使用draper装饰器的rspec测试视图

Question

我尝试用Rspec测试我的视图.在我看来,我有一个由Draper生成的Decorator.这个装饰器由decent_exposure gem公开.

我创建了我的rspec测试:

require 'spec_helper'

describe "boats/show.html.slim" do

  let(:boat_decorate) { BoatDecorator.new(get_boat) }
  let(:search) { Search.new }

  before do
    view.stub(:boat_decorate) { boat_decorate }
    view.stub(:search) { search }
    render :template => 'boats/show.html.slim'
  end 

  it 'should see titlte' do
    rendered.should have_selector(:h1, :content => boat_decorate.title)
  end                                                                                                                                                                                
end

在我的助手存根中,我生成了Draper Decorator.在这个装饰器中,我有一个方法来调用一些帮助器link_to.

class BoatDecorator < ApplicationDecorator

  decorates :boat

  def region_link
    h.link_to region_name, '#', :title => region_name                                                                                                                                
  end

end

但如果我启动此测试,我有一个错误:

  1) boats/show.html.slim should see titlte
     Failure/Error: render :template => 'boats/show.html.slim'
     ActionView::Template::Error:
       undefined method `link_to' for nil:NilClass

我不希望我的装饰师发来所有帮助调用.那我该怎么办？

Answer 1

我们需要像装饰器规范一样添加设置: ApplicationController.new.set_current_view_context

require 'spec_helper'

describe "boats/show.html.slim" do

  let(:boat_decorate) { BoatDecorator.new(get_boat) }
  let(:search) { Search.new }

  before do
    ApplicationController.new.set_current_view_context
    view.stub(:boat_decorate) { boat_decorate }
    view.stub(:search) { search }
    render :template => 'boats/show.html.slim'
  end 

  it 'should see titlte' do
    rendered.should have_selector(:h1, :content => boat_decorate.title)
  end                                                                                                                                                                                
end