Comment by ethin

I have the opposite experience. The library I develop depends significantly on external behavior, so point an AI at it and it will come up with tests like "test if a string is NULL" (even though I annotated it to be nonnull/a null-terminated string argument, but LLMs love ignoring my compiler annotations unless I tell them otherwise). So the "tests" end up being nonsensical ones like "test this range linear piecewise transformation; if you pass in x and round-trip it does it come back out as x?".