ExCoveralls – coveralls.io for Elixir (elixir-lang)
This uses Erlang’s cover library, and it works mostly well on Elixir. It can return the module definition (Elixir.XXX) and source code (*.ex) relationship along with test-coverage by combining with “mix test”. I haven’t been able to fully understand how this translation is working, but it would be one good indicator that Elixir is well wrapped around Erlang’s concept at very low-level. It’s pretty much interesting that it’s achievable by changing the language representation like Ruby, from the Erlang’s a little tricky grammer.
Still there’s a lot to learn, but this kind of writing is a nice workout for getting closer, I hope.