Question

当使用工厂女孩和RSpec测试我的控制器时，我收到错误：

Failures:

  1) ProductsController Handling POST for create should redirect to products after success
     Failure/Error: response.should redirect_to(products_path)
        Expected response to be a <:redirect>, but was <200>

基于日志文件，看起来该对象已经存在于DB中（并且不符合控制器中的重定向子句），这引发了两个问题：

为什么电话没有被嘲笑/抄袭？
如果我想点击数据库会有什么办法？使用@params = FactoryGirl.build(:product).attributes.except(:id, :created_at, :updated_at)也不起作用。

任何帮助都会很棒。谢谢。

test.log中：

Processing by ProductsController#create as HTML
Parameters: {"product"=>{"name"=>"Fruit Mania", "description"=>"The mania that is taking over the planet!", "price"=>"9.99", "inventory"=>"1", "product_image"=>"#<File:0x00
User Load (0.3ms)  SELECT "users".* FROM "users" WHERE "users"."id" = 1 LIMIT 1
Product Exists (0.1ms)  SELECT 1 AS one FROM "products" WHERE LOWER("products"."name") = LOWER('Fruit Mania') LIMIT 1

products_controller_spec.rb：

describe ProductsController, "Handling POST for create" do
  def sign_in_user
    user = FactoryGirl.create(:user)
    sign_in user, @user
  end

  def do_post
    post :create, :product => @params
  end

  before do
    @product = mock_model(Product, :save=> true)
    Product.stub!(:create).and_return(@product)
    @params = FactoryGirl.attributes_for(:product)
  end

  it "should redirect to products after success" do 
     sign_in_user
     do_post
     pending "need to figure out why redirect fails"
     response.should redirect_to(products_path)
  end
end

厂：

FactoryGirl.define do
  factory :product do
    name "Fruit Mania"
    description "The mania that is taking over the planet!"
    price "9.99"
    inventory 1
    product_image { File.open(File.join(Rails.root, 'spec', 'support', 'uploads', '1000x450.jpeg')) }
  end
end

控制器：

 def create
    @product = Product.new(params[:product])
    if !@product.valid?
      flash.now[:error] = ("The product was not added: <br><li>" + @product.errors.full_messages.join("<li>")).html_safe
      render "new"
    else
      if @product.save
        redirect_to products_path, :notice => "Product created successfully!"
      else
        flash.now[:error] = ("There were issues adding the product to the database. Please retry")
        render "new"
      end
    end
  end

Answer 1

我可以告诉你为什么数据库调用首先发生。

你应该替换这一行：

Product.stub!(:create).and_return(@product)

使用：

Product.any_instance.stub!(:save).and_return(true)

您正在对类方法Product::create进行存根，但您确实需要存根实例方法Product#save。

我认为以下内容也有效：

Product.stub!(:new).and_return(@product)
@product.stub(:save).and_return(true)

由于save失败，您需要通过render路径，该路径的HTTP响应为200，而不是您期望的302.

至于为什么它会袭击数据库，我恐怕无法说明为什么模型已经存在于给定的上下文中。如果您只运行此单一测试，它是否有效？尝试查看此问题以获取更多想法：

Why isn't factory_girl operating transactionally for me? - rows remain in database after tests

我希望有所帮助。

使用RSpec和Factory Girl进行模拟时获取重复项目

1 个答案: