ci: enforce 80% line coverage gate on TeamsISO.Engine

.forgejo/workflows/ci.yml

@@ -34,11 +34,39 @@ jobs:
           --no-build
           --logger "trx;LogFileName=test-results.trx"
           --collect:"XPlat Code Coverage"
+          --settings coverlet.runsettings
           --filter "Category!=ndi&requires!=ndi"
 
+      - name: Install ReportGenerator
+        run: dotnet tool install --global dotnet-reportgenerator-globaltool
+
+      - name: Generate coverage report
+        run: |
+          export PATH="$PATH:$HOME/.dotnet/tools"
+          reportgenerator \
+            -reports:"**/coverage.cobertura.xml" \
+            -targetdir:coverage-report \
+            -reporttypes:"Cobertura;TextSummary" \
+            -assemblyfilters:"+TeamsISO.Engine;-TeamsISO.Engine.NdiInterop"
+
+      - name: Enforce coverage threshold (80%)
+        run: |
+          summary=$(cat coverage-report/Summary.txt)
+          echo "$summary"
+          line_coverage=$(echo "$summary" | awk '/Line coverage/ {print $3}' | tr -d '%')
+          echo "Line coverage: $line_coverage%"
+          awk -v c="$line_coverage" 'BEGIN { if (c+0 < 80) { exit 1 } }'
+
       - name: Upload test results
         if: always()
         uses: actions/upload-artifact@v4
         with:
           name: test-results
           path: '**/test-results.trx'
+
+      - name: Upload coverage report
+        if: always()
+        uses: actions/upload-artifact@v4
+        with:
+          name: coverage-report
+          path: coverage-report/

coverlet.runsettings

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<RunSettings>
+  <DataCollectionRunSettings>
+    <DataCollectors>
+      <DataCollector friendlyName="XPlat code coverage">
+        <Configuration>
+          <Format>cobertura,opencover</Format>
+          <Exclude>[*.Tests]*,[*.NdiInterop]*,[*.IntegrationTests]*</Exclude>
+          <ExcludeByAttribute>GeneratedCodeAttribute,CompilerGeneratedAttribute</ExcludeByAttribute>
+        </Configuration>
+      </DataCollector>
+    </DataCollectors>
+  </DataCollectionRunSettings>
+</RunSettings>