name: CI

on:
  pull_request:
    branches: [ master ]

jobs:
  test:
    name: Unit tests (Python ${{ matrix.python-version }})
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        # 3.9/3.11 use the stdlib `cgi` module; 3.13 has it removed, so this
        # also exercises the `legacy-cgi` backport that the manifest pulls in.
        python-version: ['3.9', '3.11', '3.13']

    steps:
      - name: Checkout
        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0

      - name: Set up Python ${{ matrix.python-version }}
        uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
        with:
          python-version: ${{ matrix.python-version }}

      - name: Install Poetry
        run: pipx install poetry

      - name: Install dependencies
        run: |
          poetry env use python
          poetry install --with dev

      - name: Run test suite
        run: poetry run pytest