未定义的方法“ has_selector？”用于rspec装饰器 [英] undefined method 'has_selector?' for rspec decorators

问题描述

我有以下rspec测试：

 ＃spec / decorators / user_decorator_spec.rb 
需要File.expand_path 'spec / spec_helper'
 
描述UserDecorator做
 let（：user）{UserDecorator.new build（：user，level：build（：level））} 
 subject {user } 
 
 its（：avatar）{应该具有_selector'h6'} 
结尾
  

而我得到错误：

 失败/错误：its（：avatar）{应该具有_selector'h6'} 
 NoMethodError：
未定义的方法 has_selector？，用于＃< ActiveSupport :: SafeBuffer：0x007fecbb2de650> 
＃./spec/decorators/user_decorator_spec.rb:7:in在< top（必填）>'
   
 
 
在{ApplicationController.new之前，我尝试了以下流行建议：
  .set_current_view_context} 
  
但随后会显示未定义的方法set_current_view_context 。我正在使用 rspec 2.14.1 和水豚2.0.1 。另外，最奇怪的是-当我在某个帮助程序规范中编写此测试时，它通过了，没有问题... 
 
 
 
 Help ... 
解决方案
对于使用此线程中提出的 type :: view 解决方案，我感到不满意，尽管这是非常有效的问题是，我在 lib / 目录中的文件的规范文件实际上不应被视为视图规范。
 
 
 
所以我在互联网上做了一些进一步的研究，发现对我来说似乎是一种更好的方法。
 
 
 
因此，请考虑该线程中的原始示例。您只需在describe块内添加以下行：
  include Webrat :: Matchers 
  
所以最后一个例子如下：
 ＃spec / decorators / user_decorator_spec.rb 
 require File.expand_path'spec / spec_helper'
 
描述UserDecorator do 
 include Webrat :: Matchers 
 
 let（：user）{UserDecorator.new build（：user，level：build（：level））} 
主题{user} 
 
 its（：avatar）{应该具有h_selector'h6 '} 
结束
  
 
I have the following rspec test:
# spec/decorators/user_decorator_spec.rb    
require File.expand_path 'spec/spec_helper'

describe UserDecorator do
  let(:user) { UserDecorator.new build(:user, level: build(:level)) }
  subject { user }

  its(:avatar) { should have_selector 'h6' }
end
and I get error:
Failure/Error: its(:avatar) { should have_selector 'h6' }
     NoMethodError:
       undefined method `has_selector?' for #<ActiveSupport::SafeBuffer:0x007fecbb2de650>
     # ./spec/decorators/user_decorator_spec.rb:7:in `block (2 levels) in <top (required)>'
I have tried the popular suggestion with:
before { ApplicationController.new.set_current_view_context }
but then it says undefined method set_current_view_context. I'm using rspec 2.14.1 and capybara 2.0.1. Also, the strangest thing - when I wrote this test in some helper spec it passed, no problems...

Help...
解决方案
I didn't feel very satisfied about using the type: :view solution proposed in this thread, despite it's a very valid one. The thing is that my spec file for a file inside lib/ directory shouldn't be actually considered as a view spec.

So I did some further research over the internet and found out one that seems a better approach to me.

So considering the original example in this thread. You should just add the following line inside your describe block:
include Webrat::Matchers
So the final example would look like:
# spec/decorators/user_decorator_spec.rb    
require File.expand_path 'spec/spec_helper'

describe UserDecorator do
  include Webrat::Matchers

  let(:user) { UserDecorator.new build(:user, level: build(:level)) }
  subject { user }

  its(:avatar) { should have_selector 'h6' }
end


                        
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