name: Tests

on: [push, pull_request]

env:
  PY_COLORS: "1"

jobs:
  test:
    runs-on: ${{ matrix.os }}
    continue-on-error: ${{ matrix.experimental }} # See: https://docs.github.com/en/actions/reference/workflow-syntax-for-github-actions#jobsjob_idcontinue-on-error
    strategy:
      matrix:
        os: [ubuntu-latest, macos-latest, windows-latest]
        experimental: [false]
        python-version: [3.6, 3.7, 3.8, 3.9, pypy3]
        include:
          - python-version: 3.10.0-alpha.7  # Newest: https://github.com/actions/python-versions/blob/main/versions-manifest.json
            os: ubuntu-latest
            experimental: true
      fail-fast: false
    steps:
    - uses: actions/checkout@v2
    - name: Set up Python ${{ matrix.python-version }}
      uses: actions/setup-python@v2
      with:
        python-version: ${{ matrix.python-version }}
    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install tox
    - name: Test with pytest via tox
      run: |
        tox -e gh

  format:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
    - name: Set up Python 3.9
      uses: actions/setup-python@v2
      with:
        python-version: 3.9
    - name: Install dependencies
      run: |
        python -m pip install --upgrade pip
        pip install -r requirements-lint.txt
    - name: Code Format Check with Black
      run: |
        black --check --verbose .