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Can I prevent mutants which mypy kills?

See original GitHub issue

I have many “false” surviving mutants like this one:

This mutant would be killed by mypy in the CI pipeline. However, it survives as I only run pytest -m "not slow" -x and pytest -m "not slow " && mypy app/ does not work. I’ve also tried pytest -m "not slow" --mypy -x, but that runs mypy over the tests as well which fails / makes each run pretty slow.

Do you have any suggestions what I could do?

Issue Analytics

State:
Created 3 years ago
Comments:12 (10 by maintainers)

Top GitHub Comments

2reactions

MartinThomacommented, Dec 9, 2020

@boxed I think I’ve heard you mention this on a podcast recently. I need to remember that one in future 😄 (btw: Thank you for talking about it in a podcast / putting that much time and effort in Open Source projects ❤️ )

2reactions

boxedcommented, Dec 9, 2020

@pedernot you should absolutely add -x to the pytest call. There is no need to run any more tests if a test has already failed.

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