gistfile1.rb

require 'spec/spec_helper'

describe AuthenticatedSystem do

  class TestClass < ApplicationController
    include AuthenticatedSystem
    def initialize(user)
      @user = user
    end
    def session
      { :user => @user.id }
    end
  end

  describe '#logged_in?' do 

    describe 'user id is in the session' do 

      it 'returns true if user is in the database' do 
        user = users :joe
        User.stubs(:find_by_id).returns(user)
        @auth_system = TestClass.new(user)
        @auth_system.send(:logged_in?).should be_true
      end

    end
    
  end

end