When NOT to use it ?

• You don't really want to try this methodology
  • You will eventually cheat and lose the benefits while keeping some of the drawbacks
• You don't know what you want to achieve
• Your tests :
  • ran very slowly
    • maybe a subset of the tests can be run to accelerate
  • are flaky
  • are not self-validating
• You want to use double-loop TDD
  • unless you don't run tests on bigger loops when you run smaller loops