This is a less dramatic change than swapping out the framework since we are still using rails, but a couple years ago my employer switched from using rails cont

This is a less dramatic change than swapping out the framework since we are still using rails, but a couple years ago my employer switched from using rails controllers to using https://github.com/gocardless/coach https://github.com/gocardless/coach and it is noticeably easier to write good tests.