name: Run tests

on: [push, pull_request]

jobs:
  run-tests:

    strategy:
      matrix:
        python-version: [2.7, 3.5, 3.6, 3.7, 3.8, 3.9, 'pypy-2.7']

    name: Python ${{ matrix.python-version }}
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2
      - uses: actions/setup-python@v2
        with:
          python-version: ${{ matrix.python-version }}
      - name: Cache pip
        uses: actions/cache@v2
        with:
          # This path is specific to Linux/Unix
          path: ~/.cache/pip
          key: ${{ runner.os }}-pip
      - name: Install dependencies
        run: |
          python --version
          python -m pip install --upgrade "pip<21.0" "setuptools<45" wheel
          pip --version
          python -m pip --version
          python -m pip install --upgrade virtualenv tox tox-gh-actions
      - name: Run tox targets for ${{ matrix.python-version }}
        run: python -m tox