Ruby on rails 测试控制器。Rspec

我想测试控制器的评论，创建动作，但我不知道怎么做。 评论\u控制器

class CommentsController < ApplicationController
  def create
    @hotel = Hotel.find(params[:hotel_id])
    @comment = @hotel.comments.new(comment_params)
    @comment.user_id = current_user.id
    @comment.save
    redirect_to @hotel
end

private
  def comment_params
    params.require(:comment).permit(:user_id, :body, :hotel_id)
  end
end

评论\u控制器\u规范rb

  resources :hotels do
    resources :comments
    get 'list', on: :collection
    post 'comment'
  end

require 'rails_helper'

describe CommentsController do
  login_user
  describe 'POST create' do

    it 'create a new comment with valid attributes' do
      expect{
        comment_attr = attributes_for(:comment)
        post :create, comment: comment_attr
      }.to change(Comment,:count).by(1)
    end

    it 'redirects to the new comment' do
      comment_attr = attributes_for(:comment)
      post :create, comment: comment_attr
      expect(response).to redirect_to hotels_path(hotel)
    end

  end

end

FactoryGirl.define do
  factory :user do |user|
    user.email { Faker::Internet.email }
    user.password 'password'
    user.password_confirmation 'password'
  end

  factory :hotel do |hotel|
    hotel.title 'Hotel'
    hotel.description 'This is a some description for hotel'
    hotel.breakfast true
    hotel.price 20500
    hotel.address { create(:address) }
    hotel.user { create(:user) }
    hotel.avatar { fixture_file_upload(Rails.root + 'spec/fixtures/images/example.jpg', "image/jpg") }
  end

  factory :comment do |comment|
    comment.body 'This is a some comment ^_^'
    comment.user { create(:user) }
    comment.hotel { create(:hotel) }
  end

  factory :address do |address|
    address.country { Faker::Address.country }
    address.state { Faker::Address.state }
    address.city { Faker::Address.city }
    address.street { Faker::Address.street_name }
  end
end

工厂。rb

  resources :hotels do
    resources :comments
    get 'list', on: :collection
    post 'comment'
  end

require 'rails_helper'

describe CommentsController do
  login_user
  describe 'POST create' do

    it 'create a new comment with valid attributes' do
      expect{
        comment_attr = attributes_for(:comment)
        post :create, comment: comment_attr
      }.to change(Comment,:count).by(1)
    end

    it 'redirects to the new comment' do
      comment_attr = attributes_for(:comment)
      post :create, comment: comment_attr
      expect(response).to redirect_to hotels_path(hotel)
    end

  end

end

FactoryGirl.define do
  factory :user do |user|
    user.email { Faker::Internet.email }
    user.password 'password'
    user.password_confirmation 'password'
  end

  factory :hotel do |hotel|
    hotel.title 'Hotel'
    hotel.description 'This is a some description for hotel'
    hotel.breakfast true
    hotel.price 20500
    hotel.address { create(:address) }
    hotel.user { create(:user) }
    hotel.avatar { fixture_file_upload(Rails.root + 'spec/fixtures/images/example.jpg', "image/jpg") }
  end

  factory :comment do |comment|
    comment.body 'This is a some comment ^_^'
    comment.user { create(:user) }
    comment.hotel { create(:hotel) }
  end

  factory :address do |address|
    address.country { Faker::Address.country }
    address.state { Faker::Address.state }
    address.city { Faker::Address.city }
    address.street { Faker::Address.street_name }
  end
end

但我有一个错误：

1） CommentsController后期创建使用有效的 属性 失败/错误：帖子：创建，注释：注释\u属性 ActionController:：UrlGenerationError: 没有路由匹配{:comment=>{:body=>“这是一个注释^ ^”，：user=>“5”，：hotel=>“1”}，：controller=>“comments”， ：action=>“create”} #./spec/controllers/comments\u controller\u spec.rb:10:in

block（4级）in'
#./spec/controllers/comments\u controller\u spec.rb:8:in

块（3级）in'

2） CommentsController创建后重定向到新注释 失败/错误：帖子：创建，注释：注释\u属性 ActionController:：UrlGenerationError: 没有路由匹配{:comment=>{:body=>“这是一个注释^ ^”，：user=>“5”，：hotel=>“1”}，：controller=>“comments”， ：action=>“create”} #./spec/controllers/comments\u controller\u spec.rb:16:in'block（3层）in'

---

我认为您的主要问题是，您将已创建的对象发送到操作

post :create, comment: Comment.create(comment_attr)

Rails解析参数并获取记录的

id

，并尝试查找

成员

路由。 看起来您想测试是否将从控制器中的参数创建新注释。而且它是嵌套资源，所以您也应该发送

酒店id

设法发送

it 'creates a new comment with valid attributes' do
  comment_attr = attributes_for(:comment)
  hotel = Hotel.last || create(:hotel)

  expect{
    post :create, comment: comment_attr, hotel_id: hotel.id
  }.to change(Comment,:count).by(1)
end

---

另一件让我困惑的事情是线路

post'comment'，only:：create

。我从来没有见过选项

仅
用于
post
-通常用于资源。
谢谢，我做了这个
post-create，comment:comment\u attr
，但这并不能解决我的问题。错误是一样的吗？您是否尝试更改路线（我的意思是仅删除post的
选项
）？请参阅答案中的更新。您应该发送
hotel\u id
，因为您的资源是嵌套的