name: CI

on: [push, pull_request]

jobs:
  unit-tests:
    runs-on: ubuntu-latest
    strategy:
      max-parallel: 3
      matrix:
        python-version: ['3.7', '3.8', '3.9', '3.10']

    steps:
      - name: checkout
        uses: actions/checkout@v2
        
      - name: Set up Python ${{ matrix.python-version }}
        uses: actions/setup-python@v1
        with:
          python-version: ${{ matrix.python-version }}

      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          pip install tox tox-gh-actions

      - name: Test with tox
        run: tox

      - name: Upload coverage to Codecov
        uses: codecov/codecov-action@v1