name: Python package

on: [push]

jobs:
  build:
    name: Python ${{ matrix.python-version }} / ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
    strategy:
      max-parallel: 4
      matrix:
        python-version: [3.6, 3.7, 3.8]
        os: [ubuntu-latest, windows-latest, macOS-latest]

    steps:
    - uses: actions/checkout@v1
    - 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 poetry
        poetry install
    - name: Test with pytest
      run: |
        poetry run pytest