Pundit::NotDefinedError: unable to find policy `UserPolicy`

Question

我一定是做错了什么，或者我需要戴眼镜。我在这里关注本教程：

http://vaidehijoshi.github.io/blog/2015/09/29/using-pundit-the-cool-kid-of-authorization/

我已经按照说明在 app/policies 文件夹中创建了 application_policy.rb 文件和 user_policy.rb 文件。

Pundit 似乎没有在 IntegrationTests.

中检测到我的 UserPolicy 文件

我的设置

Ruby 在 Rails 5 RC1
Ruby 2.2.4p230
敲gem进行JWT认证
专家 1.1.0

user_policy.rb

class UserPolicy < ApplicationPolicy    
  def update?
    user == resource
  end
end

在我的 UserController 中，我有定义的 REST API 操作。目前，我只是在测试 "update" 操作：

用户控制器

def update
  user = User.find_by({id: params[:id]})

  authorize user

  render json: { error: "Failed to find" }, status: :not_found and return unless user

  if user.update!(user_params)
    render json: user
  else
    render json: { error: "Not found" }, status: :not_found
  end
end

users_controller_test.rb

test "update other user's data should raise NotAuthorized exception" do
  @user_two = users(:two)

  put user_path(@user_two.id), params: { first_name: "Jim" }, headers: @authorization_header
  assert_response :success # forcing fail test for now to test plumbing
end

我收到以下错误：

.E

Error:
UsersControllerTest#test_update_other_user's_data_should_raise_NotAuthorized_exception:
Pundit::NotDefinedError: unable to find policy `UserPolicy` for `#<User id: 298486374, first_name: "MyString", last_name: "MyString", email: "MyString", password_digest: "MyString", created_at: "2016-05-27 13:30:07", updated_at: "2016-05-27 13:30:07", role_id: nil>`
    app/controllers/users_controller.rb:42:in `update'
    test/controllers/users_controller_test.rb:60:in `block in <class:UsersControllerTest>'

知道我做错了什么吗？

编辑

如果有任何帮助，我的 UserControllerTest 文件如下所示：

require 'test_helper'

class UsersControllerTest < ActionDispatch::IntegrationTest
  def authenticate
    token = Knock::AuthToken.new(payload: { sub: users(:one).id }).token
    @authorization_header = { HTTP_AUTHORIZATION: "Bearer #{token}" }
  end

  setup do
    # load "#{Rails.root}/db/seeds.rb"
    Rails.application.load_seed
    authenticate
    @user = users(:one)
  end

  test "logged in user should return ok" do
    get users_path, headers: @authorization_header
    assert_response :ok
  end

  test "not logged in user should return unauthorized" do
    get users_path
    assert_response :unauthorized
  end

  test "user json should not contain password_digest" do
    get user_path(@user.id), headers: @authorization_header
    assert_response :ok
    json = JSON.parse(response.body)
    assert json.key?("password_digest") == false
  end

  test "create user without authorization header should return created" do
    user = {
      first_name: "Bob",
      last_name: "Brown",
      email: "bob@gmail.com",
      password: "abc",
      password_confirmation: "abc"
    }

    post users_path, params: user
    assert_response :created
    json = JSON.parse(response.body)
    assert !json.empty?
  end

  test "update user should return ok" do
    put user_path(@user.id), params: { first_name: "Bob"}, headers: @authorization_header
    assert_response :ok

    updated_user = User.find_by({id: @user.id})

    assert_equal "Bob", updated_user.first_name
  end

  test "update other user's data should raise NotAuthorized exception" do
    @user_two = users(:two)

    put user_path(@user_two.id), params: { first_name: "Jim" }, headers: @authorization_header
    assert_response :success
  end

  test "delete user shoudl return ok" do
    assert_difference "User.count", -1 do
      delete user_path(@user.id), headers: @authorization_header
    end
  end
end

在我一小时前添加 Pundit 内容之前，我的所有测试都已通过。

Answer 1

好吧....我不知道到底发生了什么，但显然，我退出了我所有的 Mac 终端和 Atom IDE 我输入代码的地方。

然后我打开我的终端并再次执行 rails test 命令，这次成功了：

....E

Error:
UsersControllerTest#test_update_other_user's_data_should_raise_NotAuthorized_exception:
Pundit::NotAuthorizedError: not allowed to update? this #<User id: 298486374, first_name: "MyString", last_name: "MyString", email: "MyString", password_digest: "MyString", created_at: "2016-05-27 15:19:51", updated_at: "2016-05-27 15:19:51", role_id: nil>
    app/controllers/users_controller.rb:42:in `update'
    test/controllers/users_controller_test.rb:60:in `block in <class:UsersControllerTest>'

奇怪...

TL;DR

退出您的IDE和终端
重新打开终端，然后重试

Answer 2

要修复，我运行：

bin/spring stop
bin/spring binstub --remove --all
bundle update spring
bundle exec spring binstub --all

Pundit::NotDefinedError: unable to find policy `UserPolicy`

Pundit::NotDefinedError: unable to find policy `UserPolicy`

ruby

ruby-on-rails

pundit

ruby-on-rails-5

我的设置

user_policy.rb

用户控制器

users_controller_test.rb

编辑

TL;DR