name: Test

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

jobs:
  test:
    runs-on: ubuntu-latest
    container:
      # 22.04 ships Python 3.10, which cannot install the pinned Django (it
      # needs >= 3.12). While requirements.txt still said "django>=4.2" that
      # went unnoticed and pip quietly resolved a 4.x here — so CI was testing
      # a different Django than the image actually shipped. 24.04 gives us
      # 3.12, matching the Dockerfile's python:3.12-slim.
      image: catthehacker/ubuntu:act-24.04

    steps:
      - uses: actions/checkout@v4

      - name: Install Python dependencies
        # 24.04 marks its system Python as externally managed (PEP 668), so a
        # bare `pip install` is refused. A venv is the sanctioned way in.
        run: |
          python -m venv /tmp/venv
          /tmp/venv/bin/pip install --no-cache-dir -r requirements.txt

      - name: Django system check
        run: /tmp/venv/bin/python manage.py check

      - name: Run tests
        run: /tmp/venv/bin/python manage.py test