rspec控制器测试中嵌套关联的正确格式是什么？

在rspec控制器规范中，当您的模型has_one关联时，定义valid_attributes方法的正确方法是什么？rspec控制器测试中嵌套关联的正确格式是什么？

* Rails的3.2.12，rspec的2.12，factory_girl_rails 4.2.1 *

，如果你创建了有两个模型，人脑，像这样一个新的Rails项目：

rails new crowd 
cd crowd 
rails g scaffold person name:string 
rails g scaffold brain weight_kg:float

（并所有的跑腿给他们关联），你可以用这些模型结束：

class Brain < ActiveRecord::Base 
    belongs_to :person 
    attr_accessible :weight_kg 
    attr_accessible :person 
    attr_accessible :person_attributes 
    accepts_nested_attributes_for :person 
end 
class Person < ActiveRecord::Base 
    has_one :brain 
    attr_accessible :name 
    attr_accessible :brain 
    attr_accessible :brain_attributes 

    accepts_nested_attributes_for :brain 
    validates :brain, :presence => { :message => "Please give me a brain" } 
end

相关自动生成的投机/控制器/ people_controller_spec.rb的内容：

describe PeopleController do 
    def valid_attributes 
    { 
     "name" => "A Person", 
    } 
    end

此时valid_attributes是一个人无效的，因为它缺少一个大脑。好的，我们来添加一个。但是如何？

错误：

def valid_attributes 
    { 
     "name" => "A Person", 
     "brain" => { "weight_kg" => "25" } 
    } 
    end

^生成ActiveRecord::AssociationTypeMismatch: Brain(#86698290) expected, got ActiveSupport::HashWithIndifferentAccess(#84831840)

错误：

def valid_attributes 
    { 
     "name" => "A Person", 
     "brain" => Brain.new(:weight_kg => 25) 
    } 
    end

^因为它不会保存。错误将是Expected response to be a <:redirect>, but was <200>和expected persisted? to return true, got false和另外2个。

错误：（假设有效的投机/工厂/ brain.rb）

def valid_attributes 
    { 
     "name" => "A Person", 
     "brain" => FactoryGirl.build(:brain), 
    } 
    end

^这是错误的，因为这也将不保存在创建/更新一个person记录。错误将是Expected response to be a <:redirect>, but was <200>和expected persisted? to return true, got false和另外2个。

来源

2013-02-15 JD.

def valid_attributes 
    { 
     "name" => "A Person", 
     "brain_attributes" => { "weight_kg" => "25" } 
    }

或者

def valid_attributes 
    { 
     "name" => "A Person", 
     "brain_attributes" => FactoryGirl.attributes_for(:brain) 
    }

来源

2013-02-15 18:32:18

rspec控制器测试中嵌套关联的正确格式是什么？

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