RSpec - 未定义方法“键?”

RSpec - Undefined method `key?'

我正在尝试 运行 测试渲染模板和 运行 进入错误:

undefined method `key?' for 1014:Fixnum

我的模型实例的存根在我的路由测试中可以正常工作,但在这里却不尽如人意。我做错了什么?

describe RestaurantsController do
  let(:restaurant) { FactoryGirl.build_stubbed(:restaurant) }

  describe 'GET #show' do
    before { get :show, restaurant.id }

    it { should render_template('show') }
  end
end

完全错误

 1) RestaurantsController GET #show 
     Failure/Error: before { get :show, restaurant.id }
     NoMethodError:
       undefined method `key?' for 1014:Fixnum
     # /Library/Ruby/Gems/2.0.0/gems/actionpack-4.2.0/lib/action_controller/test_case.rb:744:in `html_format?'
     # /Library/Ruby/Gems/2.0.0/gems/actionpack-4.2.0/lib/action_controller/test_case.rb:598:in `process'
     # /Library/Ruby/Gems/2.0.0/gems/actionpack-4.2.0/lib/action_controller/test_case.rb:65:in `process'
     # /Library/Ruby/Gems/2.0.0/gems/devise-3.5.1/lib/devise/test_helpers.rb:19:in `block in process'
     # /Library/Ruby/Gems/2.0.0/gems/devise-3.5.1/lib/devise/test_helpers.rb:72:in `catch'
     # /Library/Ruby/Gems/2.0.0/gems/devise-3.5.1/lib/devise/test_helpers.rb:72:in `_catch_warden'
     # /Library/Ruby/Gems/2.0.0/gems/devise-3.5.1/lib/devise/test_helpers.rb:19:in `process'
     # /Library/Ruby/Gems/2.0.0/gems/actionpack-4.2.0/lib/action_controller/test_case.rb:505:in `get'
     # ./spec/controllers/restaurants_controller_spec.rb:15:in `block (3 levels) in <top (required)>'

get 采取行动并散列参数(除其他事项外)。它不会隐含地采用模型并将其转换为 { id: model.to_param }.

相反,您需要明确指定参数。

describe RestaurantsController do
  let(:restaurant) { create(:restaurant) }

  subject { response }

  describe 'GET #show' do
    before { get :show, id: restaurant }
    it { should render_template('show') }
  end
end

正如@Зелёный 已经提到的,您需要实际将记录保存到数据库中才能在控制器规范中使用它。

为避免重复问题和测试顺序问题,您应该在每个示例之间清空数据库。 database_cleaner gem 对于该任务非常宝贵。

此外,如果您需要在同一个规范中创建多个记录,您可以在 factory girl 中使用序列:

FactoryGirl.define do
  factory :user do
    email { |n| "test-#{n}@example.com" }
  end
end

gem ffaker 非常适合生成电子邮件、用户名等。

已添加:

您可以通过在 rails_helper:

中包含其方法来为 FactoryGirl 设置快捷方式
RSpec.configure do |config|
  # ...
  config.include FactoryGirl::Syntax::Methods
end

这样您就可以使用 FactoryGirl 方法,而无需像这样键入模块名称:

let(:restaurant) { create(:restaurant) }