RSpec，設計 - 找不到有效的映射錯誤

Question

我有一個設計用戶模型，在我的應用程序中我有不同的角色，我通過我的用戶模型中的枚舉指定。當我運行管理員角色的測試時，在使用Devise運行RSpec測試時，我收到以下錯誤。我嘗試了類似問題的其他答案，但似乎沒有任何工作。我希望你能指出我正確的方向。謝謝！

RuntimeError: 
    Could not find a valid mapping for {:email=>"collin_cain@torpdoyle.info", :password=>"12345678", :password_confirmation=>"12345678", :role=>2} 

這裏是用戶模型：

class User < ActiveRecord::Base 
    # Include default devise modules. Others available are: 
    # :confirmable, :lockable, :timeoutable and :omniauthable 
    devise :database_authenticatable, :registerable, 
     :recoverable, :rememberable, :trackable, :validatable 

    has_many :comments 

    enum role: [:member, :moderator, :admin] 

    before_save :set_default_role 

    def set_default_role 
    self.role ||= 0 
    end 
end 

用戶工廠：

FactoryGirl.define do 
    factory :user do 
    email { Faker::Internet.email } 
    password "12345678" 
    password_confirmation "12345678" 
    role 0 
    end 
end 

類別控制器規格

require 'rails_helper' 

RSpec.describe Admin::CategoriesController, type: :controller do 

    it 'should redirect to sign in path for non signed users' do 
     get :index 
     expect(response).to redirect_to(new_user_session_path) 
    end 

    it 'should redirect to root path for non admin users' do 
     user = create(:user) 
     sign_in user 
     get :index 
     expect(response).to redirect_to(root_path) 
    end 

    describe 'GET #index' do 
     context 'when admin signed in' do 
      it 'renders the index template' do 
       admin = attributes_for(:user, role: 2) 
       sign_in admin 
       get :index 
       expect(response).to render_template(:index) 
      end 

      it 'assigns a list of categories' do 
       admin = attributes_for(:user, role: 2) 
       sign_in admin 
       category = create(:category) 
       expect(assigns(:categories)).to eq([category]) 
      end 
     end 
    end 
end 

和路由文件

Rails.application.routes.draw do 
    devise_for :users 

    namespace :admin do 
    get '', to: 'dashboard#index', as: '/' 

    resources :categories 
    end 

    resources :topics do 
    resources :comments, only: :create 
    end 

    resources :categories do 
    resources :topics 
    end 

    root 'categories#index' 
end 

我也加入了用戶模式

create_table "users", force: :cascade do |t| 
    t.string "email",     default: "", null: false 
    t.string "encrypted_password",  default: "", null: false 
    t.string "reset_password_token" 
    t.datetime "reset_password_sent_at" 
    t.datetime "remember_created_at" 
    t.integer "sign_in_count",   default: 0, null: false 
    t.datetime "current_sign_in_at" 
    t.datetime "last_sign_in_at" 
    t.inet  "current_sign_in_ip" 
    t.inet  "last_sign_in_ip" 
    t.datetime "created_at",       null: false 
    t.datetime "updated_at",       null: false 
    t.integer "role" 
    t.string "image" 
    end 

UPDATE：

我已經更新了管理類控制器規範，從sign_in用戶sign_in（特別設計的sign_in方法：管理員，用戶），如下所示。

describe 'GET #index' do 
     context 'when admin signed in' do 
      it 'renders the index template' do 
       user = create(:user) 
       user.role = 2 
       sign_in(:admin, user) 
       get :index 
       expect(response).to render_template(:index) 
      end 
... 

現在我收到以下錯誤

1) Admin::CategoriesController GET #index when admin signed in renders the index template 
    Failure/Error: expect(response).to render_template(:index) 
     expecting <"index"> but was a redirect to <http://test.host/users/sign_in> 

出於某種原因，管理員沒有被登錄，我已經包含在rails_helper.rb文件制定測試助手，不幸的是，錯誤繼續。任何幫助將不勝感激。

Answer 1

我能解決自己的問題，並決定發佈答案，希望它會幫助未來的人。

不是在admin_categories_controller_spec文件中將用戶角色設置爲admin，而是在用戶工廠中添加了嵌套Factory。

FactoryGirl.define do 
    factory :user do 
    email { Faker::Internet.email } 
    password "12345678" 
    password_confirmation "12345678" 
    role 0 

    factory :admin do 
     role 2 
    end 
    end 
end 

和測試結束這樣的：

describe 'GET #index' do 
     context 'when admin signed in' do 
      it 'renders the index template' do 
       admin = create(:admin) 
       sign_in admin 
       get :index 
       expect(response).to render_template(:index) 
      end 

      it 'assigns a list of categories' do 
       admin = create(:admin) 
       sign_in admin 
       category = create(:category) 
       get :index 
       expect(assigns(:categories)).to eq([category]) 
      end 
     end 
    end 

Answer 2

你有沒有聲明如下

t.integer :role 

在遷移中的作用。這將需要在那裏被列入移民創建的結構。

如果沒有

添加行，在你的數據庫中刪除該表並再次運行耙