Add regression testing #402

	name: Automated tests & code coverage

	on: [push, pull_request]

	jobs:
	build:

	runs-on: ${{ matrix.os }}
	strategy:
	fail-fast: False
	matrix:
	python-version: ["3.9", "3.10", "3.11"]
	os: [ubuntu-20.04] #, macos-latest, windows-latest]

	steps:
	- uses: actions/checkout@v3
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install -e ".[develop]"
	pip install git+https://github.com/NREL/electrolyzer.git
	pip install https://github.com/NREL/SEAS/blob/main/SEAS.tar.gz?raw=true
	# - uses: pre-commit/action@v3.0.0
	- name: Run ruff
	run: \|
	ruff check .
	# ruff format
	- name: Run tests and collect coverage
	run: \|
	# -rA displays the captured output for all tests after they're run
	# See the docs: https://doc.pytest.org/en/latest/reference/reference.html#command-line-flags
	pytest -rA tests/
	- name: Generate coverage report
	# Run these tests on unit tests only so that we avoid inflating our code
	# coverage through the regression tests
	if: matrix.os == 'ubuntu-20.04'
	run: \|
	pip install pytest
	pip install pytest-cov
	pytest --cov=./ --cov-report=xml tests/
	- name: Upload coverage to Codecov
	if: ${{ env.CODECOV_TOKEN }} # Don't attempt to upload if the codecov token is not configured
	uses: codecov/codecov-action@v3
	with:
	token: ${{ secrets.CODECOV_TOKEN }}
	files: ./coverage.xml
	fail_ci_if_error: true

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