How does TDD compare with Functional Programming Languages like F# and Erlang?
I haven’t actually worked directly with a functional programming language yet, but from what I’ve seen of it, you have two sides of an equation and they have to balance like in algebra or accounting; this seems somewhat reminiscent of TDD where you define your expected outputs as Assert statements (one side of the equation) and the rest of the functionality goes into a class decoupled from the test (the other side of the equation), except that functional programming IMHO seems a bit cleaner.
Do the two actually have similarities, or am I just overthinking this a bit?
Software Design v Development Methodology
They’re orthogonal.
TDD is an approach to developing software which focuses on ensuring correctness by developing tests against specifications before the production code is written. Functional programming is a paradigm for designing and implementing software.