[racket] Top-down design, wish-lists, and testing

On Nov 21, 2010, at 10:53 PM, Don Blaheta wrote:

> 2) I can write a description, signature, stub, and test cases for the
> helper function, and only then set it aside to add another item to the
> wish list or finish writing the original function.


This is what I personally do and what I had intended to bring across in HtDP/2e. 

BUT, I really like your proposals A and B. Let's see how we can get this going. 

-- Matthias