From 73272905b538ce781edda438877815d83db22fcf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Sun, 9 Aug 2026 15:59:10 +0200
Subject: [PATCH 01/56] Add `Describe`

---
 .../Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1     | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index fddd7a12ea6..25d02bdc1db 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -280,6 +280,9 @@ Describe "Get-Module -ListAvailable" -Tags "CI" {
     }
 }
 
+Describe 'Get-Module -ListAvaiable -(FullyQualifiedName|Name) <path> when argument is absolute path' -Tags "CI" {
+}
+
 Describe 'Get-Module -ListAvailable with path' -Tags "CI" {
     BeforeAll {
         $moduleName = 'Banana'

From f542dbe7941d2176f72a12c4037df537e24c2184 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Sun, 9 Aug 2026 15:59:29 +0200
Subject: [PATCH 02/56] Add `BeforeAll`

---
 .../Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1     | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 25d02bdc1db..b9b27dc9a68 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -281,6 +281,9 @@ Describe "Get-Module -ListAvailable" -Tags "CI" {
 }
 
 Describe 'Get-Module -ListAvaiable -(FullyQualifiedName|Name) <path> when argument is absolute path' -Tags "CI" {
+    BeforeAll {
+        $psModulePath = ($env:PSModulePath -split ';')[0]
+    }
 }
 
 Describe 'Get-Module -ListAvailable with path' -Tags "CI" {

From b4f6c5c9e954684b45a03fd5bb24d3ed54ebf38f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Sun, 9 Aug 2026 15:59:39 +0200
Subject: [PATCH 03/56] Add test

---
 .../Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index b9b27dc9a68..1242b0796fd 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -284,6 +284,13 @@ Describe 'Get-Module -ListAvaiable -(FullyQualifiedName|Name) <path> when argume
     BeforeAll {
         $psModulePath = ($env:PSModulePath -split ';')[0]
     }
+
+    It 'wrongly returns module information instead of $null or error for missing script module' {
+        $path = [System.IO.Path]::GetFullPath("$pwd\missing.psm1")
+        Test-Path $path | Should -BeFalse
+        Get-Module -ListAvailable -FullyQualifiedName $path | Should -BeOfType ([System.Management.Automation.PSModuleInfo])
+        Get-Module -ListAvailable -Name $path | Should -BeOfType ([System.Management.Automation.PSModuleInfo])
+    }
 }
 
 Describe 'Get-Module -ListAvailable with path' -Tags "CI" {

From a8390fe95601a7fe6440c8a8b4831bbd0925eaea Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Sun, 9 Aug 2026 15:59:47 +0200
Subject: [PATCH 04/56] Add test

---
 .../Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 1242b0796fd..20916d88d9f 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -291,6 +291,13 @@ Describe 'Get-Module -ListAvaiable -(FullyQualifiedName|Name) <path> when argume
         Get-Module -ListAvailable -FullyQualifiedName $path | Should -BeOfType ([System.Management.Automation.PSModuleInfo])
         Get-Module -ListAvailable -Name $path | Should -BeOfType ([System.Management.Automation.PSModuleInfo])
     }
+
+    It 'wrongly returns module information instead of $null or error for missing script module under $env:PSModulePath' {
+        $path = [System.IO.Path]::GetFullPath("$psModulePath\missing.psm1")
+        Test-Path $path | Should -BeFalse
+        Get-Module -ListAvailable -FullyQualifiedName $path | Should -BeOfType ([System.Management.Automation.PSModuleInfo])
+        Get-Module -ListAvailable -Name $path | Should -BeOfType ([System.Management.Automation.PSModuleInfo])
+    }
 }
 
 Describe 'Get-Module -ListAvailable with path' -Tags "CI" {

From 2eaf4399b1c6980e59f4a1e6d772e1f060af91de Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Sun, 9 Aug 2026 15:59:57 +0200
Subject: [PATCH 05/56] Add test

---
 .../Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 20916d88d9f..c9a23005b88 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -298,6 +298,13 @@ Describe 'Get-Module -ListAvaiable -(FullyQualifiedName|Name) <path> when argume
         Get-Module -ListAvailable -FullyQualifiedName $path | Should -BeOfType ([System.Management.Automation.PSModuleInfo])
         Get-Module -ListAvailable -Name $path | Should -BeOfType ([System.Management.Automation.PSModuleInfo])
     }
+
+    It 'writes error for missing manifest module' {
+        $path = [System.IO.Path]::GetFullPath("$pwd\missing")
+        Test-Path $path | Should -BeFalse
+        { Get-Module -ListAvailable -FullyQualifiedName $path -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
+        { Get-Module -ListAvailable -Name $path -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
+    }
 }
 
 Describe 'Get-Module -ListAvailable with path' -Tags "CI" {

From e946e4d1b0c68add4dd74476728ea615fe2e7ca5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Sun, 9 Aug 2026 16:00:08 +0200
Subject: [PATCH 06/56] Add test

---
 .../Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index c9a23005b88..50ead6d9802 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -305,6 +305,13 @@ Describe 'Get-Module -ListAvaiable -(FullyQualifiedName|Name) <path> when argume
         { Get-Module -ListAvailable -FullyQualifiedName $path -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
         { Get-Module -ListAvailable -Name $path -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
     }
+
+    It 'writes error for missing manifest module under $env:PSModulePath' {
+        $path = [System.IO.Path]::GetFullPath("$psModulePath\missing")
+        Test-Path $path | Should -BeFalse
+        { Get-Module -ListAvailable -FullyQualifiedName $path -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
+        { Get-Module -ListAvailable -Name $path -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
+    }
 }
 
 Describe 'Get-Module -ListAvailable with path' -Tags "CI" {

From 8448b34f0bdbc348f6c035b2cc16829b6f291ccc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Sun, 9 Aug 2026 16:00:34 +0200
Subject: [PATCH 07/56] Add new `Context`

---
 .../Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1     | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 50ead6d9802..cf23cbb3887 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -312,6 +312,9 @@ Describe 'Get-Module -ListAvaiable -(FullyQualifiedName|Name) <path> when argume
         { Get-Module -ListAvailable -FullyQualifiedName $path -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
         { Get-Module -ListAvailable -Name $path -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
     }
+
+    Context 'Locating existing script module' {
+    }
 }
 
 Describe 'Get-Module -ListAvailable with path' -Tags "CI" {

From 231af68a5c6f714024bc8d886e3882eada9eafd3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Sun, 9 Aug 2026 16:00:51 +0200
Subject: [PATCH 08/56] Add `BeforeAll` and `AfterAll`

---
 .../Get-Module.Tests.ps1                       | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index cf23cbb3887..068f4b1f119 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -314,6 +314,24 @@ Describe 'Get-Module -ListAvaiable -(FullyQualifiedName|Name) <path> when argume
     }
 
     Context 'Locating existing script module' {
+        BeforeAll {
+            $psModulePath = ($env:PSModulePath -split ';')[0]
+
+            # Script modules
+            #
+            # Under $env:PSModulePath. TODO: Is this a supported scenario?
+            $inPSModulePathLooseFilePath = Join-Path $psModulePath 'loose.psm1'
+            New-Item -ItemType File -Force $inPSModulePathLooseFilePath > $null
+            #
+            # Under $pwd
+            $inPSModulePathLooseFilePathPwd = Join-Path $pwd 'loose.psm1'
+            New-Item -ItemType File -Force $inPSModulePathLooseFilePathPwd > $null
+        }
+
+        AfterAll {
+            Remove-Item $inPSModulePathLooseFilePath
+            Remove-Item $inPSModulePathLooseFilePathPwd
+        }
     }
 }
 

From 6b75ee814cd1ec38701672d9a7b42285dd0b321c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Sun, 9 Aug 2026 16:01:03 +0200
Subject: [PATCH 09/56] Add test

---
 .../Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 068f4b1f119..d69e11ddc54 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -332,6 +332,13 @@ Describe 'Get-Module -ListAvaiable -(FullyQualifiedName|Name) <path> when argume
             Remove-Item $inPSModulePathLooseFilePath
             Remove-Item $inPSModulePathLooseFilePathPwd
         }
+
+        # TODO: This looks like a bug.
+        It 'wrongly writes error instead of returning module information for existing script module under $env:PSModulePath using basename' {
+            Test-Path "$psModulePath\loose.psm1" | Should -BeTrue
+            { Get-Module -ListAvailable -Name "$psModulePath\loose" -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
+            { Get-Module -ListAvailable -FullyQualifiedName "$psModulePath\loose" -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
+        }
     }
 }
 

From 2b52fb6d8e9ce2f36f1f52e2e54a32cf3a3e9e2b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Sun, 9 Aug 2026 16:01:15 +0200
Subject: [PATCH 10/56] Add test

---
 .../Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index d69e11ddc54..598db5a504b 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -339,6 +339,13 @@ Describe 'Get-Module -ListAvaiable -(FullyQualifiedName|Name) <path> when argume
             { Get-Module -ListAvailable -Name "$psModulePath\loose" -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
             { Get-Module -ListAvailable -FullyQualifiedName "$psModulePath\loose" -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
         }
+
+        # TODO: This looks like a bug.
+        It 'wrongly writes error instead of returning module information for existing script module using basename' {
+            Test-Path "$pwd\loose.psm1" | Should -BeTrue
+            { Get-Module -ListAvailable -Name "$pwd\loose" -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
+            { Get-Module -ListAvailable -FullyQualifiedName "$pwd\loose" -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
+        }
     }
 }
 

From 6258e72179508920a2f65f28c43b4a6d0b2266b1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Mon, 10 Aug 2026 06:40:33 +0200
Subject: [PATCH 11/56] Review: Avoid Windows-only convention

---
 .../Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1    | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 598db5a504b..c5c0268af50 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -282,7 +282,7 @@ Describe "Get-Module -ListAvailable" -Tags "CI" {
 
 Describe 'Get-Module -ListAvaiable -(FullyQualifiedName|Name) <path> when argument is absolute path' -Tags "CI" {
     BeforeAll {
-        $psModulePath = ($env:PSModulePath -split ';')[0]
+        $psModulePath = ($env:PSModulePath -split [System.IO.Path]::PathSeparator)[0]
     }
 
     It 'wrongly returns module information instead of $null or error for missing script module' {
@@ -315,7 +315,7 @@ Describe 'Get-Module -ListAvaiable -(FullyQualifiedName|Name) <path> when argume
 
     Context 'Locating existing script module' {
         BeforeAll {
-            $psModulePath = ($env:PSModulePath -split ';')[0]
+            $psModulePath = ($env:PSModulePath -split [System.IO.Path]::PathSeparator)[0]
 
             # Script modules
             #

From 95e9342c701ebbecdfaafade2b106927c4d7b0cd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Mon, 10 Aug 2026 06:46:16 +0200
Subject: [PATCH 12/56] Review: Use `Join-Path`

---
 .../Get-Module.Tests.ps1                      | 20 +++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index c5c0268af50..ebb55897926 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -286,28 +286,28 @@ Describe 'Get-Module -ListAvaiable -(FullyQualifiedName|Name) <path> when argume
     }
 
     It 'wrongly returns module information instead of $null or error for missing script module' {
-        $path = [System.IO.Path]::GetFullPath("$pwd\missing.psm1")
+        $path = [System.IO.Path]::GetFullPath((Join-Path $pwd missing.psm1))
         Test-Path $path | Should -BeFalse
         Get-Module -ListAvailable -FullyQualifiedName $path | Should -BeOfType ([System.Management.Automation.PSModuleInfo])
         Get-Module -ListAvailable -Name $path | Should -BeOfType ([System.Management.Automation.PSModuleInfo])
     }
 
     It 'wrongly returns module information instead of $null or error for missing script module under $env:PSModulePath' {
-        $path = [System.IO.Path]::GetFullPath("$psModulePath\missing.psm1")
+        $path = [System.IO.Path]::GetFullPath((Join-Path $psModulePath missing.psm1))
         Test-Path $path | Should -BeFalse
         Get-Module -ListAvailable -FullyQualifiedName $path | Should -BeOfType ([System.Management.Automation.PSModuleInfo])
         Get-Module -ListAvailable -Name $path | Should -BeOfType ([System.Management.Automation.PSModuleInfo])
     }
 
     It 'writes error for missing manifest module' {
-        $path = [System.IO.Path]::GetFullPath("$pwd\missing")
+        $path = [System.IO.Path]::GetFullPath((Join-Path $pwd missing))
         Test-Path $path | Should -BeFalse
         { Get-Module -ListAvailable -FullyQualifiedName $path -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
         { Get-Module -ListAvailable -Name $path -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
     }
 
     It 'writes error for missing manifest module under $env:PSModulePath' {
-        $path = [System.IO.Path]::GetFullPath("$psModulePath\missing")
+        $path = [System.IO.Path]::GetFullPath((Join-Path $psModulePath missing))
         Test-Path $path | Should -BeFalse
         { Get-Module -ListAvailable -FullyQualifiedName $path -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
         { Get-Module -ListAvailable -Name $path -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
@@ -335,16 +335,16 @@ Describe 'Get-Module -ListAvaiable -(FullyQualifiedName|Name) <path> when argume
 
         # TODO: This looks like a bug.
         It 'wrongly writes error instead of returning module information for existing script module under $env:PSModulePath using basename' {
-            Test-Path "$psModulePath\loose.psm1" | Should -BeTrue
-            { Get-Module -ListAvailable -Name "$psModulePath\loose" -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
-            { Get-Module -ListAvailable -FullyQualifiedName "$psModulePath\loose" -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
+            Test-Path (Join-Path $psModulePath loose.psm1) | Should -BeTrue
+            { Get-Module -ListAvailable -Name (Join-Path $psModulePath loose) -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
+            { Get-Module -ListAvailable -FullyQualifiedName (Join-Path $psModulePath loose) -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
         }
 
         # TODO: This looks like a bug.
         It 'wrongly writes error instead of returning module information for existing script module using basename' {
-            Test-Path "$pwd\loose.psm1" | Should -BeTrue
-            { Get-Module -ListAvailable -Name "$pwd\loose" -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
-            { Get-Module -ListAvailable -FullyQualifiedName "$pwd\loose" -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
+            Test-Path (Join-Path $pwd loose.psm1) | Should -BeTrue
+            { Get-Module -ListAvailable -Name (Join-Path $pwd loose) -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
+            { Get-Module -ListAvailable -FullyQualifiedName (Join-Path $pwd loose) -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
         }
     }
 }

From 8dbc54d802b2facd1fa605fa47701601757f414b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Mon, 10 Aug 2026 07:09:11 +0200
Subject: [PATCH 13/56] Review: Fix `Should -Throw` tests

---
 .../Get-Module.Tests.ps1                      | 32 ++++++++++++++-----
 1 file changed, 24 insertions(+), 8 deletions(-)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index ebb55897926..a4a823554b5 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -302,15 +302,23 @@ Describe 'Get-Module -ListAvaiable -(FullyQualifiedName|Name) <path> when argume
     It 'writes error for missing manifest module' {
         $path = [System.IO.Path]::GetFullPath((Join-Path $pwd missing))
         Test-Path $path | Should -BeFalse
-        { Get-Module -ListAvailable -FullyQualifiedName $path -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
-        { Get-Module -ListAvailable -Name $path -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
+
+        $err = { Get-Module -ListAvailable -FullyQualifiedName $path -ErrorAction Stop } | Should -Throw -PassThru
+        $err.Exception.Message | Should -BeLike '*Update the Name parameter*'
+
+        $err = { Get-Module -ListAvailable -Name $path -ErrorAction Stop } | Should -Throw -PassThru
+        $err.Exception.Message | Should -BeLike '*Update the Name parameter*'
     }
 
     It 'writes error for missing manifest module under $env:PSModulePath' {
         $path = [System.IO.Path]::GetFullPath((Join-Path $psModulePath missing))
         Test-Path $path | Should -BeFalse
-        { Get-Module -ListAvailable -FullyQualifiedName $path -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
-        { Get-Module -ListAvailable -Name $path -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
+
+        $err = { Get-Module -ListAvailable -FullyQualifiedName $path -ErrorAction Stop } | Should -Throw -PassThru
+        $err.Exception.Message | Should -BeLike '*Update the Name parameter*'
+
+        $err = { Get-Module -ListAvailable -Name $path -ErrorAction Stop } | Should -Throw -PassThru
+        $err.Exception.Message | Should -BeLike '*Update the Name parameter*'
     }
 
     Context 'Locating existing script module' {
@@ -336,15 +344,23 @@ Describe 'Get-Module -ListAvaiable -(FullyQualifiedName|Name) <path> when argume
         # TODO: This looks like a bug.
         It 'wrongly writes error instead of returning module information for existing script module under $env:PSModulePath using basename' {
             Test-Path (Join-Path $psModulePath loose.psm1) | Should -BeTrue
-            { Get-Module -ListAvailable -Name (Join-Path $psModulePath loose) -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
-            { Get-Module -ListAvailable -FullyQualifiedName (Join-Path $psModulePath loose) -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
+
+            $err = { Get-Module -ListAvailable -Name (Join-Path $psModulePath loose) -ErrorAction Stop } | Should -Throw -PassThru
+            $err.Exception.Message | Should -BeLike '*Update the Name parameter*'
+
+            $err = { Get-Module -ListAvailable -FullyQualifiedName (Join-Path $psModulePath loose) -ErrorAction Stop } | Should -Throw -PassThru
+            $err.Exception.Message | Should -BeLike '*Update the Name parameter*'
         }
 
         # TODO: This looks like a bug.
         It 'wrongly writes error instead of returning module information for existing script module using basename' {
             Test-Path (Join-Path $pwd loose.psm1) | Should -BeTrue
-            { Get-Module -ListAvailable -Name (Join-Path $pwd loose) -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
-            { Get-Module -ListAvailable -FullyQualifiedName (Join-Path $pwd loose) -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
+
+            $err = { Get-Module -ListAvailable -Name (Join-Path $pwd loose) -ErrorAction Stop } | Should -Throw -PassThru
+            $err.Exception.Message | Should -BeLike '*Update the Name parameter*'
+
+            $err = { Get-Module -ListAvailable -FullyQualifiedName (Join-Path $pwd loose) -ErrorAction Stop } | Should -Throw -PassThru
+            $err.Exception.Message | Should -BeLike '*Update the Name parameter*'
         }
     }
 }

From bb7d1db6d305e4b5c76adc2e8922d6ac08f867ab Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Mon, 10 Aug 2026 07:10:23 +0200
Subject: [PATCH 14/56] Review: Typo

---
 .../Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1      | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index a4a823554b5..5211077b96b 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -280,7 +280,7 @@ Describe "Get-Module -ListAvailable" -Tags "CI" {
     }
 }
 
-Describe 'Get-Module -ListAvaiable -(FullyQualifiedName|Name) <path> when argument is absolute path' -Tags "CI" {
+Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argument is absolute path' -Tags "CI" {
     BeforeAll {
         $psModulePath = ($env:PSModulePath -split [System.IO.Path]::PathSeparator)[0]
     }

From 0b6503e61fef5d604bc6e0acb547c62438941c7f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Mon, 10 Aug 2026 07:15:09 +0200
Subject: [PATCH 15/56] Review: Use dedicated $env:PSModulePath for tests

---
 .../Microsoft.PowerShell.Core/Get-Module.Tests.ps1        | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 5211077b96b..05c0b615702 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -282,7 +282,13 @@ Describe "Get-Module -ListAvailable" -Tags "CI" {
 
 Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argument is absolute path' -Tags "CI" {
     BeforeAll {
-        $psModulePath = ($env:PSModulePath -split [System.IO.Path]::PathSeparator)[0]
+        $oldPSModulePath = $env:PSModulePath
+        $psModulePath = New-Item -ItemType Directory (Join-Path $TestDrive modules)
+        $env:PSModulePath = $psModulePath
+    }
+
+    AfterAll {
+        $env:PSModulePath = $oldPSModulePath
     }
 
     It 'wrongly returns module information instead of $null or error for missing script module' {

From c6d6a31faf4ce0814ddf64d71f8bd29318dedf4b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Mon, 10 Aug 2026 07:18:33 +0200
Subject: [PATCH 16/56] Refactor

---
 .../Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1      | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 05c0b615702..2017872ba16 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -329,7 +329,7 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
 
     Context 'Locating existing script module' {
         BeforeAll {
-            $psModulePath = ($env:PSModulePath -split [System.IO.Path]::PathSeparator)[0]
+            $psModulePath = $env:PSModulePath
 
             # Script modules
             #

From 45075a96eb1496d6af5401fb57e06f7777a24a16 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Mon, 10 Aug 2026 21:58:49 +0200
Subject: [PATCH 17/56] Fix name

---
 .../Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1  | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 2017872ba16..5ff8e078008 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -338,13 +338,13 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
             New-Item -ItemType File -Force $inPSModulePathLooseFilePath > $null
             #
             # Under $pwd
-            $inPSModulePathLooseFilePathPwd = Join-Path $pwd 'loose.psm1'
-            New-Item -ItemType File -Force $inPSModulePathLooseFilePathPwd > $null
+            $inCwdLooseFilePath = Join-Path $pwd 'loose.psm1'
+            New-Item -ItemType File -Force $inCwdLooseFilePath > $null
         }
 
         AfterAll {
             Remove-Item $inPSModulePathLooseFilePath
-            Remove-Item $inPSModulePathLooseFilePathPwd
+            Remove-Item $inCwdLooseFilePath
         }
 
         # TODO: This looks like a bug.

From 0f4e5fbeefabb75e04240c5981b8637802e99f31 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Tue, 11 Aug 2026 07:05:59 +0200
Subject: [PATCH 18/56] Refactor: Use single variable for the same data

---
 .../Get-Module.Tests.ps1                        | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 5ff8e078008..18aea8ccc16 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -283,8 +283,7 @@ Describe "Get-Module -ListAvailable" -Tags "CI" {
 Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argument is absolute path' -Tags "CI" {
     BeforeAll {
         $oldPSModulePath = $env:PSModulePath
-        $psModulePath = New-Item -ItemType Directory (Join-Path $TestDrive modules)
-        $env:PSModulePath = $psModulePath
+        $env:PSModulePath = New-Item -ItemType Directory (Join-Path $TestDrive modules)
     }
 
     AfterAll {
@@ -299,7 +298,7 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
     }
 
     It 'wrongly returns module information instead of $null or error for missing script module under $env:PSModulePath' {
-        $path = [System.IO.Path]::GetFullPath((Join-Path $psModulePath missing.psm1))
+        $path = [System.IO.Path]::GetFullPath((Join-Path $env:PSModulePath missing.psm1))
         Test-Path $path | Should -BeFalse
         Get-Module -ListAvailable -FullyQualifiedName $path | Should -BeOfType ([System.Management.Automation.PSModuleInfo])
         Get-Module -ListAvailable -Name $path | Should -BeOfType ([System.Management.Automation.PSModuleInfo])
@@ -317,7 +316,7 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
     }
 
     It 'writes error for missing manifest module under $env:PSModulePath' {
-        $path = [System.IO.Path]::GetFullPath((Join-Path $psModulePath missing))
+        $path = [System.IO.Path]::GetFullPath((Join-Path $env:PSModulePath missing))
         Test-Path $path | Should -BeFalse
 
         $err = { Get-Module -ListAvailable -FullyQualifiedName $path -ErrorAction Stop } | Should -Throw -PassThru
@@ -329,12 +328,12 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
 
     Context 'Locating existing script module' {
         BeforeAll {
-            $psModulePath = $env:PSModulePath
+            $env:PSModulePath = $env:PSModulePath
 
             # Script modules
             #
             # Under $env:PSModulePath. TODO: Is this a supported scenario?
-            $inPSModulePathLooseFilePath = Join-Path $psModulePath 'loose.psm1'
+            $inPSModulePathLooseFilePath = Join-Path $env:PSModulePath 'loose.psm1'
             New-Item -ItemType File -Force $inPSModulePathLooseFilePath > $null
             #
             # Under $pwd
@@ -349,12 +348,12 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
 
         # TODO: This looks like a bug.
         It 'wrongly writes error instead of returning module information for existing script module under $env:PSModulePath using basename' {
-            Test-Path (Join-Path $psModulePath loose.psm1) | Should -BeTrue
+            Test-Path (Join-Path $env:PSModulePath loose.psm1) | Should -BeTrue
 
-            $err = { Get-Module -ListAvailable -Name (Join-Path $psModulePath loose) -ErrorAction Stop } | Should -Throw -PassThru
+            $err = { Get-Module -ListAvailable -Name (Join-Path $env:PSModulePath loose) -ErrorAction Stop } | Should -Throw -PassThru
             $err.Exception.Message | Should -BeLike '*Update the Name parameter*'
 
-            $err = { Get-Module -ListAvailable -FullyQualifiedName (Join-Path $psModulePath loose) -ErrorAction Stop } | Should -Throw -PassThru
+            $err = { Get-Module -ListAvailable -FullyQualifiedName (Join-Path $env:PSModulePath loose) -ErrorAction Stop } | Should -Throw -PassThru
             $err.Exception.Message | Should -BeLike '*Update the Name parameter*'
         }
 

From c56d882160b3819cbb704da71bef9b65798e9c17 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Tue, 11 Aug 2026 07:06:24 +0200
Subject: [PATCH 19/56] Consistent formatting

---
 .../Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1      | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 18aea8ccc16..0e519f43d64 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -293,6 +293,7 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
     It 'wrongly returns module information instead of $null or error for missing script module' {
         $path = [System.IO.Path]::GetFullPath((Join-Path $pwd missing.psm1))
         Test-Path $path | Should -BeFalse
+
         Get-Module -ListAvailable -FullyQualifiedName $path | Should -BeOfType ([System.Management.Automation.PSModuleInfo])
         Get-Module -ListAvailable -Name $path | Should -BeOfType ([System.Management.Automation.PSModuleInfo])
     }
@@ -300,6 +301,7 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
     It 'wrongly returns module information instead of $null or error for missing script module under $env:PSModulePath' {
         $path = [System.IO.Path]::GetFullPath((Join-Path $env:PSModulePath missing.psm1))
         Test-Path $path | Should -BeFalse
+
         Get-Module -ListAvailable -FullyQualifiedName $path | Should -BeOfType ([System.Management.Automation.PSModuleInfo])
         Get-Module -ListAvailable -Name $path | Should -BeOfType ([System.Management.Automation.PSModuleInfo])
     }

From 8a0a003db3c3eda8e20a0cd1d227267e09b2d510 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Tue, 11 Aug 2026 07:09:07 +0200
Subject: [PATCH 20/56] Refactor: Consolidate variables

---
 .../Microsoft.PowerShell.Core/Get-Module.Tests.ps1     | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 0e519f43d64..23947810929 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -351,22 +351,24 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
         # TODO: This looks like a bug.
         It 'wrongly writes error instead of returning module information for existing script module under $env:PSModulePath using basename' {
             Test-Path (Join-Path $env:PSModulePath loose.psm1) | Should -BeTrue
+            $path = Join-Path $env:PSModulePath loose
 
-            $err = { Get-Module -ListAvailable -Name (Join-Path $env:PSModulePath loose) -ErrorAction Stop } | Should -Throw -PassThru
+            $err = { Get-Module -ListAvailable -Name $path -ErrorAction Stop } | Should -Throw -PassThru
             $err.Exception.Message | Should -BeLike '*Update the Name parameter*'
 
-            $err = { Get-Module -ListAvailable -FullyQualifiedName (Join-Path $env:PSModulePath loose) -ErrorAction Stop } | Should -Throw -PassThru
+            $err = { Get-Module -ListAvailable -FullyQualifiedName $path -ErrorAction Stop } | Should -Throw -PassThru
             $err.Exception.Message | Should -BeLike '*Update the Name parameter*'
         }
 
         # TODO: This looks like a bug.
         It 'wrongly writes error instead of returning module information for existing script module using basename' {
             Test-Path (Join-Path $pwd loose.psm1) | Should -BeTrue
+            $path = Join-Path $pwd loose
 
-            $err = { Get-Module -ListAvailable -Name (Join-Path $pwd loose) -ErrorAction Stop } | Should -Throw -PassThru
+            $err = { Get-Module -ListAvailable -Name $path -ErrorAction Stop } | Should -Throw -PassThru
             $err.Exception.Message | Should -BeLike '*Update the Name parameter*'
 
-            $err = { Get-Module -ListAvailable -FullyQualifiedName (Join-Path $pwd loose) -ErrorAction Stop } | Should -Throw -PassThru
+            $err = { Get-Module -ListAvailable -FullyQualifiedName $path -ErrorAction Stop } | Should -Throw -PassThru
             $err.Exception.Message | Should -BeLike '*Update the Name parameter*'
         }
     }

From c2bf6cff4d382e8b50fcf2e6a07e8100e4587020 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Tue, 11 Aug 2026 07:40:58 +0200
Subject: [PATCH 21/56] Cleanup

---
 .../Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1      | 2 --
 1 file changed, 2 deletions(-)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 23947810929..17bc6e2526a 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -330,8 +330,6 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
 
     Context 'Locating existing script module' {
         BeforeAll {
-            $env:PSModulePath = $env:PSModulePath
-
             # Script modules
             #
             # Under $env:PSModulePath. TODO: Is this a supported scenario?

From 7dd54977b4a0fa611d17260b3b8142a99ba2a98f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Tue, 11 Aug 2026 07:42:39 +0200
Subject: [PATCH 22/56] Add test

---
 .../Microsoft.PowerShell.Core/Get-Module.Tests.ps1  | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 17bc6e2526a..9f4daa703fd 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -369,6 +369,19 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
             $err = { Get-Module -ListAvailable -FullyQualifiedName $path -ErrorAction Stop } | Should -Throw -PassThru
             $err.Exception.Message | Should -BeLike '*Update the Name parameter*'
         }
+
+        It 'returns module information for existing script module using file name' {
+            $path = Join-Path $pwd loose.psm1
+            Test-Path $path | Should -BeTrue
+
+            $actual = Get-Module -ListAvailable -Name $path
+            $actual | Should -HaveCount 1
+            $actual[0].Path | Should -BeExactly $path
+
+            $actual = Get-Module -ListAvailable -FullyQualifiedName $path
+            $actual | Should -HaveCount 1
+            $actual[0].Path | Should -BeExactly $path
+        }
     }
 }
 

From 92c622fd5f0816b46d51ba05bb1c3ca4ee66fda5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Tue, 11 Aug 2026 07:43:09 +0200
Subject: [PATCH 23/56] Add test

---
 .../Microsoft.PowerShell.Core/Get-Module.Tests.ps1  | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 9f4daa703fd..ee2566e287a 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -382,6 +382,19 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
             $actual | Should -HaveCount 1
             $actual[0].Path | Should -BeExactly $path
         }
+
+        It 'returns module information for existing script module under $env:PSModulePath using file name' {
+            $path = Join-Path $env:PSModulePath loose.psm1
+            Test-Path $path | Should -BeTrue
+
+            $actual = Get-Module -ListAvailable -Name $path
+            $actual | Should -HaveCount 1
+            $actual[0].Path | Should -BeExactly $path
+
+            $actual = Get-Module -ListAvailable -FullyQualifiedName $path
+            $actual | Should -HaveCount 1
+            $actual[0].Path | Should -BeExactly $path
+        }
     }
 }
 

From 4087b48801de1bf9b4350ecd2e9d34f4ce8a8bad Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Tue, 11 Aug 2026 07:43:26 +0200
Subject: [PATCH 24/56] Add `Context`

---
 .../Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1     | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index ee2566e287a..535ef997cea 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -396,6 +396,9 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
             $actual[0].Path | Should -BeExactly $path
         }
     }
+
+    Context 'When argument contains wildcards' {
+    }
 }
 
 Describe 'Get-Module -ListAvailable with path' -Tags "CI" {

From 3dbf91e4a324f036a17e9675e64c5cdfd3e631d2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Tue, 11 Aug 2026 07:43:43 +0200
Subject: [PATCH 25/56] Add `BeforeAll` and `AfterAll`

---
 .../Get-Module.Tests.ps1                      | 55 +++++++++++++++++++
 1 file changed, 55 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 535ef997cea..7e637e01f3f 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -398,6 +398,61 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
     }
 
     Context 'When argument contains wildcards' {
+        BeforeAll {
+            # Manifest modules under $env:PSModulePath
+            #
+            # Versioned, manifest
+            $inPSModulePathWithManifestFileName = 'existing'
+            $inPSModulePatWithManifestDirectory = Join-Path $env:PSModulePath $inPSModulePathWithManifestFileName '0.0.1'
+            $inPSModulePathWithManifestFilePath = Join-Path $inPSModulePatWithManifestDirectory "$inPSModulePathWithManifestFileName.psm1"
+            New-Item -ItemType File -Force $inPSModulePathWithManifestFilePath > $null
+            New-ModuleManifest -Path (Join-Path $inPSModulePatWithManifestDirectory "$inPSModulePathWithManifestFileName.psd1")
+            #
+            # Versioned, manifest
+            $inPSModulePathWithManifestFileName2 = 'existing2'
+            $inPSModulePatWithManifestDirectory2 = Join-Path $env:PSModulePath $inPSModulePathWithManifestFileName2 '0.0.1'
+            $inPSModulePathWithManifestFilePath2 = Join-Path $inPSModulePatWithManifestDirectory2 "$inPSModulePathWithManifestFileName2.psm1"
+            New-Item -ItemType File -Force $inPSModulePathWithManifestFilePath2 > $null
+            New-ModuleManifest -Path (Join-Path $inPSModulePatWithManifestDirectory2 "$inPSModulePathWithManifestFileName2.psd1")
+
+            # Manifest modules under $pwd
+            #
+            # Versioned, manifest
+            $inCwdhWithManifestFileName = 'existing'
+            $inCwdWithManifestDirectory = Join-Path $pwd $inCwdhWithManifestFileName '0.0.1'
+            $inCwdWithManifestFilePath = Join-Path $inCwdWithManifestDirectory "$inCwdhWithManifestFileName.psm1"
+            New-Item -ItemType File -Force $inCwdWithManifestFilePath > $null
+            New-ModuleManifest -Path (Join-Path $inCwdWithManifestDirectory "$inCwdhWithManifestFileName.psd1")
+            #
+            # Versioned, manifest
+            $inCwdWithManifestFileName2 = 'existing2'
+            $inCwdWithManifestDirectory2 = Join-Path $pwd $inCwdWithManifestFileName2 '0.0.1'
+            $inCwdWithManifestFilePath2 = Join-Path $inCwdWithManifestDirectory2 "$inCwdWithManifestFileName2.psm1"
+            New-Item -ItemType File -Force $inCwdWithManifestFilePath2 > $null
+            New-ModuleManifest -Path (Join-Path $inCwdWithManifestDirectory2 "$inCwdWithManifestFileName2.psd1")
+
+            # Script modules
+            #
+            # Under $env:PSModulePath. TODO: Is this a supported scenario?
+            $inPSModulePathLooseFilePath = Join-Path $env:PSModulePath 'loose.psm1'
+            New-Item -ItemType File -Force $inPSModulePathLooseFilePath > $null
+            #
+            #
+            # Under $pwd
+            $inCwdFilePath = Join-Path $pwd 'loose.psm1'
+            New-Item -ItemType File -Force $inCwdFilePath > $null
+        }
+
+        AfterAll {
+            Remove-Item -Force -Recurse $inPSModulePatWithManifestDirectory
+            Remove-Item -Force -Recurse $inPSModulePatWithManifestDirectory2
+
+            Remove-Item -Force -Recurse $inCwdWithManifestDirectory
+            Remove-Item -Force -Recurse $inCwdWithManifestDirectory2
+
+            Remove-Item $inPSModulePathLooseFilePath
+            Remove-Item $inCwdFilePath
+        }
     }
 }
 

From dbf05874b590a66837817808a7d52500a0e8cc82 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Tue, 11 Aug 2026 07:43:49 +0200
Subject: [PATCH 26/56] Add test

---
 .../Microsoft.PowerShell.Core/Get-Module.Tests.ps1   | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 7e637e01f3f..9f2fe400f39 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -453,6 +453,18 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
             Remove-Item $inPSModulePathLooseFilePath
             Remove-Item $inCwdFilePath
         }
+
+        It 'returns existing manifest modules under $env:PSModulePath when using the -Name parameter' {
+            $moduleManifestPath1 = Join-Path $env:PSModulePath existing 0.0.1,existing.psd1
+            $moduleManifestPath2 = Join-Path $env:PSModulePath existing2 0.0.1,existing2.psd1
+            Test-Path $moduleManifestPath1 | Should -BeTrue
+            Test-Path $moduleManifestPath2 | Should -BeTrue
+
+            $actual = Get-Module -ListAvailable -Name (Join-Path $env:PSModulePath 'existing*')
+            $actual | Should -HaveCount 2
+            $actual[0].Path | Should -BeExactly $moduleManifestPath1
+            $actual[1].Path | Should -BeExactly $moduleManifestPath2
+        }
     }
 }
 

From 592a4a116c76815bac687837662b8b3735d3e891 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Tue, 11 Aug 2026 07:43:56 +0200
Subject: [PATCH 27/56] Add test

---
 .../Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1  | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 9f2fe400f39..c7046e2c4e2 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -465,6 +465,12 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
             $actual[0].Path | Should -BeExactly $moduleManifestPath1
             $actual[1].Path | Should -BeExactly $moduleManifestPath2
         }
+
+        # TODO: This looks like a bug.
+        It 'wrongly returns $null for existing manifest modules under $env:PSModulePath when using the -FullyQualifiedName parameter' {
+            $actual = Get-Module -ListAvailable -FullyQualifiedName (Join-Path $env:PSModulePath 'existing*')
+            $actual | Should -Be $null
+        }
     }
 }
 

From 11edc827f8428f8b184de74df7f0dfaf4fea70f5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Tue, 11 Aug 2026 07:44:01 +0200
Subject: [PATCH 28/56] Add test

---
 .../Microsoft.PowerShell.Core/Get-Module.Tests.ps1   | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index c7046e2c4e2..9256b428c5d 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -471,6 +471,18 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
             $actual = Get-Module -ListAvailable -FullyQualifiedName (Join-Path $env:PSModulePath 'existing*')
             $actual | Should -Be $null
         }
+
+        It 'returns existing manifest modules when using the -Name parameter' {
+            $moduleManifestPath1 = Join-Path $pwd existing 0.0.1,existing.psd1
+            $moduleManifestPath2 = Join-Path $pwd existing2 0.0.1,existing2.psd1
+            Test-Path $moduleManifestPath1 | Should -BeTrue
+            Test-Path $moduleManifestPath2 | Should -BeTrue
+
+            $actual = Get-Module -ListAvailable -Name (Join-Path $pwd 'existing*')
+            $actual | Should -HaveCount 2
+            $actual[0].Path | Should -BeExactly $moduleManifestPath1
+            $actual[1].Path | Should -BeExactly $moduleManifestPath2
+        }
     }
 }
 

From 8e822c668d833665cd17fd620ff36c72b331a051 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Tue, 11 Aug 2026 07:44:08 +0200
Subject: [PATCH 29/56] Add test

---
 .../Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1  | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 9256b428c5d..010ab76e0a5 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -483,6 +483,12 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
             $actual[0].Path | Should -BeExactly $moduleManifestPath1
             $actual[1].Path | Should -BeExactly $moduleManifestPath2
         }
+
+        # TODO: This looks like a bug.
+        It 'wrongly returns $null for existing manifest modules when using the -FullyQualifiedName parameter' {
+            $actual = Get-Module -ListAvailable -FullyQualifiedName (Join-Path $pwd 'existing*')
+            $actual | Should -Be $null
+        }
     }
 }
 

From f385bcddc0b988819085c7af01da539ece39bc2f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Tue, 11 Aug 2026 07:44:13 +0200
Subject: [PATCH 30/56] Add test

---
 .../Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1  | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 010ab76e0a5..fb3be7ed048 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -489,6 +489,12 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
             $actual = Get-Module -ListAvailable -FullyQualifiedName (Join-Path $pwd 'existing*')
             $actual | Should -Be $null
         }
+
+        It 'returns module information for existing script module under $env:PSModulePath' {
+            $actual = Get-Module -ListAvailable -Name (Join-Path $env:PSModulePath 'loose*')
+            $actual | Should -HaveCount 1
+            $actual[0].Path | Should -BeExactly (Join-Path $env:PSModulePath loose.psm1)
+        }
     }
 }
 

From 5154898d2372d771e6147591adfb7738e9d30404 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Tue, 11 Aug 2026 07:44:18 +0200
Subject: [PATCH 31/56] Add test

---
 .../Microsoft.PowerShell.Core/Get-Module.Tests.ps1  | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index fb3be7ed048..72e5dd45812 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -495,6 +495,19 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
             $actual | Should -HaveCount 1
             $actual[0].Path | Should -BeExactly (Join-Path $env:PSModulePath loose.psm1)
         }
+
+        It 'returns module information for existing script module using file name' {
+            $path = Join-Path $pwd loose.psm1
+            Test-Path $path | Should -BeTrue
+
+            $actual = Get-Module -ListAvailable -Name $path
+            $actual | Should -HaveCount 1
+            $actual[0].Path | Should -BeExactly $path
+
+            $actual = Get-Module -ListAvailable -FullyQualifiedName $path
+            $actual | Should -HaveCount 1
+            $actual[0].Path | Should -BeExactly $path
+        }
     }
 }
 

From 8afb65f9403dcb574ec2959f903d1b0c9dc49c58 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Tue, 11 Aug 2026 17:22:23 +0200
Subject: [PATCH 32/56] Add `Describe`

---
 .../Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1     | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 72e5dd45812..ad47a283c70 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -280,6 +280,9 @@ Describe "Get-Module -ListAvailable" -Tags "CI" {
     }
 }
 
+Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argument is relative-rooted' -Tags "CI" {
+}
+
 Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argument is absolute path' -Tags "CI" {
     BeforeAll {
         $oldPSModulePath = $env:PSModulePath

From 0d362fe0b60059049e427432b9dfe8c047676494 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Tue, 11 Aug 2026 17:22:34 +0200
Subject: [PATCH 33/56] Add test

---
 .../Microsoft.PowerShell.Core/Get-Module.Tests.ps1    | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index ad47a283c70..9bce7ba983e 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -281,6 +281,17 @@ Describe "Get-Module -ListAvailable" -Tags "CI" {
 }
 
 Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argument is relative-rooted' -Tags "CI" {
+    It 'wrongly returns module information instead of $null or error for missing script module' {
+        $path1 = Join-Path . missing.psm1
+        $path2 = Join-Path .. missing.psm1
+        Test-Path $path1 | Should -BeFalse
+        Test-Path $path2 | Should -BeFalse
+
+        Get-Module -ListAvailable -Name $path1 | Should -BeOfType ([System.Management.Automation.PSModuleInfo])
+        Get-Module -ListAvailable -Name $path2 | Should -BeOfType ([System.Management.Automation.PSModuleInfo])
+        Get-Module -ListAvailable -FullyQualifiedName $path1 | Should -BeOfType ([System.Management.Automation.PSModuleInfo])
+        Get-Module -ListAvailable -FullyQualifiedName $path2 | Should -BeOfType ([System.Management.Automation.PSModuleInfo])
+    }
 }
 
 Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argument is absolute path' -Tags "CI" {

From 5d8168cc78ac0ec79c138249c6dfa29bc5ce5372 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Tue, 11 Aug 2026 17:22:44 +0200
Subject: [PATCH 34/56] Add test

---
 .../Microsoft.PowerShell.Core/Get-Module.Tests.ps1   | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 9bce7ba983e..0edab2a6891 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -292,6 +292,18 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
         Get-Module -ListAvailable -FullyQualifiedName $path1 | Should -BeOfType ([System.Management.Automation.PSModuleInfo])
         Get-Module -ListAvailable -FullyQualifiedName $path2 | Should -BeOfType ([System.Management.Automation.PSModuleInfo])
     }
+
+    It 'writes error for missing manifest module' {
+        $path1 = Join-Path . missing
+        $path2 = Join-Path .. missing
+        Test-Path $path1 | Should -BeFalse
+        Test-Path $path2 | Should -BeFalse
+
+        { Get-Module -ListAvailable -Name $path1 -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
+        { Get-Module -ListAvailable -Name $path2 -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
+        { Get-Module -ListAvailable -FullyQualifiedName $path1 -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
+        { Get-Module -ListAvailable -FullyQualifiedName $path2 -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
+    }
 }
 
 Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argument is absolute path' -Tags "CI" {

From 52ec5a068d2f94d77cf8d24991a78bdd059f193c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Tue, 11 Aug 2026 17:23:10 +0200
Subject: [PATCH 35/56] Add `Context`

---
 .../Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1     | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 0edab2a6891..d3a8e5845b4 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -304,6 +304,9 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
         { Get-Module -ListAvailable -FullyQualifiedName $path1 -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
         { Get-Module -ListAvailable -FullyQualifiedName $path2 -ErrorAction Stop } | Should -Throw -Because '*Update the Name parameter*'
     }
+
+    Context 'Locating existing script module' {
+    }
 }
 
 Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argument is absolute path' -Tags "CI" {

From f28cb52e623a7f0c6d614b7ce982b97f35e47224 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Tue, 11 Aug 2026 17:23:22 +0200
Subject: [PATCH 36/56] Add `BeforeAll` and `AfterAll`

---
 .../Get-Module.Tests.ps1                         | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index d3a8e5845b4..08389490311 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -306,6 +306,22 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
     }
 
     Context 'Locating existing script module' {
+        BeforeAll {
+            # Script modules
+            #
+            # Under $env:PSModulePath. TODO: Is this a supported scenario?
+            $inPSModulePathLooseFilePath = Join-Path . loose.psm1
+            New-Item -ItemType File -Force $inPSModulePathLooseFilePath > $null
+            #
+            # Under $pwd
+            $inPSModulePathLooseFilePathParent = Join-Path .. loose.psm1
+            New-Item -ItemType File -Force $inPSModulePathLooseFilePathParent > $null
+        }
+
+        AfterAll {
+            Remove-Item $inPSModulePathLooseFilePath
+            Remove-Item $inPSModulePathLooseFilePathParent
+        }
     }
 }
 

From ff1c480019292b5af500ca180a798923474bc7aa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Tue, 11 Aug 2026 17:23:29 +0200
Subject: [PATCH 37/56] Add test

---
 .../Get-Module.Tests.ps1                        | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 08389490311..90e528363e8 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -322,6 +322,23 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
             Remove-Item $inPSModulePathLooseFilePath
             Remove-Item $inPSModulePathLooseFilePathParent
         }
+
+        # TODO: This looks like a bug.
+        It 'wrongly writes error instead of returning module information for existing script module using basename' {
+            $path1 = Join-Path . loose.psm1
+            $path2 = Join-Path .. loose.psm1
+            Test-Path $path1 | Should -BeTrue
+            Test-Path $path2 | Should -BeTrue
+
+            $name1 = Join-Path . loose
+            $name2 = Join-Path .. loose
+
+            $err = { Get-Module -ListAvailable -Name $name1 -ErrorAction Stop } | Should -Throw -PassThru
+            $err.Exception.Message | Should -BeLike '*Update the Name parameter*'
+
+            $err = { Get-Module -ListAvailable -Name $name2 -ErrorAction Stop } | Should -Throw -PassThru
+            $err.Exception.Message | Should -BeLike '*Update the Name parameter*'
+        }
     }
 }
 

From 9620dac3deb55089e8b67dde924717962e9fd322 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Tue, 11 Aug 2026 17:23:37 +0200
Subject: [PATCH 38/56] Add test

---
 .../Get-Module.Tests.ps1                      | 23 +++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 90e528363e8..fba9c99d0d6 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -339,6 +339,29 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
             $err = { Get-Module -ListAvailable -Name $name2 -ErrorAction Stop } | Should -Throw -PassThru
             $err.Exception.Message | Should -BeLike '*Update the Name parameter*'
         }
+
+        It 'returns module information for existing script module using file name' {
+            $name1 = Join-Path . loose.psm1
+            $name2 = Join-Path .. loose.psm1
+            Test-Path $name1 | Should -BeTrue
+            Test-Path $name2 | Should -BeTrue
+
+            $actual = Get-Module -ListAvailable -Name $name1
+            $actual | Should -HaveCount 1
+            $actual[0].Path | Should -BeExactly ([System.IO.Path]::GetFullPath($name1))
+
+            $actual = Get-Module -ListAvailable -Name $name2
+            $actual | Should -HaveCount 1
+            $actual[0].Path | Should -BeExactly ([System.IO.Path]::GetFullPath($name2))
+
+            $actual = Get-Module -ListAvailable -FullyQualifiedName $name1
+            $actual | Should -HaveCount 1
+            $actual[0].Path | Should -BeExactly ([System.IO.Path]::GetFullPath($name1))
+
+            $actual = Get-Module -ListAvailable -FullyQualifiedName $name2
+            $actual | Should -HaveCount 1
+            $actual[0].Path | Should -BeExactly ([System.IO.Path]::GetFullPath($name2))
+        }
     }
 }
 

From 3a3837bdbce49e12838c05a4996965041794deec Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Sun, 9 Aug 2026 20:27:47 +0200
Subject: [PATCH 39/56] Add `Context`

---
 .../Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1     | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index fba9c99d0d6..1e864900a9e 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -363,6 +363,9 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
             $actual[0].Path | Should -BeExactly ([System.IO.Path]::GetFullPath($name2))
         }
     }
+
+    Context 'When argument contains wildcards' {
+    }
 }
 
 Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argument is absolute path' -Tags "CI" {

From f06e705166d5b5fb9471e532adb79e31bc9698de Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Tue, 11 Aug 2026 17:29:33 +0200
Subject: [PATCH 40/56] Add `BeforeAll` and `AfterAll`

---
 .../Get-Module.Tests.ps1                      | 53 +++++++++++++++++++
 1 file changed, 53 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 1e864900a9e..e82143c2554 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -365,6 +365,59 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
     }
 
     Context 'When argument contains wildcards' {
+        BeforeAll {
+            # Manifest modules under '.'
+            #
+            # Versioned, manifest
+            $inCwdWithManifestFileName = 'existing'
+            $inCwdWithManifestDirectory = Join-Path '.' $inCwdWithManifestFileName '0.0.1'
+            $inCwdWithManifestFilePath = Join-Path $inCwdWithManifestDirectory "$inCwdWithManifestFileName.psm1"
+            New-Item -ItemType File -Force $inCwdWithManifestFilePath > $null
+            New-ModuleManifest -Path (Join-Path $inCwdWithManifestDirectory "$inCwdWithManifestFileName.psd1")
+            #
+            # Versioned, manifest
+            $inCwdWithManifestFileName2 = 'existing2'
+            $inCwdWithManifestDirectory2 = Join-Path '.' $inCwdWithManifestFileName2 '0.0.1'
+            $inCwdWithManifestFilePath2 = Join-Path $inCwdWithManifestDirectory2 "$inCwdWithManifestFileName2.psm1"
+            New-Item -ItemType File -Force $inCwdWithManifestFilePath2 > $null
+            New-ModuleManifest -Path (Join-Path $inCwdWithManifestDirectory2 "$inCwdWithManifestFileName2.psd1")
+
+            # Manifest modules under '..'
+            #
+            # Versioned, manifest
+            $inParentWithManifestFileName = 'existing'
+            $inParentWithManifestDirectory = Join-Path '..' $inParentWithManifestFileName '0.0.1'
+            $inParentWithManifestFilePath = Join-Path $inParentWithManifestDirectory "$inParentWithManifestFileName.psm1"
+            New-Item -ItemType File -Force $inParentWithManifestFilePath > $null
+            New-ModuleManifest -Path (Join-Path $inParentWithManifestDirectory "$inParentWithManifestFileName.psd1")
+            #
+            # Versioned, manifest
+            $inParentWithManifestFileName2 = 'existing2'
+            $inParentWithManifestDirectory2 = Join-Path '..' $inParentWithManifestFileName2 '0.0.1'
+            $inParentWithManifestFilePath2 = Join-Path $inParentWithManifestDirectory2 "$inParentWithManifestFileName2.psm1"
+            New-Item -ItemType File -Force $inParentWithManifestFilePath2 > $null
+            New-ModuleManifest -Path (Join-Path $inParentWithManifestDirectory2 "$inParentWithManifestFileName2.psd1")
+
+            # Script modules under '.' and '..'
+            #
+            # Under '.'
+            $inCwdLooseFilePath = Join-Path '.' 'loose.psm1'
+            New-Item -ItemType File -Force $inCwdLooseFilePath > $null
+            #
+            # Under '..'
+            $inParentLooseFilePath = Join-Path '..' 'loose.psm1'
+            New-Item -ItemType File -Force $inParentLooseFilePath > $null
+        }
+
+        AfterAll {
+            Remove-Item -Force -Recurse $inCwdWithManifestDirectory
+            Remove-Item -Force -Recurse $inCwdWithManifestDirectory2
+
+            Remove-Item -Force -Recurse $inParentWithManifestDirectory
+            Remove-Item -Force -Recurse $inParentWithManifestDirectory2
+
+            Remove-Item $inCwdLooseFilePath
+        }
     }
 }
 

From 6d932612adaa8b723aed6121e7917986767339ee Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Tue, 11 Aug 2026 17:29:39 +0200
Subject: [PATCH 41/56] Add test

---
 .../Microsoft.PowerShell.Core/Get-Module.Tests.ps1   | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index e82143c2554..b51a94abb5a 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -418,6 +418,18 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
 
             Remove-Item $inCwdLooseFilePath
         }
+
+        It 'returns existing manifest modules when using the -Name parameter' {
+            $actual = Get-Module -ListAvailable -Name '.\existing*'
+            $actual | Should -HaveCount 2
+            $actual[0].Path | Should -BeExactly ([System.IO.Path]::GetFullPath('.\existing\0.0.1\existing.psd1'))
+            $actual[1].Path | Should -BeExactly ([System.IO.Path]::GetFullPath('.\existing2\0.0.1\existing2.psd1'))
+
+            $actual = Get-Module -ListAvailable -Name '..\existing*'
+            $actual | Should -HaveCount 2
+            $actual[0].Path | Should -BeExactly ([System.IO.Path]::GetFullPath('..\existing\0.0.1\existing.psd1'))
+            $actual[1].Path | Should -BeExactly ([System.IO.Path]::GetFullPath('..\existing2\0.0.1\existing2.psd1'))
+        }
     }
 }
 

From c8356e6a467fb35e493590f36689beae24e7df73 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Tue, 11 Aug 2026 17:29:45 +0200
Subject: [PATCH 42/56] Add test

---
 .../Microsoft.PowerShell.Core/Get-Module.Tests.ps1       | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index b51a94abb5a..7b99bc4af47 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -430,6 +430,15 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
             $actual[0].Path | Should -BeExactly ([System.IO.Path]::GetFullPath('..\existing\0.0.1\existing.psd1'))
             $actual[1].Path | Should -BeExactly ([System.IO.Path]::GetFullPath('..\existing2\0.0.1\existing2.psd1'))
         }
+
+        # TODO: This looks like a bug.
+        It 'wrongly returns $null for existing manifest modules when using the -FullyQualifiedName parameter' {
+            $actual = Get-Module -ListAvailable -FullyQualifiedName '.\existing*'
+            $actual | Should -Be $null
+
+            $actual = Get-Module -ListAvailable -FullyQualifiedName '..\existing*'
+            $actual | Should -Be $null
+        }
     }
 }
 

From aa7e56d3325df3932bca79e2912f89c699ea6b17 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Tue, 11 Aug 2026 17:29:52 +0200
Subject: [PATCH 43/56] Add test

---
 .../Microsoft.PowerShell.Core/Get-Module.Tests.ps1     | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 7b99bc4af47..9fc62c435dc 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -439,6 +439,16 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
             $actual = Get-Module -ListAvailable -FullyQualifiedName '..\existing*'
             $actual | Should -Be $null
         }
+
+        It 'returns module information for existing script module' {
+            $actual = Get-Module -ListAvailable -Name '.\loose*'
+            $actual | Should -HaveCount 1
+            $actual[0].Path | Should -BeExactly ([System.IO.Path]::GetFullPath('.\loose.psm1'))
+
+            $actual = Get-Module -ListAvailable -FullyQualifiedName '..\loose*'
+            $actual | Should -HaveCount 1
+            $actual[0].Path | Should -BeExactly ([System.IO.Path]::GetFullPath('..\loose.psm1'))
+        }
     }
 }
 

From d0f5508ad7efacb1147b020a8117c7de0e340dee Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Sun, 9 Aug 2026 21:32:55 +0200
Subject: [PATCH 44/56] Add `Describe`

---
 .../Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1     | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 9fc62c435dc..d394f493c44 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -280,6 +280,9 @@ Describe "Get-Module -ListAvailable" -Tags "CI" {
     }
 }
 
+Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argument is home-rooted' -Tags "CI" {
+}
+
 Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argument is relative-rooted' -Tags "CI" {
     It 'wrongly returns module information instead of $null or error for missing script module' {
         $path1 = Join-Path . missing.psm1

From 19c392ac89d3536ab4354328cb1258e4b3f77223 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Sun, 9 Aug 2026 21:33:10 +0200
Subject: [PATCH 45/56] Add test

---
 .../Microsoft.PowerShell.Core/Get-Module.Tests.ps1        | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index d394f493c44..119a6a3cb7c 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -281,6 +281,14 @@ Describe "Get-Module -ListAvailable" -Tags "CI" {
 }
 
 Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argument is home-rooted' -Tags "CI" {
+    It 'wrongly does not expand ''~'' to $HOME' {
+        $path = Join-Path ~ missing.psm1
+        Test-Path $path | Should -BeFalse
+
+        Get-Module -ListAvailable -Name $path | ForEach-Object Path | Should -BeExactly (Join-Path $HOME missing.psm1)
+        # TODO: This is a bug.
+        Get-Module -ListAvailable -FullyQualifiedName $path | ForEach-Object Path | Should -BeExactly (Join-Path $pwd $path)
+    }
 }
 
 Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argument is relative-rooted' -Tags "CI" {

From b75d60e517472d2cf306cbe6bbf88d7cfd9f6ed2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Sun, 9 Aug 2026 21:33:20 +0200
Subject: [PATCH 46/56] Add test

---
 .../Microsoft.PowerShell.Core/Get-Module.Tests.ps1        | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 119a6a3cb7c..0f3102a6b31 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -289,6 +289,14 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
         # TODO: This is a bug.
         Get-Module -ListAvailable -FullyQualifiedName $path | ForEach-Object Path | Should -BeExactly (Join-Path $pwd $path)
     }
+
+    It 'wrongly returns module information instead of $null or error for missing script module' {
+        $path = Join-Path ~ missing.psm1
+        Test-Path $path | Should -BeFalse
+
+        Get-Module -ListAvailable -Name $path | Should -BeOfType ([System.Management.Automation.PSModuleInfo])
+        Get-Module -ListAvailable -FullyQualifiedName $path | Should -BeOfType ([System.Management.Automation.PSModuleInfo])
+    }
 }
 
 Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argument is relative-rooted' -Tags "CI" {

From 1c653629c17a93300c0c209d0f5779fc6a3f5d3d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Sun, 9 Aug 2026 21:33:31 +0200
Subject: [PATCH 47/56] Add test

---
 .../Microsoft.PowerShell.Core/Get-Module.Tests.ps1  | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 0f3102a6b31..b35d5a4dbeb 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -297,6 +297,19 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
         Get-Module -ListAvailable -Name $path | Should -BeOfType ([System.Management.Automation.PSModuleInfo])
         Get-Module -ListAvailable -FullyQualifiedName $path | Should -BeOfType ([System.Management.Automation.PSModuleInfo])
     }
+
+    It 'writes error for missing manifest module' {
+        $path = Join-Path ~ missing.psm1
+        Test-Path $path | Should -BeFalse
+
+        $name = Join-Path ~ missing
+
+        $err = { Get-Module -ListAvailable -Name $name -ErrorAction Stop } | Should -Throw -PassThru
+        $err.Exception.Message | Should -BeLike '*Update the Name parameter*'
+
+        $err = { Get-Module -ListAvailable -FullyQualifiedName $name -ErrorAction Stop } | Should -Throw -PassThru
+        $err.Exception.Message | Should -BeLike '*Update the Name parameter*'
+    }
 }
 
 Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argument is relative-rooted' -Tags "CI" {

From f4ea1ea38fd8cac1c43f4d5213c3e75dbda67577 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Sun, 9 Aug 2026 21:33:47 +0200
Subject: [PATCH 48/56] Add `Context`

---
 .../Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1     | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index b35d5a4dbeb..74bbf9b9f7a 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -310,6 +310,9 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
         $err = { Get-Module -ListAvailable -FullyQualifiedName $name -ErrorAction Stop } | Should -Throw -PassThru
         $err.Exception.Message | Should -BeLike '*Update the Name parameter*'
     }
+
+    Context 'Locating existing script module' {
+    }
 }
 
 Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argument is relative-rooted' -Tags "CI" {

From 2fcbc0ce017ac33cee1369ebf270ef035af4e7fb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Sun, 9 Aug 2026 21:34:08 +0200
Subject: [PATCH 49/56] Add `BeforeAll` and `AfterAll`

---
 .../Microsoft.PowerShell.Core/Get-Module.Tests.ps1     | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 74bbf9b9f7a..09b71cfe329 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -312,6 +312,16 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
     }
 
     Context 'Locating existing script module' {
+        BeforeAll {
+            # Script modules
+            #
+            $inHomeLooseFilePath = Join-Path $HOME loose.psm1
+            New-Item -ItemType File -Force $inHomeLooseFilePath > $null
+        }
+
+        AfterAll {
+            Remove-Item $inHomeLooseFilePath
+        }
     }
 }
 

From eb36cb1249c9c854b02de2cd5bf174dce3835084 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Sun, 9 Aug 2026 21:34:15 +0200
Subject: [PATCH 50/56] Add test

---
 .../Microsoft.PowerShell.Core/Get-Module.Tests.ps1 | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 09b71cfe329..1dff9ff729c 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -322,6 +322,20 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
         AfterAll {
             Remove-Item $inHomeLooseFilePath
         }
+
+        # TODO: This looks like a bug.
+        It 'wrongly writes error instead of returning module information for existing script module using basename' {
+            $path = Join-Path ~ loose.psm1
+            Test-Path $path | Should -BeTrue
+
+            $name = Join-Path ~ loose
+
+            $err = { Get-Module -ListAvailable -Name $name -ErrorAction Stop } | Should -Throw -PassThru
+            $err.Exception.Message | Should -BeLike '*Update the Name parameter*'
+
+            $err = { Get-Module -ListAvailable -FullyQualifiedName $name -ErrorAction Stop } | Should -Throw -PassThru
+            $err.Exception.Message | Should -BeLike '*Update the Name parameter*'
+        }
     }
 }
 

From cfe48552ec798020eabd30e9301fc0c948ba66dc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Sun, 9 Aug 2026 21:34:24 +0200
Subject: [PATCH 51/56] Add test

---
 .../Microsoft.PowerShell.Core/Get-Module.Tests.ps1 | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 1dff9ff729c..d1d9d430bf5 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -336,6 +336,20 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
             $err = { Get-Module -ListAvailable -FullyQualifiedName $name -ErrorAction Stop } | Should -Throw -PassThru
             $err.Exception.Message | Should -BeLike '*Update the Name parameter*'
         }
+
+        It 'returns module information for existing script module using file name' {
+            $path = Join-Path ~ loose.psm1
+            Test-Path $path | Should -BeTrue
+
+            $actual = Get-Module -ListAvailable -Name $path
+            $actual | Should -HaveCount 1
+            $actual[0].Path | Should -BeExactly (Join-Path $HOME loose.psm1)
+
+            # TODO: This is a bug.
+            $actual = Get-Module -ListAvailable -FullyQualifiedName $path
+            $actual | Should -HaveCount 1
+            $actual[0].Path | Should -BeExactly (Join-Path $pwd $path)
+        }
     }
 }
 

From 0deccbeb7c3c1b5fef93b73db1a4f06c0c972045 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Sun, 9 Aug 2026 21:34:36 +0200
Subject: [PATCH 52/56] Add `Context`

---
 .../Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1     | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index d1d9d430bf5..8aba55bed72 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -351,6 +351,9 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
             $actual[0].Path | Should -BeExactly (Join-Path $pwd $path)
         }
     }
+
+    Context 'When argument contains wildcards' {
+    }
 }
 
 Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argument is relative-rooted' -Tags "CI" {

From 2fec8f5de48260206c21e3dd0d6bf4b38925ede9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Sun, 9 Aug 2026 21:34:51 +0200
Subject: [PATCH 53/56] Add `BeforeAll` and `AfterAll`

---
 .../Get-Module.Tests.ps1                      | 29 +++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 8aba55bed72..93f88ac15c2 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -353,6 +353,35 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
     }
 
     Context 'When argument contains wildcards' {
+        BeforeAll {
+            # Manifest modules under '~'
+            #
+            # Versioned, manifest
+            $inHomeWithManifestFileName = 'existing'
+            $inHomeWithManifestDirectory = Join-Path '~' $inHomeWithManifestFileName '0.0.1'
+            $inHomeWithManifestFilePath = Join-Path $inHomeWithManifestDirectory "$inHomeWithManifestFileName.psm1"
+            New-Item -ItemType File -Force $inHomeWithManifestFilePath > $null
+            New-ModuleManifest -Path (Join-Path $inHomeWithManifestDirectory "$inHomeWithManifestFileName.psd1")
+            #
+            # Versioned, manifest
+            $inHomeWithManifestFileName2 = 'existing2'
+            $inHomeWithManifestDirectory2 = Join-Path '~' $inHomeWithManifestFileName2 '0.0.1'
+            $inHomeWithManifestFilePath2 = Join-Path $inHomeWithManifestDirectory2 "$inHomeWithManifestFileName2.psm1"
+            New-Item -ItemType File -Force $inHomeWithManifestFilePath2 > $null
+            New-ModuleManifest -Path (Join-Path $inHomeWithManifestDirectory2 "$inHomeWithManifestFileName2.psd1")
+
+            # Script modules under '~'
+            #
+            $inHomeLooseFilePath = Join-Path '~' 'loose.psm1'
+            New-Item -ItemType File -Force $inHomeLooseFilePath > $null
+        }
+
+        AfterAll {
+            Remove-Item -Force -Recurse $inHomeWithManifestDirectory
+            Remove-Item -Force -Recurse $inHomeWithManifestDirectory2
+
+            Remove-Item $inHomeLooseFilePath
+        }
     }
 }
 

From 2c5886498deb975b598b08f626b9c65418438bca Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Sun, 9 Aug 2026 21:34:58 +0200
Subject: [PATCH 54/56] Add test

---
 .../Microsoft.PowerShell.Core/Get-Module.Tests.ps1       | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 93f88ac15c2..162cd8d96a3 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -382,6 +382,15 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
 
             Remove-Item $inHomeLooseFilePath
         }
+
+        It 'returns existing manifest modules when using the -Name parameter' {
+            $name = Join-Path ~ existing*
+
+            $actual = Get-Module -ListAvailable -Name $name
+            $actual | Should -HaveCount 2
+            $actual[0].Path | Should -BeExactly (Join-Path $HOME existing 0.0.1, existing.psd1)
+            $actual[1].Path | Should -BeExactly (Join-Path $HOME existing2 0.0.1, existing2.psd1)
+        }
     }
 }
 

From e4e16964098bd25fbc1f13c0d8bcf8ff1db14918 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Sun, 9 Aug 2026 21:35:06 +0200
Subject: [PATCH 55/56] Add test

---
 .../Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1  | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index 162cd8d96a3..a3cc17e2ea0 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -391,6 +391,12 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
             $actual[0].Path | Should -BeExactly (Join-Path $HOME existing 0.0.1, existing.psd1)
             $actual[1].Path | Should -BeExactly (Join-Path $HOME existing2 0.0.1, existing2.psd1)
         }
+
+        # TODO: This looks like a bug.
+        It 'wrongly returns $null for existing manifest modules when using the -FullyQualifiedName parameter' {
+            $actual = Get-Module -ListAvailable -FullyQualifiedName (Join-Path ~ existing*)
+            $actual | Should -Be $null
+        }
     }
 }
 

From 0bb5dda192135d96cae4e88d46734a05ca031731 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Guillermo=20L=C3=B3pez?= <guillermo.lopez@outlook.com>
Date: Sun, 9 Aug 2026 21:35:10 +0200
Subject: [PATCH 56/56] Add test

---
 .../Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1  | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1 b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
index a3cc17e2ea0..d979099dc47 100644
--- a/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
+++ b/test/powershell/Modules/Microsoft.PowerShell.Core/Get-Module.Tests.ps1
@@ -397,6 +397,12 @@ Describe 'Get-Module -ListAvailable -(FullyQualifiedName|Name) <path> when argum
             $actual = Get-Module -ListAvailable -FullyQualifiedName (Join-Path ~ existing*)
             $actual | Should -Be $null
         }
+
+        It 'returns module information for existing script module' {
+            $actual = Get-Module -ListAvailable -Name (Join-Path ~ loose*)
+            $actual | Should -HaveCount 1
+            $actual[0].Path | Should -BeExactly (Join-Path $HOME loose.psm1)
+        }
     }
 }