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TotT: Refactoring Tests in the Red

Thursday, April 26, 2007
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5 comments :

  1. Jeffrey FredrickApril 26, 2007 at 7:50:00 AM PDT

    The key insight here is "failure is the test for tests".

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  2. Ryan DavisApril 27, 2007 at 12:59:00 AM PDT

    Modifying the implementation to make sure the tests fail is exactly what heckle does in ruby. Using it as a mechanism for refactoring is novel tho... I'll have to poke around with that. Thanks!

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  3. UnknownMay 9, 2007 at 9:38:00 PM PDT

    This comment has been removed by a blog administrator.

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  4. UnknownMay 9, 2007 at 9:38:00 PM PDT

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  5. Marko SchulzMay 16, 2007 at 2:35:00 AM PDT

    Often there are several ways of breaking the code to make the test fail. How to you choose the "right way"?

    By breaking the code in a single way, you only know that your refactoring of the test code didn't stop testing that single aspect. But it may now let other bugs pass by that where tested before. So do you also - after the refactoring - break the tested code in other ways to make sure you didn't weaken the test code in any other way?

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