I read your article and had a look at the test framework. For data-driven unit tests I can see this go a long way.

By the way, I have been doing TDD in a statically typed language for a while now and it is quite acceptable to me, I must say. There is just a short while in which it doesn’t compile. And you cannot use IntelliSense. But that’s a very short time. Of course, SmallTalk is ideally suited for TDD, but most of the pro’s translate to other languages as well.

“Beware of bugs in the above code; I have only proved it correct, not tried it.”