diff --git a/.github/workflows/generate-coverage-report.yaml b/.github/workflows/generate-coverage-report.yaml
new file mode 100644
index 0000000000..59398782d5
--- /dev/null
+++ b/.github/workflows/generate-coverage-report.yaml
@@ -0,0 +1,164 @@
+name: generate-coverage-report
+run-name: Generate coverage coverage report ${{ github.event.head_commit.message }}
+
+on:
+ workflow_dispatch:
+ inputs:
+ skip_integration_tests:
+ type: boolean
+ description: Set `true` to skip integration tests.
+ default: true
+
+concurrency:
+ group: ${{ github.workflow }}-${{ github.event.inputs.skip_integration_tests }}-${{ github.head_ref || github.ref || github.run_id }}
+ cancel-in-progress: true
+
+jobs:
+ collect-coverage:
+ runs-on: ${{ matrix.os }}
+ defaults:
+ run:
+ shell: pwsh
+ strategy:
+ matrix:
+ # Note: ARM64 on linux/macos are not supported.
+ # https://github.com/microsoft/codecoverage/blob/main/docs/supported-os.md
+ os: [windows-latest, ubuntu-latest, macos-15-intel, windows-11-arm]
+ steps:
+ - uses: actions/checkout@v6
+
+ # Ensure DOTNET_ROOT environment variable set on macos-15-intel
+ - uses: actions/setup-dotnet@v5
+ with:
+ dotnet-version: |
+ 8.x
+
+ - name: Install dotnet-coverage
+ run: dotnet tool install --global dotnet-coverage
+
+ - name: Run task 'build'
+ run: dotnet build BenchmarkDotNet.slnx -c Release
+
+ - name: Start dotnet-coverage with background server mode
+ run: dotnet coverage collect --session-id bdn_coverage --settings tests/CodeCoverage.config --server-mode --background
+
+ - name: Collect Code Coverage
+ run: |
+ dotnet coverage connect bdn_coverage "dotnet test tests/BenchmarkDotNet.Tests -c Release --no-build --framework net8.0"
+ dotnet coverage connect bdn_coverage "dotnet test tests/BenchmarkDotNet.Analyzers.Tests -c Release --no-build --framework net8.0"
+
+ - name: Collect Code Coverage for BenchmarkDotNet.IntegrationTests
+ if: ${{ github.event.inputs.skip_integration_tests == 'false'}}
+ run: |
+ dotnet coverage connect bdn_coverage 'dotnet test tests/BenchmarkDotNet.IntegrationTests -c Release --no-build --framework net8.0 --filter "(FullyQualifiedName!~DotMemoryTests) & (FullyQualifiedName!~DotTraceTests) & (FullyQualifiedName!~WasmIsSupported) & (FullyQualifiedName!~WasmSupportsInProcessDiagnosers)"'
+
+ - name: Shutdown dotnet-coverage server.
+ run: dotnet coverage shutdown bdn_coverage --timeout 60000
+
+ - name: Upload coverage artifact
+ uses: actions/upload-artifact@v6
+ with:
+ name: coverage-${{ matrix.os }}
+ path: "**/*.cobertura.xml"
+
+ collect-coverage-netfx:
+ runs-on: windows-latest
+ defaults:
+ run:
+ shell: pwsh
+ steps:
+ - uses: actions/checkout@v6
+
+ - name: Install dotnet-coverage
+ run: dotnet tool install --global dotnet-coverage
+
+ - name: Run task 'build'
+ run: dotnet build BenchmarkDotNet.slnx -c Release
+
+ - name: Start dotnet-coverage with background server mode
+ run: dotnet coverage collect --session-id bdn_coverage --settings tests/CodeCoverage.config --server-mode --background
+
+ - name: Collect Code Coverage
+ run: |
+ dotnet coverage connect bdn_coverage "dotnet test tests/BenchmarkDotNet.Tests -c Release --no-build --framework net462"
+ dotnet coverage connect bdn_coverage "dotnet test tests/BenchmarkDotNet.Analyzers.Tests -c Release --no-build --framework net462"
+
+ - name: Collect Code Coverage for BenchmarkDotNet.IntegrationTests
+ if: ${{ github.event.inputs.skip_integration_tests == 'false'}}
+ run: |
+ dotnet coverage connect bdn_coverage 'dotnet test tests/BenchmarkDotNet.IntegrationTests -c Release --no-build --framework net462 --filter "(FullyQualifiedName!~DotMemoryTests) & (FullyQualifiedName!~DotTraceTests) & (FullyQualifiedName!~WasmIsSupported) & (FullyQualifiedName!~WasmSupportsInProcessDiagnosers)"'
+
+ - name: Shutdown dotnet-coverage server.
+ run: dotnet coverage shutdown bdn_coverage --timeout 60000
+
+ - name: Upload coverage artifact
+ uses: actions/upload-artifact@v6
+ with:
+ name: coverage-windows-netfx
+ path: "**/*.cobertura.xml"
+
+ generate-coverage-report:
+ needs: [collect-coverage, collect-coverage-netfx]
+ runs-on: ubuntu-latest
+ defaults:
+ run:
+ shell: pwsh
+ steps:
+ - uses: actions/checkout@v6
+
+ - uses: actions/download-artifact@v6
+ with:
+ path: coverage
+
+ - name: Upload raw coverage data
+ uses: actions/upload-artifact@v6
+ with:
+ name: coverage
+ path: coverage
+
+ - name: Rewrite file path map to absolute path
+ run: |
+ $baseSourcePath = Get-Location
+ $files = [IO.Directory]::GetFiles("coverage", "coverage.cobertura.xml", [IO.SearchOption]::AllDirectories)
+ foreach($file in $files)
+ {
+ $content = [IO.File]::ReadAllText($file).Replace("/_/", [Environment]::CurrentDirectory + '/')
+ [IO.File]::WriteAllText($file, $content)
+ }
+
+ - name: Install ReportGenerator as global tool
+ run: dotnet tool install --global dotnet-reportgenerator-globaltool
+
+ - name: Geterate reports
+ run: |
+ reportgenerator `
+ -reports:"coverage/**/coverage.cobertura.xml" `
+ -targetdir:"coverage_report/reports" `
+ -reporttypes:"Html;MarkdownSummaryGithub"
+
+ - name: Create index.html
+ run: |
+ $html = @"
+
+
+
+
+ Redirect
+
+
+ If you are not redirected automatically, click here.
+
+
+ "@
+ [IO.File]::WriteAllText("coverage_report/index.html", $html)
+
+ - name: Write coverage summary
+ run: |
+ $markdown = Get-Content coverage_report/reports/SummaryGithub.md -Raw
+ Write-Output $markdown >> $env:GITHUB_STEP_SUMMARY
+
+ - name: Upload HTML report files
+ uses: actions/upload-artifact@v6
+ with:
+ name: coverage_report
+ path: coverage_report
diff --git a/tests/CodeCoverage.config b/tests/CodeCoverage.config
new file mode 100644
index 0000000000..01edb5eff6
--- /dev/null
+++ b/tests/CodeCoverage.config
@@ -0,0 +1,52 @@
+
+
+
+ coverage.cobertura.xml
+ cobertura
+ false
+ true
+ true
+
+
+
+ .*BenchmarkDotNet\.dll$
+ .*BenchmarkDotNet.*\.dll$
+
+
+
+ .*Argon\.dll$
+ .*DiffEngine\.dll$
+ .*EmptyFiles\.dll$
+ .*Microsoft\.CodeAnalysis\.Analyzer\.Testing\.dll$
+ .*Microsoft\.CodeAnalysis\.CSharp\.Analyzer\.Testing\.dll$
+ .*Verify\.dll$
+ .*Verify\.Xunit\.dll$
+
+
+ .*BenchmarkDotNet\.Analyzers\.Tests\.dll$
+ .*BenchmarkDotNet\.Tests\.dll$
+ .*BenchmarkDotNet\.IntegrationTests\.dll$
+
+
+ .*IntegrationTests.*\.dll$
+ .*Dry.*\.dll$
+ .*FSharp.Core\.dll$
+
+
+
+
+ ^System\.CodeDom\.Compiler\.GeneratedCodeAttribute$
+
+
+
+
+ .*\\[^\\]*\CodeAnnotations\.cs
+ .*\\[^\\]*\.g\.cs
+ .*\\[^\\]*\.notcs
+
+
+
+ False
+ False
+
+