This reminds me of the "Tracer Bullets" tip from The Pragmatic Programmer. The idea being that tests help you see where the code should go and how far off you a

This reminds me of the "Tracer Bullets" tip from The Pragmatic Programmer. The idea being that tests help you see where the code should go and how far off you are, so that you can aim a little better and try again. This is just tracer-bullet pricing.