Michael Hartl的Rails教程第8.1章Rspec错误

Question

首先，我感谢你们花时间审查我的问题。

我是一名铁路新手，正在通过Michael Hartl的Rails教程工作，我在运行Rspec时遇到以下错误消息。

1) Authentication with valid information 
     Failure/Error: click_button "Sign in"
     ActionView::MissingTemplate:
       Missing template sessions/create, application/create with {:locale=>[:en], :formats=>[:html], :handlers=>[:erb, :builder, :raw, :ruby, :jbuilder, :coffee]}. Searched in:
         * "/Users/Ladarris/rails_projects/sample_app/app/views"
     # ./spec/requests/authentication_pages_spec.rb:24:in `block (3 levels) in <top (required)>'

  2) Authentication with valid information 
     Failure/Error: click_button "Sign in"
     ActionView::MissingTemplate:
       Missing template sessions/create, application/create with {:locale=>[:en], :formats=>[:html], :handlers=>[:erb, :builder, :raw, :ruby, :jbuilder, :coffee]}. Searched in:
         * "/Users/Ladarris/rails_projects/sample_app/app/views"
     # ./spec/requests/authentication_pages_spec.rb:24:in `block (3 levels) in <top (required)>'

  3) Authentication with valid information 
     Failure/Error: click_button "Sign in"
     ActionView::MissingTemplate:
       Missing template sessions/create, application/create with {:locale=>[:en], :formats=>[:html], :handlers=>[:erb, :builder, :raw, :ruby, :jbuilder, :coffee]}. Searched in:
         * "/Users/Ladarris/rails_projects/sample_app/app/views"
     # ./spec/requests/authentication_pages_spec.rb:24:in `block (3 levels) in <top (required)>'

  4) Authentication with valid information 
     Failure/Error: click_button "Sign in"
     ActionView::MissingTemplate:
       Missing template sessions/create, application/create with {:locale=>[:en], :formats=>[:html], :handlers=>[:erb, :builder, :raw, :ruby, :jbuilder, :coffee]}. Searched in:
         * "/Users/Ladarris/rails_projects/sample_app/app/views"
     # ./spec/requests/authentication_pages_spec.rb:24:in `block (3 levels) in <top (required)>'

Finished in 0.71396 seconds
42 examples, 4 failures

我意识到错误消息意味着我遗漏了app/views/sessions/create.html.erb，但它应该按照教程的说明查看app/views/sessions/new.html.erb。

每当我继续创建app/views/sessions/create.html.erb时，都会返回以下错误消息。

故障：

1) Authentication with valid information 
     Failure/Error: it { should have_link('Profile',     href: user_path(user), visible: false) }
       expected #has_link?("Profile", {:href=>"/users/1", :visible=>false}) to return true, got false
     # ./spec/requests/authentication_pages_spec.rb:27:in `block (3 levels) in <top (required)>'

  2) Authentication with valid information 
     Failure/Error: it { should have_link('Sign out',    href: signout_path) }
       expected #has_link?("Sign out", {:href=>"/signout"}) to return true, got false
     # ./spec/requests/authentication_pages_spec.rb:28:in `block (3 levels) in <top (required)>'

  3) Authentication with valid information 
     Failure/Error: it { should have_title(user.name) }
       expected #has_title?("John Smith") to return true, got false
     # ./spec/requests/authentication_pages_spec.rb:26:in `block (3 levels) in <top (required)>'

以下是我的代码的副本。 _ __ _ __ _ __ _ __ _ __ _ < / EM> __ _

Rspec测试

require 'spec_helper'

describe "Authentication" do
  subject { page }
  describe "signin page" do
    before { visit signin_path }
    it { should have_content('Sign in') }
    it { should have_title('Sign in') }
  end
  describe "signin" do
      before { visit signin_path }
      describe "with invalid information" do
        before { click_button "Sign in" }
        it { should have_title('Sign in') }
        it { should have_selector('div.alert.alert-error', text: 'Invalid') }
      end
  end
   describe "with valid information" do
          let(:user) { FactoryGirl.create(:user) }
          before do
            visit signin_path
            fill_in "Email",    with: user.email.upcase
            fill_in "Password", with: user.password
            click_button "Sign in"
          end
          it { should have_title(user.name) }
          it { should have_link('Profile',     href: user_path(user), visible: false) }
          it { should have_link('Sign out',    href: signout_path) }
          it { should_not have_link('Sign in', href: signin_path) }
    end
end

会话控制器

class SessionsController < ApplicationController

  def new
  end

  def create
    user = User.find_by(email: params[:session][:email].downcase)
    if user && user.authenticate(params[:session][:password])

    else
      flash.now[:error] = 'Invalid email/password combination'
      render 'new'
    end
  end

  def destroy
  end
end

应用程序/视图/会话/ new.html.erb

<% provide(:title, "Sign in") %>
<h1>Sign in</h1>

<div class="row">
  <div class="span6 offset3">
    <%= form_for(:session, url: sessions_path) do |f| %>

      <%= f.label :email %>
      <%= f.text_field :email %>

      <%= f.label :password %>
      <%= f.password_field :password %>

      <%= f.submit "Sign in", class: "btn btn-large btn-primary" %>
    <% end %>

    <p>New user? <%= link_to "Sign up now!", signup_path %></p>
  </div>
</div>

的routes.rb

SampleApp::Application.routes.draw do
  resources :users 
  resources :sessions,      only: [:new, :create, :destroy]
  root to: 'static_pages#home'
  match '/signup',  to: 'users#new',            via: 'get'
  match '/signin',  to: 'sessions#new',         via: 'get'
  match '/signout', to: 'sessions#destroy',     via: 'delete'
  match '/help',    to: 'static_pages#help',    via: 'get'
  match '/about',   to: 'static_pages#about',   via: 'get'
  match '/contact', to: 'static_pages#contact', via: 'get'

  # The priority is based upon order of creation: first created -> highest priority.
  # See how all your routes lay out with "rake routes".

  # You can have the root of your site routed with "root"
  # root to: 'welcome#index'

  # Example of regular route:
  #   get 'products/:id' => 'catalog#view'

  # Example of named route that can be invoked with purchase_url(id: product.id)
  #   get 'products/:id/purchase' => 'catalog#purchase', as: :purchase

  # Example resource route (maps HTTP verbs to controller actions automatically):
  #   resources :products

  # Example resource route with options:
  #   resources :products do
  #     member do
  #       get 'short'
  #       post 'toggle'
  #     end
  #
  #     collection do
  #       get 'sold'
  #     end
  #   end

  # Example resource route with sub-resources:
  #   resources :products do
  #     resources :comments, :sales
  #     resource :seller
  #   end

  # Example resource route with more complex sub-resources:
  #   resources :products do
  #     resources :comments
  #     resources :sales do
  #       get 'recent', on: :collection
  #     end
  #   end

  # Example resource route within a namespace:
  #   namespace :admin do
  #     # Directs /admin/products/* to Admin::ProductsController
  #     # (app/controllers/admin/products_controller.rb)
  #     resources :products
  #   end
end

Answer 1

在new.html.erb中查找，但当它到达该视图中的f.submit时，会生成另一个请求并执行create方法你的会话控制器。但是，您没有if分支的任何代码（即，当用户存在时），因此它采取默认操作，尝试使用create的名称呈现视图。 / p>

如果仔细检查，我怀疑您是否发现您没有实现本教程要求您在教程中实现的一些代码。

Answer 2

确保控制器已满足if语句 - ＆GT; app / controller / users_controller.rb

def create
  @user = User.new(user_params)

  if @user.save
    redirect_to @user    #This statement is important
  else
    render 'new'
  end
end