Question

在我的测试环境中，Cancan无法建立规则。

ability.rb

class Ability
 include CanCan::Ability

  def initialize(user)
    user ||= User.new 

    if user.is_admin?
      can :manage, :all
    end
    ....
  end
 end

启动开发控制台并执行以下操作

 u = User.where(role: "admin").first
 u.ability.can?(:read, Order)        #true
 a = Ability.new(u)
 a.instance_values["rules"]          #gives [0] #<CanCan::Rule:0x000055f2637ece48 @match_all=false, @base_behavior=true, @actions=[:read], @subjects=[Order(id: integer, ....

表示一切正常。规则已设定。在rails c test中执行相同操作 a.instance_values["rules"]为空

 u = User.where(role: "admin").first
 u.ability.can?(:read, Order)        #false
 a = Ability.new(u)
 a.instance_values["rules"]          #gives []

结果是测试

RSpec.describe Ability do
  describe 'User' do
    describe "abilities" do
      context "when is an  Admin" do
       subject(:admin){ AdminAbility.new(create(:admin_user)) }
         it do  
           puts admin.can? :read, Order #false
           puts admin.ability.can? :read, Order #false
           puts admin.instance_values["rules"]      # nil   ?
           expect(admin).to be_able_to(:read, Order)
         end 
         it {expect(admin).to be_able_to(:read, User) }
        end 
       end 
      end 
    end

对

并不意外

** Failure/Error: it {expect(admim).to be_able_to(:read, Order)}
   expected to be able to :read Order(...)**

在测试运行期间，rules哈希中不存在instance_values键。为开发（和生产）环境正确生成了。（我已经针对角色和Adminuser测试了FactorySetup，这不是问题）

设置：导轨：3.2.22.2 规格：3.8 CanCan：1.6.10

Rspec测试CanCan AbilityClass无法在Rails3.2中建立规则

0 个答案: