gh-report-validation

A small validation harness for the Microsoft.Testing.Extensions.GitHubActionsReport Microsoft.Testing.Platform extension (microsoft/testfx#9142).

Its sole purpose is to prove that every workflow command the extension emits is implemented correctly and is actually picked up by the GitHub Actions UI:

Extension feature	Workflow command	Where it shows up in the UI
Per-assembly log groups	::group:: / ::endgroup::	Collapsible sections in the job log
Failure annotations	::error file=,line=,col=,title=	Annotations tab + the file's diff gutter
Slow-test notices	::notice	Annotations tab
Job summary	markdown → $GITHUB_STEP_SUMMARY	The run's Summary page

Layout

• CalculatorTests/ — a Calculator and passing TUnit tests, plus one deliberately slow test to trigger slow-test notices.
• StringUtilsTests/ — a StringUtils and tests, including one deliberately failing test to trigger a failure annotation and a non-empty "Failures" section in the job summary.
• local-packages/ — the locally-built extension packaged as NuGet packages (Microsoft.Testing.Extensions.GitHubActionsReport + the Microsoft.Testing.Platform packages it was compiled against). nuget.config points at this folder so the extension is wired into the solution at restore/build time without needing the testfx repo.
• .github/workflows/verify.yml — builds the solution and runs each test project with dotnet run --project, so a maintainer can eyeball the Actions run and confirm the outputs render.

Run locally

dotnet build gh-report-validation.slnx -c Release
# emits ::group::/::error/job-summary (GITHUB_* vars are set automatically only on a runner)
dotnet run --project StringUtilsTests/StringUtilsTests.csproj -c Release --no-build

On a GitHub Actions runner the GITHUB_ACTIONS, GITHUB_WORKSPACE, and GITHUB_STEP_SUMMARY environment variables are set automatically, which is what activates the extension and routes the job summary to the run page.