How do people maintain their test suite?

Posted by Ida on Programmers See other posts from Programmers or by Ida
Published on 2012-10-08T05:02:24Z Indexed on 2012/10/08 9:47 UTC
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testing

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Maintenance

In particular, I'm curious about the following aspects:

How do you know that your test cases are wrong (or out-of-date) and needed to be repaired (or discarded)? I mean, even if a test case became invalid, it might still pass and remain silent, which could let you falsely believe that your software works okay. So how do you realize such problems of your test suite?
How do you know that your test suite is no longer sufficient and that new test cases should be added? I guess this has something to do with the requirement changes, but is there any systematic approach to check the adequacy of test suite?

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