PIT (PIT Mutation Testing)

PIT Mutation Testing (PIT) is a method used by developers to check the quality of their software tests. It works by making small, intentional changes (mutations) to the code—like altering a calculation or a condition—and then running the existing tests. If the tests detect the change and fail, it shows they are effective at catching errors. If the tests pass despite the change, it indicates that the tests might need to be improved. PIT helps ensure that testing is thorough and that the software is reliable by identifying gaps in test coverage.