[ashr]

Note: This response is about software TDD and not some high level TDD

If you don't know the problem then you are just winging it. Writing software is always with a goal (can it be without?) and thus you should be able to write a test (first) that will tell you if it does what you expect. If you expect it to record click stream, then it records click stream or whatever.

When I was new to TDD, I too found it to be very cumbersome. It took me some time to realize that I don't have to figure out the entire design before I write any test code. I can start with a test, then write the functionality that it is testing and when I realize that this is not what I want but something else then I change my test to test that new thing. Iterate. That is what agile is about.

Discovery that you want something else, happens whether or not you are doing TDD.