Shared Examples

shared_examples.rb

module CoolMixin
  # Cool functionality
end

class Base
end

class CoolCat < Base
  include CoolMixin
end

class CoolCats < Base
  extend CoolMixin
end

shared_examples_for "cool things" do
  # This is where you are testing the CoolMixin
end

describe CoolCat do
  it_should_behave_like "cools things"
end

describe CoolCats do
  subject { CoolCats }

  it_should_behave_like "cool things"
end