Context

Testing

Never use classes for pytest, but only free functions
Do not put __init__.py files into test directories
Tests should not have docstrings unless they are very complicated or very specific, i.e. warrant a description beyond the test's name
All tests should follow the arrange-act-assert pattern. The respective logical blocks should be distinguished via code comments as follows:
```
def test_method() -> None:
    # Arrange
    ...

    # Act
    ...

    # Assert
    ...
```
If two or more tests are structurally equivalent, they should be merged into a single test and parametrized with @pytest.mark.parametrize
If at least two tests share the same logic in the "arrange" step, the respective logic should be extracted into a fixture