I think this is related to #18 but didn't want to clutter the comment history if that's not the case.

I am looking for a way to enforce certain tests, usually the tests within a specific class, to be executed in serial due to that they interfere with each other. I could use -n0 but that would be an overreach - it would apply to the entire test run, not just for a specific class for instance. Would it be possible to just have a decorator directive on the class to 1. instruct xdist to schedule the tests in the class to the same slave as well as 2. instruct them to be run in serial?

If there are other ways of achieving this, I would be interested in that too.

Thanks for a great product.