I want to provide some tests

[EgorBeliaev]

Hello PursuedPyBear maintainers,

I have developed some tests for the _create_surface function to improve the test coverage of the library.
I would appreciate any feedback on these initial tests. Upon approval, I am eager to extend this testing approach to other parts of the codebase.

Thank you for considering my contribution! I look forward to your suggestions.

Here is my fork from which I can create a PR:
https://github.com/EgorBeliaev/pursuedpybear

Best regards,
Egor