Merge latest Library.Template

[Andrew Arnott (AArnott)]

No description provided.

[Codecov Comments Bot (codecov-commenter)]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 77.88%. Comparing base (b2eef98) to head (83368d8).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #413   +/-   ##
=======================================
  Coverage   77.88%   77.88%           
=======================================
  Files          14       14           
  Lines         859      859           
  Branches      224      224           
=======================================
  Hits          669      669           
  Misses        126      126           
  Partials       64       64           

Flag	Coverage Δ
Linux	79.18% <ø> (ø)
Windows	77.88% <ø> (ø)

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[Copilot]

Copilot review overview

🟡 Changes recommended

The new operational documentation contains incorrect repository subjects, feed names, and an unsupported command-line switch.

Review effort: Balanced
Findings: 4

Open (4)

• Remove unsupported IncludeNativeAOT parameter · New
• Document this repository's immutable owner and repository IDs · New
• Grant access to the feed declared in nuget.config · New
• Correct the repository organization description · New

What changed in this PR

Synchronizes the repository with Library.Template, modernizing test execution, NativeAOT validation, dependency restoration, and CI workflows.

Changes:

• Migrates tests from xUnit runner to TUnit/MTP while retaining xUnit assertions.
• Adds traversal projects and NativeAOT compatibility validation.
• Updates runners, documentation publishing, OIDC feed authentication, and dependencies.

File	Description
version.json	Updates the version schema URL.
tools/​tests/​DocsFeedCredentials.Tests.ps1	Adds feed credential tests.
tools/​tests/​Configure-GitHubOidc.Tests.ps1	Adds OIDC configuration tests.
tools/​Install-DotNetSdk.ps1	Skips already-installed SDKs and runtimes.
tools/​dotnet-test-cloud.ps1	Removes the obsolete xUnit trait filter.
tools/​dirs.proj	Adds the root traversal project.
tools/​Configure-GitHubOidc.ps1	Adds immutable OIDC trust configuration.
test/​Microsoft.VisualStudio.Validation.Tests/​xunit.runner.json	Removes obsolete xUnit configuration.
test/​Microsoft.VisualStudio.Validation.Tests/​VerifyTests.cs	Migrates tests to TUnit attributes.
test/​Microsoft.VisualStudio.Validation.Tests/​RequiresTests.cs	Migrates tests and output handling.
test/​Microsoft.VisualStudio.Validation.Tests/​ReportTests.Release.cs	Migrates release tests to TUnit.
test/​Microsoft.VisualStudio.Validation.Tests/​ReportTests.Debug.cs	Migrates debug tests and listener cleanup.
test/​Microsoft.VisualStudio.Validation.Tests/​Microsoft.VisualStudio.Validation.Tests.csproj	Replaces the xUnit runner with TUnit.
test/​Microsoft.VisualStudio.Validation.Tests/​ExceptionExtensionsTests.cs	Migrates tests to TUnit.
test/​Microsoft.VisualStudio.Validation.Tests/​EventHandlerExtensionsTests.cs	Migrates tests to TUnit.
test/​Microsoft.VisualStudio.Validation.Tests/​AssumesTests.cs	Migrates tests to TUnit.
test/​Microsoft.VisualStudio.Validation.Tests/​AssertDialogSuppression.cs	Generalizes trace-listener cleanup.
test/​Microsoft.VisualStudio.Validation.Tests/​AssemblyInfo.cs	Disables TUnit parallel execution.
test/​Microsoft.VisualStudio.Validation.Analyzers.Tests/​UseRequiresGuardsTests.cs	Migrates analyzer tests to TUnit.
test/​Microsoft.VisualStudio.Validation.Analyzers.Tests/​Microsoft.VisualStudio.Validation.Analyzers.Tests.csproj	Configures TUnit and managed-only testing.
test/​Microsoft.VisualStudio.Validation.Analyzers.Tests/​Helpers/​CSharpCodeFixVerifier\2+Test.cs`	Resolves the validation assembly from output.
test/​dirs.proj	Adds test traversal and AOT publishing.
test/​Directory.Build.targets	Configures test extensions and AOT imports.
test/​Directory.Build.props	Adds shared MTP and AOT properties.
test/​AotCompatibilityTest/​Program.cs	Adds the AOT validation entry point.
test/​AotCompatibilityTest/​AotCompatibilityTest.csproj	Adds the NativeAOT compatibility project.
test/​AOT.props	Defines shared NativeAOT publish settings.
src/​Microsoft.VisualStudio.Validation/​Microsoft.VisualStudio.Validation.csproj	Declares .NET 8 AOT compatibility.
src/​dirs.proj	Adds shipping-project traversal.
Microsoft.VisualStudio.Validation.slnx	Includes the AOT compatibility project.
init.ps1	Restores through the traversal project.
global.json	Adds the traversal SDK.
Directory.Packages.props	Updates MTP and TUnit dependencies.
Directory.Build.props	Adds RID and traversal-reference defaults.
CONTRIBUTING.md	Documents AOT and OIDC workflows.
azure-pipelines/​vs-validation.yml	Updates the insertion pool.
azure-pipelines/​vs-insertion.yml	Updates the insertion pool.
azure-pipelines/​dotnet.yml	Builds and publishes via traversal.
azure-pipelines/​build.yml	Moves Linux builds to Ubuntu 26.04.
AGENTS.md	Documents TUnit testing commands.
.github/​workflows/​libtemplate-update.yml	Updates the hosted runner.
.github/​workflows/​docs.yml	Adds dispatch and unique Pages artifacts.
.github/​workflows/​docs_validate.yml	Adds OIDC feed authentication.
.github/​workflows/​copilot-setup-steps.yml	Updates the hosted runner.
.github/​renovate.json	Adds dependency grouping rules.
.config/​dotnet-tools.json	Updates DocFX.
.agents/​skills/​update-library-template/​template-release-notes.md	Documents template migration guidance.
.agents/​skills/​update-library-template/​SKILL.md	Expands template merge safeguards.

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[Copilot]

Copilot review overview

🔵 Needs a closer look

The combined test-runner, NativeAOT, CI, and cloud-authentication changes warrant final human validation.

Review effort: Balanced
Findings: None

Resolved since last review (4)

• Correct the repository organization description
• Grant access to the feed declared in nuget.config
• Document this repository's immutable owner and repository IDs
• Remove unsupported IncludeNativeAOT parameter

Previously missed (1)

In code that hasn't changed since last review

Correct comment to describe non-test project condition

test/​Directory.Build.targets:6

This comment describes test projects, but the condition below applies only when IsTestProject is not true; both actual test projects explicitly keep UseAppHost=true. Update the wording to describe non-test projects so future changes do not invert the condition based on stale guidance.

[Copilot]

Copilot review overview

🔵 Needs a closer look

Windows CI currently skips NativeAOT dump configuration because it evaluates a PowerShell Core-only variable.

Review effort: Balanced
Findings: None

Previously missed (1)

In code that hasn't changed since last review

Windows PowerShell skips NativeAOT hang/crash dump switches

tools/​dotnet-test-cloud.ps1:124

Windows CI invokes this script through the powershell: task (azure-pipelines/dotnet.yml:25), which runs Windows PowerShell 5.1. $IsWindows is only defined in PowerShell Core, so this condition is false there and NativeAOT runs silently lose the requested hang/crash dump switches. Use the same $env:OS check already used elsewhere in the repository.