ruby-on-rails - flash[:notice]. should_not be_nil 在 rspec 中失败

Question

这是 Controller 的 rspec 代码:

it "should render edit if update was not saved" do
  item = Factory(:lease_item)
  session[:corp_head] = true
  post 'update', {:id => item.id, :name => 'nil'}
  flash[:notice].should_not be_nil
  response.should render 'edit'    
end

Controller 中的更新是:

  def update
    if (eng? && dept_head?) || corp_head? || ceo?
      @lease_item = LeaseItem.find(params[:id])
      @lease_item.input_by_id = session[:user_id]
      if @lease_item.update_attributes(params[:lease_item], :as => :roles_update)

        #redirect
        redirect_to URI.escape("/view_handler?index=0&msg=Lease item updated successfully")
      else
        #back to new
        render 'edit', :notice => "Item NOT updated"
      end
    else
      #back to previous page
      redirect_to URI.escape("/view_handler?index=0&msg=NO right to update lease item")
    end    
  end

这是来自 rspec 的错误代码:

  1) LeaseItemsController GET 'update' should render edit if update was not saved
     Failure/Error: flash[:notice].should_not be_nil
       expected: not nil
            got: nil

“项目未更新”预计会出现在 Flash 中。但是，为什么 flash[:notice] 没有任何内容？或者如何 rspec 有一 strip 有渲染“编辑”的消息，:notice => '项目未更新'

谢谢。

更新:

这是 Controller 的变化:

      ...........
      else
        #back to new
        flash[:notice] = "Item NOT updated"
        render 'edit'
      end
      .........

这是通过的 rspec 代码:

   it "should render edit if update was not saved" do
      item = Factory(:lease_item)
      session[:corp_head] = true
      post 'update', {:id => item.id, :lease_item => {:name => 'nil'}}
      flash.should_not be_nil
      response.should render_template(:action=> "edit")  
    end

如果使用 flash[:notice].should_not be_nil(或 .. flash.now[:notice]...)，则它不起作用。错误是 Got nil，与之前相同。此外 response.should render 'edit'(或 ... render :action => 'edit')也没有通过。错误是 NameError 或 NoMethodError。不知道为什么。

Answer 1

将您的其他更改为:

else
  #back to new
  flash[:notice] = "Item NOT updated"
  render 'edit'
end