Switching tests to pytest?

[Ilia Kurenkov]

Has anyone tried this? If not, would they be interested and have the time to do so? I'm interested, but short on time currently.

I know that at least the tests for the language model module can be greatly simplified by introducing pytest, and pytest should be able to generally run unittests, but maybe we have some obscure edge-case dependency on them that I'm not aware of.