Freeze deps #92

	name: Tests

	on: ["push"]

	jobs:
	test:
	strategy:
	matrix:
	# I'd like to test on Windows and Mac, but Github's Mac runner doesn't come with Docker and Windows
	# runner can't run Linux images yet. See https://github.com/actions/virtual-environments/issues/1143
	os: [ubuntu-latest]
	python-version: [3.7, 3.9]
	runs-on: ${{ matrix.os }}

	steps:
	- uses: actions/checkout@v2

	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}

	- uses: actions/cache@v1
	with:
	path: .pip_cache
	key: ${{ runner.os }}-${{ matrix.python-version }}-pip-${{ hashFiles('requirements.txt', 'requirements-dev.txt') }}
	restore-keys: \|
	${{ runner.os }}-pip-

	- name: Install dependencies
	run: \|
	python -m pip --cache-dir .pip_cache install --upgrade pip
	pip install -r requirements-dev.txt

	# Using this action instead of Docker's official action seems to let me cache and still use the script to build the images
	- uses: satackey/action-docker-layer-caching@v0.0.11
	continue-on-error: true

	- name: Run tests
	run: python3 run_tests.py

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