rspec 模拟“未定义的方法‘stub_model’”对于#<类 ：0x007ff9c339bd80>（无方法错误）”

Question

我正在使用 Rails 3.1，我想在我的规范中添加一些存根和模拟，但我得到了 NoMethodError：

undefined method `stub_model' for #<Class:0x007ff9c339bd80> (NoMethodError)

这是我的 GemFile 的摘录：

gem 'rspec'
gem 'rspec-rails'

我运行了捆绑安装和rails g rspec：安装

这是尝试执行以下操作的代码：创建一个stub_model

  0     @flight = stub_model(Flight)
  1     Flight.stub! (:all).and_return([@flight])

这是spec_helper.rb：

  0 # This file is copied to spec/ when you run 'rails generate rspec:install'
  1 ENV["RAILS_ENV"] ||= 'test'
  2 require File.expand_path("../../config/environment", __FILE__)
  3 require 'rspec/rails'
  4 
  5 # Requires supporting ruby files with custom matchers and macros, etc,
  6 # in spec/support/ and its subdirectories.
  7 Dir[Rails.root.join("spec/support/**/*.rb")].each {|f| require f}
  8   
  9 RSpec.configure do |config|
 10   # == Mock Framework
 11   #
 12   # If you prefer to use mocha, flexmock or RR, uncomment the appropriate line:
 13   #
 14   # config.mock_with :mocha
 15   # config.mock_with :flexmock
 16   # config.mock_with :rr
 17   config.mock_with :rspec
 18 
 19   # Remove this line if you're not using ActiveRecord or ActiveRecord fixtures
 20   config.fixture_path = "#{::Rails.root}/spec/fixtures"
 21     
 22   # If you're not using ActiveRecord, or you'd prefer not to run each of your
 23   # examples within a transaction, remove the following line or assign false
 24   # instead of true.
 25   config.use_transactional_fixtures = true
 26 end 

我正在调用“rspec ./spec”和“bundle exec rspec ./spec”（都尝试过，没有区别

）我所做的似乎是教科书（事实上，我正在遵循 The Rails 3 Way）。

我缺少什么？

Answer 1

您的原始代码很可能是在规范示例之外运行的。这将给出您所描述的错误：

class Foo; end
describe Foo do
  @foo = stub_model(Foo)
  Foo.stub!(:all).and_return([@foo])
end

但这将起作用：

class Foo; end
describe Foo do
  before do
    @foo = stub_model(Foo)
    Foo.stub!(:all).and_return([@foo])
  end
end

Answer 2

请参阅原始问题中的评论。就像我脖子上的一个坏结一样，它似乎已经自行解决了。