Rewriting your test suite in Clojure in 24 hours (blog.circleci.com)

For me, this is the essential bit: clojure.test is simpler and less magical. You can read the clojure.test source code and understand it in an hour or so - the trickiest bit is the extension system (e.g. throws?). Midje has a lot of really dark macro magic and the code is... complex.