require 'spec_helper' class MyController include Controll::Enabler # Mocking! def render path path end alias_method :redirect_to, :render end describe Controll::Enabler do subject { controller.new } let(:controller) { MyController } context 'instance' do describe 'do_redirect' do specify do expect { subject.do_redirect }.to raise_error(ArgumentError) end end describe 'do_render' do specify do expect { subject.do_render }.to raise_error(ArgumentError) end end end end