如何在Ruby on Rails中使用FactoryGirl创建带有嵌套属性的测试对象?

I have an Invoice model that may contain a number of Items as well:

我有一个发票模型可能也包含一些项目:

class Invoice < ActiveRecord::Base

  attr_accessible :number, :date, :recipient, :items_attributes

  belongs_to :user

  has_many :items

  accepts_nested_attributes_for :items, :reject_if => :all_blank, :allow_destroy => true

end

I am trying to test this using RSpec:

我正在尝试使用RSpec来测试:

describe InvoicesController do

  describe 'user access' do

    before :each do
      @user = FactoryGirl.create(:user)
      @invoice = @user.invoices.create(FactoryGirl.attributes_for(:invoice))
      sign_in(@user)
    end

    it "renders the :show view" do
      get :show
      expect(response).to render_template :show
    end

  end

end

Unfortunately, this test (and all the others) fail with this error message from RSpec:

不幸的是，这个测试(以及所有其他测试)失败了，错误消息来自RSpec:

Failure/Error: @invoice = @user.invoices.create(FactoryGirl.attributes_for(:invoice))
ActiveModel::MassAssignmentSecurity::Error:
Can't mass-assign protected attributes: items

How can I create an invoice with items that will pass my tests?

我如何用通过测试的项目创建一个发票?

I am using FactoryGirl to fabricate objects like this:

我正在用factory - girl制作这样的物品:

factory :invoice do
  number { Random.new.rand(0..1000000) }
  recipient { Faker::Name.name }
  date { Time.now.to_date }
  association :user
  items { |i| [i.association(:item)] } 
end

factory :item do
  date { Time.now.to_date }
  description { Faker::Lorem.sentences(1) }
  price 50
  quantity 2
end

2 个解决方案

#1

This is a stack answer I bookmarked when I was trying to figure it out:

这是我在试图找出答案的时候收藏的一个堆栈答案:

factory-girl-nested-factory

Edit: Sorry, just realized the answer was pure FactoryGirl and no rspec.

编辑:对不起，我刚意识到答案是纯工厂女孩，没有说明。

#2

Have you checked https://github.com/thoughtbot/factory_girl/blob/master/GETTING_STARTED.md#associations?

你检查https://github.com/thoughtbot/factory_girl/blob/master/GETTING_STARTED.md协会吗?

There's a part about has_many-associations. Basically what it says is to extend your invoice-factory with one that adds some items after it created the invoice.

有一部分是关于has_many-associations的。基本上，它说的是扩展您的发票工厂，其中一个在创建发票后添加了一些项目。

#1