diff --git a/build/ci/templates/test_phases.yml b/build/ci/templates/test_phases.yml
index 04f1aca37743..c822fe73c1e6 100644
--- a/build/ci/templates/test_phases.yml
+++ b/build/ci/templates/test_phases.yml
@@ -112,6 +112,17 @@ steps:
     displayName: 'code hygiene'
     condition: and(succeeded(), contains(variables['TestsToRun'], 'runHygiene'))
 
+  # Run the typescript unit tests.
+  #
+  # This will only run if the string 'testUnitTests' exists in variable `TestsToRun`
+  #
+  # Example command line (windows pwsh):
+  # > npm run test:unittests
+  - bash: |
+      npm run test:unittests
+    displayName: 'run test:unittest'
+    condition: and(succeeded(), contains(variables['TestsToRun'], 'testUnitTests'))
+
   # Upload the test results to Azure DevOps to facilitate test reporting in their UX.
   - task: PublishTestResults@2
     displayName: 'Publish test:unittest results'
diff --git a/src/test/application/diagnostics/checks/invalidLaunchJsonDebugger.unit.test.ts b/src/test/application/diagnostics/checks/invalidLaunchJsonDebugger.unit.test.ts
index ce6cf3d52899..eeba414f9846 100644
--- a/src/test/application/diagnostics/checks/invalidLaunchJsonDebugger.unit.test.ts
+++ b/src/test/application/diagnostics/checks/invalidLaunchJsonDebugger.unit.test.ts
@@ -369,7 +369,7 @@ suite('Application Diagnostics - Checks if launch.json is invalid', () => {
         fs.setup(w => w.writeFile(TypeMoq.It.isAnyString(), correctedlaunchJson))
             .returns(() => Promise.resolve())
             .verifiable(TypeMoq.Times.once());
-        await (diagnosticService as any).fixLaunchJson(DiagnosticCodes.InvalidDebuggerTypeDiagnostic);
+        await (diagnosticService as any).fixLaunchJson(DiagnosticCodes.ConsoleTypeDiagnostic);
         workspaceService.verifyAll();
         fs.verifyAll();
     });