RSPEC對於協會在Active模式

Question

如何測試在rspec的外鍵關聯，

下面是代碼

has_one :store, :foreign_key => "seller_id", :class_name => "Store" 

如何寫rspec的此代碼

請告訴我一些建議

Answer 1

Model.new.build_store.class.should eql Store

Answer 2

答案是應該匹配寶石。檢查了這一點：https://github.com/thoughtbot/shoulda-matchers

describe Post do 
    it { should belong_to(:user) } 
    it { should have_many(:tags).through(:taggings) } 
end 

describe User do 
    it { should have_many(:posts) } 
end