我有一个模型如下：
class Greeting < ActiveRecord::Base
attr_accessible :headline,:icon,:content
belongs_to :user
accepts_nested_attributes_for :user,:reject_if => proc { |a| a[:name].blank? || a[:email].blank? }
我该如何进行Rspec测试？
解决方法
在这里,您有Shoulda宏用于测试acceptance_nested_attributes_for：
http://mediumexposure.com/testing-acceptsnestedattributesfor-shoulda-macros/.它不支持任何选项(如：reject_if),只有bare acceptance_nested_attributes_for.
但是对于：reject_if,您可以为User创建一个带有嵌套属性的有效Greeting模型,但不包含：name.然后检查用户是否已保存,然后与空白：电子邮件一样
所以你可以这样做：
describe Greeting
it { expect { Factory(:greeting,:user_attributes => Factory_attributes_for(:user)) }.to change(User,:count).by(1) }
it { expect { Factory(:greeting,:user_attributes => Factory_attributes_for(:user,:name => '')) }.to_not change(User,:count) }
it { expect { Factory(:greeting,:user_attributes => Factory.attributes_for(:user,:email => '')) }.to_not change(User,:count) }
end