name: Tests

permissions:
  contents: read

on:
  pull_request:
    branches: [main]
  push:
    branches: [main]

jobs:
  test:
    name: py${{ matrix.python-version }} on ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        os: [ubuntu-latest, windows-latest, macos-latest]
        python-version: ["3.10", "3.11", "3.12"]

    steps:
      - uses: actions/checkout@v7

      - name: Set up Python ${{ matrix.python-version }}
        uses: actions/setup-python@v7
        with:
          python-version: ${{ matrix.python-version }}
          cache: pip
          cache-dependency-path: requirements-dev.txt

      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          pip install -r requirements-dev.txt

      - name: Run tests
        run: python -m unittest discover -s tests -v

  coverage:
    name: coverage gate (85%)
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v7

      - uses: actions/setup-python@v7
        with:
          python-version: "3.12"
          cache: pip
          cache-dependency-path: requirements-dev.txt

      - name: Install dependencies
        run: |
          python -m pip install --upgrade pip
          pip install -r requirements-dev.txt

      - name: Measure coverage
        run: |
          python -m coverage run -m unittest discover -s tests
          python -m coverage combine
          python -m coverage report --fail-under=85

  lint:
    name: black and flake8
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v7
      - uses: actions/setup-python@v7
        with:
          python-version: "3.12"
      - run: pip install black flake8
      - run: black --check .
      - run: flake8 .

  js-test:
    name: frontend modules
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v7

      # Pure-JS frontend modules, tested with the runner's preinstalled Node
      - name: Run JS tests
        run: node --test tests/js/*.test.js