dotenv-diff/.github/workflows/test-coverage.yml at main · Chrilleweb/dotenv-diff · GitHub

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name: Tests & Coverage

on:
  pull_request:
    branches: [main]

jobs:
  test:
    if: github.actor != 'dotenv-diff-release-bot'
    runs-on: ubuntu-latest
    permissions:
      contents: write
      pull-requests: write

    steps:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd
        with:
          fetch-depth: 0
          ref: ${{ github.event.pull_request.head.sha }}

      - uses: pnpm/action-setup@fc06bc1257f339d1d5d8b3a19a8cae5388b55320

      - uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f
        with:
          node-version: 20
          cache: 'pnpm'

      - run: pnpm install --frozen-lockfile

      - name: Install diff-cover
        run: pip install diff-cover

      - name: Run coverage
        run: pnpm run coverage

      - name: Fix lcov paths
        run: |
          if [ -f "coverage/lcov.info" ]; then
            sed -i "s|^SF:|SF:|g" coverage/lcov.info
          fi

      - name: Run diff-cover analysis
        id: diff_cover
        run: |
          echo "## 📊 Unit Test Coverage" > comment.md
          echo "" >> comment.md

          COVERAGE_THRESHOLD=80
          all_passed=true

          overall_coverage="N/A"
          if [ -f "coverage/coverage-summary.json" ]; then
            overall_coverage=$(jq -r '.total.lines.pct' "coverage/coverage-summary.json")
          fi

          diff-cover coverage/lcov.info \
            --compare-branch=origin/${{ github.event.pull_request.base.ref }} \
            --diff-range-notation=... \
            --json-report diff-coverage.json \
            --fail-under=0 || true

          echo "**Overall coverage**: ${overall_coverage}%" >> comment.md
          echo "" >> comment.md

          if [ -f "diff-coverage.json" ]; then
            total_lines=$(jq -r '.total_num_lines' diff-coverage.json)

            if [ "$total_lines" != "0" ] && [ "$total_lines" != "null" ]; then
              percent=$(jq -r '.total_percent_covered' diff-coverage.json)
              violations=$(jq -r '.total_num_violations' diff-coverage.json)
              covered=$((total_lines - violations))

              if [ "$percent" -lt "$COVERAGE_THRESHOLD" ]; then
                all_passed=false
              fi

              if [ "$percent" = "100" ]; then
                emoji="✅"
                status="PASS"
              elif [ "$percent" -ge "$COVERAGE_THRESHOLD" ]; then
                emoji="⚠️"
                status="PASS"
              else
                emoji="❌"
                status="FAIL"
              fi

              echo "**Diff coverage**: $emoji ${percent}% (${covered}/${total_lines} lines) - $status" >> comment.md
              echo "" >> comment.md

              if [ "$violations" != "0" ]; then
                echo "<details>" >> comment.md
                echo "<summary>🔍 Uncovered lines in diff</summary>" >> comment.md
                echo "" >> comment.md
                echo '```' >> comment.md
                jq -r '.src_stats | to_entries[] | .key as $file | .value.violation_lines[] | "\($file):\(.)"' diff-coverage.json >> comment.md
                echo '```' >> comment.md
                echo "" >> comment.md
                echo "</details>" >> comment.md
              fi
            else
              echo "✨ No new testable lines in this PR" >> comment.md
            fi
          fi

          echo "---" >> comment.md
          echo "" >> comment.md
          if [ "$all_passed" = true ]; then
            echo "✅ **Coverage threshold met** (≥${COVERAGE_THRESHOLD}%)" >> comment.md
          else
            echo "❌ **Coverage threshold not met** (required: ≥${COVERAGE_THRESHOLD}%)" >> comment.md
          fi

          echo "all_passed=$all_passed" >> $GITHUB_OUTPUT

      - name: Comment PR with coverage
        if: github.event.pull_request.head.repo.fork == false
        uses: marocchino/sticky-pull-request-comment@70d2764d1a7d5d9560b100cbea0077fc8f633987
        with:
          path: comment.md

      - name: Fail if coverage is below threshold
        if: steps.diff_cover.outputs.all_passed == 'false'
        run: |
          echo "❌ Coverage check failed: Coverage below 80%"
          exit 1