TDD is about building thing that do something! It isn't just documenting your code. It should provide some useful feature. Like preventing errors where several people have their hands in the code. Or even provide a pop-up, UI tutorial on how the API under your application works. And possibly even generate some type of state (a database, config, or .json files) that customizes how your application will work. Otherwise, it is just boiler plate code no one will read.
I also hate the unit-test-only attitude some have. To test your application for reasons of code coverage alone is stupid. Same as: look how many lines of code I wrote today!
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