| Tip 3 | Design with Tests |
 | [Brown Belt] You may not start designing new code right up front, but you will soon enough. |
Where our previous tip, Tip 2, Insist on Correctness, focused on making sure your code does what it’s supposed to do, here we focus on the meta-question, “What should this code do?”
On the surface, it would seem puzzling that a programmer would write code without knowing, well ahead of time, what it’s supposed to do. Yet we do it all the time. Faced with a problem, we charge off writing code and figure things out as we go. Programming is a creative act, not a mechanical one, and this process is akin to a painter charging off on ...
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