test.yml

name: Test Workflow with Coverage

on:
  push:
    branches:
      - main
      - demo-v4
      - dev-v4
    paths:
      - 'src/backend/**/*.py'
      - 'src/tests/**/*.py'
      - 'src/mcp_server/**/*.py'
      - 'src/**/pyproject.toml'
      - 'pytest.ini'
      - 'conftest.py'
      - 'src/backend/requirements.txt'
      - '.github/workflows/test.yml'
  pull_request:
    types:
      - opened
      - ready_for_review
      - reopened
      - synchronize
    branches:
      - main
      - demo-v4
      - dev-v4
    paths:
      - 'src/backend/**/*.py'
      - 'src/tests/**/*.py'
      - 'src/mcp_server/**/*.py'
      - 'pytest.ini'
      - 'conftest.py'
      - 'src/backend/requirements.txt'
      - 'src/**/pyproject.toml'
      - '.github/workflows/test.yml'

jobs:
  test:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout code
        uses: actions/checkout@v4

      - name: Set up Python
        uses: actions/setup-python@v4
        with:
          python-version: '3.11'

      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          pip install -r src/backend/requirements.txt

      - name: Check if test files exist
        id: check_tests
        run: |
          if [ -z "$(find src -type f -name 'test_*.py')" ]; then
            echo "No test files found, skipping tests."
            echo "skip_tests=true" >> $GITHUB_ENV
          else
            echo "Test files found, running tests."
            echo "skip_tests=false" >> $GITHUB_ENV
          fi

      - name: Run tests with coverage
        if: env.skip_tests == 'false'
        env:
          PYTHONPATH: src:src/backend
        run: |
          # Run test_app.py first (isolation required)
          python -m pytest src/tests/backend/test_app.py --cov=src/backend --cov-config=.coveragerc -q
          
          # Run remaining backend tests with coverage append
          python -m pytest src/tests/backend --cov=src/backend --cov-append --cov-report=term --cov-report=xml --cov-config=.coveragerc --ignore=src/tests/backend/test_app.py

      - name: Check coverage threshold
        if: env.skip_tests == 'false'
        run: |
          if [ -f coverage.xml ]; then
            COVERAGE=$(python -c "import xml.etree.ElementTree as ET; tree = ET.parse('coverage.xml'); root = tree.getroot(); print(float(root.attrib.get('line-rate', 0)) * 100)")
            echo "Overall coverage: $COVERAGE%"
            if (( $(echo "$COVERAGE < 80" | bc -l) )); then
              echo "::error::Coverage is below 80% threshold. Current: $COVERAGE%"
              exit 1
            fi
            echo "✅ Coverage threshold met: $COVERAGE% >= 80%"
          else
            echo "::error::coverage.xml not found"
            exit 1
          fi

      - name: Skip coverage report if no tests
        if: env.skip_tests == 'true'
        run: |
          echo "Skipping coverage report because no tests were found."