CI test-extras modularization: where do we want to take this?

[h-mayorquin]

@alejoe91 @samuelgarcia, I am thinking of moving forward with modularized extras per module in the tests (following this TODO). I have a vague memory that you two decided you wanted to move in another direction. Where do you stand on the topic now?

[alejoe91]

Hey @h-mayorquin

No I'm totally in favor to this! As you noticed in other fixes/PRs, the current state after preprocessing has a single "test" extra which makes it very hard to pinpoint version failures (that's why I added pip lists allover the place!).

Ideally, we would have a test_{module} for each module :) Do you have time to work on this?