Eyeballing a log is often enough to convince myself that some code is probably correct. It’s not as thorough as a unit test, but better than nothing if you were

Eyeballing a log is often enough to convince myself that some code is probably correct. It’s not as thorough as a unit test, but better than nothing if you weren’t planning on writing a test anyway. This can also be a great way to write your unit tests. Once you like what your code does in some situation, you can copy paste the input and expected output into a unit test to make sure you don’t break that correct behaviour later.