Yeah, i've found that my heavily unit tested code is often my best code, simply because designing it with that in mind yields the simplest, smallest units. If I

Yeah, i've found that my heavily unit tested code is often my best code, simply because designing it with that in mind yields the simplest, smallest units. If I know I'm gonna need to write a unit test later, I'm much more inclined to split a long function out into more sensible small ones, and I'm not going to try to combine two different behaviors (because that's hell to test).