Ruby Rspec验证测试在'；把'；更新

我有这个工厂：

@host=FactoryGirl.create（：host）

   1) HostsController POST update failure should redirect to edit
         Failure/Error: response.should redirect_to(edit_host_path(@host))
           Expected response to be a redirect to <http://test.host/hosts/1/edit> but was a redirect to <http://test.host/hosts/1>
         # ./spec/controllers/hosts_controller_spec.rb:127:in `block (4 levels) in <top (required)>'

此测试通过：

it 'should update and redirect to the show page' do                                  
  new_attr = @host.attributes.merge("hostname" => "New_name")             
  put 'update', id: @host, host: new_attr              
  response.should redirect_to(host_path(@host))                           
end¬   

   1) HostsController POST update failure should redirect to edit
         Failure/Error: response.should redirect_to(edit_host_path(@host))
           Expected response to be a redirect to <http://test.host/hosts/1/edit> but was a redirect to <http://test.host/hosts/1>
         # ./spec/controllers/hosts_controller_spec.rb:127:in `block (4 levels) in <top (required)>'

但这一次失败了：

  it 'should fail on validation for empty hostname and redirect to edit' do                                           
    bad_attr = @host.attributes.merge("hostname" => "")                     
    put 'update', id: @host, host: bad_attr                                 
    response.should redirect_to(edit_host_path(@host))                
  end 

   1) HostsController POST update failure should redirect to edit
         Failure/Error: response.should redirect_to(edit_host_path(@host))
           Expected response to be a redirect to <http://test.host/hosts/1/edit> but was a redirect to <http://test.host/hosts/1>
         # ./spec/controllers/hosts_controller_spec.rb:127:in `block (4 levels) in <top (required)>'

出现此错误时：

   1) HostsController POST update failure should redirect to edit
         Failure/Error: response.should redirect_to(edit_host_path(@host))
           Expected response to be a redirect to <http://test.host/hosts/1/edit> but was a redirect to <http://test.host/hosts/1>
         # ./spec/controllers/hosts_controller_spec.rb:127:in `block (4 levels) in <top (required)>'

我在控制台中进行了保存和更新属性的操作，验证工作正常。那么为什么会出现这种错误呢？有什么想法吗？Rspec似乎在说我的工厂对象的属性不好，但我的模型验证得很好。谢谢你。

/p>/me做掌纹

   1) HostsController POST update failure should redirect to edit
         Failure/Error: response.should redirect_to(edit_host_path(@host))
           Expected response to be a redirect to <http://test.host/hosts/1/edit> but was a redirect to <http://test.host/hosts/1>
         # ./spec/controllers/hosts_controller_spec.rb:127:in `block (4 levels) in <top (required)>'

在HostsController#update中，此：

   1) HostsController POST update failure should redirect to edit
         Failure/Error: response.should redirect_to(edit_host_path(@host))
           Expected response to be a redirect to <http://test.host/hosts/1/edit> but was a redirect to <http://test.host/hosts/1>
         # ./spec/controllers/hosts_controller_spec.rb:127:in `block (4 levels) in <top (required)>'

@host = Host.find(params[:id])
@host.save

应该是这样的：

   1) HostsController POST update failure should redirect to edit
         Failure/Error: response.should redirect_to(edit_host_path(@host))
           Expected response to be a redirect to <http://test.host/hosts/1/edit> but was a redirect to <http://test.host/hosts/1>
         # ./spec/controllers/hosts_controller_spec.rb:127:in `block (4 levels) in <top (required)>'

@host = Host.find(params[:id])
@host.update_attributes(params[:host])

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你能发布你的相关控制器代码吗？