Error Devise with RSpec and Rails 3

conta_pagars_controller_spec.rb

require 'spec_helper'

describe ContaPagarsController do
  render_views
  login_user
  
  it "should have a current_user" do
      subject.current_user.should_not be_nil
  end

  it "should get index" do
    get 'index'
    response.should be_success
  end
  
  describe "POST 'create'" do
    it "creates link"
    it "saves link"
    it "redirects to link overview"
    it "displays message"
  end
  
end

controller_macros.rb

module ControllerMacros
  def login_user
    before(:each) do
      require 'pry'
      binding.pry
      @request.env["devise.mapping"] = Devise.mappings[:user]
      user = FactoryGirl.create(:user)
      user.confirm!
      sign_in user
    end
  end
end

Error_Terminal

.../spec/spec_helper.rb:27:in `block (2 levels) in <top (required)>': uninitialized constant ControllerMacros (NameError)

spec_helper.rb

  RSpec.configure do |config|
    config.use_transactional_fixtures = false
    config.mock_with :rspec
    config.color_enabled = true
    config.formatter = 'documentation'
    config.include Devise::TestHelpers, :type => :controller
    config.extend ControllerMacros, :type => :controller
  end

config.include Devise::TestHelpers, :type => :controller
config.extend ControllerMacros, :type => :controller

it's should not be in spec_helper file. Right place for it, is devise.rb in spec/support folder

i add require 'support/controller_macros' on top of spec/rails_helper.rb