ruby-on-rails - 在 RoR 应用程序中使用 RSpec 进行测试 - 未初始化的常量

Question

我正在尝试通过 RSpec 测试我的 Rails 3.2.3 应用程序。它已安装(我已经测试了另一个应用程序并且运行良好)但它不存在于 Gemfile 中。这是spec/application_controller_spec.rb的代码

    require "rspec"
    require_relative "../app/controllers/application_controller"

    describe ApplicationController do
      it "current_cart does something" do
        #app_controller  = ApplicationController.new
        pending
      end
    end

以下命令返回错误:

alex@ubuntu:~/RubymineProjects/psg$ rspec spec
/home/alex/RubymineProjects/psg/app/controllers/application_controller.rb:1:in `<top (required)>': uninitialized constant ActionController (NameError)
    from /home/alex/RubymineProjects/psg/spec/application_controller_spec.rb:2:in `require_relative'
    from /home/alex/RubymineProjects/psg/spec/application_controller_spec.rb:2:in `<top (required)>'
    from /home/alex/.rvm/gems/ruby-1.9.3-p194/gems/rspec-core-2.11.1/lib/rspec/core/configuration.rb:780:in `load'
    from /home/alex/.rvm/gems/ruby-1.9.3-p194/gems/rspec-core-2.11.1/lib/rspec/core/configuration.rb:780:in `block in load_spec_files'
    from /home/alex/.rvm/gems/ruby-1.9.3-p194/gems/rspec-core-2.11.1/lib/rspec/core/configuration.rb:780:in `map'
    from /home/alex/.rvm/gems/ruby-1.9.3-p194/gems/rspec-core-2.11.1/lib/rspec/core/configuration.rb:780:in `load_spec_files'
    from /home/alex/.rvm/gems/ruby-1.9.3-p194/gems/rspec-core-2.11.1/lib/rspec/core/command_line.rb:22:in `run'
    from /home/alex/.rvm/gems/ruby-1.9.3-p194/gems/rspec-core-2.11.1/lib/rspec/core/runner.rb:69:in `run'
    from /home/alex/.rvm/gems/ruby-1.9.3-p194/gems/rspec-core-2.11.1/lib/rspec/core/runner.rb:8:in `block in autorun'

文件 ApplicationController.rb

 class ApplicationController < ActionController::Base
   def some_action
     #............
   end

结尾

即使我添加 gem 'rspec'在 Gemfile 中它不会改变任何东西，错误仍然存​​在。

有什么想法吗？

Answer 1

就我而言，我需要添加 rails_helper到规范文件或 .rspec文件。

require 'spec_helper'
require 'rails_helper'

describe SomeController do
end

# Or in the .rspec file:
--color
--require spec_helper
--require rails_helper