name: Test Backend

on:
  push:
    branches:
      - main
  pull_request:
    types:
      - opened
      - synchronize

# A new push supersedes the run still queued for the commit before it. Without
# this each commit leaves its own run in the queue and a runner that was offline
# for a while works through a backlog of results nobody will read.
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

jobs:
  test-backend:
    runs-on: ubuntu-latest
    # The floor `requires-python` declares and the newest release, so neither
    # end of the supported range goes untested.
    strategy:
      fail-fast: false
      matrix:
        python-version: ["3.12", "3.14"]
    env:
      # uv would otherwise take a managed interpreter it already has over the
      # one set up below.
      UV_PYTHON: ${{ matrix.python-version }}
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: ${{ matrix.python-version }}
      - name: Set up uv
        uses: astral-sh/setup-uv@v7
        with:
          cache-dependency-glob: |
            pyproject.toml
            backend/pyproject.toml
            uv.lock
      # The extras too, as `make test-backend` does: the mail, MQTT and Influx
      # tests import what only the `server` extra installs.
      - run: uv sync --all-extras
      # Nothing to start: the suite names its own SQLite file in a temp
      # directory (backend/tests/__init__.py), the mail paths are patched, and
      # the flow engine falls back to in-memory state without a Redis host.
      - name: Run tests with coverage
        run: uv run bash scripts/test.sh "Coverage for ${{ github.sha }}"
        working-directory: backend
      - name: Check the wheels build
        # Cheap, and it catches a data file that stopped being packaged —
        # alembic's revisions and the email templates ride along by directory.
        run: |
          uv build --all-packages --out-dir dist
          uv run --no-project --with dist/fluksio_worker-*.whl fluksio-worker --help