in reply to Re: Testing my tests
in thread Testing my tests (mutation testing)

So it would almost seem as though you'd need to actually write tests against your tests.

Won't he then need some tests to test the tests he uses to test his tests?

Replies are listed 'Best First'.
Re^3: Testing my tests
by GrandFather (Saint) on Feb 26, 2017 at 20:02 UTC

    and then a guard to guard the tests against change.

    Premature optimization is the root of all job security

      I've just always felt that if I have 100% coverage of each sub, I must be testing the return value. To boot, I always overlap tests so that it's often not just one test file that uses the return of a sub, so that if I break that return, I may end up with broken tests in several places, if not just several tests within a single file.