Question

我正在使用rspec进行测试，我的常见问题是路由这是我的rspec

describe "POST 'create'" do

    describe "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 welcome page" do
            post :create, :cars => @car, :user_id => @user.id
            response.should redirect_to user_car_path
        end
    end
end

my routes.rb ...

Estaciones::Application.routes.draw do
root :to => "static_pages#home"
match '/contact', :to=>'static_pages#contact'
match '/about', :to=>'static_pages#about'
devise_for :users
resources :gas_stations
resources :users do
  resources :cars do
    resources :tanking_logs
  end
end
....

更新

当我运行测试时，出现了这个错误：

1) CarsController POST 'create' success should create a car
 Failure/Error: post :create, :cars => @car, :user => @user
 ActionController::RoutingError:
   No route matches {:cars=>"12", :user=>"74", :controller=>"cars", :action=>"create"}
 # ./spec/controllers/car_controller_spec.rb:22:in `block (5 levels) in <top (required)>'
 # ./spec/controllers/car_controller_spec.rb:21:in `block (4 levels) in <top (required)>'

2) CarsController POST 'create' success should redirect to the user welcome page
 Failure/Error: post :create, :cars => @car, :user => @user
 ActionController::RoutingError:
   No route matches {:cars=>"13", :user=>"75", :controller=>"cars", :action=>"create"}
 # ./spec/controllers/car_controller_spec.rb:27:in `block (4 levels) in <top (required)>'

这是我的CarsController

class CarsController < ApplicationController
def new
  @user = User.find(params[:user_id])
  @car = @user.cars.build
end

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

...

我用你给我的解决方案编辑了它但仍然没有

这是我的佣金路线

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

Answer 1

看起来您的:cars资源已嵌套在:users资源中：

resources :users do
  resources :cars do
...

如果以这种方式构建路由，那么在调用http动作时也需要指定用户。这不起作用：

post :create, :car => @car

因为它缺少您在控制器中访问的:user_id：

@user = User.find(params[:user_id])

要解决此问题，请传递:user_id然后模拟或存根User以返回用户或模拟用户。

更新：

混合模拟和实际记录通常不是一种好习惯，所以这里是你如何在没有模拟的情况下做到这一点：

before(:each) do
  @user = User.create(...)
  @car = {:brand => "example", :color => "foobar", :model => "foobar", :year =>"2012" }
end

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 welcome page" do
  post :create, :car => @car, :user_id => @user.id
  response.should redirect_to user_car_path
end

将创建用户所需的任何最小属性插入User.create(...)。我认为应该这样做。

如果你想用模拟做这个（这通常是更好的做法，为了保持控制器/模型规格分离），这里是a good starting point on how to do it。

使用rspec的ActionController :: RoutingError

1 个答案: