What are Skipped mutants?

[martinssipenko]

When I'm running Infection in CI I see that there are several Skipped mutants but I don't quite get what that means. I also was not able to find this information in the documentation. Could someone explain what are Skipped mutants in more detail?

Also, when I run Infection locally I do not get any skipped mutants, any ideas what could be the reason for that? Locally I have the exact same setup as on CI.

[maks-rafalko]

Please see the following explanation on Infection docs site: https://infection.github.io/2020/08/18/whats-new-in-0.17.0/#Skip-S-mutations-that-are-over-specified-time-limit

Also, when I run Infection locally I do not get any skipped mutants, any ideas what could be the reason for that?

Probably, tests are executed slower on CI and on CI configured timeout (which is 10 seconds by default) is not enough, thus you have Skipped Mutants.

Try to increase this value and check if you still have Skipped Mutants on CI.

[martinssipenko]

Thanks, I've updated the timeout value and mutations are not being marked as skipped anymore.