> If you're doing TDD exclusively with unit tests I find it falls flat for pretty much everything except complex, logical code with no state and simple inputs a

> If you're doing TDD exclusively with unit tests I find it falls flat for pretty much everything except complex, logical code with no state and simple inputs and outputs. This is absolutely true. And it’s not a coincidence I embraced TDD at the same time I was learning FP. And I continue to generally prefer both TDD and a FP style no matter what stack I’m working in.