elixir-lang/elixir — pull request #1970 by chrismcg (2013-12-29 22:24:16+00:00)
Title: Stop GenServer on unknown call/cast request

This references #1962.

No tests failed when I changed the behaviour.ex file. I'm new to Elixir / Erlang / OTP so unsure if the way I've gone about the tests is correct. The ones below unfortunately output too the error logger which dirties up the test output. I couldn't see a way around it but will happily change the tests if there's a better way.