module Mod
  class Zed
   include DataMapper::Resource
  end
end

为了测试,我定义了工厂.

#/factories/zed.rb
FactoryGirl.define do
  factory :zed do
   #code 
  end
end

但是当我开始测试时,我得到一个错误.

describe 'Zed' do
  it "should have ..." do
    FactoryGirl.create(:zed)
  end
end

错误：

Failure/Error: FactoryGirl.create(:zed)
 NameError:
   uninitialized constant Zed

如何测试模块中包含的类？
谢谢.