> Some tests use time.sleep() as a basic synchronization primitive,
> because other synchronization primitive cannot be used. For example,
> lock_tests.py tests locks and so cannot use lock in its tests.
> The problem is that slow buildbots require long sleep. It makes 
> the test suite slow, whereas fast buildbots could use short lseep

Would it be possible to create a decorator to make these test adaptive (run once with a short sleep and retry with a long sleep if the first fails)?