installation-test.yml

name: Installation test
on: 
    push:
        paths:
            - 'requirements.txt'
            - 'pytest.ini'
            - '.github/workflows/installation-test.yml'
    workflow_dispatch:

# This allows a subsequently queued workflow run to interrupt previous runs
concurrency:
  group: e2e-'${{ github.workflow }} @ ${{ github.event.pull_request.head.label || github.head_ref || github.ref }}'
  cancel-in-progress: true

jobs:
  python-install:
    strategy:
        matrix:
            os: ["ubuntu-20.04", "ubuntu-22.04"]
            python-ver: ["3.7", "3.8", "3.9", "3.10", "3.11"]
            exclude:
                - os: ubuntu-22.04
                  python-ver: 3.6
    runs-on: ${{ matrix.os }} 
    steps:
      - name: Check out code
        uses: actions/checkout@v3
        with:
          # Use the branch specified by the workflow_dispatch input or the pull_request event
          ref: ${{ github.event.inputs.branch || github.event.pull_request.head.ref }}
      - name: Install Python ${{ matrix.python-ver}}
        uses: actions/setup-python@v4
        with:
          python-version: ${{ matrix.python-ver}}
      - name: Display Python version
        run: python -c "import sys; print(sys.version)"
      - name: Installation steps on ${{ matrix.os }} w ${{ matrix.python-ver}} 
        run: | 
          pip install --upgrade pip
          pip install --upgrade cython
          pip install -U -r requirements.txt
      - name: Run collect only
        run: pytest --collect-only