1

我测试我的应用程序以创建一个新的用户汽车，后来用户创建了应用程序必须重定向到 user_car_path 的新车（我发布了我的路线）：

user_cars GET    /users/:user_id/cars(.:format)                               cars#index
                      POST   /users/:user_id/cars(.:format)                               cars#create
         new_user_car GET    /users/:user_id/cars/new(.:format)                           cars#new
        edit_user_car GET    /users/:user_id/cars/:id/edit(.:format)                      cars#edit
             user_car GET    /users/:user_id/cars/:id(.:format)                           cars#show
                      PUT    /users/:user_id/cars/:id(.:format)                           cars#update
                      DELETE /users/:user_id/cars/:id(.:format)                           cars#destroy

所以我正在用这个 rspec 测试我的应用程序：

describe "POST 'create' car" do

describe "car created success" do
  before(:each) do
            @user = User.create!(:email => "foo@example.com", :password => "foobar", :password_confirmation => "foobar" )
            @car = Car.create!(:brand => "example", :color => "foobar", :model => "foobar", :year =>"2012")
  end

  it "should create a car" do
    lambda do
      post :create, :cars => @car, :user_id => @user.id
    end.should change(Car, :count).by(1)
  end

  it "should redirect to the user cars page" do
    post :create, :cars => @car, :user_id => @user.id
    response.should redirect_to user_car_path(@user, @car)
  end
end
end

但我有 2 个错误

Failures:

1) CarsController POST 'create' car car created success should create a car
 Failure/Error: lambda do
   count should have been changed by 1, but was changed by 0
 # ./spec/controllers/car_controller_spec.rb:20

2) CarsController POST 'create' car car created success should redirect to the user cars page
 Failure/Error: response.should redirect_to user_car_path(@user, @car)
   Expected response to be a redirect to <http://test.host/users/115/cars/40> but was a redirect to <http://test.host/users/115/cars/new>.
 # ./spec/controllers/car_controller_spec.rb:27

但我的应用程序正常工作；这是我的汽车控制器

class CarsController < ApplicationController
....

def create
  @user = User.find(params[:user_id])
  @car = @user.cars.build(params[:car])
  if @car.save
    redirect_to user_car_path(@user, @car), :flash => { :notice => "  car created!" }
  else
    redirect_to new_user_car_path ,:flash => { :notice => " sorry try again :(" }
  end
end
def show
  @user = User.find(params[:user_id])     
  @car = @user.cars.find(params[:id])   
end

....
4

3 回答 3

4

您正在数据库中创建汽车，而不仅仅是在before(:each). 此外，您将参数传递为:cars而不是:car. 最后，我个人也会使用let. 试试这个。

describe "POST 'create' car" do

  let(:user) { User.create!(:email => "foo@example.com", :password => "foobar", :password_confirmation => "foobar" ) }
  let(:car)  { Car.new(:brand => "example", :color => "foobar", :model => "foobar", :year =>"2012")}

  it "should create a car" do
    lambda do
      post :create, :car => car, :user_id => user.id
    end.should change(Car, :count).by(1)
  end

  it "should redirect to the user cars page" do
    post :create, :cars => car, :user_id => user.id
    # note: car doesn't have an ID, you have to fetch it from the db to get an id
    response.should redirect_to user_car_path(user.id, user.cars.last.id)
  end
end

最后一点，你会想看看工厂女孩

然后你可以这样做：

let(:user){ FactoryGirl.create(:user) }
let(:car) { FactoryGirl.build(:car) } # note: BUILD not CREATE
于 2012-08-03T15:56:58.727 回答
0

我认为您想要以下内容（：cars => :car 并使用使控制器中的汽车创建有效的参数。我很困惑为什么您要在规范中创建汽车，因为这似乎是对汽车创建的测试）

  it "should create a car" do
    lambda do
      post :create, :car => {:brand => "example", :color => "foobar", :model => "foobar", :year =>"2012"}, :user_id => @user.id
    end.should change(Car, :count).by(1)
  end

  it "should redirect to the user cars page" do
    post :create, :car => {:brand => "example", :color => "foobar", :model => "foobar", :year =>"2012"}, :user_id => @user.id
    response.should redirect_to user_car_path(@user, @car)
  end
于 2012-08-03T15:31:22.383 回答
0

我认为这是因为您的验证失败。要知道它是否失败，请在保存到控制器之前：

puts @car.valid?

如果它是假的，你的测试将失败，这是正常的。要设置为 true，您可以执行以下操作：

before(:each) do
  ...
  Car.any_instance.stub(:valid?).and_return(true)
end

您还可以使用存根和模拟来返回User.find和的实例Car.build。请参阅文档：https ://www.relishapp.com/rspec/rspec-mocks/v/2-6/docs/method-stubs

于 2012-08-03T15:34:19.607 回答