Add an integration test for VNC + websockify #257

	# This is a GitHub workflow defining a set of jobs with a set of steps.
	# ref: https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions
	#
	name: Integration Tests

	on:
	pull_request:
	push:
	branches-ignore:
	- "dependabot/**"
	- "pre-commit-ci-update-config"
	tags: ["**"]
	workflow_dispatch:

	defaults:
	run:
	# Both TigerVNC and TurboVNC reports "the input device is not a TTY" if
	# started without a TTY. GitHub Actions environments doesn't come with one,
	# so this provides one.
	#
	# ref: https://github.com/actions/runner/issues/241#issuecomment-842566950
	#
	shell: script --quiet --return --log-out /dev/null --command "bash -e {0}"

	jobs:
	image-test:
	runs-on: ubuntu-22.04
	timeout-minutes: 10
	strategy:
	fail-fast: false
	matrix:
	include:
	- vncserver: tigervnc
	- vncserver: turbovnc

	steps:
	- uses: actions/checkout@v4

	- uses: actions/setup-python@v5
	with:
	python-version: "3.10"

	- name: Install testing requirements
	run: \|
	pip install -r dev-requirements.txt
	# Install websocat, needed for integration tests
	wget -q https://github.com/vi/websocat/releases/download/v1.12.0/websocat.x86_64-unknown-linux-musl \
	-O /usr/local/bin/websocat
	chmod +x /usr/local/bin/websocat

	- name: Run Integration tests
	run: \|
	export PYTHONUNBUFFERED=1
	py.test integration-tests/ -s --full-trace

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