Thinking and TDD
The cycle of TDD, once again in brief, is to write a small test, ensure it fails, get it to pass, review and clean up the design (including that of the tests), and ensure the tests all still pass. You repeat the cycle throughout the day, keeping it short to maximize the feedback it gives you. Though repetitive, it’s not mindless—at each point you have many things to think about. Thinking and TDD, contains a list of questions to answer at each small step.
To keep things moving, I’ll assume you’re following the steps of the cycle and remind you of them only occasionally. You may want to tack to your monitor a handy reminder card of the cycle.
For our next test, we tackle rule #2 (“replace consonants with digits after the first ...
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