Please could you add unit tests, and mention this in the release notes?

I've added it to the release notes but am not quite sure how the unit tests work, especially the parametrization :/

I've created void4#1 with my suggestion for a test - I've copied test_ellipse() and made some modifications to update it.

To provide some information though, parametrization is essentially a loop - it runs the test with different items from a sequence. The idea is that if a particular scenario fails, pytest will clearly let us know which item from the parametrization sequence is the culprit. If you're interested more info, you can read up at https://docs.pytest.org/en/7.4.x/how-to/parametrize.html

Thank you - merged :)

Thank you!