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Never happens again? You already have the 3-alarm fire, its too late. That's my point exactly. You catch only what you can think of and write tests to cover.

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I'm not sure how TDD makes this worse. Unless you think that it absolves you of any end-to-end QA testing. In which case, welcome to the fire.

I object to the TDD fundamental precept that you code to the tests. That narrows the 'testing' until its a self-fulfilling prophecy that you will have 'fewer bugs', since you defined the bugs as 'what we're looking for'.

Reminds me of the old joke "A: I'm looking for my wallet. B: where did you lose it? A: over there. B: then why look here? A: the light's better"

You're repeating your false idea that bugs in TDD come only from the unit tests. Eh, see comments above.

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