Exit code consolidation

We don't know in advance how many workers we need for the tests (it depends on information we calculate in pytest_generate_tests), so if we have too many workers, we skip the redundant ones (as suggested here - https://stackoverflow.com/questions/33400071/skip-parametrized-tests-generated-by-pytest-generate-tests-at-module-level) and it works

Problem now is the exit code. For some reason, if I have some workers which returns exitstatus 0 (OK), and some workers which returns exitstatus 5 (NO_TESTS_COLLECTED), the general return code from the pytest run (from master) is 5 (where I want it to be 0, because all of the collected tests passed).

Is that a bug or the desired behavior? And if it's the latter, any ideas to how can I accomplish the behavior I want?

Start by reproducing the case where pytest_generate_tests creates fewer tests than available workers, leaving some workers with exitstatus 5 while others return 0. Trace how pytest-xdist consolidates worker exit statuses; done means the master returns 0 when all collected tests pass despite redundant workers reporting NO_TESTS_COLLECTED.