It doesn't matter what your code is doing inside that component, you can still make it easily testable by having the core translation pipeline as pure functions

It doesn't matter what your code is doing inside that component, you can still make it easily testable by having the core translation pipeline as pure functions. See https://news.ycombinator.com/item?id=27031847 https://news.ycombinator.com/item?id=27031847 for more reasons.