CodeCoverage Tutorial

Hi there I am using Rubymine and wanna get the codecoverage feature working.

I have read the documentation but was not very helpful.

Can someone provide a "step-by-step" guide for code coverage?

I am using a mac and the gem file has "gem 'simplecov' implemented.

I always get 0% file, 0% lines covered. But I have rspec tests


Many thanks