[whymarrh]

I was just about to bring up mutation testing. I've had some pretty great success with PIT [1] when writing Java. Code coverage and mutation test coverage pair wonderfully together.

  [1]:https://pitest.org

[TeaVMFan]

Mutation coverage definitely improves the testing process. It is much harder to accidentally write bad tests once you are using a tool like PIT: https://frequal.com/java/HighQualityTestsWithPitMutationTest...

[g14i]

whymarrh, great that you mentioned PIT. This is exactly what we use for Java as well.

For Python we use mutmut [1].

[1] - https://pypi.org/project/mutmut/

[boxed]

Mutmut author here. Great to hear you're using mutmut!

I think it's pretty important that we who know about MT and have used it keep talking about it. It's a pretty great tool that more people should have in their tool belt.