test.yaml

name: Run tests

on: [pull_request]

jobs:
  test:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        postgres_version: ['14', '16']
    services:
      postgres:
        image: postgres:${{ matrix.postgres_version }}
        env:
          POSTGRES_DB: ndoh_hub
          POSTGRES_USER: postgres
          POSTGRES_PASSWORD: postgres
        ports:
          - 5432:5432
      redis:
        image: redis:6.0
        ports:
          - 6379:6379
    env:
      HUB_DATABASE: postgres://postgres:postgres@localhost:5432/ndoh_hub
    steps:
      - uses: actions/checkout@v2
      - name: Install gettext
        run: sudo apt-get install gettext
      - uses: actions/cache@v2
        with:
          path: ~/.cache/pip
          key: ${{ hashFiles('requirements.txt', 'requirements-dev.txt') }}-pip
      - uses: actions/setup-python@v2
        with:
          python-version: 3.9
      - name: Install dependancies
        run: |
          python -m pip install --upgrade pip
          pip install -r requirements.txt -r requirements-dev.txt
          django-admin compilemessages
      - name: Lint
        run: |
          flake8
          python manage.py makemigrations registrations changes eventstore \
          --dry-run | grep 'No changes detected' || \
          (echo 'There are changes which require migrations.' && exit 1)
          black --check .
          isort -c -rc .
      - name: Run tests and generate coverage report
        run: |
          py.test --cov --cov-report=term-missing | tee coverage.txt
      - name: Extract coverage percentage
        id: extract_coverage
        run: |
          COVERAGE=$(grep -oP 'TOTAL\s+\d+\s+\d+\s+\d+\s+\d+\s+\K\d+%' coverage.txt)
          echo "COVERAGE=$COVERAGE" >> $GITHUB_ENV
      - name: Get changed lines in the PR
        id: get_diff
        run: |
          git fetch origin develop
          git diff origin/develop --unified=0 > diff.txt
          current_file=""
          echo "Changes in files:" > changed_lines.txt

          while IFS= read -r line; do
              if [[ $line == diff* ]]; then
                  current_file=$(echo "$line" | awk '{print $3}' | sed 's|^b/||')
              fi

              if [[ $line == @@* ]]; then
                  # Get line numbers from the hunk header
                  line_numbers=$(echo "$line" | grep -oP '\d+(?=\s)' | xargs | tr ' ' ',')
                  echo "File: $current_file, Changed lines: $line_numbers" >> changed_lines.txt
              fi
          done < diff.txt

          CONTENT=$(cat changed_lines.txt)
          echo "changed_lines=$CONTENT" >> $GITHUB_ENV

          cat changed_lines.txt

      - name: Check for untested lines
        id: check_coverage
        run: |
          UNTTESTED_LINES=""
          
          # Assuming you have a way to get coverage data, replace 'coverage.txt' with your actual coverage file
          while IFS= read -r line; do
              line_number=$(echo "$line" | grep -oP '\d+')
              
              # Check the coverage file for coverage info for this line number
              coverage_info=$(grep -E "^ *$line_number " coverage.txt || true)

              echo "Processing line: $line_number"
              echo "Coverage info: $coverage_info"

              # Check if the coverage info indicates the line is missed
              if [[ $coverage_info == *"missed"* ]]; then
                  UNTTESTED_LINES="$UNTTESTED_LINES\nLine $line_number is not covered by tests."
              fi
          done < changed_lines.txt

          # Save untested lines to the environment variable
          echo -e "UNTTESTED_LINES=$UNTTESTED_LINES" >> $GITHUB_ENV

          # Optional: Print untested lines for debugging
          echo "Untested lines: $UNTTESTED_LINES"

      - name: Post coverage comment on PR
        uses: actions/github-script@v6
        with:
          github-token: ${{ secrets.GITHUB_TOKEN }}
          script: |
            const coverage = process.env.COVERAGE;
            const prNumber = context.payload.pull_request.number;
            const untestedLines = process.env.UNTTESTED_LINES || "None";
            const commentBody = `PR Untested Lines: ${untestedLines}\n\n\nOverall Test coverage: ${coverage}`;

            await github.rest.issues.createComment({
              issue_number: prNumber,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: commentBody
            });