Add new test test_should_return_last_for_nonempty_directory_files #51

	name: Run Unit Tests

	on:
	push

	jobs:

	run_tests:

	runs-on: ubuntu-latest

	steps:

	- name: Get sources
	uses: actions/checkout@v4

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: '3.10'

	- name: Installing dependencies
	run: pip install --upgrade pip black --quiet

	- name: Style check
	run: black . --check

	- name: Install module
	run: pip install -e .

	- name: Running tests
	run: python -m unittest discover -s tests -p *_test.py

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