name: Windows and macOS

permissions:
  contents: read

# Non-blocking portability runs (#420): never on pull requests or in the merge queue, and no context
# here is a required check. A red run is fixed at its cause before the workspace cutover (#334).
on:
  push:
    branches: [main]
  schedule:
    - cron: "17 3 * * *"
  workflow_dispatch:

# Every run gets its own group (run_id), so no main commit's run is ever cancelled or dropped as pending.
concurrency:
  group: ${{ github.workflow }}-${{ github.run_id }}
  cancel-in-progress: false

env:
  PYTHONFAULTHANDLER: "1"

# Time limit rule as in test.yml: ceil(1.5 x the slowest of three recent green runs on main) + 3
# minutes, never under 5. Measured 2026-10-26 in test.yml on runs 40257217681 (3be0ada),
# 40240706568 (fb9134f), 40228167328 (f9835aa), before these legs moved here in #420:
#   slowest py3.10 on windows-latest: 12m43s / 15m54s / 14m53s -> 27 min
#     (macos 6m14s-8m30s, windows 11m42s-15m54s)
jobs:
  test:
    name: py${{ matrix.python-version }} on ${{ matrix.os }}
    runs-on: ${{ matrix.os }}
    timeout-minutes: 27
    strategy:
      fail-fast: false
      matrix:
        os: [windows-latest, macos-latest]
        python-version: ["3.12", "3.13", "3.14"]

    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 tests.run_suite -v