protected

  def find_scenario(id = params[:id])
    @scenario = current_user.scenarios.find_by_id(id)
  end

  def update
    @scenario = find_scenario
    if @scenario.update_attributes(params[:scenario])
      flash[:notice] = 'Scenario updated successfully...'
    else
      flash[:error] = 'There was a problem updating the scenario...'
    end

    redirect_to(room_scenario_path(current_room, @scenario))
  end

 
  before do
    @scenario = mock_model(Scenario)
    controller.stub!(:find_scenario).and_return(@scenario)
  end

  it "finds a scenario" do
    get :update, :Id => 1
    response.should be_redirect
  end

  it "shows the correct message if updating the scenario failed" do
    @scenario.should_receive(:update_attributes).and_return(false)
    flash[:message].should =~ /problem/
    get :update, :id => 1
  end

...