The Limber Lambda

Recently someone raised what appears to be a contentious issue, that is, is it acceptable to “design for test”.  Personally, initially a proponent of the “don’t-prop-your-code-up-for-the-sake-of-tests” department, I am becoming more inclined to agree with the author of said posting.  Being able to completely isolate an object for the purposes of testing is a beautiful thing, but sadly it sometimes requires a whole lot of P.T. in the form of dependency injection frameworks and the like–we’re currently feeling this pain on a big project we’re working on.