test-coverage.yml

name: Test and Coverage

on:
  pull_request:
    branches:
      - '**'

jobs:
  test-and-coverage:
    runs-on: ubuntu-latest

    steps:
      - name: 1. Check out code
        uses: actions/checkout@v2
        with:
          fetch-depth: '0'

      - name: 2. Set up Java
        uses: actions/setup-java@v1
        with:
          java-version: 1.8

      - name: 3. Build and Test with Coverage
        run: ./gradlew clean build jacocoRootReport --no-daemon

      - name: 4. Upload JaCoCo Report
        uses: actions/upload-artifact@v2
        with:
          name: jacoco-report
          path: build/reports/jacoco/test/jacocoTestReport.xml

      - name: 5. Parse Coverage Results
        id: coverage
        run: |
          thresholds=$(grep -oP '(?<=<counter type="INSTRUCTION" missed="\d+" covered=")\d+(?=")' build/reports/jacoco/test/jacocoTestReport.xml)
          echo "THRESHOLDS=$thresholds" >> $GITHUB_ENV
          violations=0
          for module in coral-common coral-coralservice coral-hive coral-spark coral-trino coral-schema coral-pig coral-incremental coral-spark-plan coral-visualization; do
            coverage=$(grep -A 1 "<package name=\"$module\"" build/reports/jacoco/test/jacocoTestReport.xml | tail -1 | awk '{print $3}')
            threshold=$(grep "$module" <<< "$THRESHOLDS" | awk '{print $2}')
            if [[ "$coverage" -lt "$threshold" ]]; then
              violations=$((violations + 1))
              echo "$module did not meet coverage requirement: $coverage (required: $threshold)"
            else
              echo "$module met coverage requirement: $coverage (required: $threshold)"
            fi
          done
          echo "VIOLATIONS=$violations" >> $GITHUB_ENV

      - name: 6. Post PR Comment with Coverage Report
        uses: marocchino/sticky-pull-request-comment@v2
        if: github.event_name == 'pull_request'
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          header: "JaCoCo Test Coverage Report"
          message: |
            ## Coverage Status by Module:
            {{ steps.coverage.outputs }}

            ${{ env.VIOLATIONS }} modules failed to meet coverage thresholds.

      - name: 7. Fail if Coverage Violations Exist
        if: env.VIOLATIONS != 0
        run: exit 1