Needing tests != TDD. Needing tests != Unit Tests. Adding larger system tests after the fact is perfectly reasonable. TDD wants you to write tiny tests for ev

Needing tests != TDD. Needing tests != Unit Tests. Adding larger system tests after the fact is perfectly reasonable. TDD wants you to write tiny tests for every square millimeter of functionality. It's just not worth it, and 99% of the value is to make up for shortcomings in dynamic languages.