Add Windows and macOS test runs #130

	name: "Run tests"
	on: [pull_request, workflow_call]
	jobs:
	build:
	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	os: [ubuntu-latest, windows-latest, macos-latest]
	env:
	SDL_AUDIODRIVER: dummy
	SDL_VIDEODRIVER: dummy
	steps:
	- uses: actions/checkout@v4
	- name: Set up Python 3.x
	uses: actions/setup-python@v5
	with:
	python-version: '3.12'
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -r requirements.txt -r requirements-dev.txt
	- name: Install project
	run: pip install .
	- name: Lint with flake8
	run: \|
	# stop the build if there are Python syntax errors or undefined names in the entire repo
	flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
	# stricter tests for mission critical code
	flake8 --count src test
	- name: Run tests
	run: pytest
	- uses: actions/upload-artifact@v4
	if: ${{ failure() }}
	with:
	name: failed-image
	path: test/failed-image

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