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Re:Kent Beck: “I get paid for code that works, not for tests... by gr3yh47 on Thursday December 08, 2016 @10:02AM (#13130661)
> yes but if you follow that too strongly you end up having to rework tests _every_ time you change something which is absurd.

it depends how brittle your tests are. You can write tests that make sure internal stuff works at a unit level without them being so brittle

to your point testing I/O or behavior is the way to accomplish this, but it can still be done at the level of internal functions/methods

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