[Haskell-cafe] Haskell and the Software design process

[Bradford Larsen]

On Sun, May 2, 2010 at 4:10 PM, Don Stewart <dons at galois.com> wrote:
> I don't believe anyone has written a "Programming Haskell in the Large"
> book (or any other similar functional language??), but there is lots of
> experience in this community working on big, long lived code bases.
>
> Some key points:
[...]
>    * picking a good data type (like a zipper) will make hundreds of
>          unit tests meaningless -- improving productivity.

Don,

What sort of tests were you thinking of that a zipper would render
pointless?  Could you elaborate?

Thanks,
Brad