            debugConfig.name = `Debug Tests: ${options.project.name}`;
+        }
+
         if (!debugConfig.rules) {
             debugConfig.rules = [];
         }
@@ -116,7 +185,7 @@ export class DebugLauncher implements ITestDebugLauncher {
             include: false,
         });
 
-        DebugLauncher.applyDefaults(debugConfig!, workspaceFolder, configSettings);
+        DebugLauncher.applyDefaults(debugConfig!, workspaceFolder, configSettings, options.cwd);
 
         return this.convertConfigToArgs(debugConfig!, workspaceFolder, options);
     }
@@ -163,6 +232,7 @@ export class DebugLauncher implements ITestDebugLauncher {
         cfg: LaunchRequestArguments,
         workspaceFolder: WorkspaceFolder,
         configSettings: IPythonSettings,
+        optionsCwd?: string,
     ) {
         // cfg.pythonPath is handled by LaunchConfigurationResolver.
 
@@ -170,7 +240,9 @@ export class DebugLauncher implements ITestDebugLauncher {
             cfg.console = 'internalConsole';
         }
         if (!cfg.cwd) {
-            cfg.cwd = configSettings.testing.cwd || workspaceFolder.uri.fsPath;
+            // For project-based testing, use the project's cwd (optionsCwd) if provided.
+            // Otherwise fall back to settings.testing.cwd or the workspace folder.
+            cfg.cwd = optionsCwd || configSettings.testing.cwd || workspaceFolder.uri.fsPath;
         }
         if (!cfg.env) {
             cfg.env = {};
@@ -257,6 +329,23 @@ export class DebugLauncher implements ITestDebugLauncher {
         // run via F5 style debugging.
         launchArgs.purpose = [];
 
+        // For project-based execution, get the Python path from the project's environment.
+        // Fallback: if env API unavailable or fails, LaunchConfigurationResolver already set
+        // launchArgs.python from the active interpreter, so debugging still works.
+        if (options.project && envExtApi.useEnvExtension()) {
+            try {
+                const pythonEnv = await envExtApi.getEnvironment(options.project.uri);
+                if (pythonEnv?.execInfo?.run?.executable) {
+                    launchArgs.python = pythonEnv.execInfo.run.executable;
+                    traceVerbose(
+                        `[test-by-project] Debug session using Python path from project: ${launchArgs.python}`,
+                    );
+                }
+            } catch (error) {
+                traceVerbose(`[test-by-project] Could not get environment for project, using default: ${error}`);
+            }
+        }
+
         return launchArgs;
     }
 
diff --git a/src/client/testing/common/types.ts b/src/client/testing/common/types.ts
index 562005386633..e2fa2d6d2e5a 100644
--- a/src/client/testing/common/types.ts
+++ b/src/client/testing/common/types.ts
@@ -2,6 +2,7 @@ import { CancellationToken, DebugSessionOptions, OutputChannel, Uri } from 'vsco
 import { Product } from '../../common/types';
 import { TestSettingsPropertyNames } from '../configuration/types';
 import { TestProvider } from '../types';
+import { PythonProject } from '../../envExt/types';
 
 export type UnitTestProduct = Product.pytest | Product.unittest;
 
@@ -26,6 +27,8 @@ export type LaunchOptions = {
     pytestPort?: string;
     pytestUUID?: string;
     runTestIdsPort?: string;
+    /** Optional Python project for project-based execution. */
+    project?: PythonProject;
 };
 
 export enum TestFilter {
diff --git a/src/client/testing/testController/common/projectAdapter.ts b/src/client/testing/testController/common/projectAdapter.ts
new file mode 100644
index 000000000000..cfffbf439ca6
--- /dev/null
+++ b/src/client/testing/testController/common/projectAdapter.ts
@@ -0,0 +1,88 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+import { TestItem, Uri } from 'vscode';
+import { TestProvider } from '../../types';
+import { ITestDiscoveryAdapter, ITestExecutionAdapter, ITestResultResolver } from './types';
+import { PythonEnvironment, PythonProject } from '../../../envExt/types';
+
+/**
+ * Represents a single Python project with its own test infrastructure.
+ * A project is defined as a combination of a Python executable + URI (folder/file).
+ * Projects are uniquely identified by their projectUri (use projectUri.toString() for map keys).
+ */
+export interface ProjectAdapter {
+    // === IDENTITY ===
+    /**
+     * Display name for the project (e.g., "alice (Python 3.11)").
+     */
+    projectName: string;
+
+    /**
+     * URI of the project root folder or file.
+     * This is the unique identifier for the project.
+     */
+    projectUri: Uri;
+
+    /**
+     * Parent workspace URI containing this project.
+     */
+    workspaceUri: Uri;
+
+    // === API OBJECTS (from vscode-python-environments extension) ===
+    /**
+     * The PythonProject object from the environment API.
+     */
+    pythonProject: PythonProject;
+
+    /**
+     * The resolved PythonEnvironment with execution details.
+     * Contains execInfo.run.executable for running tests.
+     */
+    pythonEnvironment: PythonEnvironment;
+
+    // === TEST INFRASTRUCTURE ===
+    /**
+     * Test framework provider ('pytest' | 'unittest').
+     */
+    testProvider: TestProvider;
+
+    /**
+     * Adapter for test discovery.
+     */
+    discoveryAdapter: ITestDiscoveryAdapter;
+
+    /**
+     * Adapter for test execution.
+     */
+    executionAdapter: ITestExecutionAdapter;
+
+    /**
+     * Result resolver for this project (maps test IDs and handles results).
+     */
+    resultResolver: ITestResultResolver;
+
+    /**
+     * Absolute paths of nested projects to ignore during discovery.
+     * Used to pass --ignore flags to pytest or exclusion filters to unittest.
+     * Only populated for parent projects that contain nested child projects.
+     */
+    nestedProjectPathsToIgnore?: string[];
+
+    // === LIFECYCLE ===
+    /**
+     * Whether discovery is currently running for this project.
+     */
+    isDiscovering: boolean;
+
+    /**
+     * Whether tests are currently executing for this project.
+     */
+    isExecuting: boolean;
+
+    /**
+     * Root TestItem for this project in the VS Code test tree.
+     * All project tests are children of this item.
+     */
+    projectRootTestItem?: TestItem;
+}
diff --git a/src/client/testing/testController/common/projectTestExecution.ts b/src/client/testing/testController/common/projectTestExecution.ts
new file mode 100644
index 000000000000..fe3b4f91491a
--- /dev/null
+++ b/src/client/testing/testController/common/projectTestExecution.ts
@@ -0,0 +1,296 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+import { CancellationToken, FileCoverageDetail, TestItem, TestRun, TestRunProfileKind, TestRunRequest } from 'vscode';
+import { traceError, traceInfo, traceVerbose, traceWarn } from '../../../logging';
+import { sendTelemetryEvent } from '../../../telemetry';
+import { EventName } from '../../../telemetry/constants';
+import { IPythonExecutionFactory } from '../../../common/process/types';
+import { ITestDebugLauncher } from '../../common/types';
+import { ProjectAdapter } from './projectAdapter';
+import { TestProjectRegistry } from './testProjectRegistry';
+import { getProjectId } from './projectUtils';
+import { getEnvExtApi, useEnvExtension } from '../../../envExt/api.internal';
+import { isParentPath } from '../../../pythonEnvironments/common/externalDependencies';
+
+/** Dependencies for project-based test execution. */
+export interface ProjectExecutionDependencies {
+    projectRegistry: TestProjectRegistry;
+    pythonExecFactory: IPythonExecutionFactory;
+    debugLauncher: ITestDebugLauncher;
+}
+
+/** Executes tests for multiple projects, grouping by project and using each project's Python environment. */
+export async function executeTestsForProjects(
+    projects: ProjectAdapter[],
+    testItems: TestItem[],
+    runInstance: TestRun,
+    request: TestRunRequest,
+    token: CancellationToken,
+    deps: ProjectExecutionDependencies,
+): Promise<void> {
+    if (projects.length === 0) {
+        traceError(`[test-by-project] No projects provided for execution`);
+        return;
+    }
+
+    // Early exit if already cancelled
+    if (token.isCancellationRequested) {
+        traceInfo(`[test-by-project] Execution cancelled before starting`);
+        return;
+    }
+
+    // Group test items by project
+    const testsByProject = await groupTestItemsByProject(testItems, projects);
+
+    const isDebugMode = request.profile?.kind === TestRunProfileKind.Debug;
+    traceInfo(`[test-by-project] Executing tests across ${testsByProject.size} project(s), debug=${isDebugMode}`);
+
+    // Setup coverage once for all projects (single callback that routes by file path)
+    if (request.profile?.kind === TestRunProfileKind.Coverage) {
+        setupCoverageForProjects(request, projects);
+    }
+
+    // Execute tests for each project in parallel
+    // For debug mode, multiple debug sessions will be launched in parallel
+    // Each execution respects cancellation via runInstance.token
+    const executions = Array.from(testsByProject.entries()).map(async ([_projectId, { project, items }]) => {
+        // Check for cancellation before starting each project
+        if (token.isCancellationRequested) {
+            traceInfo(`[test-by-project] Skipping ${project.projectName} - cancellation requested`);
+            return;
+        }
+
+        if (items.length === 0) return;
+
+        traceInfo(`[test-by-project] Executing ${items.length} test item(s) for project: ${project.projectName}`);
+
+        sendTelemetryEvent(EventName.UNITTEST_RUN, undefined, {
+            tool: project.testProvider,
+            debugging: isDebugMode,
+        });
+
+        try {
+            await executeTestsForProject(project, items, runInstance, request, deps);
+        } catch (error) {
+            // Don't log cancellation as an error
+            if (!token.isCancellationRequested) {
+                traceError(`[test-by-project] Execution failed for project ${project.projectName}:`, error);
+            }
+        }
+    });
+
+    await Promise.all(executions);
+
+    if (token.isCancellationRequested) {
+        traceInfo(`[test-by-project] Project executions cancelled`);
+    } else {
+        traceInfo(`[test-by-project] All project executions completed`);
+    }
+}
+
+/** Lookup context for caching project lookups within a single test run. */
+interface ProjectLookupContext {
+    uriToAdapter: Map<string, ProjectAdapter | undefined>;
+    projectPathToAdapter: Map<string, ProjectAdapter>;
+}
+
+/** Groups test items by owning project using env API or path-based matching as fallback. */
+export async function groupTestItemsByProject(
+    testItems: TestItem[],
+    projects: ProjectAdapter[],
+): Promise<Map<string, { project: ProjectAdapter; items: TestItem[] }>> {
+    const result = new Map<string, { project: ProjectAdapter; items: TestItem[] }>();
+
+    // Initialize entries for all projects
+    for (const project of projects) {
+        result.set(getProjectId(project.projectUri), { project, items: [] });
+    }
+
+    // Build lookup context for this run - O(p) one-time setup, enables O(1) lookups per item.
+    // When tests are from a single project, most lookups hit the cache after the first item.
+    const lookupContext: ProjectLookupContext = {
+        uriToAdapter: new Map(),
+        projectPathToAdapter: new Map(projects.map((p) => [p.projectUri.fsPath, p])),
+    };
+
+    // Assign each test item to its project
+    for (const item of testItems) {
+        const project = await findProjectForTestItem(item, projects, lookupContext);
+        if (project) {
+            const entry = result.get(getProjectId(project.projectUri));
+            if (entry) {
+                entry.items.push(item);
+            }
+        } else {
+            // If no project matches, log it
+            traceWarn(`[test-by-project] Could not match test item ${item.id} to a project`);
+        }
+    }
+
+    // Remove projects with no test items
+    for (const [projectId, entry] of result.entries()) {
+        if (entry.items.length === 0) {
+            result.delete(projectId);
+        }
+    }
+
+    return result;
+}
+
+/** Finds the project that owns a test item. */
+export async function findProjectForTestItem(
+    item: TestItem,
+    projects: ProjectAdapter[],
+    lookupContext?: ProjectLookupContext,
+): Promise<ProjectAdapter | undefined> {
+    if (!item.uri) return undefined;
+
+    const uriPath = item.uri.fsPath;
+
+    // Check lookup context first - O(1)
+    if (lookupContext?.uriToAdapter.has(uriPath)) {
+        return lookupContext.uriToAdapter.get(uriPath);
+    }
+
+    let result: ProjectAdapter | undefined;
+
+    // Try using the Python Environment extension API first.
+    // Legacy path: when useEnvExtension() is false, this block is skipped and we go
+    // directly to findProjectByPath() below (path-based matching).
+    if (useEnvExtension()) {
+        try {
+            const envExtApi = await getEnvExtApi();
+            const pythonProject = envExtApi.getPythonProject(item.uri);
+            if (pythonProject) {
+                // Use lookup context for O(1) adapter lookup instead of O(p) linear search
+                result = lookupContext?.projectPathToAdapter.get(pythonProject.uri.fsPath);
+                if (!result) {
+                    // Fallback to linear search if lookup context not available
+                    result = projects.find((p) => p.projectUri.fsPath === pythonProject.uri.fsPath);
+                }
+            }
+        } catch (error) {
+            traceVerbose(`[test-by-project] Failed to use env extension API, falling back to path matching: ${error}`);
+        }
+    }
+
+    // Fallback: path-based matching when env API unavailable or didn't find a match.
+    // O(p) time complexity where p = number of projects.
+    if (!result) {
+        result = findProjectByPath(item, projects);
+    }
+
+    // Store result for future lookups of same file within this run - O(1)
+    if (lookupContext) {
+        lookupContext.uriToAdapter.set(uriPath, result);
+    }
+
+    return result;
+}
+
+/** Fallback: finds project using path-based matching. */
+function findProjectByPath(item: TestItem, projects: ProjectAdapter[]): ProjectAdapter | undefined {
+    if (!item.uri) return undefined;
+
+    const itemPath = item.uri.fsPath;
+    let bestMatch: ProjectAdapter | undefined;
+    let bestMatchLength = 0;
+
+    for (const project of projects) {
+        const projectPath = project.projectUri.fsPath;
+        // Use isParentPath for safe path-boundary matching (handles separators and case normalization)
+        if (isParentPath(itemPath, projectPath) && projectPath.length > bestMatchLength) {
+            bestMatch = project;
+            bestMatchLength = projectPath.length;
+        }
+    }
+
+    return bestMatch;
+}
+
+/** Executes tests for a single project using the project's Python environment. */
+export async function executeTestsForProject(
+    project: ProjectAdapter,
+    testItems: TestItem[],
+    runInstance: TestRun,
+    request: TestRunRequest,
+    deps: ProjectExecutionDependencies,
+): Promise<void> {
+    const processedTestItemIds = new Set<string>();
+    const uniqueTestCaseIds = new Set<string>();
+
+    // Mark items as started and collect test IDs (deduplicated to handle overlapping selections)
+    for (const item of testItems) {
+        const testCaseNodes = getTestCaseNodesRecursive(item);
+        for (const node of testCaseNodes) {
+            if (processedTestItemIds.has(node.id)) {
+                continue;
+            }
+            processedTestItemIds.add(node.id);
+            runInstance.started(node);
+            const runId = project.resultResolver.vsIdToRunId.get(node.id);
+            if (runId) {
+                uniqueTestCaseIds.add(runId);
+            }
+        }
+    }
+
+    const testCaseIds = Array.from(uniqueTestCaseIds);
+
+    if (testCaseIds.length === 0) {
+        traceVerbose(`[test-by-project] No test IDs found for project ${project.projectName}`);
+        return;
+    }
+
+    traceInfo(`[test-by-project] Running ${testCaseIds.length} test(s) for project: ${project.projectName}`);
+
+    // Execute tests using the project's execution adapter
+    await project.executionAdapter.runTests(
+        project.projectUri,
+        testCaseIds,
+        request.profile?.kind,
+        runInstance,
+        deps.pythonExecFactory,
+        deps.debugLauncher,
+        undefined, // interpreter not needed, project has its own environment
+        project,
+    );
+}
+
+/** Recursively gets all leaf test case nodes from a test item tree. */
+export function getTestCaseNodesRecursive(item: TestItem): TestItem[] {
+    const results: TestItem[] = [];
+    if (item.children.size === 0) {
+        // This is a leaf node (test case)
+        results.push(item);
+    } else {
+        // Recursively get children
+        item.children.forEach((child) => {
+            results.push(...getTestCaseNodesRecursive(child));
+        });
+    }
+    return results;
+}
+
+/** Sets up detailed coverage loading that routes to the correct project by file path. */
+export function setupCoverageForProjects(request: TestRunRequest, projects: ProjectAdapter[]): void {
+    if (request.profile?.kind === TestRunProfileKind.Coverage) {
+        // Create a single callback that routes to the correct project's coverage map by file path
+        request.profile.loadDetailedCoverage = (
+            _testRun: TestRun,
+            fileCoverage,
+            _token,
+        ): Thenable<FileCoverageDetail[]> => {
+            const filePath = fileCoverage.uri.fsPath;
+            // Find the project that has coverage data for this file
+            for (const project of projects) {
+                const details = project.resultResolver.detailedCoverageMap.get(filePath);
+                if (details) {
+                    return Promise.resolve(details);
+                }
+            }
+            return Promise.resolve([]);
+        };
+    }
+}
diff --git a/src/client/testing/testController/common/projectUtils.ts b/src/client/testing/testController/common/projectUtils.ts
new file mode 100644
index 000000000000..b104b7f6842d
--- /dev/null
+++ b/src/client/testing/testController/common/projectUtils.ts
@@ -0,0 +1,91 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+import { Uri } from 'vscode';
+import { IConfigurationService } from '../../../common/types';
+import { IEnvironmentVariablesProvider } from '../../../common/variables/types';
+import { UNITTEST_PROVIDER } from '../../common/constants';
+import { TestProvider } from '../../types';
+import { ITestDiscoveryAdapter, ITestExecutionAdapter, ITestResultResolver } from './types';
+import { UnittestTestDiscoveryAdapter } from '../unittest/testDiscoveryAdapter';
+import { UnittestTestExecutionAdapter } from '../unittest/testExecutionAdapter';
+import { PytestTestDiscoveryAdapter } from '../pytest/pytestDiscoveryAdapter';
+import { PytestTestExecutionAdapter } from '../pytest/pytestExecutionAdapter';
+
+/**
+ * Separator used to scope test IDs to a specific project.
+ * Format: {projectId}{SEPARATOR}{testPath}
+ * Example: "file:///workspace/project@@PROJECT@@test_file.py::test_name"
+ */
+export const PROJECT_ID_SEPARATOR = '@@vsc@@';
+
+/**
+ * Gets the project ID from a project URI.
+ * The project ID is simply the string representation of the URI, matching how
+ * the Python Environments extension stores projects in Map<string, PythonProject>.
+ *
+ * @param projectUri The project URI
+ * @returns The project ID (URI as string)
+ */
+export function getProjectId(projectUri: Uri): string {
+    return projectUri.toString();
+}
+
+/**
+ * Parses a project-scoped vsId back into its components.
+ *
+ * @param vsId The VS Code test item ID to parse
+ * @returns A tuple of [projectId, runId]. If the ID is not project-scoped,
+ *          returns [undefined, vsId] (legacy format)
+ */
+export function parseVsId(vsId: string): [string | undefined, string] {
+    const separatorIndex = vsId.indexOf(PROJECT_ID_SEPARATOR);
+    if (separatorIndex === -1) {
+        return [undefined, vsId]; // Legacy ID without project scope
+    }
+    return [vsId.substring(0, separatorIndex), vsId.substring(separatorIndex + PROJECT_ID_SEPARATOR.length)];
+}
+
+/**
+ * Creates a display name for a project including Python version.
+ * Format: "{projectName} (Python {version})"
+ *
+ * @param projectName The name of the project
+ * @param pythonVersion The Python version string (e.g., "3.11.2")
+ * @returns Formatted display name
+ */
+export function createProjectDisplayName(projectName: string, pythonVersion: string): string {
+    // Extract major.minor version if full version provided
+    const versionMatch = pythonVersion.match(/^(\d+\.\d+)/);
+    const shortVersion = versionMatch ? versionMatch[1] : pythonVersion;
+
+    return `${projectName} (Python ${shortVersion})`;
+}
+
+/**
+ * Creates test adapters (discovery and execution) for a given test provider.
+ *
+ * @param testProvider The test framework provider ('pytest' | 'unittest')
+ * @param resultResolver The result resolver to use for test results
+ * @param configSettings The configuration service
+ * @param envVarsService The environment variables provider
+ * @returns An object containing the discovery and execution adapters
+ */
+export function createTestAdapters(
+    testProvider: TestProvider,
+    resultResolver: ITestResultResolver,
+    configSettings: IConfigurationService,
+    envVarsService: IEnvironmentVariablesProvider,
+): { discoveryAdapter: ITestDiscoveryAdapter; executionAdapter: ITestExecutionAdapter } {
+    if (testProvider === UNITTEST_PROVIDER) {
+        return {
+            discoveryAdapter: new UnittestTestDiscoveryAdapter(configSettings, resultResolver, envVarsService),
+            executionAdapter: new UnittestTestExecutionAdapter(configSettings, resultResolver, envVarsService),
+        };
+    }
+
+    return {
+        discoveryAdapter: new PytestTestDiscoveryAdapter(configSettings, resultResolver, envVarsService),
+        executionAdapter: new PytestTestExecutionAdapter(configSettings, resultResolver, envVarsService),
+    };
+}
diff --git a/src/client/testing/testController/common/resultResolver.ts b/src/client/testing/testController/common/resultResolver.ts
index 959d08fee1a9..c126d233de1b 100644
--- a/src/client/testing/testController/common/resultResolver.ts
+++ b/src/client/testing/testController/common/resultResolver.ts
@@ -26,10 +26,31 @@ export class PythonResultResolver implements ITestResultResolver {
 
     public detailedCoverageMap = new Map<string, FileCoverageDetail[]>();
 
-    constructor(testController: TestController, testProvider: TestProvider, private workspaceUri: Uri) {
+    /**
+     * Optional project ID for scoping test IDs.
+     * When set, all test IDs are prefixed with `{projectId}@@vsc@@` for project-based testing.
+     * When undefined, uses legacy workspace-level IDs for backward compatibility.
+     */
+    private projectId?: string;
+
+    /**
+     * Optional project display name for labeling the test tree root.
+     * When set, the root node label will be "project: {projectName}" instead of the folder name.
+     */
+    private projectName?: string;
+
+    constructor(
+        testController: TestController,
+        testProvider: TestProvider,
+        private workspaceUri: Uri,
+        projectId?: string,
+        projectName?: string,
+    ) {
         this.testController = testController;
         this.testProvider = testProvider;
-        // Initialize a new TestItemIndex which will be used to track test items in this workspace
+        this.projectId = projectId;
+        this.projectName = projectName;
+        // Initialize a new TestItemIndex which will be used to track test items in this workspace/project
         this.testItemIndex = new TestItemIndex();
     }
 
@@ -46,6 +67,14 @@ export class PythonResultResolver implements ITestResultResolver {
         return this.testItemIndex.vsIdToRunIdMap;
     }
 
+    /**
+     * Gets the project ID for this resolver (if any).
+     * Used for project-scoped test ID generation.
+     */
+    public getProjectId(): string | undefined {
+        return this.projectId;
+    }
+
     public resolveDiscovery(payload: DiscoveredTestPayload, token?: CancellationToken): void {
         PythonResultResolver.discoveryHandler.processDiscovery(
             payload,
@@ -54,6 +83,8 @@ export class PythonResultResolver implements ITestResultResolver {
             this.workspaceUri,
             this.testProvider,
             token,
+            this.projectId,
+            this.projectName,
         );
         sendTelemetryEvent(EventName.UNITTEST_DISCOVERY_DONE, undefined, {
             tool: this.testProvider,
diff --git a/src/client/testing/testController/common/testDiscoveryHandler.ts b/src/client/testing/testController/common/testDiscoveryHandler.ts
index 50f4fa71406a..3f70e6b68594 100644
--- a/src/client/testing/testController/common/testDiscoveryHandler.ts
+++ b/src/client/testing/testController/common/testDiscoveryHandler.ts
@@ -5,11 +5,12 @@ import { CancellationToken, TestController, Uri, MarkdownString } from 'vscode';
 import * as util from 'util';
 import { DiscoveredTestPayload } from './types';
 import { TestProvider } from '../../types';
-import { traceError } from '../../../logging';
+import { traceError, traceWarn } from '../../../logging';
 import { Testing } from '../../../common/utils/localize';
 import { createErrorTestItem } from './testItemUtilities';
 import { buildErrorNodeOptions, populateTestTree } from './utils';
 import { TestItemIndex } from './testItemIndex';
+import { PROJECT_ID_SEPARATOR } from './projectUtils';
 
 /**
  * Stateless handler for processing discovery payloads and building/updating the TestItem tree.
@@ -27,6 +28,8 @@ export class TestDiscoveryHandler {
         workspaceUri: Uri,
         testProvider: TestProvider,
         token?: CancellationToken,
+        projectId?: string,
+        projectName?: string,
     ): void {
         if (!payload) {
             // No test data is available
@@ -38,10 +41,13 @@ export class TestDiscoveryHandler {
 
         // Check if there were any errors in the discovery process.
         if (rawTestData.status === 'error') {
-            this.createErrorNode(testController, workspaceUri, rawTestData.error, testProvider);
+            this.createErrorNode(testController, workspaceUri, rawTestData.error, testProvider, projectId, projectName);
         } else {
             // remove error node only if no errors exist.
-            testController.items.delete(`DiscoveryError:${workspacePath}`);
+            const errorNodeId = projectId
+                ? `${projectId}${PROJECT_ID_SEPARATOR}DiscoveryError:${workspacePath}`
+                : `DiscoveryError:${workspacePath}`;
+            testController.items.delete(errorNodeId);
         }
 
         if (rawTestData.tests || rawTestData.tests === null) {
@@ -62,8 +68,10 @@ export class TestDiscoveryHandler {
                     runIdToTestItem: testItemIndex.runIdToTestItemMap,
                     runIdToVSid: testItemIndex.runIdToVSidMap,
                     vsIdToRunId: testItemIndex.vsIdToRunIdMap,
-                } as any,
+                },
                 token,
+                projectId,
+                projectName,
             );
         }
     }
@@ -76,6 +84,8 @@ export class TestDiscoveryHandler {
         workspaceUri: Uri,
         error: string[] | undefined,
         testProvider: TestProvider,
+        projectId?: string,
+        projectName?: string,
     ): void {
         const workspacePath = workspaceUri.fsPath;
         const testingErrorConst =
@@ -83,14 +93,41 @@ export class TestDiscoveryHandler {
 
         traceError(testingErrorConst, 'for workspace: ', workspacePath, '\r\n', error?.join('\r\n\r\n') ?? '');
 
-        let errorNode = testController.items.get(`DiscoveryError:${workspacePath}`);
+        // For unittest in project-based mode, check if the error might be caused by nested project imports
+        // This helps users understand that import errors from nested projects can be safely ignored
+        // if those tests are covered by a different project with the correct environment.
+        if (testProvider === 'unittest' && projectId) {
+            const errorText = error?.join(' ') ?? '';
+            const isImportError =
+                errorText.includes('ModuleNotFoundError') ||
+                errorText.includes('ImportError') ||
+                errorText.includes('No module named');
+
+            if (isImportError) {
+                const warningMessage =
+                    '--- ' +
+                    `[test-by-project] Import error during unittest discovery for project at ${workspacePath}. ` +
+                    'This may be caused by test files in nested project directories that require different dependencies. ' +
+                    'If these tests are discovered successfully by their own project (with the correct Python environment), ' +
+                    'this error can be safely ignored. To avoid this, consider excluding nested project paths from parent project discovery. ' +
+                    '---';
+                traceWarn(warningMessage);
+            }
+        }
+
+        const errorNodeId = projectId
+            ? `${projectId}${PROJECT_ID_SEPARATOR}DiscoveryError:${workspacePath}`
+            : `DiscoveryError:${workspacePath}`;
+        let errorNode = testController.items.get(errorNodeId);
         const message = util.format(
             `${testingErrorConst} ${Testing.seePythonOutput}\r\n`,
             error?.join('\r\n\r\n') ?? '',
         );
 
         if (errorNode === undefined) {
-            const options = buildErrorNodeOptions(workspaceUri, message, testProvider);
+            const options = buildErrorNodeOptions(workspaceUri, message, testProvider, projectName);
+            // Update the error node ID to include project scope if applicable
+            options.id = errorNodeId;
             errorNode = createErrorTestItem(testController, options);
             testController.items.add(errorNode);
         }
diff --git a/src/client/testing/testController/common/testProjectRegistry.ts b/src/client/testing/testController/common/testProjectRegistry.ts
new file mode 100644
index 000000000000..4f0702ad584c
--- /dev/null
+++ b/src/client/testing/testController/common/testProjectRegistry.ts
@@ -0,0 +1,330 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+import * as path from 'path';
+import { TestController, Uri } from 'vscode';
+import { isParentPath } from '../../../common/platform/fs-paths';
+import { IConfigurationService } from '../../../common/types';
+import { IInterpreterService } from '../../../interpreter/contracts';
+import { traceError, traceInfo } from '../../../logging';
+import { UNITTEST_PROVIDER } from '../../common/constants';
+import { TestProvider } from '../../types';
+import { IEnvironmentVariablesProvider } from '../../../common/variables/types';
+import { PythonProject, PythonEnvironment } from '../../../envExt/types';
+import { getEnvExtApi, useEnvExtension } from '../../../envExt/api.internal';
+import { ProjectAdapter } from './projectAdapter';
+import { getProjectId, createProjectDisplayName, createTestAdapters } from './projectUtils';
+import { PythonResultResolver } from './resultResolver';
+
+/**
+ * Registry for Python test projects within workspaces.
+ *
+ * Manages the lifecycle of test projects including:
+ * - Discovering Python projects via Python Environments API
+ * - Creating and storing ProjectAdapter instances per workspace
+ * - Computing nested project relationships for ignore lists
+ * - Fallback to default "legacy" project when API unavailable
+ *
+ * **Key concepts:**
+ * - **Workspace:** A VS Code workspace folder (may contain multiple projects)
+ * - **Project:** A Python project within a workspace (identified by pyproject.toml, setup.py, etc.)
+ * - **ProjectUri:** The unique identifier for a project (the URI of the project root directory)
+ * - Each project gets its own test tree root, Python environment, and test adapters
+ *
+ * **Project identification:**
+ * Projects are identified and tracked by their URI (projectUri.toString()). This matches
+ * how the Python Environments extension stores projects in its Map<string, PythonProject>.
+ */
+export class TestProjectRegistry {
+    /**
+     * Map of workspace URI -> Map of project URI string -> ProjectAdapter
+     *
+     * Projects are keyed by their URI string (projectUri.toString()) which matches how
+     * the Python Environments extension identifies projects. This enables O(1) lookups
+     * when given a project URI.
+     */
+    private readonly workspaceProjects: Map<Uri, Map<string, ProjectAdapter>> = new Map();
+
+    constructor(
+        private readonly testController: TestController,
+        private readonly configSettings: IConfigurationService,
+        private readonly interpreterService: IInterpreterService,
+        private readonly envVarsService: IEnvironmentVariablesProvider,
+    ) {}
+
+    /**
+     * Gets the projects map for a workspace, if it exists.
+     */
+    public getWorkspaceProjects(workspaceUri: Uri): Map<string, ProjectAdapter> | undefined {
+        return this.workspaceProjects.get(workspaceUri);
+    }
+
+    /**
+     * Checks if a workspace has been initialized with projects.
+     */
+    public hasProjects(workspaceUri: Uri): boolean {
+        return this.workspaceProjects.has(workspaceUri);
+    }
+
+    /**
+     * Gets all projects for a workspace as an array.
+     */
+    public getProjectsArray(workspaceUri: Uri): ProjectAdapter[] {
+        const projectsMap = this.workspaceProjects.get(workspaceUri);
+        return projectsMap ? Array.from(projectsMap.values()) : [];
+    }
+
+    /**
+     * Discovers and registers all Python projects for a workspace.
+     * Returns the discovered projects for the caller to use.
+     */
+    public async discoverAndRegisterProjects(workspaceUri: Uri): Promise<ProjectAdapter[]> {
+        traceInfo(`[test-by-project] Discovering projects for workspace: ${workspaceUri.fsPath}`);
+
+        const projects = await this.discoverProjects(workspaceUri);
+
+        // Create map for this workspace, keyed by project URI
+        const projectsMap = new Map<string, ProjectAdapter>();
+        projects.forEach((project) => {
+            projectsMap.set(getProjectId(project.projectUri), project);
+        });
+
+        this.workspaceProjects.set(workspaceUri, projectsMap);
+        traceInfo(`[test-by-project] Registered ${projects.length} project(s) for ${workspaceUri.fsPath}`);
+
+        return projects;
+    }
+
+    /**
+     * Computes and populates nested project ignore lists for all projects in a workspace.
+     * Must be called before discovery to ensure parent projects ignore nested children.
+     */
+    public configureNestedProjectIgnores(workspaceUri: Uri): void {
+        const projectIgnores = this.computeNestedProjectIgnores(workspaceUri);
+        const projects = this.getProjectsArray(workspaceUri);
+
+        for (const project of projects) {
+            const ignorePaths = projectIgnores.get(getProjectId(project.projectUri));
+            if (ignorePaths && ignorePaths.length > 0) {
+                project.nestedProjectPathsToIgnore = ignorePaths;
+                traceInfo(`[test-by-project] ${project.projectName} will ignore nested: ${ignorePaths.join(', ')}`);
+            }
+        }
+    }
+
+    /**
+     * Clears all projects for a workspace.
+     */
+    public clearWorkspace(workspaceUri: Uri): void {
+        this.workspaceProjects.delete(workspaceUri);
+    }
+
+    // ====== Private Methods ======
+
+    /**
+     * Discovers Python projects in a workspace using the Python Environment API.
+     * Falls back to creating a single default project if API is unavailable.
+     */
+    private async discoverProjects(workspaceUri: Uri): Promise<ProjectAdapter[]> {
+        try {
+            if (!useEnvExtension()) {
+                traceInfo('[test-by-project] Python Environments API not available, using default project');
+                return [await this.createDefaultProject(workspaceUri)];
+            }
+
+            const envExtApi = await getEnvExtApi();
+            const allProjects = envExtApi.getPythonProjects();
+            traceInfo(`[test-by-project] Found ${allProjects.length} total Python projects from API`);
+
+            // Filter to projects within this workspace
+            const workspaceProjects = allProjects.filter((project) =>
+                isParentPath(project.uri.fsPath, workspaceUri.fsPath),
+            );
+            traceInfo(`[test-by-project] Filtered to ${workspaceProjects.length} projects in workspace`);
+
+            if (workspaceProjects.length === 0) {
+                traceInfo('[test-by-project] No projects found, creating default project');
+                return [await this.createDefaultProject(workspaceUri)];
+            }
+
+            // Create ProjectAdapter for each discovered project
+            const adapters: ProjectAdapter[] = [];
+            for (const pythonProject of workspaceProjects) {
+                try {
+                    const adapter = await this.createProjectAdapter(pythonProject, workspaceUri);
+                    adapters.push(adapter);
+                } catch (error) {
+                    traceError(`[test-by-project] Failed to create adapter for ${pythonProject.uri.fsPath}:`, error);
+                }
+            }
+
+            if (adapters.length === 0) {
+                traceInfo('[test-by-project] All adapters failed, falling back to default project');
+                return [await this.createDefaultProject(workspaceUri)];
+            }
+
+            return adapters;
+        } catch (error) {
+            traceError('[test-by-project] Discovery failed, using default project:', error);
+            return [await this.createDefaultProject(workspaceUri)];
+        }
+    }
+
+    /**
+     * Creates a ProjectAdapter from a PythonProject.
+     *
+     * Each project gets its own isolated test infrastructure:
+     * - **ResultResolver:** Handles mapping test IDs and processing results for this project
+     * - **DiscoveryAdapter:** Discovers tests scoped to this project's root directory
+     * - **ExecutionAdapter:** Runs tests for this project using its Python environment
+     *
+     */
+    private async createProjectAdapter(pythonProject: PythonProject, workspaceUri: Uri): Promise<ProjectAdapter> {
+        const projectId = getProjectId(pythonProject.uri);
+        traceInfo(`[test-by-project] Creating adapter for: ${pythonProject.name} at ${projectId}`);
+
+        // Resolve Python environment
+        const envExtApi = await getEnvExtApi();
+        const pythonEnvironment = await envExtApi.getEnvironment(pythonProject.uri);
+        if (!pythonEnvironment) {
+            throw new Error(`No Python environment found for project ${projectId}`);
+        }
+
+        // Create test infrastructure
+        const testProvider = this.getTestProvider(workspaceUri);
+        const projectDisplayName = createProjectDisplayName(pythonProject.name, pythonEnvironment.version);
+        const resultResolver = new PythonResultResolver(
+            this.testController,
+            testProvider,
+            workspaceUri,
+            projectId,
+            pythonProject.name, // Use simple project name for test tree label (without version)
+        );
+        const { discoveryAdapter, executionAdapter } = createTestAdapters(
+            testProvider,
+            resultResolver,
+            this.configSettings,
+            this.envVarsService,
+        );
+
+        return {
+            projectName: projectDisplayName,
+            projectUri: pythonProject.uri,
+            workspaceUri,
+            pythonProject,
+            pythonEnvironment,
+            testProvider,
+            discoveryAdapter,
+            executionAdapter,
+            resultResolver,
+            isDiscovering: false,
+            isExecuting: false,
+        };
+    }
+
+    /**
+     * Creates a default project for legacy/fallback mode.
+     */
+    private async createDefaultProject(workspaceUri: Uri): Promise<ProjectAdapter> {
+        traceInfo(`[test-by-project] Creating default project for: ${workspaceUri.fsPath}`);
+
+        const testProvider = this.getTestProvider(workspaceUri);
+        const resultResolver = new PythonResultResolver(this.testController, testProvider, workspaceUri);
+        const { discoveryAdapter, executionAdapter } = createTestAdapters(
+            testProvider,
+            resultResolver,
+            this.configSettings,
+            this.envVarsService,
+        );
+
+        const interpreter = await this.interpreterService.getActiveInterpreter(workspaceUri);
+
+        const pythonEnvironment: PythonEnvironment = {
+            name: 'default',
+            displayName: interpreter?.displayName || 'Python',
+            shortDisplayName: interpreter?.displayName || 'Python',
+            displayPath: interpreter?.path || 'python',
+            version: interpreter?.version?.raw || '3.x',
+            environmentPath: Uri.file(interpreter?.path || 'python'),
+            sysPrefix: interpreter?.sysPrefix || '',
+            execInfo: { run: { executable: interpreter?.path || 'python' } },
+            envId: { id: 'default', managerId: 'default' },
+        };
+
+        const pythonProject: PythonProject = {
+            name: path.basename(workspaceUri.fsPath) || 'workspace',
+            uri: workspaceUri,
+        };
+
+        return {
+            projectName: pythonProject.name,
+            projectUri: workspaceUri,
+            workspaceUri,
+            pythonProject,
+            pythonEnvironment,
+            testProvider,
+            discoveryAdapter,
+            executionAdapter,
+            resultResolver,
+            isDiscovering: false,
+            isExecuting: false,
+        };
+    }
+
+    /**
+     * Identifies nested projects and returns ignore paths for parent projects.
+     *
+     * **Time complexity:** O(n²) where n is the number of projects in the workspace.
+     * For each project, checks all other projects to find nested relationships.
+     *
+     * Note: Uses path.normalize() to handle Windows path separator inconsistencies
+     * (e.g., paths from URI.fsPath may have mixed separators).
+     */
+    private computeNestedProjectIgnores(workspaceUri: Uri): Map<string, string[]> {
+        const ignoreMap = new Map<string, string[]>();
+        const projects = this.getProjectsArray(workspaceUri);
+
+        if (projects.length === 0) return ignoreMap;
+
+        for (const parent of projects) {
+            const nestedPaths: string[] = [];
+
+            for (const child of projects) {
+                // Skip self-comparison using URI
+                if (parent.projectUri.toString() === child.projectUri.toString()) continue;
+
+                // Normalize paths to handle Windows path separator inconsistencies
+                const parentNormalized = path.normalize(parent.projectUri.fsPath);
+                const childNormalized = path.normalize(child.projectUri.fsPath);
+
+                // Add trailing separator to ensure we match directory boundaries
+                const parentWithSep = parentNormalized.endsWith(path.sep)
+                    ? parentNormalized
+                    : parentNormalized + path.sep;
+                const childWithSep = childNormalized.endsWith(path.sep) ? childNormalized : childNormalized + path.sep;
+
+                // Check if child is inside parent (case-insensitive for Windows)
+                const childIsInsideParent = childWithSep.toLowerCase().startsWith(parentWithSep.toLowerCase());
+
+                if (childIsInsideParent) {
+                    nestedPaths.push(child.projectUri.fsPath);
+                    traceInfo(`[test-by-project] Nested: ${child.projectName} is inside ${parent.projectName}`);
+                }
+            }
+
+            if (nestedPaths.length > 0) {
+                ignoreMap.set(getProjectId(parent.projectUri), nestedPaths);
+            }
+        }
+
+        return ignoreMap;
+    }
+
+    /**
+     * Determines the test provider based on workspace settings.
+     */
+    private getTestProvider(workspaceUri: Uri): TestProvider {
+        const settings = this.configSettings.getSettings(workspaceUri);
+        return settings.testing.unittestEnabled ? UNITTEST_PROVIDER : 'pytest';
+    }
+}
diff --git a/src/client/testing/testController/common/types.ts b/src/client/testing/testController/common/types.ts
index 6121b3e24442..017c41cf3d97 100644
--- a/src/client/testing/testController/common/types.ts
+++ b/src/client/testing/testController/common/types.ts
@@ -16,6 +16,7 @@ import {
 import { ITestDebugLauncher } from '../../common/types';
 import { IPythonExecutionFactory } from '../../../common/process/types';
 import { PythonEnvironment } from '../../../pythonEnvironments/info';
+import { ProjectAdapter } from './projectAdapter';
 
 export enum TestDataKinds {
     Workspace,
@@ -142,10 +143,18 @@ export type TestCommandOptions = {
 //     triggerRunDataReceivedEvent(data: DataReceivedEvent): void;
 //     triggerDiscoveryDataReceivedEvent(data: DataReceivedEvent): void;
 // }
-export interface ITestResultResolver {
+
+/**
+ * Test item mapping interface used by populateTestTree.
+ * Contains only the maps needed for building the test tree.
+ */
+export interface ITestItemMappings {
     runIdToVSid: Map<string, string>;
     runIdToTestItem: Map<string, TestItem>;
     vsIdToRunId: Map<string, string>;
+}
+
+export interface ITestResultResolver extends ITestItemMappings {
     detailedCoverageMap: Map<string, FileCoverageDetail[]>;
 
     resolveDiscovery(payload: DiscoveredTestPayload, token?: CancellationToken): void;
@@ -160,6 +169,7 @@ export interface ITestDiscoveryAdapter {
         executionFactory: IPythonExecutionFactory,
         token?: CancellationToken,
         interpreter?: PythonEnvironment,
+        project?: ProjectAdapter,
     ): Promise<void>;
 }
 
@@ -173,6 +183,7 @@ export interface ITestExecutionAdapter {
         executionFactory: IPythonExecutionFactory,
         debugLauncher?: ITestDebugLauncher,
         interpreter?: PythonEnvironment,
+        project?: ProjectAdapter,
     ): Promise<void>;
 }
 
diff --git a/src/client/testing/testController/common/utils.ts b/src/client/testing/testController/common/utils.ts
index 7c2a3da42696..9782487d940b 100644
--- a/src/client/testing/testController/common/utils.ts
+++ b/src/client/testing/testController/common/utils.ts
@@ -13,11 +13,12 @@ import {
     DiscoveredTestNode,
     DiscoveredTestPayload,
     ExecutionTestPayload,
-    ITestResultResolver,
+    ITestItemMappings,
 } from './types';
 import { Deferred, createDeferred } from '../../../common/utils/async';
 import { createReaderPipe, generateRandomPipeName } from '../../../common/pipes/namedPipes';
 import { EXTENSION_ROOT_DIR } from '../../../constants';
+import { PROJECT_ID_SEPARATOR } from './projectUtils';
 
 export function fixLogLinesNoTrailing(content: string): string {
     const lines = content.split(/\r?\n/g);
@@ -196,7 +197,12 @@ function extractMissingModuleName(message: string): string | undefined {
     return undefined;
 }
 
-export function buildErrorNodeOptions(uri: Uri, message: string, testType: string): ErrorTestItemOptions {
+export function buildErrorNodeOptions(
+    uri: Uri,
+    message: string,
+    testType: string,
+    projectName?: string,
+): ErrorTestItemOptions {
     let labelText = testType === 'pytest' ? 'pytest Discovery Error' : 'Unittest Discovery Error';
     let errorMessage = message;
 
@@ -207,9 +213,12 @@ export function buildErrorNodeOptions(uri: Uri, message: string, testType: strin
         errorMessage = `The module '${missingModule}' is not installed in the selected Python environment. Please install it to enable test discovery.`;
     }
 
+    // Use project name for label if available (project-based testing), otherwise use folder name
+    const displayName = projectName ?? path.basename(uri.fsPath);
+
     return {
         id: `DiscoveryError:${uri.fsPath}`,
-        label: `${labelText} [${path.basename(uri.fsPath)}]`,
+        label: `${labelText} [${displayName}]`,
         error: errorMessage,
     };
 }
@@ -218,12 +227,18 @@ export function populateTestTree(
     testController: TestController,
     testTreeData: DiscoveredTestNode,
     testRoot: TestItem | undefined,
-    resultResolver: ITestResultResolver,
+    testItemMappings: ITestItemMappings,
     token?: CancellationToken,
+    projectId?: string,
+    projectName?: string,
 ): void {
     // If testRoot is undefined, use the info of the root item of testTreeData to create a test item, and append it to the test controller.
     if (!testRoot) {
-        testRoot = testController.createTestItem(testTreeData.path, testTreeData.name, Uri.file(testTreeData.path));
+        // Create project-scoped ID if projectId is provided
+        const rootId = projectId ? `${projectId}${PROJECT_ID_SEPARATOR}${testTreeData.path}` : testTreeData.path;
+        // Use "Project: {name}" label for project-based testing, otherwise use folder name
+        const rootLabel = projectName ? `Project: ${projectName}` : testTreeData.name;
+        testRoot = testController.createTestItem(rootId, rootLabel, Uri.file(testTreeData.path));
 
         testRoot.canResolveChildren = true;
         testRoot.tags = [RunTestTag, DebugTestTag];
@@ -235,7 +250,9 @@ export function populateTestTree(
     testTreeData.children.forEach((child) => {
         if (!token?.isCancellationRequested) {
             if (isTestItem(child)) {
-                const testItem = testController.createTestItem(child.id_, child.name, Uri.file(child.path));
+                // Create project-scoped vsId
+                const vsId = projectId ? `${projectId}${PROJECT_ID_SEPARATOR}${child.id_}` : child.id_;
+                const testItem = testController.createTestItem(vsId, child.name, Uri.file(child.path));
                 testItem.tags = [RunTestTag, DebugTestTag];
 
                 let range: Range | undefined;
@@ -254,15 +271,17 @@ export function populateTestTree(
                 testItem.tags = [RunTestTag, DebugTestTag];
 
                 testRoot!.children.add(testItem);
-                // add to our map
-                resultResolver.runIdToTestItem.set(child.runID, testItem);
-                resultResolver.runIdToVSid.set(child.runID, child.id_);
-                resultResolver.vsIdToRunId.set(child.id_, child.runID);
+                // add to our map - use runID as key, vsId as value
+                testItemMappings.runIdToTestItem.set(child.runID, testItem);
+                testItemMappings.runIdToVSid.set(child.runID, vsId);
+                testItemMappings.vsIdToRunId.set(vsId, child.runID);
             } else {
-                let node = testController.items.get(child.path);
+                // Use project-scoped ID for non-test nodes and look up within the current root
+                const nodeId = projectId ? `${projectId}${PROJECT_ID_SEPARATOR}${child.id_}` : child.id_;
+                let node = testRoot!.children.get(nodeId);
 
                 if (!node) {
-                    node = testController.createTestItem(child.id_, child.name, Uri.file(child.path));
+                    node = testController.createTestItem(nodeId, child.name, Uri.file(child.path));
 
                     node.canResolveChildren = true;
                     node.tags = [RunTestTag, DebugTestTag];
@@ -283,7 +302,7 @@ export function populateTestTree(
 
                     testRoot!.children.add(node);
                 }
-                populateTestTree(testController, child, node, resultResolver, token);
+                populateTestTree(testController, child, node, testItemMappings, token, projectId, projectName);
             }
         }
     });
diff --git a/src/client/testing/testController/controller.ts b/src/client/testing/testController/controller.ts
index 8c8ce422e3c1..04de209c171d 100644
--- a/src/client/testing/testController/controller.ts
+++ b/src/client/testing/testController/controller.ts
@@ -29,29 +29,25 @@ import { IConfigurationService, IDisposableRegistry, Resource } from '../../comm
 import { DelayedTrigger, IDelayedTrigger } from '../../common/utils/delayTrigger';
 import { noop } from '../../common/utils/misc';
 import { IInterpreterService } from '../../interpreter/contracts';
-import { traceError, traceVerbose } from '../../logging';
+import { traceError, traceInfo, traceVerbose } from '../../logging';
 import { IEventNamePropertyMapping, sendTelemetryEvent } from '../../telemetry';
 import { EventName } from '../../telemetry/constants';
 import { PYTEST_PROVIDER, UNITTEST_PROVIDER } from '../common/constants';
 import { TestProvider } from '../types';
 import { createErrorTestItem, DebugTestTag, getNodeByUri, RunTestTag } from './common/testItemUtilities';
 import { buildErrorNodeOptions } from './common/utils';
-import {
-    ITestController,
-    ITestDiscoveryAdapter,
-    ITestFrameworkController,
-    TestRefreshOptions,
-    ITestExecutionAdapter,
-} from './common/types';
-import { UnittestTestDiscoveryAdapter } from './unittest/testDiscoveryAdapter';
-import { UnittestTestExecutionAdapter } from './unittest/testExecutionAdapter';
-import { PytestTestDiscoveryAdapter } from './pytest/pytestDiscoveryAdapter';
-import { PytestTestExecutionAdapter } from './pytest/pytestExecutionAdapter';
+import { ITestController, ITestFrameworkController, TestRefreshOptions } from './common/types';
 import { WorkspaceTestAdapter } from './workspaceTestAdapter';
 import { ITestDebugLauncher } from '../common/types';
 import { PythonResultResolver } from './common/resultResolver';
 import { onDidSaveTextDocument } from '../../common/vscodeApis/workspaceApis';
 import { IEnvironmentVariablesProvider } from '../../common/variables/types';
+import { ProjectAdapter } from './common/projectAdapter';
+import { TestProjectRegistry } from './common/testProjectRegistry';
+import { createTestAdapters, getProjectId } from './common/projectUtils';
+import { executeTestsForProjects } from './common/projectTestExecution';
+import { useEnvExtension, getEnvExtApi } from '../../envExt/api.internal';
+import { DidChangePythonProjectsEventArgs, PythonProject } from '../../envExt/types';
 
 // Types gymnastics to make sure that sendTriggerTelemetry only accepts the correct types.
 type EventPropertyType = IEventNamePropertyMapping[EventName.UNITTEST_DISCOVERY_TRIGGER];
@@ -62,8 +58,12 @@ type TriggerType = EventPropertyType[TriggerKeyType];
 export class PythonTestController implements ITestController, IExtensionSingleActivationService {
     public readonly supportedWorkspaceTypes = { untrustedWorkspace: false, virtualWorkspace: false };
 
+    // Legacy: Single workspace test adapter per workspace (backward compatibility)
     private readonly testAdapters: Map<Uri, WorkspaceTestAdapter> = new Map();
 
+    // Registry for multi-project testing (one registry instance manages all projects across workspaces)
+    private readonly projectRegistry: TestProjectRegistry;
+
     private readonly triggerTypes: TriggerType[] = [];
 
     private readonly testController: TestController;
@@ -105,6 +105,14 @@ export class PythonTestController implements ITestController, IExtensionSingleAc
         this.testController = tests.createTestController('python-tests', 'Python Tests');
         this.disposables.push(this.testController);
 
+        // Initialize project registry for multi-project testing support
+        this.projectRegistry = new TestProjectRegistry(
+            this.testController,
+            this.configSettings,
+            this.interpreterService,
+            this.envVarsService,
+        );
+
         const delayTrigger = new DelayedTrigger(
             (uri: Uri, invalidate: boolean) => {
                 this.refreshTestDataInternal(uri);
@@ -160,60 +168,260 @@ export class PythonTestController implements ITestController, IExtensionSingleAc
         };
     }
 
+    /**
+     * Determines the test provider (pytest or unittest) based on workspace settings.
+     */
+    private getTestProvider(workspaceUri: Uri): TestProvider {
+        const settings = this.configSettings.getSettings(workspaceUri);
+        return settings.testing.unittestEnabled ? UNITTEST_PROVIDER : PYTEST_PROVIDER;
+    }
+
+    /**
+     * Sets up file watchers for test discovery triggers.
+     */
+    private setupFileWatchers(workspace: WorkspaceFolder): void {
+        const settings = this.configSettings.getSettings(workspace.uri);
+        if (settings.testing.autoTestDiscoverOnSaveEnabled) {
+            traceVerbose(`Testing: Setting up watcher for ${workspace.uri.fsPath}`);
+            this.watchForSettingsChanges(workspace);
+            this.watchForTestContentChangeOnSave();
+        }
+    }
+
+    /**
+     * Activates the test controller for all workspaces.
+     *
+     * Two activation modes:
+     * 1. **Project-based mode** (when Python Environments API available):
+     * 2. **Legacy mode** (fallback):
+     *
+     * Uses `Promise.allSettled` for resilient multi-workspace activation:
+     */
     public async activate(): Promise<void> {
         const workspaces: readonly WorkspaceFolder[] = this.workspaceService.workspaceFolders || [];
+
+        // PROJECT-BASED MODE: Uses Python Environments API to discover projects
+        // Each project becomes its own test tree root with its own Python environment
+        if (useEnvExtension()) {
+            traceInfo('[test-by-project] Activating project-based testing mode');
+
+            // Discover projects in parallel across all workspaces
+            // Promise.allSettled ensures one workspace failure doesn't block others
+            const results = await Promise.allSettled(
+                Array.from(workspaces).map(async (workspace) => {
+                    // Queries Python Environments API and creates ProjectAdapter instances
+                    const projects = await this.projectRegistry.discoverAndRegisterProjects(workspace.uri);
+                    return { workspace, projectCount: projects.length };
+                }),
+            );
+
+            // Process results: successful workspaces get file watchers, failed ones fall back to legacy
+            results.forEach((result, index) => {
+                const workspace = workspaces[index];
+                if (result.status === 'fulfilled') {
+                    traceInfo(
+                        `[test-by-project] Activated ${result.value.projectCount} project(s) for ${workspace.uri.fsPath}`,
+                    );
+                    this.setupFileWatchers(workspace);
+                } else {
+                    // Graceful degradation: if project discovery fails, use legacy single-adapter mode
+                    traceError(`[test-by-project] Failed for ${workspace.uri.fsPath}:`, result.reason);
+                    this.activateLegacyWorkspace(workspace);
+                }
+            });
+            // Subscribe to project changes to update test tree when projects are added/removed
+            await this.subscribeToProjectChanges();
+            return;
+        }
+
+        // LEGACY MODE: Single WorkspaceTestAdapter per workspace (backward compatibility)
         workspaces.forEach((workspace) => {
-            const settings = this.configSettings.getSettings(workspace.uri);
+            this.activateLegacyWorkspace(workspace);
+        });
+    }
+
+    /**
+     * Subscribes to Python project changes from the Python Environments API.
+     * When projects are added or removed, updates the test tree accordingly.
+     */
+    private async subscribeToProjectChanges(): Promise<void> {
+        try {
+            const envExtApi = await getEnvExtApi();
+            this.disposables.push(
+                envExtApi.onDidChangePythonProjects((event: DidChangePythonProjectsEventArgs) => {
+                    this.handleProjectChanges(event).catch((error) => {
+                        traceError('[test-by-project] Error handling project changes:', error);
+                    });
+                }),
+            );
+            traceInfo('[test-by-project] Subscribed to Python project changes');
+        } catch (error) {
+            traceError('[test-by-project] Failed to subscribe to project changes:', error);
+        }
+    }
 
-            let discoveryAdapter: ITestDiscoveryAdapter;
-            let executionAdapter: ITestExecutionAdapter;
-            let testProvider: TestProvider;
-            let resultResolver: PythonResultResolver;
+    /**
+     * Handles changes to Python projects (added or removed).
+     * Cleans up stale test items and re-discovers projects and tests for affected workspaces.
+     */
+    private async handleProjectChanges(event: DidChangePythonProjectsEventArgs): Promise<void> {
+        const { added, removed } = event;
 
-            if (settings.testing.unittestEnabled) {
-                testProvider = UNITTEST_PROVIDER;
-                resultResolver = new PythonResultResolver(this.testController, testProvider, workspace.uri);
-                discoveryAdapter = new UnittestTestDiscoveryAdapter(
-                    this.configSettings,
-                    resultResolver,
-                    this.envVarsService,
-                );
-                executionAdapter = new UnittestTestExecutionAdapter(
-                    this.configSettings,
-                    resultResolver,
-                    this.envVarsService,
-                );
-            } else {
-                testProvider = PYTEST_PROVIDER;
-                resultResolver = new PythonResultResolver(this.testController, testProvider, workspace.uri);
-                discoveryAdapter = new PytestTestDiscoveryAdapter(
-                    this.configSettings,
-                    resultResolver,
-                    this.envVarsService,
-                );
-                executionAdapter = new PytestTestExecutionAdapter(
-                    this.configSettings,
-                    resultResolver,
-                    this.envVarsService,
-                );
+        if (added.length === 0 && removed.length === 0) {
+            return;
+        }
+
+        traceInfo(`[test-by-project] Project changes detected: ${added.length} added, ${removed.length} removed`);
+
+        // Find all affected workspaces
+        const affectedWorkspaces = new Set<WorkspaceFolder>();
+
+        const findWorkspace = (project: PythonProject): WorkspaceFolder | undefined => {
+            return this.workspaceService.getWorkspaceFolder(project.uri);
+        };
+
+        for (const project of [...added, ...removed]) {
+            const workspace = findWorkspace(project);
+            if (workspace) {
+                affectedWorkspaces.add(workspace);
             }
+        }
 
-            const workspaceTestAdapter = new WorkspaceTestAdapter(
-                testProvider,
-                discoveryAdapter,
-                executionAdapter,
-                workspace.uri,
-                resultResolver,
-            );
+        // For each affected workspace, clean up and re-discover
+        for (const workspace of affectedWorkspaces) {
+            traceInfo(`[test-by-project] Re-discovering projects for workspace: ${workspace.uri.fsPath}`);
 
-            this.testAdapters.set(workspace.uri, workspaceTestAdapter);
+            // Get the current projects before clearing to know what to clean up
+            const existingProjects = this.projectRegistry.getProjectsArray(workspace.uri);
 
-            if (settings.testing.autoTestDiscoverOnSaveEnabled) {
-                traceVerbose(`Testing: Setting up watcher for ${workspace.uri.fsPath}`);
-                this.watchForSettingsChanges(workspace);
-                this.watchForTestContentChangeOnSave();
+            // Remove ALL test items for the affected workspace's projects
+            // This ensures no stale items remain from deleted/changed projects
+            this.removeWorkspaceProjectTestItems(workspace.uri, existingProjects);
+
+            // Also explicitly remove test items for removed projects (in case they weren't tracked)
+            for (const project of removed) {
+                const projectWorkspace = findWorkspace(project);
+                if (projectWorkspace?.uri.toString() === workspace.uri.toString()) {
+                    this.removeProjectTestItems(project);
+                }
+            }
+
+            // Re-discover all projects and tests for the workspace in a single pass.
+            // discoverAllProjectsInWorkspace is responsible for clearing/re-registering
+            // projects and performing test discovery for the workspace.
+            await this.discoverAllProjectsInWorkspace(workspace.uri);
+        }
+    }
+
+    /**
+     * Removes all test items associated with projects in a workspace.
+     * Used to clean up stale items before re-discovery.
+     */
+    private removeWorkspaceProjectTestItems(workspaceUri: Uri, projects: ProjectAdapter[]): void {
+        const idsToRemove: string[] = [];
+
+        // Collect IDs of test items belonging to any project in this workspace
+        for (const project of projects) {
+            const projectIdPrefix = getProjectId(project.projectUri);
+            const projectFsPath = project.projectUri.fsPath;
+
+            this.testController.items.forEach((item) => {
+                // Match by project ID prefix (e.g., "file:///path@@vsc@@...")
+                if (item.id.startsWith(projectIdPrefix)) {
+                    idsToRemove.push(item.id);
+                }
+                // Match by fsPath in ID (legacy items might use path directly)
+                else if (item.id.includes(projectFsPath)) {
+                    idsToRemove.push(item.id);
+                }
+                // Match by item URI being within project directory
+                else if (item.uri && item.uri.fsPath.startsWith(projectFsPath)) {
+                    idsToRemove.push(item.id);
+                }
+            });
+        }
+
+        // Also remove any items whose URI is within the workspace (catch-all for edge cases)
+        this.testController.items.forEach((item) => {
+            if (
+                item.uri &&
+                this.workspaceService.getWorkspaceFolder(item.uri)?.uri.toString() === workspaceUri.toString()
+            ) {
+                if (!idsToRemove.includes(item.id)) {
+                    idsToRemove.push(item.id);
+                }
             }
         });
+
+        // Remove all collected items
+        for (const id of idsToRemove) {
+            this.testController.items.delete(id);
+        }
+
+        traceInfo(
+            `[test-by-project] Cleaned up ${idsToRemove.length} test items for workspace: ${workspaceUri.fsPath}`,
+        );
+    }
+
+    /**
+     * Removes test items associated with a specific project from the test controller.
+     * Matches items by project ID prefix, fsPath, or URI.
+     */
+    private removeProjectTestItems(project: PythonProject): void {
+        const projectId = getProjectId(project.uri);
+        const projectFsPath = project.uri.fsPath;
+        const idsToRemove: string[] = [];
+
+        // Find all root items that belong to this project
+        this.testController.items.forEach((item) => {
+            // Match by project ID prefix (e.g., "file:///path@@vsc@@...")
+            if (item.id.startsWith(projectId)) {
+                idsToRemove.push(item.id);
+            }
+            // Match by fsPath in ID (items might use path directly without URI prefix)
+            else if (item.id.startsWith(projectFsPath) || item.id.includes(projectFsPath)) {
+                idsToRemove.push(item.id);
+            }
+            // Match by item URI being within project directory
+            else if (item.uri && item.uri.fsPath.startsWith(projectFsPath)) {
+                idsToRemove.push(item.id);
+            }
+        });
+
+        for (const id of idsToRemove) {
+            this.testController.items.delete(id);
+            traceVerbose(`[test-by-project] Removed test item: ${id}`);
+        }
+
+        if (idsToRemove.length > 0) {
+            traceInfo(`[test-by-project] Removed ${idsToRemove.length} test items for project: ${project.name}`);
+        }
+    }
+
+    /**
+     * Activates testing for a workspace using the legacy single-adapter approach.
+     * Used for backward compatibility when project-based testing is disabled or unavailable.
+     */
+    private activateLegacyWorkspace(workspace: WorkspaceFolder): void {
+        const testProvider = this.getTestProvider(workspace.uri);
+        const resultResolver = new PythonResultResolver(this.testController, testProvider, workspace.uri);
+        const { discoveryAdapter, executionAdapter } = createTestAdapters(
+            testProvider,
+            resultResolver,
+            this.configSettings,
+            this.envVarsService,
+        );
+
+        const workspaceTestAdapter = new WorkspaceTestAdapter(
+            testProvider,
+            discoveryAdapter,
+            executionAdapter,
+            workspace.uri,
+            resultResolver,
+        );
+
+        this.testAdapters.set(workspace.uri, workspaceTestAdapter);
+        this.setupFileWatchers(workspace);
     }
 
     public refreshTestData(uri?: Resource, options?: TestRefreshOptions): Promise<void> {
@@ -255,9 +463,9 @@ export class PythonTestController implements ITestController, IExtensionSingleAc
         this.refreshingStartedEvent.fire();
         try {
             if (uri) {
-                await this.refreshSingleWorkspace(uri);
+                await this.discoverTestsInWorkspace(uri);
             } else {
-                await this.refreshAllWorkspaces();
+                await this.discoverTestsInAllWorkspaces();
             }
         } finally {
             this.refreshingCompletedEvent.fire();
@@ -266,8 +474,18 @@ export class PythonTestController implements ITestController, IExtensionSingleAc
 
     /**
      * Discovers tests for a single workspace.
+     *
+     * **Discovery flow:**
+     * 1. If the workspace has registered projects (via Python Environments API),
+     *    uses project-based discovery: each project is discovered independently
+     *    with its own Python environment and test adapters.
+     * 2. Otherwise, falls back to legacy mode: a single WorkspaceTestAdapter
+     *    discovers all tests in the workspace using the active interpreter.
+     *
+     * In project-based mode, the test tree will have separate roots for each project.
+     * In legacy mode, the workspace folder is the single test tree root.
      */
-    private async refreshSingleWorkspace(uri: Uri): Promise<void> {
+    private async discoverTestsInWorkspace(uri: Uri): Promise<void> {
         const workspace = this.workspaceService.getWorkspaceFolder(uri);
         if (!workspace?.uri) {
             traceError('Unable to find workspace for given file');
@@ -280,40 +498,137 @@ export class PythonTestController implements ITestController, IExtensionSingleAc
         // Ensure we send test telemetry if it gets disabled again
         this.sendTestDisabledTelemetry = true;
 
+        // Check if any test framework is enabled BEFORE project-based discovery
+        // This ensures the config screen stays visible when testing is disabled
+        if (!settings.testing.pytestEnabled && !settings.testing.unittestEnabled) {
+            await this.handleNoTestProviderEnabled(workspace);
+            return;
+        }
+
+        // Use project-based discovery if applicable (only reached if testing is enabled)
+        if (this.projectRegistry.hasProjects(workspace.uri)) {
+            await this.discoverAllProjectsInWorkspace(workspace.uri);
+            return;
+        }
+
+        // Legacy mode: Single workspace adapter
         if (settings.testing.pytestEnabled) {
-            await this.discoverTestsForProvider(workspace.uri, 'pytest');
+            await this.discoverWorkspaceTestsLegacy(workspace.uri, 'pytest');
         } else if (settings.testing.unittestEnabled) {
-            await this.discoverTestsForProvider(workspace.uri, 'unittest');
-        } else {
-            await this.handleNoTestProviderEnabled(workspace);
+            await this.discoverWorkspaceTestsLegacy(workspace.uri, 'unittest');
         }
     }
 
     /**
-     * Discovers tests for all workspaces in the workspace folders.
+     * Discovers tests for all projects within a workspace (project-based mode).
+     * Re-discovers projects from the Python Environments API before running test discovery.
+     * This ensures the test tree stays in sync with project changes.
      */
-    private async refreshAllWorkspaces(): Promise<void> {
+    private async discoverAllProjectsInWorkspace(workspaceUri: Uri): Promise<void> {
+        // Defensive check: ensure testing is enabled (should be checked by caller, but be safe)
+        const settings = this.configSettings.getSettings(workspaceUri);
+        if (!settings.testing.pytestEnabled && !settings.testing.unittestEnabled) {
+            traceVerbose('[test-by-project] Skipping discovery - no test framework enabled');
+            return;
+        }
+
+        // Get existing projects before re-discovery for cleanup
+        const existingProjects = this.projectRegistry.getProjectsArray(workspaceUri);
+
+        // Clean up all existing test items for this workspace
+        // This ensures stale items from deleted/changed projects are removed
+        this.removeWorkspaceProjectTestItems(workspaceUri, existingProjects);
+
+        // Re-discover projects from Python Environments API
+        // This picks up any added/removed projects since last discovery
+        this.projectRegistry.clearWorkspace(workspaceUri);
+        const projects = await this.projectRegistry.discoverAndRegisterProjects(workspaceUri);
+
+        if (projects.length === 0) {
+            traceError(`[test-by-project] No projects found for workspace: ${workspaceUri.fsPath}`);
+            return;
+        }
+
+        traceInfo(`[test-by-project] Starting discovery for ${projects.length} project(s) in workspace`);
+
+        try {
+            // Configure nested project exclusions before discovery
+            this.projectRegistry.configureNestedProjectIgnores(workspaceUri);
+
+            // Track completion for progress logging
+            const projectsCompleted = new Set<string>();
+
+            // Run discovery for all projects in parallel
+            await Promise.all(projects.map((project) => this.discoverTestsForProject(project, projectsCompleted)));
+
+            traceInfo(
+                `[test-by-project] Discovery complete: ${projectsCompleted.size}/${projects.length} projects completed`,
+            );
+        } catch (error) {
+            traceError(`[test-by-project] Discovery failed for workspace ${workspaceUri.fsPath}:`, error);
+        }
+    }
+
+    /**
+     * Discovers tests for a single project (project-based mode).
+     * Creates test tree items rooted at the project's directory.
+     */
+    private async discoverTestsForProject(project: ProjectAdapter, projectsCompleted: Set<string>): Promise<void> {
+        try {
+            traceInfo(`[test-by-project] Discovering tests for project: ${project.projectName}`);
+            project.isDiscovering = true;
+
+            // In project-based mode, the discovery adapter uses the Python Environments API
+            // to get the environment directly, so we don't need to pass the interpreter
+            await project.discoveryAdapter.discoverTests(
+                project.projectUri,
+                this.pythonExecFactory,
+                this.refreshCancellation.token,
+                undefined, // Interpreter not needed; adapter uses Python Environments API
+                project,
+            );
+
+            // Mark project as completed (use URI string as unique key)
+            projectsCompleted.add(project.projectUri.toString());
+            traceInfo(`[test-by-project] Project ${project.projectName} discovery completed`);
+        } catch (error) {
+            traceError(`[test-by-project] Discovery failed for project ${project.projectName}:`, error);
+            // Individual project failures don't block others
+            projectsCompleted.add(project.projectUri.toString()); // Still mark as completed
+        } finally {
+            project.isDiscovering = false;
+        }
+    }
+
+    /**
+     * Discovers tests across all workspace folders.
+     * Iterates each workspace and triggers discovery.
+     */
+    private async discoverTestsInAllWorkspaces(): Promise<void> {
         traceVerbose('Testing: Refreshing all test data');
         const workspaces: readonly WorkspaceFolder[] = this.workspaceService.workspaceFolders || [];
 
         await Promise.all(
             workspaces.map(async (workspace) => {
-                if (!(await this.interpreterService.getActiveInterpreter(workspace.uri))) {
-                    this.commandManager
-                        .executeCommand(constants.Commands.TriggerEnvironmentSelection, workspace.uri)
-                        .then(noop, noop);
-                    return;
+                // In project-based mode, each project has its own environment,
+                // so we don't require a global active interpreter
+                if (!useEnvExtension()) {
+                    if (!(await this.interpreterService.getActiveInterpreter(workspace.uri))) {
+                        this.commandManager
+                            .executeCommand(constants.Commands.TriggerEnvironmentSelection, workspace.uri)
+                            .then(noop, noop);
+                        return;
+                    }
                 }
-                await this.refreshSingleWorkspace(workspace.uri);
+                await this.discoverTestsInWorkspace(workspace.uri);
             }),
         );
     }
 
     /**
-     * Discovers tests for a specific test provider (pytest or unittest).
-     * Validates that the adapter's provider matches the expected provider.
+     * Discovers tests for a workspace using legacy single-adapter mode.
      */
-    private async discoverTestsForProvider(workspaceUri: Uri, expectedProvider: TestProvider): Promise<void> {
+    private async discoverWorkspaceTestsLegacy(workspaceUri: Uri, expectedProvider: TestProvider): Promise<void> {
         const testAdapter = this.testAdapters.get(workspaceUri);
 
         if (!testAdapter) {
@@ -386,9 +701,13 @@ export class PythonTestController implements ITestController, IExtensionSingleAc
             const workspaces: readonly WorkspaceFolder[] = this.workspaceService.workspaceFolders || [];
             await Promise.all(
                 workspaces.map(async (workspace) => {
-                    if (!(await this.interpreterService.getActiveInterpreter(workspace.uri))) {
-                        traceError('Cannot trigger test discovery as a valid interpreter is not selected');
-                        return;
+                    // In project-based mode, each project has its own environment,
+                    // so we don't require a global active interpreter
+                    if (!useEnvExtension()) {
+                        if (!(await this.interpreterService.getActiveInterpreter(workspace.uri))) {
+                            traceError('Cannot trigger test discovery as a valid interpreter is not selected');
+                            return;
+                        }
                     }
                     await this.refreshTestDataInternal(workspace.uri);
                 }),
@@ -472,8 +791,30 @@ export class PythonTestController implements ITestController, IExtensionSingleAc
             return;
         }
 
-        const testAdapter =
-            this.testAdapters.get(workspace.uri) || (this.testAdapters.values().next().value as WorkspaceTestAdapter);
+        // Check if we're in project-based mode and should use project-specific execution
+        if (this.projectRegistry.hasProjects(workspace.uri)) {
+            const projects = this.projectRegistry.getProjectsArray(workspace.uri);
+            await executeTestsForProjects(projects, testItems, runInstance, request, token, {
+                projectRegistry: this.projectRegistry,
+                pythonExecFactory: this.pythonExecFactory,
+                debugLauncher: this.debugLauncher,
+            });
+            return;
+        }
+
+        // For unittest (or pytest when not in project mode), use the legacy WorkspaceTestAdapter.
+        // In project mode, legacy adapters may not be initialized, so create one on demand.
+        let testAdapter = this.testAdapters.get(workspace.uri);
+        if (!testAdapter) {
+            // Initialize legacy adapter on demand (needed for unittest in project mode)
+            this.activateLegacyWorkspace(workspace);
+            testAdapter = this.testAdapters.get(workspace.uri);
+        }
+
+        if (!testAdapter) {
+            traceError(`[test] No test adapter available for workspace: ${workspace.uri.fsPath}`);
+            return;
+        }
 
         this.setupCoverageIfNeeded(request, testAdapter);
 
diff --git a/src/client/testing/testController/pytest/pytestDiscoveryAdapter.ts b/src/client/testing/testController/pytest/pytestDiscoveryAdapter.ts
index 7ad69c71fa0e..16e27635e66c 100644
--- a/src/client/testing/testController/pytest/pytestDiscoveryAdapter.ts
+++ b/src/client/testing/testController/pytest/pytestDiscoveryAdapter.ts
@@ -19,6 +19,7 @@ import { PythonEnvironment } from '../../../pythonEnvironments/info';
 import { useEnvExtension, getEnvironment, runInBackground } from '../../../envExt/api.internal';
 import { buildPytestEnv as configureSubprocessEnv, handleSymlinkAndRootDir } from './pytestHelpers';
 import { cleanupOnCancellation, createProcessHandlers, setupDiscoveryPipe } from '../common/discoveryHelpers';
+import { ProjectAdapter } from '../common/projectAdapter';
 
 /**
  * Configures the subprocess environment for pytest discovery.
@@ -53,6 +54,7 @@ export class PytestTestDiscoveryAdapter implements ITestDiscoveryAdapter {
         executionFactory: IPythonExecutionFactory,
         token?: CancellationToken,
         interpreter?: PythonEnvironment,
+        project?: ProjectAdapter,
     ): Promise<void> {
         // Setup discovery pipe and cancellation
         const {
@@ -76,6 +78,18 @@ export class PytestTestDiscoveryAdapter implements ITestDiscoveryAdapter {
             let { pytestArgs } = settings.testing;
             const cwd = settings.testing.cwd && settings.testing.cwd.length > 0 ? settings.testing.cwd : uri.fsPath;
             pytestArgs = await handleSymlinkAndRootDir(cwd, pytestArgs);
+
+            // Add --ignore flags for nested projects to prevent duplicate discovery
+            if (project?.nestedProjectPathsToIgnore?.length) {
+                const ignoreArgs = project.nestedProjectPathsToIgnore.map((nestedPath) => `--ignore=${nestedPath}`);
+                pytestArgs = [...pytestArgs, ...ignoreArgs];
+                traceInfo(
+                    `[test-by-project] Project ${project.projectName} ignoring nested project(s): ${ignoreArgs.join(
+                        ' ',
+                    )}`,
+                );
+            }
+
             const commandArgs = ['-m', 'pytest', '-p', 'vscode_pytest', '--collect-only'].concat(pytestArgs);
             traceVerbose(
                 `Running pytest discovery with command: ${commandArgs.join(' ')} for workspace ${uri.fsPath}.`,
@@ -84,13 +98,18 @@ export class PytestTestDiscoveryAdapter implements ITestDiscoveryAdapter {
             // Configure subprocess environment
             const mutableEnv = await configureDiscoveryEnv(this.envVarsService, uri, discoveryPipeName);
 
+            // Set PROJECT_ROOT_PATH for project-based testing (tells Python where to root the test tree)
+            if (project) {
+                mutableEnv.PROJECT_ROOT_PATH = project.projectUri.fsPath;
+            }
+
             // Setup process handlers (shared by both execution paths)
             const handlers = createProcessHandlers('pytest', uri, cwd, this.resultResolver, deferredTillExecClose, [5]);
 
             // Execute using environment extension if available
             if (useEnvExtension()) {
                 traceInfo(`Using environment extension for pytest discovery in workspace ${uri.fsPath}`);
-                const pythonEnv = await getEnvironment(uri);
+                const pythonEnv = project?.pythonEnvironment ?? (await getEnvironment(uri));
                 if (!pythonEnv) {
                     traceError(
                         `Python environment not found for workspace ${uri.fsPath}. Cannot proceed with test discovery.`,
diff --git a/src/client/testing/testController/pytest/pytestExecutionAdapter.ts b/src/client/testing/testController/pytest/pytestExecutionAdapter.ts
index 3b2f9f7de33a..102841c2e2dd 100644
--- a/src/client/testing/testController/pytest/pytestExecutionAdapter.ts
+++ b/src/client/testing/testController/pytest/pytestExecutionAdapter.ts
@@ -21,6 +21,7 @@ import * as utils from '../common/utils';
 import { IEnvironmentVariablesProvider } from '../../../common/variables/types';
 import { PythonEnvironment } from '../../../pythonEnvironments/info';
 import { getEnvironment, runInBackground, useEnvExtension } from '../../../envExt/api.internal';
+import { ProjectAdapter } from '../common/projectAdapter';
 
 export class PytestTestExecutionAdapter implements ITestExecutionAdapter {
     constructor(
@@ -37,6 +38,7 @@ export class PytestTestExecutionAdapter implements ITestExecutionAdapter {
         executionFactory: IPythonExecutionFactory,
         debugLauncher?: ITestDebugLauncher,
         interpreter?: PythonEnvironment,
+        project?: ProjectAdapter,
     ): Promise<void> {
         const deferredTillServerClose: Deferred<void> = utils.createTestingDeferred();
 
@@ -71,6 +73,7 @@ export class PytestTestExecutionAdapter implements ITestExecutionAdapter {
                 executionFactory,
                 debugLauncher,
                 interpreter,
+                project,
             );
         } finally {
             await deferredTillServerClose.promise;
@@ -87,6 +90,7 @@ export class PytestTestExecutionAdapter implements ITestExecutionAdapter {
         executionFactory: IPythonExecutionFactory,
         debugLauncher?: ITestDebugLauncher,
         interpreter?: PythonEnvironment,
+        project?: ProjectAdapter,
     ): Promise<ExecutionTestPayload> {
         const relativePathToPytest = 'python_files';
         const fullPluginPath = path.join(EXTENSION_ROOT_DIR, relativePathToPytest);
@@ -102,9 +106,17 @@ export class PytestTestExecutionAdapter implements ITestExecutionAdapter {
         const pythonPathCommand = [fullPluginPath, ...pythonPathParts].join(path.delimiter);
         mutableEnv.PYTHONPATH = pythonPathCommand;
         mutableEnv.TEST_RUN_PIPE = resultNamedPipeName;
+
+        // Set PROJECT_ROOT_PATH for project-based testing (tells Python where to root the test tree)
+        if (project) {
+            mutableEnv.PROJECT_ROOT_PATH = project.projectUri.fsPath;
+            traceInfo(`[test-by-project] Setting PROJECT_ROOT_PATH=${project.projectUri.fsPath} for pytest execution`);
+        }
+
         if (profileKind && profileKind === TestRunProfileKind.Coverage) {
             mutableEnv.COVERAGE_ENABLED = 'True';
         }
+
         const debugBool = profileKind && profileKind === TestRunProfileKind.Debug;
 
         // Create the Python environment in which to execute the command.
@@ -155,6 +167,8 @@ export class PytestTestExecutionAdapter implements ITestExecutionAdapter {
                     testProvider: PYTEST_PROVIDER,
                     runTestIdsPort: testIdsFileName,
                     pytestPort: resultNamedPipeName,
+                    // Pass project for project-based debugging (Python path and session name derived from this)
+                    project: project?.pythonProject,
                 };
                 const sessionOptions: DebugSessionOptions = {
                     testRun: runInstance,
@@ -168,7 +182,9 @@ export class PytestTestExecutionAdapter implements ITestExecutionAdapter {
                     sessionOptions,
                 );
             } else if (useEnvExtension()) {
-                const pythonEnv = await getEnvironment(uri);
+                // For project-based execution, use the project's Python environment
+                // Otherwise, fall back to getting the environment from the URI
+                const pythonEnv = project?.pythonEnvironment ?? (await getEnvironment(uri));
                 if (pythonEnv) {
                     const deferredTillExecClose: Deferred<void> = utils.createTestingDeferred();
 
diff --git a/src/client/testing/testController/unittest/testDiscoveryAdapter.ts b/src/client/testing/testController/unittest/testDiscoveryAdapter.ts
index 7c986e95a449..558e01f3514d 100644
--- a/src/client/testing/testController/unittest/testDiscoveryAdapter.ts
+++ b/src/client/testing/testController/unittest/testDiscoveryAdapter.ts
@@ -18,6 +18,7 @@ import { PythonEnvironment } from '../../../pythonEnvironments/info';
 import { createTestingDeferred } from '../common/utils';
 import { buildDiscoveryCommand, buildUnittestEnv as configureSubprocessEnv } from './unittestHelpers';
 import { cleanupOnCancellation, createProcessHandlers, setupDiscoveryPipe } from '../common/discoveryHelpers';
+import { ProjectAdapter } from '../common/projectAdapter';
 
 /**
  * Configures the subprocess environment for unittest discovery.
@@ -51,6 +52,7 @@ export class UnittestTestDiscoveryAdapter implements ITestDiscoveryAdapter {
         executionFactory: IPythonExecutionFactory,
         token?: CancellationToken,
         interpreter?: PythonEnvironment,
+        project?: ProjectAdapter,
     ): Promise<void> {
         // Setup discovery pipe and cancellation
         const {
@@ -78,13 +80,21 @@ export class UnittestTestDiscoveryAdapter implements ITestDiscoveryAdapter {
             // Configure subprocess environment
             const mutableEnv = await configureDiscoveryEnv(this.envVarsService, uri, discoveryPipeName);
 
+            // Set PROJECT_ROOT_PATH for project-based testing (tells Python where to root the test tree)
+            if (project) {
+                mutableEnv.PROJECT_ROOT_PATH = project.projectUri.fsPath;
+                traceInfo(
+                    `[test-by-project] Setting PROJECT_ROOT_PATH=${project.projectUri.fsPath} for unittest discovery`,
+                );
+            }
+
             // Setup process handlers (shared by both execution paths)
             const handlers = createProcessHandlers('unittest', uri, cwd, this.resultResolver, deferredTillExecClose);
 
             // Execute using environment extension if available
             if (useEnvExtension()) {
                 traceInfo(`Using environment extension for unittest discovery in workspace ${uri.fsPath}`);
-                const pythonEnv = await getEnvironment(uri);
+                const pythonEnv = project?.pythonEnvironment ?? (await getEnvironment(uri));
                 if (!pythonEnv) {
                     traceError(
                         `Python environment not found for workspace ${uri.fsPath}. Cannot proceed with test discovery.`,
diff --git a/src/client/testing/testController/unittest/testExecutionAdapter.ts b/src/client/testing/testController/unittest/testExecutionAdapter.ts
index cbc1d2985f84..c7d21b768c5b 100644
--- a/src/client/testing/testController/unittest/testExecutionAdapter.ts
+++ b/src/client/testing/testController/unittest/testExecutionAdapter.ts
@@ -27,6 +27,8 @@ import { ITestDebugLauncher, LaunchOptions } from '../../common/types';
 import { UNITTEST_PROVIDER } from '../../common/constants';
 import * as utils from '../common/utils';
 import { getEnvironment, runInBackground, useEnvExtension } from '../../../envExt/api.internal';
+import { PythonEnvironment } from '../../../pythonEnvironments/info';
+import { ProjectAdapter } from '../common/projectAdapter';
 
 /**
  * Wrapper Class for unittest test execution. This is where we call `runTestCommand`?
@@ -46,6 +48,8 @@ export class UnittestTestExecutionAdapter implements ITestExecutionAdapter {
         runInstance: TestRun,
         executionFactory: IPythonExecutionFactory,
         debugLauncher?: ITestDebugLauncher,
+        _interpreter?: PythonEnvironment,
+        project?: ProjectAdapter,
     ): Promise<void> {
         // deferredTillServerClose awaits named pipe server close
         const deferredTillServerClose: Deferred<void> = utils.createTestingDeferred();
@@ -80,6 +84,7 @@ export class UnittestTestExecutionAdapter implements ITestExecutionAdapter {
                 profileKind,
                 executionFactory,
                 debugLauncher,
+                project,
             );
         } catch (error) {
             traceError(`Error in running unittest tests: ${error}`);
@@ -97,6 +102,7 @@ export class UnittestTestExecutionAdapter implements ITestExecutionAdapter {
         profileKind: boolean | TestRunProfileKind | undefined,
         executionFactory: IPythonExecutionFactory,
         debugLauncher?: ITestDebugLauncher,
+        project?: ProjectAdapter,
     ): Promise<ExecutionTestPayload> {
         const settings = this.configSettings.getSettings(uri);
         const { unittestArgs } = settings.testing;
@@ -111,6 +117,15 @@ export class UnittestTestExecutionAdapter implements ITestExecutionAdapter {
         const pythonPathCommand = [cwd, ...pythonPathParts].join(path.delimiter);
         mutableEnv.PYTHONPATH = pythonPathCommand;
         mutableEnv.TEST_RUN_PIPE = resultNamedPipeName;
+
+        // Set PROJECT_ROOT_PATH for project-based testing (tells Python where to root the test tree)
+        if (project) {
+            mutableEnv.PROJECT_ROOT_PATH = project.projectUri.fsPath;
+            traceInfo(
+                `[test-by-project] Setting PROJECT_ROOT_PATH=${project.projectUri.fsPath} for unittest execution`,
+            );
+        }
+
         if (profileKind && profileKind === TestRunProfileKind.Coverage) {
             mutableEnv.COVERAGE_ENABLED = cwd;
         }
@@ -165,6 +180,8 @@ export class UnittestTestExecutionAdapter implements ITestExecutionAdapter {
                     testProvider: UNITTEST_PROVIDER,
                     runTestIdsPort: testIdsFileName,
                     pytestPort: resultNamedPipeName, // change this from pytest
+                    // Pass project for project-based debugging (Python path and session name derived from this)
+                    project: project?.pythonProject,
                 };
                 const sessionOptions: DebugSessionOptions = {
                     testRun: runInstance,
@@ -183,7 +200,7 @@ export class UnittestTestExecutionAdapter implements ITestExecutionAdapter {
                     sessionOptions,
                 );
             } else if (useEnvExtension()) {
-                const pythonEnv = await getEnvironment(uri);
+                const pythonEnv = project?.pythonEnvironment ?? (await getEnvironment(uri));
                 if (pythonEnv) {
                     traceInfo(`Running unittest with arguments: ${args.join(' ')} for workspace ${uri.fsPath} \r\n`);
                     const deferredTillExecClose = createDeferred();
diff --git a/src/client/testing/testController/workspaceTestAdapter.ts b/src/client/testing/testController/workspaceTestAdapter.ts
index 75b9489f708e..f17687732f57 100644
--- a/src/client/testing/testController/workspaceTestAdapter.ts
+++ b/src/client/testing/testController/workspaceTestAdapter.ts
@@ -15,6 +15,7 @@ import { IPythonExecutionFactory } from '../../common/process/types';
 import { ITestDebugLauncher } from '../common/types';
 import { buildErrorNodeOptions } from './common/utils';
 import { PythonEnvironment } from '../../pythonEnvironments/info';
+import { ProjectAdapter } from './common/projectAdapter';
 
 /**
  * This class exposes a test-provider-agnostic way of discovering tests.
@@ -47,6 +48,7 @@ export class WorkspaceTestAdapter {
         profileKind?: boolean | TestRunProfileKind,
         debugLauncher?: ITestDebugLauncher,
         interpreter?: PythonEnvironment,
+        project?: ProjectAdapter,
     ): Promise<void> {
         if (this.executing) {
             traceError('Test execution already in progress, not starting a new one.');
@@ -84,6 +86,7 @@ export class WorkspaceTestAdapter {
                 executionFactory,
                 debugLauncher,
                 interpreter,
+                project,
             );
             deferred.resolve();
         } catch (ex) {
diff --git a/src/test/testing/common/debugLauncher.unit.test.ts b/src/test/testing/common/debugLauncher.unit.test.ts
index 397ae03eafc2..86e862103bf6 100644
--- a/src/test/testing/common/debugLauncher.unit.test.ts
+++ b/src/test/testing/common/debugLauncher.unit.test.ts
@@ -30,6 +30,7 @@ import { TestProvider } from '../../../client/testing/types';
 import { isOs, OSType } from '../../common';
 import { IEnvironmentActivationService } from '../../../client/interpreter/activation/types';
 import { createDeferred } from '../../../client/common/utils/async';
+import * as envExtApi from '../../../client/envExt/api.internal';
 
 use(chaiAsPromised.default);
 
@@ -106,7 +107,7 @@ suite('Unit Tests - Debug Launcher', () => {
         );
     }
     function setupDebugManager(
-        workspaceFolder: WorkspaceFolder,
+        _workspaceFolder: WorkspaceFolder,
         expected: DebugConfiguration,
         testProvider: TestProvider,
     ) {
@@ -123,35 +124,48 @@ suite('Unit Tests - Debug Launcher', () => {
             .returns(() => Promise.resolve(expected.env));
 
         const deferred = createDeferred<void>();
+        let capturedConfig: DebugConfiguration | undefined;
 
+        // Use TypeMoq.It.isAny() because the implementation adds a session marker to the config
         debugService
-            .setup((d) =>
-                d.startDebugging(TypeMoq.It.isValue(workspaceFolder), TypeMoq.It.isValue(expected), undefined),
-            )
-            .returns((_wspc: WorkspaceFolder, _expectedParam: DebugConfiguration) => {
+            .setup((d) => d.startDebugging(TypeMoq.It.isAny(), TypeMoq.It.isAny(), TypeMoq.It.isAny()))
+            .callback((_wspc: WorkspaceFolder, config: DebugConfiguration) => {
+                capturedConfig = config;
                 deferred.resolve();
-                return Promise.resolve(undefined as any);
-            });
-
-        // create a fake debug session that the debug service will return on terminate
-        const fakeDebugSession = TypeMoq.Mock.ofType<DebugSession>();
-        fakeDebugSession.setup((ds) => ds.id).returns(() => 'id-val');
-        const debugSessionInstance = fakeDebugSession.object;
+            })
+            .returns(() => Promise.resolve(true));
 
+        // Setup onDidStartDebugSession - the new implementation uses this to capture the session
         debugService
-            .setup((d) => d.activeDebugSession)
-            .returns(() => debugSessionInstance)
-            .verifiable(TypeMoq.Times.once());
+            .setup((d) => d.onDidStartDebugSession(TypeMoq.It.isAny()))
+            .returns((callback) => {
+                deferred.promise.then(() => {
+                    if (capturedConfig) {
+                        callback(({
+                            id: 'test-session-id',
+                            configuration: capturedConfig,
+                        } as unknown) as DebugSession);
+                    }
+                });
+                return { dispose: () => {} };
+            });
 
+        // Setup onDidTerminateDebugSession - fires after the session starts
         debugService
             .setup((d) => d.onDidTerminateDebugSession(TypeMoq.It.isAny()))
             .returns((callback) => {
                 deferred.promise.then(() => {
-                    callback(debugSessionInstance);
+                    setTimeout(() => {
+                        if (capturedConfig) {
+                            callback(({
+                                id: 'test-session-id',
+                                configuration: capturedConfig,
+                            } as unknown) as DebugSession);
+                        }
+                    }, 10);
                 });
-                return undefined as any;
-            })
-            .verifiable(TypeMoq.Times.once());
+                return { dispose: () => {} };
+            });
     }
     function createWorkspaceFolder(folderPath: string): WorkspaceFolder {
         return {
@@ -692,4 +706,228 @@ suite('Unit Tests - Debug Launcher', () => {
 
         expect(configs).to.be.deep.equal([]);
     });
+
+    // ===== PROJECT-BASED DEBUG SESSION TESTS =====
+
+    suite('Project-based debug sessions', () => {
+        function setupForProjectTests(options: LaunchOptions) {
+            interpreterService
+                .setup((i) => i.getActiveInterpreter(TypeMoq.It.isAny()))
+                .returns(() => Promise.resolve(({ path: 'python' } as unknown) as PythonEnvironment));
+            settings.setup((p) => p.envFile).returns(() => __filename);
+
+            debugEnvHelper
+                .setup((x) => x.getEnvironmentVariables(TypeMoq.It.isAny(), TypeMoq.It.isAny()))
+                .returns(() => Promise.resolve({}));
+
+            const workspaceFolders = [{ index: 0, name: 'test', uri: Uri.file(options.cwd) }];
+            getWorkspaceFoldersStub.returns(workspaceFolders);
+            getWorkspaceFolderStub.returns(workspaceFolders[0]);
+            pathExistsStub.resolves(false);
+
+            // Stub useEnvExtension to avoid null reference errors in tests
+            sinon.stub(envExtApi, 'useEnvExtension').returns(false);
+        }
+
+        /**
+         * Helper to setup debug service mocks with proper session lifecycle simulation.
+         * The implementation uses onDidStartDebugSession to capture the session via marker,
+         * then onDidTerminateDebugSession to resolve when that session ends.
+         */
+        function setupDebugServiceWithSessionLifecycle(): {
+            capturedConfigs: DebugConfiguration[];
+        } {
+            const capturedConfigs: DebugConfiguration[] = [];
+            let startCallback: ((session: DebugSession) => void) | undefined;
+            let terminateCallback: ((session: DebugSession) => void) | undefined;
+
+            debugService
+                .setup((d) => d.startDebugging(TypeMoq.It.isAny(), TypeMoq.It.isAny(), TypeMoq.It.isAny()))
+                .callback((_, config) => {
+                    capturedConfigs.push(config);
+                    // Simulate the full session lifecycle after startDebugging resolves
+                    setTimeout(() => {
+                        const session = ({
+                            id: `session-${capturedConfigs.length}`,
+                            configuration: config,
+                        } as unknown) as DebugSession;
+                        // Fire start first (so ourSession is captured)
+                        startCallback?.(session);
+                        // Then fire terminate (so the promise resolves)
+                        setTimeout(() => terminateCallback?.(session), 5);
+                    }, 5);
+                })
+                .returns(() => Promise.resolve(true));
+
+            debugService
+                .setup((d) => d.onDidStartDebugSession(TypeMoq.It.isAny()))
+                .callback((cb) => {
+                    startCallback = cb;
+                })
+                .returns(() => ({ dispose: () => {} }));
+
+            debugService
+                .setup((d) => d.onDidTerminateDebugSession(TypeMoq.It.isAny()))
+                .callback((cb) => {
+                    terminateCallback = cb;
+                })
+                .returns(() => ({ dispose: () => {} }));
+
+            return { capturedConfigs };
+        }
+
+        test('should use project name in config name when provided', async () => {
+            const options: LaunchOptions = {
+                cwd: 'one/two/three',
+                args: ['/one/two/three/testfile.py'],
+                testProvider: 'pytest',
+                runTestIdsPort: 'runTestIdsPort',
+                pytestPort: 'pytestPort',
+                project: { name: 'myproject (Python 3.11)', uri: Uri.file('one/two/three') },
+            };
+
+            setupForProjectTests(options);
+            const { capturedConfigs } = setupDebugServiceWithSessionLifecycle();
+
+            await debugLauncher.launchDebugger(options);
+
+            expect(capturedConfigs).to.have.length(1);
+            expect(capturedConfigs[0].name).to.equal('Debug Tests: myproject (Python 3.11)');
+        });
+
+        test('should use default python when no project provided', async () => {
+            const options: LaunchOptions = {
+                cwd: 'one/two/three',
+                args: ['/one/two/three/testfile.py'],
+                testProvider: 'pytest',
+                runTestIdsPort: 'runTestIdsPort',
+                pytestPort: 'pytestPort',
+            };
+
+            setupForProjectTests(options);
+            const { capturedConfigs } = setupDebugServiceWithSessionLifecycle();
+
+            await debugLauncher.launchDebugger(options);
+
+            expect(capturedConfigs).to.have.length(1);
+            // Should use the default 'python' from interpreterService mock
+            expect(capturedConfigs[0].python).to.equal('python');
+        });
+
+        test('should add unique session marker to launch config', async () => {
+            const options: LaunchOptions = {
+                cwd: 'one/two/three',
+                args: ['/one/two/three/testfile.py'],
+                testProvider: 'pytest',
+                runTestIdsPort: 'runTestIdsPort',
+                pytestPort: 'pytestPort',
+            };
+
+            setupForProjectTests(options);
+            const { capturedConfigs } = setupDebugServiceWithSessionLifecycle();
+
+            await debugLauncher.launchDebugger(options);
+
+            expect(capturedConfigs).to.have.length(1);
+            // Should have a session marker of format 'test-{timestamp}-{random}'
+            const marker = (capturedConfigs[0] as any).__vscodeTestSessionMarker;
+            expect(marker).to.be.a('string');
+            expect(marker).to.match(/^test-\d+-[a-z0-9]+$/);
+        });
+
+        test('should generate unique markers for each launch', async () => {
+            const options: LaunchOptions = {
+                cwd: 'one/two/three',
+                args: ['/one/two/three/testfile.py'],
+                testProvider: 'pytest',
+                runTestIdsPort: 'runTestIdsPort',
+                pytestPort: 'pytestPort',
+            };
+
+            setupForProjectTests(options);
+            const { capturedConfigs } = setupDebugServiceWithSessionLifecycle();
+
+            // Launch twice
+            await debugLauncher.launchDebugger(options);
+            await debugLauncher.launchDebugger(options);
+
+            expect(capturedConfigs).to.have.length(2);
+            const marker1 = (capturedConfigs[0] as any).__vscodeTestSessionMarker;
+            const marker2 = (capturedConfigs[1] as any).__vscodeTestSessionMarker;
+            expect(marker1).to.not.equal(marker2);
+        });
+
+        test('should only resolve when matching session terminates', async () => {
+            const options: LaunchOptions = {
+                cwd: 'one/two/three',
+                args: ['/one/two/three/testfile.py'],
+                testProvider: 'pytest',
+                runTestIdsPort: 'runTestIdsPort',
+                pytestPort: 'pytestPort',
+            };
+
+            setupForProjectTests(options);
+
+            let capturedConfig: DebugConfiguration | undefined;
+            let terminateCallback: ((session: DebugSession) => void) | undefined;
+            let startCallback: ((session: DebugSession) => void) | undefined;
+
+            debugService
+                .setup((d) => d.startDebugging(TypeMoq.It.isAny(), TypeMoq.It.isAny(), TypeMoq.It.isAny()))
+                .callback((_, config) => {
+                    capturedConfig = config;
+                })
+                .returns(() => Promise.resolve(true));
+
+            debugService
+                .setup((d) => d.onDidStartDebugSession(TypeMoq.It.isAny()))
+                .callback((cb) => {
+                    startCallback = cb;
+                })
+                .returns(() => ({ dispose: () => {} }));
+
+            debugService
+                .setup((d) => d.onDidTerminateDebugSession(TypeMoq.It.isAny()))
+                .callback((cb) => {
+                    terminateCallback = cb;
+                })
+                .returns(() => ({ dispose: () => {} }));
+
+            const launchPromise = debugLauncher.launchDebugger(options);
+
+            // Wait for config to be captured
+            await new Promise((r) => setTimeout(r, 10));
+
+            // Simulate our session starting
+            const ourSession = ({
+                id: 'our-session-id',
+                configuration: capturedConfig!,
+            } as unknown) as DebugSession;
+            startCallback?.(ourSession);
+
+            // Create a different session (like another project's debug)
+            const otherSession = ({
+                id: 'other-session-id',
+                configuration: { __vscodeTestSessionMarker: 'different-marker' },
+            } as unknown) as DebugSession;
+
+            // Terminate the OTHER session first - should NOT resolve our promise
+            terminateCallback?.(otherSession);
+
+            // Wait a bit to ensure it didn't resolve
+            let resolved = false;
+            const checkPromise = launchPromise.then(() => {
+                resolved = true;
+            });
+
+            await new Promise((r) => setTimeout(r, 20));
+            expect(resolved).to.be.false;
+
+            // Now terminate OUR session - should resolve
+            terminateCallback?.(ourSession);
+
+            await checkPromise;
+            expect(resolved).to.be.true;
+        });
+    });
 });
diff --git a/src/test/testing/testController/common/buildErrorNodeOptions.unit.test.ts b/src/test/testing/testController/common/buildErrorNodeOptions.unit.test.ts
index e2133f5c767b..643ea17903e6 100644
--- a/src/test/testing/testController/common/buildErrorNodeOptions.unit.test.ts
+++ b/src/test/testing/testController/common/buildErrorNodeOptions.unit.test.ts
@@ -82,4 +82,30 @@ suite('buildErrorNodeOptions - missing module detection', () => {
         expect(result.label).to.equal('Unittest Discovery Error [workspace]');
         expect(result.error).to.equal('Some other error occurred');
     });
+
+    test('Should use project name in label when projectName is provided', () => {
+        const errorMessage = 'Some error occurred';
+
+        const result = buildErrorNodeOptions(workspaceUri, errorMessage, 'unittest', 'my-project');
+
+        expect(result.label).to.equal('Unittest Discovery Error [my-project]');
+        expect(result.error).to.equal('Some error occurred');
+    });
+
+    test('Should use project name in label for pytest when projectName is provided', () => {
+        const errorMessage = 'Some error occurred';
+
+        const result = buildErrorNodeOptions(workspaceUri, errorMessage, 'pytest', 'ada');
+
+        expect(result.label).to.equal('pytest Discovery Error [ada]');
+        expect(result.error).to.equal('Some error occurred');
+    });
+
+    test('Should use folder name when projectName is undefined', () => {
+        const errorMessage = 'Some error occurred';
+
+        const result = buildErrorNodeOptions(workspaceUri, errorMessage, 'unittest', undefined);
+
+        expect(result.label).to.equal('Unittest Discovery Error [workspace]');
+    });
 });
diff --git a/src/test/testing/testController/common/projectTestExecution.unit.test.ts b/src/test/testing/testController/common/projectTestExecution.unit.test.ts
new file mode 100644
index 000000000000..1cce2d1a8ce0
--- /dev/null
+++ b/src/test/testing/testController/common/projectTestExecution.unit.test.ts
@@ -0,0 +1,740 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+import { expect } from 'chai';
+import * as sinon from 'sinon';
+import * as typemoq from 'typemoq';
+import {
+    CancellationToken,
+    CancellationTokenSource,
+    TestRun,
+    TestRunProfile,
+    TestRunProfileKind,
+    TestRunRequest,
+    Uri,
+} from 'vscode';
+import {
+    createMockDependencies,
+    createMockProjectAdapter,
+    createMockTestItem,
+    createMockTestItemWithoutUri,
+    createMockTestRun,
+} from '../testMocks';
+import {
+    executeTestsForProject,
+    executeTestsForProjects,
+    findProjectForTestItem,
+    getTestCaseNodesRecursive,
+    groupTestItemsByProject,
+    setupCoverageForProjects,
+} from '../../../../client/testing/testController/common/projectTestExecution';
+import * as telemetry from '../../../../client/telemetry';
+import * as envExtApi from '../../../../client/envExt/api.internal';
+
+suite('Project Test Execution', () => {
+    let sandbox: sinon.SinonSandbox;
+    let useEnvExtensionStub: sinon.SinonStub;
+
+    setup(() => {
+        sandbox = sinon.createSandbox();
+        // Default to disabled env extension for path-based fallback tests
+        useEnvExtensionStub = sandbox.stub(envExtApi, 'useEnvExtension').returns(false);
+    });
+
+    teardown(() => {
+        sandbox.restore();
+    });
+
+    // ===== findProjectForTestItem Tests =====
+
+    suite('findProjectForTestItem', () => {
+        test('should return undefined when test item has no URI', async () => {
+            // Mock
+            const item = createMockTestItemWithoutUri('test1');
+            const projects = [createMockProjectAdapter({ projectPath: '/workspace/proj', projectName: 'proj' })];
+
+            // Run
+            const result = await findProjectForTestItem(item, projects);
+
+            // Assert
+            expect(result).to.be.undefined;
+        });
+
+        test('should return matching project when item path is within project directory', async () => {
+            // Mock
+            const item = createMockTestItem('test1', '/workspace/proj/tests/test_file.py');
+            const project = createMockProjectAdapter({ projectPath: '/workspace/proj', projectName: 'proj' });
+
+            // Run
+            const result = await findProjectForTestItem(item, [project]);
+
+            // Assert
+            expect(result).to.equal(project);
+        });
+
+        test('should return undefined when item path is outside all project directories', async () => {
+            // Mock
+            const item = createMockTestItem('test1', '/other/path/test.py');
+            const project = createMockProjectAdapter({ projectPath: '/workspace/proj', projectName: 'proj' });
+
+            // Run
+            const result = await findProjectForTestItem(item, [project]);
+
+            // Assert
+            expect(result).to.be.undefined;
+        });
+
+        test('should return most specific (deepest) project when nested projects exist', async () => {
+            // Mock - parent and child project with overlapping paths
+            const item = createMockTestItem('test1', '/workspace/parent/child/tests/test.py');
+            const parentProject = createMockProjectAdapter({ projectPath: '/workspace/parent', projectName: 'parent' });
+            const childProject = createMockProjectAdapter({
+                projectPath: '/workspace/parent/child',
+                projectName: 'child',
+            });
+
+            // Run
+            const result = await findProjectForTestItem(item, [parentProject, childProject]);
+
+            // Assert - should match child (longer path) not parent
+            expect(result).to.equal(childProject);
+        });
+
+        test('should return most specific project regardless of input order', async () => {
+            // Mock - same as above but different order
+            const item = createMockTestItem('test1', '/workspace/parent/child/tests/test.py');
+            const parentProject = createMockProjectAdapter({ projectPath: '/workspace/parent', projectName: 'parent' });
+            const childProject = createMockProjectAdapter({
+                projectPath: '/workspace/parent/child',
+                projectName: 'child',
+            });
+
+            // Run - pass child first, then parent
+            const result = await findProjectForTestItem(item, [childProject, parentProject]);
+
+            // Assert - order shouldn't affect result
+            expect(result).to.equal(childProject);
+        });
+
+        test('should match item at project root level', async () => {
+            // Mock
+            const item = createMockTestItem('test1', '/workspace/proj/test.py');
+            const project = createMockProjectAdapter({ projectPath: '/workspace/proj', projectName: 'proj' });
+
+            // Run
+            const result = await findProjectForTestItem(item, [project]);
+
+            // Assert
+            expect(result).to.equal(project);
+        });
+
+        test('should use env extension API when available', async () => {
+            // Enable env extension
+            useEnvExtensionStub.returns(true);
+
+            // Mock the env extension API
+            const item = createMockTestItem('test1', '/workspace/proj/tests/test_file.py');
+            const project = createMockProjectAdapter({ projectPath: '/workspace/proj', projectName: 'proj' });
+
+            const mockEnvApi = {
+                getPythonProject: sandbox.stub().returns({ uri: project.projectUri }),
+            };
+            sandbox.stub(envExtApi, 'getEnvExtApi').resolves(mockEnvApi as any);
+
+            // Run
+            const result = await findProjectForTestItem(item, [project]);
+
+            // Assert
+            expect(result).to.equal(project);
+            expect(mockEnvApi.getPythonProject.calledOnceWith(item.uri)).to.be.true;
+        });
+
+        test('should fall back to path matching when env extension API is unavailable', async () => {
+            // Env extension enabled but throws
+            useEnvExtensionStub.returns(true);
+            sandbox.stub(envExtApi, 'getEnvExtApi').rejects(new Error('API unavailable'));
+
+            // Mock
+            const item = createMockTestItem('test1', '/workspace/proj/tests/test_file.py');
+            const project = createMockProjectAdapter({ projectPath: '/workspace/proj', projectName: 'proj' });
+
+            // Run
+            const result = await findProjectForTestItem(item, [project]);
+
+            // Assert - should still work via fallback
+            expect(result).to.equal(project);
+        });
+    });
+
+    // ===== groupTestItemsByProject Tests =====
+
+    suite('groupTestItemsByProject', () => {
+        test('should group single test item to its matching project', async () => {
+            // Mock
+            const item = createMockTestItem('test1', '/workspace/proj/test.py');
+            const project = createMockProjectAdapter({ projectPath: '/workspace/proj', projectName: 'proj' });
+
+            // Run
+            const result = await groupTestItemsByProject([item], [project]);
+
+            // Assert
+            expect(result.size).to.equal(1);
+            const entry = Array.from(result.values())[0];
+            expect(entry.project).to.equal(project);
+            expect(entry.items).to.deep.equal([item]);
+        });
+
+        test('should aggregate multiple items belonging to same project', async () => {
+            // Mock
+            const item1 = createMockTestItem('test1', '/workspace/proj/tests/test1.py');
+            const item2 = createMockTestItem('test2', '/workspace/proj/tests/test2.py');
+            const item3 = createMockTestItem('test3', '/workspace/proj/test3.py');
+            const project = createMockProjectAdapter({ projectPath: '/workspace/proj', projectName: 'proj' });
+
+            // Run
+            const result = await groupTestItemsByProject([item1, item2, item3], [project]);
+
+            // Assert - use Set for order-agnostic comparison
+            expect(result.size).to.equal(1);
+            const entry = Array.from(result.values())[0];
+            expect(entry.items).to.have.length(3);
+            expect(new Set(entry.items)).to.deep.equal(new Set([item1, item2, item3]));
+        });
+
+        test('should separate items into groups by their owning project', async () => {
+            // Mock
+            const item1 = createMockTestItem('test1', '/workspace/proj1/test.py');
+            const item2 = createMockTestItem('test2', '/workspace/proj2/test.py');
+            const item3 = createMockTestItem('test3', '/workspace/proj1/other_test.py');
+            const proj1 = createMockProjectAdapter({ projectPath: '/workspace/proj1', projectName: 'proj1' });
+            const proj2 = createMockProjectAdapter({ projectPath: '/workspace/proj2', projectName: 'proj2' });
+
+            // Run
+            const result = await groupTestItemsByProject([item1, item2, item3], [proj1, proj2]);
+
+            // Assert - use Set for order-agnostic comparison
+            expect(result.size).to.equal(2);
+            const proj1Entry = result.get(proj1.projectUri.toString());
+            const proj2Entry = result.get(proj2.projectUri.toString());
+            expect(proj1Entry?.items).to.have.length(2);
+            expect(new Set(proj1Entry?.items)).to.deep.equal(new Set([item1, item3]));
+            expect(proj2Entry?.items).to.deep.equal([item2]);
+        });
+
+        test('should return empty map when no test items provided', async () => {
+            // Mock
+            const project = createMockProjectAdapter({ projectPath: '/workspace/proj', projectName: 'proj' });
+
+            // Run
+            const result = await groupTestItemsByProject([], [project]);
+
+            // Assert
+            expect(result.size).to.equal(0);
+        });
+
+        test('should exclude items that do not match any project path', async () => {
+            // Mock
+            const item = createMockTestItem('test1', '/other/path/test.py');
+            const project = createMockProjectAdapter({ projectPath: '/workspace/proj', projectName: 'proj' });
+
+            // Run
+            const result = await groupTestItemsByProject([item], [project]);
+
+            // Assert
+            expect(result.size).to.equal(0);
+        });
+
+        test('should assign item to most specific (deepest) project for nested paths', async () => {
+            // Mock
+            const item = createMockTestItem('test1', '/workspace/parent/child/test.py');
+            const parentProject = createMockProjectAdapter({ projectPath: '/workspace/parent', projectName: 'parent' });
+            const childProject = createMockProjectAdapter({
+                projectPath: '/workspace/parent/child',
+                projectName: 'child',
+            });
+
+            // Run
+            const result = await groupTestItemsByProject([item], [parentProject, childProject]);
+
+            // Assert
+            expect(result.size).to.equal(1);
+            const entry = result.get(childProject.projectUri.toString());
+            expect(entry?.project).to.equal(childProject);
+            expect(entry?.items).to.deep.equal([item]);
+        });
+
+        test('should omit projects that have no matching test items', async () => {
+            // Mock
+            const item = createMockTestItem('test1', '/workspace/proj1/test.py');
+            const proj1 = createMockProjectAdapter({ projectPath: '/workspace/proj1', projectName: 'proj1' });
+            const proj2 = createMockProjectAdapter({ projectPath: '/workspace/proj2', projectName: 'proj2' });
+
+            // Run
+            const result = await groupTestItemsByProject([item], [proj1, proj2]);
+
+            // Assert
+            expect(result.size).to.equal(1);
+            expect(result.has(proj1.projectUri.toString())).to.be.true;
+            expect(result.has(proj2.projectUri.toString())).to.be.false;
+        });
+    });
+
+    // ===== getTestCaseNodesRecursive Tests =====
+
+    suite('getTestCaseNodesRecursive', () => {
+        test('should return single item when it is a leaf node with no children', () => {
+            // Mock
+            const item = createMockTestItem('test_func', '/test.py');
+
+            // Run
+            const result = getTestCaseNodesRecursive(item);
+
+            // Assert
+            expect(result).to.deep.equal([item]);
+        });
+
+        test('should return all leaf nodes from single-level nested structure', () => {
+            // Mock
+            const leaf1 = createMockTestItem('test_method1', '/test.py');
+            const leaf2 = createMockTestItem('test_method2', '/test.py');
+            const classItem = createMockTestItem('TestClass', '/test.py', [leaf1, leaf2]);
+
+            // Run
+            const result = getTestCaseNodesRecursive(classItem);
+
+            // Assert - use Set for order-agnostic comparison
+            expect(result).to.have.length(2);
+            expect(new Set(result)).to.deep.equal(new Set([leaf1, leaf2]));
+        });
+
+        test('should traverse deeply nested structure to find all leaf nodes', () => {
+            // Mock - 3 levels deep: file → class → inner class → test
+            const leaf1 = createMockTestItem('test1', '/test.py');
+            const leaf2 = createMockTestItem('test2', '/test.py');
+            const innerClass = createMockTestItem('InnerClass', '/test.py', [leaf2]);
+            const outerClass = createMockTestItem('OuterClass', '/test.py', [leaf1, innerClass]);
+            const fileItem = createMockTestItem('test_file.py', '/test.py', [outerClass]);
+
+            // Run
+            const result = getTestCaseNodesRecursive(fileItem);
+
+            // Assert - use Set for order-agnostic comparison
+            expect(result).to.have.length(2);
+            expect(new Set(result)).to.deep.equal(new Set([leaf1, leaf2]));
+        });
+
+        test('should collect leaves from multiple sibling branches', () => {
+            // Mock - multiple test classes at same level
+            const leaf1 = createMockTestItem('test1', '/test.py');
+            const leaf2 = createMockTestItem('test2', '/test.py');
+            const leaf3 = createMockTestItem('test3', '/test.py');
+            const class1 = createMockTestItem('Class1', '/test.py', [leaf1]);
+            const class2 = createMockTestItem('Class2', '/test.py', [leaf2, leaf3]);
+            const fileItem = createMockTestItem('test_file.py', '/test.py', [class1, class2]);
+
+            // Run
+            const result = getTestCaseNodesRecursive(fileItem);
+
+            // Assert - use Set for order-agnostic comparison
+            expect(result).to.have.length(3);
+            expect(new Set(result)).to.deep.equal(new Set([leaf1, leaf2, leaf3]));
+        });
+    });
+
+    // ===== executeTestsForProject Tests =====
+
+    suite('executeTestsForProject', () => {
+        test('should call executionAdapter.runTests with project URI and mapped test IDs', async () => {
+            // Mock
+            const project = createMockProjectAdapter({ projectPath: '/workspace/proj', projectName: 'proj' });
+            project.resultResolver.vsIdToRunId.set('test1', 'test_file.py::test1');
+            const testItem = createMockTestItem('test1', '/workspace/proj/test.py');
+            const runMock = createMockTestRun();
+            const request = { profile: { kind: TestRunProfileKind.Run } } as TestRunRequest;
+            const deps = createMockDependencies();
+
+            // Run
+            await executeTestsForProject(project, [testItem], runMock.object, request, deps);
+
+            // Assert
+            expect(project.executionAdapterStub.calledOnce).to.be.true;
+            const callArgs = project.executionAdapterStub.firstCall.args;
+            expect(callArgs[0].fsPath).to.equal(project.projectUri.fsPath); // uri
+            expect(callArgs[1]).to.deep.equal(['test_file.py::test1']); // testCaseIds
+            expect(callArgs[7]).to.equal(project); // project
+        });
+
+        test('should mark all leaf test items as started in the test run', async () => {
+            // Mock
+            const project = createMockProjectAdapter({ projectPath: '/workspace/proj', projectName: 'proj' });
+            project.resultResolver.vsIdToRunId.set('test1', 'runId1');
+            project.resultResolver.vsIdToRunId.set('test2', 'runId2');
+            const item1 = createMockTestItem('test1', '/workspace/proj/test.py');
+            const item2 = createMockTestItem('test2', '/workspace/proj/test.py');
+            const runMock = createMockTestRun();
+            const request = { profile: { kind: TestRunProfileKind.Run } } as TestRunRequest;
+            const deps = createMockDependencies();
+
+            // Run
+            await executeTestsForProject(project, [item1, item2], runMock.object, request, deps);
+
+            // Assert - both items marked as started
+            runMock.verify((r) => r.started(item1), typemoq.Times.once());
+            runMock.verify((r) => r.started(item2), typemoq.Times.once());
+        });
+
+        test('should resolve test IDs via resultResolver.vsIdToRunId mapping', async () => {
+            // Mock
+            const project = createMockProjectAdapter({ projectPath: '/workspace/proj', projectName: 'proj' });
+            project.resultResolver.vsIdToRunId.set('test1', 'path/to/test1');
+            project.resultResolver.vsIdToRunId.set('test2', 'path/to/test2');
+            const item1 = createMockTestItem('test1', '/workspace/proj/test.py');
+            const item2 = createMockTestItem('test2', '/workspace/proj/test.py');
+            const runMock = createMockTestRun();
+            const request = { profile: { kind: TestRunProfileKind.Run } } as TestRunRequest;
+            const deps = createMockDependencies();
+
+            // Run
+            await executeTestsForProject(project, [item1, item2], runMock.object, request, deps);
+
+            // Assert - use Set for order-agnostic comparison
+            const passedTestIds = project.executionAdapterStub.firstCall.args[1] as string[];
+            expect(new Set(passedTestIds)).to.deep.equal(new Set(['path/to/test1', 'path/to/test2']));
+        });
+
+        test('should skip execution when no items have vsIdToRunId mappings', async () => {
+            // Mock - no mappings set, so lookups return undefined
+            const project = createMockProjectAdapter({ projectPath: '/workspace/proj', projectName: 'proj' });
+            const item = createMockTestItem('unmapped_test', '/workspace/proj/test.py');
+            const runMock = createMockTestRun();
+            const request = { profile: { kind: TestRunProfileKind.Run } } as TestRunRequest;
+            const deps = createMockDependencies();
+
+            // Run
+            await executeTestsForProject(project, [item], runMock.object, request, deps);
+
+            // Assert - execution adapter never called
+            expect(project.executionAdapterStub.called).to.be.false;
+        });
+
+        test('should recursively expand nested test items to find leaf nodes', async () => {
+            // Mock - class containing two test methods
+            const project = createMockProjectAdapter({ projectPath: '/workspace/proj', projectName: 'proj' });
+            const leaf1 = createMockTestItem('test1', '/workspace/proj/test.py');
+            const leaf2 = createMockTestItem('test2', '/workspace/proj/test.py');
+            const classItem = createMockTestItem('TestClass', '/workspace/proj/test.py', [leaf1, leaf2]);
+            project.resultResolver.vsIdToRunId.set('test1', 'runId1');
+            project.resultResolver.vsIdToRunId.set('test2', 'runId2');
+            const runMock = createMockTestRun();
+            const request = { profile: { kind: TestRunProfileKind.Run } } as TestRunRequest;
+            const deps = createMockDependencies();
+
+            // Run
+            await executeTestsForProject(project, [classItem], runMock.object, request, deps);
+
+            // Assert - leaf nodes marked as started, not the parent class
+            runMock.verify((r) => r.started(leaf1), typemoq.Times.once());
+            runMock.verify((r) => r.started(leaf2), typemoq.Times.once());
+            const passedTestIds = project.executionAdapterStub.firstCall.args[1] as string[];
+            expect(passedTestIds).to.have.length(2);
+        });
+    });
+
+    // ===== executeTestsForProjects Tests =====
+
+    suite('executeTestsForProjects', () => {
+        let telemetryStub: sinon.SinonStub;
+
+        setup(() => {
+            telemetryStub = sandbox.stub(telemetry, 'sendTelemetryEvent');
+        });
+
+        test('should return immediately when empty projects array provided', async () => {
+            // Mock
+            const runMock = createMockTestRun();
+            const token = new CancellationTokenSource().token;
+            const request = { profile: { kind: TestRunProfileKind.Run } } as TestRunRequest;
+            const deps = createMockDependencies();
+
+            // Run
+            await executeTestsForProjects([], [], runMock.object, request, token, deps);
+
+            // Assert - no telemetry sent since no projects executed
+            expect(telemetryStub.called).to.be.false;
+        });
+
+        test('should skip execution when cancellation requested before start', async () => {
+            // Mock
+            const project = createMockProjectAdapter({ projectPath: '/workspace/proj', projectName: 'proj' });
+            const item = createMockTestItem('test1', '/workspace/proj/test.py');
+            const runMock = createMockTestRun();
+            const tokenSource = new CancellationTokenSource();
+            tokenSource.cancel(); // Pre-cancel
+            const request = { profile: { kind: TestRunProfileKind.Run } } as TestRunRequest;
+            const deps = createMockDependencies();
+
+            // Run
+            await executeTestsForProjects([project], [item], runMock.object, request, tokenSource.token, deps);
+
+            // Assert - execution adapter never called
+            expect(project.executionAdapterStub.called).to.be.false;
+        });
+
+        test('should execute tests for each project when multiple projects provided', async () => {
+            // Mock
+            const proj1 = createMockProjectAdapter({ projectPath: '/workspace/proj1', projectName: 'proj1' });
+            const proj2 = createMockProjectAdapter({ projectPath: '/workspace/proj2', projectName: 'proj2' });
+            proj1.resultResolver.vsIdToRunId.set('test1', 'runId1');
+            proj2.resultResolver.vsIdToRunId.set('test2', 'runId2');
+            const item1 = createMockTestItem('test1', '/workspace/proj1/test.py');
+            const item2 = createMockTestItem('test2', '/workspace/proj2/test.py');
+            const runMock = createMockTestRun();
+            const token = new CancellationTokenSource().token;
+            const request = { profile: { kind: TestRunProfileKind.Run } } as TestRunRequest;
+            const deps = createMockDependencies();
+
+            // Run
+            await executeTestsForProjects([proj1, proj2], [item1, item2], runMock.object, request, token, deps);
+
+            // Assert - both projects had their execution adapters called
+            expect(proj1.executionAdapterStub.calledOnce).to.be.true;
+            expect(proj2.executionAdapterStub.calledOnce).to.be.true;
+        });
+
+        test('should emit telemetry event for each project execution', async () => {
+            // Mock
+            const proj1 = createMockProjectAdapter({ projectPath: '/workspace/proj1', projectName: 'proj1' });
+            const proj2 = createMockProjectAdapter({ projectPath: '/workspace/proj2', projectName: 'proj2' });
+            proj1.resultResolver.vsIdToRunId.set('test1', 'runId1');
+            proj2.resultResolver.vsIdToRunId.set('test2', 'runId2');
+            const item1 = createMockTestItem('test1', '/workspace/proj1/test.py');
+            const item2 = createMockTestItem('test2', '/workspace/proj2/test.py');
+            const runMock = createMockTestRun();
+            const token = new CancellationTokenSource().token;
+            const request = { profile: { kind: TestRunProfileKind.Run } } as TestRunRequest;
+            const deps = createMockDependencies();
+
+            // Run
+            await executeTestsForProjects([proj1, proj2], [item1, item2], runMock.object, request, token, deps);
+
+            // Assert - telemetry sent twice (once per project)
+            expect(telemetryStub.callCount).to.equal(2);
+        });
+
+        test('should stop processing remaining projects when cancellation requested mid-execution', async () => {
+            // Mock
+            const tokenSource = new CancellationTokenSource();
+            const proj1 = createMockProjectAdapter({ projectPath: '/workspace/proj1', projectName: 'proj1' });
+            const proj2 = createMockProjectAdapter({ projectPath: '/workspace/proj2', projectName: 'proj2' });
+            // First project triggers cancellation during its execution
+            proj1.executionAdapterStub.callsFake(async () => {
+                tokenSource.cancel();
+            });
+            proj1.resultResolver.vsIdToRunId.set('test1', 'runId1');
+            proj2.resultResolver.vsIdToRunId.set('test2', 'runId2');
+            const item1 = createMockTestItem('test1', '/workspace/proj1/test.py');
+            const item2 = createMockTestItem('test2', '/workspace/proj2/test.py');
+            const runMock = createMockTestRun();
+            const request = { profile: { kind: TestRunProfileKind.Run } } as TestRunRequest;
+            const deps = createMockDependencies();
+
+            // Run
+            await executeTestsForProjects(
+                [proj1, proj2],
+                [item1, item2],
+                runMock.object,
+                request,
+                tokenSource.token,
+                deps,
+            );
+
+            // Assert - first project executed, second may be skipped due to cancellation check
+            expect(proj1.executionAdapterStub.calledOnce).to.be.true;
+        });
+
+        test('should continue executing remaining projects when one project fails', async () => {
+            // Mock
+            const proj1 = createMockProjectAdapter({ projectPath: '/workspace/proj1', projectName: 'proj1' });
+            const proj2 = createMockProjectAdapter({ projectPath: '/workspace/proj2', projectName: 'proj2' });
+            proj1.executionAdapterStub.rejects(new Error('Execution failed'));
+            proj1.resultResolver.vsIdToRunId.set('test1', 'runId1');
+            proj2.resultResolver.vsIdToRunId.set('test2', 'runId2');
+            const item1 = createMockTestItem('test1', '/workspace/proj1/test.py');
+            const item2 = createMockTestItem('test2', '/workspace/proj2/test.py');
+            const runMock = createMockTestRun();
+            const token = new CancellationTokenSource().token;
+            const request = { profile: { kind: TestRunProfileKind.Run } } as TestRunRequest;
+            const deps = createMockDependencies();
+
+            // Run - should not throw
+            await executeTestsForProjects([proj1, proj2], [item1, item2], runMock.object, request, token, deps);
+
+            // Assert - second project still executed despite first failing
+            expect(proj2.executionAdapterStub.calledOnce).to.be.true;
+        });
+
+        test('should configure loadDetailedCoverage callback when run profile is Coverage', async () => {
+            // Mock
+            const project = createMockProjectAdapter({ projectPath: '/workspace/proj', projectName: 'proj' });
+            project.resultResolver.vsIdToRunId.set('test1', 'runId1');
+            const item = createMockTestItem('test1', '/workspace/proj/test.py');
+            const runMock = createMockTestRun();
+            const token = new CancellationTokenSource().token;
+            const profileMock = ({
+                kind: TestRunProfileKind.Coverage,
+                loadDetailedCoverage: undefined,
+            } as unknown) as TestRunProfile;
+            const request = { profile: profileMock } as TestRunRequest;
+            const deps = createMockDependencies();
+
+            // Run
+            await executeTestsForProjects([project], [item], runMock.object, request, token, deps);
+
+            // Assert - loadDetailedCoverage callback was configured
+            expect(profileMock.loadDetailedCoverage).to.not.be.undefined;
+        });
+
+        test('should include debugging=true in telemetry when run profile is Debug', async () => {
+            // Mock
+            const project = createMockProjectAdapter({ projectPath: '/workspace/proj', projectName: 'proj' });
+            project.resultResolver.vsIdToRunId.set('test1', 'runId1');
+            const item = createMockTestItem('test1', '/workspace/proj/test.py');
+            const runMock = createMockTestRun();
+            const token = new CancellationTokenSource().token;
+            const request = { profile: { kind: TestRunProfileKind.Debug } } as TestRunRequest;
+            const deps = createMockDependencies();
+
+            // Run
+            await executeTestsForProjects([project], [item], runMock.object, request, token, deps);
+
+            // Assert - telemetry contains debugging=true
+            expect(telemetryStub.calledOnce).to.be.true;
+            const telemetryProps = telemetryStub.firstCall.args[2];
+            expect(telemetryProps.debugging).to.be.true;
+        });
+    });
+
+    // ===== setupCoverageForProjects Tests =====
+
+    suite('setupCoverageForProjects', () => {
+        test('should configure loadDetailedCoverage callback when profile kind is Coverage', () => {
+            // Mock
+            const project = createMockProjectAdapter({ projectPath: '/workspace/proj', projectName: 'proj' });
+            const profileMock = ({
+                kind: TestRunProfileKind.Coverage,
+                loadDetailedCoverage: undefined,
+            } as unknown) as TestRunProfile;
+            const request = { profile: profileMock } as TestRunRequest;
+
+            // Run
+            setupCoverageForProjects(request, [project]);
+
+            // Assert
+            expect(profileMock.loadDetailedCoverage).to.be.a('function');
+        });
+
+        test('should leave loadDetailedCoverage undefined when profile kind is Run', () => {
+            // Mock
+            const project = createMockProjectAdapter({ projectPath: '/workspace/proj', projectName: 'proj' });
+            const profileMock = ({
+                kind: TestRunProfileKind.Run,
+                loadDetailedCoverage: undefined,
+            } as unknown) as TestRunProfile;
+            const request = { profile: profileMock } as TestRunRequest;
+
+            // Run
+            setupCoverageForProjects(request, [project]);
+
+            // Assert
+            expect(profileMock.loadDetailedCoverage).to.be.undefined;
+        });
+
+        test('should return coverage data from detailedCoverageMap when loadDetailedCoverage is called', async () => {
+            // Mock
+            const project = createMockProjectAdapter({ projectPath: '/workspace/proj', projectName: 'proj' });
+            const mockCoverageDetails = [{ line: 1, executed: true }];
+            // Use Uri.fsPath as the key to match the implementation's lookup
+            const fileUri = Uri.file('/workspace/proj/file.py');
+            project.resultResolver.detailedCoverageMap.set(fileUri.fsPath, mockCoverageDetails as any);
+            const profileMock = ({
+                kind: TestRunProfileKind.Coverage,
+                loadDetailedCoverage: undefined,
+            } as unknown) as TestRunProfile;
+            const request = { profile: profileMock } as TestRunRequest;
+
+            // Run - configure coverage
+            setupCoverageForProjects(request, [project]);
+
+            // Run - call the configured callback
+            const fileCoverage = { uri: fileUri };
+            const result = await profileMock.loadDetailedCoverage!(
+                {} as TestRun,
+                fileCoverage as any,
+                {} as CancellationToken,
+            );
+
+            // Assert
+            expect(result).to.deep.equal(mockCoverageDetails);
+        });
+
+        test('should return empty array when file has no coverage data in map', async () => {
+            // Mock
+            const project = createMockProjectAdapter({ projectPath: '/workspace/proj', projectName: 'proj' });
+            const profileMock = ({
+                kind: TestRunProfileKind.Coverage,
+                loadDetailedCoverage: undefined,
+            } as unknown) as TestRunProfile;
+            const request = { profile: profileMock } as TestRunRequest;
+
+            // Run - configure coverage
+            setupCoverageForProjects(request, [project]);
+
+            // Run - call callback for file not in map
+            const fileCoverage = { uri: Uri.file('/workspace/proj/uncovered_file.py') };
+            const result = await profileMock.loadDetailedCoverage!(
+                {} as TestRun,
+                fileCoverage as any,
+                {} as CancellationToken,
+            );
+
+            // Assert
+            expect(result).to.deep.equal([]);
+        });
+
+        test('should route to correct project when multiple projects have coverage data', async () => {
+            // Mock - two projects with different coverage data
+            const project1 = createMockProjectAdapter({ projectPath: '/workspace/proj1', projectName: 'proj1' });
+            const project2 = createMockProjectAdapter({ projectPath: '/workspace/proj2', projectName: 'proj2' });
+            const coverage1 = [{ line: 1, executed: true }];
+            const coverage2 = [{ line: 2, executed: false }];
+            const file1Uri = Uri.file('/workspace/proj1/file1.py');
+            const file2Uri = Uri.file('/workspace/proj2/file2.py');
+            project1.resultResolver.detailedCoverageMap.set(file1Uri.fsPath, coverage1 as any);
+            project2.resultResolver.detailedCoverageMap.set(file2Uri.fsPath, coverage2 as any);
+
+            const profileMock = ({
+                kind: TestRunProfileKind.Coverage,
+                loadDetailedCoverage: undefined,
+            } as unknown) as TestRunProfile;
+            const request = { profile: profileMock } as TestRunRequest;
+
+            // Run - configure coverage with both projects
+            setupCoverageForProjects(request, [project1, project2]);
+
+            // Assert - can get coverage from both projects through single callback
+            const result1 = await profileMock.loadDetailedCoverage!(
+                {} as TestRun,
+                { uri: file1Uri } as any,
+                {} as CancellationToken,
+            );
+            const result2 = await profileMock.loadDetailedCoverage!(
+                {} as TestRun,
+                { uri: file2Uri } as any,
+                {} as CancellationToken,
+            );
+
+            expect(result1).to.deep.equal(coverage1);
+            expect(result2).to.deep.equal(coverage2);
+        });
+    });
+});
diff --git a/src/test/testing/testController/common/projectUtils.unit.test.ts b/src/test/testing/testController/common/projectUtils.unit.test.ts
new file mode 100644
index 000000000000..75f399e89fc0
--- /dev/null
+++ b/src/test/testing/testController/common/projectUtils.unit.test.ts
@@ -0,0 +1,241 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+import { expect } from 'chai';
+import { Uri } from 'vscode';
+import {
+    getProjectId,
+    createProjectDisplayName,
+    parseVsId,
+    PROJECT_ID_SEPARATOR,
+} from '../../../../client/testing/testController/common/projectUtils';
+
+suite('Project Utils Tests', () => {
+    suite('getProjectId', () => {
+        test('should return URI string representation', () => {
+            const uri = Uri.file('/workspace/project');
+
+            const id = getProjectId(uri);
+
+            expect(id).to.equal(uri.toString());
+        });
+
+        test('should be consistent for same URI', () => {
+            const uri = Uri.file('/workspace/project');
+
+            const id1 = getProjectId(uri);
+            const id2 = getProjectId(uri);
+
+            expect(id1).to.equal(id2);
+        });
+
+        test('should be different for different URIs', () => {
+            const uri1 = Uri.file('/workspace/project1');
+            const uri2 = Uri.file('/workspace/project2');
+
+            const id1 = getProjectId(uri1);
+            const id2 = getProjectId(uri2);
+
+            expect(id1).to.not.equal(id2);
+        });
+
+        test('should handle Windows paths', () => {
+            const uri = Uri.file('C:\\workspace\\project');
+
+            const id = getProjectId(uri);
+
+            expect(id).to.be.a('string');
+            expect(id).to.have.length.greaterThan(0);
+        });
+
+        test('should handle nested project paths', () => {
+            const parentUri = Uri.file('/workspace/parent');
+            const childUri = Uri.file('/workspace/parent/child');
+
+            const parentId = getProjectId(parentUri);
+            const childId = getProjectId(childUri);
+
+            expect(parentId).to.not.equal(childId);
+        });
+
+        test('should match Python Environments extension format', () => {
+            const uri = Uri.file('/workspace/project');
+
+            const id = getProjectId(uri);
+
+            // Should match how Python Environments extension keys projects
+            expect(id).to.equal(uri.toString());
+            expect(typeof id).to.equal('string');
+        });
+    });
+
+    suite('createProjectDisplayName', () => {
+        test('should format name with major.minor version', () => {
+            const result = createProjectDisplayName('MyProject', '3.11.2');
+
+            expect(result).to.equal('MyProject (Python 3.11)');
+        });
+
+        test('should handle version with patch and pre-release', () => {
+            const result = createProjectDisplayName('MyProject', '3.12.0rc1');
+
+            expect(result).to.equal('MyProject (Python 3.12)');
+        });
+
+        test('should handle version with only major.minor', () => {
+            const result = createProjectDisplayName('MyProject', '3.10');
+
+            expect(result).to.equal('MyProject (Python 3.10)');
+        });
+
+        test('should handle invalid version format gracefully', () => {
+            const result = createProjectDisplayName('MyProject', 'invalid-version');
+
+            expect(result).to.equal('MyProject (Python invalid-version)');
+        });
+
+        test('should handle empty version string', () => {
+            const result = createProjectDisplayName('MyProject', '');
+
+            expect(result).to.equal('MyProject (Python )');
+        });
+
+        test('should handle version with single digit', () => {
+            const result = createProjectDisplayName('MyProject', '3');
+
+            expect(result).to.equal('MyProject (Python 3)');
+        });
+
+        test('should handle project name with special characters', () => {
+            const result = createProjectDisplayName('My-Project_123', '3.11.5');
+
+            expect(result).to.equal('My-Project_123 (Python 3.11)');
+        });
+
+        test('should handle empty project name', () => {
+            const result = createProjectDisplayName('', '3.11.2');
+
+            expect(result).to.equal(' (Python 3.11)');
+        });
+    });
+
+    suite('parseVsId', () => {
+        test('should parse project-scoped ID correctly', () => {
+            const projectUri = Uri.file('/workspace/project');
+            const projectId = getProjectId(projectUri);
+            const vsId = `${projectId}${PROJECT_ID_SEPARATOR}test_file.py::test_name`;
+
+            const [parsedProjectId, runId] = parseVsId(vsId);
+
+            expect(parsedProjectId).to.equal(projectId);
+            expect(runId).to.equal('test_file.py::test_name');
+        });
+
+        test('should handle legacy ID without project scope', () => {
+            const vsId = 'test_file.py';
+
+            const [projectId, runId] = parseVsId(vsId);
+
+            expect(projectId).to.be.undefined;
+            expect(runId).to.equal('test_file.py');
+        });
+
+        test('should handle runId containing separator', () => {
+            const projectUri = Uri.file('/workspace/project');
+            const projectId = getProjectId(projectUri);
+            const vsId = `${projectId}${PROJECT_ID_SEPARATOR}test_file.py::test_class::test_method`;
+
+            const [parsedProjectId, runId] = parseVsId(vsId);
+
+            expect(parsedProjectId).to.equal(projectId);
+            expect(runId).to.equal('test_file.py::test_class::test_method');
+        });
+
+        test('should handle empty project ID', () => {
+            const vsId = `${PROJECT_ID_SEPARATOR}test_file.py::test_name`;
+
+            const [projectId, runId] = parseVsId(vsId);
+
+            expect(projectId).to.equal('');
+            expect(runId).to.equal('test_file.py::test_name');
+        });
+
+        test('should handle empty runId', () => {
+            const vsId = `project-abc123def456${PROJECT_ID_SEPARATOR}`;
+
+            const [projectId, runId] = parseVsId(vsId);
+
+            expect(projectId).to.equal('project-abc123def456');
+            expect(runId).to.equal('');
+        });
+
+        test('should handle ID with file path', () => {
+            const vsId = `project-abc123def456${PROJECT_ID_SEPARATOR}/workspace/tests/test_file.py`;
+
+            const [projectId, runId] = parseVsId(vsId);
+
+            expect(projectId).to.equal('project-abc123def456');
+            expect(runId).to.equal('/workspace/tests/test_file.py');
+        });
+
+        test('should handle Windows file paths', () => {
+            const projectUri = Uri.file('/workspace/project');
+            const projectId = getProjectId(projectUri);
+            const vsId = `${projectId}${PROJECT_ID_SEPARATOR}C:\\workspace\\tests\\test_file.py`;
+
+            const [parsedProjectId, runId] = parseVsId(vsId);
+
+            expect(parsedProjectId).to.equal(projectId);
+            expect(runId).to.equal('C:\\workspace\\tests\\test_file.py');
+        });
+    });
+
+    suite('Integration Tests', () => {
+        test('should generate unique IDs for different URIs', () => {
+            const uris = [
+                Uri.file('/workspace/a'),
+                Uri.file('/workspace/b'),
+                Uri.file('/workspace/c'),
+                Uri.file('/workspace/d'),
+                Uri.file('/workspace/e'),
+            ];
+
+            const ids = uris.map((uri) => getProjectId(uri));
+            const uniqueIds = new Set(ids);
+
+            expect(uniqueIds.size).to.equal(uris.length, 'All IDs should be unique');
+        });
+
+        test('should handle nested project paths', () => {
+            const parentUri = Uri.file('/workspace/parent');
+            const childUri = Uri.file('/workspace/parent/child');
+
+            const parentId = getProjectId(parentUri);
+            const childId = getProjectId(childUri);
+
+            expect(parentId).to.not.equal(childId);
+        });
+
+        test('should create complete vsId and parse it back', () => {
+            const projectUri = Uri.file('/workspace/myproject');
+            const projectId = getProjectId(projectUri);
+            const runId = 'tests/test_module.py::TestClass::test_method';
+            const vsId = `${projectId}${PROJECT_ID_SEPARATOR}${runId}`;
+
+            const [parsedProjectId, parsedRunId] = parseVsId(vsId);
+
+            expect(parsedProjectId).to.equal(projectId);
+            expect(parsedRunId).to.equal(runId);
+        });
+
+        test('should match Python Environments extension URI format', () => {
+            const uri = Uri.file('/workspace/project');
+
+            const projectId = getProjectId(uri);
+
+            // Should be string representation of URI
+            expect(projectId).to.equal(uri.toString());
+            expect(typeof projectId).to.equal('string');
+        });
+    });
+});
diff --git a/src/test/testing/testController/common/testProjectRegistry.unit.test.ts b/src/test/testing/testController/common/testProjectRegistry.unit.test.ts
new file mode 100644
index 000000000000..5d04930d0e88
--- /dev/null
+++ b/src/test/testing/testController/common/testProjectRegistry.unit.test.ts
@@ -0,0 +1,440 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+import { expect } from 'chai';
+import * as path from 'path';
+import * as sinon from 'sinon';
+import { TestController, Uri } from 'vscode';
+import { IConfigurationService } from '../../../../client/common/types';
+import { IEnvironmentVariablesProvider } from '../../../../client/common/variables/types';
+import { IInterpreterService } from '../../../../client/interpreter/contracts';
+import { TestProjectRegistry } from '../../../../client/testing/testController/common/testProjectRegistry';
+import * as envExtApiInternal from '../../../../client/envExt/api.internal';
+import { PythonProject, PythonEnvironment } from '../../../../client/envExt/types';
+
+suite('TestProjectRegistry', () => {
+    let sandbox: sinon.SinonSandbox;
+    let testController: TestController;
+    let configSettings: IConfigurationService;
+    let interpreterService: IInterpreterService;
+    let envVarsService: IEnvironmentVariablesProvider;
+    let registry: TestProjectRegistry;
+
+    setup(() => {
+        sandbox = sinon.createSandbox();
+
+        // Create mock test controller
+        testController = ({
+            items: {
+                get: sandbox.stub(),
+                add: sandbox.stub(),
+                delete: sandbox.stub(),
+                forEach: sandbox.stub(),
+            },
+            createTestItem: sandbox.stub(),
+            dispose: sandbox.stub(),
+        } as unknown) as TestController;
+
+        // Create mock config settings
+        configSettings = ({
+            getSettings: sandbox.stub().returns({
+                testing: {
+                    pytestEnabled: true,
+                    unittestEnabled: false,
+                },
+            }),
+        } as unknown) as IConfigurationService;
+
+        // Create mock interpreter service
+        interpreterService = ({
+            getActiveInterpreter: sandbox.stub().resolves({
+                displayName: 'Python 3.11',
+                path: '/usr/bin/python3',
+                version: { raw: '3.11.8' },
+                sysPrefix: '/usr',
+            }),
+        } as unknown) as IInterpreterService;
+
+        // Create mock env vars service
+        envVarsService = ({
+            getEnvironmentVariables: sandbox.stub().resolves({}),
+        } as unknown) as IEnvironmentVariablesProvider;
+
+        registry = new TestProjectRegistry(testController, configSettings, interpreterService, envVarsService);
+    });
+
+    teardown(() => {
+        sandbox.restore();
+    });
+
+    suite('hasProjects', () => {
+        test('should return false for uninitialized workspace', () => {
+            const workspaceUri = Uri.file('/workspace');
+
+            const result = registry.hasProjects(workspaceUri);
+
+            expect(result).to.be.false;
+        });
+
+        test('should return true after projects are registered', async () => {
+            const workspaceUri = Uri.file('/workspace');
+
+            // Mock useEnvExtension to return false to use default project path
+            sandbox.stub(envExtApiInternal, 'useEnvExtension').returns(false);
+
+            await registry.discoverAndRegisterProjects(workspaceUri);
+
+            const result = registry.hasProjects(workspaceUri);
+
+            expect(result).to.be.true;
+        });
+    });
+
+    suite('getProjectsArray', () => {
+        test('should return empty array for uninitialized workspace', () => {
+            const workspaceUri = Uri.file('/workspace');
+
+            const result = registry.getProjectsArray(workspaceUri);
+
+            expect(result).to.be.an('array').that.is.empty;
+        });
+
+        test('should return projects after registration', async () => {
+            const workspaceUri = Uri.file('/workspace');
+
+            // Mock useEnvExtension to return false to use default project path
+            sandbox.stub(envExtApiInternal, 'useEnvExtension').returns(false);
+
+            await registry.discoverAndRegisterProjects(workspaceUri);
+
+            const result = registry.getProjectsArray(workspaceUri);
+
+            expect(result).to.be.an('array').with.length(1);
+            expect(result[0].projectUri.fsPath).to.equal(workspaceUri.fsPath);
+        });
+    });
+
+    suite('discoverAndRegisterProjects', () => {
+        test('should create default project when env extension not available', async () => {
+            const workspaceUri = Uri.file('/workspace/myproject');
+
+            sandbox.stub(envExtApiInternal, 'useEnvExtension').returns(false);
+
+            const projects = await registry.discoverAndRegisterProjects(workspaceUri);
+
+            expect(projects).to.have.length(1);
+            expect(projects[0].projectUri.fsPath).to.equal(workspaceUri.fsPath);
+            expect(projects[0].testProvider).to.equal('pytest');
+        });
+
+        test('should use unittest when configured', async () => {
+            const workspaceUri = Uri.file('/workspace/myproject');
+
+            (configSettings.getSettings as sinon.SinonStub).returns({
+                testing: {
+                    pytestEnabled: false,
+                    unittestEnabled: true,
+                },
+            });
+
+            sandbox.stub(envExtApiInternal, 'useEnvExtension').returns(false);
+
+            const projects = await registry.discoverAndRegisterProjects(workspaceUri);
+
+            expect(projects).to.have.length(1);
+            expect(projects[0].testProvider).to.equal('unittest');
+        });
+
+        test('should discover projects from Python Environments API', async () => {
+            const workspaceUri = Uri.file('/workspace');
+            const projectUri = Uri.file('/workspace/project1');
+
+            const mockPythonProject: PythonProject = {
+                name: 'project1',
+                uri: projectUri,
+            };
+
+            const mockPythonEnv: PythonEnvironment = {
+                name: 'env1',
+                displayName: 'Python 3.11',
+                shortDisplayName: 'Python 3.11',
+                displayPath: '/usr/bin/python3',
+                version: '3.11.8',
+                environmentPath: Uri.file('/usr/bin/python3'),
+                sysPrefix: '/usr',
+                execInfo: { run: { executable: '/usr/bin/python3' } },
+                envId: { id: 'env1', managerId: 'manager1' },
+            };
+
+            sandbox.stub(envExtApiInternal, 'useEnvExtension').returns(true);
+            sandbox.stub(envExtApiInternal, 'getEnvExtApi').resolves({
+                getPythonProjects: () => [mockPythonProject],
+                getEnvironment: sandbox.stub().resolves(mockPythonEnv),
+            } as any);
+
+            const projects = await registry.discoverAndRegisterProjects(workspaceUri);
+
+            expect(projects).to.have.length(1);
+            expect(projects[0].projectName).to.include('project1');
+            expect(projects[0].pythonEnvironment).to.deep.equal(mockPythonEnv);
+        });
+
+        test('should filter projects to current workspace', async () => {
+            const workspaceUri = Uri.file('/workspace1');
+            const projectInWorkspace = Uri.file('/workspace1/project1');
+            const projectOutsideWorkspace = Uri.file('/workspace2/project2');
+
+            const mockProjects: PythonProject[] = [
+                { name: 'project1', uri: projectInWorkspace },
+                { name: 'project2', uri: projectOutsideWorkspace },
+            ];
+
+            const mockPythonEnv: PythonEnvironment = {
+                name: 'env1',
+                displayName: 'Python 3.11',
+                shortDisplayName: 'Python 3.11',
+                displayPath: '/usr/bin/python3',
+                version: '3.11.8',
+                environmentPath: Uri.file('/usr/bin/python3'),
+                sysPrefix: '/usr',
+                execInfo: { run: { executable: '/usr/bin/python3' } },
+                envId: { id: 'env1', managerId: 'manager1' },
+            };
+
+            sandbox.stub(envExtApiInternal, 'useEnvExtension').returns(true);
+            sandbox.stub(envExtApiInternal, 'getEnvExtApi').resolves({
+                getPythonProjects: () => mockProjects,
+                getEnvironment: sandbox.stub().resolves(mockPythonEnv),
+            } as any);
+
+            const projects = await registry.discoverAndRegisterProjects(workspaceUri);
+
+            expect(projects).to.have.length(1);
+            expect(projects[0].projectUri.fsPath).to.equal(projectInWorkspace.fsPath);
+        });
+
+        test('should fallback to default project when no projects found', async () => {
+            const workspaceUri = Uri.file('/workspace');
+
+            sandbox.stub(envExtApiInternal, 'useEnvExtension').returns(true);
+            sandbox.stub(envExtApiInternal, 'getEnvExtApi').resolves({
+                getPythonProjects: () => [],
+            } as any);
+
+            const projects = await registry.discoverAndRegisterProjects(workspaceUri);
+
+            expect(projects).to.have.length(1);
+            expect(projects[0].projectUri.fsPath).to.equal(workspaceUri.fsPath);
+        });
+
+        test('should fallback to default project on API error', async () => {
+            const workspaceUri = Uri.file('/workspace');
+
+            sandbox.stub(envExtApiInternal, 'useEnvExtension').returns(true);
+            sandbox.stub(envExtApiInternal, 'getEnvExtApi').rejects(new Error('API error'));
+
+            const projects = await registry.discoverAndRegisterProjects(workspaceUri);
+
+            expect(projects).to.have.length(1);
+            expect(projects[0].projectUri.fsPath).to.equal(workspaceUri.fsPath);
+        });
+    });
+
+    suite('configureNestedProjectIgnores', () => {
+        test('should not set ignores when no nested projects', async () => {
+            const workspaceUri = Uri.file('/workspace');
+            const projectUri = Uri.file('/workspace/project1');
+
+            const mockPythonProject: PythonProject = {
+                name: 'project1',
+                uri: projectUri,
+            };
+
+            const mockPythonEnv: PythonEnvironment = {
+                name: 'env1',
+                displayName: 'Python 3.11',
+                shortDisplayName: 'Python 3.11',
+                displayPath: '/usr/bin/python3',
+                version: '3.11.8',
+                environmentPath: Uri.file('/usr/bin/python3'),
+                sysPrefix: '/usr',
+                execInfo: { run: { executable: '/usr/bin/python3' } },
+                envId: { id: 'env1', managerId: 'manager1' },
+            };
+
+            sandbox.stub(envExtApiInternal, 'useEnvExtension').returns(true);
+            sandbox.stub(envExtApiInternal, 'getEnvExtApi').resolves({
+                getPythonProjects: () => [mockPythonProject],
+                getEnvironment: sandbox.stub().resolves(mockPythonEnv),
+            } as any);
+
+            await registry.discoverAndRegisterProjects(workspaceUri);
+            registry.configureNestedProjectIgnores(workspaceUri);
+
+            const projects = registry.getProjectsArray(workspaceUri);
+            expect(projects[0].nestedProjectPathsToIgnore).to.be.undefined;
+        });
+
+        test('should configure ignore paths for nested projects', async () => {
+            const workspaceUri = Uri.file('/workspace');
+            const parentProjectUri = Uri.file('/workspace/parent');
+            const childProjectUri = Uri.file(path.join('/workspace/parent', 'child'));
+
+            const mockProjects: PythonProject[] = [
+                { name: 'parent', uri: parentProjectUri },
+                { name: 'child', uri: childProjectUri },
+            ];
+
+            const mockPythonEnv: PythonEnvironment = {
+                name: 'env1',
+                displayName: 'Python 3.11',
+                shortDisplayName: 'Python 3.11',
+                displayPath: '/usr/bin/python3',
+                version: '3.11.8',
+                environmentPath: Uri.file('/usr/bin/python3'),
+                sysPrefix: '/usr',
+                execInfo: { run: { executable: '/usr/bin/python3' } },
+                envId: { id: 'env1', managerId: 'manager1' },
+            };
+
+            sandbox.stub(envExtApiInternal, 'useEnvExtension').returns(true);
+            sandbox.stub(envExtApiInternal, 'getEnvExtApi').resolves({
+                getPythonProjects: () => mockProjects,
+                getEnvironment: sandbox.stub().resolves(mockPythonEnv),
+            } as any);
+
+            await registry.discoverAndRegisterProjects(workspaceUri);
+            registry.configureNestedProjectIgnores(workspaceUri);
+
+            const projects = registry.getProjectsArray(workspaceUri);
+            const parentProject = projects.find((p) => p.projectUri.fsPath === parentProjectUri.fsPath);
+
+            expect(parentProject?.nestedProjectPathsToIgnore).to.include(childProjectUri.fsPath);
+        });
+
+        test('should not set child project as ignored for sibling projects', async () => {
+            const workspaceUri = Uri.file('/workspace');
+            const project1Uri = Uri.file('/workspace/project1');
+            const project2Uri = Uri.file('/workspace/project2');
+
+            const mockProjects: PythonProject[] = [
+                { name: 'project1', uri: project1Uri },
+                { name: 'project2', uri: project2Uri },
+            ];
+
+            const mockPythonEnv: PythonEnvironment = {
+                name: 'env1',
+                displayName: 'Python 3.11',
+                shortDisplayName: 'Python 3.11',
+                displayPath: '/usr/bin/python3',
+                version: '3.11.8',
+                environmentPath: Uri.file('/usr/bin/python3'),
+                sysPrefix: '/usr',
+                execInfo: { run: { executable: '/usr/bin/python3' } },
+                envId: { id: 'env1', managerId: 'manager1' },
+            };
+
+            sandbox.stub(envExtApiInternal, 'useEnvExtension').returns(true);
+            sandbox.stub(envExtApiInternal, 'getEnvExtApi').resolves({
+                getPythonProjects: () => mockProjects,
+                getEnvironment: sandbox.stub().resolves(mockPythonEnv),
+            } as any);
+
+            await registry.discoverAndRegisterProjects(workspaceUri);
+            registry.configureNestedProjectIgnores(workspaceUri);
+
+            const projects = registry.getProjectsArray(workspaceUri);
+            projects.forEach((project) => {
+                expect(project.nestedProjectPathsToIgnore).to.be.undefined;
+            });
+        });
+    });
+
+    suite('clearWorkspace', () => {
+        test('should remove all projects for a workspace', async () => {
+            const workspaceUri = Uri.file('/workspace');
+
+            sandbox.stub(envExtApiInternal, 'useEnvExtension').returns(false);
+
+            await registry.discoverAndRegisterProjects(workspaceUri);
+            expect(registry.hasProjects(workspaceUri)).to.be.true;
+
+            registry.clearWorkspace(workspaceUri);
+
+            expect(registry.hasProjects(workspaceUri)).to.be.false;
+            expect(registry.getProjectsArray(workspaceUri)).to.be.empty;
+        });
+
+        test('should not affect other workspaces', async () => {
+            const workspace1Uri = Uri.file('/workspace1');
+            const workspace2Uri = Uri.file('/workspace2');
+
+            sandbox.stub(envExtApiInternal, 'useEnvExtension').returns(false);
+
+            await registry.discoverAndRegisterProjects(workspace1Uri);
+            await registry.discoverAndRegisterProjects(workspace2Uri);
+
+            registry.clearWorkspace(workspace1Uri);
+
+            expect(registry.hasProjects(workspace1Uri)).to.be.false;
+            expect(registry.hasProjects(workspace2Uri)).to.be.true;
+        });
+    });
+
+    suite('getWorkspaceProjects', () => {
+        test('should return undefined for uninitialized workspace', () => {
+            const workspaceUri = Uri.file('/workspace');
+
+            const result = registry.getWorkspaceProjects(workspaceUri);
+
+            expect(result).to.be.undefined;
+        });
+
+        test('should return map after registration', async () => {
+            const workspaceUri = Uri.file('/workspace');
+
+            sandbox.stub(envExtApiInternal, 'useEnvExtension').returns(false);
+
+            await registry.discoverAndRegisterProjects(workspaceUri);
+
+            const result = registry.getWorkspaceProjects(workspaceUri);
+
+            expect(result).to.be.instanceOf(Map);
+            expect(result?.size).to.equal(1);
+        });
+    });
+
+    suite('ProjectAdapter properties', () => {
+        test('should create adapter with correct test infrastructure', async () => {
+            const workspaceUri = Uri.file('/workspace/myproject');
+
+            sandbox.stub(envExtApiInternal, 'useEnvExtension').returns(false);
+
+            const projects = await registry.discoverAndRegisterProjects(workspaceUri);
+            const project = projects[0];
+
+            expect(project.projectName).to.be.a('string');
+            expect(project.projectUri.fsPath).to.equal(workspaceUri.fsPath);
+            expect(project.workspaceUri.fsPath).to.equal(workspaceUri.fsPath);
+            expect(project.testProvider).to.equal('pytest');
+            expect(project.discoveryAdapter).to.exist;
+            expect(project.executionAdapter).to.exist;
+            expect(project.resultResolver).to.exist;
+            expect(project.isDiscovering).to.be.false;
+            expect(project.isExecuting).to.be.false;
+        });
+
+        test('should include python environment details', async () => {
+            const workspaceUri = Uri.file('/workspace/myproject');
+
+            sandbox.stub(envExtApiInternal, 'useEnvExtension').returns(false);
+
+            const projects = await registry.discoverAndRegisterProjects(workspaceUri);
+            const project = projects[0];
+
+            expect(project.pythonEnvironment).to.exist;
+            expect(project.pythonProject).to.exist;
+            expect(project.pythonProject.name).to.equal('myproject');
+        });
+    });
+});
diff --git a/src/test/testing/testController/controller.unit.test.ts b/src/test/testing/testController/controller.unit.test.ts
new file mode 100644
index 000000000000..feb5f36fc797
--- /dev/null
+++ b/src/test/testing/testController/controller.unit.test.ts
@@ -0,0 +1,344 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+import * as assert from 'assert';
+import * as sinon from 'sinon';
+import * as vscode from 'vscode';
+import { TestController, Uri } from 'vscode';
+
+import { PYTEST_PROVIDER, UNITTEST_PROVIDER } from '../../../client/testing/common/constants';
+import * as envExtApiInternal from '../../../client/envExt/api.internal';
+import * as projectUtils from '../../../client/testing/testController/common/projectUtils';
+import { PythonTestController } from '../../../client/testing/testController/controller';
+import { TestProjectRegistry } from '../../../client/testing/testController/common/testProjectRegistry';
+
+function createStubTestController(): TestController {
+    const disposable = { dispose: () => undefined };
+
+    const controller = ({
+        items: {
+            forEach: sinon.stub(),
+            get: sinon.stub(),
+            add: sinon.stub(),
+            replace: sinon.stub(),
+            delete: sinon.stub(),
+            size: 0,
+            [Symbol.iterator]: sinon.stub(),
+        },
+        createRunProfile: sinon.stub().returns(disposable),
+        createTestItem: sinon.stub(),
+        dispose: sinon.stub(),
+        resolveHandler: undefined,
+        refreshHandler: undefined,
+    } as unknown) as TestController;
+
+    return controller;
+}
+
+suite('PythonTestController', () => {
+    let sandbox: sinon.SinonSandbox;
+
+    setup(() => {
+        sandbox = sinon.createSandbox();
+    });
+
+    teardown(() => {
+        sandbox.restore();
+    });
+
+    function createController(options?: { unittestEnabled?: boolean; interpreter?: any }): any {
+        const unittestEnabled = options?.unittestEnabled ?? false;
+        const interpreter =
+            options?.interpreter ??
+            ({
+                displayName: 'Python 3.11',
+                path: '/usr/bin/python3',
+                version: { raw: '3.11.8' },
+                sysPrefix: '/usr',
+            } as any);
+
+        const workspaceService = ({ workspaceFolders: [] } as unknown) as any;
+        const configSettings = ({
+            getSettings: sandbox.stub().returns({
+                testing: {
+                    unittestEnabled,
+                    autoTestDiscoverOnSaveEnabled: false,
+                },
+            }),
+        } as unknown) as any;
+
+        const pytest = ({} as unknown) as any;
+        const unittest = ({} as unknown) as any;
+        const disposables: any[] = [];
+        const interpreterService = ({
+            getActiveInterpreter: sandbox.stub().resolves(interpreter),
+        } as unknown) as any;
+
+        const commandManager = ({
+            registerCommand: sandbox.stub().returns({ dispose: () => undefined }),
+        } as unknown) as any;
+        const pythonExecFactory = ({} as unknown) as any;
+        const debugLauncher = ({} as unknown) as any;
+        const envVarsService = ({} as unknown) as any;
+
+        return new PythonTestController(
+            workspaceService,
+            configSettings,
+            pytest,
+            unittest,
+            disposables,
+            interpreterService,
+            commandManager,
+            pythonExecFactory,
+            debugLauncher,
+            envVarsService,
+        );
+    }
+
+    suite('getTestProvider', () => {
+        test('returns unittest when enabled', () => {
+            const controller = createController({ unittestEnabled: true });
+            const workspaceUri: Uri = vscode.Uri.file('/workspace');
+
+            const provider = (controller as any).getTestProvider(workspaceUri);
+
+            assert.strictEqual(provider, UNITTEST_PROVIDER);
+        });
+
+        test('returns pytest when unittest not enabled', () => {
+            const controller = createController({ unittestEnabled: false });
+            const workspaceUri: Uri = vscode.Uri.file('/workspace');
+
+            const provider = (controller as any).getTestProvider(workspaceUri);
+
+            assert.strictEqual(provider, PYTEST_PROVIDER);
+        });
+    });
+
+    suite('createDefaultProject (via TestProjectRegistry)', () => {
+        test('creates a single default project using active interpreter', async () => {
+            const workspaceUri: Uri = vscode.Uri.file('/workspace/myws');
+            const interpreter = {
+                displayName: 'My Python',
+                path: '/opt/py/bin/python',
+                version: { raw: '3.12.1' },
+                sysPrefix: '/opt/py',
+            };
+
+            const fakeDiscoveryAdapter = { kind: 'discovery' };
+            const fakeExecutionAdapter = { kind: 'execution' };
+            sandbox.stub(projectUtils, 'createTestAdapters').returns({
+                discoveryAdapter: fakeDiscoveryAdapter,
+                executionAdapter: fakeExecutionAdapter,
+            } as any);
+
+            // Stub useEnvExtension to return false so createDefaultProject is called
+            sandbox.stub(envExtApiInternal, 'useEnvExtension').returns(false);
+
+            const interpreterService = {
+                getActiveInterpreter: sandbox.stub().resolves(interpreter),
+            } as any;
+
+            const configSettings = {
+                getSettings: sandbox.stub().returns({
+                    testing: { unittestEnabled: false },
+                }),
+            } as any;
+
+            const testController = createStubTestController();
+            const envVarsService = {} as any;
+
+            const registry = new TestProjectRegistry(
+                testController,
+                configSettings,
+                interpreterService,
+                envVarsService,
+            );
+
+            const projects = await registry.discoverAndRegisterProjects(workspaceUri);
+            const project = projects[0];
+
+            assert.strictEqual(projects.length, 1);
+            assert.strictEqual(project.workspaceUri.toString(), workspaceUri.toString());
+            assert.strictEqual(project.projectUri.toString(), workspaceUri.toString());
+            assert.strictEqual(project.projectName, 'myws');
+
+            assert.strictEqual(project.testProvider, PYTEST_PROVIDER);
+            assert.strictEqual(project.discoveryAdapter, fakeDiscoveryAdapter);
+            assert.strictEqual(project.executionAdapter, fakeExecutionAdapter);
+
+            assert.strictEqual(project.pythonProject.uri.toString(), workspaceUri.toString());
+            assert.strictEqual(project.pythonProject.name, 'myws');
+
+            assert.strictEqual(project.pythonEnvironment.displayName, 'My Python');
+            assert.strictEqual(project.pythonEnvironment.version, '3.12.1');
+            assert.strictEqual(project.pythonEnvironment.execInfo.run.executable, '/opt/py/bin/python');
+        });
+    });
+
+    suite('discoverWorkspaceProjects (via TestProjectRegistry)', () => {
+        test('respects useEnvExtension() == false and falls back to single default project', async () => {
+            const workspaceUri: Uri = vscode.Uri.file('/workspace/a');
+
+            const useEnvExtensionStub = sandbox.stub(envExtApiInternal, 'useEnvExtension').returns(false);
+            const getEnvExtApiStub = sandbox.stub(envExtApiInternal, 'getEnvExtApi');
+
+            const fakeDiscoveryAdapter = { kind: 'discovery' };
+            const fakeExecutionAdapter = { kind: 'execution' };
+            sandbox.stub(projectUtils, 'createTestAdapters').returns({
+                discoveryAdapter: fakeDiscoveryAdapter,
+                executionAdapter: fakeExecutionAdapter,
+            } as any);
+
+            const interpreterService = {
+                getActiveInterpreter: sandbox.stub().resolves({
+                    displayName: 'Python 3.11',
+                    path: '/usr/bin/python3',
+                    version: { raw: '3.11.8' },
+                    sysPrefix: '/usr',
+                }),
+            } as any;
+
+            const configSettings = {
+                getSettings: sandbox.stub().returns({
+                    testing: { unittestEnabled: false },
+                }),
+            } as any;
+
+            const testController = createStubTestController();
+            const envVarsService = {} as any;
+
+            const registry = new TestProjectRegistry(
+                testController,
+                configSettings,
+                interpreterService,
+                envVarsService,
+            );
+
+            const projects = await registry.discoverAndRegisterProjects(workspaceUri);
+
+            assert.strictEqual(useEnvExtensionStub.called, true);
+            assert.strictEqual(getEnvExtApiStub.notCalled, true);
+            assert.strictEqual(projects.length, 1);
+            assert.strictEqual(projects[0].projectUri.toString(), workspaceUri.toString());
+        });
+
+        test('filters Python projects to workspace and creates adapters for each', async () => {
+            const workspaceUri: Uri = vscode.Uri.file('/workspace/root');
+
+            const pythonProjects = [
+                { name: 'p1', uri: vscode.Uri.file('/workspace/root/p1') },
+                { name: 'p2', uri: vscode.Uri.file('/workspace/root/nested/p2') },
+                { name: 'other', uri: vscode.Uri.file('/other/root/p3') },
+            ];
+
+            sandbox.stub(envExtApiInternal, 'useEnvExtension').returns(true);
+            sandbox.stub(envExtApiInternal, 'getEnvExtApi').resolves({
+                getPythonProjects: () => pythonProjects,
+                getEnvironment: sandbox.stub().resolves({
+                    name: 'env',
+                    displayName: 'Python 3.11',
+                    shortDisplayName: 'Python 3.11',
+                    displayPath: '/usr/bin/python3',
+                    version: '3.11.8',
+                    environmentPath: vscode.Uri.file('/usr/bin/python3'),
+                    sysPrefix: '/usr',
+                    execInfo: { run: { executable: '/usr/bin/python3' } },
+                    envId: { id: 'test', managerId: 'test' },
+                }),
+            } as any);
+
+            const fakeDiscoveryAdapter = { kind: 'discovery' };
+            const fakeExecutionAdapter = { kind: 'execution' };
+            sandbox.stub(projectUtils, 'createTestAdapters').returns({
+                discoveryAdapter: fakeDiscoveryAdapter,
+                executionAdapter: fakeExecutionAdapter,
+            } as any);
+
+            const interpreterService = {
+                getActiveInterpreter: sandbox.stub().resolves(null),
+            } as any;
+
+            const configSettings = {
+                getSettings: sandbox.stub().returns({
+                    testing: { unittestEnabled: false },
+                }),
+            } as any;
+
+            const testController = createStubTestController();
+            const envVarsService = {} as any;
+
+            const registry = new TestProjectRegistry(
+                testController,
+                configSettings,
+                interpreterService,
+                envVarsService,
+            );
+
+            const projects = await registry.discoverAndRegisterProjects(workspaceUri);
+
+            // Should only create adapters for the 2 projects in the workspace (not 'other')
+            assert.strictEqual(projects.length, 2);
+            const projectUris = projects.map((p: { projectUri: { fsPath: string } }) => p.projectUri.fsPath);
+            const expectedInWorkspace = [
+                vscode.Uri.file('/workspace/root/p1').fsPath,
+                vscode.Uri.file('/workspace/root/nested/p2').fsPath,
+            ];
+            const expectedOutOfWorkspace = vscode.Uri.file('/other/root/p3').fsPath;
+
+            expectedInWorkspace.forEach((expectedPath) => {
+                assert.ok(projectUris.includes(expectedPath));
+            });
+            assert.ok(!projectUris.includes(expectedOutOfWorkspace));
+        });
+
+        test('falls back to default project when no projects are in the workspace', async () => {
+            const workspaceUri: Uri = vscode.Uri.file('/workspace/root');
+
+            sandbox.stub(envExtApiInternal, 'useEnvExtension').returns(true);
+            sandbox.stub(envExtApiInternal, 'getEnvExtApi').resolves({
+                getPythonProjects: () => [{ name: 'other', uri: vscode.Uri.file('/other/root/p3') }],
+            } as any);
+
+            const fakeDiscoveryAdapter = { kind: 'discovery' };
+            const fakeExecutionAdapter = { kind: 'execution' };
+            sandbox.stub(projectUtils, 'createTestAdapters').returns({
+                discoveryAdapter: fakeDiscoveryAdapter,
+                executionAdapter: fakeExecutionAdapter,
+            } as any);
+
+            const interpreter = {
+                displayName: 'Python 3.11',
+                path: '/usr/bin/python3',
+                version: { raw: '3.11.8' },
+                sysPrefix: '/usr',
+            };
+
+            const interpreterService = {
+                getActiveInterpreter: sandbox.stub().resolves(interpreter),
+            } as any;
+
+            const configSettings = {
+                getSettings: sandbox.stub().returns({
+                    testing: { unittestEnabled: false },
+                }),
+            } as any;
+
+            const testController = createStubTestController();
+            const envVarsService = {} as any;
+
+            const registry = new TestProjectRegistry(
+                testController,
+                configSettings,
+                interpreterService,
+                envVarsService,
+            );
+
+            const projects = await registry.discoverAndRegisterProjects(workspaceUri);
+
+            // Should fall back to default project since no projects are in the workspace
+            assert.strictEqual(projects.length, 1);
+            assert.strictEqual(projects[0].projectUri.toString(), workspaceUri.toString());
+        });
+    });
+});
diff --git a/src/test/testing/testController/pytest/pytestExecutionAdapter.unit.test.ts b/src/test/testing/testController/pytest/pytestExecutionAdapter.unit.test.ts
index e0401edc7b41..40c701b22641 100644
--- a/src/test/testing/testController/pytest/pytestExecutionAdapter.unit.test.ts
+++ b/src/test/testing/testController/pytest/pytestExecutionAdapter.unit.test.ts
@@ -22,6 +22,7 @@ import { EXTENSION_ROOT_DIR } from '../../../../client/constants';
 import { MockChildProcess } from '../../../mocks/mockChildProcess';
 import { traceInfo } from '../../../../client/logging';
 import * as extapi from '../../../../client/envExt/api.internal';
+import { createMockProjectAdapter } from '../testMocks';
 
 suite('pytest test execution adapter', () => {
     let useEnvExtensionStub: sinon.SinonStub;
@@ -325,4 +326,210 @@ suite('pytest test execution adapter', () => {
             typeMoq.Times.once(),
         );
     });
+
+    // ===== PROJECT-BASED EXECUTION TESTS =====
+
+    suite('project-based execution', () => {
+        test('should set PROJECT_ROOT_PATH env var when project provided', async () => {
+            const deferred2 = createDeferred();
+            const deferred3 = createDeferred();
+            execFactory = typeMoq.Mock.ofType<IPythonExecutionFactory>();
+            execFactory
+                .setup((x) => x.createActivatedEnvironment(typeMoq.It.isAny()))
+                .returns(() => {
+                    deferred2.resolve();
+                    return Promise.resolve(execService.object);
+                });
+            utilsWriteTestIdsFileStub.callsFake(() => {
+                deferred3.resolve();
+                return Promise.resolve('testIdPipe-mockName');
+            });
+            const testRun = typeMoq.Mock.ofType<TestRun>();
+            testRun.setup((t) => t.token).returns(() => ({ onCancellationRequested: () => undefined } as any));
+
+            const projectPath = path.join('/', 'workspace', 'myproject');
+            const mockProject = createMockProjectAdapter({
+                projectPath,
+                projectName: 'myproject',
+                pythonPath: '/custom/python/path',
+            });
+
+            const uri = Uri.file(myTestPath);
+            adapter = new PytestTestExecutionAdapter(configService);
+            adapter.runTests(
+                uri,
+                [],
+                TestRunProfileKind.Run,
+                testRun.object,
+                execFactory.object,
+                undefined,
+                undefined,
+                mockProject,
+            );
+
+            await deferred2.promise;
+            await deferred3.promise;
+            await deferred4.promise;
+            mockProc.trigger('close');
+
+            execService.verify(
+                (x) =>
+                    x.execObservable(
+                        typeMoq.It.isAny(),
+                        typeMoq.It.is<SpawnOptions>((options) => {
+                            assert.equal(options.env?.PROJECT_ROOT_PATH, projectPath);
+                            return true;
+                        }),
+                    ),
+                typeMoq.Times.once(),
+            );
+        });
+
+        test('should pass debugSessionName in LaunchOptions for debug mode with project', async () => {
+            const deferred3 = createDeferred();
+            utilsWriteTestIdsFileStub.callsFake(() => Promise.resolve('testIdPipe-mockName'));
+
+            debugLauncher
+                .setup((dl) => dl.launchDebugger(typeMoq.It.isAny(), typeMoq.It.isAny(), typeMoq.It.isAny()))
+                .returns(async (_opts, callback) => {
+                    traceInfo('stubs launch debugger');
+                    if (typeof callback === 'function') {
+                        deferred3.resolve();
+                        callback();
+                    }
+                });
+
+            const testRun = typeMoq.Mock.ofType<TestRun>();
+            testRun
+                .setup((t) => t.token)
+                .returns(
+                    () =>
+                        ({
+                            onCancellationRequested: () => undefined,
+                        } as any),
+                );
+
+            const projectPath = path.join('/', 'workspace', 'myproject');
+            const mockProject = createMockProjectAdapter({
+                projectPath,
+                projectName: 'myproject (Python 3.11)',
+                pythonPath: '/custom/python/path',
+            });
+
+            const uri = Uri.file(myTestPath);
+            adapter = new PytestTestExecutionAdapter(configService);
+            adapter.runTests(
+                uri,
+                [],
+                TestRunProfileKind.Debug,
+                testRun.object,
+                execFactory.object,
+                debugLauncher.object,
+                undefined,
+                mockProject,
+            );
+
+            await deferred3.promise;
+
+            debugLauncher.verify(
+                (x) =>
+                    x.launchDebugger(
+                        typeMoq.It.is<LaunchOptions>((launchOptions) => {
+                            // Project should be passed for project-based debugging
+                            assert.ok(launchOptions.project, 'project should be defined');
+                            assert.equal(launchOptions.project?.name, 'myproject (Python 3.11)');
+                            assert.equal(launchOptions.project?.uri.fsPath, projectPath);
+                            return true;
+                        }),
+                        typeMoq.It.isAny(),
+                        typeMoq.It.isAny(),
+                    ),
+                typeMoq.Times.once(),
+            );
+        });
+
+        test('should not set PROJECT_ROOT_PATH when no project provided', async () => {
+            const deferred2 = createDeferred();
+            const deferred3 = createDeferred();
+            execFactory = typeMoq.Mock.ofType<IPythonExecutionFactory>();
+            execFactory
+                .setup((x) => x.createActivatedEnvironment(typeMoq.It.isAny()))
+                .returns(() => {
+                    deferred2.resolve();
+                    return Promise.resolve(execService.object);
+                });
+            utilsWriteTestIdsFileStub.callsFake(() => {
+                deferred3.resolve();
+                return Promise.resolve('testIdPipe-mockName');
+            });
+            const testRun = typeMoq.Mock.ofType<TestRun>();
+            testRun.setup((t) => t.token).returns(() => ({ onCancellationRequested: () => undefined } as any));
+
+            const uri = Uri.file(myTestPath);
+            adapter = new PytestTestExecutionAdapter(configService);
+            // Call without project parameter
+            adapter.runTests(uri, [], TestRunProfileKind.Run, testRun.object, execFactory.object);
+
+            await deferred2.promise;
+            await deferred3.promise;
+            await deferred4.promise;
+            mockProc.trigger('close');
+
+            execService.verify(
+                (x) =>
+                    x.execObservable(
+                        typeMoq.It.isAny(),
+                        typeMoq.It.is<SpawnOptions>((options) => {
+                            assert.equal(options.env?.PROJECT_ROOT_PATH, undefined);
+                            return true;
+                        }),
+                    ),
+                typeMoq.Times.once(),
+            );
+        });
+
+        test('should not set project in LaunchOptions when no project provided', async () => {
+            const deferred3 = createDeferred();
+            utilsWriteTestIdsFileStub.callsFake(() => Promise.resolve('testIdPipe-mockName'));
+
+            debugLauncher
+                .setup((dl) => dl.launchDebugger(typeMoq.It.isAny(), typeMoq.It.isAny(), typeMoq.It.isAny()))
+                .returns(async (_opts, callback) => {
+                    if (typeof callback === 'function') {
+                        deferred3.resolve();
+                        callback();
+                    }
+                });
+
+            const testRun = typeMoq.Mock.ofType<TestRun>();
+            testRun.setup((t) => t.token).returns(() => ({ onCancellationRequested: () => undefined } as any));
+
+            const uri = Uri.file(myTestPath);
+            adapter = new PytestTestExecutionAdapter(configService);
+            // Call without project parameter
+            adapter.runTests(
+                uri,
+                [],
+                TestRunProfileKind.Debug,
+                testRun.object,
+                execFactory.object,
+                debugLauncher.object,
+            );
+
+            await deferred3.promise;
+
+            debugLauncher.verify(
+                (x) =>
+                    x.launchDebugger(
+                        typeMoq.It.is<LaunchOptions>((launchOptions) => {
+                            assert.equal(launchOptions.project, undefined);
+                            return true;
+                        }),
+                        typeMoq.It.isAny(),
+                        typeMoq.It.isAny(),
+                    ),
+                typeMoq.Times.once(),
+            );
+        });
+    });
 });
diff --git a/src/test/testing/testController/testMocks.ts b/src/test/testing/testController/testMocks.ts
new file mode 100644
index 000000000000..eb37d492f1d9
--- /dev/null
+++ b/src/test/testing/testController/testMocks.ts
@@ -0,0 +1,152 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+/**
+ * Centralized mock utilities for testing testController components.
+ * Re-use these helpers across multiple test files for consistency.
+ */
+
+import * as sinon from 'sinon';
+import * as typemoq from 'typemoq';
+import { TestItem, TestItemCollection, TestRun, Uri } from 'vscode';
+import { IPythonExecutionFactory } from '../../../client/common/process/types';
+import { ITestDebugLauncher } from '../../../client/testing/common/types';
+import { ProjectAdapter } from '../../../client/testing/testController/common/projectAdapter';
+import { ProjectExecutionDependencies } from '../../../client/testing/testController/common/projectTestExecution';
+import { TestProjectRegistry } from '../../../client/testing/testController/common/testProjectRegistry';
+import { ITestExecutionAdapter, ITestResultResolver } from '../../../client/testing/testController/common/types';
+
+/**
+ * Creates a mock TestItem with configurable properties.
+ * @param id - The unique ID of the test item
+ * @param uriPath - The file path for the test item's URI
+ * @param children - Optional array of child test items
+ */
+export function createMockTestItem(id: string, uriPath: string, children?: TestItem[]): TestItem {
+    const childMap = new Map<string, TestItem>();
+    children?.forEach((c) => childMap.set(c.id, c));
+
+    const mockChildren: TestItemCollection = {
+        size: childMap.size,
+        forEach: (callback: (item: TestItem, collection: TestItemCollection) => void) => {
+            childMap.forEach((item) => callback(item, mockChildren));
+        },
+        get: (itemId: string) => childMap.get(itemId),
+        add: () => {},
+        delete: () => {},
+        replace: () => {},
+        [Symbol.iterator]: function* () {
+            for (const [key, value] of childMap) {
+                yield [key, value] as [string, TestItem];
+            }
+        },
+    } as TestItemCollection;
+
+    return ({
+        id,
+        uri: Uri.file(uriPath),
+        children: mockChildren,
+        label: id,
+        canResolveChildren: false,
+        busy: false,
+        tags: [],
+        range: undefined,
+        error: undefined,
+        parent: undefined,
+    } as unknown) as TestItem;
+}
+
+/**
+ * Creates a mock TestItem without a URI.
+ * Useful for testing edge cases where test items have no associated file.
+ * @param id - The unique ID of the test item
+ */
+export function createMockTestItemWithoutUri(id: string): TestItem {
+    return ({
+        id,
+        uri: undefined,
+        children: ({ size: 0, forEach: () => {} } as unknown) as TestItemCollection,
+        label: id,
+    } as unknown) as TestItem;
+}
+
+export interface MockProjectAdapterConfig {
+    projectPath: string;
+    projectName: string;
+    pythonPath?: string;
+    testProvider?: 'pytest' | 'unittest';
+}
+
+export type MockProjectAdapter = ProjectAdapter & { executionAdapterStub: sinon.SinonStub };
+
+/**
+ * Creates a mock ProjectAdapter for testing project-based test execution.
+ * @param config - Configuration object with project details
+ * @returns A mock ProjectAdapter with an exposed executionAdapterStub for verification
+ */
+export function createMockProjectAdapter(config: MockProjectAdapterConfig): MockProjectAdapter {
+    const runTestsStub = sinon.stub().resolves();
+    const executionAdapter: ITestExecutionAdapter = ({
+        runTests: runTestsStub,
+    } as unknown) as ITestExecutionAdapter;
+
+    const resultResolverMock: ITestResultResolver = ({
+        vsIdToRunId: new Map<string, string>(),
+        runIdToVSid: new Map<string, string>(),
+        runIdToTestItem: new Map<string, TestItem>(),
+        detailedCoverageMap: new Map(),
+        resolveDiscovery: () => Promise.resolve(),
+        resolveExecution: () => {},
+    } as unknown) as ITestResultResolver;
+
+    const adapter = ({
+        projectUri: Uri.file(config.projectPath),
+        projectName: config.projectName,
+        workspaceUri: Uri.file(config.projectPath),
+        testProvider: config.testProvider ?? 'pytest',
+        pythonEnvironment: config.pythonPath
+            ? {
+                  execInfo: { run: { executable: config.pythonPath } },
+              }
+            : undefined,
+        pythonProject: {
+            name: config.projectName,
+            uri: Uri.file(config.projectPath),
+        },
+        executionAdapter,
+        discoveryAdapter: {} as any,
+        resultResolver: resultResolverMock,
+        isDiscovering: false,
+        isExecuting: false,
+        // Expose the stub for testing
+        executionAdapterStub: runTestsStub,
+    } as unknown) as MockProjectAdapter;
+
+    return adapter;
+}
+
+/**
+ * Creates mock dependencies for project test execution.
+ * @returns An object containing mocked ProjectExecutionDependencies
+ */
+export function createMockDependencies(): ProjectExecutionDependencies {
+    return {
+        projectRegistry: typemoq.Mock.ofType<TestProjectRegistry>().object,
+        pythonExecFactory: typemoq.Mock.ofType<IPythonExecutionFactory>().object,
+        debugLauncher: typemoq.Mock.ofType<ITestDebugLauncher>().object,
+    };
+}
+
+/**
+ * Creates a mock TestRun with common setup methods.
+ * @returns A TypeMoq mock of TestRun
+ */
+export function createMockTestRun(): typemoq.IMock<TestRun> {
+    const runMock = typemoq.Mock.ofType<TestRun>();
+    runMock.setup((r) => r.started(typemoq.It.isAny()));
+    runMock.setup((r) => r.passed(typemoq.It.isAny(), typemoq.It.isAny()));
+    runMock.setup((r) => r.failed(typemoq.It.isAny(), typemoq.It.isAny(), typemoq.It.isAny()));
+    runMock.setup((r) => r.skipped(typemoq.It.isAny()));
+    runMock.setup((r) => r.end());
+    return runMock;
+}
diff --git a/src/test/testing/testController/unittest/testDiscoveryAdapter.unit.test.ts b/src/test/testing/testController/unittest/testDiscoveryAdapter.unit.test.ts
index 4dae070bccbe..031f30afba8a 100644
--- a/src/test/testing/testController/unittest/testDiscoveryAdapter.unit.test.ts
+++ b/src/test/testing/testController/unittest/testDiscoveryAdapter.unit.test.ts
@@ -22,6 +22,7 @@ import {
     SpawnOptions,
 } from '../../../../client/common/process/types';
 import * as extapi from '../../../../client/envExt/api.internal';
+import { ProjectAdapter } from '../../../../client/testing/testController/common/projectAdapter';
 
 suite('Unittest test discovery adapter', () => {
     let configService: IConfigurationService;
@@ -244,4 +245,98 @@ suite('Unittest test discovery adapter', () => {
         await discoveryPromise;
         assert.ok(true, 'Test resolves correctly when triggering a cancellation token in exec observable.');
     });
+
+    test('DiscoverTests should set PROJECT_ROOT_PATH when project is provided', async () => {
+        const projectPath = path.join('/', 'workspace', 'myproject');
+        const mockProject = ({
+            projectId: 'file:///workspace/myproject',
+            projectUri: Uri.file(projectPath),
+            projectName: 'myproject',
+            workspaceUri: Uri.file('/workspace'),
+        } as unknown) as ProjectAdapter;
+
+        const adapter = new UnittestTestDiscoveryAdapter(configService);
+        adapter.discoverTests(uri, execFactory.object, undefined, undefined, mockProject);
+        const script = path.join(EXTENSION_ROOT_DIR, 'python_files', 'unittestadapter', 'discovery.py');
+        const argsExpected = [script, '--udiscovery', '-v', '-s', '.', '-p', 'test*'];
+
+        // must await until the execObservable is called in order to verify it
+        await deferred.promise;
+
+        execService.verify(
+            (x) =>
+                x.execObservable(
+                    typeMoq.It.is<Array<string>>((argsActual) => {
+                        try {
+                            assert.equal(argsActual.length, argsExpected.length);
+                            assert.deepEqual(argsActual, argsExpected);
+                            return true;
+                        } catch (e) {
+                            console.error(e);
+                            throw e;
+                        }
+                    }),
+                    typeMoq.It.is<SpawnOptions>((options) => {
+                        try {
+                            // Verify PROJECT_ROOT_PATH is set when project is provided
+                            assert.strictEqual(
+                                options.env?.PROJECT_ROOT_PATH,
+                                projectPath,
+                                'PROJECT_ROOT_PATH should be set to project URI path',
+                            );
+                            assert.equal(options.cwd, expectedPath);
+                            assert.equal(options.throwOnStdErr, true);
+                            return true;
+                        } catch (e) {
+                            console.error(e);
+                            throw e;
+                        }
+                    }),
+                ),
+            typeMoq.Times.once(),
+        );
+    });
+
+    test('DiscoverTests should NOT set PROJECT_ROOT_PATH when no project is provided', async () => {
+        const adapter = new UnittestTestDiscoveryAdapter(configService);
+        adapter.discoverTests(uri, execFactory.object);
+        const script = path.join(EXTENSION_ROOT_DIR, 'python_files', 'unittestadapter', 'discovery.py');
+        const argsExpected = [script, '--udiscovery', '-v', '-s', '.', '-p', 'test*'];
+
+        // must await until the execObservable is called in order to verify it
+        await deferred.promise;
+
+        execService.verify(
+            (x) =>
+                x.execObservable(
+                    typeMoq.It.is<Array<string>>((argsActual) => {
+                        try {
+                            assert.equal(argsActual.length, argsExpected.length);
+                            assert.deepEqual(argsActual, argsExpected);
+                            return true;
+                        } catch (e) {
+                            console.error(e);
+                            throw e;
+                        }
+                    }),
+                    typeMoq.It.is<SpawnOptions>((options) => {
+                        try {
+                            // Verify PROJECT_ROOT_PATH is NOT set when no project is provided
+                            assert.strictEqual(
+                                options.env?.PROJECT_ROOT_PATH,
+                                undefined,
+                                'PROJECT_ROOT_PATH should NOT be set when no project is provided',
+                            );
+                            assert.equal(options.cwd, expectedPath);
+                            assert.equal(options.throwOnStdErr, true);
+                            return true;
+                        } catch (e) {
+                            console.error(e);
+                            throw e;
+                        }
+                    }),
+                ),
+            typeMoq.Times.once(),
+        );
+    });
 });
diff --git a/src/test/testing/testController/unittest/testExecutionAdapter.unit.test.ts b/src/test/testing/testController/unittest/testExecutionAdapter.unit.test.ts
index ab492736f0ad..8a86e9228567 100644
--- a/src/test/testing/testController/unittest/testExecutionAdapter.unit.test.ts
+++ b/src/test/testing/testController/unittest/testExecutionAdapter.unit.test.ts
@@ -22,6 +22,8 @@ import { MockChildProcess } from '../../../mocks/mockChildProcess';
 import { traceInfo } from '../../../../client/logging';
 import { UnittestTestExecutionAdapter } from '../../../../client/testing/testController/unittest/testExecutionAdapter';
 import * as extapi from '../../../../client/envExt/api.internal';
+import { ProjectAdapter } from '../../../../client/testing/testController/common/projectAdapter';
+import { createMockProjectAdapter } from '../testMocks';
 
 suite('Unittest test execution adapter', () => {
     let configService: IConfigurationService;
@@ -321,4 +323,259 @@ suite('Unittest test execution adapter', () => {
             typeMoq.Times.once(),
         );
     });
+
+    test('RunTests should set PROJECT_ROOT_PATH when project is provided', async () => {
+        const deferred2 = createDeferred();
+        const deferred3 = createDeferred();
+        execFactory = typeMoq.Mock.ofType<IPythonExecutionFactory>();
+        execFactory
+            .setup((x) => x.createActivatedEnvironment(typeMoq.It.isAny()))
+            .returns(() => {
+                deferred2.resolve();
+                return Promise.resolve(execService.object);
+            });
+        utilsWriteTestIdsFileStub.callsFake(() => {
+            deferred3.resolve();
+            return Promise.resolve('testIdPipe-mockName');
+        });
+
+        const projectPath = path.join('/', 'workspace', 'myproject');
+        const mockProject = ({
+            projectId: 'file:///workspace/myproject',
+            projectUri: Uri.file(projectPath),
+            projectName: 'myproject',
+            workspaceUri: Uri.file('/workspace'),
+        } as unknown) as ProjectAdapter;
+
+        const testRun = typeMoq.Mock.ofType<TestRun>();
+        testRun.setup((t) => t.token).returns(() => ({ onCancellationRequested: () => undefined } as any));
+        const uri = Uri.file(myTestPath);
+        adapter = new UnittestTestExecutionAdapter(configService);
+        adapter.runTests(
+            uri,
+            [],
+            TestRunProfileKind.Run,
+            testRun.object,
+            execFactory.object,
+            undefined, // debugLauncher
+            undefined, // interpreter
+            mockProject,
+        );
+
+        await deferred2.promise;
+        await deferred3.promise;
+        await deferred4.promise;
+        mockProc.trigger('close');
+
+        const pathToPythonFiles = path.join(EXTENSION_ROOT_DIR, 'python_files');
+        const pathToExecutionScript = path.join(pathToPythonFiles, 'unittestadapter', 'execution.py');
+        const expectedArgs = [pathToExecutionScript, '--udiscovery', '.'];
+
+        execService.verify(
+            (x) =>
+                x.execObservable(
+                    expectedArgs,
+                    typeMoq.It.is<SpawnOptions>((options) => {
+                        // Verify PROJECT_ROOT_PATH is set when project is provided
+                        assert.strictEqual(
+                            options.env?.PROJECT_ROOT_PATH,
+                            projectPath,
+                            'PROJECT_ROOT_PATH should be set to project URI path',
+                        );
+                        return true;
+                    }),
+                ),
+            typeMoq.Times.once(),
+        );
+    });
+
+    test('RunTests should NOT set PROJECT_ROOT_PATH when no project is provided', async () => {
+        const deferred2 = createDeferred();
+        const deferred3 = createDeferred();
+        execFactory = typeMoq.Mock.ofType<IPythonExecutionFactory>();
+        execFactory
+            .setup((x) => x.createActivatedEnvironment(typeMoq.It.isAny()))
+            .returns(() => {
+                deferred2.resolve();
+                return Promise.resolve(execService.object);
+            });
+        utilsWriteTestIdsFileStub.callsFake(() => {
+            deferred3.resolve();
+            return Promise.resolve('testIdPipe-mockName');
+        });
+        const testRun = typeMoq.Mock.ofType<TestRun>();
+        testRun.setup((t) => t.token).returns(() => ({ onCancellationRequested: () => undefined } as any));
+        const uri = Uri.file(myTestPath);
+        adapter = new UnittestTestExecutionAdapter(configService);
+        adapter.runTests(uri, [], TestRunProfileKind.Run, testRun.object, execFactory.object);
+
+        await deferred2.promise;
+        await deferred3.promise;
+        await deferred4.promise;
+        mockProc.trigger('close');
+
+        const pathToPythonFiles = path.join(EXTENSION_ROOT_DIR, 'python_files');
+        const pathToExecutionScript = path.join(pathToPythonFiles, 'unittestadapter', 'execution.py');
+        const expectedArgs = [pathToExecutionScript, '--udiscovery', '.'];
+
+        execService.verify(
+            (x) =>
+                x.execObservable(
+                    expectedArgs,
+                    typeMoq.It.is<SpawnOptions>((options) => {
+                        // Verify PROJECT_ROOT_PATH is NOT set when no project is provided
+                        assert.strictEqual(
+                            options.env?.PROJECT_ROOT_PATH,
+                            undefined,
+                            'PROJECT_ROOT_PATH should NOT be set when no project is provided',
+                        );
+                        return true;
+                    }),
+                ),
+            typeMoq.Times.once(),
+        );
+    });
+
+    test('Debug mode with project should pass project.pythonProject to debug launcher', async () => {
+        const deferred3 = createDeferred();
+        utilsWriteTestIdsFileStub.callsFake(() => Promise.resolve('testIdPipe-mockName'));
+
+        debugLauncher
+            .setup((dl) => dl.launchDebugger(typeMoq.It.isAny(), typeMoq.It.isAny(), typeMoq.It.isAny()))
+            .returns(async (_opts, callback) => {
+                traceInfo('stubs launch debugger');
+                if (typeof callback === 'function') {
+                    deferred3.resolve();
+                    callback();
+                }
+            });
+
+        const testRun = typeMoq.Mock.ofType<TestRun>();
+        testRun
+            .setup((t) => t.token)
+            .returns(
+                () =>
+                    ({
+                        onCancellationRequested: () => undefined,
+                    } as any),
+            );
+
+        const projectPath = path.join('/', 'workspace', 'myproject');
+        const mockProject = createMockProjectAdapter({
+            projectPath,
+            projectName: 'myproject (Python 3.11)',
+            pythonPath: '/custom/python/path',
+            testProvider: 'unittest',
+        });
+
+        const uri = Uri.file(myTestPath);
+        adapter = new UnittestTestExecutionAdapter(configService);
+        adapter.runTests(
+            uri,
+            [],
+            TestRunProfileKind.Debug,
+            testRun.object,
+            execFactory.object,
+            debugLauncher.object,
+            undefined,
+            mockProject,
+        );
+
+        await deferred3.promise;
+
+        debugLauncher.verify(
+            (x) =>
+                x.launchDebugger(
+                    typeMoq.It.is<LaunchOptions>((launchOptions) => {
+                        // Project should be passed for project-based debugging
+                        assert.ok(launchOptions.project, 'project should be defined');
+                        assert.equal(launchOptions.project?.name, 'myproject (Python 3.11)');
+                        assert.equal(launchOptions.project?.uri.fsPath, projectPath);
+                        return true;
+                    }),
+                    typeMoq.It.isAny(),
+                    typeMoq.It.isAny(),
+                ),
+            typeMoq.Times.once(),
+        );
+    });
+
+    test('useEnvExtension mode with project should use project pythonEnvironment', async () => {
+        // Enable the useEnvExtension path
+        useEnvExtensionStub.returns(true);
+
+        utilsWriteTestIdsFileStub.callsFake(() => Promise.resolve('testIdPipe-mockName'));
+
+        // Store the deferredTillServerClose so we can resolve it
+        let serverCloseDeferred: Deferred<void> | undefined;
+        utilsStartRunResultNamedPipeStub.callsFake((_callback: unknown, deferred: Deferred<void>, _token: unknown) => {
+            serverCloseDeferred = deferred;
+            return Promise.resolve('runResultPipe-mockName');
+        });
+
+        const projectPath = path.join('/', 'workspace', 'myproject');
+        const mockProject = createMockProjectAdapter({
+            projectPath,
+            projectName: 'myproject (Python 3.11)',
+            pythonPath: '/custom/python/path',
+            testProvider: 'unittest',
+        });
+
+        // Stub runInBackground to capture which environment was used
+        const runInBackgroundStub = sinon.stub(extapi, 'runInBackground');
+        const exitCallbacks: ((code: number, signal: string | null) => void)[] = [];
+        // Promise that resolves when the production code registers its onExit handler
+        const onExitRegistered = createDeferred<void>();
+        const mockProc2 = {
+            stdout: { on: sinon.stub() },
+            stderr: { on: sinon.stub() },
+            onExit: (cb: (code: number, signal: string | null) => void) => {
+                exitCallbacks.push(cb);
+                onExitRegistered.resolve();
+            },
+            kill: sinon.stub(),
+        };
+        runInBackgroundStub.callsFake(() => Promise.resolve(mockProc2 as any));
+
+        const testRun = typeMoq.Mock.ofType<TestRun>();
+        testRun
+            .setup((t) => t.token)
+            .returns(
+                () =>
+                    ({
+                        onCancellationRequested: () => undefined,
+                    } as any),
+            );
+
+        const uri = Uri.file(myTestPath);
+        adapter = new UnittestTestExecutionAdapter(configService);
+        const runPromise = adapter.runTests(
+            uri,
+            [],
+            TestRunProfileKind.Run,
+            testRun.object,
+            execFactory.object,
+            debugLauncher.object,
+            undefined,
+            mockProject,
+        );
+
+        // Wait for production code to register its onExit handler
+        await onExitRegistered.promise;
+
+        // Simulate process exit to complete the test
+        exitCallbacks.forEach((cb) => cb(0, null));
+
+        // Resolve the server close deferred to allow the runTests to complete
+        serverCloseDeferred?.resolve();
+
+        await runPromise;
+
+        // Verify runInBackground was called with the project's Python environment
+        sinon.assert.calledOnce(runInBackgroundStub);
+        const envArg = runInBackgroundStub.firstCall.args[0];
+        // The environment should be the project's pythonEnvironment
+        assert.ok(envArg, 'runInBackground should be called with an environment');
+        assert.equal(envArg.execInfo?.run?.executable, '/custom/python/path');
+    });
 });
diff --git a/src/test/testing/testController/utils.unit.test.ts b/src/test/testing/testController/utils.unit.test.ts
index c6d9a70831a9..3cba6fb697a5 100644
--- a/src/test/testing/testController/utils.unit.test.ts
+++ b/src/test/testing/testController/utils.unit.test.ts
@@ -393,16 +393,18 @@ suite('populateTestTree tests', () => {
         };
 
         const rootChildrenAddStub = sandbox.stub();
+        const rootChildrenGetStub = sandbox.stub().returns(undefined);
         const mockRootItem: TestItem = {
-            children: { add: rootChildrenAddStub },
+            children: { add: rootChildrenAddStub, get: rootChildrenGetStub },
         } as any;
 
         const nestedChildrenAddStub = sandbox.stub();
+        const nestedChildrenGetStub = sandbox.stub().returns(undefined);
         const mockNestedNode: TestItem = {
             id: 'nested-id',
             canResolveChildren: true,
             tags: [],
-            children: { add: nestedChildrenAddStub },
+            children: { add: nestedChildrenAddStub, get: nestedChildrenGetStub },
         } as any;
 
         const mockNestedTestItem: TestItem = {
@@ -460,14 +462,15 @@ suite('populateTestTree tests', () => {
         };
 
         const rootChildrenAddStub = sandbox.stub();
-        const mockRootItem: TestItem = {
-            children: { add: rootChildrenAddStub },
-        } as any;
-
         const existingChildrenAddStub = sandbox.stub();
+        const existingChildrenGetStub = sandbox.stub().returns(undefined);
         const existingNode: TestItem = {
             id: 'existing-id',
-            children: { add: existingChildrenAddStub },
+            children: { add: existingChildrenAddStub, get: existingChildrenGetStub },
+        } as any;
+        const rootChildrenGetStub = sandbox.stub().withArgs('existing-id').returns(existingNode);
+        const mockRootItem: TestItem = {
+            children: { add: rootChildrenAddStub, get: rootChildrenGetStub },
         } as any;
 
         const mockTestItem: TestItem = {
@@ -597,14 +600,14 @@ suite('populateTestTree tests', () => {
             id: 'root-id',
             tags: [],
             canResolveChildren: true,
-            children: { add: sandbox.stub() },
+            children: { add: sandbox.stub(), get: sandbox.stub().returns(undefined) },
         } as any;
 
         const mockNestedNode: TestItem = {
             id: 'nested-id',
             tags: [],
             canResolveChildren: true,
-            children: { add: sandbox.stub() },
+            children: { add: sandbox.stub(), get: sandbox.stub().returns(undefined) },
         } as any;
 
         const mockTestItem: TestItem = {
diff --git a/src/test/vscode-mock.ts b/src/test/vscode-mock.ts
index 3e2816afbbde..b7ea2bc549a0 100644
--- a/src/test/vscode-mock.ts
+++ b/src/test/vscode-mock.ts
@@ -7,6 +7,7 @@ import * as vscode from 'vscode';
 import * as vscodeMocks from './mocks/vsc';
 import { vscMockTelemetryReporter } from './mocks/vsc/telemetryReporter';
 import { anything, instance, mock, when } from 'ts-mockito';
+import { TestItem } from 'vscode';
 const Module = require('module');
 
 type VSCode = typeof vscode;
@@ -148,3 +149,29 @@ mockedVSCode.TestRunProfileKind = vscodeMocks.TestRunProfileKind;
 (mockedVSCode as any).StatementCoverage = class StatementCoverage {
     constructor(public executed: number | boolean, public location: any, public branches?: any) {}
 };
+
+// Mock TestController for vscode.tests namespace
+function createMockTestController(): vscode.TestController {
+    const disposable = { dispose: () => undefined };
+    return ({
+        items: {
+            forEach: () => undefined,
+            get: () => undefined,
+            add: () => undefined,
+            replace: () => undefined,
+            delete: () => undefined,
+            size: 0,
+            [Symbol.iterator]: function* () {},
+        },
+        createRunProfile: () => disposable,
+        createTestItem: () => ({} as TestItem),
+        dispose: () => undefined,
+        resolveHandler: undefined,
+        refreshHandler: undefined,
+    } as unknown) as vscode.TestController;
+}
+
+// Add tests namespace with createTestController
+(mockedVSCode as any).tests = {
+    createTestController: (_id: string, _label: string) => createMockTestController(),
+};

From 3c0301d5f8af9826b710f989f2ed6e569f6e8a45 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Tue, 17 Feb 2026 10:13:01 -0800
Subject: [PATCH 144/178] Bump version to 2026.2.0 in package.json (#25801)

---
 package-lock.json | 4 ++--
 package.json      | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 863c2a720678..96e5097bb9c7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "python",
-    "version": "2026.1.0-dev",
+    "version": "2026.2.0",
     "lockfileVersion": 2,
     "requires": true,
     "packages": {
         "": {
             "name": "python",
-            "version": "2026.1.0-dev",
+            "version": "2026.2.0",
             "license": "MIT",
             "dependencies": {
                 "@iarna/toml": "^3.0.0",
diff --git a/package.json b/package.json
index bc9131276c59..d2d28bee1c4c 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
     "name": "python",
     "displayName": "Python",
     "description": "Python language support with extension access points for IntelliSense (Pylance), Debugging (Python Debugger), linting, formatting, refactoring, unit tests, and more.",
-    "version": "2026.1.0-dev",
+    "version": "2026.2.0",
     "featureFlags": {
         "usingNewInterpreterStorage": true
     },

From 85898d5624adb7ab3940bff9fec37ae4ecce5b1d Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 2 Mar 2026 14:47:09 -0800
Subject: [PATCH 145/178] Bump actions/upload-artifact from 6 to 7 (#25817)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps
[actions/upload-artifact](https://github.com/actions/upload-artifact)
from 6 to 7.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/actions/upload-artifact/releases">actions/upload-artifact's
releases</a>.</em></p>
<blockquote>
<h2>v7.0.0</h2>
<h2>v7 What's new</h2>
<h3>Direct Uploads</h3>
<p>Adds support for uploading single files directly (unzipped). Callers
can set the new <code>archive</code> parameter to <code>false</code> to
skip zipping the file during upload. Right now, we only support single
files. The action will fail if the glob passed resolves to multiple
files. The <code>name</code> parameter is also ignored with this
setting. Instead, the name of the artifact will be the name of the
uploaded file.</p>
<h3>ESM</h3>
<p>To support new versions of the <code>@actions/*</code> packages,
we've upgraded the package to ESM.</p>
<h2>What's Changed</h2>
<ul>
<li>Add proxy integration test by <a
href="https://github.com/Link"><code>@​Link</code></a>- in <a
href="https://redirect.github.com/actions/upload-artifact/pull/754">actions/upload-artifact#754</a></li>
<li>Upgrade the module to ESM and bump dependencies by <a
href="https://github.com/danwkennedy"><code>@​danwkennedy</code></a> in
<a
href="https://redirect.github.com/actions/upload-artifact/pull/762">actions/upload-artifact#762</a></li>
<li>Support direct file uploads by <a
href="https://github.com/danwkennedy"><code>@​danwkennedy</code></a> in
<a
href="https://redirect.github.com/actions/upload-artifact/pull/764">actions/upload-artifact#764</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/Link"><code>@​Link</code></a>- made
their first contribution in <a
href="https://redirect.github.com/actions/upload-artifact/pull/754">actions/upload-artifact#754</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/upload-artifact/compare/v6...v7.0.0">https://github.com/actions/upload-artifact/compare/v6...v7.0.0</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/actions/upload-artifact/commit/bbbca2ddaa5d8feaa63e36b76fdaad77386f024f"><code>bbbca2d</code></a>
Support direct file uploads (<a
href="https://redirect.github.com/actions/upload-artifact/issues/764">#764</a>)</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/589182c5a4cec8920b8c1bce3e2fab1c97a02296"><code>589182c</code></a>
Upgrade the module to ESM and bump dependencies (<a
href="https://redirect.github.com/actions/upload-artifact/issues/762">#762</a>)</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/47309c993abb98030a35d55ef7ff34b7fa1074b5"><code>47309c9</code></a>
Merge pull request <a
href="https://redirect.github.com/actions/upload-artifact/issues/754">#754</a>
from actions/Link-/add-proxy-integration-tests</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/02a8460834e70dab0ce194c64360c59dc1475ef0"><code>02a8460</code></a>
Add proxy integration test</li>
<li>See full diff in <a
href="https://github.com/actions/upload-artifact/compare/v6...v7">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=actions/upload-artifact&package-manager=github_actions&previous-version=6&new-version=7)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
that have been made to it
- `@dependabot show <dependency name> ignore conditions` will show all
of the ignore conditions of the specified dependency
- `@dependabot ignore this major version` will close this PR and stop
Dependabot creating any more for this major version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this minor version` will close this PR and stop
Dependabot creating any more for this minor version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this dependency` will close this PR and stop
Dependabot creating any more for this dependency (unless you reopen the
PR or upgrade to it yourself)


</details>

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 .github/workflows/pr-check.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/pr-check.yml b/.github/workflows/pr-check.yml
index 95024788d915..82b42c841fce 100644
--- a/.github/workflows/pr-check.yml
+++ b/.github/workflows/pr-check.yml
@@ -682,7 +682,7 @@ jobs:
         run: npm run test:cover:report
 
       - name: Upload HTML report
-        uses: actions/upload-artifact@v6
+        uses: actions/upload-artifact@v7
         with:
           name: ${{ runner.os }}-coverage-report-html
           path: ./coverage

From a56c733786cab910783a28ab11acd0add24982a3 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 2 Mar 2026 14:47:12 -0800
Subject: [PATCH 146/178] Bump actions/upload-artifact from 6 to 7 in
 /.github/actions/build-vsix (#25818)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps
[actions/upload-artifact](https://github.com/actions/upload-artifact)
from 6 to 7.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/actions/upload-artifact/releases">actions/upload-artifact's
releases</a>.</em></p>
<blockquote>
<h2>v7.0.0</h2>
<h2>v7 What's new</h2>
<h3>Direct Uploads</h3>
<p>Adds support for uploading single files directly (unzipped). Callers
can set the new <code>archive</code> parameter to <code>false</code> to
skip zipping the file during upload. Right now, we only support single
files. The action will fail if the glob passed resolves to multiple
files. The <code>name</code> parameter is also ignored with this
setting. Instead, the name of the artifact will be the name of the
uploaded file.</p>
<h3>ESM</h3>
<p>To support new versions of the <code>@actions/*</code> packages,
we've upgraded the package to ESM.</p>
<h2>What's Changed</h2>
<ul>
<li>Add proxy integration test by <a
href="https://github.com/Link"><code>@​Link</code></a>- in <a
href="https://redirect.github.com/actions/upload-artifact/pull/754">actions/upload-artifact#754</a></li>
<li>Upgrade the module to ESM and bump dependencies by <a
href="https://github.com/danwkennedy"><code>@​danwkennedy</code></a> in
<a
href="https://redirect.github.com/actions/upload-artifact/pull/762">actions/upload-artifact#762</a></li>
<li>Support direct file uploads by <a
href="https://github.com/danwkennedy"><code>@​danwkennedy</code></a> in
<a
href="https://redirect.github.com/actions/upload-artifact/pull/764">actions/upload-artifact#764</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/Link"><code>@​Link</code></a>- made
their first contribution in <a
href="https://redirect.github.com/actions/upload-artifact/pull/754">actions/upload-artifact#754</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/upload-artifact/compare/v6...v7.0.0">https://github.com/actions/upload-artifact/compare/v6...v7.0.0</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/actions/upload-artifact/commit/bbbca2ddaa5d8feaa63e36b76fdaad77386f024f"><code>bbbca2d</code></a>
Support direct file uploads (<a
href="https://redirect.github.com/actions/upload-artifact/issues/764">#764</a>)</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/589182c5a4cec8920b8c1bce3e2fab1c97a02296"><code>589182c</code></a>
Upgrade the module to ESM and bump dependencies (<a
href="https://redirect.github.com/actions/upload-artifact/issues/762">#762</a>)</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/47309c993abb98030a35d55ef7ff34b7fa1074b5"><code>47309c9</code></a>
Merge pull request <a
href="https://redirect.github.com/actions/upload-artifact/issues/754">#754</a>
from actions/Link-/add-proxy-integration-tests</li>
<li><a
href="https://github.com/actions/upload-artifact/commit/02a8460834e70dab0ce194c64360c59dc1475ef0"><code>02a8460</code></a>
Add proxy integration test</li>
<li>See full diff in <a
href="https://github.com/actions/upload-artifact/compare/v6...v7">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=actions/upload-artifact&package-manager=github_actions&previous-version=6&new-version=7)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
that have been made to it
- `@dependabot show <dependency name> ignore conditions` will show all
of the ignore conditions of the specified dependency
- `@dependabot ignore this major version` will close this PR and stop
Dependabot creating any more for this major version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this minor version` will close this PR and stop
Dependabot creating any more for this minor version (unless you reopen
the PR or upgrade to it yourself)
- `@dependabot ignore this dependency` will close this PR and stop
Dependabot creating any more for this dependency (unless you reopen the
PR or upgrade to it yourself)


</details>

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 .github/actions/build-vsix/action.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/actions/build-vsix/action.yml b/.github/actions/build-vsix/action.yml
index 95fec979b08e..40d8d73cb4c6 100644
--- a/.github/actions/build-vsix/action.yml
+++ b/.github/actions/build-vsix/action.yml
@@ -93,7 +93,7 @@ runs:
         VSIX_NAME: ${{ inputs.vsix_name }}
 
     - name: Upload VSIX
-      uses: actions/upload-artifact@v6
+      uses: actions/upload-artifact@v7
       with:
         name: ${{ inputs.artifact_name }}
         path: ${{ inputs.vsix_name }}

From 8d92b829e5ae76053e4803e9b213163c6e63ca29 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 2 Mar 2026 14:47:41 -0800
Subject: [PATCH 147/178] Bump jakebailey/pyright-action from 2.3.3 to 3.0.2
 (#25799)

Bumps
[jakebailey/pyright-action](https://github.com/jakebailey/pyright-action)
from 2.3.3 to 3.0.2.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/jakebailey/pyright-action/releases">jakebailey/pyright-action's
releases</a>.</em></p>
<blockquote>
<h2>v3.0.2</h2>
<ul>
<li>Update mentioned checkout in readme (03fd2c0)</li>
<li>Update mentioned setup-python in readme (9fb0169)</li>
<li>Switch to tiny-jsonc (19c6c23)</li>
<li>fix lint (1296485)</li>
<li>output metafile in build (20b106d)</li>
</ul>
<h2>v3.0.1</h2>
<ul>
<li>Make docs reference v3 (c781035)</li>
</ul>
<h2>v3.0.0</h2>
<ul>
<li>Update github actions (<a
href="https://redirect.github.com/jakebailey/pyright-action/issues/208">#208</a>)
(5ceb87e)</li>
<li>Update actions/cache action to v5 (<a
href="https://redirect.github.com/jakebailey/pyright-action/issues/210">#210</a>)
(49e6fb4)</li>
<li>Disable type lint of build script (d991920)</li>
<li>Fix tests (1edc551)</li>
<li>Update action related deps (ce79cd6)</li>
<li>Update non-action deps (88a1ce8)</li>
<li>More v24 updates (c45be15)</li>
<li>Bump to v3, node24 (7dc11cf)</li>
<li>Update deps (f8c6100)</li>
<li>Update github actions (<a
href="https://redirect.github.com/jakebailey/pyright-action/issues/191">#191</a>)
(e20b42a)</li>
<li>Update github actions to v6 (<a
href="https://redirect.github.com/jakebailey/pyright-action/issues/195">#195</a>)
(f5686a6)</li>
<li>Update deps (e058033)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/jakebailey/pyright-action/commit/8ec14b5cfe41f26e5f41686a31eb6012758217ef"><code>8ec14b5</code></a>
Release v3.0.2</li>
<li><a
href="https://github.com/jakebailey/pyright-action/commit/03fd2c0c594f76acd9e4472e00361d0ac371d3c8"><code>03fd2c0</code></a>
Update mentioned checkout in readme</li>
<li><a
href="https://github.com/jakebailey/pyright-action/commit/9fb0169fdc561233dc09859a051595e53957b9ca"><code>9fb0169</code></a>
Update mentioned setup-python in readme</li>
<li><a
href="https://github.com/jakebailey/pyright-action/commit/19c6c236fc5e080abdd5561f14f026ca883378c5"><code>19c6c23</code></a>
Switch to tiny-jsonc</li>
<li><a
href="https://github.com/jakebailey/pyright-action/commit/12964857f8310c85319bcada3388572b1f5cf412"><code>1296485</code></a>
fix lint</li>
<li><a
href="https://github.com/jakebailey/pyright-action/commit/20b106db9ef172e8c30782f0a3c4d9a99afa6eee"><code>20b106d</code></a>
output metafile in build</li>
<li><a
href="https://github.com/jakebailey/pyright-action/commit/9b73e5f097fdaa21dcce526700dcf7415e09d3e6"><code>9b73e5f</code></a>
Release v3.0.1</li>
<li><a
href="https://github.com/jakebailey/pyright-action/commit/c781035d4810ccba2ce648980dcc58eb7169468a"><code>c781035</code></a>
Make docs reference v3</li>
<li><a
href="https://github.com/jakebailey/pyright-action/commit/61e7045315c3d22664d21e4fed96f366a9459e06"><code>61e7045</code></a>
Release v3.0.0</li>
<li><a
href="https://github.com/jakebailey/pyright-action/commit/5ceb87eecfe07b8c6b4c1aa53086b343fde0db9c"><code>5ceb87e</code></a>
Update github actions (<a
href="https://redirect.github.com/jakebailey/pyright-action/issues/208">#208</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/jakebailey/pyright-action/compare/6cabc0f01c4994be48fd45cd9dbacdd6e1ee6e5e...8ec14b5cfe41f26e5f41686a31eb6012758217ef">compare
view</a></li>
</ul>
</details>
<br />


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You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
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Signed-off-by: dependabot[bot] <support@github.com>
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---
 .github/workflows/build.yml    | 2 +-
 .github/workflows/pr-check.yml | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 74f5d5a58a3a..42447b873b3b 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -155,7 +155,7 @@ jobs:
           python -m pip install --upgrade -r build/test-requirements.txt
 
       - name: Run Pyright
-        uses: jakebailey/pyright-action@6cabc0f01c4994be48fd45cd9dbacdd6e1ee6e5e # v2.3.3
+        uses: jakebailey/pyright-action@8ec14b5cfe41f26e5f41686a31eb6012758217ef # v3.0.2
         with:
           version: 1.1.308
           working-directory: 'python_files'
diff --git a/.github/workflows/pr-check.yml b/.github/workflows/pr-check.yml
index 82b42c841fce..2a0bbb598cb0 100644
--- a/.github/workflows/pr-check.yml
+++ b/.github/workflows/pr-check.yml
@@ -138,7 +138,7 @@ jobs:
           python -m pip install --upgrade -r build/test-requirements.txt
 
       - name: Run Pyright
-        uses: jakebailey/pyright-action@6cabc0f01c4994be48fd45cd9dbacdd6e1ee6e5e # v2.3.3
+        uses: jakebailey/pyright-action@8ec14b5cfe41f26e5f41686a31eb6012758217ef # v3.0.2
         with:
           version: 1.1.308
           working-directory: 'python_files'

From 23555316ba396af06148aa5989d807b2aa8ce42a Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 2 Mar 2026 22:48:38 +0000
Subject: [PATCH 148/178] Bump webpack from 5.94.0 to 5.105.0 (#25766)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps [webpack](https://github.com/webpack/webpack) from 5.94.0 to
5.105.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/webpack/webpack/releases">webpack's
releases</a>.</em></p>
<blockquote>
<h2>v5.105.0</h2>
<h3>Minor Changes</h3>
<ul>
<li>
<p>Allow resolving worker module by export condition name when using
<code>new Worker()</code> (by <a
href="https://github.com/hai-x"><code>@​hai-x</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20353">#20353</a>)</p>
</li>
<li>
<p>Detect conditional imports to avoid compile-time linking errors for
non-existent exports. (by <a
href="https://github.com/hai-x"><code>@​hai-x</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20320">#20320</a>)</p>
</li>
<li>
<p>Added the <code>tsconfig</code> option for the <code>resolver</code>
options (replacement for <code>tsconfig-paths-webpack-plugin</code>).
Can be <code>false</code> (disabled), <code>true</code> (use the default
<code>tsconfig.json</code> file to search for it), a string path to
<code>tsconfig.json</code>, or an object with <code>configFile</code>
and <code>references</code> options. (by <a
href="https://github.com/alexander-akait"><code>@​alexander-akait</code></a>
in <a
href="https://redirect.github.com/webpack/webpack/pull/20400">#20400</a>)</p>
</li>
<li>
<p>Support <code>import.defer()</code> for context modules. (by <a
href="https://github.com/ahabhgk"><code>@​ahabhgk</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20399">#20399</a>)</p>
</li>
<li>
<p>Added support for array values ​​to the <code>devtool</code> option.
(by <a href="https://github.com/hai-x"><code>@​hai-x</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20191">#20191</a>)</p>
</li>
<li>
<p>Improve rendering node built-in modules for ECMA module output. (by
<a href="https://github.com/hai-x"><code>@​hai-x</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20255">#20255</a>)</p>
</li>
<li>
<p>Unknown import.meta properties are now determined at runtime instead
of being statically analyzed at compile time. (by <a
href="https://github.com/xiaoxiaojx"><code>@​xiaoxiaojx</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20312">#20312</a>)</p>
</li>
</ul>
<h3>Patch Changes</h3>
<ul>
<li>
<p>Fixed ESM default export handling for <code>.mjs</code> files in
Module Federation (by <a
href="https://github.com/y-okt"><code>@​y-okt</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20189">#20189</a>)</p>
</li>
<li>
<p>Optimized <code>import.meta.env</code> handling in destructuring
assignments by using cached stringified environment definitions. (by <a
href="https://github.com/xiaoxiaojx"><code>@​xiaoxiaojx</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20313">#20313</a>)</p>
</li>
<li>
<p>Respect the <code>stats.errorStack</code> option in stats output. (by
<a
href="https://github.com/samarthsinh2660"><code>@​samarthsinh2660</code></a>
in <a
href="https://redirect.github.com/webpack/webpack/pull/20258">#20258</a>)</p>
</li>
<li>
<p>Fixed a bug where declaring a <code>module</code> variable in module
scope would conflict with the default <code>moduleArgument</code>. (by
<a href="https://github.com/xiaoxiaojx"><code>@​xiaoxiaojx</code></a> in
<a
href="https://redirect.github.com/webpack/webpack/pull/20265">#20265</a>)</p>
</li>
<li>
<p>Fix VirtualUrlPlugin to set resourceData.context for proper module
resolution. Previously, when context was not set, it would fallback to
the virtual scheme path (e.g., <code>virtual:routes</code>), which is
not a valid filesystem path, causing subsequent resolve operations to
fail. (by <a
href="https://github.com/xiaoxiaojx"><code>@​xiaoxiaojx</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20390">#20390</a>)</p>
</li>
<li>
<p>Fixed Worker self-import handling to support various URL patterns
(e.g., <code>import.meta.url</code>, <code>new
URL(import.meta.url)</code>, <code>new URL(import.meta.url,
import.meta.url)</code>, <code>new URL(&quot;./index.js&quot;,
import.meta.url)</code>). Workers that resolve to the same module are
now properly deduplicated, regardless of the URL syntax used. (by <a
href="https://github.com/xiaoxiaojx"><code>@​xiaoxiaojx</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20381">#20381</a>)</p>
</li>
<li>
<p>Reuse the same async entrypoint for the same Worker URL within a
module to avoid circular dependency warnings when multiple Workers
reference the same resource. (by <a
href="https://github.com/xiaoxiaojx"><code>@​xiaoxiaojx</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20345">#20345</a>)</p>
</li>
<li>
<p>Fixed a bug where a self-referencing dependency would have an unused
export name when imported inside a web worker. (by <a
href="https://github.com/samarthsinh2660"><code>@​samarthsinh2660</code></a>
in <a
href="https://redirect.github.com/webpack/webpack/pull/20251">#20251</a>)</p>
</li>
<li>
<p>Fix missing export generation when concatenated modules in different
chunks share the same runtime in module library bundles. (by <a
href="https://github.com/hai-x"><code>@​hai-x</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20346">#20346</a>)</p>
</li>
<li>
<p>Fixed <code>import.meta.env.xxx</code> behavior: when accessing a
non-existent property, it now returns empty object instead of full
object at runtime. (by <a
href="https://github.com/xiaoxiaojx"><code>@​xiaoxiaojx</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20289">#20289</a>)</p>
</li>
<li>
<p>Improved parsing error reporting by adding a link to the loader
documentation. (by <a
href="https://github.com/gaurav10gg"><code>@​gaurav10gg</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20244">#20244</a>)</p>
</li>
<li>
<p>Fix typescript types. (by <a
href="https://github.com/alexander-akait"><code>@​alexander-akait</code></a>
in <a
href="https://redirect.github.com/webpack/webpack/pull/20305">#20305</a>)</p>
</li>
<li>
<p>Add declaration for unused harmony import specifier. (by <a
href="https://github.com/hai-x"><code>@​hai-x</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20286">#20286</a>)</p>
</li>
<li>
<p>Fix compressibility of modules while retaining portability. (by <a
href="https://github.com/dmichon-msft"><code>@​dmichon-msft</code></a>
in <a
href="https://redirect.github.com/webpack/webpack/pull/20287">#20287</a>)</p>
</li>
<li>
<p>Optimize source map generation: only include <code>ignoreList</code>
property when it has content, avoiding empty arrays in source maps. (by
<a href="https://github.com/xiaoxiaojx"><code>@​xiaoxiaojx</code></a> in
<a
href="https://redirect.github.com/webpack/webpack/pull/20319">#20319</a>)</p>
</li>
<li>
<p>Preserve star exports for dependencies in ECMA module output. (by <a
href="https://github.com/hai-x"><code>@​hai-x</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20293">#20293</a>)</p>
</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/webpack/webpack/blob/main/CHANGELOG.md">webpack's
changelog</a>.</em></p>
<blockquote>
<h2>5.105.0</h2>
<h3>Minor Changes</h3>
<ul>
<li>
<p>Allow resolving worker module by export condition name when using
<code>new Worker()</code> (by <a
href="https://github.com/hai-x"><code>@​hai-x</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20353">#20353</a>)</p>
</li>
<li>
<p>Detect conditional imports to avoid compile-time linking errors for
non-existent exports. (by <a
href="https://github.com/hai-x"><code>@​hai-x</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20320">#20320</a>)</p>
</li>
<li>
<p>Added the <code>tsconfig</code> option for the <code>resolver</code>
options (replacement for <code>tsconfig-paths-webpack-plugin</code>).
Can be <code>false</code> (disabled), <code>true</code> (use the default
<code>tsconfig.json</code> file to search for it), a string path to
<code>tsconfig.json</code>, or an object with <code>configFile</code>
and <code>references</code> options. (by <a
href="https://github.com/alexander-akait"><code>@​alexander-akait</code></a>
in <a
href="https://redirect.github.com/webpack/webpack/pull/20400">#20400</a>)</p>
</li>
<li>
<p>Support <code>import.defer()</code> for context modules. (by <a
href="https://github.com/ahabhgk"><code>@​ahabhgk</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20399">#20399</a>)</p>
</li>
<li>
<p>Added support for array values ​​to the <code>devtool</code> option.
(by <a href="https://github.com/hai-x"><code>@​hai-x</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20191">#20191</a>)</p>
</li>
<li>
<p>Improve rendering node built-in modules for ECMA module output. (by
<a href="https://github.com/hai-x"><code>@​hai-x</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20255">#20255</a>)</p>
</li>
<li>
<p>Unknown import.meta properties are now determined at runtime instead
of being statically analyzed at compile time. (by <a
href="https://github.com/xiaoxiaojx"><code>@​xiaoxiaojx</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20312">#20312</a>)</p>
</li>
</ul>
<h3>Patch Changes</h3>
<ul>
<li>
<p>Fixed ESM default export handling for <code>.mjs</code> files in
Module Federation (by <a
href="https://github.com/y-okt"><code>@​y-okt</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20189">#20189</a>)</p>
</li>
<li>
<p>Optimized <code>import.meta.env</code> handling in destructuring
assignments by using cached stringified environment definitions. (by <a
href="https://github.com/xiaoxiaojx"><code>@​xiaoxiaojx</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20313">#20313</a>)</p>
</li>
<li>
<p>Respect the <code>stats.errorStack</code> option in stats output. (by
<a
href="https://github.com/samarthsinh2660"><code>@​samarthsinh2660</code></a>
in <a
href="https://redirect.github.com/webpack/webpack/pull/20258">#20258</a>)</p>
</li>
<li>
<p>Fixed a bug where declaring a <code>module</code> variable in module
scope would conflict with the default <code>moduleArgument</code>. (by
<a href="https://github.com/xiaoxiaojx"><code>@​xiaoxiaojx</code></a> in
<a
href="https://redirect.github.com/webpack/webpack/pull/20265">#20265</a>)</p>
</li>
<li>
<p>Fix VirtualUrlPlugin to set resourceData.context for proper module
resolution. Previously, when context was not set, it would fallback to
the virtual scheme path (e.g., <code>virtual:routes</code>), which is
not a valid filesystem path, causing subsequent resolve operations to
fail. (by <a
href="https://github.com/xiaoxiaojx"><code>@​xiaoxiaojx</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20390">#20390</a>)</p>
</li>
<li>
<p>Fixed Worker self-import handling to support various URL patterns
(e.g., <code>import.meta.url</code>, <code>new
URL(import.meta.url)</code>, <code>new URL(import.meta.url,
import.meta.url)</code>, <code>new URL(&quot;./index.js&quot;,
import.meta.url)</code>). Workers that resolve to the same module are
now properly deduplicated, regardless of the URL syntax used. (by <a
href="https://github.com/xiaoxiaojx"><code>@​xiaoxiaojx</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20381">#20381</a>)</p>
</li>
<li>
<p>Reuse the same async entrypoint for the same Worker URL within a
module to avoid circular dependency warnings when multiple Workers
reference the same resource. (by <a
href="https://github.com/xiaoxiaojx"><code>@​xiaoxiaojx</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20345">#20345</a>)</p>
</li>
<li>
<p>Fixed a bug where a self-referencing dependency would have an unused
export name when imported inside a web worker. (by <a
href="https://github.com/samarthsinh2660"><code>@​samarthsinh2660</code></a>
in <a
href="https://redirect.github.com/webpack/webpack/pull/20251">#20251</a>)</p>
</li>
<li>
<p>Fix missing export generation when concatenated modules in different
chunks share the same runtime in module library bundles. (by <a
href="https://github.com/hai-x"><code>@​hai-x</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20346">#20346</a>)</p>
</li>
<li>
<p>Fixed <code>import.meta.env.xxx</code> behavior: when accessing a
non-existent property, it now returns empty object instead of full
object at runtime. (by <a
href="https://github.com/xiaoxiaojx"><code>@​xiaoxiaojx</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20289">#20289</a>)</p>
</li>
<li>
<p>Improved parsing error reporting by adding a link to the loader
documentation. (by <a
href="https://github.com/gaurav10gg"><code>@​gaurav10gg</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20244">#20244</a>)</p>
</li>
<li>
<p>Fix typescript types. (by <a
href="https://github.com/alexander-akait"><code>@​alexander-akait</code></a>
in <a
href="https://redirect.github.com/webpack/webpack/pull/20305">#20305</a>)</p>
</li>
<li>
<p>Add declaration for unused harmony import specifier. (by <a
href="https://github.com/hai-x"><code>@​hai-x</code></a> in <a
href="https://redirect.github.com/webpack/webpack/pull/20286">#20286</a>)</p>
</li>
<li>
<p>Fix compressibility of modules while retaining portability. (by <a
href="https://github.com/dmichon-msft"><code>@​dmichon-msft</code></a>
in <a
href="https://redirect.github.com/webpack/webpack/pull/20287">#20287</a>)</p>
</li>
<li>
<p>Optimize source map generation: only include <code>ignoreList</code>
property when it has content, avoiding empty arrays in source maps. (by
<a href="https://github.com/xiaoxiaojx"><code>@​xiaoxiaojx</code></a> in
<a
href="https://redirect.github.com/webpack/webpack/pull/20319">#20319</a>)</p>
</li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/webpack/webpack/commit/1486f9aacca11d79dbb7ddbceed29b7e6df7a7ab"><code>1486f9a</code></a>
chore(release): new release</li>
<li><a
href="https://github.com/webpack/webpack/commit/1a517f665aae7b4d3d29c8b408d09488a21fbf94"><code>1a517f6</code></a>
feat: added the <code>tsconfig</code> option for the
<code>resolver</code> options (<a
href="https://redirect.github.com/webpack/webpack/issues/20400">#20400</a>)</li>
<li><a
href="https://github.com/webpack/webpack/commit/7b3b0f795df377a9d0073822a2d60c1390d03109"><code>7b3b0f7</code></a>
feat: support <code>import.defer()</code> for context modules</li>
<li><a
href="https://github.com/webpack/webpack/commit/c4a6a922de4af37a92d05c0ddc975b5348cfa9a1"><code>c4a6a92</code></a>
refactor: more types and increase types coverage</li>
<li><a
href="https://github.com/webpack/webpack/commit/5ecc58d722da7715ede7de59b97108dd715d1bfa"><code>5ecc58d</code></a>
feat: consider asset module as side-effect-free (<a
href="https://redirect.github.com/webpack/webpack/issues/20352">#20352</a>)</li>
<li><a
href="https://github.com/webpack/webpack/commit/cce0f6989888771ec279777ab8f8dce8e39198a0"><code>cce0f69</code></a>
test: avoid comma operator in BinaryMiddleware test (<a
href="https://redirect.github.com/webpack/webpack/issues/20398">#20398</a>)</li>
<li><a
href="https://github.com/webpack/webpack/commit/cd4793d50e8e1e519ecd07b76d9e5dc06357341e"><code>cd4793d</code></a>
feat: support import specifier guard (<a
href="https://redirect.github.com/webpack/webpack/issues/20320">#20320</a>)</li>
<li><a
href="https://github.com/webpack/webpack/commit/fe486552d060f6d2815a39a6bd0fb351d348658c"><code>fe48655</code></a>
docs: update examples (<a
href="https://redirect.github.com/webpack/webpack/issues/20397">#20397</a>)</li>
<li><a
href="https://github.com/webpack/webpack/commit/de107f8767a2a11759f8261ed1ac49bcddec34b6"><code>de107f8</code></a>
fix(VirtualUrlPlugin): set resourceData.context to avoid invalid
fallback (<a
href="https://redirect.github.com/webpack/webpack/issues/2">#2</a>...</li>
<li><a
href="https://github.com/webpack/webpack/commit/a656ab1fd1064ef8dd3eef1a2f3071fc176b948f"><code>a656ab1</code></a>
test: add self-import test case for dynamic import (<a
href="https://redirect.github.com/webpack/webpack/issues/20389">#20389</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/webpack/webpack/compare/v5.94.0...v5.105.0">compare
view</a></li>
</ul>
</details>
<details>
<summary>Maintainer changes</summary>
<p>This version was pushed to npm by [GitHub Actions](<a
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</details>
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---
 package-lock.json | 1014 ++++++++++++++++++++++++++++++---------------
 package.json      |    2 +-
 2 files changed, 690 insertions(+), 326 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 96e5097bb9c7..3b5a9c8991f1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -104,7 +104,7 @@
                 "typemoq": "^2.1.0",
                 "typescript": "~5.2",
                 "uuid": "^8.3.2",
-                "webpack": "^5.76.0",
+                "webpack": "^5.105.0",
                 "webpack-bundle-analyzer": "^4.5.0",
                 "webpack-cli": "^4.9.2",
                 "webpack-fix-default-import-plugin": "^1.0.3",
@@ -1265,9 +1265,9 @@
             }
         },
         "node_modules/@jridgewell/source-map": {
-            "version": "0.3.6",
-            "resolved": "https://registry.npmjs.org/@jridgewell/source-map/-/source-map-0.3.6.tgz",
-            "integrity": "sha512-1ZJTZebgqllO79ue2bm3rIGud/bOe0pP5BjSRCRxxYkEZS8STV7zN84UBbiYu7jy+eCKSnVIUgoWWE/tt+shMQ==",
+            "version": "0.3.11",
+            "resolved": "https://registry.npmjs.org/@jridgewell/source-map/-/source-map-0.3.11.tgz",
+            "integrity": "sha512-ZMp1V8ZFcPG5dIWnQLr3NSI1MiCU7UETdS/A0G8V/XWHvJv3ZsFqutJn1Y5RPmAPX6F3BiE397OqveU/9NCuIA==",
             "dev": true,
             "dependencies": {
                 "@jridgewell/gen-mapping": "^0.3.5",
@@ -1780,10 +1780,30 @@
                 "@types/node": "*"
             }
         },
+        "node_modules/@types/eslint": {
+            "version": "9.6.1",
+            "resolved": "https://registry.npmjs.org/@types/eslint/-/eslint-9.6.1.tgz",
+            "integrity": "sha512-FXx2pKgId/WyYo2jXw63kk7/+TY7u7AziEJxJAnSFzHlqTAS3Ync6SvgYAN/k4/PQpnnVuzoMuVnByKK2qp0ag==",
+            "dev": true,
+            "dependencies": {
+                "@types/estree": "*",
+                "@types/json-schema": "*"
+            }
+        },
+        "node_modules/@types/eslint-scope": {
+            "version": "3.7.7",
+            "resolved": "https://registry.npmjs.org/@types/eslint-scope/-/eslint-scope-3.7.7.tgz",
+            "integrity": "sha512-MzMFlSLBqNF2gcHWO0G1vP/YQyfvrxZ0bF+u7mzUdZ1/xK4A4sru+nraZz5i3iEIk1l1uyicaDVTB4QbbEkAYg==",
+            "dev": true,
+            "dependencies": {
+                "@types/eslint": "*",
+                "@types/estree": "*"
+            }
+        },
         "node_modules/@types/estree": {
-            "version": "1.0.5",
-            "resolved": "https://registry.npmjs.org/@types/estree/-/estree-1.0.5.tgz",
-            "integrity": "sha512-/kYRxGDLWzHOB7q+wtSUQlFrtcdUccpfy+X+9iMBpHK8QLLhx2wIPYuS5DYtR9Wa/YlZAbIovy7qVdB1Aq6Lyw==",
+            "version": "1.0.8",
+            "resolved": "https://registry.npmjs.org/@types/estree/-/estree-1.0.8.tgz",
+            "integrity": "sha512-dWHzHa2WqEXI/O1E9OjrocMTKJl2mSrEolh1Iomrv6U+JuNwaHXsXx9bLu5gG7BUWFIN0skIQJQ/L1rIex4X6w==",
             "dev": true
         },
         "node_modules/@types/fs-extra": {
@@ -2516,148 +2536,148 @@
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         },
         "node_modules/@webassemblyjs/ast": {
-            "version": "1.12.1",
-            "resolved": "https://registry.npmjs.org/@webassemblyjs/ast/-/ast-1.12.1.tgz",
-            "integrity": "sha512-EKfMUOPRRUTy5UII4qJDGPpqfwjOmZ5jeGFwid9mnoqIFK+e0vqoi1qH56JpmZSzEL53jKnNzScdmftJyG5xWg==",
+            "version": "1.14.1",
+            "resolved": "https://registry.npmjs.org/@webassemblyjs/ast/-/ast-1.14.1.tgz",
+            "integrity": "sha512-nuBEDgQfm1ccRp/8bCQrx1frohyufl4JlbMMZ4P1wpeOfDhF6FQkxZJ1b/e+PLwr6X1Nhw6OLme5usuBWYBvuQ==",
             "dev": true,
             "dependencies": {
-                "@webassemblyjs/helper-numbers": "1.11.6",
-                "@webassemblyjs/helper-wasm-bytecode": "1.11.6"
+                "@webassemblyjs/helper-numbers": "1.13.2",
+                "@webassemblyjs/helper-wasm-bytecode": "1.13.2"
             }
         },
         "node_modules/@webassemblyjs/floating-point-hex-parser": {
-            "version": "1.11.6",
-            "resolved": "https://registry.npmjs.org/@webassemblyjs/floating-point-hex-parser/-/floating-point-hex-parser-1.11.6.tgz",
-            "integrity": "sha512-ejAj9hfRJ2XMsNHk/v6Fu2dGS+i4UaXBXGemOfQ/JfQ6mdQg/WXtwleQRLLS4OvfDhv8rYnVwH27YJLMyYsxhw==",
+            "version": "1.13.2",
+            "resolved": "https://registry.npmjs.org/@webassemblyjs/floating-point-hex-parser/-/floating-point-hex-parser-1.13.2.tgz",
+            "integrity": "sha512-6oXyTOzbKxGH4steLbLNOu71Oj+C8Lg34n6CqRvqfS2O71BxY6ByfMDRhBytzknj9yGUPVJ1qIKhRlAwO1AovA==",
             "dev": true
         },
         "node_modules/@webassemblyjs/helper-api-error": {
-            "version": "1.11.6",
-            "resolved": "https://registry.npmjs.org/@webassemblyjs/helper-api-error/-/helper-api-error-1.11.6.tgz",
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+                    "version": "4.3.3",
+                    "resolved": "https://registry.npmjs.org/schema-utils/-/schema-utils-4.3.3.tgz",
+                    "integrity": "sha512-eflK8wEtyOE6+hsaRVPxvUKYCpRgzLqDTb8krvAsRIwOGlHoSgYLgBXoubGgLd2fT41/OUYdb48v4k4WWHQurA==",
+                    "dev": true,
+                    "requires": {
+                        "@types/json-schema": "^7.0.9",
+                        "ajv": "^8.9.0",
+                        "ajv-formats": "^2.1.1",
+                        "ajv-keywords": "^5.1.0"
+                    }
+                }
             }
         },
         "test-exclude": {
@@ -25839,13 +26160,13 @@
             }
         },
         "update-browserslist-db": {
-            "version": "1.1.0",
-            "resolved": "https://registry.npmjs.org/update-browserslist-db/-/update-browserslist-db-1.1.0.tgz",
-            "integrity": "sha512-EdRAaAyk2cUE1wOf2DkEhzxqOQvFOoRJFNS6NeyJ01Gp2beMRpBAINjM2iDXE3KCuKhwnvHIQCJm6ThL2Z+HzQ==",
+            "version": "1.2.3",
+            "resolved": "https://registry.npmjs.org/update-browserslist-db/-/update-browserslist-db-1.2.3.tgz",
+            "integrity": "sha512-Js0m9cx+qOgDxo0eMiFGEueWztz+d4+M3rGlmKPT+T4IS/jP4ylw3Nwpu6cpTTP8R1MAC1kF4VbdLt3ARf209w==",
             "dev": true,
             "requires": {
-                "escalade": "^3.1.2",
-                "picocolors": "^1.0.1"
+                "escalade": "^3.2.0",
+                "picocolors": "^1.1.1"
             }
         },
         "uri-js": {
@@ -26137,9 +26458,9 @@
             }
         },
         "watchpack": {
-            "version": "2.4.2",
-            "resolved": "https://registry.npmjs.org/watchpack/-/watchpack-2.4.2.tgz",
-            "integrity": "sha512-TnbFSbcOCcDgjZ4piURLCbJ3nJhznVh9kw6F6iokjiFPl8ONxe9A6nMDVXDiNbrSfLILs6vB07F7wLBrwPYzJw==",
+            "version": "2.5.1",
+            "resolved": "https://registry.npmjs.org/watchpack/-/watchpack-2.5.1.tgz",
+            "integrity": "sha512-Zn5uXdcFNIA1+1Ei5McRd+iRzfhENPCe7LeABkJtNulSxjma+l7ltNx55BWZkRlwRnpOgHqxnjyaDgJnNXnqzg==",
             "dev": true,
             "requires": {
                 "glob-to-regexp": "^0.4.1",
@@ -26147,34 +26468,77 @@
             }
         },
         "webpack": {
-            "version": "5.94.0",
-            "resolved": "https://registry.npmjs.org/webpack/-/webpack-5.94.0.tgz",
-            "integrity": "sha512-KcsGn50VT+06JH/iunZJedYGUJS5FGjow8wb9c0v5n1Om8O1g4L6LjtfxwlXIATopoQu+vOXXa7gYisWxCoPyg==",
-            "dev": true,
-            "requires": {
-                "@types/estree": "^1.0.5",
-                "@webassemblyjs/ast": "^1.12.1",
-                "@webassemblyjs/wasm-edit": "^1.12.1",
-                "@webassemblyjs/wasm-parser": "^1.12.1",
-                "acorn": "^8.7.1",
-                "acorn-import-attributes": "^1.9.5",
-                "browserslist": "^4.21.10",
+            "version": "5.105.0",
+            "resolved": "https://registry.npmjs.org/webpack/-/webpack-5.105.0.tgz",
+            "integrity": "sha512-gX/dMkRQc7QOMzgTe6KsYFM7DxeIONQSui1s0n/0xht36HvrgbxtM1xBlgx596NbpHuQU8P7QpKwrZYwUX48nw==",
+            "dev": true,
+            "requires": {
+                "@types/eslint-scope": "^3.7.7",
+                "@types/estree": "^1.0.8",
+                "@types/json-schema": "^7.0.15",
+                "@webassemblyjs/ast": "^1.14.1",
+                "@webassemblyjs/wasm-edit": "^1.14.1",
+                "@webassemblyjs/wasm-parser": "^1.14.1",
+                "acorn": "^8.15.0",
+                "acorn-import-phases": "^1.0.3",
+                "browserslist": "^4.28.1",
                 "chrome-trace-event": "^1.0.2",
-                "enhanced-resolve": "^5.17.1",
-                "es-module-lexer": "^1.2.1",
+                "enhanced-resolve": "^5.19.0",
+                "es-module-lexer": "^2.0.0",
                 "eslint-scope": "5.1.1",
                 "events": "^3.2.0",
                 "glob-to-regexp": "^0.4.1",
                 "graceful-fs": "^4.2.11",
                 "json-parse-even-better-errors": "^2.3.1",
-                "loader-runner": "^4.2.0",
+                "loader-runner": "^4.3.1",
                 "mime-types": "^2.1.27",
                 "neo-async": "^2.6.2",
-                "schema-utils": "^3.2.0",
-                "tapable": "^2.1.1",
-                "terser-webpack-plugin": "^5.3.10",
-                "watchpack": "^2.4.1",
-                "webpack-sources": "^3.2.3"
+                "schema-utils": "^4.3.3",
+                "tapable": "^2.3.0",
+                "terser-webpack-plugin": "^5.3.16",
+                "watchpack": "^2.5.1",
+                "webpack-sources": "^3.3.3"
+            },
+            "dependencies": {
+                "ajv": {
+                    "version": "8.17.1",
+                    "resolved": "https://registry.npmjs.org/ajv/-/ajv-8.17.1.tgz",
+                    "integrity": "sha512-B/gBuNg5SiMTrPkC+A2+cW0RszwxYmn6VYxB/inlBStS5nx6xHIt/ehKRhIMhqusl7a8LjQoZnjCs5vhwxOQ1g==",
+                    "dev": true,
+                    "requires": {
+                        "fast-deep-equal": "^3.1.3",
+                        "fast-uri": "^3.0.1",
+                        "json-schema-traverse": "^1.0.0",
+                        "require-from-string": "^2.0.2"
+                    }
+                },
+                "ajv-keywords": {
+                    "version": "5.1.0",
+                    "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-5.1.0.tgz",
+                    "integrity": "sha512-YCS/JNFAUyr5vAuhk1DWm1CBxRHW9LbJ2ozWeemrIqpbsqKjHVxYPyi5GC0rjZIT5JxJ3virVTS8wk4i/Z+krw==",
+                    "dev": true,
+                    "requires": {
+                        "fast-deep-equal": "^3.1.3"
+                    }
+                },
+                "json-schema-traverse": {
+                    "version": "1.0.0",
+                    "resolved": "https://registry.npmjs.org/json-schema-traverse/-/json-schema-traverse-1.0.0.tgz",
+                    "integrity": "sha512-NM8/P9n3XjXhIZn1lLhkFaACTOURQXjWhV4BA/RnOv8xvgqtqpAX9IO4mRQxSx1Rlo4tqzeqb0sOlruaOy3dug==",
+                    "dev": true
+                },
+                "schema-utils": {
+                    "version": "4.3.3",
+                    "resolved": "https://registry.npmjs.org/schema-utils/-/schema-utils-4.3.3.tgz",
+                    "integrity": "sha512-eflK8wEtyOE6+hsaRVPxvUKYCpRgzLqDTb8krvAsRIwOGlHoSgYLgBXoubGgLd2fT41/OUYdb48v4k4WWHQurA==",
+                    "dev": true,
+                    "requires": {
+                        "@types/json-schema": "^7.0.9",
+                        "ajv": "^8.9.0",
+                        "ajv-formats": "^2.1.1",
+                        "ajv-keywords": "^5.1.0"
+                    }
+                }
             }
         },
         "webpack-bundle-analyzer": {
@@ -26324,9 +26688,9 @@
             "requires": {}
         },
         "webpack-sources": {
-            "version": "3.2.3",
-            "resolved": "https://registry.npmjs.org/webpack-sources/-/webpack-sources-3.2.3.tgz",
-            "integrity": "sha512-/DyMEOrDgLKKIG0fmvtz+4dUX/3Ghozwgm6iPp8KRhvn+eQf9+Q7GWxVNMk3+uCPWfdXYC4ExGBckIXdFEfH1w==",
+            "version": "3.3.3",
+            "resolved": "https://registry.npmjs.org/webpack-sources/-/webpack-sources-3.3.3.tgz",
+            "integrity": "sha512-yd1RBzSGanHkitROoPFd6qsrxt+oFhg/129YzheDGqeustzX0vTZJZsSsQjVQC4yzBQ56K55XU8gaNCtIzOnTg==",
             "dev": true
         },
         "which": {
diff --git a/package.json b/package.json
index d2d28bee1c4c..043e14d9f341 100644
--- a/package.json
+++ b/package.json
@@ -1800,7 +1800,7 @@
         "typemoq": "^2.1.0",
         "typescript": "~5.2",
         "uuid": "^8.3.2",
-        "webpack": "^5.76.0",
+        "webpack": "^5.105.0",
         "webpack-bundle-analyzer": "^4.5.0",
         "webpack-cli": "^4.9.2",
         "webpack-fix-default-import-plugin": "^1.0.3",

From d06be726c794611d19069d3416b2979b3015649d Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 2 Mar 2026 14:49:50 -0800
Subject: [PATCH 149/178] Bump minimatch from 5.1.0 to 5.1.8 (#25823)

Bumps [minimatch](https://github.com/isaacs/minimatch) from 5.1.0 to
5.1.8.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/isaacs/minimatch/commit/e92ae291a1e512f2d7ae13d6797b02315f68a40c"><code>e92ae29</code></a>
5.1.8</li>
<li><a
href="https://github.com/isaacs/minimatch/commit/79e44472e457ca43a3f2acebe19288a436db28c4"><code>79e4447</code></a>
limit recursion for **, improve perf considerably</li>
<li><a
href="https://github.com/isaacs/minimatch/commit/85ec0ff1bb34f2b200990140f4f9bdbaa8fb99aa"><code>85ec0ff</code></a>
lockfile update</li>
<li><a
href="https://github.com/isaacs/minimatch/commit/647146e67c1f47287a4b8d834e28c671c712d639"><code>647146e</code></a>
lock node version to 14</li>
<li><a
href="https://github.com/isaacs/minimatch/commit/85646c8f2739fdb0bc3b744606117a9d63f97c74"><code>85646c8</code></a>
5.1.7</li>
<li><a
href="https://github.com/isaacs/minimatch/commit/977c2d874aff7d416bf91c92b6aef7ab1f926f9b"><code>977c2d8</code></a>
update CI matrix and actions</li>
<li><a
href="https://github.com/isaacs/minimatch/commit/421ad1288bac5ef85e0f1b47155d85a69d753b79"><code>421ad12</code></a>
update test expectations for coalesced consecutive stars</li>
<li><a
href="https://github.com/isaacs/minimatch/commit/febe85d40f16c3c266c89f89f032f64a009f1377"><code>febe85d</code></a>
coalesce consecutive non-globstar * characters</li>
<li><a
href="https://github.com/isaacs/minimatch/commit/3e216b9cf09528b8cbb90c5ecc01d054326d8f85"><code>3e216b9</code></a>
5.1.6</li>
<li><a
href="https://github.com/isaacs/minimatch/commit/4d0b7f5434bb44792c9ea6b0bdff635f8f50f6d6"><code>4d0b7f5</code></a>
Detect leading dots in extglob subpatterns</li>
<li>Additional commits viewable in <a
href="https://github.com/isaacs/minimatch/compare/v5.1.0...v5.1.8">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=minimatch&package-manager=npm_and_yarn&previous-version=5.1.0&new-version=5.1.8)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

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<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
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- `@dependabot show <dependency name> ignore conditions` will show all
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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 package-lock.json | 36 +++++++-----------------------------
 package.json      |  2 +-
 2 files changed, 8 insertions(+), 30 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 3b5a9c8991f1..2f55d050f4d2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -18,7 +18,7 @@
                 "inversify": "^6.0.2",
                 "jsonc-parser": "^3.0.0",
                 "lodash": "^4.17.23",
-                "minimatch": "^5.0.1",
+                "minimatch": "^5.1.8",
                 "named-js-regexp": "^1.3.3",
                 "node-stream-zip": "^1.6.0",
                 "reflect-metadata": "^0.2.2",
@@ -10002,9 +10002,9 @@
             "dev": true
         },
         "node_modules/minimatch": {
-            "version": "5.1.0",
-            "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-5.1.0.tgz",
-            "integrity": "sha512-9TPBGGak4nHfGZsPBohm9AWg6NoT7QTCehS3BIJABslyZbzxfV78QM2Y6+i741OPZIafFAaiiEMh5OyIrJPgtg==",
+            "version": "5.1.8",
+            "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-5.1.8.tgz",
+            "integrity": "sha512-7RN35vit8DeBclkofOVmBY0eDAZZQd1HzmukRdSyz95CRh8FT54eqnbj0krQr3mrHR6sfRyYkyhwBWjoV5uqlQ==",
             "dependencies": {
                 "brace-expansion": "^2.0.1"
             },
@@ -10343,19 +10343,6 @@
                 "url": "https://github.com/sponsors/sindresorhus"
             }
         },
-        "node_modules/mocha/node_modules/minimatch": {
-            "version": "5.1.6",
-            "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-5.1.6.tgz",
-            "integrity": "sha512-lKwV/1brpG6mBUFHtb7NUmtABCb2WZZmm2wNiOA5hAb8VdCS4B3dtMWyvcoViccwAW/COERjXLt0zP1zXUN26g==",
-            "dev": true,
-            "license": "ISC",
-            "dependencies": {
-                "brace-expansion": "^2.0.1"
-            },
-            "engines": {
-                "node": ">=10"
-            }
-        },
         "node_modules/mocha/node_modules/ms": {
             "version": "2.1.3",
             "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
@@ -22982,9 +22969,9 @@
             "dev": true
         },
         "minimatch": {
-            "version": "5.1.0",
-            "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-5.1.0.tgz",
-            "integrity": "sha512-9TPBGGak4nHfGZsPBohm9AWg6NoT7QTCehS3BIJABslyZbzxfV78QM2Y6+i741OPZIafFAaiiEMh5OyIrJPgtg==",
+            "version": "5.1.8",
+            "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-5.1.8.tgz",
+            "integrity": "sha512-7RN35vit8DeBclkofOVmBY0eDAZZQd1HzmukRdSyz95CRh8FT54eqnbj0krQr3mrHR6sfRyYkyhwBWjoV5uqlQ==",
             "requires": {
                 "brace-expansion": "^2.0.1"
             },
@@ -23188,15 +23175,6 @@
                         "p-locate": "^5.0.0"
                     }
                 },
-                "minimatch": {
-                    "version": "5.1.6",
-                    "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-5.1.6.tgz",
-                    "integrity": "sha512-lKwV/1brpG6mBUFHtb7NUmtABCb2WZZmm2wNiOA5hAb8VdCS4B3dtMWyvcoViccwAW/COERjXLt0zP1zXUN26g==",
-                    "dev": true,
-                    "requires": {
-                        "brace-expansion": "^2.0.1"
-                    }
-                },
                 "ms": {
                     "version": "2.1.3",
                     "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
diff --git a/package.json b/package.json
index 043e14d9f341..847926dccc64 100644
--- a/package.json
+++ b/package.json
@@ -1714,7 +1714,7 @@
         "inversify": "^6.0.2",
         "jsonc-parser": "^3.0.0",
         "lodash": "^4.17.23",
-        "minimatch": "^5.0.1",
+        "minimatch": "^5.1.8",
         "named-js-regexp": "^1.3.3",
         "node-stream-zip": "^1.6.0",
         "reflect-metadata": "^0.2.2",

From 8a61a8736d60d2de309736c0598ffa8c15516617 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 2 Mar 2026 14:50:29 -0800
Subject: [PATCH 150/178] Bump tomli from 2.3.0 to 2.4.0 (#25726)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps [tomli](https://github.com/hukkin/tomli) from 2.3.0 to 2.4.0.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/hukkin/tomli/blob/master/CHANGELOG.md">tomli's
changelog</a>.</em></p>
<blockquote>
<h2>2.4.0</h2>
<ul>
<li>Added
<ul>
<li>TOML v1.1.0 compatibility</li>
<li>Binary wheels for Windows arm64</li>
</ul>
</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/hukkin/tomli/commit/a678e6fdeffa89bd28e4ecc148b926a4e1bbbc7b"><code>a678e6f</code></a>
Bump version: 2.3.0 → 2.4.0</li>
<li><a
href="https://github.com/hukkin/tomli/commit/b8a1358cd4f3932b910333e0179270093596ce64"><code>b8a1358</code></a>
Tests: remove now needless &quot;TOML
compliance&quot;-&gt;&quot;burntsushi&quot; format conversion</li>
<li><a
href="https://github.com/hukkin/tomli/commit/497937545351e0b4c8afe2299d5ddfb4a7e050cc"><code>4979375</code></a>
Update GitHub actions</li>
<li><a
href="https://github.com/hukkin/tomli/commit/f890dd1719da0e0f4e83cac39218ba2ded61fa94"><code>f890dd1</code></a>
Update pre-commit hooks</li>
<li><a
href="https://github.com/hukkin/tomli/commit/d9c65c3379b8b92dfab52c8c694605b1aea5a65d"><code>d9c65c3</code></a>
Add 2.4.0 change log</li>
<li><a
href="https://github.com/hukkin/tomli/commit/0efe49d88c2d6ee38e3ad21bfcf64249968fe6c4"><code>0efe49d</code></a>
Update README for v2.4.0</li>
<li><a
href="https://github.com/hukkin/tomli/commit/9eb2125ef49071e673d42e383b5221a268665193"><code>9eb2125</code></a>
TOML 1.1: Make seconds optional in Date-Time and Time (<a
href="https://redirect.github.com/hukkin/tomli/issues/203">#203</a>)</li>
<li><a
href="https://github.com/hukkin/tomli/commit/12314bde5b89a8bdc32de7403a2a4cf786187bbc"><code>12314bd</code></a>
TOML 1.1: Add \xHH Unicode escape code to basic strings (<a
href="https://redirect.github.com/hukkin/tomli/issues/202">#202</a>)</li>
<li><a
href="https://github.com/hukkin/tomli/commit/2a2aa62f1bc71b89b74d41dd2ab67b5dd24bc129"><code>2a2aa62</code></a>
TOML 1.1: Allow newlines and trailing comma in inline tables (<a
href="https://redirect.github.com/hukkin/tomli/issues/200">#200</a>)</li>
<li><a
href="https://github.com/hukkin/tomli/commit/38297f82cd0ef067f1afd2ffb8dfa73b65c398da"><code>38297f8</code></a>
Xfail on tests for TOML 1.1 features not yet supported</li>
<li>Additional commits viewable in <a
href="https://github.com/hukkin/tomli/compare/2.3.0...2.4.0">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=tomli&package-manager=pip&previous-version=2.3.0&new-version=2.4.0)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
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---
 requirements.txt | 91 +++++++++++++++++++++++++-----------------------
 1 file changed, 48 insertions(+), 43 deletions(-)

diff --git a/requirements.txt b/requirements.txt
index ae747359d4e2..e9e99ec59363 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,49 +12,54 @@ packaging==25.0 \
     --hash=sha256:29572ef2b1f17581046b3a2227d5c611fb25ec70ca1ba8554b24b0e69331a484 \
     --hash=sha256:d443872c98d677bf60f6a1f2f8c1cb748e8fe762d2bf9d3148b5599295b0fc4f
     # via -r requirements.in
-tomli==2.3.0 \
-    --hash=sha256:00b5f5d95bbfc7d12f91ad8c593a1659b6387b43f054104cda404be6bda62456 \
-    --hash=sha256:0a154a9ae14bfcf5d8917a59b51ffd5a3ac1fd149b71b47a3a104ca4edcfa845 \
-    --hash=sha256:0c95ca56fbe89e065c6ead5b593ee64b84a26fca063b5d71a1122bf26e533999 \
-    --hash=sha256:0eea8cc5c5e9f89c9b90c4896a8deefc74f518db5927d0e0e8d4a80953d774d0 \
-    --hash=sha256:1cb4ed918939151a03f33d4242ccd0aa5f11b3547d0cf30f7c74a408a5b99878 \
-    --hash=sha256:4021923f97266babc6ccab9f5068642a0095faa0a51a246a6a02fccbb3514eaf \
-    --hash=sha256:4c2ef0244c75aba9355561272009d934953817c49f47d768070c3c94355c2aa3 \
-    --hash=sha256:4dc4ce8483a5d429ab602f111a93a6ab1ed425eae3122032db7e9acf449451be \
-    --hash=sha256:4f195fe57ecceac95a66a75ac24d9d5fbc98ef0962e09b2eddec5d39375aae52 \
-    --hash=sha256:5192f562738228945d7b13d4930baffda67b69425a7f0da96d360b0a3888136b \
-    --hash=sha256:5e01decd096b1530d97d5d85cb4dff4af2d8347bd35686654a004f8dea20fc67 \
-    --hash=sha256:64be704a875d2a59753d80ee8a533c3fe183e3f06807ff7dc2232938ccb01549 \
-    --hash=sha256:70a251f8d4ba2d9ac2542eecf008b3c8a9fc5c3f9f02c56a9d7952612be2fdba \
-    --hash=sha256:73ee0b47d4dad1c5e996e3cd33b8a76a50167ae5f96a2607cbe8cc773506ab22 \
-    --hash=sha256:74bf8464ff93e413514fefd2be591c3b0b23231a77f901db1eb30d6f712fc42c \
-    --hash=sha256:792262b94d5d0a466afb5bc63c7daa9d75520110971ee269152083270998316f \
-    --hash=sha256:7b0882799624980785240ab732537fcfc372601015c00f7fc367c55308c186f6 \
-    --hash=sha256:883b1c0d6398a6a9d29b508c331fa56adbcdff647f6ace4dfca0f50e90dfd0ba \
-    --hash=sha256:88bd15eb972f3664f5ed4b57c1634a97153b4bac4479dcb6a495f41921eb7f45 \
-    --hash=sha256:8a35dd0e643bb2610f156cca8db95d213a90015c11fee76c946aa62b7ae7e02f \
-    --hash=sha256:940d56ee0410fa17ee1f12b817b37a4d4e4dc4d27340863cc67236c74f582e77 \
-    --hash=sha256:97d5eec30149fd3294270e889b4234023f2c69747e555a27bd708828353ab606 \
-    --hash=sha256:a0e285d2649b78c0d9027570d4da3425bdb49830a6156121360b3f8511ea3441 \
-    --hash=sha256:a1f7f282fe248311650081faafa5f4732bdbfef5d45fe3f2e702fbc6f2d496e0 \
-    --hash=sha256:a4ea38c40145a357d513bffad0ed869f13c1773716cf71ccaa83b0fa0cc4e42f \
-    --hash=sha256:a56212bdcce682e56b0aaf79e869ba5d15a6163f88d5451cbde388d48b13f530 \
-    --hash=sha256:ad805ea85eda330dbad64c7ea7a4556259665bdf9d2672f5dccc740eb9d3ca05 \
-    --hash=sha256:b273fcbd7fc64dc3600c098e39136522650c49bca95df2d11cf3b626422392c8 \
-    --hash=sha256:b5870b50c9db823c595983571d1296a6ff3e1b88f734a4c8f6fc6188397de005 \
-    --hash=sha256:b74a0e59ec5d15127acdabd75ea17726ac4c5178ae51b85bfe39c4f8a278e879 \
-    --hash=sha256:be71c93a63d738597996be9528f4abe628d1adf5e6eb11607bc8fe1a510b5dae \
-    --hash=sha256:c22a8bf253bacc0cf11f35ad9808b6cb75ada2631c2d97c971122583b129afbc \
-    --hash=sha256:c4665508bcbac83a31ff8ab08f424b665200c0e1e645d2bd9ab3d3e557b6185b \
-    --hash=sha256:c5f3ffd1e098dfc032d4d3af5c0ac64f6d286d98bc148698356847b80fa4de1b \
-    --hash=sha256:cebc6fe843e0733ee827a282aca4999b596241195f43b4cc371d64fc6639da9e \
-    --hash=sha256:d1381caf13ab9f300e30dd8feadb3de072aeb86f1d34a8569453ff32a7dea4bf \
-    --hash=sha256:d7d86942e56ded512a594786a5ba0a5e521d02529b3826e7761a05138341a2ac \
-    --hash=sha256:e31d432427dcbf4d86958c184b9bfd1e96b5b71f8eb17e6d02531f434fd335b8 \
-    --hash=sha256:e95b1af3c5b07d9e643909b5abbec77cd9f1217e6d0bca72b0234736b9fb1f1b \
-    --hash=sha256:f85209946d1fe94416debbb88d00eb92ce9cd5266775424ff81bc959e001acaf \
-    --hash=sha256:feb0dacc61170ed7ab602d3d972a58f14ee3ee60494292d384649a3dc38ef463 \
-    --hash=sha256:ff72b71b5d10d22ecb084d345fc26f42b5143c5533db5e2eaba7d2d335358876
+tomli==2.4.0 \
+    --hash=sha256:0408e3de5ec77cc7f81960c362543cbbd91ef883e3138e81b729fc3eea5b9729 \
+    --hash=sha256:0dc56fef0e2c1c470aeac5b6ca8cc7b640bb93e92d9803ddaf9ea03e198f5b0b \
+    --hash=sha256:0e0fe8a0b8312acf3a88077a0802565cb09ee34107813bba1c7cd591fa6cfc8d \
+    --hash=sha256:0f2e3955efea4d1cfbcb87bc321e00dc08d2bcb737fd1d5e398af111d86db5df \
+    --hash=sha256:133e93646ec4300d651839d382d63edff11d8978be23da4cc106f5a18b7d0576 \
+    --hash=sha256:1b168f2731796b045128c45982d3a4874057626da0e2ef1fdd722848b741361d \
+    --hash=sha256:1c8a885b370751837c029ef9bc014f27d80840e48bac415f3412e6593bbc18c1 \
+    --hash=sha256:1f776e7d669ebceb01dee46484485f43a4048746235e683bcdffacdf1fb4785a \
+    --hash=sha256:1fb2945cbe303b1419e2706e711b7113da57b7db31ee378d08712d678a34e51e \
+    --hash=sha256:20cedb4ee43278bc4f2fee6cb50daec836959aadaf948db5172e776dd3d993fc \
+    --hash=sha256:20ffd184fb1df76a66e34bd1b36b4a4641bd2b82954befa32fe8163e79f1a702 \
+    --hash=sha256:26ab906a1eb794cd4e103691daa23d95c6919cc2fa9160000ac02370cc9dd3f6 \
+    --hash=sha256:2add28aacc7425117ff6364fe9e06a183bb0251b03f986df0e78e974047571fd \
+    --hash=sha256:2b1e3b80e1d5e52e40e9b924ec43d81570f0e7d09d11081b797bc4692765a3d4 \
+    --hash=sha256:31d556d079d72db7c584c0627ff3a24c5d3fb4f730221d3444f3efb1b2514776 \
+    --hash=sha256:36b9d05b51e65b254ea6c2585b59d2c4cb91c8a3d91d0ed0f17591a29aaea54a \
+    --hash=sha256:39b0b5d1b6dd03684b3fb276407ebed7090bbec989fa55838c98560c01113b66 \
+    --hash=sha256:3cf226acb51d8f1c394c1b310e0e0e61fecdd7adcb78d01e294ac297dd2e7f87 \
+    --hash=sha256:3d895d56bd3f82ddd6faaff993c275efc2ff38e52322ea264122d72729dca2b2 \
+    --hash=sha256:413540dce94673591859c4c6f794dfeaa845e98bf35d72ed59636f869ef9f86f \
+    --hash=sha256:43e685b9b2341681907759cf3a04e14d7104b3580f808cfde1dfdb60ada85475 \
+    --hash=sha256:4cbcb367d44a1f0c2be408758b43e1ffb5308abe0ea222897d6bfc8e8281ef2f \
+    --hash=sha256:551e321c6ba03b55676970b47cb1b73f14a0a4dce6a3e1a9458fd6d921d72e95 \
+    --hash=sha256:5572e41282d5268eb09a697c89a7bee84fae66511f87533a6f88bd2f7b652da9 \
+    --hash=sha256:5aa48d7c2356055feef06a43611fc401a07337d5b006be13a30f6c58f869e3c3 \
+    --hash=sha256:5b5807f3999fb66776dbce568cc9a828544244a8eb84b84b9bafc080c99597b9 \
+    --hash=sha256:5e3f639a7a8f10069d0e15408c0b96a2a828cfdec6fca05296ebcdcc28ca7c76 \
+    --hash=sha256:685306e2cc7da35be4ee914fd34ab801a6acacb061b6a7abca922aaf9ad368da \
+    --hash=sha256:75c2f8bbddf170e8effc98f5e9084a8751f8174ea6ccf4fca5398436e0320bc8 \
+    --hash=sha256:7b438885858efd5be02a9a133caf5812b8776ee0c969fea02c45e8e3f296ba51 \
+    --hash=sha256:7d49c66a7d5e56ac959cb6fc583aff0651094ec071ba9ad43df785abc2320d86 \
+    --hash=sha256:7d6d9a4aee98fac3eab4952ad1d73aee87359452d1c086b5ceb43ed02ddb16b8 \
+    --hash=sha256:84d081fbc252d1b6a982e1870660e7330fb8f90f676f6e78b052ad4e64714bf0 \
+    --hash=sha256:8768715ffc41f0008abe25d808c20c3d990f42b6e2e58305d5da280ae7d1fa3b \
+    --hash=sha256:920b1de295e72887bafa3ad9f7a792f811847d57ea6b1215154030cf131f16b1 \
+    --hash=sha256:9a08144fa4cba33db5255f9b74f0b89888622109bd2776148f2597447f92a94e \
+    --hash=sha256:a26d7ff68dfdb9f87a016ecfd1e1c2bacbe3108f4e0f8bcd2228ef9a766c787d \
+    --hash=sha256:aa89c3f6c277dd275d8e243ad24f3b5e701491a860d5121f2cdd399fbb31fc9c \
+    --hash=sha256:b5ef256a3fd497d4973c11bf142e9ed78b150d36f5773f1ca6088c230ffc5867 \
+    --hash=sha256:b6c78bdf37764092d369722d9946cb65b8767bfa4110f902a1b2542d8d173c8a \
+    --hash=sha256:bbb1b10aa643d973366dc2cb1ad94f99c1726a02343d43cbc011edbfac579e7c \
+    --hash=sha256:c084ad935abe686bd9c898e62a02a19abfc9760b5a79bc29644463eaf2840cb0 \
+    --hash=sha256:c73add4bb52a206fd0c0723432db123c0c75c280cbd67174dd9d2db228ebb1b4 \
+    --hash=sha256:cae9c19ed12d4e8f3ebf46d1a75090e4c0dc16271c5bce1c833ac168f08fb614 \
+    --hash=sha256:d20b797a5c1ad80c516e41bc1fb0443ddb5006e9aaa7bda2d71978346aeb9132 \
+    --hash=sha256:d3d1654e11d724760cdb37a3d7691f0be9db5fbdaef59c9f532aabf87006dbaa \
+    --hash=sha256:d878f2a6707cc9d53a1be1414bbb419e629c3d6e67f69230217bb663e76b5087
     # via -r requirements.in
 typing-extensions==4.15.0 \
     --hash=sha256:0cea48d173cc12fa28ecabc3b837ea3cf6f38c6d1136f85cbaaf598984861466 \

From d7cf7fec53937b8a79898430c3c7c2707b3fbced Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 2 Mar 2026 14:50:48 -0800
Subject: [PATCH 151/178] Bump packaging from 25.0 to 26.0 (#25747)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps [packaging](https://github.com/pypa/packaging) from 25.0 to 26.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/pypa/packaging/releases">packaging's
releases</a>.</em></p>
<blockquote>
<h2>26.0</h2>
<p>Read about the performance improvements here: <a
href="https://iscinumpy.dev/post/packaging-faster">https://iscinumpy.dev/post/packaging-faster</a>.</p>
<h2>What's Changed</h2>
<p>Features:</p>
<ul>
<li>PEP 751: support pylock by <a
href="https://github.com/sbidoul"><code>@​sbidoul</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/900">pypa/packaging#900</a></li>
<li>PEP 794: import name metadata by <a
href="https://github.com/brettcannon"><code>@​brettcannon</code></a> in
<a
href="https://redirect.github.com/pypa/packaging/pull/948">pypa/packaging#948</a></li>
<li>Support writing metadata by <a
href="https://github.com/henryiii"><code>@​henryiii</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/846">pypa/packaging#846</a></li>
<li>Support <code>__replace__</code> for <code>Version</code> by <a
href="https://github.com/henryiii"><code>@​henryiii</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1003">pypa/packaging#1003</a></li>
<li>Support positional pattern matching for <code>Version</code> and
<code>Specifier</code> by <a
href="https://github.com/henryiii"><code>@​henryiii</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1004">pypa/packaging#1004</a></li>
</ul>
<p>Behavior adaptations:</p>
<ul>
<li>PEP 440 handling of prereleases for <code>Specifier.contains</code>,
<code>SpecifierSet.contains</code>, and <code>SpecifierSet.filter</code>
by <a
href="https://github.com/notatallshaw"><code>@​notatallshaw</code></a>
in <a
href="https://redirect.github.com/pypa/packaging/pull/897">pypa/packaging#897</a></li>
<li>Handle PEP 440 edge case in <code>SpecifierSet.filter</code> by <a
href="https://github.com/notatallshaw"><code>@​notatallshaw</code></a>
in <a
href="https://redirect.github.com/pypa/packaging/pull/942">pypa/packaging#942</a></li>
<li>Adjust arbitrary equality intersection preservation in
<code>SpecifierSet</code> by <a
href="https://github.com/notatallshaw"><code>@​notatallshaw</code></a>
in <a
href="https://redirect.github.com/pypa/packaging/pull/951">pypa/packaging#951</a></li>
<li>Return <code>False</code> instead of raising for
<code>.contains</code> with invalid version by <a
href="https://github.com/Liam-DeVoe"><code>@​Liam-DeVoe</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/932">pypa/packaging#932</a></li>
<li>Support arbitrary equality on arbitrary strings for
<code>Specifier</code> and <code>SpecifierSet</code>'s
<code>filter</code> and <code>contains</code> method. by <a
href="https://github.com/notatallshaw"><code>@​notatallshaw</code></a>
in <a
href="https://redirect.github.com/pypa/packaging/pull/954">pypa/packaging#954</a></li>
<li>Only try to parse as <code>Version</code> on certain marker keys,
return <code>False</code> on unequal ordered comparsions by <a
href="https://github.com/JP-Ellis"><code>@​JP-Ellis</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/939">pypa/packaging#939</a></li>
</ul>
<p>Fixes:</p>
<ul>
<li>Update <code>_hash</code> when unpickling <code>Tag()</code> by <a
href="https://github.com/dholth"><code>@​dholth</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/860">pypa/packaging#860</a></li>
<li>Correct comment and simplify implicit prerelease handling in
<code>Specifier.prereleases</code> by <a
href="https://github.com/notatallshaw"><code>@​notatallshaw</code></a>
in <a
href="https://redirect.github.com/pypa/packaging/pull/896">pypa/packaging#896</a></li>
<li>Use explicit <code>_GLibCVersion</code> <code>NamedTuple</code> in
<code>_manylinux</code> by <a
href="https://github.com/cthoyt"><code>@​cthoyt</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/868">pypa/packaging#868</a></li>
<li>Detect invalid license expressions containing <code>()</code> by <a
href="https://github.com/bwoodsend"><code>@​bwoodsend</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/879">pypa/packaging#879</a></li>
<li>Correct regex for metadata <code>'name'</code> format by <a
href="https://github.com/di"><code>@​di</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/925">pypa/packaging#925</a></li>
<li>Improve the message around expecting a semicolon by <a
href="https://github.com/pradyunsg"><code>@​pradyunsg</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/833">pypa/packaging#833</a></li>
<li>Support nested parens in license expressions by <a
href="https://github.com/Liam-DeVoe"><code>@​Liam-DeVoe</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/931">pypa/packaging#931</a></li>
<li>Add space before at symbol in <code>Requirements</code> string by <a
href="https://github.com/henryiii"><code>@​henryiii</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/953">pypa/packaging#953</a></li>
<li>A root logger use found by ruff LOG, use <code>packaging</code>
logger instead by <a
href="https://github.com/henryiii"><code>@​henryiii</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/965">pypa/packaging#965</a></li>
<li>Better support for subclassing <code>Marker</code> and
<code>Requirement</code> by <a
href="https://github.com/henryiii"><code>@​henryiii</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1022">pypa/packaging#1022</a></li>
<li>Normalize all extras, not just if it comes first by <a
href="https://github.com/henryiii"><code>@​henryiii</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1024">pypa/packaging#1024</a></li>
<li>Don't produce a broken repr if <code>Marker</code> fails to
construct by <a
href="https://github.com/henryiii"><code>@​henryiii</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1033">pypa/packaging#1033</a></li>
</ul>
<p>Performance:</p>
<ul>
<li>Avoid recompiling regexes in the tokenizer for a 3x speedup by <a
href="https://github.com/hauntsaninja"><code>@​hauntsaninja</code></a>
in <a
href="https://redirect.github.com/pypa/packaging/pull/1019">pypa/packaging#1019</a></li>
<li>Improve performance in <code>_manylinux.py</code> by <a
href="https://github.com/cthoyt"><code>@​cthoyt</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/869">pypa/packaging#869</a></li>
<li>Minor cleanups to <code>Version</code> by <a
href="https://github.com/bearomorphism"><code>@​bearomorphism</code></a>
in <a
href="https://redirect.github.com/pypa/packaging/pull/913">pypa/packaging#913</a></li>
<li>Skip redundant creation of <code>Version</code>s in specifier
comparison by <a
href="https://github.com/notatallshaw"><code>@​notatallshaw</code></a>
in <a
href="https://redirect.github.com/pypa/packaging/pull/986">pypa/packaging#986</a></li>
<li>Cache <code>Specifier</code>'s Version by <a
href="https://github.com/notatallshaw"><code>@​notatallshaw</code></a>
in <a
href="https://redirect.github.com/pypa/packaging/pull/985">pypa/packaging#985</a></li>
<li>Make <code>Version</code> a little faster by <a
href="https://github.com/henryiii"><code>@​henryiii</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/987">pypa/packaging#987</a></li>
<li>Minor <code>Version</code> regex cleanup by <a
href="https://github.com/henryiii"><code>@​henryiii</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/990">pypa/packaging#990</a></li>
<li>Faster regex on Python 3.11.5+ by <a
href="https://github.com/henryiii"><code>@​henryiii</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/988">pypa/packaging#988</a>
and <a
href="https://redirect.github.com/pypa/packaging/pull/1055">pypa/packaging#1055</a></li>
<li>Lazily calculate <code>_key</code> in <code>Version</code> by <a
href="https://github.com/notatallshaw"><code>@​notatallshaw</code></a>
in <a
href="https://redirect.github.com/pypa/packaging/pull/989">pypa/packaging#989</a>
and regression for <code>packaging_legacy</code> fixed by <a
href="https://github.com/henryiii"><code>@​henryiii</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1048">pypa/packaging#1048</a></li>
<li>Faster <code>canonicalize_version</code> by <a
href="https://github.com/henryiii"><code>@​henryiii</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/993">pypa/packaging#993</a></li>
<li>Use <code>fullmatch</code> in a couple more places by <a
href="https://github.com/henryiii"><code>@​henryiii</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/992">pypa/packaging#992</a></li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/pypa/packaging/blob/main/CHANGELOG.rst">packaging's
changelog</a>.</em></p>
<blockquote>
<p>26.0 - 2026-01-20</p>
<pre><code>
Features:
<ul>
<li>PEP 751: support pylock (:pull:<code>900</code>)</li>
<li>PEP 794: import name metadata (:pull:<code>948</code>)</li>
<li>Support for writing metadata to a file (:pull:<code>846</code>)</li>
<li>Support <code>__replace__</code> on Version
(:pull:<code>1003</code>)</li>
<li>Support positional pattern matching for <code>Version</code> and
<code>SpecifierSet</code> (:pull:<code>1004</code>)</li>
</ul>
<p>Behavior adaptations:</p>
<ul>
<li>PEP 440 handling of prereleases for <code>Specifier.contains</code>,
<code>SpecifierSet.contains</code>, and <code>SpecifierSet.filter</code>
(:pull:<code>897</code>)</li>
<li>Handle PEP 440 edge case in <code>SpecifierSet.filter</code>
(:pull:<code>942</code>)</li>
<li>Adjust arbitrary equality intersection preservation in
<code>SpecifierSet</code> (:pull:<code>951</code>)</li>
<li>Return <code>False</code> instead of raising for
<code>.contains</code> with invalid version
(:pull:<code>932</code>)</li>
<li>Support arbitrary equality on arbitrary strings for
<code>Specifier</code> and <code>SpecifierSet</code>'s
<code>filter</code> and <code>contains</code> method.
(:pull:<code>954</code>)</li>
<li>Only try to parse as <code>Version</code> on certain marker keys,
return <code>False</code> on unequal ordered comparisons
(:pull:<code>939</code>)</li>
</ul>
<p>Fixes:</p>
<ul>
<li>Update <code>_hash</code> when unpickling <code>Tag()</code>
(:pull:<code>860</code>)</li>
<li>Correct comment and simplify implicit prerelease handling in
<code>Specifier.prereleases</code> (:pull:<code>896</code>)</li>
<li>Use explicit <code>_GLibCVersion</code> <code>NamedTuple</code> in
<code>_manylinux</code> (:pull:<code>868</code>)</li>
<li>Detect invalid license expressions containing <code>()</code>
(:pull:<code>879</code>)</li>
<li>Correct regex for metadata <code>'name'</code> format
(:pull:<code>925</code>)</li>
<li>Improve the message around expecting a semicolon
(:pull:<code>833</code>)</li>
<li>Support nested parens in license expressions
(:pull:<code>931</code>)</li>
<li>Add space before at symbol in <code>Requirements</code> string
(:pull:<code>953</code>)</li>
<li>A root logger use found, use a <code>packaging</code> logger instead
(:pull:<code>965</code>)</li>
<li>Better support for subclassing <code>Marker</code> and
<code>Requirement</code> (:pull:<code>1022</code>)</li>
<li>Normalize all extras, not just if it comes first
(:pull:<code>1024</code>)</li>
<li>Don't produce a broken repr if <code>Marker</code> fails to
construct (:pull:<code>1033</code>)</li>
</ul>
<p>Performance:</p>
<ul>
<li>Avoid recompiling regexes in the tokenizer for a 3x speedup
(:pull:<code>1019</code>)</li>
<li>Improve performance in <code>_manylinux.py</code>
(:pull:<code>869</code>)</li>
<li>Minor cleanups to <code>Version</code> (:pull:<code>913</code>)</li>
<li>Skip redundant creation of <code>Version</code>'s in specifier
comparison (:pull:<code>986</code>)</li>
<li>Cache the <code>Specifier</code>'s <code>Version</code>
(:pull:<code>985</code>)</li>
<li>Make <code>Version</code> a little faster
(:pull:<code>987</code>)</li>
<li>Minor <code>Version</code> regex cleanup
(:pull:<code>990</code>)</li>
<li>Faster regex on Python 3.11.5+ for <code>Version</code>
(:pull:<code>988</code>, :pull:<code>1055</code>)</li>
<li>Lazily calculate <code>_key</code> in <code>Version</code>
(:pull:<code>989</code>, :pull:<code>1048</code>)</li>
<li>Faster <code>canonicalize_version</code>
(:pull:<code>993</code>)</li>
<li>Use <code>re.fullmatch</code> in a couple more places
(:pull:<code>992</code>, :pull:<code>1029</code>)</li>
<li>Use <code>map</code> instead of generator
(:pull:<code>996</code>)</li>
<li>Deprecate <code>._version</code> (<code>_Version</code>, a
<code>NamedTuple</code>) (:pull:<code>995</code>,
:pull:<code>1062</code>)<br />
&lt;/tr&gt;&lt;/table&gt;<br />
</code></pre></li>
</ul>
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/pypa/packaging/commit/3b77a26f5a27473ad3b08194d773f325d018a2d0"><code>3b77a26</code></a>
Bump for release</li>
<li><a
href="https://github.com/pypa/packaging/commit/31371cce593d2bde0dd8c436ecfb7d53cb91cfb6"><code>31371cc</code></a>
docs: prepare for 26.0 final (<a
href="https://redirect.github.com/pypa/packaging/issues/1063">#1063</a>)</li>
<li><a
href="https://github.com/pypa/packaging/commit/9627a8821f09e4c55cd6e9daadb617b67c4741c2"><code>9627a88</code></a>
perf: dual replace (<a
href="https://redirect.github.com/pypa/packaging/issues/1064">#1064</a>)</li>
<li><a
href="https://github.com/pypa/packaging/commit/d5398b8bc19f3fad7b035ceb83023caf06d6e2da"><code>d5398b8</code></a>
fix: restore ._version as a compat shim (<a
href="https://redirect.github.com/pypa/packaging/issues/1062">#1062</a>)</li>
<li><a
href="https://github.com/pypa/packaging/commit/3a7b600a126d237b2ad3cd7e25d2cb5c176276af"><code>3a7b600</code></a>
Bump for development</li>
<li><a
href="https://github.com/pypa/packaging/commit/d4eefdccf992e963c48011875301d93df6a7f2cc"><code>d4eefdc</code></a>
Bump for release</li>
<li><a
href="https://github.com/pypa/packaging/commit/46189124fb43d8989d370902c80ab156eb83a45d"><code>4618912</code></a>
docs: prepare for 26.0rc3 (<a
href="https://redirect.github.com/pypa/packaging/issues/1060">#1060</a>)</li>
<li><a
href="https://github.com/pypa/packaging/commit/0cf1b41b4b321ae08cad7d3e49cfaff5578fe813"><code>0cf1b41</code></a>
ci: test on first public release of CPythons (<a
href="https://redirect.github.com/pypa/packaging/issues/1056">#1056</a>)</li>
<li><a
href="https://github.com/pypa/packaging/commit/716beb1c0a5d7a398bf57fbd80bc2501811e616b"><code>716beb1</code></a>
perf: 10% faster stripping zeros (<a
href="https://redirect.github.com/pypa/packaging/issues/1058">#1058</a>)</li>
<li><a
href="https://github.com/pypa/packaging/commit/350a2306700b738f487f251efa278f532b263dee"><code>350a230</code></a>
fix: support CPython 3.11.0-3.11.4 and older PyPy3.11 (<a
href="https://redirect.github.com/pypa/packaging/issues/1055">#1055</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/pypa/packaging/compare/25.0...26.0">compare
view</a></li>
</ul>
</details>
<br />


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---
 requirements.txt | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/requirements.txt b/requirements.txt
index e9e99ec59363..68850210d58c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,9 +8,9 @@ microvenv==2025.0 \
     --hash=sha256:568155ec18af01c89f270d35d123ab803b09672b480c3702d15fd69e9cc5bd1e \
     --hash=sha256:8a2568a8390a4ffb5af2f05e7642454e03b887e582d192b6316326974eab5d0f
     # via -r requirements.in
-packaging==25.0 \
-    --hash=sha256:29572ef2b1f17581046b3a2227d5c611fb25ec70ca1ba8554b24b0e69331a484 \
-    --hash=sha256:d443872c98d677bf60f6a1f2f8c1cb748e8fe762d2bf9d3148b5599295b0fc4f
+packaging==26.0 \
+    --hash=sha256:00243ae351a257117b6a241061796684b084ed1c516a08c48a3f7e147a9d80b4 \
+    --hash=sha256:b36f1fef9334a5588b4166f8bcd26a14e521f2b55e6b9de3aaa80d3ff7a37529
     # via -r requirements.in
 tomli==2.4.0 \
     --hash=sha256:0408e3de5ec77cc7f81960c362543cbbd91ef883e3138e81b729fc3eea5b9729 \

From 3b9c6e9bf87ee0cd00731012e75f3bf59fc19e62 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 2 Mar 2026 15:10:55 -0800
Subject: [PATCH 152/178] Bump qs from 6.14.1 to 6.14.2 (#25796)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps [qs](https://github.com/ljharb/qs) from 6.14.1 to 6.14.2.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/ljharb/qs/blob/main/CHANGELOG.md">qs's
changelog</a>.</em></p>
<blockquote>
<h2><strong>6.14.2</strong></h2>
<ul>
<li>[Fix] <code>parse</code>: mark overflow objects for indexed notation
exceeding <code>arrayLimit</code> (<a
href="https://redirect.github.com/ljharb/qs/issues/546">#546</a>)</li>
<li>[Fix] <code>arrayLimit</code> means max count, not max index, in
<code>combine</code>/<code>merge</code>/<code>parseArrayValue</code></li>
<li>[Fix] <code>parse</code>: throw on <code>arrayLimit</code> exceeded
with indexed notation when <code>throwOnLimitExceeded</code> is true (<a
href="https://redirect.github.com/ljharb/qs/issues/529">#529</a>)</li>
<li>[Fix] <code>parse</code>: enforce <code>arrayLimit</code> on
<code>comma</code>-parsed values</li>
<li>[Fix] <code>parse</code>: fix error message to reflect arrayLimit as
max index; remove extraneous comments (<a
href="https://redirect.github.com/ljharb/qs/issues/545">#545</a>)</li>
<li>[Robustness] avoid <code>.push</code>, use <code>void</code></li>
<li>[readme] document that <code>addQueryPrefix</code> does not add
<code>?</code> to empty output (<a
href="https://redirect.github.com/ljharb/qs/issues/418">#418</a>)</li>
<li>[readme] clarify <code>parseArrays</code> and
<code>arrayLimit</code> documentation (<a
href="https://redirect.github.com/ljharb/qs/issues/543">#543</a>)</li>
<li>[readme] replace runkit CI badge with shields.io check-runs
badge</li>
<li>[meta] fix changelog typo (<code>arrayLength</code> →
<code>arrayLimit</code>)</li>
<li>[actions] fix rebase workflow permissions</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/ljharb/qs/commit/bdcf0c7f82387c18ac8fabfccd2f440645cef47b"><code>bdcf0c7</code></a>
v6.14.2</li>
<li><a
href="https://github.com/ljharb/qs/commit/294db90c812ddbe7d7a35d5687c505fd21a2d6a2"><code>294db90</code></a>
[readme] document that <code>addQueryPrefix</code> does not add
<code>?</code> to empty output</li>
<li><a
href="https://github.com/ljharb/qs/commit/5c308e5516c270a78caa6f278465914090f91ec6"><code>5c308e5</code></a>
[readme] clarify <code>parseArrays</code> and <code>arrayLimit</code>
documentation</li>
<li><a
href="https://github.com/ljharb/qs/commit/6addf8cf738d529c54d91f6f3ffb6c1be91bbfdc"><code>6addf8c</code></a>
[Fix] <code>parse</code>: mark overflow objects for indexed notation
exceeding <code>arrayLimit</code></li>
<li><a
href="https://github.com/ljharb/qs/commit/cfc108f662326d6ab540f3545ef0b832baf83cdf"><code>cfc108f</code></a>
[Fix] <code>arrayLimit</code> means max count, not max index, in
<code>combine</code>/<code>merge</code>/`pars...</li>
<li><a
href="https://github.com/ljharb/qs/commit/febb64442a80e49200211fa38d3c96b58024ac77"><code>febb644</code></a>
[Fix] <code>parse</code>: throw on <code>arrayLimit</code> exceeded with
indexed notation when `thr...</li>
<li><a
href="https://github.com/ljharb/qs/commit/f6a7abff1f13d644db9b05fe4f2c98ada6bf8482"><code>f6a7abf</code></a>
[Fix] <code>parse</code>: enforce <code>arrayLimit</code> on
<code>comma</code>-parsed values</li>
<li><a
href="https://github.com/ljharb/qs/commit/fbc5206c25b4d1851cea683f02c10756c521d15a"><code>fbc5206</code></a>
[Fix] <code>parse</code>: fix error message to reflect arrayLimit as max
index; remove e...</li>
<li><a
href="https://github.com/ljharb/qs/commit/1b9a8b4e78c6aff4c22fa559107227f02fd0216a"><code>1b9a8b4</code></a>
[actions] fix rebase workflow permissions</li>
<li><a
href="https://github.com/ljharb/qs/commit/2a35775614e0fb46ac8a3060201a32a7c23a7fda"><code>2a35775</code></a>
[meta] fix changelog typo (<code>arrayLength</code> →
<code>arrayLimit</code>)</li>
<li>Additional commits viewable in <a
href="https://github.com/ljharb/qs/compare/v6.14.1...v6.14.2">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
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---
 package-lock.json | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 2f55d050f4d2..bab844f91162 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11884,9 +11884,9 @@
             }
         },
         "node_modules/qs": {
-            "version": "6.14.1",
-            "resolved": "https://registry.npmjs.org/qs/-/qs-6.14.1.tgz",
-            "integrity": "sha512-4EK3+xJl8Ts67nLYNwqw/dsFVnCf+qR7RgXSK9jEEm9unao3njwMDdmsdvoKBKHzxd7tCYz5e5M+SnMjdtXGQQ==",
+            "version": "6.15.0",
+            "resolved": "https://registry.npmjs.org/qs/-/qs-6.15.0.tgz",
+            "integrity": "sha512-mAZTtNCeetKMH+pSjrb76NAM8V9a05I9aBZOHztWy/UqcJdQYNsf59vrRKWnojAT9Y+GbIvoTBC++CPHqpDBhQ==",
             "dev": true,
             "dependencies": {
                 "side-channel": "^1.1.0"
@@ -24381,9 +24381,9 @@
             "dev": true
         },
         "qs": {
-            "version": "6.14.1",
-            "resolved": "https://registry.npmjs.org/qs/-/qs-6.14.1.tgz",
-            "integrity": "sha512-4EK3+xJl8Ts67nLYNwqw/dsFVnCf+qR7RgXSK9jEEm9unao3njwMDdmsdvoKBKHzxd7tCYz5e5M+SnMjdtXGQQ==",
+            "version": "6.15.0",
+            "resolved": "https://registry.npmjs.org/qs/-/qs-6.15.0.tgz",
+            "integrity": "sha512-mAZTtNCeetKMH+pSjrb76NAM8V9a05I9aBZOHztWy/UqcJdQYNsf59vrRKWnojAT9Y+GbIvoTBC++CPHqpDBhQ==",
             "dev": true,
             "requires": {
                 "side-channel": "^1.1.0"

From aab1c364b3a8a34f9f1a1547d760d8f3e6a5de22 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Mon, 2 Mar 2026 21:05:39 -0800
Subject: [PATCH 153/178] Add environment discovery logging and messages when
 using Python Environments extension (#25830)

should help users find that the python environments extension is
installed and may be the item causing problems for those who don't know
we are moving to the envs extension for handling discovery
---
 .../diagnostics/checks/pythonInterpreter.ts   | 11 ++++++--
 src/client/common/utils/localize.ts           | 18 +++++++++++++
 src/client/envExt/api.internal.ts             | 21 ++++++++++++---
 src/client/envExt/envExtApi.ts                | 26 ++++++++++++++++---
 4 files changed, 67 insertions(+), 9 deletions(-)

diff --git a/src/client/application/diagnostics/checks/pythonInterpreter.ts b/src/client/application/diagnostics/checks/pythonInterpreter.ts
index 31da53e75357..9167e232a417 100644
--- a/src/client/application/diagnostics/checks/pythonInterpreter.ts
+++ b/src/client/application/diagnostics/checks/pythonInterpreter.ts
@@ -20,7 +20,7 @@ import {
     IDiagnosticHandlerService,
     IDiagnosticMessageOnCloseHandler,
 } from '../types';
-import { Common } from '../../../common/utils/localize';
+import { Common, Interpreters } from '../../../common/utils/localize';
 import { Commands } from '../../../common/constants';
 import { ICommandManager, IWorkspaceService } from '../../../common/application/types';
 import { sendTelemetryEvent } from '../../../telemetry';
@@ -30,11 +30,12 @@ import { cache } from '../../../common/utils/decorators';
 import { noop } from '../../../common/utils/misc';
 import { getEnvironmentVariable, getOSType, OSType } from '../../../common/utils/platform';
 import { IFileSystem } from '../../../common/platform/types';
-import { traceError } from '../../../logging';
+import { traceError, traceWarn } from '../../../logging';
 import { getExecutable } from '../../../common/process/internal/python';
 import { getSearchPathEnvVarNames } from '../../../common/utils/exec';
 import { IProcessServiceFactory } from '../../../common/process/types';
 import { normCasePath } from '../../../common/platform/fs-paths';
+import { useEnvExtension } from '../../../envExt/api.internal';
 
 const messages = {
     [DiagnosticCodes.NoPythonInterpretersDiagnostic]: l10n.t(
@@ -144,6 +145,9 @@ export class InvalidPythonInterpreterService extends BaseDiagnosticsService
         const isInterpreterSetToDefault = interpreterPathService.get(resource) === 'python';
 
         if (!hasInterpreters && isInterpreterSetToDefault) {
+            if (useEnvExtension()) {
+                traceWarn(Interpreters.envExtDiscoveryNoEnvironments);
+            }
             return [
                 new InvalidPythonInterpreterDiagnostic(
                     DiagnosticCodes.NoPythonInterpretersDiagnostic,
@@ -156,6 +160,9 @@ export class InvalidPythonInterpreterService extends BaseDiagnosticsService
 
         const currentInterpreter = await interpreterService.getActiveInterpreter(resource);
         if (!currentInterpreter) {
+            if (useEnvExtension()) {
+                traceWarn(Interpreters.envExtNoActiveEnvironment);
+            }
             return [
                 new InvalidPythonInterpreterDiagnostic(
                     DiagnosticCodes.InvalidPythonInterpreterDiagnostic,
diff --git a/src/client/common/utils/localize.ts b/src/client/common/utils/localize.ts
index d108dfddb54b..7b7560c74e05 100644
--- a/src/client/common/utils/localize.ts
+++ b/src/client/common/utils/localize.ts
@@ -191,6 +191,24 @@ export namespace Interpreters {
     export const installingPython = l10n.t('Installing Python into Environment...');
     export const discovering = l10n.t('Discovering Python Interpreters');
     export const refreshing = l10n.t('Refreshing Python Interpreters');
+    export const envExtDiscoveryAttribution = l10n.t(
+        'Environment discovery is managed by the Python Environments extension (ms-python.vscode-python-envs). Check the "Python Environments" output channel for environment-specific logs.',
+    );
+    export const envExtDiscoveryFailed = l10n.t(
+        'Environment discovery failed. Check the "Python Environments" output channel for details. The Python Environments extension (ms-python.vscode-python-envs) manages environment discovery.',
+    );
+    export const envExtDiscoverySlow = l10n.t(
+        'Environment discovery is taking longer than expected. Check the "Python Environments" output channel for progress. The Python Environments extension (ms-python.vscode-python-envs) manages environment discovery.',
+    );
+    export const envExtActivationFailed = l10n.t(
+        'Failed to activate the Python Environments extension (ms-python.vscode-python-envs), which is required for environment discovery. Please ensure it is installed and enabled.',
+    );
+    export const envExtDiscoveryNoEnvironments = l10n.t(
+        'Environment discovery completed but no Python environments were found. Check the "Python Environments" output channel for details.',
+    );
+    export const envExtNoActiveEnvironment = l10n.t(
+        'No Python environment is set for this resource. Check the "Python Environments" output channel for details, or select an interpreter.',
+    );
     export const condaInheritEnvMessage = l10n.t(
         'We noticed you\'re using a conda environment. If you are experiencing issues with this environment in the integrated terminal, we recommend that you let the Python extension change "terminal.integrated.inheritEnv" to false in your user settings. [Learn more](https://aka.ms/AA66i8f).',
     );
diff --git a/src/client/envExt/api.internal.ts b/src/client/envExt/api.internal.ts
index 07bc58ffc11e..5acdd5bba8e3 100644
--- a/src/client/envExt/api.internal.ts
+++ b/src/client/envExt/api.internal.ts
@@ -14,6 +14,8 @@ import {
 } from './types';
 import { executeCommand } from '../common/vscodeApis/commandApis';
 import { getConfiguration } from '../common/vscodeApis/workspaceApis';
+import { traceError, traceLog } from '../logging';
+import { Interpreters } from '../common/utils/localize';
 
 export const ENVS_EXTENSION_ID = 'ms-python.vscode-python-envs';
 
@@ -22,7 +24,8 @@ export function useEnvExtension(): boolean {
     if (_useExt !== undefined) {
         return _useExt;
     }
-    const inExpSetting = getConfiguration('python').get<boolean>('useEnvironmentsExtension', false);
+    const config = getConfiguration('python');
+    const inExpSetting = config?.get<boolean>('useEnvironmentsExtension', false) ?? false;
     // If extension is installed and in experiment, then use it.
     _useExt = !!getExtension(ENVS_EXTENSION_ID) && inExpSetting;
     return _useExt;
@@ -46,12 +49,20 @@ export async function getEnvExtApi(): Promise<PythonEnvironmentApi> {
     }
     const extension = getExtension(ENVS_EXTENSION_ID);
     if (!extension) {
+        traceError(Interpreters.envExtActivationFailed);
         throw new Error('Python Environments extension not found.');
     }
     if (!extension?.isActive) {
-        await extension.activate();
+        try {
+            await extension.activate();
+        } catch (ex) {
+            traceError(Interpreters.envExtActivationFailed, ex);
+            throw ex;
+        }
     }
 
+    traceLog(Interpreters.envExtDiscoveryAttribution);
+
     _extApi = extension.exports as PythonEnvironmentApi;
     _extApi.onDidChangeEnvironment((e) => {
         onDidChangeEnvironmentEnvExtEmitter.fire(e);
@@ -70,7 +81,11 @@ export async function runInBackground(
 
 export async function getEnvironment(scope: GetEnvironmentScope): Promise<PythonEnvironment | undefined> {
     const envExtApi = await getEnvExtApi();
-    return envExtApi.getEnvironment(scope);
+    const env = await envExtApi.getEnvironment(scope);
+    if (!env) {
+        traceLog(Interpreters.envExtNoActiveEnvironment);
+    }
+    return env;
 }
 
 export async function resolveEnvironment(pythonPath: string): Promise<PythonEnvironment | undefined> {
diff --git a/src/client/envExt/envExtApi.ts b/src/client/envExt/envExtApi.ts
index 598899b7d248..34f42f0d6954 100644
--- a/src/client/envExt/envExtApi.ts
+++ b/src/client/envExt/envExtApi.ts
@@ -17,7 +17,7 @@ import { PythonEnvCollectionChangedEvent } from '../pythonEnvironments/base/watc
 import { getEnvExtApi } from './api.internal';
 import { createDeferred, Deferred } from '../common/utils/async';
 import { StopWatch } from '../common/utils/stopWatch';
-import { traceLog } from '../logging';
+import { traceError, traceLog, traceWarn } from '../logging';
 import {
     DidChangeEnvironmentsEventArgs,
     EnvironmentChangeKind,
@@ -27,6 +27,7 @@ import {
 import { FileChangeType } from '../common/platform/fileSystemWatcher';
 import { Architecture, isWindows } from '../common/utils/platform';
 import { parseVersion } from '../pythonEnvironments/base/info/pythonVersion';
+import { Interpreters } from '../common/utils/localize';
 
 function getKind(pythonEnv: PythonEnvironment): PythonEnvKind {
     if (pythonEnv.envId.managerId.toLowerCase().endsWith('system')) {
@@ -242,13 +243,23 @@ class EnvExtApis implements IDiscoveryAPI, Disposable {
         this._onProgress.fire({ stage: this.refreshState });
         this._refreshPromise = createDeferred();
 
+        const SLOW_DISCOVERY_THRESHOLD_MS = 25_000;
+        const slowDiscoveryTimer = setTimeout(() => {
+            traceWarn(Interpreters.envExtDiscoverySlow);
+        }, SLOW_DISCOVERY_THRESHOLD_MS);
+
         setImmediate(async () => {
             try {
                 await this.envExtApi.refreshEnvironments(undefined);
+                if (this._envs.length === 0) {
+                    traceWarn(Interpreters.envExtDiscoveryNoEnvironments);
+                }
                 this._refreshPromise?.resolve();
             } catch (error) {
+                traceError(Interpreters.envExtDiscoveryFailed, error);
                 this._refreshPromise?.reject(error);
             } finally {
+                clearTimeout(slowDiscoveryTimer);
                 traceLog(`Native locator: Refresh finished in ${stopwatch.elapsedTime} ms`);
                 this.refreshState = ProgressReportStage.discoveryFinished;
                 this._refreshPromise = undefined;
@@ -297,9 +308,16 @@ class EnvExtApis implements IDiscoveryAPI, Disposable {
         if (envPath === undefined) {
             return undefined;
         }
-        const pythonEnv = await this.envExtApi.resolveEnvironment(Uri.file(envPath));
-        if (pythonEnv) {
-            return this.addEnv(pythonEnv);
+        try {
+            const pythonEnv = await this.envExtApi.resolveEnvironment(Uri.file(envPath));
+            if (pythonEnv) {
+                return this.addEnv(pythonEnv);
+            }
+        } catch (error) {
+            traceError(
+                `Failed to resolve environment "${envPath}" via the Python Environments extension (ms-python.vscode-python-envs). Check the "Python Environments" output channel for details.`,
+                error,
+            );
         }
         return undefined;
     }

From bec2bbd6975e3d052b4a9a71e620c2242f64ddda Mon Sep 17 00:00:00 2001
From: Copilot <198982749+Copilot@users.noreply.github.com>
Date: Tue, 3 Mar 2026 18:20:34 +0000
Subject: [PATCH 154/178] Run npm audit fix (non-breaking) (#25832)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Applies `npm audit fix` (no `--force`) to resolve 5 of 26 reported
vulnerabilities. Only `package-lock.json` is modified — semver ranges in
`package.json` are unchanged.

## Packages updated

| Package | Before | After | CVE/Advisory |
|---|---|---|---|
| `cipher-base` | 1.0.4 | 1.0.7 |
[GHSA-cpq7-6gpm-g9rc](https://github.com/advisories/GHSA-cpq7-6gpm-g9rc)
— **critical**, missing type checks |
| `ajv` | 6.12.6 / 8.17.1 | 6.14.0 / 8.18.0 |
[GHSA-2g4f-4pwh-qvx6](https://github.com/advisories/GHSA-2g4f-4pwh-qvx6)
— ReDoS via `$data` |
| `bn.js` | 4.11.8 / 5.2.1 | 4.12.3 / 5.2.3 |
[GHSA-378v-28hj-76wf](https://github.com/advisories/GHSA-378v-28hj-76wf)
— infinite loop |
| `glob` | 10.4.5 | 10.5.0 |
[GHSA-5j98-mcp5-4vw2](https://github.com/advisories/GHSA-5j98-mcp5-4vw2)
— CLI command injection |
| `minimatch` (3.x / 9.x) | 3.1.2 / 9.0.x | 3.1.5 / 9.0.9 |
[GHSA-3ppc-4f35-3m26](https://github.com/advisories/GHSA-3ppc-4f35-3m26)
— ReDoS |

## Remaining vulnerabilities (21)

All require `--force` and involve breaking changes (e.g. mocha
downgrade, `copy-webpack-plugin` major bump,
`node-polyfill-webpack-plugin` major bump). Not addressed here per the
constraint of no forced updates.

<!-- START COPILOT ORIGINAL PROMPT -->



<details>

<summary>Original prompt</summary>

> Run npm audit fix. Do not use force flag.


</details>



<!-- START COPILOT CODING AGENT SUFFIX -->

Created from [VS
Code](https://code.visualstudio.com/docs/copilot/copilot-coding-agent).

<!-- START COPILOT CODING AGENT TIPS -->
---

💬 We'd love your input! Share your thoughts on Copilot coding agent in
our [2 minute survey](https://gh.io/copilot-coding-agent-survey).

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: rzhao271 <7199958+rzhao271@users.noreply.github.com>
---
 package-lock.json | 996 ++++++++++++++++++++++++++--------------------
 1 file changed, 554 insertions(+), 442 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index bab844f91162..e015ad836067 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -945,9 +945,9 @@
             }
         },
         "node_modules/@eslint/eslintrc/node_modules/minimatch": {
-            "version": "3.1.2",
-            "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz",
-            "integrity": "sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==",
+            "version": "3.1.5",
+            "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.5.tgz",
+            "integrity": "sha512-VgjWUsnnT6n+NUk6eZq77zeFdpW2LWDzP6zFGrCbHXiYNul5Dzqk2HHQ5uFH2DNW5Xbp8+jVzaeNt94ssEEl4w==",
             "dev": true,
             "license": "ISC",
             "dependencies": {
@@ -1043,9 +1043,9 @@
             }
         },
         "node_modules/@humanwhocodes/config-array/node_modules/minimatch": {
-            "version": "3.1.2",
-            "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz",
-            "integrity": "sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==",
+            "version": "3.1.5",
+            "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.5.tgz",
+            "integrity": "sha512-VgjWUsnnT6n+NUk6eZq77zeFdpW2LWDzP6zFGrCbHXiYNul5Dzqk2HHQ5uFH2DNW5Xbp8+jVzaeNt94ssEEl4w==",
             "dev": true,
             "license": "ISC",
             "dependencies": {
@@ -2524,10 +2524,11 @@
             }
         },
         "node_modules/@vscode/vsce/node_modules/minimatch": {
-            "version": "3.1.2",
-            "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz",
-            "integrity": "sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==",
+            "version": "3.1.5",
+            "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.5.tgz",
+            "integrity": "sha512-VgjWUsnnT6n+NUk6eZq77zeFdpW2LWDzP6zFGrCbHXiYNul5Dzqk2HHQ5uFH2DNW5Xbp8+jVzaeNt94ssEEl4w==",
             "dev": true,
+            "license": "ISC",
             "dependencies": {
                 "brace-expansion": "^1.1.7"
             },
@@ -2820,10 +2821,11 @@
             }
         },
         "node_modules/ajv": {
-            "version": "6.12.6",
-            "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
-            "integrity": "sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==",
+            "version": "6.14.0",
+            "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.14.0.tgz",
+            "integrity": "sha512-IWrosm/yrn43eiKqkfkHis7QioDleaXQHdDVPKg0FSwwd/DuvyX79TZnFOnYpB7dcsFAMmtFztZuXPDvSePkFw==",
             "dev": true,
+            "license": "MIT",
             "dependencies": {
                 "fast-deep-equal": "^3.1.1",
                 "fast-json-stable-stringify": "^2.0.0",
@@ -2853,10 +2855,11 @@
             }
         },
         "node_modules/ajv-formats/node_modules/ajv": {
-            "version": "8.17.1",
-            "resolved": "https://registry.npmjs.org/ajv/-/ajv-8.17.1.tgz",
-            "integrity": "sha512-B/gBuNg5SiMTrPkC+A2+cW0RszwxYmn6VYxB/inlBStS5nx6xHIt/ehKRhIMhqusl7a8LjQoZnjCs5vhwxOQ1g==",
+            "version": "8.18.0",
+            "resolved": "https://registry.npmjs.org/ajv/-/ajv-8.18.0.tgz",
+            "integrity": "sha512-PlXPeEWMXMZ7sPYOHqmDyCJzcfNrUr3fGNKtezX14ykXOEIvyK81d+qydx89KY5O71FKMPaQ2vBfBFI5NHR63A==",
             "dev": true,
+            "license": "MIT",
             "dependencies": {
                 "fast-deep-equal": "^3.1.3",
                 "fast-uri": "^3.0.1",
@@ -3225,15 +3228,15 @@
             }
         },
         "node_modules/asn1.js": {
-            "version": "5.4.1",
-            "resolved": "https://registry.npmjs.org/asn1.js/-/asn1.js-5.4.1.tgz",
-            "integrity": "sha512-+I//4cYPccV8LdmBLiX8CYvf9Sp3vQsrqu2QNXRcrbiWvcx/UdlFiqUJJzxRQxgsZmvhXhn4cSKeSmoFjVdupA==",
+            "version": "4.10.1",
+            "resolved": "https://registry.npmjs.org/asn1.js/-/asn1.js-4.10.1.tgz",
+            "integrity": "sha512-p32cOF5q0Zqs9uBiONKYLm6BClCoBCM5O9JfeUSlnQLBTxYdTK+pW+nXflm8UkKd2UYlEbYz5qEi0JuZR9ckSw==",
             "dev": true,
+            "license": "MIT",
             "dependencies": {
                 "bn.js": "^4.0.0",
                 "inherits": "^2.0.1",
-                "minimalistic-assert": "^1.0.0",
-                "safer-buffer": "^2.1.0"
+                "minimalistic-assert": "^1.0.0"
             }
         },
         "node_modules/assert": {
@@ -3543,10 +3546,11 @@
             }
         },
         "node_modules/bn.js": {
-            "version": "4.11.8",
-            "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.8.tgz",
-            "integrity": "sha512-ItfYfPLkWHUjckQCk8xC+LwxgK8NYcXywGigJgSwOP8Y2iyWT4f2vsZnoOXTTbo+o5yXmIUJ4gn5538SO5S3gA==",
-            "dev": true
+            "version": "4.12.3",
+            "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.12.3.tgz",
+            "integrity": "sha512-fGTi3gxV/23FTYdAoUtLYp6qySe2KE3teyZitipKNRuVYcBkoP/bB3guXN/XVKUe9mxCHXnc9C4ocyz8OmgN0g==",
+            "dev": true,
+            "license": "MIT"
         },
         "node_modules/boolbase": {
             "version": "1.0.0",
@@ -3626,60 +3630,75 @@
             }
         },
         "node_modules/browserify-rsa": {
-            "version": "4.1.0",
-            "resolved": "https://registry.npmjs.org/browserify-rsa/-/browserify-rsa-4.1.0.tgz",
-            "integrity": "sha512-AdEER0Hkspgno2aR97SAf6vi0y0k8NuOpGnVH3O99rcA5Q6sh8QxcngtHuJ6uXwnfAXNM4Gn1Gb7/MV1+Ymbog==",
+            "version": "4.1.1",
+            "resolved": "https://registry.npmjs.org/browserify-rsa/-/browserify-rsa-4.1.1.tgz",
+            "integrity": "sha512-YBjSAiTqM04ZVei6sXighu679a3SqWORA3qZTEqZImnlkDIFtKc6pNutpjyZ8RJTjQtuYfeetkxM11GwoYXMIQ==",
             "dev": true,
+            "license": "MIT",
             "dependencies": {
-                "bn.js": "^5.0.0",
-                "randombytes": "^2.0.1"
+                "bn.js": "^5.2.1",
+                "randombytes": "^2.1.0",
+                "safe-buffer": "^5.2.1"
+            },
+            "engines": {
+                "node": ">= 0.10"
             }
         },
         "node_modules/browserify-rsa/node_modules/bn.js": {
+            "version": "5.2.3",
+            "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-5.2.3.tgz",
+            "integrity": "sha512-EAcmnPkxpntVL+DS7bO1zhcZNvCkxqtkd0ZY53h06GNQ3DEkkGZ/gKgmDv6DdZQGj9BgfSPKtJJ7Dp1GPP8f7w==",
+            "dev": true,
+            "license": "MIT"
+        },
+        "node_modules/browserify-rsa/node_modules/safe-buffer": {
             "version": "5.2.1",
-            "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-5.2.1.tgz",
-            "integrity": "sha512-eXRvHzWyYPBuB4NBy0cmYQjGitUrtqwbvlzP3G6VFnNRbsZQIxQ10PbKKHt8gZ/HW/D/747aDl+QkDqg3KQLMQ==",
-            "dev": true
+            "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+            "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
+            "dev": true,
+            "funding": [
+                {
+                    "type": "github",
+                    "url": "https://github.com/sponsors/feross"
+                },
+                {
+                    "type": "patreon",
+                    "url": "https://www.patreon.com/feross"
+                },
+                {
+                    "type": "consulting",
+                    "url": "https://feross.org/support"
+                }
+            ],
+            "license": "MIT"
         },
         "node_modules/browserify-sign": {
-            "version": "4.2.2",
-            "resolved": "https://registry.npmjs.org/browserify-sign/-/browserify-sign-4.2.2.tgz",
-            "integrity": "sha512-1rudGyeYY42Dk6texmv7c4VcQ0EsvVbLwZkA+AQB7SxvXxmcD93jcHie8bzecJ+ChDlmAm2Qyu0+Ccg5uhZXCg==",
+            "version": "4.2.5",
+            "resolved": "https://registry.npmjs.org/browserify-sign/-/browserify-sign-4.2.5.tgz",
+            "integrity": "sha512-C2AUdAJg6rlM2W5QMp2Q4KGQMVBwR1lIimTsUnutJ8bMpW5B52pGpR2gEnNBNwijumDo5FojQ0L9JrXA8m4YEw==",
             "dev": true,
+            "license": "ISC",
             "dependencies": {
-                "bn.js": "^5.2.1",
-                "browserify-rsa": "^4.1.0",
+                "bn.js": "^5.2.2",
+                "browserify-rsa": "^4.1.1",
                 "create-hash": "^1.2.0",
                 "create-hmac": "^1.1.7",
-                "elliptic": "^6.5.4",
+                "elliptic": "^6.6.1",
                 "inherits": "^2.0.4",
-                "parse-asn1": "^5.1.6",
-                "readable-stream": "^3.6.2",
+                "parse-asn1": "^5.1.9",
+                "readable-stream": "^2.3.8",
                 "safe-buffer": "^5.2.1"
             },
             "engines": {
-                "node": ">= 4"
+                "node": ">= 0.10"
             }
         },
         "node_modules/browserify-sign/node_modules/bn.js": {
-            "version": "5.2.1",
-            "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-5.2.1.tgz",
-            "integrity": "sha512-eXRvHzWyYPBuB4NBy0cmYQjGitUrtqwbvlzP3G6VFnNRbsZQIxQ10PbKKHt8gZ/HW/D/747aDl+QkDqg3KQLMQ==",
-            "dev": true
-        },
-        "node_modules/browserify-sign/node_modules/readable-stream": {
-            "version": "3.6.2",
-            "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.2.tgz",
-            "integrity": "sha512-9u/sniCrY3D5WdsERHzHE4G2YCXqoG5FTHUiCC4SIbr6XcLZBY05ya9EKjYek9O5xOAwjGq+1JdGBAS7Q9ScoA==",
+            "version": "5.2.3",
+            "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-5.2.3.tgz",
+            "integrity": "sha512-EAcmnPkxpntVL+DS7bO1zhcZNvCkxqtkd0ZY53h06GNQ3DEkkGZ/gKgmDv6DdZQGj9BgfSPKtJJ7Dp1GPP8f7w==",
             "dev": true,
-            "dependencies": {
-                "inherits": "^2.0.3",
-                "string_decoder": "^1.1.1",
-                "util-deprecate": "^1.0.1"
-            },
-            "engines": {
-                "node": ">= 6"
-            }
+            "license": "MIT"
         },
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-                "pbkdf2": "^3.0.3",
-                "safe-buffer": "^5.1.1"
+                "asn1.js": "^4.10.1",
+                "browserify-aes": "^1.2.0",
+                "evp_bytestokey": "^1.0.3",
+                "pbkdf2": "^3.1.5",
+                "safe-buffer": "^5.2.1"
+            },
+            "dependencies": {
+                "safe-buffer": {
+                    "version": "5.2.1",
+                    "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+                    "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
+                    "dev": true
+                }
             }
         },
         "parse-filepath": {
@@ -24131,50 +24255,19 @@
             "dev": true
         },
         "pbkdf2": {
-            "version": "3.1.3",
-            "resolved": "https://registry.npmjs.org/pbkdf2/-/pbkdf2-3.1.3.tgz",
-            "integrity": "sha512-wfRLBZ0feWRhCIkoMB6ete7czJcnNnqRpcoWQBLqatqXXmelSRqfdDK4F3u9T2s2cXas/hQJcryI/4lAL+XTlA==",
+            "version": "3.1.5",
+            "resolved": "https://registry.npmjs.org/pbkdf2/-/pbkdf2-3.1.5.tgz",
+            "integrity": "sha512-Q3CG/cYvCO1ye4QKkuH7EXxs3VC/rI1/trd+qX2+PolbaKG0H+bgcZzrTt96mMyRtejk+JMCiLUn3y29W8qmFQ==",
             "dev": true,
             "requires": {
-                "create-hash": "~1.1.3",
+                "create-hash": "^1.2.0",
                 "create-hmac": "^1.1.7",
-                "ripemd160": "=2.0.1",
+                "ripemd160": "^2.0.3",
                 "safe-buffer": "^5.2.1",
-                "sha.js": "^2.4.11",
-                "to-buffer": "^1.2.0"
+                "sha.js": "^2.4.12",
+                "to-buffer": "^1.2.1"
             },
             "dependencies": {
-                "create-hash": {
-                    "version": "1.1.3",
-                    "resolved": "https://registry.npmjs.org/create-hash/-/create-hash-1.1.3.tgz",
-                    "integrity": "sha512-snRpch/kwQhcdlnZKYanNF1m0RDlrCdSKQaH87w1FCFPVPNCQ/Il9QJKAX2jVBZddRdaHBMC+zXa9Gw9tmkNUA==",
-                    "dev": true,
-                    "requires": {
-                        "cipher-base": "^1.0.1",
-                        "inherits": "^2.0.1",
-                        "ripemd160": "^2.0.0",
-                        "sha.js": "^2.4.0"
-                    }
-                },
-                "hash-base": {
-                    "version": "2.0.2",
-                    "resolved": "https://registry.npmjs.org/hash-base/-/hash-base-2.0.2.tgz",
-                    "integrity": "sha512-0TROgQ1/SxE6KmxWSvXHvRj90/Xo1JvZShofnYF+f6ZsGtR4eES7WfrQzPalmyagfKZCXpVnitiRebZulWsbiw==",
-                    "dev": true,
-                    "requires": {
-                        "inherits": "^2.0.1"
-                    }
-                },
-                "ripemd160": {
-                    "version": "2.0.1",
-                    "resolved": "https://registry.npmjs.org/ripemd160/-/ripemd160-2.0.1.tgz",
-                    "integrity": "sha512-J7f4wutN8mdbV08MJnXibYpCOPHR+yzy+iQ/AsjMv2j8cLavQ8VGagDFUwwTAdF8FmRKVeNpbTTEwNHCW1g94w==",
-                    "dev": true,
-                    "requires": {
-                        "hash-base": "^2.0.0",
-                        "inherits": "^2.0.1"
-                    }
-                },
                 "safe-buffer": {
                     "version": "5.2.1",
                     "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
@@ -24481,9 +24574,9 @@
             }
         },
         "readable-stream": {
-            "version": "2.3.7",
-            "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.7.tgz",
-            "integrity": "sha512-Ebho8K4jIbHAxnuxi7o42OrZgF/ZTNcsZj6nRKyUmkhLFq8CHItp/fy6hQZuZmP/n3yZ9VBUbp4zz/mX8hmYPw==",
+            "version": "2.3.8",
+            "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-2.3.8.tgz",
+            "integrity": "sha512-8p0AUk4XODgIewSi0l8Epjs+EVnWiK7NoDIEGU0HhE7+ZyY8D1IMY7odu5lRrFXGg71L15KG8QrPmum45RTtdA==",
             "dev": true,
             "requires": {
                 "core-util-is": "~1.0.0",
@@ -24704,13 +24797,33 @@
             }
         },
         "ripemd160": {
-            "version": "2.0.2",
-            "resolved": "https://registry.npmjs.org/ripemd160/-/ripemd160-2.0.2.tgz",
-            "integrity": "sha512-ii4iagi25WusVoiC4B4lq7pbXfAp3D9v5CwfkY33vffw2+pkDjY1D8GaN7spsxvCSx8dkPqOZCEZyfxcmJG2IA==",
+            "version": "2.0.3",
+            "resolved": "https://registry.npmjs.org/ripemd160/-/ripemd160-2.0.3.tgz",
+            "integrity": "sha512-5Di9UC0+8h1L6ZD2d7awM7E/T4uA1fJRlx6zk/NvdCCVEoAnFqvHmCuNeIKoCeIixBX/q8uM+6ycDvF8woqosA==",
             "dev": true,
             "requires": {
-                "hash-base": "^3.0.0",
-                "inherits": "^2.0.1"
+                "hash-base": "^3.1.2",
+                "inherits": "^2.0.4"
+            },
+            "dependencies": {
+                "hash-base": {
+                    "version": "3.1.2",
+                    "resolved": "https://registry.npmjs.org/hash-base/-/hash-base-3.1.2.tgz",
+                    "integrity": "sha512-Bb33KbowVTIj5s7Ked1OsqHUeCpz//tPwR+E2zJgJKo9Z5XolZ9b6bdUgjmYlwnWhoOQKoTd1TYToZGn5mAYOg==",
+                    "dev": true,
+                    "requires": {
+                        "inherits": "^2.0.4",
+                        "readable-stream": "^2.3.8",
+                        "safe-buffer": "^5.2.1",
+                        "to-buffer": "^1.2.1"
+                    }
+                },
+                "safe-buffer": {
+                    "version": "5.2.1",
+                    "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
+                    "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
+                    "dev": true
+                }
             }
         },
         "run-parallel": {
@@ -25030,9 +25143,9 @@
             },
             "dependencies": {
                 "diff": {
-                    "version": "5.2.0",
-                    "resolved": "https://registry.npmjs.org/diff/-/diff-5.2.0.tgz",
-                    "integrity": "sha512-uIFDxqpRZGZ6ThOk84hEfqWoHx2devRFvpTZcTHur85vImfaxUbTW9Ryh4CpCuDnToOP1CEtXKIgytHBPVff5A==",
+                    "version": "5.2.2",
+                    "resolved": "https://registry.npmjs.org/diff/-/diff-5.2.2.tgz",
+                    "integrity": "sha512-vtcDfH3TOjP8UekytvnHH1o1P4FcUdt4eQ1Y+Abap1tk/OB2MWQvcwS2ClCd1zuIhc3JKOx6p3kod8Vfys3E+A==",
                     "dev": true
                 },
                 "has-flag": {
@@ -25504,22 +25617,21 @@
             }
         },
         "terser-webpack-plugin": {
-            "version": "5.3.16",
-            "resolved": "https://registry.npmjs.org/terser-webpack-plugin/-/terser-webpack-plugin-5.3.16.tgz",
-            "integrity": "sha512-h9oBFCWrq78NyWWVcSwZarJkZ01c2AyGrzs1crmHZO3QUg9D61Wu4NPjBy69n7JqylFF5y+CsUZYmYEIZ3mR+Q==",
+            "version": "5.3.17",
+            "resolved": "https://registry.npmjs.org/terser-webpack-plugin/-/terser-webpack-plugin-5.3.17.tgz",
+            "integrity": "sha512-YR7PtUp6GMU91BgSJmlaX/rS2lGDbAF7D+Wtq7hRO+MiljNmodYvqslzCFiYVAgW+Qoaaia/QUIP4lGXufjdZw==",
             "dev": true,
             "requires": {
                 "@jridgewell/trace-mapping": "^0.3.25",
                 "jest-worker": "^27.4.5",
                 "schema-utils": "^4.3.0",
-                "serialize-javascript": "^6.0.2",
                 "terser": "^5.31.1"
             },
             "dependencies": {
                 "ajv": {
-                    "version": "8.17.1",
-                    "resolved": "https://registry.npmjs.org/ajv/-/ajv-8.17.1.tgz",
-                    "integrity": "sha512-B/gBuNg5SiMTrPkC+A2+cW0RszwxYmn6VYxB/inlBStS5nx6xHIt/ehKRhIMhqusl7a8LjQoZnjCs5vhwxOQ1g==",
+                    "version": "8.18.0",
+                    "resolved": "https://registry.npmjs.org/ajv/-/ajv-8.18.0.tgz",
+                    "integrity": "sha512-PlXPeEWMXMZ7sPYOHqmDyCJzcfNrUr3fGNKtezX14ykXOEIvyK81d+qydx89KY5O71FKMPaQ2vBfBFI5NHR63A==",
                     "dev": true,
                     "requires": {
                         "fast-deep-equal": "^3.1.3",
@@ -25569,9 +25681,9 @@
             },
             "dependencies": {
                 "minimatch": {
-                    "version": "3.1.2",
-                    "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz",
-                    "integrity": "sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==",
+                    "version": "3.1.5",
+                    "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.5.tgz",
+                    "integrity": "sha512-VgjWUsnnT6n+NUk6eZq77zeFdpW2LWDzP6zFGrCbHXiYNul5Dzqk2HHQ5uFH2DNW5Xbp8+jVzaeNt94ssEEl4w==",
                     "dev": true,
                     "requires": {
                         "brace-expansion": "^1.1.7"
@@ -25657,9 +25769,9 @@
             "dev": true
         },
         "to-buffer": {
-            "version": "1.2.1",
-            "resolved": "https://registry.npmjs.org/to-buffer/-/to-buffer-1.2.1.tgz",
-            "integrity": "sha512-tB82LpAIWjhLYbqjx3X4zEeHN6M8CiuOEy2JY8SEQVdYRe3CCHOFaqrBW1doLDrfpWhplcW7BL+bO3/6S3pcDQ==",
+            "version": "1.2.2",
+            "resolved": "https://registry.npmjs.org/to-buffer/-/to-buffer-1.2.2.tgz",
+            "integrity": "sha512-db0E3UJjcFhpDhAF4tLo03oli3pwl3dbnzXOUIlRKrp+ldk/VUxzpWYZENsw2SZiuBjHAk7DfB0VU7NKdpb6sw==",
             "dev": true,
             "requires": {
                 "isarray": "^2.0.5",
@@ -26404,11 +26516,11 @@
                     }
                 },
                 "minimatch": {
-                    "version": "9.0.3",
-                    "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-9.0.3.tgz",
-                    "integrity": "sha512-RHiac9mvaRw0x3AYRgDC1CxAP7HTcNrrECeA8YYJeWnpo+2Q5CegtZjaotWTWxDG3UeGA1coE05iH1mPjT/2mg==",
+                    "version": "9.0.9",
+                    "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-9.0.9.tgz",
+                    "integrity": "sha512-OBwBN9AL4dqmETlpS2zasx+vTeWclWzkblfZk7KTA5j3jeOONz/tRCnZomUyvNg83wL5Zv9Ss6HMJXAgL8R2Yg==",
                     "requires": {
-                        "brace-expansion": "^2.0.1"
+                        "brace-expansion": "^2.0.2"
                     }
                 }
             }
@@ -26479,9 +26591,9 @@
             },
             "dependencies": {
                 "ajv": {
-                    "version": "8.17.1",
-                    "resolved": "https://registry.npmjs.org/ajv/-/ajv-8.17.1.tgz",
-                    "integrity": "sha512-B/gBuNg5SiMTrPkC+A2+cW0RszwxYmn6VYxB/inlBStS5nx6xHIt/ehKRhIMhqusl7a8LjQoZnjCs5vhwxOQ1g==",
+                    "version": "8.18.0",
+                    "resolved": "https://registry.npmjs.org/ajv/-/ajv-8.18.0.tgz",
+                    "integrity": "sha512-PlXPeEWMXMZ7sPYOHqmDyCJzcfNrUr3fGNKtezX14ykXOEIvyK81d+qydx89KY5O71FKMPaQ2vBfBFI5NHR63A==",
                     "dev": true,
                     "requires": {
                         "fast-deep-equal": "^3.1.3",
@@ -26744,9 +26856,9 @@
             }
         },
         "workerpool": {
-            "version": "6.5.1",
-            "resolved": "https://registry.npmjs.org/workerpool/-/workerpool-6.5.1.tgz",
-            "integrity": "sha512-Fs4dNYcsdpYSAfVxhnl1L5zTksjvOJxtC5hzMNl+1t9B8hTJTdKDyZ5ju7ztgPy+ft9tBFXoOlDNiOT9WUXZlA==",
+            "version": "9.3.4",
+            "resolved": "https://registry.npmjs.org/workerpool/-/workerpool-9.3.4.tgz",
+            "integrity": "sha512-TmPRQYYSAnnDiEB0P/Ytip7bFGvqnSU6I2BcuSw7Hx+JSg/DsUi5ebYfc8GYaSdpuvOcEs6dXxPurOYpe9QFwg==",
             "dev": true
         },
         "wrap-ansi": {

From 172d9e64f63b26b9b0674cb3eb75851fac4b0862 Mon Sep 17 00:00:00 2001
From: Anthony Kim <62267334+anthonykim1@users.noreply.github.com>
Date: Wed, 11 Mar 2026 10:38:03 -0700
Subject: [PATCH 155/178] Prevent double/triple activation from two extensions
 (#25849)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Resolves:
https://github.com/microsoft/vscode-python-environments/issues/1325

Cause: The Python extension only backed off if the user explicitly opted
into the envs extension (useEnvironmentsExtension: true). But the envs
extension activates by default whenever it's installed — it only backs
off if the setting is explicitly false. So in this case, (extension
installed, setting not touched), both fired.

Added shouldEnvExtHandleActivation() — a function that mirrors the envs
extension's own logic: "am I installed and not explicitly disabled?"
Used it in all 3 places the Python extension triggers terminal
activation to bail out when the envs extension will handle it. This
covers global, workspace, and folder-level settings.

We want exactly one extension activates the terminal, never both, never
neither.
---
 src/client/common/terminal/activator/index.ts |  6 +-
 src/client/envExt/api.internal.ts             | 37 +++++++-
 src/client/providers/terminalProvider.ts      |  4 +-
 src/client/terminals/activation.ts            |  4 +
 .../common/terminals/activation.unit.test.ts  |  6 ++
 .../terminals/activator/index.unit.test.ts    | 95 ++++++++++++++++++-
 src/test/providers/terminal.unit.test.ts      |  3 +
 src/test/terminals/activation.unit.test.ts    | 16 ++++
 8 files changed, 164 insertions(+), 7 deletions(-)

diff --git a/src/client/common/terminal/activator/index.ts b/src/client/common/terminal/activator/index.ts
index 24ffb5008364..cde04bdbf10d 100644
--- a/src/client/common/terminal/activator/index.ts
+++ b/src/client/common/terminal/activator/index.ts
@@ -9,7 +9,7 @@ import { IConfigurationService, IExperimentService } from '../../types';
 import { ITerminalActivationHandler, ITerminalActivator, ITerminalHelper, TerminalActivationOptions } from '../types';
 import { BaseTerminalActivator } from './base';
 import { inTerminalEnvVarExperiment } from '../../experiments/helpers';
-import { useEnvExtension } from '../../../envExt/api.internal';
+import { shouldEnvExtHandleActivation } from '../../../envExt/api.internal';
 import { EventName } from '../../../telemetry/constants';
 import { sendTelemetryEvent } from '../../../telemetry';
 
@@ -44,8 +44,8 @@ export class TerminalActivator implements ITerminalActivator {
         const settings = this.configurationService.getSettings(options?.resource);
         const activateEnvironment =
             settings.terminal.activateEnvironment && !inTerminalEnvVarExperiment(this.experimentService);
-        if (!activateEnvironment || options?.hideFromUser || useEnvExtension()) {
-            if (useEnvExtension()) {
+        if (!activateEnvironment || options?.hideFromUser || shouldEnvExtHandleActivation()) {
+            if (shouldEnvExtHandleActivation()) {
                 sendTelemetryEvent(EventName.PYTHON_INTERPRETER_ACTIVATION_FOR_TERMINAL);
             }
             return false;
diff --git a/src/client/envExt/api.internal.ts b/src/client/envExt/api.internal.ts
index 5acdd5bba8e3..5edfb712072e 100644
--- a/src/client/envExt/api.internal.ts
+++ b/src/client/envExt/api.internal.ts
@@ -13,12 +13,47 @@ import {
     DidChangeEnvironmentEventArgs,
 } from './types';
 import { executeCommand } from '../common/vscodeApis/commandApis';
-import { getConfiguration } from '../common/vscodeApis/workspaceApis';
+import { getConfiguration, getWorkspaceFolders } from '../common/vscodeApis/workspaceApis';
 import { traceError, traceLog } from '../logging';
 import { Interpreters } from '../common/utils/localize';
 
 export const ENVS_EXTENSION_ID = 'ms-python.vscode-python-envs';
 
+export function isEnvExtensionInstalled(): boolean {
+    return !!getExtension(ENVS_EXTENSION_ID);
+}
+
+/**
+ * Returns true if the Python Environments extension is installed and not explicitly
+ * disabled by the user. Mirrors the envs extension's own activation logic: it
+ * deactivates only when `python.useEnvironmentsExtension` is explicitly set to false
+ * at the global, workspace, or workspace-folder level.
+ */
+export function shouldEnvExtHandleActivation(): boolean {
+    if (!isEnvExtensionInstalled()) {
+        return false;
+    }
+    const config = getConfiguration('python');
+    const inspection = config.inspect<boolean>('useEnvironmentsExtension');
+    if (inspection?.globalValue === false || inspection?.workspaceValue === false) {
+        return false;
+    }
+    // The envs extension also checks folder-scoped settings in multi-root workspaces.
+    // Any single folder with the setting set to false causes the envs extension to
+    // deactivate entirely (window-wide), so we must mirror that here.
+    const workspaceFolders = getWorkspaceFolders();
+    if (workspaceFolders) {
+        for (const folder of workspaceFolders) {
+            const folderConfig = getConfiguration('python', folder.uri);
+            const folderInspection = folderConfig.inspect<boolean>('useEnvironmentsExtension');
+            if (folderInspection?.workspaceFolderValue === false) {
+                return false;
+            }
+        }
+    }
+    return true;
+}
+
 let _useExt: boolean | undefined;
 export function useEnvExtension(): boolean {
     if (_useExt !== undefined) {
diff --git a/src/client/providers/terminalProvider.ts b/src/client/providers/terminalProvider.ts
index 841f479269ac..f68f151110ec 100644
--- a/src/client/providers/terminalProvider.ts
+++ b/src/client/providers/terminalProvider.ts
@@ -11,7 +11,7 @@ import { swallowExceptions } from '../common/utils/decorators';
 import { IServiceContainer } from '../ioc/types';
 import { captureTelemetry, sendTelemetryEvent } from '../telemetry';
 import { EventName } from '../telemetry/constants';
-import { useEnvExtension } from '../envExt/api.internal';
+import { useEnvExtension, shouldEnvExtHandleActivation } from '../envExt/api.internal';
 
 export class TerminalProvider implements Disposable {
     private disposables: Disposable[] = [];
@@ -33,7 +33,7 @@ export class TerminalProvider implements Disposable {
             currentTerminal &&
             pythonSettings.terminal.activateEnvInCurrentTerminal &&
             !inTerminalEnvVarExperiment(experimentService) &&
-            !useEnvExtension()
+            !shouldEnvExtHandleActivation()
         ) {
             const hideFromUser =
                 'hideFromUser' in currentTerminal.creationOptions && currentTerminal.creationOptions.hideFromUser;
diff --git a/src/client/terminals/activation.ts b/src/client/terminals/activation.ts
index 143a2de14e5c..ed26916e3eaa 100644
--- a/src/client/terminals/activation.ts
+++ b/src/client/terminals/activation.ts
@@ -9,6 +9,7 @@ import { IActiveResourceService, ITerminalManager } from '../common/application/
 import { ITerminalActivator } from '../common/terminal/types';
 import { IDisposable, IDisposableRegistry } from '../common/types';
 import { ITerminalAutoActivation } from './types';
+import { shouldEnvExtHandleActivation } from '../envExt/api.internal';
 
 @injectable()
 export class TerminalAutoActivation implements ITerminalAutoActivation {
@@ -49,6 +50,9 @@ export class TerminalAutoActivation implements ITerminalAutoActivation {
         if (this.terminalsNotToAutoActivate.has(terminal)) {
             return;
         }
+        if (shouldEnvExtHandleActivation()) {
+            return;
+        }
         if ('hideFromUser' in terminal.creationOptions && terminal.creationOptions.hideFromUser) {
             return;
         }
diff --git a/src/test/common/terminals/activation.unit.test.ts b/src/test/common/terminals/activation.unit.test.ts
index 49ada1c06b11..d87d33ea03e6 100644
--- a/src/test/common/terminals/activation.unit.test.ts
+++ b/src/test/common/terminals/activation.unit.test.ts
@@ -3,6 +3,7 @@
 
 'use strict';
 import { expect } from 'chai';
+import * as sinon from 'sinon';
 import { anything, instance, mock, verify, when } from 'ts-mockito';
 import * as TypeMoq from 'typemoq';
 import { Terminal, Uri } from 'vscode';
@@ -15,6 +16,7 @@ import { IDisposable } from '../../../client/common/types';
 import { TerminalAutoActivation } from '../../../client/terminals/activation';
 import { ITerminalAutoActivation } from '../../../client/terminals/types';
 import { noop } from '../../core';
+import * as extapi from '../../../client/envExt/api.internal';
 
 suite('Terminal Auto Activation', () => {
     let activator: ITerminalActivator;
@@ -25,6 +27,7 @@ suite('Terminal Auto Activation', () => {
     let terminal: Terminal;
 
     setup(() => {
+        sinon.stub(extapi, 'shouldEnvExtHandleActivation').returns(false);
         terminal = ({
             dispose: noop,
             hide: noop,
@@ -46,6 +49,9 @@ suite('Terminal Auto Activation', () => {
             instance(activeResourceService),
         );
     });
+    teardown(() => {
+        sinon.restore();
+    });
 
     test('New Terminals should be activated', async () => {
         type EventHandler = (e: Terminal) => void;
diff --git a/src/test/common/terminals/activator/index.unit.test.ts b/src/test/common/terminals/activator/index.unit.test.ts
index 6a50901bc99d..34d1cf8f1bcd 100644
--- a/src/test/common/terminals/activator/index.unit.test.ts
+++ b/src/test/common/terminals/activator/index.unit.test.ts
@@ -6,7 +6,7 @@
 import { assert } from 'chai';
 import * as sinon from 'sinon';
 import * as TypeMoq from 'typemoq';
-import { Terminal } from 'vscode';
+import { Terminal, Uri } from 'vscode';
 import { TerminalActivator } from '../../../../client/common/terminal/activator';
 import {
     ITerminalActivationHandler,
@@ -20,6 +20,8 @@ import {
     ITerminalSettings,
 } from '../../../../client/common/types';
 import * as extapi from '../../../../client/envExt/api.internal';
+import * as workspaceApis from '../../../../client/common/vscodeApis/workspaceApis';
+import * as extensionsApi from '../../../../client/common/vscodeApis/extensionsApi';
 
 suite('Terminal Activator', () => {
     let activator: TerminalActivator;
@@ -29,9 +31,12 @@ suite('Terminal Activator', () => {
     let terminalSettings: TypeMoq.IMock<ITerminalSettings>;
     let experimentService: TypeMoq.IMock<IExperimentService>;
     let useEnvExtensionStub: sinon.SinonStub;
+    let shouldEnvExtHandleActivationStub: sinon.SinonStub;
     setup(() => {
         useEnvExtensionStub = sinon.stub(extapi, 'useEnvExtension');
         useEnvExtensionStub.returns(false);
+        shouldEnvExtHandleActivationStub = sinon.stub(extapi, 'shouldEnvExtHandleActivation');
+        shouldEnvExtHandleActivationStub.returns(false);
 
         baseActivator = TypeMoq.Mock.ofType<ITerminalActivator>();
         terminalSettings = TypeMoq.Mock.ofType<ITerminalSettings>();
@@ -113,4 +118,92 @@ suite('Terminal Activator', () => {
     test('Terminal is not activated if auto-activate setting is set to true but terminal is hidden', () =>
         testActivationAndHandlers(false, true, true));
     test('Terminal is not activated and handlers are invoked', () => testActivationAndHandlers(false, false));
+
+    test('Terminal is not activated from Python extension when Env extension should handle activation', async () => {
+        shouldEnvExtHandleActivationStub.returns(true);
+        terminalSettings.setup((b) => b.activateEnvironment).returns(() => true);
+        baseActivator
+            .setup((b) => b.activateEnvironmentInTerminal(TypeMoq.It.isAny(), TypeMoq.It.isAny()))
+            .returns(() => Promise.resolve(true))
+            .verifiable(TypeMoq.Times.never());
+
+        const terminal = TypeMoq.Mock.ofType<Terminal>();
+        const activated = await activator.activateEnvironmentInTerminal(terminal.object, {
+            preserveFocus: true,
+        });
+
+        assert.strictEqual(activated, false);
+        baseActivator.verifyAll();
+    });
+});
+
+suite('shouldEnvExtHandleActivation', () => {
+    let getExtensionStub: sinon.SinonStub;
+    let getConfigurationStub: sinon.SinonStub;
+    let getWorkspaceFoldersStub: sinon.SinonStub;
+
+    setup(() => {
+        getExtensionStub = sinon.stub(extensionsApi, 'getExtension');
+        getConfigurationStub = sinon.stub(workspaceApis, 'getConfiguration');
+        getWorkspaceFoldersStub = sinon.stub(workspaceApis, 'getWorkspaceFolders');
+        getWorkspaceFoldersStub.returns(undefined);
+    });
+
+    teardown(() => {
+        sinon.restore();
+    });
+
+    test('Returns false when envs extension is not installed', () => {
+        getExtensionStub.returns(undefined);
+        assert.strictEqual(extapi.shouldEnvExtHandleActivation(), false);
+    });
+
+    test('Returns true when envs extension is installed and setting is not explicitly set', () => {
+        getExtensionStub.returns({ id: extapi.ENVS_EXTENSION_ID });
+        getConfigurationStub.returns({
+            inspect: () => ({ globalValue: undefined, workspaceValue: undefined }),
+        });
+        assert.strictEqual(extapi.shouldEnvExtHandleActivation(), true);
+    });
+
+    test('Returns false when envs extension is installed but globalValue is false', () => {
+        getExtensionStub.returns({ id: extapi.ENVS_EXTENSION_ID });
+        getConfigurationStub.returns({
+            inspect: () => ({ globalValue: false, workspaceValue: undefined }),
+        });
+        assert.strictEqual(extapi.shouldEnvExtHandleActivation(), false);
+    });
+
+    test('Returns false when envs extension is installed but workspaceValue is false', () => {
+        getExtensionStub.returns({ id: extapi.ENVS_EXTENSION_ID });
+        getConfigurationStub.returns({
+            inspect: () => ({ globalValue: undefined, workspaceValue: false }),
+        });
+        assert.strictEqual(extapi.shouldEnvExtHandleActivation(), false);
+    });
+
+    test('Returns true when envs extension is installed and setting is explicitly true', () => {
+        getExtensionStub.returns({ id: extapi.ENVS_EXTENSION_ID });
+        getConfigurationStub.returns({
+            inspect: () => ({ globalValue: true, workspaceValue: undefined }),
+        });
+        assert.strictEqual(extapi.shouldEnvExtHandleActivation(), true);
+    });
+
+    test('Returns false when a workspace folder has workspaceFolderValue set to false', () => {
+        getExtensionStub.returns({ id: extapi.ENVS_EXTENSION_ID });
+        const folderUri = Uri.parse('file:///workspace/folder1');
+        getWorkspaceFoldersStub.returns([{ uri: folderUri, name: 'folder1', index: 0 }]);
+        getConfigurationStub.callsFake((_section: string, scope?: Uri) => {
+            if (scope) {
+                return {
+                    inspect: () => ({ workspaceFolderValue: false }),
+                };
+            }
+            return {
+                inspect: () => ({ globalValue: undefined, workspaceValue: undefined }),
+            };
+        });
+        assert.strictEqual(extapi.shouldEnvExtHandleActivation(), false);
+    });
 });
diff --git a/src/test/providers/terminal.unit.test.ts b/src/test/providers/terminal.unit.test.ts
index ac39ded922c8..8f684835b7cf 100644
--- a/src/test/providers/terminal.unit.test.ts
+++ b/src/test/providers/terminal.unit.test.ts
@@ -29,10 +29,13 @@ suite('Terminal Provider', () => {
     let experimentService: TypeMoq.IMock<IExperimentService>;
     let terminalProvider: TerminalProvider;
     let useEnvExtensionStub: sinon.SinonStub;
+    let shouldEnvExtHandleActivationStub: sinon.SinonStub;
     const resource = Uri.parse('a');
     setup(() => {
         useEnvExtensionStub = sinon.stub(extapi, 'useEnvExtension');
         useEnvExtensionStub.returns(false);
+        shouldEnvExtHandleActivationStub = sinon.stub(extapi, 'shouldEnvExtHandleActivation');
+        shouldEnvExtHandleActivationStub.returns(false);
 
         serviceContainer = TypeMoq.Mock.ofType<IServiceContainer>();
         commandManager = TypeMoq.Mock.ofType<ICommandManager>();
diff --git a/src/test/terminals/activation.unit.test.ts b/src/test/terminals/activation.unit.test.ts
index dea0c891229d..4c5294a82f49 100644
--- a/src/test/terminals/activation.unit.test.ts
+++ b/src/test/terminals/activation.unit.test.ts
@@ -2,6 +2,7 @@
 // Licensed under the MIT License.
 
 import { anything, instance, mock, verify, when } from 'ts-mockito';
+import * as sinon from 'sinon';
 import { EventEmitter, Terminal } from 'vscode';
 import { ActiveResourceService } from '../../client/common/application/activeResource';
 import { TerminalManager } from '../../client/common/application/terminalManager';
@@ -11,6 +12,7 @@ import { ITerminalActivator } from '../../client/common/terminal/types';
 import { TerminalAutoActivation } from '../../client/terminals/activation';
 import { ITerminalAutoActivation } from '../../client/terminals/types';
 import { noop } from '../core';
+import * as extapi from '../../client/envExt/api.internal';
 
 suite('Terminal', () => {
     suite('Terminal Auto Activation', () => {
@@ -21,8 +23,12 @@ suite('Terminal', () => {
         let onDidOpenTerminalEventEmitter: EventEmitter<Terminal>;
         let terminal: Terminal;
         let nonActivatedTerminal: Terminal;
+        let shouldEnvExtHandleActivationStub: sinon.SinonStub;
 
         setup(() => {
+            shouldEnvExtHandleActivationStub = sinon.stub(extapi, 'shouldEnvExtHandleActivation');
+            shouldEnvExtHandleActivationStub.returns(false);
+
             manager = mock(TerminalManager);
             activator = mock(TerminalActivator);
             resourceService = mock(ActiveResourceService);
@@ -60,6 +66,9 @@ suite('Terminal', () => {
             autoActivation.register();
         });
         // teardown(() => fakeTimer.uninstall());
+        teardown(() => {
+            sinon.restore();
+        });
 
         test('Should activate terminal', async () => {
             // Trigger opening a terminal.
@@ -77,5 +86,12 @@ suite('Terminal', () => {
             // The terminal should get activated.
             verify(activator.activateEnvironmentInTerminal(anything(), anything())).never();
         });
+        test('Should not activate terminal when envs extension should handle activation', async () => {
+            shouldEnvExtHandleActivationStub.returns(true);
+
+            await ((onDidOpenTerminalEventEmitter.fire(terminal) as unknown) as Promise<void>);
+
+            verify(activator.activateEnvironmentInTerminal(anything(), anything())).never();
+        });
     });
 });

From 63bb68e86b26dfca9fe53901ed61327c90653fdd Mon Sep 17 00:00:00 2001
From: Copilot <198982749+Copilot@users.noreply.github.com>
Date: Wed, 11 Mar 2026 17:40:49 +0000
Subject: [PATCH 156/178] Bump PET version to 2026.4 in stable release pipeline
 (#25847)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Updates the Python Environment Tools (PET) artifact source branch in the
stable release pipeline.

- Changed `branchName` from `refs/heads/release/2026.0` to
`refs/heads/release/2026.4` in `build/azure-pipeline.stable.yml`

<!-- START COPILOT CODING AGENT TIPS -->
---

💬 We'd love your input! Share your thoughts on Copilot coding agent in
our [2 minute survey](https://gh.io/copilot-coding-agent-survey).

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: eleanorjboyd <26030610+eleanorjboyd@users.noreply.github.com>
---
 build/azure-pipeline.stable.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build/azure-pipeline.stable.yml b/build/azure-pipeline.stable.yml
index 237ba08dbc99..cd66613eec8d 100644
--- a/build/azure-pipeline.stable.yml
+++ b/build/azure-pipeline.stable.yml
@@ -128,7 +128,7 @@ extends:
           project: 'Monaco'
           definition: 593
           buildVersionToDownload: 'latestFromBranch'
-          branchName: 'refs/heads/release/2026.0'
+          branchName: 'refs/heads/release/2026.4'
           targetPath: '$(Build.SourcesDirectory)/python-env-tools/bin'
           artifactName: 'bin-$(buildTarget)'
           itemPattern: |

From 7b8fad023f2d831ad58d6253af6be84c95d6d95b Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Wed, 11 Mar 2026 11:01:25 -0700
Subject: [PATCH 157/178] bump to release v 2026.4.0 (#25852)

---
 package-lock.json | 4 ++--
 package.json      | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index e015ad836067..a94a66bf6e3c 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "python",
-    "version": "2026.2.0",
+    "version": "2026.4.0",
     "lockfileVersion": 2,
     "requires": true,
     "packages": {
         "": {
             "name": "python",
-            "version": "2026.2.0",
+            "version": "2026.4.0",
             "license": "MIT",
             "dependencies": {
                 "@iarna/toml": "^3.0.0",
diff --git a/package.json b/package.json
index 847926dccc64..b702c5876c08 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
     "name": "python",
     "displayName": "Python",
     "description": "Python language support with extension access points for IntelliSense (Pylance), Debugging (Python Debugger), linting, formatting, refactoring, unit tests, and more.",
-    "version": "2026.2.0",
+    "version": "2026.4.0",
     "featureFlags": {
         "usingNewInterpreterStorage": true
     },

From db312e294e0d14459a0480c80dc86942b2c681c1 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Wed, 11 Mar 2026 11:18:35 -0700
Subject: [PATCH 158/178] bump to v2026.5.0-dev (#25853)

---
 package-lock.json | 4 ++--
 package.json      | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index a94a66bf6e3c..f86f2ba09aa2 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
     "name": "python",
-    "version": "2026.4.0",
+    "version": "2026.5.0-dev",
     "lockfileVersion": 2,
     "requires": true,
     "packages": {
         "": {
             "name": "python",
-            "version": "2026.4.0",
+            "version": "2026.5.0-dev",
             "license": "MIT",
             "dependencies": {
                 "@iarna/toml": "^3.0.0",
diff --git a/package.json b/package.json
index b702c5876c08..2a685fbc158e 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
     "name": "python",
     "displayName": "Python",
     "description": "Python language support with extension access points for IntelliSense (Pylance), Debugging (Python Debugger), linting, formatting, refactoring, unit tests, and more.",
-    "version": "2026.4.0",
+    "version": "2026.5.0-dev",
     "featureFlags": {
         "usingNewInterpreterStorage": true
     },

From 4cea6235e2f19da3c6aa42f0008243dfb6dd4974 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 16 Mar 2026 07:52:33 -0700
Subject: [PATCH 159/178] Bump mheap/github-action-required-labels from 5.5.1
 to 5.5.2 (#25864)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps
[mheap/github-action-required-labels](https://github.com/mheap/github-action-required-labels)
from 5.5.1 to 5.5.2.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/mheap/github-action-required-labels/releases">mheap/github-action-required-labels's
releases</a>.</em></p>
<blockquote>
<h2>v5.5.2</h2>
<h2>What's Changed</h2>
<ul>
<li>Update dependencies with npm audit fix by <a
href="https://github.com/mheap"><code>@​mheap</code></a> in <a
href="https://redirect.github.com/mheap/github-action-required-labels/pull/94">mheap/github-action-required-labels#94</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/mheap/github-action-required-labels/compare/v5.5.1...v5.5.2">https://github.com/mheap/github-action-required-labels/compare/v5.5.1...v5.5.2</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/mheap/github-action-required-labels/commit/0ac283b4e65c1fb28ce6079dea5546ceca98ccbe"><code>0ac283b</code></a>
Automatic compilation</li>
<li><a
href="https://github.com/mheap/github-action-required-labels/commit/61727adf774dff0ccec675a021960ed53f3cf67f"><code>61727ad</code></a>
Update dependencies with npm audit fix (<a
href="https://redirect.github.com/mheap/github-action-required-labels/issues/94">#94</a>)</li>
<li>See full diff in <a
href="https://github.com/mheap/github-action-required-labels/compare/8afbe8ae6ab7647d0c9f0cfa7c2f939650d22509...0ac283b4e65c1fb28ce6079dea5546ceca98ccbe">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=mheap/github-action-required-labels&package-manager=github_actions&previous-version=5.5.1&new-version=5.5.2)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

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[//]: # (dependabot-automerge-end)

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<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
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- `@dependabot ignore this major version` will close this PR and stop
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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 .github/workflows/pr-labels.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/pr-labels.yml b/.github/workflows/pr-labels.yml
index 04f87a6d49ba..af24ac10772c 100644
--- a/.github/workflows/pr-labels.yml
+++ b/.github/workflows/pr-labels.yml
@@ -17,7 +17,7 @@ jobs:
       pull-requests: write
     steps:
       - name: 'PR impact specified'
-        uses: mheap/github-action-required-labels@8afbe8ae6ab7647d0c9f0cfa7c2f939650d22509 # v5.5.1
+        uses: mheap/github-action-required-labels@0ac283b4e65c1fb28ce6079dea5546ceca98ccbe # v5.5.2
         with:
           mode: exactly
           count: 1

From 29d3b6fefc6ed84b615d33a5ac5e3bf4ea6405f6 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Fri, 20 Mar 2026 14:36:59 +0000
Subject: [PATCH 160/178] Bump flatted from 3.2.4 to 3.4.2 (#25874)

Bumps [flatted](https://github.com/WebReflection/flatted) from 3.2.4 to
3.4.2.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/WebReflection/flatted/commit/3bf09091c3562e17a0647bc06710dd6097079cf7"><code>3bf0909</code></a>
3.4.2</li>
<li><a
href="https://github.com/WebReflection/flatted/commit/885ddcc33cf9657caf38c57c7be45ae1c5272802"><code>885ddcc</code></a>
fix CWE-1321</li>
<li><a
href="https://github.com/WebReflection/flatted/commit/0bdba705d130f00892b1b8fcc80cf4cdea0631e3"><code>0bdba70</code></a>
added flatted-view to the benchmark</li>
<li><a
href="https://github.com/WebReflection/flatted/commit/2a02dce7c641dec31194c67663f9b0b12e62da20"><code>2a02dce</code></a>
3.4.1</li>
<li><a
href="https://github.com/WebReflection/flatted/commit/fba4e8f2e113665da275b19cd0f695f3d98e9416"><code>fba4e8f</code></a>
Merge pull request <a
href="https://redirect.github.com/WebReflection/flatted/issues/89">#89</a>
from WebReflection/python-fix</li>
<li><a
href="https://github.com/WebReflection/flatted/commit/5fe86485e6df7f7f34a07a2a85498bd3e17384e7"><code>5fe8648</code></a>
added &quot;when in Rome&quot; also a test for PHP</li>
<li><a
href="https://github.com/WebReflection/flatted/commit/53517adbefe724fe472b2f9ebcdb01910d0ae3f0"><code>53517ad</code></a>
some minor improvement</li>
<li><a
href="https://github.com/WebReflection/flatted/commit/b3e2a0c387bf446435fec45ad7f05299f012346f"><code>b3e2a0c</code></a>
Fixing recursion issue in Python too</li>
<li><a
href="https://github.com/WebReflection/flatted/commit/c4b46dbcbf782326e54ea1b65d3ebb1dc7a23fad"><code>c4b46db</code></a>
Add SECURITY.md for security policy and reporting</li>
<li><a
href="https://github.com/WebReflection/flatted/commit/f86d071e0f70de5a7d8200198824a3f07fc9c988"><code>f86d071</code></a>
Create dependabot.yml for version updates</li>
<li>Additional commits viewable in <a
href="https://github.com/WebReflection/flatted/compare/v3.2.4...v3.4.2">compare
view</a></li>
</ul>
</details>
<br />


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---
 package-lock.json | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index f86f2ba09aa2..9dbea4e9e328 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -6993,9 +6993,9 @@
             }
         },
         "node_modules/flatted": {
-            "version": "3.2.4",
-            "resolved": "https://registry.npmjs.org/flatted/-/flatted-3.2.4.tgz",
-            "integrity": "sha512-8/sOawo8tJ4QOBX8YlQBMxL8+RLZfxMQOif9o0KUKTNTjMYElWPE0r/m5VNFxTRd0NSw8qSy8dajrwX4RYI1Hw==",
+            "version": "3.4.2",
+            "resolved": "https://registry.npmjs.org/flatted/-/flatted-3.4.2.tgz",
+            "integrity": "sha512-PjDse7RzhcPkIJwy5t7KPWQSZ9cAbzQXcafsetQoD7sOJRQlGikNbx7yZp2OotDnJyrDcbyRq3Ttb18iYOqkxA==",
             "dev": true
         },
         "node_modules/flush-write-stream": {
@@ -20783,9 +20783,9 @@
             }
         },
         "flatted": {
-            "version": "3.2.4",
-            "resolved": "https://registry.npmjs.org/flatted/-/flatted-3.2.4.tgz",
-            "integrity": "sha512-8/sOawo8tJ4QOBX8YlQBMxL8+RLZfxMQOif9o0KUKTNTjMYElWPE0r/m5VNFxTRd0NSw8qSy8dajrwX4RYI1Hw==",
+            "version": "3.4.2",
+            "resolved": "https://registry.npmjs.org/flatted/-/flatted-3.4.2.tgz",
+            "integrity": "sha512-PjDse7RzhcPkIJwy5t7KPWQSZ9cAbzQXcafsetQoD7sOJRQlGikNbx7yZp2OotDnJyrDcbyRq3Ttb18iYOqkxA==",
             "dev": true
         },
         "flush-write-stream": {

From 5c2c3948e1c8c8a1dfe848104773477e70d0b83b Mon Sep 17 00:00:00 2001
From: Copilot <198982749+Copilot@users.noreply.github.com>
Date: Mon, 23 Mar 2026 08:13:05 -0700
Subject: [PATCH 161/178] Remove debug print statements from unittest adapter
 output (#25854)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

`PROJECT_ROOT_PATH is set, using /... as cwd for execution payload` is
printed to stdout during unittest discovery and execution, leaking into
the Test Results panel.

- Remove `print()` in `python_files/unittestadapter/execution.py`
(execution path)
- Remove `print()` in `python_files/unittestadapter/discovery.py`
(discovery path)

All functional logic (reading the env var, setting `top_level_dir`,
updating the global) is unchanged.

<!-- START COPILOT CODING AGENT TIPS -->
---

💬 We'd love your input! Share your thoughts on Copilot coding agent in
our [2 minute survey](https://gh.io/copilot-coding-agent-survey).

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: eleanorjboyd <26030610+eleanorjboyd@users.noreply.github.com>
---
 python_files/unittestadapter/discovery.py | 3 ---
 python_files/unittestadapter/execution.py | 3 ---
 2 files changed, 6 deletions(-)

diff --git a/python_files/unittestadapter/discovery.py b/python_files/unittestadapter/discovery.py
index b3086d92b102..c864ac76916b 100644
--- a/python_files/unittestadapter/discovery.py
+++ b/python_files/unittestadapter/discovery.py
@@ -146,9 +146,6 @@ def discover_tests(
         project_root_path = os.environ.get("PROJECT_ROOT_PATH")
         if project_root_path:
             top_level_dir = project_root_path
-            print(
-                f"PROJECT_ROOT_PATH is set, using {project_root_path} as top_level_dir for discovery"
-            )
 
         # Perform regular unittest test discovery.
         # Pass project_root_path so the payload's cwd matches the project root.
diff --git a/python_files/unittestadapter/execution.py b/python_files/unittestadapter/execution.py
index e031138b6f75..422f246d3476 100644
--- a/python_files/unittestadapter/execution.py
+++ b/python_files/unittestadapter/execution.py
@@ -373,9 +373,6 @@ def send_run_data(raw_data, test_run_pipe):
             # Update the module-level variable for send_run_data to use
             # pylint: disable=global-statement
             globals()["PROJECT_ROOT_PATH"] = project_root_path
-            print(
-                f"PROJECT_ROOT_PATH is set, using {project_root_path} as cwd for execution payload"
-            )
 
         # Perform regular unittest execution.
         # Pass project_root_path so the payload's cwd matches the project root.

From be7a8e45bc6e7eb221b4ec7dbe7cdd13558e37d6 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Thu, 26 Mar 2026 08:45:29 -0700
Subject: [PATCH 162/178] Bump picomatch from 2.3.1 to 2.3.2 (#25883)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps [picomatch](https://github.com/micromatch/picomatch) from 2.3.1 to
2.3.2.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/micromatch/picomatch/releases">picomatch's
releases</a>.</em></p>
<blockquote>
<h2>2.3.2</h2>
<p>This is a security release fixing several security relevant
issues.</p>
<h2>What's Changed</h2>
<ul>
<li>fix: exception when glob pattern contains constructor by <a
href="https://github.com/Jason3S"><code>@​Jason3S</code></a> in <a
href="https://redirect.github.com/micromatch/picomatch/pull/144">micromatch/picomatch#144</a></li>
<li>Fix for <a
href="https://github.com/micromatch/picomatch/security/advisories/GHSA-c2c7-rcm5-vvqj">CVE-2026-33671</a></li>
<li>Fix for <a
href="https://github.com/micromatch/picomatch/security/advisories/GHSA-3v7f-55p6-f55p">CVE-2026-33672</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/micromatch/picomatch/compare/2.3.1...2.3.2">https://github.com/micromatch/picomatch/compare/2.3.1...2.3.2</a></p>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/micromatch/picomatch/blob/master/CHANGELOG.md">picomatch's
changelog</a>.</em></p>
<blockquote>
<h1>Release history</h1>
<p><strong>All notable changes to this project will be documented in
this file.</strong></p>
<p>The format is based on <a
href="http://keepachangelog.com/en/1.0.0/">Keep a Changelog</a>
and this project adheres to <a
href="http://semver.org/spec/v2.0.0.html">Semantic Versioning</a>.</p>
<!-- raw HTML omitted -->
<ul>
<li>Changelogs are for humans, not machines.</li>
<li>There should be an entry for every single version.</li>
<li>The same types of changes should be grouped.</li>
<li>Versions and sections should be linkable.</li>
<li>The latest version comes first.</li>
<li>The release date of each versions is displayed.</li>
<li>Mention whether you follow Semantic Versioning.</li>
</ul>
<!-- raw HTML omitted -->
<!-- raw HTML omitted -->
<p>Changelog entries are classified using the following labels <em>(from
<a href="http://keepachangelog.com/">keep-a-changelog</a></em>):</p>
<ul>
<li><code>Added</code> for new features.</li>
<li><code>Changed</code> for changes in existing functionality.</li>
<li><code>Deprecated</code> for soon-to-be removed features.</li>
<li><code>Removed</code> for now removed features.</li>
<li><code>Fixed</code> for any bug fixes.</li>
<li><code>Security</code> in case of vulnerabilities.</li>
</ul>
<!-- raw HTML omitted -->
<h2>4.0.0 (2024-02-07)</h2>
<h3>Fixes</h3>
<ul>
<li>Fix bad text values in parse <a
href="https://redirect.github.com/micromatch/picomatch/issues/126">#126</a>,
thanks to <a
href="https://github.com/connor4312"><code>@​connor4312</code></a></li>
</ul>
<h3>Changed</h3>
<ul>
<li>Remove process global to work outside of node <a
href="https://redirect.github.com/micromatch/picomatch/issues/129">#129</a>,
thanks to <a
href="https://github.com/styfle"><code>@​styfle</code></a></li>
<li>Add sideEffects to package.json <a
href="https://redirect.github.com/micromatch/picomatch/issues/128">#128</a>,
thanks to <a
href="https://github.com/frandiox"><code>@​frandiox</code></a></li>
<li>Removed <code>os</code>, make compatible browser environment. See <a
href="https://redirect.github.com/micromatch/picomatch/issues/124">#124</a>,
thanks to <a
href="https://github.com/gwsbhqt"><code>@​gwsbhqt</code></a></li>
</ul>
<h2>3.0.1</h2>
<h3>Fixes</h3>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/micromatch/picomatch/commit/81cba8d4b767cab3cb29d26eb4f691eed75b73b2"><code>81cba8d</code></a>
Publish 2.3.2</li>
<li><a
href="https://github.com/micromatch/picomatch/commit/fc1f6b69006e9435caf8fb40d8aff378bc0b7bce"><code>fc1f6b6</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/micromatch/picomatch/commit/eec17aee5428a7249e9ca5adbb8a0d28fa29619b"><code>eec17ae</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/micromatch/picomatch/commit/78f8ca4362d9e66cadea97b93e292f10096452ed"><code>78f8ca4</code></a>
Merge pull request <a
href="https://redirect.github.com/micromatch/picomatch/issues/156">#156</a>
from micromatch/backport-144</li>
<li><a
href="https://github.com/micromatch/picomatch/commit/3f4f10eaa65bf3a52e8f2999674cd27e11fa3c9b"><code>3f4f10e</code></a>
Merge pull request <a
href="https://redirect.github.com/micromatch/picomatch/issues/144">#144</a>
from Jason3S/jdent-object-properties</li>
<li>See full diff in <a
href="https://github.com/micromatch/picomatch/compare/2.3.1...2.3.2">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=picomatch&package-manager=npm_and_yarn&previous-version=2.3.1&new-version=2.3.2)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
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`@dependabot rebase`.

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You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 package-lock.json | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 9dbea4e9e328..722f895ccec5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11705,9 +11705,9 @@
             "license": "ISC"
         },
         "node_modules/picomatch": {
-            "version": "2.3.1",
-            "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.3.1.tgz",
-            "integrity": "sha512-JU3teHTNjmE2VCGFzuY8EXzCDVwEqB2a8fsIvwaStHhAWJEeVd1o1QD80CU6+ZdEXXSLbSsuLwJjkCBWqRQUVA==",
+            "version": "2.3.2",
+            "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.3.2.tgz",
+            "integrity": "sha512-V7+vQEJ06Z+c5tSye8S+nHUfI51xoXIXjHQ99cQtKUkQqqO1kO/KCJUfZXuB47h/YBlDhah2H3hdUGXn8ie0oA==",
             "dev": true,
             "engines": {
                 "node": ">=8.6"
@@ -24289,9 +24289,9 @@
             "dev": true
         },
         "picomatch": {
-            "version": "2.3.1",
-            "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.3.1.tgz",
-            "integrity": "sha512-JU3teHTNjmE2VCGFzuY8EXzCDVwEqB2a8fsIvwaStHhAWJEeVd1o1QD80CU6+ZdEXXSLbSsuLwJjkCBWqRQUVA==",
+            "version": "2.3.2",
+            "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-2.3.2.tgz",
+            "integrity": "sha512-V7+vQEJ06Z+c5tSye8S+nHUfI51xoXIXjHQ99cQtKUkQqqO1kO/KCJUfZXuB47h/YBlDhah2H3hdUGXn8ie0oA==",
             "dev": true
         },
         "pify": {

From 9ded8032f6a455289113026ed1dca4c5ed81e6e8 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Thu, 26 Mar 2026 09:42:09 -0700
Subject: [PATCH 163/178] Bump tomli from 2.4.0 to 2.4.1 (#25884)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps [tomli](https://github.com/hukkin/tomli) from 2.4.0 to 2.4.1.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/hukkin/tomli/blob/master/CHANGELOG.md">tomli's
changelog</a>.</em></p>
<blockquote>
<h2>2.4.1</h2>
<ul>
<li>Fixed
<ul>
<li>Limit number of parts of a TOML key to address quadratic time
complexity</li>
</ul>
</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/hukkin/tomli/commit/c5f44690c68c5ed29534faa8f9df18882113728c"><code>c5f4469</code></a>
Bump version: 2.4.0 → 2.4.1</li>
<li><a
href="https://github.com/hukkin/tomli/commit/2bcd2627d5fcc262f734eaa730b62c0915d1e0d3"><code>2bcd262</code></a>
Add change log for 2.4.1 and 2.3.1</li>
<li><a
href="https://github.com/hukkin/tomli/commit/e1fdb94bc998377f1c2545c7cd4f70ff2a3fb4e4"><code>e1fdb94</code></a>
Limit number of parts of a key (<a
href="https://redirect.github.com/hukkin/tomli/issues/286">#286</a>)</li>
<li><a
href="https://github.com/hukkin/tomli/commit/c20c49113890c226ffb27a67befe20d14fcf0c73"><code>c20c491</code></a>
pre-commit autoupdate</li>
<li><a
href="https://github.com/hukkin/tomli/commit/920e20b1cf495b63f6d4a6aa3cd5e4ff25f5f5a7"><code>920e20b</code></a>
Update performance benchmark and results</li>
<li><a
href="https://github.com/hukkin/tomli/commit/064e492919b2338def788753b8c981c9131334c0"><code>064e492</code></a>
Merge pull request <a
href="https://redirect.github.com/hukkin/tomli/issues/280">#280</a> from
hukkin/version-2.4.0</li>
<li>See full diff in <a
href="https://github.com/hukkin/tomli/compare/2.4.0...2.4.1">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
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Dependabot will resolve any conflicts with this PR as long as you don't
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---
 requirements.txt | 96 ++++++++++++++++++++++++------------------------
 1 file changed, 48 insertions(+), 48 deletions(-)

diff --git a/requirements.txt b/requirements.txt
index 68850210d58c..e0d5bc987a7c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,54 +12,54 @@ packaging==26.0 \
     --hash=sha256:00243ae351a257117b6a241061796684b084ed1c516a08c48a3f7e147a9d80b4 \
     --hash=sha256:b36f1fef9334a5588b4166f8bcd26a14e521f2b55e6b9de3aaa80d3ff7a37529
     # via -r requirements.in
-tomli==2.4.0 \
-    --hash=sha256:0408e3de5ec77cc7f81960c362543cbbd91ef883e3138e81b729fc3eea5b9729 \
-    --hash=sha256:0dc56fef0e2c1c470aeac5b6ca8cc7b640bb93e92d9803ddaf9ea03e198f5b0b \
-    --hash=sha256:0e0fe8a0b8312acf3a88077a0802565cb09ee34107813bba1c7cd591fa6cfc8d \
-    --hash=sha256:0f2e3955efea4d1cfbcb87bc321e00dc08d2bcb737fd1d5e398af111d86db5df \
-    --hash=sha256:133e93646ec4300d651839d382d63edff11d8978be23da4cc106f5a18b7d0576 \
-    --hash=sha256:1b168f2731796b045128c45982d3a4874057626da0e2ef1fdd722848b741361d \
-    --hash=sha256:1c8a885b370751837c029ef9bc014f27d80840e48bac415f3412e6593bbc18c1 \
-    --hash=sha256:1f776e7d669ebceb01dee46484485f43a4048746235e683bcdffacdf1fb4785a \
-    --hash=sha256:1fb2945cbe303b1419e2706e711b7113da57b7db31ee378d08712d678a34e51e \
-    --hash=sha256:20cedb4ee43278bc4f2fee6cb50daec836959aadaf948db5172e776dd3d993fc \
-    --hash=sha256:20ffd184fb1df76a66e34bd1b36b4a4641bd2b82954befa32fe8163e79f1a702 \
-    --hash=sha256:26ab906a1eb794cd4e103691daa23d95c6919cc2fa9160000ac02370cc9dd3f6 \
-    --hash=sha256:2add28aacc7425117ff6364fe9e06a183bb0251b03f986df0e78e974047571fd \
-    --hash=sha256:2b1e3b80e1d5e52e40e9b924ec43d81570f0e7d09d11081b797bc4692765a3d4 \
-    --hash=sha256:31d556d079d72db7c584c0627ff3a24c5d3fb4f730221d3444f3efb1b2514776 \
-    --hash=sha256:36b9d05b51e65b254ea6c2585b59d2c4cb91c8a3d91d0ed0f17591a29aaea54a \
-    --hash=sha256:39b0b5d1b6dd03684b3fb276407ebed7090bbec989fa55838c98560c01113b66 \
-    --hash=sha256:3cf226acb51d8f1c394c1b310e0e0e61fecdd7adcb78d01e294ac297dd2e7f87 \
-    --hash=sha256:3d895d56bd3f82ddd6faaff993c275efc2ff38e52322ea264122d72729dca2b2 \
-    --hash=sha256:413540dce94673591859c4c6f794dfeaa845e98bf35d72ed59636f869ef9f86f \
-    --hash=sha256:43e685b9b2341681907759cf3a04e14d7104b3580f808cfde1dfdb60ada85475 \
-    --hash=sha256:4cbcb367d44a1f0c2be408758b43e1ffb5308abe0ea222897d6bfc8e8281ef2f \
-    --hash=sha256:551e321c6ba03b55676970b47cb1b73f14a0a4dce6a3e1a9458fd6d921d72e95 \
-    --hash=sha256:5572e41282d5268eb09a697c89a7bee84fae66511f87533a6f88bd2f7b652da9 \
-    --hash=sha256:5aa48d7c2356055feef06a43611fc401a07337d5b006be13a30f6c58f869e3c3 \
-    --hash=sha256:5b5807f3999fb66776dbce568cc9a828544244a8eb84b84b9bafc080c99597b9 \
-    --hash=sha256:5e3f639a7a8f10069d0e15408c0b96a2a828cfdec6fca05296ebcdcc28ca7c76 \
-    --hash=sha256:685306e2cc7da35be4ee914fd34ab801a6acacb061b6a7abca922aaf9ad368da \
-    --hash=sha256:75c2f8bbddf170e8effc98f5e9084a8751f8174ea6ccf4fca5398436e0320bc8 \
-    --hash=sha256:7b438885858efd5be02a9a133caf5812b8776ee0c969fea02c45e8e3f296ba51 \
-    --hash=sha256:7d49c66a7d5e56ac959cb6fc583aff0651094ec071ba9ad43df785abc2320d86 \
-    --hash=sha256:7d6d9a4aee98fac3eab4952ad1d73aee87359452d1c086b5ceb43ed02ddb16b8 \
-    --hash=sha256:84d081fbc252d1b6a982e1870660e7330fb8f90f676f6e78b052ad4e64714bf0 \
-    --hash=sha256:8768715ffc41f0008abe25d808c20c3d990f42b6e2e58305d5da280ae7d1fa3b \
-    --hash=sha256:920b1de295e72887bafa3ad9f7a792f811847d57ea6b1215154030cf131f16b1 \
-    --hash=sha256:9a08144fa4cba33db5255f9b74f0b89888622109bd2776148f2597447f92a94e \
-    --hash=sha256:a26d7ff68dfdb9f87a016ecfd1e1c2bacbe3108f4e0f8bcd2228ef9a766c787d \
-    --hash=sha256:aa89c3f6c277dd275d8e243ad24f3b5e701491a860d5121f2cdd399fbb31fc9c \
-    --hash=sha256:b5ef256a3fd497d4973c11bf142e9ed78b150d36f5773f1ca6088c230ffc5867 \
-    --hash=sha256:b6c78bdf37764092d369722d9946cb65b8767bfa4110f902a1b2542d8d173c8a \
-    --hash=sha256:bbb1b10aa643d973366dc2cb1ad94f99c1726a02343d43cbc011edbfac579e7c \
-    --hash=sha256:c084ad935abe686bd9c898e62a02a19abfc9760b5a79bc29644463eaf2840cb0 \
-    --hash=sha256:c73add4bb52a206fd0c0723432db123c0c75c280cbd67174dd9d2db228ebb1b4 \
-    --hash=sha256:cae9c19ed12d4e8f3ebf46d1a75090e4c0dc16271c5bce1c833ac168f08fb614 \
-    --hash=sha256:d20b797a5c1ad80c516e41bc1fb0443ddb5006e9aaa7bda2d71978346aeb9132 \
-    --hash=sha256:d3d1654e11d724760cdb37a3d7691f0be9db5fbdaef59c9f532aabf87006dbaa \
-    --hash=sha256:d878f2a6707cc9d53a1be1414bbb419e629c3d6e67f69230217bb663e76b5087
+tomli==2.4.1 \
+    --hash=sha256:01f520d4f53ef97964a240a035ec2a869fe1a37dde002b57ebc4417a27ccd853 \
+    --hash=sha256:0d85819802132122da43cb86656f8d1f8c6587d54ae7dcaf30e90533028b49fe \
+    --hash=sha256:136443dbd7e1dee43c68ac2694fde36b2849865fa258d39bf822c10e8068eac5 \
+    --hash=sha256:1d8591993e228b0c930c4bb0db464bdad97b3289fb981255d6c9a41aedc84b2d \
+    --hash=sha256:2190f2e9dd7508d2a90ded5ed369255980a1bcdd58e52f7fe24b8162bf9fedbd \
+    --hash=sha256:2c1c351919aca02858f740c6d33adea0c5deea37f9ecca1cc1ef9e884a619d26 \
+    --hash=sha256:36d2bd2ad5fb9eaddba5226aa02c8ec3fa4f192631e347b3ed28186d43be6b54 \
+    --hash=sha256:3d48a93ee1c9b79c04bb38772ee1b64dcf18ff43085896ea460ca8dec96f35f6 \
+    --hash=sha256:47149d5bd38761ac8be13a84864bf0b7b70bc051806bc3669ab1cbc56216b23c \
+    --hash=sha256:4ab97e64ccda8756376892c53a72bd1f964e519c77236368527f758fbc36a53a \
+    --hash=sha256:4b605484e43cdc43f0954ddae319fb75f04cc10dd80d830540060ee7cd0243cd \
+    --hash=sha256:504aa796fe0569bb43171066009ead363de03675276d2d121ac1a4572397870f \
+    --hash=sha256:51529d40e3ca50046d7606fa99ce3956a617f9b36380da3b7f0dd3dd28e68cb5 \
+    --hash=sha256:52c8ef851d9a240f11a88c003eacb03c31fc1c9c4ec64a99a0f922b93874fda9 \
+    --hash=sha256:559db847dc486944896521f68d8190be1c9e719fced785720d2216fe7022b662 \
+    --hash=sha256:5a881ab208c0baf688221f8cecc5401bd291d67e38a1ac884d6736cbcd8247e9 \
+    --hash=sha256:5cb41aa38891e073ee49d55fbc7839cfdb2bc0e600add13874d048c94aadddd1 \
+    --hash=sha256:5e262d41726bc187e69af7825504c933b6794dc3fbd5945e41a79bb14c31f585 \
+    --hash=sha256:5ee18d9ebdb417e384b58fe414e8d6af9f4e7a0ae761519fb50f721de398dd4e \
+    --hash=sha256:7008df2e7655c495dd12d2a4ad038ff878d4ca4b81fccaf82b714e07eae4402c \
+    --hash=sha256:734e20b57ba95624ecf1841e72b53f6e186355e216e5412de414e3c51e5e3c41 \
+    --hash=sha256:7c7e1a961a0b2f2472c1ac5b69affa0ae1132c39adcb67aba98568702b9cc23f \
+    --hash=sha256:7f86fd587c4ed9dd76f318225e7d9b29cfc5a9d43de44e5754db8d1128487085 \
+    --hash=sha256:7f94b27a62cfad8496c8d2513e1a222dd446f095fca8987fceef261225538a15 \
+    --hash=sha256:88dceee75c2c63af144e456745e10101eb67361050196b0b6af5d717254dddf7 \
+    --hash=sha256:8a650c2dbafa08d42e51ba0b62740dae4ecb9338eefa093aa5c78ceb546fcd5c \
+    --hash=sha256:8d65a2fbf9d2f8352685bc1364177ee3923d6baf5e7f43ea4959d7d8bc326a36 \
+    --hash=sha256:96481a5786729fd470164b47cdb3e0e58062a496f455ee41b4403be77cb5a076 \
+    --hash=sha256:a120733b01c45e9a0c34aeef92bf0cf1d56cfe81ed9d47d562f9ed591a9828ac \
+    --hash=sha256:b1d22e6e9387bf4739fbe23bfa80e93f6b0373a7f1b96c6227c32bef95a4d7a8 \
+    --hash=sha256:b8c198f8c1805dc42708689ed6864951fd2494f924149d3e4bce7710f8eb5232 \
+    --hash=sha256:c2541745709bad0264b7d4705ad453b76ccd191e64aa6f0fc66b69a293a45ece \
+    --hash=sha256:c742f741d58a28940ce01d58f0ab2ea3ced8b12402f162f4d534dfe18ba1cd6a \
+    --hash=sha256:c7f2c7f2b9ca6bdeef8f0fa897f8e05085923eb091721675170254cbc5b02897 \
+    --hash=sha256:d312ef37c91508b0ab2cee7da26ec0b3ed2f03ce12bd87a588d771ae15dcf82d \
+    --hash=sha256:d4d8fe59808a54658fcc0160ecfb1b30f9089906c50b23bcb4c69eddc19ec2b4 \
+    --hash=sha256:da25dc3563bff5965356133435b757a795a17b17d01dbc0f42fb32447ddfd917 \
+    --hash=sha256:eab21f45c7f66c13f2a9e0e1535309cee140182a9cdae1e041d02e47291e8396 \
+    --hash=sha256:eb0dc4e38e6a1fd579e5d50369aa2e10acfc9cace504579b2faabb478e76941a \
+    --hash=sha256:ec9bfaf3ad2df51ace80688143a6a4ebc09a248f6ff781a9945e51937008fcbc \
+    --hash=sha256:ede3e6487c5ef5d28634ba3f31f989030ad6af71edfb0055cbbd14189ff240ba \
+    --hash=sha256:f3c6818a1a86dd6dca7ddcaaf76947d5ba31aecc28cb1b67009a5877c9a64f3f \
+    --hash=sha256:f758f1b9299d059cc3f6546ae2af89670cb1c4d48ea29c3cacc4fe7de3058257 \
+    --hash=sha256:f8f0fc26ec2cc2b965b7a3b87cd19c5c6b8c5e5f436b984e85f486d652285c30 \
+    --hash=sha256:fd0409a3653af6c147209d267a0e4243f0ae46b011aa978b1080359fddc9b6cf \
+    --hash=sha256:ff18e6a727ee0ab0388507b89d1bc6a22b138d1e2fa56d1ad494586d61d2eae9 \
+    --hash=sha256:ff2983983d34813c1aeb0fa89091e76c3a22889ee83ab27c5eeb45100560c049
     # via -r requirements.in
 typing-extensions==4.15.0 \
     --hash=sha256:0cea48d173cc12fa28ecabc3b837ea3cf6f38c6d1136f85cbaaf598984861466 \

From 8efca1f8b15a1408f2ee70e6c626e6ef78ea2475 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Tue, 31 Mar 2026 12:57:14 -0700
Subject: [PATCH 164/178] Bump importlib-metadata from 8.7.1 to 9.0.0 (#25878)

Bumps [importlib-metadata](https://github.com/python/importlib_metadata)
from 8.7.1 to 9.0.0.
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/python/importlib_metadata/blob/main/NEWS.rst">importlib-metadata's
changelog</a>.</em></p>
<blockquote>
<h1>v9.0.0</h1>
<h2>Deprecations and Removals</h2>
<ul>
<li>Added <code>MetadataNotFound</code> (subclass of
<code>FileNotFoundError</code>) and updated
<code>Distribution.metadata</code>/<code>metadata()</code> to raise it
when the metadata files are missing instead of returning
<code>None</code><code>python/cpython#143387</code><a
href="https://redirect.github.com/python/importlib_metadata/issues/532">#532</a>)</li>
</ul>
<h1>v8.9.0</h1>
<h2>Features</h2>
<ul>
<li><code>python/cpython#110937</code><a
href="https://redirect.github.com/python/cpython/issues/140141">python/cpython#140141</a>,
<a
href="https://redirect.github.com/python/cpython/issues/143658">python/cpython#143658</a>)</li>
</ul>
<h1>v8.8.0</h1>
<h2>Features</h2>
<ul>
<li>Removed Python 3.9 compatibility.</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/python/importlib_metadata/commit/a9f883fef337c667a81a987bc0cbc0dbb43b2bfe"><code>a9f883f</code></a>
Finalize</li>
<li><a
href="https://github.com/python/importlib_metadata/commit/9b0dfdfe2e187dca6644007570189aadc6c97a34"><code>9b0dfdf</code></a>
Raise an exception when no metadata file is found (<a
href="https://redirect.github.com/python/importlib_metadata/issues/532">#532</a>)</li>
<li><a
href="https://github.com/python/importlib_metadata/commit/0f2229ca84f20be2ceaaa4c62a276fa9b003f5bc"><code>0f2229c</code></a>
Merge branch 'main' into feature/no-metadata-exception</li>
<li><a
href="https://github.com/python/importlib_metadata/commit/2f4088e490a73ac7f39b86214d2da16d2eb1ff39"><code>2f4088e</code></a>
Remove news fragments about internal details.</li>
<li><a
href="https://github.com/python/importlib_metadata/commit/0ac27203f8044daf634c22f385838122a0707449"><code>0ac2720</code></a>
Add news fragment.</li>
<li><a
href="https://github.com/python/importlib_metadata/commit/a5c2154835facb4a9d0a6f5b3aac1f3d1ff86170"><code>a5c2154</code></a>
Finalize</li>
<li><a
href="https://github.com/python/importlib_metadata/commit/e66e22634f7522e7778b66e8a8b19782a11d4943"><code>e66e226</code></a>
Drop support for EOL Python 3.9 (<a
href="https://redirect.github.com/python/importlib_metadata/issues/530">#530</a>)</li>
<li><a
href="https://github.com/python/importlib_metadata/commit/6027933ae96c9e51dd0b7ce392cb30f6fcae1940"><code>6027933</code></a>
Add news fragment.</li>
<li><a
href="https://github.com/python/importlib_metadata/commit/b89388a53bf857127e0a6860dfcfe2cd69a79ab8"><code>b89388a</code></a>
Import os_helper directly.</li>
<li><a
href="https://github.com/python/importlib_metadata/commit/2dcb761d940b0115b786ab3b6f336af7d94630f4"><code>2dcb761</code></a>
Add uniform exclusions for test.support.</li>
<li>Additional commits viewable in <a
href="https://github.com/python/importlib_metadata/compare/v8.7.1...v9.0.0">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=importlib-metadata&package-manager=pip&previous-version=8.7.1&new-version=9.0.0)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
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`@dependabot rebase`.

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<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
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</details>

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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Copilot <198982749+Copilot@users.noreply.github.com>
Co-authored-by: rzhao271 <7199958+rzhao271@users.noreply.github.com>
---
 .github/actions/build-vsix/action.yml | 4 ++--
 .github/workflows/build.yml           | 2 +-
 .github/workflows/pr-check.yml        | 2 +-
 requirements.txt                      | 6 +++---
 4 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/.github/actions/build-vsix/action.yml b/.github/actions/build-vsix/action.yml
index 40d8d73cb4c6..912ff2c34a74 100644
--- a/.github/actions/build-vsix/action.yml
+++ b/.github/actions/build-vsix/action.yml
@@ -31,10 +31,10 @@ runs:
       uses: dtolnay/rust-toolchain@stable
 
     # Jedi LS depends on dataclasses which is not in the stdlib in Python 3.7.
-    - name: Use Python 3.9 for JediLSP
+    - name: Use Python 3.10 for JediLSP
       uses: actions/setup-python@v6
       with:
-        python-version: 3.9
+        python-version: '3.10'
         cache: 'pip'
         cache-dependency-path: |
           requirements.txt
diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 42447b873b3b..09d019dec4a7 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -174,7 +174,7 @@ jobs:
         # macOS runners are expensive, and we assume that Ubuntu is enough to cover the Unix case.
         os: [ubuntu-latest, windows-latest]
         # Run the tests on the oldest and most recent versions of Python.
-        python: ['3.9', '3.x', '3.13']
+        python: ['3.10', '3.x', '3.13']
 
     steps:
       - name: Checkout
diff --git a/.github/workflows/pr-check.yml b/.github/workflows/pr-check.yml
index 2a0bbb598cb0..c8a6f2dd416e 100644
--- a/.github/workflows/pr-check.yml
+++ b/.github/workflows/pr-check.yml
@@ -157,7 +157,7 @@ jobs:
         # macOS runners are expensive, and we assume that Ubuntu is enough to cover the Unix case.
         os: [ubuntu-latest, windows-latest]
         # Run the tests on the oldest and most recent versions of Python.
-        python: ['3.9', '3.x', '3.13'] # run for 3 pytest versions, most recent stable, oldest version supported and pre-release
+        python: ['3.10', '3.x', '3.13'] # run for 3 pytest versions, most recent stable, oldest version supported and pre-release
         pytest-version: ['pytest', 'pytest@pre-release', 'pytest==6.2.0']
 
     steps:
diff --git a/requirements.txt b/requirements.txt
index e0d5bc987a7c..c6f63fa1b42a 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,8 +1,8 @@
 # This file was autogenerated by uv via the following command:
 #    uv pip compile --generate-hashes requirements.in -o requirements.txt
-importlib-metadata==8.7.1 \
-    --hash=sha256:49fef1ae6440c182052f407c8d34a68f72efc36db9ca90dc0113398f2fdde8bb \
-    --hash=sha256:5a1f80bf1daa489495071efbb095d75a634cf28a8bc299581244063b53176151
+importlib-metadata==9.0.0 \
+    --hash=sha256:2d21d1cc5a017bd0559e36150c21c830ab1dc304dedd1b7ea85d20f45ef3edd7 \
+    --hash=sha256:a4f57ab599e6a2e3016d7595cfd72eb4661a5106e787a95bcc90c7105b831efc
     # via -r requirements.in
 microvenv==2025.0 \
     --hash=sha256:568155ec18af01c89f270d35d123ab803b09672b480c3702d15fd69e9cc5bd1e \

From 83615a7ed627e5b7f8d7e91f501ec6b63b2ffabc Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Tue, 31 Mar 2026 21:21:02 +0000
Subject: [PATCH 165/178] Bump brace-expansion (#25894)

Bumps and
[brace-expansion](https://github.com/juliangruber/brace-expansion).
These dependencies needed to be updated together.
Updates `brace-expansion` from 1.1.12 to 1.1.13
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/juliangruber/brace-expansion/commit/6c353caf23beb9644f858eb3fe38d43a68b82898"><code>6c353ca</code></a>
1.1.13</li>
<li><a
href="https://github.com/juliangruber/brace-expansion/commit/7fd684f89fdde3549563d0a6522226a9189472a2"><code>7fd684f</code></a>
Backport fix for GHSA-f886-m6hf-6m8v (<a
href="https://redirect.github.com/juliangruber/brace-expansion/issues/95">#95</a>)</li>
<li>See full diff in <a
href="https://github.com/juliangruber/brace-expansion/compare/v1.1.12...v1.1.13">compare
view</a></li>
</ul>
</details>
<br />

Updates `brace-expansion` from 2.0.2 to 2.0.3
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/juliangruber/brace-expansion/commit/6c353caf23beb9644f858eb3fe38d43a68b82898"><code>6c353ca</code></a>
1.1.13</li>
<li><a
href="https://github.com/juliangruber/brace-expansion/commit/7fd684f89fdde3549563d0a6522226a9189472a2"><code>7fd684f</code></a>
Backport fix for GHSA-f886-m6hf-6m8v (<a
href="https://redirect.github.com/juliangruber/brace-expansion/issues/95">#95</a>)</li>
<li>See full diff in <a
href="https://github.com/juliangruber/brace-expansion/compare/v1.1.12...v1.1.13">compare
view</a></li>
</ul>
</details>
<br />


Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
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<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
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---
 package-lock.json | 65 ++++++++++++++++++++++-------------------------
 1 file changed, 30 insertions(+), 35 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 722f895ccec5..9b6baf764738 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2201,11 +2201,10 @@
             }
         },
         "node_modules/@typescript-eslint/typescript-estree/node_modules/brace-expansion": {
-            "version": "2.0.2",
-            "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.2.tgz",
-            "integrity": "sha512-Jt0vHyM+jmUBqojB7E1NIYadt0vI0Qxjxd2TErW94wDz+E2LAm5vKMXXwg6ZZBTHPuUlDgQHKXvjGBdfcF1ZDQ==",
+            "version": "2.0.3",
+            "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.3.tgz",
+            "integrity": "sha512-MCV/fYJEbqx68aE58kv2cA/kiky1G8vux3OR6/jbS+jIMe/6fJWa0DTzJU7dqijOWYwHi1t29FlfYI9uytqlpA==",
             "dev": true,
-            "license": "MIT",
             "dependencies": {
                 "balanced-match": "^1.0.0"
             }
@@ -3559,10 +3558,9 @@
             "dev": true
         },
         "node_modules/brace-expansion": {
-            "version": "1.1.12",
-            "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.12.tgz",
-            "integrity": "sha512-9T9UjW3r0UW5c1Q7GTwllptXwhvYmEzFhzMfZ9H7FQWt+uZePjZPjBP/W1ZEyZ1twGWom5/56TF4lPcqjnDHcg==",
-            "license": "MIT",
+            "version": "1.1.13",
+            "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.13.tgz",
+            "integrity": "sha512-9ZLprWS6EENmhEOpjCYW2c8VkmOvckIJZfkr7rBW6dObmfgJ/L1GpSYW5Hpo9lDz4D1+n0Ckz8rU7FwHDQiG/w==",
             "dependencies": {
                 "balanced-match": "^1.0.0",
                 "concat-map": "0.0.1"
@@ -10064,10 +10062,9 @@
             }
         },
         "node_modules/minimatch/node_modules/brace-expansion": {
-            "version": "2.0.2",
-            "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.2.tgz",
-            "integrity": "sha512-Jt0vHyM+jmUBqojB7E1NIYadt0vI0Qxjxd2TErW94wDz+E2LAm5vKMXXwg6ZZBTHPuUlDgQHKXvjGBdfcF1ZDQ==",
-            "license": "MIT",
+            "version": "2.0.3",
+            "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.3.tgz",
+            "integrity": "sha512-MCV/fYJEbqx68aE58kv2cA/kiky1G8vux3OR6/jbS+jIMe/6fJWa0DTzJU7dqijOWYwHi1t29FlfYI9uytqlpA==",
             "dependencies": {
                 "balanced-match": "^1.0.0"
             }
@@ -10200,11 +10197,10 @@
             "dev": true
         },
         "node_modules/mocha/node_modules/brace-expansion": {
-            "version": "2.0.2",
-            "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.2.tgz",
-            "integrity": "sha512-Jt0vHyM+jmUBqojB7E1NIYadt0vI0Qxjxd2TErW94wDz+E2LAm5vKMXXwg6ZZBTHPuUlDgQHKXvjGBdfcF1ZDQ==",
+            "version": "2.0.3",
+            "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.3.tgz",
+            "integrity": "sha512-MCV/fYJEbqx68aE58kv2cA/kiky1G8vux3OR6/jbS+jIMe/6fJWa0DTzJU7dqijOWYwHi1t29FlfYI9uytqlpA==",
             "dev": true,
-            "license": "MIT",
             "dependencies": {
                 "balanced-match": "^1.0.0"
             }
@@ -14701,10 +14697,9 @@
             }
         },
         "node_modules/vscode-languageclient/node_modules/brace-expansion": {
-            "version": "2.0.2",
-            "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.2.tgz",
-            "integrity": "sha512-Jt0vHyM+jmUBqojB7E1NIYadt0vI0Qxjxd2TErW94wDz+E2LAm5vKMXXwg6ZZBTHPuUlDgQHKXvjGBdfcF1ZDQ==",
-            "license": "MIT",
+            "version": "2.0.3",
+            "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.3.tgz",
+            "integrity": "sha512-MCV/fYJEbqx68aE58kv2cA/kiky1G8vux3OR6/jbS+jIMe/6fJWa0DTzJU7dqijOWYwHi1t29FlfYI9uytqlpA==",
             "dependencies": {
                 "balanced-match": "^1.0.0"
             }
@@ -17197,9 +17192,9 @@
             },
             "dependencies": {
                 "brace-expansion": {
-                    "version": "2.0.2",
-                    "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.2.tgz",
-                    "integrity": "sha512-Jt0vHyM+jmUBqojB7E1NIYadt0vI0Qxjxd2TErW94wDz+E2LAm5vKMXXwg6ZZBTHPuUlDgQHKXvjGBdfcF1ZDQ==",
+                    "version": "2.0.3",
+                    "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.3.tgz",
+                    "integrity": "sha512-MCV/fYJEbqx68aE58kv2cA/kiky1G8vux3OR6/jbS+jIMe/6fJWa0DTzJU7dqijOWYwHi1t29FlfYI9uytqlpA==",
                     "dev": true,
                     "requires": {
                         "balanced-match": "^1.0.0"
@@ -18223,9 +18218,9 @@
             "dev": true
         },
         "brace-expansion": {
-            "version": "1.1.12",
-            "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.12.tgz",
-            "integrity": "sha512-9T9UjW3r0UW5c1Q7GTwllptXwhvYmEzFhzMfZ9H7FQWt+uZePjZPjBP/W1ZEyZ1twGWom5/56TF4lPcqjnDHcg==",
+            "version": "1.1.13",
+            "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.13.tgz",
+            "integrity": "sha512-9ZLprWS6EENmhEOpjCYW2c8VkmOvckIJZfkr7rBW6dObmfgJ/L1GpSYW5Hpo9lDz4D1+n0Ckz8rU7FwHDQiG/w==",
             "requires": {
                 "balanced-match": "^1.0.0",
                 "concat-map": "0.0.1"
@@ -23085,9 +23080,9 @@
             },
             "dependencies": {
                 "brace-expansion": {
-                    "version": "2.0.2",
-                    "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.2.tgz",
-                    "integrity": "sha512-Jt0vHyM+jmUBqojB7E1NIYadt0vI0Qxjxd2TErW94wDz+E2LAm5vKMXXwg6ZZBTHPuUlDgQHKXvjGBdfcF1ZDQ==",
+                    "version": "2.0.3",
+                    "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.3.tgz",
+                    "integrity": "sha512-MCV/fYJEbqx68aE58kv2cA/kiky1G8vux3OR6/jbS+jIMe/6fJWa0DTzJU7dqijOWYwHi1t29FlfYI9uytqlpA==",
                     "requires": {
                         "balanced-match": "^1.0.0"
                     }
@@ -23158,9 +23153,9 @@
                     "dev": true
                 },
                 "brace-expansion": {
-                    "version": "2.0.2",
-                    "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.2.tgz",
-                    "integrity": "sha512-Jt0vHyM+jmUBqojB7E1NIYadt0vI0Qxjxd2TErW94wDz+E2LAm5vKMXXwg6ZZBTHPuUlDgQHKXvjGBdfcF1ZDQ==",
+                    "version": "2.0.3",
+                    "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.3.tgz",
+                    "integrity": "sha512-MCV/fYJEbqx68aE58kv2cA/kiky1G8vux3OR6/jbS+jIMe/6fJWa0DTzJU7dqijOWYwHi1t29FlfYI9uytqlpA==",
                     "dev": true,
                     "requires": {
                         "balanced-match": "^1.0.0"
@@ -26508,9 +26503,9 @@
             },
             "dependencies": {
                 "brace-expansion": {
-                    "version": "2.0.2",
-                    "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.2.tgz",
-                    "integrity": "sha512-Jt0vHyM+jmUBqojB7E1NIYadt0vI0Qxjxd2TErW94wDz+E2LAm5vKMXXwg6ZZBTHPuUlDgQHKXvjGBdfcF1ZDQ==",
+                    "version": "2.0.3",
+                    "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.3.tgz",
+                    "integrity": "sha512-MCV/fYJEbqx68aE58kv2cA/kiky1G8vux3OR6/jbS+jIMe/6fJWa0DTzJU7dqijOWYwHi1t29FlfYI9uytqlpA==",
                     "requires": {
                         "balanced-match": "^1.0.0"
                     }

From 223dbaf694ef7a5711ca04dbe5b737d73ab6e3f8 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Fri, 10 Apr 2026 09:18:01 -0700
Subject: [PATCH 166/178] Bump actions/github-script from 8 to 9 (#25906)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps [actions/github-script](https://github.com/actions/github-script)
from 8 to 9.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/actions/github-script/releases">actions/github-script's
releases</a>.</em></p>
<blockquote>
<h2>v9.0.0</h2>
<p><strong>New features:</strong></p>
<ul>
<li><strong><code>getOctokit</code> factory function</strong> —
Available directly in the script context. Create additional
authenticated Octokit clients with different tokens for multi-token
workflows, GitHub App tokens, and cross-org access. See <a
href="https://github.com/actions/github-script#creating-additional-clients-with-getoctokit">Creating
additional clients with <code>getOctokit</code></a> for details and
examples.</li>
<li><strong>Orchestration ID in user-agent</strong> — The
<code>ACTIONS_ORCHESTRATION_ID</code> environment variable is
automatically appended to the user-agent string for request
tracing.</li>
</ul>
<p><strong>Breaking changes:</strong></p>
<ul>
<li><strong><code>require('@actions/github')</code> no longer works in
scripts.</strong> The upgrade to <code>@actions/github</code> v9
(ESM-only) means <code>require('@actions/github')</code> will fail at
runtime. If you previously used patterns like <code>const { getOctokit }
= require('@actions/github')</code> to create secondary clients, use the
new injected <code>getOctokit</code> function instead — it's available
directly in the script context with no imports needed.</li>
<li><code>getOctokit</code> is now an injected function parameter.
Scripts that declare <code>const getOctokit = ...</code> or <code>let
getOctokit = ...</code> will get a <code>SyntaxError</code> because
JavaScript does not allow <code>const</code>/<code>let</code>
redeclaration of function parameters. Use the injected
<code>getOctokit</code> directly, or use <code>var getOctokit =
...</code> if you need to redeclare it.</li>
<li>If your script accesses other <code>@actions/github</code> internals
beyond the standard <code>github</code>/<code>octokit</code> client, you
may need to update those references for v9 compatibility.</li>
</ul>
<h2>What's Changed</h2>
<ul>
<li>Add ACTIONS_ORCHESTRATION_ID to user-agent string by <a
href="https://github.com/Copilot"><code>@​Copilot</code></a> in <a
href="https://redirect.github.com/actions/github-script/pull/695">actions/github-script#695</a></li>
<li>ci: use deployment: false for integration test environments by <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a
href="https://redirect.github.com/actions/github-script/pull/712">actions/github-script#712</a></li>
<li>feat!: add getOctokit to script context, upgrade
<code>@​actions/github</code> v9, <code>@​octokit/core</code> v7, and
related packages by <a
href="https://github.com/salmanmkc"><code>@​salmanmkc</code></a> in <a
href="https://redirect.github.com/actions/github-script/pull/700">actions/github-script#700</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/Copilot"><code>@​Copilot</code></a> made
their first contribution in <a
href="https://redirect.github.com/actions/github-script/pull/695">actions/github-script#695</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/actions/github-script/compare/v8.0.0...v9.0.0">https://github.com/actions/github-script/compare/v8.0.0...v9.0.0</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/actions/github-script/commit/3a2844b7e9c422d3c10d287c895573f7108da1b3"><code>3a2844b</code></a>
Merge pull request <a
href="https://redirect.github.com/actions/github-script/issues/700">#700</a>
from actions/salmanmkc/expose-getoctokit + prepare re...</li>
<li><a
href="https://github.com/actions/github-script/commit/ca10bbdd1a7739de09e99a200c7a59f5d73a4079"><code>ca10bbd</code></a>
fix: use <code>@​octokit/core/</code>types import for v7
compatibility</li>
<li><a
href="https://github.com/actions/github-script/commit/86e48e20ac85c970ed1f96e718fd068173948b7b"><code>86e48e2</code></a>
merge: incorporate main branch changes</li>
<li><a
href="https://github.com/actions/github-script/commit/c1084728b5b935ec4ddc1e4cee877b01797b3ff9"><code>c108472</code></a>
chore: rebuild dist for v9 upgrade and getOctokit factory</li>
<li><a
href="https://github.com/actions/github-script/commit/afff112e4f8b57c718168af75b89ce00bc8d091d"><code>afff112</code></a>
Merge pull request <a
href="https://redirect.github.com/actions/github-script/issues/712">#712</a>
from actions/salmanmkc/deployment-false + fix user-ag...</li>
<li><a
href="https://github.com/actions/github-script/commit/ff8117e5b78c415f814f39ad6998f424fee7b817"><code>ff8117e</code></a>
ci: fix user-agent test to handle orchestration ID</li>
<li><a
href="https://github.com/actions/github-script/commit/81c6b7876079abe10ff715951c9fc7b3e1ab389d"><code>81c6b78</code></a>
ci: use deployment: false to suppress deployment noise from integration
tests</li>
<li><a
href="https://github.com/actions/github-script/commit/3953caf8858d318f37b6cc53a9f5708859b5a7b7"><code>3953caf</code></a>
docs: update README examples from <a
href="https://github.com/v8"><code>@​v8</code></a> to <a
href="https://github.com/v9"><code>@​v9</code></a>, add getOctokit docs
and v9 brea...</li>
<li><a
href="https://github.com/actions/github-script/commit/c17d55b90dcdb3d554d0027a6c180a7adc2daf78"><code>c17d55b</code></a>
ci: add getOctokit integration test job</li>
<li><a
href="https://github.com/actions/github-script/commit/a047196d9a02fe92098771cafbb98c2f1814e408"><code>a047196</code></a>
test: add getOctokit integration tests via callAsyncFunction</li>
<li>Additional commits viewable in <a
href="https://github.com/actions/github-script/compare/v8...v9">compare
view</a></li>
</ul>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=actions/github-script&package-manager=github_actions&previous-version=8&new-version=9)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
that have been made to it
- `@dependabot show <dependency name> ignore conditions` will show all
of the ignore conditions of the specified dependency
- `@dependabot ignore this major version` will close this PR and stop
Dependabot creating any more for this major version (unless you reopen
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</details>

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
---
 .github/workflows/pr-issue-check.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/pr-issue-check.yml b/.github/workflows/pr-issue-check.yml
index 25ac91bbd279..5587227d2848 100644
--- a/.github/workflows/pr-issue-check.yml
+++ b/.github/workflows/pr-issue-check.yml
@@ -17,7 +17,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: 'Ensure PR has an associated issue'
-        uses: actions/github-script@v8
+        uses: actions/github-script@v9
         with:
           script: |
             const labels = context.payload.pull_request.labels.map(label => label.name);

From d5d4e5ed68c22fe52cb2af782e124d274ff56514 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Fri, 10 Apr 2026 09:18:59 -0700
Subject: [PATCH 167/178] Bump lodash from 4.17.23 to 4.18.1 (#25905)

Bumps [lodash](https://github.com/lodash/lodash) from 4.17.23 to 4.18.1.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/lodash/lodash/releases">lodash's
releases</a>.</em></p>
<blockquote>
<h2>4.18.1</h2>
<h2>Bugs</h2>
<p>Fixes a <code>ReferenceError</code> issue in <code>lodash</code>
<code>lodash-es</code> <code>lodash-amd</code> and
<code>lodash.template</code> when using the <code>template</code> and
<code>fromPairs</code> functions from the modular builds. See <a
href="https://redirect.github.com/lodash/lodash/issues/6167#issuecomment-4165269769">lodash/lodash#6167</a></p>
<p>These defects were related to how lodash distributions are built from
the main branch using <a
href="https://github.com/lodash-archive/lodash-cli">https://github.com/lodash-archive/lodash-cli</a>.
When internal dependencies change inside lodash functions, equivalent
updates need to be made to a mapping in the lodash-cli. (hey, it was
ahead of its time once upon a time!). We know this, but we missed it in
the last release. It's the kind of thing that passes in CI, but fails bc
the build is not the same thing you tested.</p>
<p>There is no diff on main for this, but you can see the diffs for each
of the npm packages on their respective branches:</p>
<ul>
<li><code>lodash</code>: <a
href="https://github.com/lodash/lodash/compare/4.18.0-npm...4.18.1-npm">https://github.com/lodash/lodash/compare/4.18.0-npm...4.18.1-npm</a></li>
<li><code>lodash-es</code>: <a
href="https://github.com/lodash/lodash/compare/4.18.0-es...4.18.1-es">https://github.com/lodash/lodash/compare/4.18.0-es...4.18.1-es</a></li>
<li><code>lodash-amd</code>: <a
href="https://github.com/lodash/lodash/compare/4.18.0-amd...4.18.1-amd">https://github.com/lodash/lodash/compare/4.18.0-amd...4.18.1-amd</a></li>
<li><code>lodash.template</code><a
href="https://github.com/lodash/lodash/compare/4.18.0-npm-packages...4.18.1-npm-packages">https://github.com/lodash/lodash/compare/4.18.0-npm-packages...4.18.1-npm-packages</a></li>
</ul>
<h2>4.18.0</h2>
<h2>v4.18.0</h2>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/lodash/lodash/compare/4.17.23...4.18.0">https://github.com/lodash/lodash/compare/4.17.23...4.18.0</a></p>
<h3>Security</h3>
<p><strong><code>_.unset</code> / <code>_.omit</code></strong>: Fixed
prototype pollution via <code>constructor</code>/<code>prototype</code>
path traversal (<a
href="https://github.com/lodash/lodash/security/advisories/GHSA-f23m-r3pf-42rh">GHSA-f23m-r3pf-42rh</a>,
<a
href="https://github.com/lodash/lodash/commit/fe8d32eda854377349a4f922ab7655c8e5df9a0b">fe8d32e</a>).
Previously, array-wrapped path segments and primitive roots could bypass
the existing guards, allowing deletion of properties from built-in
prototypes. Now <code>constructor</code> and <code>prototype</code> are
blocked unconditionally as non-terminal path keys, matching
<code>baseSet</code>. Calls that previously returned <code>true</code>
and deleted the property now return <code>false</code> and leave the
target untouched.</p>
<p><strong><code>_.template</code></strong>: Fixed code injection via
<code>imports</code> keys (<a
href="https://github.com/lodash/lodash/security/advisories/GHSA-r5fr-rjxr-66jc">GHSA-r5fr-rjxr-66jc</a>,
CVE-2026-4800, <a
href="https://github.com/lodash/lodash/commit/879aaa93132d78c2f8d20c60279da9f8b21576d6">879aaa9</a>).
Fixes an incomplete patch for CVE-2021-23337. The <code>variable</code>
option was validated against <code>reForbiddenIdentifierChars</code> but
<code>importsKeys</code> was left unguarded, allowing code injection via
the same <code>Function()</code> constructor sink. <code>imports</code>
keys containing forbidden identifier characters now throw
<code>&quot;Invalid imports option passed into
_.template&quot;</code>.</p>
<h3>Docs</h3>
<ul>
<li>Add security notice for <code>_.template</code> in threat model and
API docs (<a
href="https://redirect.github.com/lodash/lodash/pull/6099">#6099</a>)</li>
<li>Document <code>lower &gt; upper</code> behavior in
<code>_.random</code> (<a
href="https://redirect.github.com/lodash/lodash/pull/6115">#6115</a>)</li>
<li>Fix quotes in <code>_.compact</code> jsdoc (<a
href="https://redirect.github.com/lodash/lodash/pull/6090">#6090</a>)</li>
</ul>
<h3><code>lodash.*</code> modular packages</h3>
<p><a
href="https://redirect.github.com/lodash/lodash/pull/6157">Diff</a></p>
<p>We have also regenerated and published a select number of the
<code>lodash.*</code> modular packages.</p>
<p>These modular packages had fallen out of sync significantly from the
minor/patch updates to lodash. Specifically, we have brought the
following packages up to parity w/ the latest lodash release because
they have had CVEs on them in the past:</p>
<ul>
<li><a
href="https://www.npmjs.com/package/lodash.orderby">lodash.orderby</a></li>
<li><a
href="https://www.npmjs.com/package/lodash.tonumber">lodash.tonumber</a></li>
<li><a
href="https://www.npmjs.com/package/lodash.trim">lodash.trim</a></li>
<li><a
href="https://www.npmjs.com/package/lodash.trimend">lodash.trimend</a></li>
<li><a
href="https://www.npmjs.com/package/lodash.sortedindexby">lodash.sortedindexby</a></li>
<li><a
href="https://www.npmjs.com/package/lodash.zipobjectdeep">lodash.zipobjectdeep</a></li>
<li><a
href="https://www.npmjs.com/package/lodash.unset">lodash.unset</a></li>
<li><a
href="https://www.npmjs.com/package/lodash.omit">lodash.omit</a></li>
<li><a
href="https://www.npmjs.com/package/lodash.template">lodash.template</a></li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/lodash/lodash/commit/cb0b9b9212521c08e3eafe7c8cb0af1b42b6649e"><code>cb0b9b9</code></a>
release(patch): bump main to 4.18.1 (<a
href="https://redirect.github.com/lodash/lodash/issues/6177">#6177</a>)</li>
<li><a
href="https://github.com/lodash/lodash/commit/75535f57883b7225adb96de1cfc1cd4169cfcb51"><code>75535f5</code></a>
chore: prune stale advisory refs (<a
href="https://redirect.github.com/lodash/lodash/issues/6170">#6170</a>)</li>
<li><a
href="https://github.com/lodash/lodash/commit/62e91bc6a39c98d85b9ada8c44d40593deaf82a4"><code>62e91bc</code></a>
docs: remove n_ Node.js &lt; 6 REPL note from README (<a
href="https://redirect.github.com/lodash/lodash/issues/6165">#6165</a>)</li>
<li><a
href="https://github.com/lodash/lodash/commit/59be2de61f8aa9461c7856533b51d31b7d8babc4"><code>59be2de</code></a>
release(minor): bump to 4.18.0 (<a
href="https://redirect.github.com/lodash/lodash/issues/6161">#6161</a>)</li>
<li><a
href="https://github.com/lodash/lodash/commit/af634573030f979194871da7c68f79420992f53d"><code>af63457</code></a>
fix: broken tests for _.template 879aaa9</li>
<li><a
href="https://github.com/lodash/lodash/commit/1073a7693e1727e0cf3641e5f71f75ddcf8de7c0"><code>1073a76</code></a>
fix: linting issues</li>
<li><a
href="https://github.com/lodash/lodash/commit/879aaa93132d78c2f8d20c60279da9f8b21576d6"><code>879aaa9</code></a>
fix: validate imports keys in _.template</li>
<li><a
href="https://github.com/lodash/lodash/commit/fe8d32eda854377349a4f922ab7655c8e5df9a0b"><code>fe8d32e</code></a>
fix: block prototype pollution in baseUnset via constructor/prototype
traversal</li>
<li><a
href="https://github.com/lodash/lodash/commit/18ba0a32f42fd02117f096b032f89c984173462d"><code>18ba0a3</code></a>
refactor(fromPairs): use baseAssignValue for consistent assignment (<a
href="https://redirect.github.com/lodash/lodash/issues/6153">#6153</a>)</li>
<li><a
href="https://github.com/lodash/lodash/commit/b8190803d48d60b8c80ad45d39125f32fa618cb2"><code>b819080</code></a>
ci: add dist sync validation workflow (<a
href="https://redirect.github.com/lodash/lodash/issues/6137">#6137</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/lodash/lodash/compare/4.17.23...4.18.1">compare
view</a></li>
</ul>
</details>
<br />


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---
 package-lock.json | 14 +++++++-------
 package.json      |  2 +-
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 9b6baf764738..6de6edae81c0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -17,7 +17,7 @@
                 "iconv-lite": "^0.6.3",
                 "inversify": "^6.0.2",
                 "jsonc-parser": "^3.0.0",
-                "lodash": "^4.17.23",
+                "lodash": "^4.18.1",
                 "minimatch": "^5.1.8",
                 "named-js-regexp": "^1.3.3",
                 "node-stream-zip": "^1.6.0",
@@ -9658,9 +9658,9 @@
             }
         },
         "node_modules/lodash": {
-            "version": "4.17.23",
-            "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.23.tgz",
-            "integrity": "sha512-LgVTMpQtIopCi79SJeDiP0TfWi5CNEc/L/aRdTh3yIvmZXTnheWpKjSZhnvMl8iXbC1tFg9gdHHDMLoV7CnG+w=="
+            "version": "4.18.1",
+            "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.18.1.tgz",
+            "integrity": "sha512-dMInicTPVE8d1e5otfwmmjlxkZoUpiVLwyeTdUsi/Caj/gfzzblBcCE5sRHV/AsjuCmxWrte2TNGSYuCeCq+0Q=="
         },
         "node_modules/lodash.flattendeep": {
             "version": "4.4.0",
@@ -22757,9 +22757,9 @@
             }
         },
         "lodash": {
-            "version": "4.17.23",
-            "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.23.tgz",
-            "integrity": "sha512-LgVTMpQtIopCi79SJeDiP0TfWi5CNEc/L/aRdTh3yIvmZXTnheWpKjSZhnvMl8iXbC1tFg9gdHHDMLoV7CnG+w=="
+            "version": "4.18.1",
+            "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.18.1.tgz",
+            "integrity": "sha512-dMInicTPVE8d1e5otfwmmjlxkZoUpiVLwyeTdUsi/Caj/gfzzblBcCE5sRHV/AsjuCmxWrte2TNGSYuCeCq+0Q=="
         },
         "lodash.flattendeep": {
             "version": "4.4.0",
diff --git a/package.json b/package.json
index 2a685fbc158e..2a27cddc0976 100644
--- a/package.json
+++ b/package.json
@@ -1713,7 +1713,7 @@
         "iconv-lite": "^0.6.3",
         "inversify": "^6.0.2",
         "jsonc-parser": "^3.0.0",
-        "lodash": "^4.17.23",
+        "lodash": "^4.18.1",
         "minimatch": "^5.1.8",
         "named-js-regexp": "^1.3.3",
         "node-stream-zip": "^1.6.0",

From 6bf57bdd6d02b293b7c671c34e8e9a35a6aa6e0b Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Wed, 15 Apr 2026 08:21:12 -0700
Subject: [PATCH 168/178] Bump packaging from 26.0 to 26.1 (#25912)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps [packaging](https://github.com/pypa/packaging) from 26.0 to 26.1.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/pypa/packaging/releases">packaging's
releases</a>.</em></p>
<blockquote>
<h2>26.1</h2>
<p>Features:</p>
<ul>
<li><del>PEP 783: add handling for Emscripten wheel tags by <a
href="https://github.com/hoodmane"><code>@​hoodmane</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/804">pypa/packaging#804</a></del>
(old name used in implementation, will be fixed in next release)</li>
<li>PEP 803: add handling for the <code>abi3.abi3t</code> free-threading
tag by <a
href="https://github.com/ngoldbaum"><code>@​ngoldbaum</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1099">pypa/packaging#1099</a></li>
<li>PEP 723: add <code>packaging.dependency_groups</code> module, based
on the <code>dependency-groups</code> package by <a
href="https://github.com/sirosen"><code>@​sirosen</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1065">pypa/packaging#1065</a></li>
<li>Add the <code>packaging.direct_url</code> module by <a
href="https://github.com/sbidoul"><code>@​sbidoul</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/944">pypa/packaging#944</a></li>
<li>Add the <code>packaging.errors</code> module by <a
href="https://github.com/henryiii"><code>@​henryiii</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1071">pypa/packaging#1071</a></li>
<li>Add <code>SpecifierSet.is_unsatisfiable</code> using ranges (new
internals that will be expanded in future versions) by <a
href="https://github.com/notatallshaw"><code>@​notatallshaw</code></a>
in <a
href="https://redirect.github.com/pypa/packaging/pull/1119">pypa/packaging#1119</a></li>
<li>Add <code>create_compatible_tags_selector</code> to select
compatible tags by <a
href="https://github.com/sbidoul"><code>@​sbidoul</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1110">pypa/packaging#1110</a></li>
<li>Add a <code>key</code> argument to
<code>SpecifierSet.filter()</code> by <a
href="https://github.com/frostming"><code>@​frostming</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1068">pypa/packaging#1068</a></li>
<li>Support <code>&amp;</code> and <code>|</code> for
<code>Marker</code>'s by <a
href="https://github.com/henryiii"><code>@​henryiii</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1146">pypa/packaging#1146</a></li>
<li>Normalize <code>Version.__replace__</code> and add
<code>Version.from_parts</code> by <a
href="https://github.com/henryiii"><code>@​henryiii</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1078">pypa/packaging#1078</a></li>
<li>Add an option to validate compressed tag set sort order in
<code>parse_wheel_filename</code> by <a
href="https://github.com/r266-tech"><code>@​r266-tech</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1150">pypa/packaging#1150</a></li>
</ul>
<p>Behavior adaptations:</p>
<ul>
<li>Narrow exclusion of pre-releases for <code>&lt;V.postN</code> to
match spec by <a
href="https://github.com/notatallshaw"><code>@​notatallshaw</code></a>
in <a
href="https://redirect.github.com/pypa/packaging/pull/1140">pypa/packaging#1140</a></li>
<li>Narrow exclusion of post-releases for <code>&gt;V</code> to match
spec by <a
href="https://github.com/notatallshaw"><code>@​notatallshaw</code></a>
in <a
href="https://redirect.github.com/pypa/packaging/pull/1141">pypa/packaging#1141</a></li>
<li>Rename <code>format_full_version</code> to
<code>_format_full_version</code> to make it visibly private by <a
href="https://github.com/r266-tech"><code>@​r266-tech</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1125">pypa/packaging#1125</a></li>
<li>Restrict local version to ASCII by <a
href="https://github.com/henryiii"><code>@​henryiii</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1102">pypa/packaging#1102</a></li>
</ul>
<p>Pylock (PEP 751) updates:</p>
<ul>
<li>Add pylock <code>select</code> function by <a
href="https://github.com/sbidoul"><code>@​sbidoul</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1092">pypa/packaging#1092</a></li>
<li>Document pylock <code>select()</code> method and
<code>PylockSelectError</code> by <a
href="https://github.com/r266-tech"><code>@​r266-tech</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1153">pypa/packaging#1153</a></li>
<li>Add <code>filename</code> property to <code>PackageSdist</code> and
<code>PackageWheel</code>, more validation by <a
href="https://github.com/sbidoul"><code>@​sbidoul</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1095">pypa/packaging#1095</a></li>
<li>Give preference to path over url by <a
href="https://github.com/sbidoul"><code>@​sbidoul</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1128">pypa/packaging#1128</a></li>
<li>Validate name/version consistency in file names by <a
href="https://github.com/sbidoul"><code>@​sbidoul</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1114">pypa/packaging#1114</a></li>
</ul>
<p>Fixes:</p>
<ul>
<li>Fix <code>&gt;</code> comparison for versions with dev+local
segments by <a
href="https://github.com/veeceey"><code>@​veeceey</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1097">pypa/packaging#1097</a></li>
<li>Fix incorrect self-comparison for <code>InfinityType</code> and
<code>NegativeInfinityType</code> by <a
href="https://github.com/bysiber"><code>@​bysiber</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1093">pypa/packaging#1093</a></li>
<li>Canonicalize when deduplicating specifiers in
<code>SpecifierSet</code> by <a
href="https://github.com/notatallshaw"><code>@​notatallshaw</code></a>
in <a
href="https://redirect.github.com/pypa/packaging/pull/1109">pypa/packaging#1109</a></li>
<li>Fix charset error message formatting by <a
href="https://github.com/notatallshaw"><code>@​notatallshaw</code></a>
in <a
href="https://redirect.github.com/pypa/packaging/pull/1121">pypa/packaging#1121</a></li>
<li>Handle the <code>key</code> parameter in
<code>SpecifierSet.filter</code> when specifiers are empty and
prerelease is <code>False</code> by <a
href="https://github.com/notatallshaw"><code>@​notatallshaw</code></a>
in <a
href="https://redirect.github.com/pypa/packaging/pull/1096">pypa/packaging#1096</a></li>
<li>Standardize inner components of <code>repr</code> output by <a
href="https://github.com/henryiii"><code>@​henryiii</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1090">pypa/packaging#1090</a></li>
<li><code>Specifier</code>'s <code>===</code> uses original string, not
normalized, when available by <a
href="https://github.com/notatallshaw"><code>@​notatallshaw</code></a>
in <a
href="https://redirect.github.com/pypa/packaging/pull/1124">pypa/packaging#1124</a></li>
<li>Propagate int-max-str-digits <code>ValueError</code> by <a
href="https://github.com/notatallshaw"><code>@​notatallshaw</code></a>
in <a
href="https://redirect.github.com/pypa/packaging/pull/1155">pypa/packaging#1155</a></li>
</ul>
<p>Performance:</p>
<ul>
<li>Add fast path for parsing simple versions (digits and dots only) by
<a
href="https://github.com/notatallshaw"><code>@​notatallshaw</code></a>
in <a
href="https://redirect.github.com/pypa/packaging/pull/1082">pypa/packaging#1082</a></li>
<li>Add fast path for <code>Version</code> to <code>Version</code>
comparison by skipping <code>_key</code> property by <a
href="https://github.com/notatallshaw"><code>@​notatallshaw</code></a>
in <a
href="https://redirect.github.com/pypa/packaging/pull/1083">pypa/packaging#1083</a></li>
<li>Cache <code>Version</code> hash value in dedicated slot by <a
href="https://github.com/notatallshaw"><code>@​notatallshaw</code></a>
in <a
href="https://redirect.github.com/pypa/packaging/pull/1118">pypa/packaging#1118</a></li>
<li>Overhaul <code>_cmpkey</code> to remove use of custom objects by <a
href="https://github.com/notatallshaw"><code>@​notatallshaw</code></a>
in <a
href="https://redirect.github.com/pypa/packaging/pull/1116">pypa/packaging#1116</a></li>
<li>Skip <code>__replace__</code> in Specifier comparison if not needed
by <a
href="https://github.com/notatallshaw"><code>@​notatallshaw</code></a>
in <a
href="https://redirect.github.com/pypa/packaging/pull/1081">pypa/packaging#1081</a></li>
<li><code>SpecifierSet</code> use <code>tuple</code> instead of
<code>frozenset</code> for <code>_specs</code> by <a
href="https://github.com/notatallshaw"><code>@​notatallshaw</code></a>
in <a
href="https://redirect.github.com/pypa/packaging/pull/1108">pypa/packaging#1108</a></li>
<li>Speed up complex <code>SpecifierSet</code> filtering by implementing
cost-based ordering by <a
href="https://github.com/notatallshaw"><code>@​notatallshaw</code></a>
in <a
href="https://redirect.github.com/pypa/packaging/pull/1105">pypa/packaging#1105</a></li>
</ul>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/pypa/packaging/blob/main/CHANGELOG.rst">packaging's
changelog</a>.</em></p>
<blockquote>
<p>26.1 - 2026-04-14</p>
<pre><code>
Features:
<ul>
<li>PEP 783: add handling for Emscripten wheel tags in
(:pull:<code>804</code>)</li>
<li>PEP 803: add handling for the <code>abi3.abi3t</code> free-threading
tag in (:pull:<code>1099</code>)</li>
<li>PEP 723: add <code>packaging.dependency_groups</code> module, based
on the <code>dependency-groups</code> package in
(:pull:<code>1065</code>)</li>
<li>Add the <code>packaging.direct_url</code> module in
(:pull:<code>944</code>)</li>
<li>Add the <code>packaging.errors</code> module in
(:pull:<code>1071</code>)</li>
<li>Add <code>SpecifierSet.is_unsatisfiable</code> using ranges (new
internals that will be expanded in future versions) in
(:pull:<code>1119</code>)</li>
<li>Add <code>create_compatible_tags_selector</code> to select
compatible tags in (:pull:<code>1110</code>)</li>
<li>Add a <code>key</code> argument to
<code>SpecifierSet.filter()</code> in (:pull:<code>1068</code>)</li>
<li>Support <code>&amp;amp;</code> and <code>|</code> for
<code>Marker</code>'s in (:pull:<code>1146</code>)</li>
<li>Normalize <code>Version.__replace__</code> and add
<code>Version.from_parts</code> in (:pull:<code>1078</code>)</li>
<li>Add an option to validate compressed tag set sort order in
<code>parse_wheel_filename</code> in (:pull:<code>1150</code>)</li>
</ul>
<p>Behavior adaptations:</p>
<ul>
<li>Narrow exclusion of pre-releases for <code>&amp;lt;V.postN</code> to
match spec in (:pull:<code>1140</code>)</li>
<li>Narrow exclusion of post-releases for <code>&amp;gt;V</code> to
match spec in (:pull:<code>1141</code>)</li>
<li>Rename <code>format_full_version</code> to
<code>_format_full_version</code> to make it visibly private in
(:pull:<code>1125</code>)</li>
<li>Restrict local version to ASCII in (:pull:<code>1102</code>)</li>
</ul>
<p>Pylock (PEP 751) updates:</p>
<ul>
<li>Add pylock <code>select</code> function in
(:pull:<code>1092</code>)</li>
<li>Document pylock <code>select()</code> method and
<code>PylockSelectError</code> in (:pull:<code>1153</code>)</li>
<li>Add <code>filename</code> property to <code>PackageSdist</code> and
<code>PackageWheel</code>, more validation in
(:pull:<code>1095</code>)</li>
<li>Give preference to path over url in (:pull:<code>1128</code>)</li>
<li>Validate name/version consistency in file names in
(:pull:<code>1114</code>)</li>
</ul>
<p>Fixes:</p>
<ul>
<li>Fix <code>&amp;gt;</code> comparison for versions with dev+local
segments in (:pull:<code>1097</code>)</li>
<li>Fix incorrect self-comparison for <code>InfinityType</code> and
<code>NegativeInfinityType</code> in (:pull:<code>1093</code>)</li>
<li>Canonicalize when deduplicating specifiers in
<code>SpecifierSet</code> in (:pull:<code>1109</code>)</li>
<li>Fix charset error message formatting in
(:pull:<code>1121</code>)</li>
<li>Handle the <code>key</code> parameter in
<code>SpecifierSet.filter</code> when specifiers are empty and
prerelease is <code>False</code> in (:pull:<code>1096</code>)</li>
<li>Standardize inner components of <code>repr</code> output in
(:pull:<code>1090</code>)</li>
<li><code>Specifier</code>'s <code>===</code> uses original string, not
normalized, when available in (:pull:<code>1124</code>)</li>
<li>Propagate int-max-str-digits <code>ValueError</code> in
(:pull:<code>1155</code>)</li>
</ul>
<p>Performance:</p>
<ul>
<li>Add fast path for parsing simple versions (digits and dots only) in
(:pull:<code>1082</code>)</li>
<li>Add fast path for <code>Version</code> to <code>Version</code>
comparison by skipping <code>_key</code> property in
(:pull:<code>1083</code>)</li>
<li>Cache <code>Version</code> hash value in dedicated slot in
(:pull:<code>1118</code>)</li>
<li>Overhaul <code>_cmpkey</code> to remove use of custom objects in
(:pull:<code>1116</code>)</li>
<li>Skip <code>__replace__</code> in Specifier comparison if not needed
in (:pull:<code>1081</code>)<br />
&lt;/tr&gt;&lt;/table&gt;<br />
</code></pre></li>
</ul>
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/pypa/packaging/commit/c1a88a3e035e8bfe47dbc957f4a2493e8a7b4f3c"><code>c1a88a3</code></a>
Bump for release</li>
<li><a
href="https://github.com/pypa/packaging/commit/702c25ecc297054f9597acda987a75dd6833acf5"><code>702c25e</code></a>
docs: update changelog for 26.1 (<a
href="https://redirect.github.com/pypa/packaging/issues/1156">#1156</a>)</li>
<li><a
href="https://github.com/pypa/packaging/commit/3f4f5d46808f51709aba8341d4121f20752b3235"><code>3f4f5d4</code></a>
Implement <code>is_unsatisfiable</code> on <code>SpecifierSet</code>
using ranges (<a
href="https://redirect.github.com/pypa/packaging/issues/1119">#1119</a>)</li>
<li><a
href="https://github.com/pypa/packaging/commit/06c6555f44f0f7b84459c876375c5b1d52ee7fef"><code>06c6555</code></a>
Propagate int-max-str-digits ValueError (<a
href="https://redirect.github.com/pypa/packaging/issues/1155">#1155</a>)</li>
<li><a
href="https://github.com/pypa/packaging/commit/905c90c1eb8c77dede11899194ca4b0f5eaf188d"><code>905c90c</code></a>
feat: option to validate compressed tag set sort order in
`parse_wheel_filena...</li>
<li><a
href="https://github.com/pypa/packaging/commit/af0026cff97a8f28d165d6ac4afb58b2cdc8ffc5"><code>af0026c</code></a>
docs(pylock): document select() method and PylockSelectError (<a
href="https://redirect.github.com/pypa/packaging/issues/1153">#1153</a>)</li>
<li><a
href="https://github.com/pypa/packaging/commit/668da8662a112036e4850b68980790cb2d10dae9"><code>668da86</code></a>
Rename format_full_version to _format_full_version to make it visibly
private...</li>
<li><a
href="https://github.com/pypa/packaging/commit/f294d529e2634798a98fd9cee6708307a5c1792c"><code>f294d52</code></a>
tests: do not reload the tags module (<a
href="https://redirect.github.com/pypa/packaging/issues/1152">#1152</a>)</li>
<li><a
href="https://github.com/pypa/packaging/commit/2c6c7dfa2d406e44b91f3f8d26eeed72437c9435"><code>2c6c7df</code></a>
feat: add handling for Emscripten wheels tags per PEP 783 (<a
href="https://redirect.github.com/pypa/packaging/issues/804">#804</a>)</li>
<li><a
href="https://github.com/pypa/packaging/commit/6762eea4de40da02c119d02cc77c907c6b446b86"><code>6762eea</code></a>
docs(markers): document &amp; and | operators for combining Marker
objects (<a
href="https://redirect.github.com/pypa/packaging/issues/1151">#1151</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/pypa/packaging/compare/26.0...26.1">compare
view</a></li>
</ul>
</details>
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---
 requirements.txt | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/requirements.txt b/requirements.txt
index c6f63fa1b42a..5d325361bd4c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,9 +8,9 @@ microvenv==2025.0 \
     --hash=sha256:568155ec18af01c89f270d35d123ab803b09672b480c3702d15fd69e9cc5bd1e \
     --hash=sha256:8a2568a8390a4ffb5af2f05e7642454e03b887e582d192b6316326974eab5d0f
     # via -r requirements.in
-packaging==26.0 \
-    --hash=sha256:00243ae351a257117b6a241061796684b084ed1c516a08c48a3f7e147a9d80b4 \
-    --hash=sha256:b36f1fef9334a5588b4166f8bcd26a14e521f2b55e6b9de3aaa80d3ff7a37529
+packaging==26.1 \
+    --hash=sha256:5d9c0669c6285e491e0ced2eee587eaf67b670d94a19e94e3984a481aba6802f \
+    --hash=sha256:f042152b681c4bfac5cae2742a55e103d27ab2ec0f3d88037136b6bfe7c9c5de
     # via -r requirements.in
 tomli==2.4.1 \
     --hash=sha256:01f520d4f53ef97964a240a035ec2a869fe1a37dde002b57ebc4417a27ccd853 \

From 437afb55c435fee1a62c760eb699855a3341847d Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Wed, 15 Apr 2026 15:20:06 -0700
Subject: [PATCH 169/178] Refactor environment extension activation checks to
 use shouldEnvExtHandleActivation function (#25895)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Problem
Fixes #1284

When the Python Environments extension (ms-python.vscode-python-envs) is
installed but python.useEnvironmentsExtension is not explicitly set,
users see two interpreter status bar items — one from each extension.

Root Cause
The interpreter display in InterpreterDisplay used useEnvExtension() to
decide whether to create/show its status bar. That function requires
python.useEnvironmentsExtension to be explicitly true (defaults to
false). Meanwhile, the envs extension activates whenever the setting is
not explicitly false — treating unset/undefined as enabled.
---
 src/client/interpreter/display/index.ts    | 6 +++---
 src/test/interpreters/display.unit.test.ts | 6 +++---
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/src/client/interpreter/display/index.ts b/src/client/interpreter/display/index.ts
index ebe7fc359cac..3a602093d4f9 100644
--- a/src/client/interpreter/display/index.ts
+++ b/src/client/interpreter/display/index.ts
@@ -24,7 +24,7 @@ import {
     IInterpreterService,
     IInterpreterStatusbarVisibilityFilter,
 } from '../contracts';
-import { useEnvExtension } from '../../envExt/api.internal';
+import { shouldEnvExtHandleActivation } from '../../envExt/api.internal';
 
 /**
  * Based on https://github.com/microsoft/vscode-python/issues/18040#issuecomment-992567670.
@@ -68,7 +68,7 @@ export class InterpreterDisplay implements IInterpreterDisplay, IExtensionSingle
     }
 
     public async activate(): Promise<void> {
-        if (useEnvExtension()) {
+        if (shouldEnvExtHandleActivation()) {
             return;
         }
         const application = this.serviceContainer.get<IApplicationShell>(IApplicationShell);
@@ -115,7 +115,7 @@ export class InterpreterDisplay implements IInterpreterDisplay, IExtensionSingle
         }
     }
     private async updateDisplay(workspaceFolder?: Uri) {
-        if (useEnvExtension()) {
+        if (shouldEnvExtHandleActivation()) {
             this.statusBar?.hide();
             this.languageStatus?.dispose();
             this.languageStatus = undefined;
diff --git a/src/test/interpreters/display.unit.test.ts b/src/test/interpreters/display.unit.test.ts
index 7d53fbfc0561..d9be806ff709 100644
--- a/src/test/interpreters/display.unit.test.ts
+++ b/src/test/interpreters/display.unit.test.ts
@@ -59,7 +59,7 @@ suite('Interpreters Display', () => {
     let pathUtils: TypeMoq.IMock<IPathUtils>;
     let languageStatusItem: TypeMoq.IMock<LanguageStatusItem>;
     let traceLogStub: sinon.SinonStub;
-    let useEnvExtensionStub: sinon.SinonStub;
+    let shouldEnvExtHandleActivationStub: sinon.SinonStub;
     async function createInterpreterDisplay(filters: IInterpreterStatusbarVisibilityFilter[] = []) {
         interpreterDisplay = new InterpreterDisplay(serviceContainer.object);
         try {
@@ -69,8 +69,8 @@ suite('Interpreters Display', () => {
     }
 
     async function setupMocks(useLanguageStatus: boolean) {
-        useEnvExtensionStub = sinon.stub(extapi, 'useEnvExtension');
-        useEnvExtensionStub.returns(false);
+        shouldEnvExtHandleActivationStub = sinon.stub(extapi, 'shouldEnvExtHandleActivation');
+        shouldEnvExtHandleActivationStub.returns(false);
 
         serviceContainer = TypeMoq.Mock.ofType<IServiceContainer>();
         workspaceService = TypeMoq.Mock.ofType<IWorkspaceService>();

From f3fab838edbf5e0b1c82374b377845d2fa1a4d57 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Thu, 23 Apr 2026 09:06:25 -0700
Subject: [PATCH 170/178] Remove unused testresources import and related
 load_tests function from unittestadapter (#25928)

goal to resolve CI issues

Keeps coverage of the testscenarios-based dynamic test-ID pattern (which
was the whole point of this fixture). Declaring testtools explicitly
replaces the fragile transitive dependency that was causing the CI
import failure described in test-scenarios-ci-failure.md.

---------

Co-authored-by: Copilot <copilot@github.com>
---
 build/test-requirements.txt                    |  2 +-
 .../.data/test_scenarios/tests/__init__.py     | 13 -------------
 .../.data/test_scenarios/tests/test_scene.py   | 18 ++++++++++++++++--
 3 files changed, 17 insertions(+), 16 deletions(-)

diff --git a/build/test-requirements.txt b/build/test-requirements.txt
index 6d64ff72ac7f..ff9afdfc8a2e 100644
--- a/build/test-requirements.txt
+++ b/build/test-requirements.txt
@@ -12,8 +12,8 @@ flask
 fastapi
 uvicorn
 django
-testresources
 testscenarios
+testtools
 
 # Integrated TensorBoard tests
 tensorboard
diff --git a/python_files/tests/unittestadapter/.data/test_scenarios/tests/__init__.py b/python_files/tests/unittestadapter/.data/test_scenarios/tests/__init__.py
index 6b8fbbc579ab..5b7f7a925cc0 100644
--- a/python_files/tests/unittestadapter/.data/test_scenarios/tests/__init__.py
+++ b/python_files/tests/unittestadapter/.data/test_scenarios/tests/__init__.py
@@ -1,15 +1,2 @@
 # Copyright (c) Microsoft Corporation. All rights reserved.
 # Licensed under the MIT License.
-
-import os
-
-import testresources
-from testscenarios import generate_scenarios
-
-def load_tests(loader, tests, pattern):
-    this_dir = os.path.dirname(__file__)
-    mytests = loader.discover(start_dir=this_dir, pattern=pattern)
-    result = testresources.OptimisingTestSuite()
-    result.addTests(generate_scenarios(mytests))
-    result.addTests(generate_scenarios(tests))
-    return result
diff --git a/python_files/tests/unittestadapter/.data/test_scenarios/tests/test_scene.py b/python_files/tests/unittestadapter/.data/test_scenarios/tests/test_scene.py
index 1f66cbde4ef7..35c1c7002319 100644
--- a/python_files/tests/unittestadapter/.data/test_scenarios/tests/test_scene.py
+++ b/python_files/tests/unittestadapter/.data/test_scenarios/tests/test_scene.py
@@ -1,13 +1,27 @@
 # Copyright (c) Microsoft Corporation. All rights reserved.
 # Licensed under the MIT License.
 
-from testscenarios import TestWithScenarios
+import unittest
+
+from testscenarios import TestWithScenarios, generate_scenarios
+
+
+def load_tests(loader, standard_tests, pattern):  # noqa: ARG001
+    # Pre-expand ``TestWithScenarios`` scenarios at load time so individual
+    # scenario-multiplied test IDs (e.g. ``test_operations(add)``) can be
+    # resolved by ``unittest.TestLoader.loadTestsFromName``. Without this,
+    # ``TestWithScenarios`` only multiplies scenarios at ``run()`` time and
+    # loading a specific scenario by name raises ``AttributeError``.
+    result = unittest.TestSuite()
+    result.addTests(generate_scenarios(standard_tests))
+    return result
+
 
 class TestMathOperations(TestWithScenarios):
     scenarios = [
         ('add', {'test_id': 'test_add', 'a': 5, 'b': 3, 'expected': 8}),
         ('subtract', {'test_id': 'test_subtract', 'a': 5, 'b': 3, 'expected': 2}),
-        ('multiply', {'test_id': 'test_multiply', 'a': 5, 'b': 3, 'expected': 15})
+        ('multiply', {'test_id': 'test_multiply', 'a': 5, 'b': 3, 'expected': 15}),
     ]
     a: int = 0
     b: int = 0

From 957444f54d0d716f0c86a26d3e57e40c47f02141 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Thu, 23 Apr 2026 10:10:46 -0700
Subject: [PATCH 171/178] Update telemetry event name from "invokeTool" to
 "INVOKE_TOOL" for consistency (#25926)

---
 src/client/telemetry/index.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/client/telemetry/index.ts b/src/client/telemetry/index.ts
index 738c5f8a2776..7fd586215145 100644
--- a/src/client/telemetry/index.ts
+++ b/src/client/telemetry/index.ts
@@ -1988,7 +1988,7 @@ export interface IEventNamePropertyMapping {
      * Telemetry event sent when invoking a Tool
      */
     /* __GDPR__
-       "invokeTool" : {
+       "INVOKE_TOOL" : {
            "duration" : { "classification": "SystemMetaData", "purpose": "FeatureInsight", "isMeasurement": true, "owner": "donjayamanne" },
            "toolName" : { "classification": "SystemMetaData", "purpose": "FeatureInsight", "owner": "donjayamanne" },
             "failed": {"classification":"SystemMetaData","purpose":"FeatureInsight","comment":"Whether there was a failure. Common to most of the events.", "owner": "donjayamanne" },

From a8a4f70e24531b17b436559cffe7576fad1c8cfe Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Thu, 23 Apr 2026 10:23:26 -0700
Subject: [PATCH 172/178] Add telemetry properties for environment resolution
 and package installation (#25927)

Co-authored-by: Copilot <copilot@github.com>

1. Add `duration` to `INVOKE_TOOL`
2. Add `resolveOutcome` to `configure_python_environment`
3. Add `envType` to all tools that resolve an environment
4. Add `packageCount` and `installerType` to `install_python_packages`
5. Add `responsePackageCount` to `get_python_environment_details`

---------

Co-authored-by: Copilot <copilot@github.com>
---
 src/client/chat/baseTool.ts               |  7 +++++-
 src/client/chat/configurePythonEnvTool.ts | 10 ++++++++-
 src/client/chat/getExecutableTool.ts      |  7 ++++++
 src/client/chat/getPythonEnvTool.ts       | 14 +++++++++++-
 src/client/chat/installPackagesTool.ts    |  4 ++++
 src/client/chat/utils.ts                  |  4 ++++
 src/client/telemetry/index.ts             | 27 ++++++++++++++++++++++-
 7 files changed, 69 insertions(+), 4 deletions(-)

diff --git a/src/client/chat/baseTool.ts b/src/client/chat/baseTool.ts
index 2eedbbe226e3..d8e2e1d60d42 100644
--- a/src/client/chat/baseTool.ts
+++ b/src/client/chat/baseTool.ts
@@ -16,8 +16,10 @@ import { IResourceReference, isCancellationError, resolveFilePath } from './util
 import { ErrorWithTelemetrySafeReason } from '../common/errors/errorUtils';
 import { sendTelemetryEvent } from '../telemetry';
 import { EventName } from '../telemetry/constants';
+import { StopWatch } from '../common/utils/stopWatch';
 
 export abstract class BaseTool<T extends IResourceReference> implements LanguageModelTool<T> {
+    protected extraTelemetryProperties: Record<string, string> = {};
     constructor(private readonly toolName: string) {}
 
     async invoke(
@@ -29,8 +31,10 @@ export abstract class BaseTool<T extends IResourceReference> implements Language
                 new LanguageModelTextPart('Cannot use this tool in an untrusted workspace.'),
             ]);
         }
+        this.extraTelemetryProperties = {};
         let error: Error | undefined;
         const resource = resolveFilePath(options.input.resourcePath);
+        const stopWatch = new StopWatch();
         try {
             return await this.invokeImpl(options, resource, token);
         } catch (ex) {
@@ -46,10 +50,11 @@ export abstract class BaseTool<T extends IResourceReference> implements Language
                     ? error.telemetrySafeReason
                     : 'error'
                 : undefined;
-            sendTelemetryEvent(EventName.INVOKE_TOOL, undefined, {
+            sendTelemetryEvent(EventName.INVOKE_TOOL, stopWatch.elapsedTime, {
                 toolName: this.toolName,
                 failed,
                 failureCategory,
+                ...this.extraTelemetryProperties,
             });
         }
     }
diff --git a/src/client/chat/configurePythonEnvTool.ts b/src/client/chat/configurePythonEnvTool.ts
index 0634b9c9ac34..914a92f81c52 100644
--- a/src/client/chat/configurePythonEnvTool.ts
+++ b/src/client/chat/configurePythonEnvTool.ts
@@ -18,6 +18,7 @@ import { ICodeExecutionService } from '../terminals/types';
 import { TerminalCodeExecutionProvider } from '../terminals/codeExecution/terminalCodeExecution';
 import {
     getEnvDetailsForResponse,
+    getEnvTypeForTelemetry,
     getToolResponseIfNotebook,
     IResourceReference,
     isCancellationError,
@@ -58,6 +59,7 @@ export class ConfigurePythonEnvTool extends BaseTool<IResourceReference>
     ): Promise<LanguageModelToolResult> {
         const notebookResponse = getToolResponseIfNotebook(resource);
         if (notebookResponse) {
+            this.extraTelemetryProperties.resolveOutcome = 'notebook';
             return notebookResponse;
         }
 
@@ -67,6 +69,8 @@ export class ConfigurePythonEnvTool extends BaseTool<IResourceReference>
         );
 
         if (workspaceSpecificEnv) {
+            this.extraTelemetryProperties.resolveOutcome = 'existingWorkspaceEnv';
+            this.extraTelemetryProperties.envType = getEnvTypeForTelemetry(workspaceSpecificEnv);
             return getEnvDetailsForResponse(
                 workspaceSpecificEnv,
                 this.api,
@@ -79,7 +83,9 @@ export class ConfigurePythonEnvTool extends BaseTool<IResourceReference>
 
         if (await this.createEnvTool.shouldCreateNewVirtualEnv(resource, token)) {
             try {
-                return await lm.invokeTool(CreateVirtualEnvTool.toolName, options, token);
+                const result = await lm.invokeTool(CreateVirtualEnvTool.toolName, options, token);
+                this.extraTelemetryProperties.resolveOutcome = 'createdVirtualEnv';
+                return result;
             } catch (ex) {
                 if (isCancellationError(ex)) {
                     const input: ISelectPythonEnvToolArguments = {
@@ -87,6 +93,7 @@ export class ConfigurePythonEnvTool extends BaseTool<IResourceReference>
                         reason: 'cancelled',
                     };
                     // If the user cancelled the tool, then we should invoke the select env tool.
+                    this.extraTelemetryProperties.resolveOutcome = 'selectedEnvAfterCancelledCreate';
                     return lm.invokeTool(SelectPythonEnvTool.toolName, { ...options, input }, token);
                 }
                 throw ex;
@@ -95,6 +102,7 @@ export class ConfigurePythonEnvTool extends BaseTool<IResourceReference>
             const input: ISelectPythonEnvToolArguments = {
                 ...options.input,
             };
+            this.extraTelemetryProperties.resolveOutcome = 'selectedEnv';
             return lm.invokeTool(SelectPythonEnvTool.toolName, { ...options, input }, token);
         }
     }
diff --git a/src/client/chat/getExecutableTool.ts b/src/client/chat/getExecutableTool.ts
index 746a540d14f8..38dabce644a7 100644
--- a/src/client/chat/getExecutableTool.ts
+++ b/src/client/chat/getExecutableTool.ts
@@ -19,6 +19,7 @@ import { TerminalCodeExecutionProvider } from '../terminals/codeExecution/termin
 import {
     getEnvDisplayName,
     getEnvironmentDetails,
+    getEnvTypeForTelemetry,
     getToolResponseIfNotebook,
     IResourceReference,
     raceCancellationError,
@@ -53,6 +54,12 @@ export class GetExecutableTool extends BaseTool<IResourceReference> implements L
             return notebookResponse;
         }
 
+        const envPath = this.api.getActiveEnvironmentPath(resourcePath);
+        const environment = await raceCancellationError(this.api.resolveEnvironment(envPath), token);
+        if (environment) {
+            this.extraTelemetryProperties.envType = getEnvTypeForTelemetry(environment);
+        }
+
         const message = await getEnvironmentDetails(
             resourcePath,
             this.api,
diff --git a/src/client/chat/getPythonEnvTool.ts b/src/client/chat/getPythonEnvTool.ts
index ed1dd0374424..d25d72baeba8 100644
--- a/src/client/chat/getPythonEnvTool.ts
+++ b/src/client/chat/getPythonEnvTool.ts
@@ -17,7 +17,13 @@ import { IServiceContainer } from '../ioc/types';
 import { ICodeExecutionService } from '../terminals/types';
 import { TerminalCodeExecutionProvider } from '../terminals/codeExecution/terminalCodeExecution';
 import { IProcessServiceFactory, IPythonExecutionFactory } from '../common/process/types';
-import { getEnvironmentDetails, getToolResponseIfNotebook, IResourceReference, raceCancellationError } from './utils';
+import {
+    getEnvironmentDetails,
+    getEnvTypeForTelemetry,
+    getToolResponseIfNotebook,
+    IResourceReference,
+    raceCancellationError,
+} from './utils';
 import { getPythonPackagesResponse } from './listPackagesTool';
 import { ITerminalHelper } from '../common/terminal/types';
 import { getEnvExtApi, useEnvExtension } from '../envExt/api.internal';
@@ -64,13 +70,16 @@ export class GetEnvironmentInfoTool extends BaseTool<IResourceReference>
                 'noEnvFound',
             );
         }
+        this.extraTelemetryProperties.envType = getEnvTypeForTelemetry(environment);
 
         let packages = '';
+        let responsePackageCount = 0;
         if (useEnvExtension()) {
             const api = await getEnvExtApi();
             const env = await api.getEnvironment(resourcePath);
             const pkgs = env ? await api.getPackages(env) : [];
             if (pkgs && pkgs.length > 0) {
+                responsePackageCount = pkgs.length;
                 // Installed Python packages, each in the format <name> or <name> (<version>). The version may be omitted if unknown. Returns an empty array if no packages are installed.
                 const response = [
                     'Below is a list of the Python packages, each in the format <name> or <name> (<version>). The version may be omitted if unknown: ',
@@ -90,7 +99,10 @@ export class GetEnvironmentInfoTool extends BaseTool<IResourceReference>
                 resourcePath,
                 token,
             );
+            // Count lines starting with '- ' to get the number of packages
+            responsePackageCount = (packages.match(/^- /gm) || []).length;
         }
+        this.extraTelemetryProperties.responsePackageCount = String(responsePackageCount);
         const message = await getEnvironmentDetails(
             resourcePath,
             this.api,
diff --git a/src/client/chat/installPackagesTool.ts b/src/client/chat/installPackagesTool.ts
index f7795620cf13..5d3d456361f9 100644
--- a/src/client/chat/installPackagesTool.ts
+++ b/src/client/chat/installPackagesTool.ts
@@ -16,6 +16,7 @@ import { PythonExtension } from '../api/types';
 import { IServiceContainer } from '../ioc/types';
 import {
     getEnvDisplayName,
+    getEnvTypeForTelemetry,
     getToolResponseIfNotebook,
     IResourceReference,
     isCancellationError,
@@ -51,6 +52,7 @@ export class InstallPackagesTool extends BaseTool<IInstallPackageArgs>
     ): Promise<LanguageModelToolResult> {
         const packageCount = options.input.packageList.length;
         const packagePlurality = packageCount === 1 ? 'package' : 'packages';
+        this.extraTelemetryProperties.packageCount = String(packageCount);
         const notebookResponse = getToolResponseIfNotebook(resourcePath);
         if (notebookResponse) {
             return notebookResponse;
@@ -84,9 +86,11 @@ export class InstallPackagesTool extends BaseTool<IInstallPackageArgs>
                     'noEnvFound',
                 );
             }
+            this.extraTelemetryProperties.envType = getEnvTypeForTelemetry(environment);
             const isConda = isCondaEnv(environment);
             const installers = this.serviceContainer.getAll<IModuleInstaller>(IModuleInstaller);
             const installerType = isConda ? ModuleInstallerType.Conda : ModuleInstallerType.Pip;
+            this.extraTelemetryProperties.installerType = isConda ? 'conda' : 'pip';
             const installer = installers.find((i) => i.type === installerType);
             if (!installer) {
                 throw new ErrorWithTelemetrySafeReason(
diff --git a/src/client/chat/utils.ts b/src/client/chat/utils.ts
index 84df2901341b..2309316bcbdd 100644
--- a/src/client/chat/utils.ts
+++ b/src/client/chat/utils.ts
@@ -76,6 +76,10 @@ export function isCondaEnv(env: ResolvedEnvironment) {
     return (env.environment?.type || '').toLowerCase() === 'conda';
 }
 
+export function getEnvTypeForTelemetry(env: ResolvedEnvironment): string {
+    return (env.environment?.type || 'unknown').toLowerCase();
+}
+
 export async function getEnvironmentDetails(
     resourcePath: Uri | undefined,
     api: PythonExtension['environments'],
diff --git a/src/client/telemetry/index.ts b/src/client/telemetry/index.ts
index 7fd586215145..763f7405aa0d 100644
--- a/src/client/telemetry/index.ts
+++ b/src/client/telemetry/index.ts
@@ -1992,7 +1992,12 @@ export interface IEventNamePropertyMapping {
            "duration" : { "classification": "SystemMetaData", "purpose": "FeatureInsight", "isMeasurement": true, "owner": "donjayamanne" },
            "toolName" : { "classification": "SystemMetaData", "purpose": "FeatureInsight", "owner": "donjayamanne" },
             "failed": {"classification":"SystemMetaData","purpose":"FeatureInsight","comment":"Whether there was a failure. Common to most of the events.", "owner": "donjayamanne" },
-            "failureCategory": {"classification":"SystemMetaData","purpose":"FeatureInsight","comment":"A reason that we generate (e.g. kerneldied, noipykernel, etc), more like a category of the error. Common to most of the events.", "owner": "donjayamanne" }
+            "failureCategory": {"classification":"SystemMetaData","purpose":"FeatureInsight","comment":"A reason that we generate (e.g. kerneldied, noipykernel, etc), more like a category of the error. Common to most of the events.", "owner": "donjayamanne" },
+            "resolveOutcome": {"classification":"SystemMetaData","purpose":"FeatureInsight","comment":"Which code path resolved the environment in configure_python_environment.", "owner": "donjayamanne" },
+            "envType": {"classification":"SystemMetaData","purpose":"FeatureInsight","comment":"The type of Python environment (e.g. venv, conda, system).", "owner": "donjayamanne" },
+            "packageCount": {"classification":"SystemMetaData","purpose":"FeatureInsight","comment":"Number of packages requested for installation (install_python_packages only).", "owner": "donjayamanne" },
+            "installerType": {"classification":"SystemMetaData","purpose":"FeatureInsight","comment":"Which installer was used: pip or conda (install_python_packages only).", "owner": "donjayamanne" },
+            "responsePackageCount": {"classification":"SystemMetaData","purpose":"FeatureInsight","comment":"Number of packages in the environment response (get_python_environment_details only).", "owner": "donjayamanne" }
        }
      */
     [EventName.INVOKE_TOOL]: {
@@ -2009,6 +2014,26 @@ export interface IEventNamePropertyMapping {
          * A reason the error was thrown.
          */
         failureCategory?: string;
+        /**
+         * Which code path resolved the environment (configure_python_environment only).
+         */
+        resolveOutcome?: string;
+        /**
+         * The type of Python environment (e.g. venv, conda, system).
+         */
+        envType?: string;
+        /**
+         * Number of packages requested for installation (install_python_packages only).
+         */
+        packageCount?: string;
+        /**
+         * Which installer was used: pip or conda (install_python_packages only).
+         */
+        installerType?: string;
+        /**
+         * Number of packages in the environment response (get_python_environment_details only).
+         */
+        responsePackageCount?: string;
     };
     /**
      * Telemetry event sent if and when user configure tests command. This command can be trigerred from multiple places in the extension. (Command palette, prompt etc.)

From f255bef264750c859f303390e4396a1617be2f93 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Thu, 23 Apr 2026 13:26:07 -0700
Subject: [PATCH 173/178] Bump uuid from 8.3.2 to 14.0.0 (#25929)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps [uuid](https://github.com/uuidjs/uuid) from 8.3.2 to 14.0.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/uuidjs/uuid/releases">uuid's
releases</a>.</em></p>
<blockquote>
<h2>v14.0.0</h2>
<h2><a
href="https://github.com/uuidjs/uuid/compare/v13.0.0...v14.0.0">14.0.0</a>
(2026-04-19)</h2>
<h3>⚠ BREAKING CHANGES</h3>
<ul>
<li>expect <code>crypto</code> to be global everywhere (requires
node@20+) (<a
href="https://redirect.github.com/uuidjs/uuid/issues/935">#935</a>)</li>
<li>drop node@18 support (<a
href="https://redirect.github.com/uuidjs/uuid/issues/934">#934</a>)</li>
</ul>
<h3>Features</h3>
<ul>
<li>drop node@18 support (<a
href="https://redirect.github.com/uuidjs/uuid/issues/934">#934</a>) (<a
href="https://github.com/uuidjs/uuid/commit/dc4ddb87272ed2843faccd130bcc41d492688bd3">dc4ddb8</a>)</li>
</ul>
<h3>Bug Fixes</h3>
<ul>
<li>expect <code>crypto</code> to be global everywhere (requires
node@20+) (<a
href="https://redirect.github.com/uuidjs/uuid/issues/935">#935</a>) (<a
href="https://github.com/uuidjs/uuid/commit/f2c235f93059325fa43e1106e624b5291bb523c4">f2c235f</a>)</li>
<li>Use GITHUB_TOKEN for release-please and enable npm provenance (<a
href="https://redirect.github.com/uuidjs/uuid/issues/925">#925</a>) (<a
href="https://github.com/uuidjs/uuid/commit/ffa31383e8e4e1f0b4e22e504561272041b8738c">ffa3138</a>)</li>
</ul>
<h2>v13.0.0</h2>
<h2><a
href="https://github.com/uuidjs/uuid/compare/v12.0.0...v13.0.0">13.0.0</a>
(2025-09-08)</h2>
<h3>⚠ BREAKING CHANGES</h3>
<ul>
<li>make browser exports the default (<a
href="https://redirect.github.com/uuidjs/uuid/issues/901">#901</a>)</li>
</ul>
<h3>Bug Fixes</h3>
<ul>
<li>make browser exports the default (<a
href="https://redirect.github.com/uuidjs/uuid/issues/901">#901</a>) (<a
href="https://github.com/uuidjs/uuid/commit/bce9d72a3ae5b9a3dcd8eb21ef6d1820288a427a">bce9d72</a>)</li>
</ul>
<h2>v12.0.0</h2>
<h2><a
href="https://github.com/uuidjs/uuid/compare/v11.1.0...v12.0.0">12.0.0</a>
(2025-09-05)</h2>
<h3>⚠ BREAKING CHANGES</h3>
<ul>
<li>update to typescript@5.2 (<a
href="https://redirect.github.com/uuidjs/uuid/issues/887">#887</a>)</li>
<li>remove CommonJS support (<a
href="https://redirect.github.com/uuidjs/uuid/issues/886">#886</a>)</li>
<li>drop node@16 support (<a
href="https://redirect.github.com/uuidjs/uuid/issues/883">#883</a>)</li>
</ul>
<h3>Features</h3>
<ul>
<li>add node@24 to ci matrix (<a
href="https://redirect.github.com/uuidjs/uuid/issues/879">#879</a>) (<a
href="https://github.com/uuidjs/uuid/commit/42b6178aa21a593257f0a72abacd220f0b7b8a92">42b6178</a>)</li>
<li>drop node@16 support (<a
href="https://redirect.github.com/uuidjs/uuid/issues/883">#883</a>) (<a
href="https://github.com/uuidjs/uuid/commit/0f38cf10366ab074f9328ae2021eea04d5f2e530">0f38cf1</a>)</li>
<li>remove CommonJS support (<a
href="https://redirect.github.com/uuidjs/uuid/issues/886">#886</a>) (<a
href="https://github.com/uuidjs/uuid/commit/ae786e27265f50bcf7cead196c29f1869297c42f">ae786e2</a>)</li>
<li>update to typescript@5.2 (<a
href="https://redirect.github.com/uuidjs/uuid/issues/887">#887</a>) (<a
href="https://github.com/uuidjs/uuid/commit/c7ee40598ed78584d81ab78dffded9fe5ff20b01">c7ee405</a>)</li>
</ul>
<h3>Bug Fixes</h3>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/uuidjs/uuid/blob/main/CHANGELOG.md">uuid's
changelog</a>.</em></p>
<blockquote>
<h2><a
href="https://github.com/uuidjs/uuid/compare/v13.0.0...v14.0.0">14.0.0</a>
(2026-04-19)</h2>
<h3>Security</h3>
<ul>
<li>Fixes <a
href="https://github.com/uuidjs/uuid/security/advisories/GHSA-w5hq-g745-h8pq">GHSA-w5hq-g745-h8pq</a>:
<code>v3()</code>, <code>v5()</code>, and <code>v6()</code> did not
validate that writes would remain within the bounds of a caller-supplied
buffer, allowing out-of-bounds writes when an invalid
<code>offset</code> was provided. A <code>RangeError</code> is now
thrown if <code>offset &lt; 0</code> or <code>offset + 16 &gt;
buf.length</code>.</li>
</ul>
<h3>⚠ BREAKING CHANGES</h3>
<ul>
<li><code>crypto</code> is now expected to be globally defined (requires
node@20+) (<a
href="https://redirect.github.com/uuidjs/uuid/issues/935">#935</a>)</li>
<li>drop node@18 support (<a
href="https://redirect.github.com/uuidjs/uuid/issues/934">#934</a>)</li>
<li>upgrade minimum supported TypeScript version to 5.4.3, in keeping
with the project's policy of supporting TypeScript versions released
within the last two years</li>
</ul>
<h2><a
href="https://github.com/uuidjs/uuid/compare/v12.0.0...v13.0.0">13.0.0</a>
(2025-09-08)</h2>
<h3>⚠ BREAKING CHANGES</h3>
<ul>
<li>make browser exports the default (<a
href="https://redirect.github.com/uuidjs/uuid/issues/901">#901</a>)</li>
</ul>
<h3>Bug Fixes</h3>
<ul>
<li>make browser exports the default (<a
href="https://redirect.github.com/uuidjs/uuid/issues/901">#901</a>) (<a
href="https://github.com/uuidjs/uuid/commit/bce9d72a3ae5b9a3dcd8eb21ef6d1820288a427a">bce9d72</a>)</li>
</ul>
<h2><a
href="https://github.com/uuidjs/uuid/compare/v11.1.0...v12.0.0">12.0.0</a>
(2025-09-05)</h2>
<h3>⚠ BREAKING CHANGES</h3>
<ul>
<li>update to typescript@5.2 (<a
href="https://redirect.github.com/uuidjs/uuid/issues/887">#887</a>)</li>
<li>remove CommonJS support (<a
href="https://redirect.github.com/uuidjs/uuid/issues/886">#886</a>)</li>
<li>drop node@16 support (<a
href="https://redirect.github.com/uuidjs/uuid/issues/883">#883</a>)</li>
</ul>
<h3>Features</h3>
<ul>
<li>add node@24 to ci matrix (<a
href="https://redirect.github.com/uuidjs/uuid/issues/879">#879</a>) (<a
href="https://github.com/uuidjs/uuid/commit/42b6178aa21a593257f0a72abacd220f0b7b8a92">42b6178</a>)</li>
<li>drop node@16 support (<a
href="https://redirect.github.com/uuidjs/uuid/issues/883">#883</a>) (<a
href="https://github.com/uuidjs/uuid/commit/0f38cf10366ab074f9328ae2021eea04d5f2e530">0f38cf1</a>)</li>
<li>remove CommonJS support (<a
href="https://redirect.github.com/uuidjs/uuid/issues/886">#886</a>) (<a
href="https://github.com/uuidjs/uuid/commit/ae786e27265f50bcf7cead196c29f1869297c42f">ae786e2</a>)</li>
<li>update to typescript@5.2 (<a
href="https://redirect.github.com/uuidjs/uuid/issues/887">#887</a>) (<a
href="https://github.com/uuidjs/uuid/commit/c7ee40598ed78584d81ab78dffded9fe5ff20b01">c7ee405</a>)</li>
</ul>
<h3>Bug Fixes</h3>
<ul>
<li>improve v4() performance (<a
href="https://redirect.github.com/uuidjs/uuid/issues/894">#894</a>) (<a
href="https://github.com/uuidjs/uuid/commit/5fd974c12718c8848035650b69b8948f12ace197">5fd974c</a>)</li>
<li>restore node: prefix (<a
href="https://redirect.github.com/uuidjs/uuid/issues/889">#889</a>) (<a
href="https://github.com/uuidjs/uuid/commit/e1f42a354593093ba0479f0b4047dae82d28c507">e1f42a3</a>)</li>
</ul>
<h2><a
href="https://github.com/uuidjs/uuid/compare/v11.0.5...v11.1.0">11.1.0</a>
(2025-02-19)</h2>
<!-- raw HTML omitted -->
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/uuidjs/uuid/commit/7c1ea087a8149b57380fc8bb7f68c3a215cb6e4b"><code>7c1ea08</code></a>
chore(main): release 14.0.0 (<a
href="https://redirect.github.com/uuidjs/uuid/issues/926">#926</a>)</li>
<li><a
href="https://github.com/uuidjs/uuid/commit/3d2c5b0342f0fcb52a5ac681c3d47c13e7444b34"><code>3d2c5b0</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/uuidjs/uuid/commit/f2c235f93059325fa43e1106e624b5291bb523c4"><code>f2c235f</code></a>
fix!: expect <code>crypto</code> to be global everywhere (requires
node@20+) (<a
href="https://redirect.github.com/uuidjs/uuid/issues/935">#935</a>)</li>
<li><a
href="https://github.com/uuidjs/uuid/commit/529ef0899f5dd503d2ee90d690585d63d78bc212"><code>529ef08</code></a>
chore: upgrade TypeScript and fixup types (<a
href="https://redirect.github.com/uuidjs/uuid/issues/927">#927</a>)</li>
<li><a
href="https://github.com/uuidjs/uuid/commit/086fd7976f11433edf9ac80be876b3ad243fe087"><code>086fd79</code></a>
chore: update dependencies (<a
href="https://redirect.github.com/uuidjs/uuid/issues/933">#933</a>)</li>
<li><a
href="https://github.com/uuidjs/uuid/commit/dc4ddb87272ed2843faccd130bcc41d492688bd3"><code>dc4ddb8</code></a>
feat!: drop node@18 support (<a
href="https://redirect.github.com/uuidjs/uuid/issues/934">#934</a>)</li>
<li><a
href="https://github.com/uuidjs/uuid/commit/0f1f9c9c9cedbae5a1d363d5406c5dfbabe81404"><code>0f1f9c9</code></a>
chore: switch to Biome for parsing and linting (<a
href="https://redirect.github.com/uuidjs/uuid/issues/932">#932</a>)</li>
<li><a
href="https://github.com/uuidjs/uuid/commit/e2879e64bf125add903c1eff6e0860542c605013"><code>e2879e6</code></a>
chore: use maintained version of npm-run-all (<a
href="https://redirect.github.com/uuidjs/uuid/issues/930">#930</a>)</li>
<li><a
href="https://github.com/uuidjs/uuid/commit/ffa31383e8e4e1f0b4e22e504561272041b8738c"><code>ffa3138</code></a>
fix: Use GITHUB_TOKEN for release-please and enable npm provenance (<a
href="https://redirect.github.com/uuidjs/uuid/issues/925">#925</a>)</li>
<li><a
href="https://github.com/uuidjs/uuid/commit/0423d49df2dc8efc300c804731d25f4d7e0fccc4"><code>0423d49</code></a>
docs: remove obsolete v1 option notes (<a
href="https://redirect.github.com/uuidjs/uuid/issues/915">#915</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/uuidjs/uuid/compare/v8.3.2...v14.0.0">compare
view</a></li>
</ul>
</details>
<details>
<summary>Maintainer changes</summary>
<p>This version was pushed to npm by <a
href="https://www.npmjs.com/~GitHub%20Actions">GitHub Actions</a>, a new
releaser for uuid since your current version.</p>
</details>
<details>
<summary>Install script changes</summary>
<p>This version adds <code>prepare</code> script that runs during
installation. Review the package contents before updating.</p>
</details>
<br />


[![Dependabot compatibility
score](https://dependabot-badges.githubapp.com/badges/compatibility_score?dependency-name=uuid&package-manager=npm_and_yarn&previous-version=8.3.2&new-version=14.0.0)](https://docs.github.com/en/github/managing-security-vulnerabilities/about-dependabot-security-updates#about-compatibility-scores)

Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

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<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
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Dependabot creating any more for this major version (unless you reopen
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Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
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---
 package-lock.json | 65 +++++++++++++++++++++++++++++++++++++++++------
 package.json      |  2 +-
 2 files changed, 58 insertions(+), 9 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 6de6edae81c0..258726777690 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -103,7 +103,7 @@
                 "tsconfig-paths-webpack-plugin": "^3.2.0",
                 "typemoq": "^2.1.0",
                 "typescript": "~5.2",
-                "uuid": "^8.3.2",
+                "uuid": "^14.0.0",
                 "webpack": "^5.105.0",
                 "webpack-bundle-analyzer": "^4.5.0",
                 "webpack-cli": "^4.9.2",
@@ -285,6 +285,14 @@
             "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.6.2.tgz",
             "integrity": "sha512-AEYxH93jGFPn/a2iVAwW87VuUIkR1FVUKB77NwMF7nBTDkDrrT/Hpt/IrCJ0QXhW27jTBDcf5ZY7w6RiqTMw2Q=="
         },
+        "node_modules/@azure/core-rest-pipeline/node_modules/uuid": {
+            "version": "8.3.2",
+            "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
+            "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg==",
+            "bin": {
+                "uuid": "dist/bin/uuid"
+            }
+        },
         "node_modules/@azure/core-tracing": {
             "version": "1.0.1",
             "resolved": "https://registry.npmjs.org/@azure/core-tracing/-/core-tracing-1.0.1.tgz",
@@ -434,6 +442,15 @@
                 "node": ">=0.8.0"
             }
         },
+        "node_modules/@azure/msal-node/node_modules/uuid": {
+            "version": "8.3.2",
+            "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
+            "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg==",
+            "dev": true,
+            "bin": {
+                "uuid": "dist/bin/uuid"
+            }
+        },
         "node_modules/@azure/opentelemetry-instrumentation-azure-sdk": {
             "version": "1.0.0-beta.5",
             "resolved": "https://registry.npmjs.org/@azure/opentelemetry-instrumentation-azure-sdk/-/opentelemetry-instrumentation-azure-sdk-1.0.0-beta.5.tgz",
@@ -9144,6 +9161,15 @@
                 "node": ">=8"
             }
         },
+        "node_modules/istanbul-lib-processinfo/node_modules/uuid": {
+            "version": "8.3.2",
+            "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
+            "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg==",
+            "dev": true,
+            "bin": {
+                "uuid": "dist/bin/uuid"
+            }
+        },
         "node_modules/istanbul-lib-report": {
             "version": "3.0.0",
             "resolved": "https://registry.npmjs.org/istanbul-lib-report/-/istanbul-lib-report-3.0.0.tgz",
@@ -14470,11 +14496,16 @@
             "dev": true
         },
         "node_modules/uuid": {
-            "version": "8.3.2",
-            "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
-            "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg==",
+            "version": "14.0.0",
+            "resolved": "https://registry.npmjs.org/uuid/-/uuid-14.0.0.tgz",
+            "integrity": "sha512-Qo+uWgilfSmAhXCMav1uYFynlQO7fMFiMVZsQqZRMIXp0O7rR7qjkj+cPvBHLgBqi960QCoo/PH2/6ZtVqKvrg==",
+            "dev": true,
+            "funding": [
+                "https://github.com/sponsors/broofa",
+                "https://github.com/sponsors/ctavan"
+            ],
             "bin": {
-                "uuid": "dist/bin/uuid"
+                "uuid": "dist-node/bin/uuid"
             }
         },
         "node_modules/v8-compile-cache-lib": {
@@ -15713,6 +15744,11 @@
                     "version": "2.6.2",
                     "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.6.2.tgz",
                     "integrity": "sha512-AEYxH93jGFPn/a2iVAwW87VuUIkR1FVUKB77NwMF7nBTDkDrrT/Hpt/IrCJ0QXhW27jTBDcf5ZY7w6RiqTMw2Q=="
+                },
+                "uuid": {
+                    "version": "8.3.2",
+                    "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
+                    "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg=="
                 }
             }
         },
@@ -15844,6 +15880,12 @@
                     "resolved": "https://registry.npmjs.org/@azure/msal-common/-/msal-common-14.12.0.tgz",
                     "integrity": "sha512-IDDXmzfdwmDkv4SSmMEyAniJf6fDu3FJ7ncOjlxkDuT85uSnLEhZi3fGZpoR7T4XZpOMx9teM9GXBgrfJgyeBw==",
                     "dev": true
+                },
+                "uuid": {
+                    "version": "8.3.2",
+                    "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
+                    "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg==",
+                    "dev": true
                 }
             }
         },
@@ -22342,6 +22384,12 @@
                     "resolved": "https://registry.npmjs.org/shebang-regex/-/shebang-regex-3.0.0.tgz",
                     "integrity": "sha512-7++dFhtcx3353uBaq8DDR4NuxBetBzC7ZQOhmTQInHEd6bSrXdiEyzCvG07Z44UYdLShWUyXt5M/yhz8ekcb1A==",
                     "dev": true
+                },
+                "uuid": {
+                    "version": "8.3.2",
+                    "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
+                    "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg==",
+                    "dev": true
                 }
             }
         },
@@ -26326,9 +26374,10 @@
             "dev": true
         },
         "uuid": {
-            "version": "8.3.2",
-            "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
-            "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg=="
+            "version": "14.0.0",
+            "resolved": "https://registry.npmjs.org/uuid/-/uuid-14.0.0.tgz",
+            "integrity": "sha512-Qo+uWgilfSmAhXCMav1uYFynlQO7fMFiMVZsQqZRMIXp0O7rR7qjkj+cPvBHLgBqi960QCoo/PH2/6ZtVqKvrg==",
+            "dev": true
         },
         "v8-compile-cache-lib": {
             "version": "3.0.0",
diff --git a/package.json b/package.json
index 2a27cddc0976..9f689b60ff34 100644
--- a/package.json
+++ b/package.json
@@ -1799,7 +1799,7 @@
         "tsconfig-paths-webpack-plugin": "^3.2.0",
         "typemoq": "^2.1.0",
         "typescript": "~5.2",
-        "uuid": "^8.3.2",
+        "uuid": "^14.0.0",
         "webpack": "^5.105.0",
         "webpack-bundle-analyzer": "^4.5.0",
         "webpack-cli": "^4.9.2",

From 347b1ac4495da204c65bf938807c96ec90b1c651 Mon Sep 17 00:00:00 2001
From: Eleanor Boyd <26030610+eleanorjboyd@users.noreply.github.com>
Date: Sun, 26 Apr 2026 13:38:49 -0700
Subject: [PATCH 174/178] Update Python version from 3.9 to 3.10 in pipeline
 and conda environment configurations (#25933)

---
 build/azure-pipeline.pre-release.yml | 2 +-
 build/azure-pipeline.stable.yml      | 2 +-
 build/ci/conda_env_1.yml             | 2 +-
 build/ci/conda_env_2.yml             | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/build/azure-pipeline.pre-release.yml b/build/azure-pipeline.pre-release.yml
index e7159618d3ae..c300039f4ef4 100644
--- a/build/azure-pipeline.pre-release.yml
+++ b/build/azure-pipeline.pre-release.yml
@@ -71,7 +71,7 @@ extends:
 
       - task: UsePythonVersion@0
         inputs:
-          versionSpec: '3.9'
+          versionSpec: '3.10'
           addToPath: true
           architecture: 'x64'
         displayName: Select Python version
diff --git a/build/azure-pipeline.stable.yml b/build/azure-pipeline.stable.yml
index cd66613eec8d..024417da0e00 100644
--- a/build/azure-pipeline.stable.yml
+++ b/build/azure-pipeline.stable.yml
@@ -65,7 +65,7 @@ extends:
 
       - task: UsePythonVersion@0
         inputs:
-          versionSpec: '3.9'
+          versionSpec: '3.10'
           addToPath: true
           architecture: 'x64'
         displayName: Select Python version
diff --git a/build/ci/conda_env_1.yml b/build/ci/conda_env_1.yml
index 4f9ceefd27fb..e3230ad0096e 100644
--- a/build/ci/conda_env_1.yml
+++ b/build/ci/conda_env_1.yml
@@ -1,4 +1,4 @@
 name: conda_env_1
 dependencies:
-  - python=3.9
+  - python=3.10
   - pip
diff --git a/build/ci/conda_env_2.yml b/build/ci/conda_env_2.yml
index af9d7a46ba3e..38f551da2580 100644
--- a/build/ci/conda_env_2.yml
+++ b/build/ci/conda_env_2.yml
@@ -1,4 +1,4 @@
 name: conda_env_2
 dependencies:
-  - python=3.9
+  - python=3.10
   - pip

From d48d1242833c3e579d9e08ea549ba7ac3a243357 Mon Sep 17 00:00:00 2001
From: Eduardo Villalpando Mello <eduardo.villalpando.mello@gmail.com>
Date: Thu, 7 May 2026 10:54:27 -0700
Subject: [PATCH 175/178] Fix duplicate command
 python.getRecommendedEnvironment (#25947)

Adds guards when calling RecommendedEnvironmentService::activate per
folder on a multiroot workspace to avoid registering the command several
times.

Fixes #25949
---
 .../recommededEnvironmentService.ts           |  5 ++
 .../recommededEnvironmentService.unit.test.ts | 50 +++++++++++++++++++
 2 files changed, 55 insertions(+)
 create mode 100644 src/test/interpreters/recommededEnvironmentService.unit.test.ts

diff --git a/src/client/interpreter/configuration/recommededEnvironmentService.ts b/src/client/interpreter/configuration/recommededEnvironmentService.ts
index c5356409fcee..39f4edfde1d6 100644
--- a/src/client/interpreter/configuration/recommededEnvironmentService.ts
+++ b/src/client/interpreter/configuration/recommededEnvironmentService.ts
@@ -17,6 +17,7 @@ const MEMENTO_KEY = 'userSelectedEnvPath';
 @injectable()
 export class RecommendedEnvironmentService implements IRecommendedEnvironmentService, IExtensionActivationService {
     private api?: PythonExtension['environments'];
+    private hasRegisteredCommand = false;
     constructor(@inject(IExtensionContext) private readonly extensionContext: IExtensionContext) {}
     supportedWorkspaceTypes: { untrustedWorkspace: boolean; virtualWorkspace: boolean } = {
         untrustedWorkspace: true,
@@ -24,6 +25,10 @@ export class RecommendedEnvironmentService implements IRecommendedEnvironmentSer
     };
 
     async activate(_resource: Resource, _startupStopWatch?: StopWatch): Promise<void> {
+        if (this.hasRegisteredCommand) {
+            return;
+        }
+        this.hasRegisteredCommand = true;
         this.extensionContext.subscriptions.push(
             commands.registerCommand('python.getRecommendedEnvironment', async (resource: Resource) => {
                 return this.getRecommededEnvironment(resource);
diff --git a/src/test/interpreters/recommededEnvironmentService.unit.test.ts b/src/test/interpreters/recommededEnvironmentService.unit.test.ts
new file mode 100644
index 000000000000..7cb5aed58239
--- /dev/null
+++ b/src/test/interpreters/recommededEnvironmentService.unit.test.ts
@@ -0,0 +1,50 @@
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License.
+
+'use strict';
+
+import { expect } from 'chai';
+import { anything, reset, verify, when } from 'ts-mockito';
+import { Disposable, Uri } from 'vscode';
+import { mockedVSCodeNamespaces } from '../vscode-mock';
+import { RecommendedEnvironmentService } from '../../client/interpreter/configuration/recommededEnvironmentService';
+
+suite('RecommendedEnvironmentService - activate', () => {
+    let service: RecommendedEnvironmentService;
+    let subscriptions: Disposable[];
+
+    setup(() => {
+        subscriptions = [];
+        const extensionContext = {
+            subscriptions,
+            globalState: {
+                get: () => undefined,
+                update: () => Promise.resolve(),
+            },
+        } as any;
+
+        when(mockedVSCodeNamespaces.commands!.registerCommand(anything(), anything())).thenReturn({
+            dispose: () => {},
+        } as Disposable);
+
+        service = new RecommendedEnvironmentService(extensionContext);
+    });
+
+    teardown(() => {
+        reset(mockedVSCodeNamespaces.commands!);
+    });
+
+    test('Multiroot workspace: command is registered only once across multiple activate calls', async () => {
+        // Simulate multiroot workspace where activate is called once per workspace root
+        const workspaceRoot1 = Uri.file('/workspace/root1');
+        const workspaceRoot2 = Uri.file('/workspace/root2');
+        const workspaceRoot3 = Uri.file('/workspace/root3');
+
+        await service.activate(workspaceRoot1);
+        await service.activate(workspaceRoot2);
+        await service.activate(workspaceRoot3);
+
+        verify(mockedVSCodeNamespaces.commands!.registerCommand('python.getRecommendedEnvironment', anything())).once();
+        expect(subscriptions).to.have.lengthOf(1);
+    });
+});

From 6642ccef67ce81b624b33526cf57a4cf90f3455e Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Tue, 12 May 2026 18:25:29 +0000
Subject: [PATCH 176/178] Bump packaging from 26.1 to 26.2 (#25934)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps [packaging](https://github.com/pypa/packaging) from 26.1 to 26.2.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/pypa/packaging/releases">packaging's
releases</a>.</em></p>
<blockquote>
<h2>26.2</h2>
<h2>What's Changed</h2>
<p>Fixes:</p>
<ul>
<li>Fix incorrect sysconfig var name for pyemscripten by <a
href="https://github.com/ryanking13"><code>@​ryanking13</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1160">pypa/packaging#1160</a></li>
<li>Make <code>Version</code>, <code>Specifier</code>,
<code>SpecifierSet</code>, <code>Tag</code>, <code>Marker</code>, and
<code>Requirement</code> pickle-safe
and backward-compatible with pickles created in 25.0-26.1 (including
references to the removed
<code>packaging._structures</code> module) by <a
href="https://github.com/eachimei"><code>@​eachimei</code></a> and <a
href="https://github.com/henryiii"><code>@​henryiii</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1163">pypa/packaging#1163</a>,
<a
href="https://redirect.github.com/pypa/packaging/pull/1168">pypa/packaging#1168</a>,
<a
href="https://redirect.github.com/pypa/packaging/pull/1170">pypa/packaging#1170</a>,
and <a
href="https://redirect.github.com/pypa/packaging/pull/1171">pypa/packaging#1171</a></li>
<li>fix: re-export ExceptionGroup for now by <a
href="https://github.com/henryiii"><code>@​henryiii</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1164">pypa/packaging#1164</a></li>
</ul>
<p>Documentation:</p>
<ul>
<li>docs: add errors section and fix missing details by <a
href="https://github.com/henryiii"><code>@​henryiii</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1159">pypa/packaging#1159</a></li>
<li>docs(dev): document property-based test suite by <a
href="https://github.com/r266-tech"><code>@​r266-tech</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1167">pypa/packaging#1167</a></li>
<li>Fix typo in DirectUrl documentation by <a
href="https://github.com/sbidoul"><code>@​sbidoul</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1169">pypa/packaging#1169</a></li>
<li>docs(specifiers): add is_unsatisfiable() usage example by <a
href="https://github.com/r266-tech"><code>@​r266-tech</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1166">pypa/packaging#1166</a></li>
</ul>
<p>Internal:</p>
<ul>
<li>Enable the auditor persona on zizmor by <a
href="https://github.com/henryiii"><code>@​henryiii</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1158">pypa/packaging#1158</a></li>
<li>Test new pickle guarantees by <a
href="https://github.com/henryiii"><code>@​henryiii</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1174">pypa/packaging#1174</a></li>
<li>Use native uv integration in rtd by <a
href="https://github.com/henryiii"><code>@​henryiii</code></a> in <a
href="https://redirect.github.com/pypa/packaging/pull/1175">pypa/packaging#1175</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a
href="https://github.com/ryanking13"><code>@​ryanking13</code></a> made
their first contribution in <a
href="https://redirect.github.com/pypa/packaging/pull/1160">pypa/packaging#1160</a></li>
<li><a href="https://github.com/eachimei"><code>@​eachimei</code></a>
made their first contribution in <a
href="https://redirect.github.com/pypa/packaging/pull/1163">pypa/packaging#1163</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/pypa/packaging/compare/26.1...26.2">https://github.com/pypa/packaging/compare/26.1...26.2</a></p>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/pypa/packaging/blob/main/CHANGELOG.rst">packaging's
changelog</a>.</em></p>
<blockquote>
<p>26.2 - 2026-04-24</p>
<pre><code>
Fixes:
<ul>
<li>Fix incorrect sysconfig var name for pyemscripten in
(:pull:<code>1160</code>)</li>
<li>Make <code>Version</code>, <code>Specifier</code>,
<code>SpecifierSet</code>, <code>Tag</code>, <code>Marker</code>, and
<code>Requirement</code> pickle-safe<br />
and backward-compatible with pickles created in 25.0-26.1 (including
references to the removed<br />
<code>packaging._structures</code> module) (:pull:<code>1163</code>,
:pull:<code>1168</code>, :pull:<code>1170</code>,
:pull:<code>1171</code>)</li>
<li>Re-export <code>ExceptionGroup</code> in metadata for now in
(:pull:<code>1164</code>)</li>
</ul>
<p>Documentation:</p>
<ul>
<li>Add errors section and fix missing details in
(:pull:<code>1159</code>)</li>
<li>Document our property-based test suite in
(:pull:<code>1167</code>)</li>
<li>Fix a <code>DirectUrl</code> typo in (:pull:<code>1167</code>)</li>
<li>Add example of <code>is_unsatisfiable</code> in
(:pull:<code>1166</code>)</li>
</ul>
<p>Internal:</p>
<ul>
<li>Enable the auditor persona on zizmor in
(:pull:<code>1158</code>)</li>
<li>Test new pickle guarantees in (:pull:<code>1174</code>)</li>
<li>Use new native ReadTheDocs uv integration in
(:pull:<code>1175</code>)<br />
</code></pre></li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/pypa/packaging/commit/84a87ee42483d7352f9502d78a9553da8859aa7a"><code>84a87ee</code></a>
Bump for release</li>
<li><a
href="https://github.com/pypa/packaging/commit/4a616b65bed23c8c6d58e6b0fc1a4434d4ff1f14"><code>4a616b6</code></a>
docs: a few more updates to prepare for 26.2 (<a
href="https://redirect.github.com/pypa/packaging/issues/1176">#1176</a>)</li>
<li><a
href="https://github.com/pypa/packaging/commit/9de6f44f1e82d4595edf3aad1c4f6f98c85935a0"><code>9de6f44</code></a>
ci: use native uv integration in rtd (<a
href="https://redirect.github.com/pypa/packaging/issues/1175">#1175</a>)</li>
<li><a
href="https://github.com/pypa/packaging/commit/bc76e14debd1a2799d1ca8f9d9c9823f35bfa466"><code>bc76e14</code></a>
chore: update changelog for 26.2 (<a
href="https://redirect.github.com/pypa/packaging/issues/1161">#1161</a>)</li>
<li><a
href="https://github.com/pypa/packaging/commit/3f00091c08f0aa830e33ed7db00f16f11c8ac97f"><code>3f00091</code></a>
tests: add a pickle check (<a
href="https://redirect.github.com/pypa/packaging/issues/1174">#1174</a>)</li>
<li><a
href="https://github.com/pypa/packaging/commit/48a8a069805291186522de3eff73ea80a8ca96ad"><code>48a8a06</code></a>
fix: make Requirements/Markers pickle-safe (<a
href="https://redirect.github.com/pypa/packaging/issues/1171">#1171</a>)</li>
<li><a
href="https://github.com/pypa/packaging/commit/823b44ed1f904084a77ae3adf0ef130af6365f84"><code>823b44e</code></a>
fix: make Tags pickle-safe (<a
href="https://redirect.github.com/pypa/packaging/issues/1170">#1170</a>)</li>
<li><a
href="https://github.com/pypa/packaging/commit/4bed32d920ca7211dd65fdf0a1ee06376e9c4733"><code>4bed32d</code></a>
fix: make Specifier / SpecifierSet pickle-safe (<a
href="https://redirect.github.com/pypa/packaging/issues/1168">#1168</a>)</li>
<li><a
href="https://github.com/pypa/packaging/commit/963118e37caae97bc8b72f72956c7fb4ca9857ec"><code>963118e</code></a>
fix: re-export ExceptionGroup for now (<a
href="https://redirect.github.com/pypa/packaging/issues/1164">#1164</a>)</li>
<li><a
href="https://github.com/pypa/packaging/commit/66e34a80256c96dea11da143682950c84b8133bb"><code>66e34a8</code></a>
docs(specifiers): add is_unsatisfiable() usage example (<a
href="https://redirect.github.com/pypa/packaging/issues/1166">#1166</a>)</li>
<li>Additional commits viewable in <a
href="https://github.com/pypa/packaging/compare/26.1...26.2">compare
view</a></li>
</ul>
</details>
<br />


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Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
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<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
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---
 requirements.txt | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/requirements.txt b/requirements.txt
index 5d325361bd4c..540590ed2ae7 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,9 +8,9 @@ microvenv==2025.0 \
     --hash=sha256:568155ec18af01c89f270d35d123ab803b09672b480c3702d15fd69e9cc5bd1e \
     --hash=sha256:8a2568a8390a4ffb5af2f05e7642454e03b887e582d192b6316326974eab5d0f
     # via -r requirements.in
-packaging==26.1 \
-    --hash=sha256:5d9c0669c6285e491e0ced2eee587eaf67b670d94a19e94e3984a481aba6802f \
-    --hash=sha256:f042152b681c4bfac5cae2742a55e103d27ab2ec0f3d88037136b6bfe7c9c5de
+packaging==26.2 \
+    --hash=sha256:5fc45236b9446107ff2415ce77c807cee2862cb6fac22b8a73826d0693b0980e \
+    --hash=sha256:ff452ff5a3e828ce110190feff1178bb1f2ea2281fa2075aadb987c2fb221661
     # via -r requirements.in
 tomli==2.4.1 \
     --hash=sha256:01f520d4f53ef97964a240a035ec2a869fe1a37dde002b57ebc4417a27ccd853 \

From 166f7a97d09b41718a5e384d30c2c3428a533ac5 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Tue, 12 May 2026 18:35:41 +0000
Subject: [PATCH 177/178] Bump fast-uri from 3.1.0 to 3.1.2 (#25951)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Bumps [fast-uri](https://github.com/fastify/fast-uri) from 3.1.0 to
3.1.2.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/fastify/fast-uri/releases">fast-uri's
releases</a>.</em></p>
<blockquote>
<h2>v3.1.2</h2>
<h2>⚠️ Security Release</h2>
<ul>
<li>Fix for <a
href="https://github.com/fastify/fast-uri/security/advisories/GHSA-v39h-62p7-jpjc">https://github.com/fastify/fast-uri/security/advisories/GHSA-v39h-62p7-jpjc</a></li>
</ul>
<h2>What's Changed</h2>
<ul>
<li>Handle malformed fragment decoding as a parse error by <a
href="https://github.com/mcollina"><code>@​mcollina</code></a> in <a
href="https://redirect.github.com/fastify/fast-uri/pull/171">fastify/fast-uri#171</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/fastify/fast-uri/compare/v3.1.1...v3.1.2">https://github.com/fastify/fast-uri/compare/v3.1.1...v3.1.2</a></p>
<h2>v3.1.1</h2>
<h2>⚠️ Security Release</h2>
<ul>
<li>Fix for <a
href="https://github.com/fastify/fast-uri/security/advisories/GHSA-q3j6-qgpj-74h6">https://github.com/fastify/fast-uri/security/advisories/GHSA-q3j6-qgpj-74h6</a></li>
</ul>
<h2>What's Changed</h2>
<ul>
<li>build(deps-dev): bump tsd from 0.32.0 to 0.33.0 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/fastify/fast-uri/pull/148">fastify/fast-uri#148</a></li>
<li>build(deps): bump actions/checkout from 4 to 5 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/fastify/fast-uri/pull/149">fastify/fast-uri#149</a></li>
<li>chore(.npmrc): ignore scripts by <a
href="https://github.com/Fdawgs"><code>@​Fdawgs</code></a> in <a
href="https://redirect.github.com/fastify/fast-uri/pull/150">fastify/fast-uri#150</a></li>
<li>build(deps-dev): remove <code>@​fastify/pre-commit</code> by <a
href="https://github.com/Fdawgs"><code>@​Fdawgs</code></a> in <a
href="https://redirect.github.com/fastify/fast-uri/pull/151">fastify/fast-uri#151</a></li>
<li>build(deps): bump actions/setup-node from 4 to 5 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/fastify/fast-uri/pull/152">fastify/fast-uri#152</a></li>
<li>ci(ci): add concurrency config by <a
href="https://github.com/Fdawgs"><code>@​Fdawgs</code></a> in <a
href="https://redirect.github.com/fastify/fast-uri/pull/153">fastify/fast-uri#153</a></li>
<li>build(deps): bump actions/setup-node from 5 to 6 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/fastify/fast-uri/pull/154">fastify/fast-uri#154</a></li>
<li>build(deps): bump actions/checkout from 5 to 6 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/fastify/fast-uri/pull/156">fastify/fast-uri#156</a></li>
<li>chore(license): standardise license notice by <a
href="https://github.com/Fdawgs"><code>@​Fdawgs</code></a> in <a
href="https://redirect.github.com/fastify/fast-uri/pull/159">fastify/fast-uri#159</a></li>
<li>style: remove trailing whitespace by <a
href="https://github.com/Fdawgs"><code>@​Fdawgs</code></a> in <a
href="https://redirect.github.com/fastify/fast-uri/pull/161">fastify/fast-uri#161</a></li>
<li>ci: remove unused github files by <a
href="https://github.com/Tony133"><code>@​Tony133</code></a> in <a
href="https://redirect.github.com/fastify/fast-uri/pull/162">fastify/fast-uri#162</a></li>
<li>chore: update readme by <a
href="https://github.com/Tony133"><code>@​Tony133</code></a> in <a
href="https://redirect.github.com/fastify/fast-uri/pull/164">fastify/fast-uri#164</a></li>
<li>build(deps): bump
fastify/workflows/.github/workflows/plugins-ci-package-manager.yml from
5 to 6 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/fastify/fast-uri/pull/165">fastify/fast-uri#165</a></li>
<li>build(deps): bump fastify/workflows/.github/workflows/plugins-ci.yml
from 5 to 6 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/fastify/fast-uri/pull/166">fastify/fast-uri#166</a></li>
<li>build(deps-dev): bump neostandard from 0.12.2 to 0.13.0 by <a
href="https://github.com/dependabot"><code>@​dependabot</code></a>[bot]
in <a
href="https://redirect.github.com/fastify/fast-uri/pull/167">fastify/fast-uri#167</a></li>
<li>ci: add lock-threads workflow by <a
href="https://github.com/Fdawgs"><code>@​Fdawgs</code></a> in <a
href="https://redirect.github.com/fastify/fast-uri/pull/169">fastify/fast-uri#169</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/Tony133"><code>@​Tony133</code></a> made
their first contribution in <a
href="https://redirect.github.com/fastify/fast-uri/pull/162">fastify/fast-uri#162</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a
href="https://github.com/fastify/fast-uri/compare/v3.1.0...v3.1.1">https://github.com/fastify/fast-uri/compare/v3.1.0...v3.1.1</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/fastify/fast-uri/commit/919dd8ea7689fcc220d0d9b71307f5095e723ef9"><code>919dd8e</code></a>
Bumped v3.1.2</li>
<li><a
href="https://github.com/fastify/fast-uri/commit/c65ba573714af6b8e19e481d9444c27bc4355d07"><code>c65ba57</code></a>
fixup: linting</li>
<li><a
href="https://github.com/fastify/fast-uri/commit/6c86c17c3d76fb93aa3700ec6c0fa00faeb97293"><code>6c86c17</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/fastify/fast-uri/commit/a95158ad308df4d92bbde4eba699ce5165e9f796"><code>a95158a</code></a>
Handle malformed fragment decoding without throwing (<a
href="https://redirect.github.com/fastify/fast-uri/issues/171">#171</a>)</li>
<li><a
href="https://github.com/fastify/fast-uri/commit/cea547c91c6aae610041b17b75792ca4aa035a6d"><code>cea547c</code></a>
Bumped v3.1.1</li>
<li><a
href="https://github.com/fastify/fast-uri/commit/876ce79b662c3e5015e4e7dffe6f37752ad34f35"><code>876ce79</code></a>
Merge commit from fork</li>
<li><a
href="https://github.com/fastify/fast-uri/commit/dcdf690b71a7bb3a19887ada65a9ab160d83bcc0"><code>dcdf690</code></a>
ci: add lock-threads workflow (<a
href="https://redirect.github.com/fastify/fast-uri/issues/169">#169</a>)</li>
<li><a
href="https://github.com/fastify/fast-uri/commit/c860e6589b1ac346f66e114b4eadb9613768108c"><code>c860e65</code></a>
build(deps-dev): bump neostandard from 0.12.2 to 0.13.0 (<a
href="https://redirect.github.com/fastify/fast-uri/issues/167">#167</a>)</li>
<li><a
href="https://github.com/fastify/fast-uri/commit/9b4c6dc82fde0ca44e674403ece9185d85bb6d5f"><code>9b4c6dc</code></a>
build(deps): bump fastify/workflows/.github/workflows/plugins-ci.yml (<a
href="https://redirect.github.com/fastify/fast-uri/issues/166">#166</a>)</li>
<li><a
href="https://github.com/fastify/fast-uri/commit/85d09a9f7aa76b32c2bb005a90a71e144c361d24"><code>85d09a9</code></a>
build(deps): bump
fastify/workflows/.github/workflows/plugins-ci-package-mana...</li>
<li>Additional commits viewable in <a
href="https://github.com/fastify/fast-uri/compare/v3.1.0...v3.1.2">compare
view</a></li>
</ul>
</details>
<br />


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---
 package-lock.json | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 258726777690..82053df77576 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -6799,9 +6799,9 @@
             "dev": true
         },
         "node_modules/fast-uri": {
-            "version": "3.1.0",
-            "resolved": "https://registry.npmjs.org/fast-uri/-/fast-uri-3.1.0.tgz",
-            "integrity": "sha512-iPeeDKJSWf4IEOasVVrknXpaBV0IApz/gp7S2bb7Z4Lljbl2MGJRqInZiUrQwV16cpzw/D3S5j5Julj/gT52AA==",
+            "version": "3.1.2",
+            "resolved": "https://registry.npmjs.org/fast-uri/-/fast-uri-3.1.2.tgz",
+            "integrity": "sha512-rVjf7ArG3LTk+FS6Yw81V1DLuZl1bRbNrev6Tmd/9RaroeeRRJhAt7jg/6YFxbvAQXUCavSoZhPPj6oOx+5KjQ==",
             "dev": true,
             "funding": [
                 {
@@ -20667,9 +20667,9 @@
             "dev": true
         },
         "fast-uri": {
-            "version": "3.1.0",
-            "resolved": "https://registry.npmjs.org/fast-uri/-/fast-uri-3.1.0.tgz",
-            "integrity": "sha512-iPeeDKJSWf4IEOasVVrknXpaBV0IApz/gp7S2bb7Z4Lljbl2MGJRqInZiUrQwV16cpzw/D3S5j5Julj/gT52AA==",
+            "version": "3.1.2",
+            "resolved": "https://registry.npmjs.org/fast-uri/-/fast-uri-3.1.2.tgz",
+            "integrity": "sha512-rVjf7ArG3LTk+FS6Yw81V1DLuZl1bRbNrev6Tmd/9RaroeeRRJhAt7jg/6YFxbvAQXUCavSoZhPPj6oOx+5KjQ==",
             "dev": true
         },
         "fastest-levenshtein": {

From 1df2dfdc13b26ce94643be237cba1e839c2ecab7 Mon Sep 17 00:00:00 2001
From: Ben Villalobos <bevillal@microsoft.com>
Date: Thu, 14 May 2026 13:56:37 -0700
Subject: [PATCH 178/178] Register spam label closure (#25955)

Fixes https://github.com/microsoft/vscode-engineering/issues/2790
---
 .github/commands.json | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/.github/commands.json b/.github/commands.json
index 2fb6684a7ee6..171f33f380c3 100644
--- a/.github/commands.json
+++ b/.github/commands.json
@@ -153,5 +153,14 @@
 		"addLabel": "info-needed",
 		"removeLabel": "~confirmation-needed",
 		"comment": "Please diagnose the root cause of the issue by running the command `F1 > Help: Troubleshoot Issue` and following the instructions. Once you have done that, please update the issue with the results.\n\nHappy Coding!"
+	},
+    {
+		"type": "label",
+		"name": "~spam",
+		"removeLabel": "~spam",
+		"addLabel": "spam",
+		"action": "close",
+		"reason": "not_planned",
+		"comment": "Thank you for your submission. This issue has been closed as it doesn't meet our community guidelines or appears to be spam.\n\n**If you believe this was closed in error:**\n- Please review our [Code of Conduct](https://opensource.microsoft.com/codeofconduct/)\n- Ensure your issue contains a clear description of the problem or feature request\n- Feel free to open a new issue with appropriate detail if this was a legitimate concern\n\n**For legitimate issues, please include:**\n- Clear description of the problem\n- Steps to reproduce (for bugs)\n- Expected vs actual behavior\n- VS Code version and environment details\n\nThank you for helping us maintain a welcoming and productive community."
 	}
 ]