bring back cache #19

	name: Unit Tests

	on: [push, pull_request]

	env:
	branch_name: ${{ github.head_ref \|\| github.ref_name }}

	jobs:
	test:
	runs-on: ubuntu-20.04
	permissions:
	pull-requests: write
	contents: read
	steps:
	- name: Check out repository
	uses: actions/checkout@v3

	- name: Set up python
	id: setup-python
	uses: actions/setup-python@v4
	with:
	python-version: 3.10.12

	- name: Install Poetry
	uses: snok/install-poetry@v1
	with:
	version: 1.7.1
	virtualenvs-create: true
	virtualenvs-in-project: true
	installer-parallel: true


	- name: Load cached venv
	uses: actions/cache/restore@v3
	id: cached-poetry-dependencies
	with:
	path: .venv
	key: venv-${{ runner.os }}-${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('**/poetry.lock') }}
	restore-keys: \|
	venv-${{ runner.os }}-

	- name: Install dependencies
	if: steps.cached-poetry-dependencies.outputs.cache-hit != 'true'
	run: \|
	poetry install --no-interaction

	- name: Run tests
	run: \|
	source .venv/bin/activate
	poetry run python -m unittest discover -s tests -v

	- name: 💾 Save cache
	uses: actions/cache/save@v3
	if: env.branch_name == 'main'
	with:
	path: .venv
	key: venv-${{ runner.os }}-${{ steps.setup-python.outputs.python-version }}-${{ hashFiles('**/poetry.lock') }}

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