gistfile1.rb

class MyController < ApplicationController
  def redirect_to_home
    true
  end
end


my test 

describe MyController do 
  describe "some behavior" do 
    context "redirect_to_home" do
      before(:each) do 
        post :create, user: @hash
        login_and_activate :user
      end
      
      it "should call redirect_to_home" do
        controller.should_receive(:redirect_to_home)
        get :new
      end
    end
  end
end



Failures:

  1) MyController some behavior should call redirect_to_home"
     Failure/Error: controller.should_receive(:redirect_to_home)
       (#<MyController:0x007f815b342478>).redirect_to_home(any args)
           expected: 1 time
           received: 0 times
     # ./spec/controllers/users_controller_spec.rb:83:in `block (5 levels) in <top (required)>'

Finished in 9.11 seconds