如何正确设置和使用 factory_girl_rails？

Question

我认为我在使用 Rails 配置 FactoryGirl 时遇到了问题。我最初关注ASCIIcasts #275: how i test，但 rake 给了我NameError: uninitialized constant ...

我错过了什么吗？是否有可能某些配置文件有误？我对 RSpec 和 Rails 还是很陌生。

我正在使用 Rails 3.2.2 + Mongoid + RSpec + factory_girl_rails。

错误：

Failures:

  1) User should save user with valid required fields
     Failure/Error: let(:user) { FactoryGirl.build(:valid_user) }
     NameError:
       uninitialized constant ValidUser
     # ./spec/models/user_spec.rb:4:in `block (2 levels) in <top (required)>'
     # ./spec/models/user_spec.rb:7:in `block (2 levels) in <top (required)>'

spec/factories.rb

FactoryGirl.define do
  factory :valid_user do
    name     'somename'
    email    'a@b.com'
    password 'somepassword'
  end
end

spec/models/user_spec.rb

require 'spec_helper'

describe User do
  let(:user) { FactoryGirl.build(:valid_user) }

  it "should save user with valid required fields" do
    user.should be_valid
  end
end

spec/spec_helper.rb

ENV["RAILS_ENV"] ||= 'test'
require File.expand_path("../../config/environment", __FILE__)
require 'rspec/rails'
require 'rspec/autorun'
require 'capybara/rspec'

Dir[Rails.root.join("spec/support/**/*.rb")].each {|f| require f}

RSpec.configure do |config|
  config.infer_base_class_for_anonymous_controllers = false

  config.include FactoryGirl::Syntax::Methods
end

Answer 1

输出整个错误，或者至少输出整个第一句话通常很有帮助——你甚至没有告诉我们缺失的常量是什么！

更新：感谢整个错误。当您定义工厂 :valid_user 时，Factory Girl 将自动假定它用于名为 ValidUser 的模型。为了解决这个问题，您可以将您的工厂命名为 :user（假设您有一个 User 模型），或者您可以尝试：

FactoryGirl.define do
  factory :valid_user, :class => User do
    name     'somename'
    email    'a@b.com'
    password 'somepassword'
  end
end

或者，如果你想拥有几个不同类型的用户工厂，你可以使用：

FactoryGirl.define do
  factory :user do
    # set some attrs
  end

  factory :valid_user, :parent => :user do
    name     'somename'
    email    'a@b.com'
    password 'somepassword'
  end

  factory :invalid_user, :parent => :user do
    # some other attrs
  end
end

Answer 2

你可以这样声明工厂............

 Factory.define :organization do |g|
   g.name 'Test Organization'
   g.phone_number '5345234561'
   g.website_url 'www.testorg.com'
   g.city 'chichago '
   g.association :state

 end

并像这样在组织规范中使用它.....

require 'spec_helper'

 describe Organization do
    before :each do
     @state = Factory :state
     @organization = Factory :organization ,:state => @state
    end

  it "should be invalid without a name" do
    @organization.name = nil
    @organization.should_not be_valid
 end

end

享受吧！！！！！！！！！！！！！！！！