When I TDD, I find code gets moved all the time, between classes and libraries. This is a good thing. Tweet of the day: Copy and Paste Bad, Cut and Paste Good.
Ctrl-C Ctrl-V :(
Ctrl-X Ctrl-V :)
N-Tier Architecture, C# Business Layer supplying the M to MVC, all in a day. That's what I call progress, and what János calls haladás.