name: Tests

on:
  push:
    branches:
      - master
  pull_request:
    branches:
      - master

jobs:
  test:
    name: Run tox on ${{ matrix.os }} for Python ${{ matrix.tox.py_version }}
    runs-on: ${{ matrix.os }}
    strategy:
      matrix:
        os: [ubuntu-latest, macos-latest]
        tox:
          - py_version: '3.7'
            env: py37
          - py_version: '3.8'
            env: py38
          - py_version: '3.9'
            env: py39
          - py_version: '3.10'
            env: py310,flake8,mypy,black
    steps:
      - uses: actions/checkout@v2
      - uses: actions/setup-python@v2
        with:
          python-version: ${{ matrix.tox.py_version }}
      - uses: actions/cache@v2
        with:
          path: .tox
          key: ${{ matrix.os }}-${{ matrix.tox.python-version }}-${{ hashFiles('tox.ini') }}-${{ hashFiles('requirements-dev.txt') }}
      - name: Install tox
        run: python3 -m pip install tox
      - name: Run tox
        run: tox -q -p all -e ${{ matrix.tox.env }}