Revert "ci(opinionated): Test update actions versions" #314

	name: Tests

	on: [push, pull_request]

	jobs:
	build:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: [3.7, 3.8, 3.9]

	steps:
	- uses: actions/checkout@v2
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v1
	with:
	python-version: ${{ matrix.python-version }}

	- name: Install Poetry
	uses: snok/install-poetry@v1
	with:
	version: 1.1.6
	virtualenvs-create: true
	virtualenvs-in-project: true

	- name: Load cached venv
	id: cached-poetry-dependencies
	uses: actions/cache@v2
	with:
	path: .venv
	key: venv-${{ runner.os }}-${{ matrix.python-version }}-${{ hashFiles('**/poetry.lock') }}

	- name: Install dependencies
	run: poetry install
	if: steps.cached-poetry-dependencies.outputs.cache-hit != 'true'

	- name: Activate venv
	run: \|
	echo "VIRTUAL_ENV=$GITHUB_WORKSPACE/.venv" >> $GITHUB_ENV
	echo "PYTHONPATH=$GITHUB_WORKSPACE" >> $GITHUB_ENV
	echo "$GITHUB_WORKSPACE/.venv/bin" >> $GITHUB_PATH

	- name: Run tests
	run: python -m unittest discover -s tests -p 'test_*.py'

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