MMS test for volume calculation in a slab

[totork]

No description provided.

[dschwoerer]

Can you convert this actually in a pytest compatible test?
https://docs.pytest.org/en/stable/getting-started.html#create-your-first-test

[totork]

@dschwoerer I added the pytest structure for the test.

[totork]

I did "ruff check --fix", and it says everything is fine but it does not pass the CI.

[dschwoerer]

You also need to run ruff format or black on the files, to get them format. Right now there are several lines with only whitespace, probably from changing the indent level.

[totork]

Done

[dschwoerer]

Thanks!