Rails和Rspec--不能批量分配受保护的属性

Question

我正在使用rspec创建一个Rails应用程序和TDD。我得到一个错误，我无法删除：

Failure/Error: invalid_user = User.new(@attr.merge("provider" => "")) 
ActiveModel::MassAssignmentSecurity::Error: 
    Can't mass-assign protected attributes: uid, info 

这里是我的用户规格：

user_spec.rb

require 'spec_helper' 

describe User do 
    before(:each) do 
    @attr = {"provider" => "providerexample", "uid" => "uidexample", "info" => {"name" =>  "Example"}} 
end 

it "should create a new instance given valid attributes" do 
    user = User.create_with_omniauth(@attr) 
end 

it "should require a provider" do 
    invalid_user = User.new(@attr.merge("provider" => "")) 
    invalid_user.should_not be_valid 
end 

it "should require a uid" do 
    invalid_user = User.new(@attr.merge("uid" => "")) 
    invalid_user.should_not be_valid 
end 
end 

而且我user.rb

class User < ActiveRecord::Base 
    attr_accessible :name, :credits, :email, :provider 

    validates :name, :provider, :uid, :presence => true 

    def self.create_with_omniauth(auth) 
    create! do |user| 
    user.provider = auth["provider"] 
    user.uid  = auth["uid"] 
    user.name  = auth["info"]["name"] 
    end 
end 

末

如果我通过将uid和info添加到attr_accessible来调试mass-assign错误，我仍然收到以下错误unknown attribute: info。

Answer 1

如果您将@attr与info所合并，则它将存在于create_with_omniauth调用中，但不是常规的create方法。

describe User do 
    let(:user_attributes) { {"provider" => "providerexample", "uid" => "uidexample"} } 

    it "should create a new instance given valid attributes" do 
    expect { 
     User.create_with_omniauth(user_attributes.merge({"info" => {"name" => "example"})) 
    }.to not_raise_error 
    end 
end