Add tests with pytest-qt #21

	name: pytest

	'on':
	push:
	pull_request:
	jobs:
	test:
	runs-on: ubuntu-latest
	env:
	DISPLAY: ':99.0'
	steps:
	- uses: actions/checkout@v4
	- name: Set up Python 3.x
	uses: actions/setup-python@v4
	with:
	python-version: 3.x
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install .
	pip install pytest-qt>=4.2.0
	# https://pytest-qt.readthedocs.io/en/latest/troubleshooting.html#github-actions
	- name: Install libxkbcommon-x11-0 and other requirements
	run: \|
	sudo apt install libxkbcommon-x11-0 libxcb-icccm4 libxcb-image0 libxcb-keysyms1 libxcb-randr0 libxcb-render-util0 libxcb-xinerama0 libxcb-xfixes0 x11-utils
	/sbin/start-stop-daemon --start --quiet --pidfile /tmp/custom_xvfb_99.pid --make-pidfile --background --exec /usr/bin/Xvfb -- :99 -screen 0 1920x1200x24 -ac +extension GLX
	- name: Run tests
	run: \|
	pytest tests/gui.py

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