Question

这是我当前的users_controller_spec.rb文件

require 'spec_helper'

describe UsersController do
  render_views
  .
  .
  .
  describe "success" do

   before(:each) do
    @attr = { :name => "New User", :email => "user@example.com",
              :password => "foobar", :password_confirmation => "foobar" }
  end

  it "should create a user" do
    lambda do
      post :create, :user => @attr
    end.should change(User, :count).by(1)
  end

  it "should redirect to the user show page" do
    post :create, :user => @attr
    response.should redirect_to(user_path(assigns(:user)))
   end
  end
 end
end

当我运行时，我得到以下内容：

 Failures:

1) UsersController POST 'create' success should redirect to the user show page
 Failure/Error: response.should redirect_to(user_path(user))
 ActionController::RoutingError:
   No route matches {:action=>"show", :controller=>"users"}
 # ./spec/controllers/users_controller_spec.rb:95:in `block (4 levels) in <top (required)>'

这让我相信：用户不是一个真实的对象。我如何测试这个以及如何将用户更改为user_path可以理解的对象。

提前感谢您的帮助。

更新：

def create
  @title = "Sign up"
  @user = User.new(params[:user])
  if @user.save
    redirect_to @user, :notice => "Signed Up!"
  else
    @title = "Sign up"
    render "new"
  end
end

当我运行以下内容时：

it "should redirect to the user show page" do
  post :create, :user => @attr
  user = assigns(:user)
  user.should_not be_blank
  puts "user errors are: #{user.errors.full_messages.inspect}" unless user.is_valid?
  user.should be_valid
  response.should redirect_to(user_path(user))
end

我明白了：

1) UsersController POST 'create' success should redirect to the user show page
     Failure/Error: user.should_not be_blank
       expected blank? to return false, got true
     # ./spec/controllers/users_controller_spec.rb:94:in `block (4 levels) in <top (required)>'

Answer 1

尝试使用assigns括号而不是括号。

assigns[:user]

（RSpec docs）

修改

我在测试控制器操作时总是使用的一种模式是确保分配相关视图所需的变量。例如，

it "should assign an @user variable" do post :create, :user => @attr assigns[:user].should_not be_nil assigns[:user].should be_kind_of(User) end

Answer 2

你有一个错字

response.should redirect_to(user_path(:user))

应该是

response.should redirect_to(user_path(user))

编辑：尝试检查用户是否有效：

it "should redirect to the user show page" do
  post :create, :user => @attr
  user = assigns(:user)
  user.should_not be_blank
  puts "user errors are: #{user.errors.full_messages.inspect}" unless user.is_valid?
  user.should be_valid
  response.should redirect_to(user_path(user))
end

我知道它适用于之前的测试用例...但仍然值得在这里至少进行一次广泛检查。你可以在确定时删除所有的guff。

Answer 3

在你的测试中：

 it "should redirect to the user show page" do
    @user = Factory(:user)
    post :create, :user => @attr
    user = assigns(:user)
    response.should redirect_to(user_path(@user))
  end

您的@attr哈希与@user不同。您正在创建具有@attr属性的用户，并断言它应该重定向到@user show（与创建的不同）。改为：

 it "should redirect to the user show page" do
    post :create, :user => @attr
    user = assigns(:user)
    response.should redirect_to(user_path(user))
  end

Rspec测试不会通过使用assigns（）

3 个答案: