RSpec 测试失败但应用程序正常工作

Question

我正在学习 Rails 4 In Action 教程，并且我正在学习第 7 章。

这是我看到的错误：

± bundle exec rspec
.F........................

Failures:

  1) Admin::UsersController GET #index returns http success
     Failure/Error: get :index
     NoMethodError:
       undefined method `authenticate!' for nil:NilClass
     # ./app/controllers/admin/application_controller.rb:10:in `authorize_admin!'
     # ./spec/controllers/admin/users_controller_spec.rb:7:in `block (3 levels) in <top (required)>'

Finished in 1.2 seconds (files took 1.86 seconds to load)
26 examples, 1 failure

Failed examples:

rspec ./spec/controllers/admin/users_controller_spec.rb:6 # Admin::UsersController GET #index returns http success

./app/controllers/admin/application_controller.rb 看起来像这样：

class Admin::ApplicationController < ApplicationController
  before_action :authorize_admin!

  def index
  end

  private

  def authorize_admin!
    authenticate_user!

    unless current_user.admin?
      redirect_to root_path, alert: "You must be an admin to do that."
    end
  end
end

./app/controllers/admin/users_controller.rb 看起来像这样：

class Admin::UsersController < Admin::ApplicationController
  def index
    @users = User.order(:email)
  end

  def new
    @user = User.new
  end

  def create
    @user = User.new(user_params)

    if @user.save
      flash[:notice] = "User has been created."
      redirect_to admin_users_path
    else
      flash.now[:alert] = "User has not been created."
      render "new"
    end
  end

  private
    def user_params
      params.require(:user).permit(:email, :password)
    end
end

./spec/controllers/admin/users_controller_spec.rb 看起来像这样：

require 'rails_helper'

RSpec.describe Admin::UsersController, type: :controller do

  describe "GET #index" do
    it "returns http success" do
      get :index
      expect(response).to have_http_status(:success)
    end
  end

end

您可能会告诉我有点超出我的深度，任何解决此问题的帮助将不胜感激。

Answer 1

您是否设置了 rspec 以使用 Devise？

尝试将以下内容添加到 spec/rails_helper.rb

# note: require 'devise' after require 'rspec/rails'
require 'devise'

RSpec.configure do |config|
  #...
  config.include Devise::Test::ControllerHelpers, :type => :controller
  #...
end

Answer 2

使用 RSpec，您可以将以下内容放入名为 spec/support/devise.rb 或您的 spec/spec_helper.rb 的文件中（或 spec/rails_helper.rb，如果您使用的是 rspec-rails）：

RSpec.configure do |config|
  config.include Devise::Test::ControllerHelpers, type: :controller
  config.include Devise::Test::ControllerHelpers, type: :view
end

请确保在 require rspec/rails 指令之后包含此内容。