This is what the parent said: > You write a tiny bit of test, then a tiny bit of implementation to satisfy the test. If you notice something you'd missed previ

This is what the parent said: > You write a tiny bit of test, then a tiny bit of implementation to satisfy the test. If you notice something you'd missed previously, you refactor BOTH tests and implementation. That's TDD. He was alluding to the fact that people might assume that they have to write all the tests first.