Michael Hartl的Rails教程第8.1章Rspec错误

Question

首先我非常感谢大家花时间回顾我的问题。

我是一名通过Michael Hartl的Rails Tutorial学习的导轨菜鸟，我在运行我的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，我很想念app/views/sessions/create.html.erb但其应该是在寻找app/views/sessions/new.html.erb由教程说明。

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

失败：

1) Authentication with valid information 
    Failure/Error: it { should have_link('Profile',  href: user_path(user), visible: false) } 
     expected #has_link?("Profile", {:href=>"https://stackoverflow.com/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)>' 

下面是我的代码拷贝。 _ __ _ __ _ __ _ __ _ __ _ __ _

Rspec的测试

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

这是在寻找new.html.erb，但是当它在该视图中到达f.submit，生成另一个请求，并且它在会话控制器中执行create方法。但是，您没有if分支的任何代码（即，当用户存在时），因此需要使用名称create来尝试渲染视图的默认操作。

如果仔细检查，我怀疑你会发现你还没有实现本教程要求你在本教程中实现的一些代码。

Answer 2

确保控制器具有if语句实现 - >应用程序/控制器/ 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