Add regression-guard tests for validation steps, CMake parser, and ro… #136

	name: Python Unit Tests

	on:
	push:
	branches:
	- main
	pull_request:
	branches:
	- main

	jobs:
	test:
	runs-on: ubuntu-latest
	container: ros:jazzy-ros-base
	steps:
	- name: Check out repository
	uses: actions/checkout@v3

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: '3.12'

	- name: Install system dependencies
	run: \|
	sudo apt-get update
	sudo apt-get install -y libxml2-dev libxslt-dev
	sudo apt-get install -y pip
	sudo apt-get install -y python3-rosdep

	- name: Install Python dependencies
	run: \|
	python -m pip install --upgrade pip
	python -m pip install --no-cache-dir lxml coverage
	python -m pip install . --break-system-packages

	- name: Update rosdep
	run: \|
	rosdep update

	- name: Run unit tests with coverage (always emit XML)
	env:
	PYTHONPATH: ${{ github.workspace }}
	run: \|
	set +e
	python3 -m coverage run --branch --source=package_xml_validation \
	-m unittest discover -s tests -p "test_*.py" -t .
	status=$?
	# Always generate reports so Codecov has something to ingest
	python3 -m coverage xml -o coverage.xml \|\| true
	python3 -m coverage report -m \|\| true
	python3 -m coverage html \|\| true
	exit $status

	- name: Upload coverage HTML as artifact
	if: always()
	uses: actions/upload-artifact@v4
	with:
	name: coverage-html
	path: htmlcov

	- name: Upload to Codecov
	if: always()
	uses: codecov/codecov-action@v4
	with:
	files: coverage.xml
	verbose: true

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