Ruby on Rails 4:使用rspec测试嵌套资源无效。

5
我有一些关于测试我的Ruby on Rails应用程序的困难。我有一个资源餐厅和一个嵌套的菜单资源。
路由文件:
resources :restaurants do
  resources :menus

菜单模型:
class Menu
include Mongoid::Document

belongs_to :restaurant
accepts_nested_attributes_for :restaurant

validates :name, presence: true
validates :description, presence: true
validates :restaurant, presence: true

field :name, type: String
field :description, type: String
end

餐厅模型:

class Restaurant
include Mongoid::Document

has_one :address, dependent: :destroy
has_many :menus, dependent: :destroy
accepts_nested_attributes_for :address, :menus

validates :name, presence: true
validates :description, presence: true
validates :address, presence: true

field :name, type: String
field :description, type: String
field :thumbnail, type: String
field :banner, type: String
end

然后,我正在尝试这样做。这是rspec的默认测试,但由于我有嵌套的资源,所以我正在尝试进行修改。
describe MenusController do

before :each do
@restaurant = FactoryGirl.create(:random_restaurant)
@menu = FactoryGirl.create(:menu)
end

describe 'GET index' do
it 'assigns all menus as @menus' do
  get restaurant_menus_path(@restaurant)
  assigns(:menus).should eq([menu])
end
end

describe 'GET all restaurants menus' do
it 'responds with 200' do
  get :index, { :id => @restaurant  }
  expect(response).to be_success
  expect(response.status).to eq(200)
  end
end

但错误是:
  1) MenusController GET index assigns all menus as @menus
 Failure/Error: get restaurant_menus_path(@restaurant)
 ActionController::UrlGenerationError:
   No route matches {:controller=>"menus", :action=>"/en/restaurants/52a20e4c6561721131010000/menus"}
 # ./spec/controllers/menus_controller_spec.rb:30:in `block (3 levels) in <top (required)>'

 2) MenusController GET all restaurants menus responds with 200
 Failure/Error: get :index, { :id => @restaurant  }
 ActionController::UrlGenerationError:
   No route matches {:action=>"index", :id=>"52a20e4c6561721131060000", :controller=>"menus"}
 # ./spec/controllers/menus_controller_spec.rb:37:in `block (3 levels) in <top (required)>'

这是路线:
restaurant_menus_path    GET     (/:locale)/restaurants/:restaurant_id/menus(.:format)   menus#index
POST     (/:locale)/restaurants/:restaurant_id/menus(.:format)   menus#create
new_restaurant_menu_path     GET     (/:locale)/restaurants/:restaurant_id/menus/new(.:format)   menus#new
edit_restaurant_menu_path    GET     (/:locale)/restaurants/:restaurant_id/menus/:id/edit(.:format)  menus#edit
restaurant_menu_path     GET     (/:locale)/restaurants/:restaurant_id/menus/:id(.:format)   menus#show
PATCH    (/:locale)/restaurants/:restaurant_id/menus/:id(.:format)   menus#update
PUT  (/:locale)/restaurants/:restaurant_id/menus/:id(.:format)   menus#update
DELETE   (/:locale)/restaurants/:restaurant_id/menus/:id(.:format)   menus#destroy

有趣的是,menu_spec.rb 中的这个测试正常运行。
require 'spec_helper'

describe 'Menu' do
  before :each do
    @restaurant = FactoryGirl.create(:random_restaurant)
    @menu = FactoryGirl.create(:menu)
  end

  describe 'GET /menus' do
    it 'responds with 200' do
      get restaurant_menu_path(@restaurant, @menu)
      expect(response).to be_success
      expect(response.status).to eq(200)
    end
  end

  describe 'GET all restaurants menus' do
    it 'responds with 200' do
      get restaurant_menus_path(@restaurant)
      expect(response).to be_success
      expect(response.status).to eq(200)
    end
  end
end

我真的不知道为什么这个测试不起作用。。:(
请...我需要一些解释...如果有人可以帮忙...欢迎提供阅读资源 :)
非常感谢你。
2个回答

7

好的,我明白了,测试应该像这样:

 it 'renders the index template' do
  get :index, { :restaurant_id => @restaurant  }
  expect(response).to render_template('index')
end

我不得不添加 :restaurant_id.. 然后它就可以工作了。

你能指出控制器的问题吗?我遇到了类似的问题,但是我得到了#<Mongoid::Criteria>。不知道为什么!另外,在你的before块中,你是如何创建两个不同的实例的,你在哪里声明这两个实例是相关联的? - Pablo Olmos de Aguilera C.
抱歉,我度假了。我在模型中声明了它。菜单模型有类似这样的内容: accepts_nested_attributes_for:restaurant而我的餐厅模型是这样的: accepts_nested_attributes_for:menus - damir
谢谢。我解决了。我不记得问题是什么,但我相信它与“子”资源(在工厂中)必须存在的关联有关,否则它们将被视为“未关联”的资源。 - Pablo Olmos de Aguilera C.

1
在测试中,当我执行get restaurant_menus_path(@restaurant)时,会出现以下错误:type:controller
ActionController::UrlGenerationError:
   No route matches {:action=>"/restaurant/1/menus", :controller=>"restaurants"}

在测试类型控制器中,获取方法的第一个参数不是控制器中的动作:
所以它与以下内容一起使用:
get :index, { :restaurant_id => @restaurant  }

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