controller_test.rb

describe ProgramsController do
  let(:programs) { [mock_model(Program)] }    

  describe "GET index" do
    it { should paginate(Program).with_default_per_page(30) }

    describe "after pagination" do
      before(:each) do
        Program.stub(:paginate).and_return(programs)    
        get :index
      end

      it { should assign_to(:programs).with(programs) }
      it { should respond_with(:success) }
      it { should render_template(:index) }
      it { should_not set_the_flash } 
    end
  end
end