Let me come out and say - I think OP is wrong. When people write 500 line long functions the only way they are going to test it is, run with real input and see if it breaks.
Such testing is not only insufficient, but any regression that is added as a result of a change will go unnoticed too, until a real user hits that bug. You will notice how most people who are supporting long functions - don't even talk about how the heck they are going to test it.
Such testing is not only insufficient, but any regression that is added as a result of a change will go unnoticed too, until a real user hits that bug. You will notice how most people who are supporting long functions - don't even talk about how the heck they are going to test it.
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