Question

我刚刚完成chapter 10 of the Ruby on Rails Tutorial，添加了编辑/更新，索引和销毁用户的功能。在我的应用程序中，一切似乎都正常工作，但是当我运行RSpec时，我的许多测试都失败了。

我设置的users_controller_spec与书的设置完全相同，我的应用程序代码也一样。一个问题可能是我使用Rails 3.1.1而不是他在书中使用的Rails 3.0？它对于以前的测试来说并不是一个问题，只是偶尔会出现几行不同的代码。在我开始section 10.2.1后，问题就开始出现了。

以下是我看到的错误列表，如果您需要更多信息，请与我们联系。谢谢！

1) UsersController GET 'index' for signed-in users should be successful
 Failure/Error: response.should be_success
   expected success? to return true, got false
 # ./spec/controllers/users_controller_spec.rb:31:in `block (4 levels) in <top (required)>'

2) UsersController GET 'index' for signed-in users should have the right title
 Failure/Error: response.should have_selector("title", :content => "All users")
   expected following output to contain a <title>All users</title> tag:
   <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
   <html><body>You are being <a href="http://test.host/signin">redirected</a>.</body></html>
 # ./spec/controllers/users_controller_spec.rb:36:in `block (4 levels) in <top (required)>'

3) UsersController GET 'index' for signed-in users should have an element for each user
 Failure/Error: response.should have_selector("li", :content => user.name)
   expected following output to contain a <li>Richard Berger</li> tag:
   <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
   <html><body>You are being <a href="http://test.host/signin">redirected</a>.</body></html>
 # ./spec/controllers/users_controller_spec.rb:42:in `block (5 levels) in <top (required)>'
 # ./spec/controllers/users_controller_spec.rb:41:in `each'
 # ./spec/controllers/users_controller_spec.rb:41:in `block (4 levels) in <top (required)>'

4) UsersController GET 'index' for signed-in users should paginate users
 Failure/Error: response.should have_selector("div.pagination")
   expected following output to contain a <div.pagination/> tag:
   <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
   <html><body>You are being <a href="http://test.host/signin">redirected</a>.</body></html>
 # ./spec/controllers/users_controller_spec.rb:48:in `block (4 levels) in <top (required)>'

5) UsersController GET 'edit' should be successful
 Failure/Error: response.should be_success
   expected success? to return true, got false
 # ./spec/controllers/users_controller_spec.rb:184:in `block (3 levels) in <top (required)>'

6) UsersController GET 'edit' should have the right title
 Failure/Error: response.should have_selector("title", :content => "Edit user")
   expected following output to contain a <title>Edit user</title> tag:
   <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
   <html><body>You are being <a href="http://test.host/signin">redirected</a>.</body></html>
 # ./spec/controllers/users_controller_spec.rb:189:in `block (3 levels) in <top (required)>'

7) UsersController GET 'edit' should have a link to change the Gravatar
 Failure/Error: response.should have_selector("a", :href => gravatar_url, :content => "change")
   expected following output to contain a <a href='http://gravatar.com/emails'>change</a> tag:
   <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
   <html><body>You are being <a href="http://test.host/signin">redirected</a>.</body></html>
 # ./spec/controllers/users_controller_spec.rb:195:in `block (3 levels) in <top (required)>'

8) UsersController PUT 'update' failure should render the 'edit' page
 Failure/Error: response.should render_template('edit')
   expecting <"edit"> but rendering with <"">
 # ./spec/controllers/users_controller_spec.rb:214:in `block (4 levels) in <top (required)>'

9) UsersController PUT 'update' failure should have the right title
 Failure/Error: response.should have_selector("title", :content => "Edit user")
   expected following output to contain a <title>Edit user</title> tag:
   <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd">
   <html><body>You are being <a href="http://test.host/signin">redirected</a>.</body></html>
 # ./spec/controllers/users_controller_spec.rb:219:in `block (4 levels) in <top (required)>'

10) UsersController PUT 'update' success should change the user's attributes
 Failure/Error: @user.name.should  == @attr[:name]
   expected: "New Name"
        got: "Richard Berger" (using ==)
 # ./spec/controllers/users_controller_spec.rb:232:in `block (4 levels) in <top (required)>'

11) UsersController PUT 'update' success should redirect to the user show page
 Failure/Error: response.should redirect_to(user_path(@user))
   Expected response to be a redirect to <http://test.host/users/1> but was a redirect to <http://test.host/signin>
 # ./spec/controllers/users_controller_spec.rb:238:in `block (4 levels) in <top (required)>'

12) UsersController PUT 'update' success should have a flash message
 Failure/Error: flash[:success].should =~ /updated/
   expected: /updated/
        got: nil (using =~)
 # ./spec/controllers/users_controller_spec.rb:243:in `block (4 levels) in <top (required)>'

13) UsersController authentication of edit/update pages for signed-in users should require matching users for 'edit'
 Failure/Error: response.should redirect_to(root_path)
   Expected response to be a redirect to <http://test.host/> but was a redirect to <http://test.host/signin>
 # ./spec/controllers/users_controller_spec.rb:276:in `block (4 levels) in <top (required)>'

14) UsersController authentication of edit/update pages for signed-in users should require matching users for 'update'
 Failure/Error: response.should redirect_to(root_path)
   Expected response to be a redirect to <http://test.host/> but was a redirect to <http://test.host/signin>
 # ./spec/controllers/users_controller_spec.rb:281:in `block (4 levels) in <top (required)>'

15) UsersController DELETE 'destroy' as a non-admin user should protect the page
 Failure/Error: response.should redirect_to(root_path)
   Expected response to be a redirect to <http://test.host/> but was a redirect to <http://test.host/signin>
 # ./spec/controllers/users_controller_spec.rb:303:in `block (4 levels) in <top (required)>'

16) UsersController DELETE 'destroy' as an admin user should destroy the user
 Failure/Error: lambda do
   count should have been changed by -1, but was changed by 0
 # ./spec/controllers/users_controller_spec.rb:315:in `block (4 levels) in <top (required)>'

17) UsersController DELETE 'destroy' as an admin user should redirect to the users page
 Failure/Error: response.should redirect_to(users_path)
   Expected response to be a redirect to <http://test.host/users> but was a redirect to <http://test.host/signin>
 # ./spec/controllers/users_controller_spec.rb:322:in `block (4 levels) in <top (required)>'

更新

我解决了2个错误，但大多数仍然存在。一个问题似乎是当测试试图“获取：索引”时，由于重定向（到/ signin页面），它找不到正确的页面。我没有提出任何重定向（无论如何），但也许有人知道这可能是如何发生的以及如何解决它？

更新＃2：

Per @ bkempner的请求，这是来自users_controller_spec和users_controller（users_controller_spec优先）的相关代码。很多代码，但很多错误......：

describe "for signed-in users" do

  before(:each) do
    @user = test_sign_in(Factory(:user))
    second = Factory(:user, :email => "another@example.com")
    third  = Factory(:user, :email => "another@example.net")

    @users = [@user, second, third]
    30.times do
      @users << Factory(:user, :email => Factory.next(:email))
    end
  end

  it "should be successful" do
    get :index
    response.should be_success
  end

  it "should have the right title" do
    get :index
    response.should have_selector("title", :content => "All users")
  end

  it "should have an element for each user" do
    get :index
    @users[0..2].each do |user|
      response.should have_selector("li", :content => user.name)
    end
  end

  it "should paginate users" do
    get :index
    response.should have_selector("div.pagination")
    response.should have_selector("span.diabled", :content => "Previous")
    response.should have_selector("a", :href => "/users?page=2", :content => "2")
    response.should have_selector("a", :href => "/users?page=2", :content => "Next")
  end
end

describe "GET 'edit'" do

  before(:each) do
    @user = Factory(:user)
    test_sign_in(@user)
  end

  it "should be successful" do
    get :edit, :id => @user
    response.should be_success
  end

  it "should have the right title" do
    get :edit, :id => @user
    response.should have_selector("title", :content => "Edit user")
  end

  it "should have a link to change the Gravatar" do
    get :edit, :id => @user
    gravatar_url = "http://gravatar.com/emails"
    response.should have_selector("a", :href => gravatar_url, :content => "change")
  end
end

describe "PUT 'update'" do

  before(:each) do
    @user = Factory(:user)
    test_sign_in(@user)
  end

  describe "failure" do

    before(:each) do
      @attr = { :email => "", :name => "", :password => "", :password_confirmation => "" }
    end

    it "should render the 'edit' page" do
      put :update, :id => @user, :user => @attr
      response.should render_template('edit')
    end

    it "should have the right title" do
      put :update, :id => @user, :user => @attr
      response.should have_selector("title", :content => "Edit user")
    end
  end

  describe "success" do

    before(:each) do
      @attr = { :name => "New Name", :email => "user@example.org", :password => "barbaz", :password_confirmation => "barbaz" }
    end

    it "should change the user's attributes" do
      put :update, :id => @user, :user => @attr
      @user.reload
      @user.name.should  == @attr[:name]
      @user.email.should == @attr[:email]
    end

    it "should redirect to the user show page" do
      put :update, :id => @user, :user => @attr
      response.should redirect_to(user_path(@user))
    end

    it "should have a flash message" do
      put :update, :id => @user, :user => @attr
      flash[:success].should =~ /updated/
    end
  end
end

describe "authentication of edit/update pages" do

  describe "for signed-in users" do

    before(:each) do
      wrong_user = Factory(:user, :email => "user@example.net")
      test_sign_in(wrong_user)
    end

    it "should require matching users for 'edit'" do
      get :edit, :id => @user
      response.should redirect_to(root_path)
    end

    it "should require matching users for 'update'" do
      get :update, :id => @user, :user => {}
      response.should redirect_to(root_path)
    end
  end
end

describe "DELETE 'destroy'" do

  before(:each) do
    @user = Factory(:user)
  end

  describe "as a non-admin user" do
    it "should protect the page" do
      test_sign_in(@user)
      delete :destroy, :id => @user
      response.should redirect_to(root_path)
    end
  end

  describe "as an admin user" do

    before(:each) do
      admin = Factory(:user, :email => "admin@example.com", :admin => true)
      test_sign_in(admin)
    end

    it "should destroy the user" do
      lambda do
        delete :destroy, :id => @user
      end.should change(User, :count).by(-1)
    end

    it "should redirect to the users page" do
      delete :destroy, :id => @user
      response.should redirect_to(users_path)
    end
  end
end

现在整个users_controller：

class UsersController < ApplicationController
before_filter :authenticate, :only => [:index, :edit, :update, :destroy]
before_filter :correct_user, :only => [:edit, :update]
before_filter :admin_user,   :only => :destroy

def index
  @title = "All users"
  @users = User.paginate(:page => params[:page])
end

def show
  @user = User.find(params[:id])
  @title = @user.name
end

def new
  @user = User.new
  @title = "Sign up"
end

def create
  @user = User.new(params[:user])
  if @user.save
    sign_in @user
    flash[:success] = "Welcome to the Sample App!"
    redirect_to @user
  else
    @title = "Sign up"
    render 'new'
  end
end

def edit
  @title = "Edit user"
end

def update
  @user = User.find(params[:id])
  if @user.update_attributes(params[:user])
    flash[:success] = "Profile updated"
    redirect_to @user
  else
    @title = "Edit user"
    render 'edit'
  end
end

def destroy
  User.find(params[:id]).destroy
  flash[:success] = "User destroyed."
  redirect_to users_path
end

private

  def authenticate
    deny_access unless signed_in?
  end

  def correct_user
    @user = User.find(params[:id])
    redirect_to(root_path) unless current_user?(@user)
  end

  def admin_user
    redirect_to(root_path) unless current_user.admin?
  end
end

Answer 1

我遇到了同样的问题，发现答案已发布here。

基本上，RSPEC需要为sign_in和sign_out设置@current_user和当前用户。奇怪而烦人，但也许是人们可能会考虑在生产应用程序中使用Devise的原因！

Answer 2

提供控制器和测试代码会很有帮助。但是如果没有它们，我的猜测就是你在前面的块中错过了这个失败的测试：

@user = Factory(:user)
test_sign_in(@user)

重定向正在发生，因为教程中使用了任何授权逻辑，我认为它在10.11和10.12中有详细说明。

这是我在控制器测试中使用auth看到的一个常见问题，希望这也是你的全部内容。

编辑：

感谢您提供代码。

以下是我注意到的一些事情：

1。）失败1-14,19是由于用户身份验证不起作用，特别是signed_in？。你的会话控制器测试通过了吗？在测试用户控制器之前，你一定要确保它们通过，因为它取决于那个功能。

2。）失败15-18是因为您可能没有创建迁移来添加清单10.35中的布尔属性 - 或者 - 您需要在测试数据库上运行迁移：rake db:test:prepare

抱歉，我无法指出你所有的问题，但希望能为你指明正确的方向。

Answer 3

检查deny_access块之前SessionsHelper中private是否已定义。

这本书有一个拼写错误，暗示你应该把deny_access放在模块的末尾。不幸的是，这意味着该函数被定义为私有。

module SessionsHelper
  .
  .
  .
  def deny_access
    redirect_to signin_path, :notice => "Please sign in to access this page."
  end
end

Railstutorial.org网站上的更正代码如下：

module SessionsHelper
  .
  .
  .
  def deny_access
    redirect_to signin_path, :notice => "Please sign in to access this page."
  end

  private
  .
  .
  .
end

Answer 4

我遇到了同样的问题并使用了Rails 3.1.3。这是我的解决方案。

首先，确保两者：

def current_user=(user)
  @current_user = user
end

def current_user
  @current_user ||= user_from_remember_token
end

在sessions_helper.rb

中

另外，在sessions_helper.rb中更改：

def sign_out
    cookies.delete(:remember_token)
    current_user.nil
end

到

def sign_out
    cookies.delete(:remember_token)
    self.current_user.nil
end

还有一件事。

在spec_helper.rb中更改：

def test_sign_in(user)
    controller.sign_in(user)
end

到

def test_sign_in(user)
    controller.current_user = user
end

看看是否有帮助，我还没有完成这一章，但这让我了解了10.2.1。有经验的人可以对为什么进行评论。我读了另一个根据before_filter编写的解决方案，以使rspec通过。

Answer 5

您是否在users_controller_spec中的顶级render_views后进行describe调用？

Answer 6

我今天使用rails 3.1.3遇到了同样的问题。但是，我去了github网站上的railsstutorial示例应用程序，并注意到sessions_helper.erb有一些更改。

1。）在sign_in（用户）方法中将'self'关键字添加到'current_user'：

def sign_in(user)
  cookies.permanent.signed[:remember_token] = [user.id, user.salt]
  self.current_user = user
end

2。）这也适用于'sign_out'方法，将'self'关键字添加到'current_user'

def sign_out
  cookies.delete(:remember_token)
  self.current_user = nil
end

我没有做任何其他更改，所有测试都通过了。

为什么我的RSpec测试失败，但我的应用程序正在运行？

6 个答案: