Overheard

April 18, 2006

… in the development room:

TDD makes writing code super easy. All the hard thinking happens when you’re writing the tests and designing the API, and then it’s just red light / green light when you’re writing the implementation.

It seems that writing your tests first helps enforce the idea that you need to understand a problem before you can solve it. Particularly with large projects, building a comprehensive test harness is a fairly cheap way to explore architectural issues without committing to a particular implementation.

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