test.yml

name: CI

on:
  push:
    branches: [master]
  pull_request:
    branches: [master]

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v3

      - name: Install deps
        run: |
          sudo apt-get update
          sudo apt-get install -y cmake build-essential libgtest-dev lcov
          cd /usr/src/googletest
          cmake -S . -B build -DCMAKE_BUILD_TYPE=Debug
          make --build build
          sudo make install

      - name: Configure & build (with coverage)
        run: |
          cmake -S . -B build \
          -DENABLE_COVERAGE=ON \
          -DBUILD_TESTING=ON \
          -DCMAKE_BUILD_TYPE=Debug

          cmake --build build --parallel

      - name: Zero coverage counters
        run: lcov -d build -z

      - name: Run tests
        run: ctest --test-dir build --output-on-failure

      - name: Debug coverage output
        run: |
          echo "=== .gcno files in build ==="
          find build -type f -name '*.gcno' || echo "(none)"
          echo "=== .gcda files anywhere ==="
          find . -type f -name '*.gcda' || echo "(none)"

      - name: Capture coverage
        run: lcov -d build -c -o coverage.info

      - name: Filter coverage
        run: lcov -r coverage.info '/usr/*' '*/test/*' -o coverage.filtered.info

      - name: Generate HTML report
        run: genhtml coverage.filtered.info --output-directory coverage-report

      - name: Upload coverage-report
        uses: actions/upload-artifact@v4
        with:
          name: coverage-report
          path: coverage-report

      - name: Upload coverage reports to Codecov
        uses: codecov/codecov-action@v5
        with:
          token: ${{ secrets.CODECOV_TOKEN }}
          files: coverage.filtered.info
          fail_ci_if_error: true