[Calzifer]

A PiTest blog post [1] mentions an interesting article [2] on how mutation testing is (or was) used by Google.

If I remember correctly, instead of overwhelming the developer with the full report, CI only presented a hand full of randomly chosen failed mutation tests. The developer then could decide to ignore the result (mutation testing will usually produce some false positives) or extend the tests to kill the mutation.

I used PiTest recently the first time and found it quite useful. As you said, a pretty awesome idea. But definitely not a tool for people who always strive for 100% test coverage.

[1] https://blog.pitest.org/dont-let-your-code-dry/

[2] https://homes.cs.washington.edu/~rjust/publ/mutation_testing...