Ruby on rails 3 未找到Rails测试-未定义的局部变量或方法；回应"；

我正试图追随迈克尔·哈特尔，但我遇到了一个在别处找不到解释的错误。在下，我在尝试为试图更新配置文件页面的未登录用户运行测试时出错

describe "submitting to the update action" do
  before { put user_path(user) }
  specify { response.should redirect_to(signin_path) }
end

我得到的错误是“未定义的局部变量或#（namererror）的方法‘response’”。这是对“bundle exec rspec spec/”的响应。当我注释掉有问题的行时，所有测试都实例化并通过。我试着用“response.body”和“page”来代替“response”，但这两个词似乎都没用

我不确定问题出在哪里，因为在我继续学习教程的过程中，类似的模块正在顺利通过

以下是完整的错误文本：

C:\Ruby193\bin\ruby.exe -e $stdout.sync=true;$stderr.sync=true;load($0=ARGV.shift) C:\Ruby193\bin\rake spec
Testing started at 7:39 PM ...
C:/Ruby193/bin/ruby.exe -S rspec ./spec/models/user_spec.rb ./spec/requests/authentication_pages_spec.rb ./spec/requests/static_pages_spec.rb ./spec/requests/user_pages_spec.rb
Rack::File headers parameter replaces cache_control after Rack 1.5.
C:/Users/Jeff/Documents/rails_projects/sample_app/spec/requests/authentication_pages_spec.rb:60:in `block (5 levels) in <top (required)>': undefined local variable or method `response' for #<Class:0x4894908> (NameError)
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-core-2.12.2/lib/rspec/core/example_group.rb:244:in `module_eval'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-core-2.12.2/lib/rspec/core/example_group.rb:244:in `subclass'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-core-2.12.2/lib/rspec/core/example_group.rb:230:in `describe'
    from C:/Users/Jeff/Documents/rails_projects/sample_app/spec/requests/authentication_pages_spec.rb:58:in `block (4 levels) in <top (required)>'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-core-2.12.2/lib/rspec/core/example_group.rb:244:in `module_eval'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-core-2.12.2/lib/rspec/core/example_group.rb:244:in `subclass'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-core-2.12.2/lib/rspec/core/example_group.rb:230:in `describe'
    from C:/Users/Jeff/Documents/rails_projects/sample_app/spec/requests/authentication_pages_spec.rb:51:in `block (3 levels) in <top (required)>'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-core-2.12.2/lib/rspec/core/example_group.rb:244:in `module_eval'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-core-2.12.2/lib/rspec/core/example_group.rb:244:in `subclass'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-core-2.12.2/lib/rspec/core/example_group.rb:230:in `describe'
    from C:/Users/Jeff/Documents/rails_projects/sample_app/spec/requests/authentication_pages_spec.rb:48:in `block (2 levels) in <top (required)>'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-core-2.12.2/lib/rspec/core/example_group.rb:244:in `module_eval'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-core-2.12.2/lib/rspec/core/example_group.rb:244:in `subclass'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-core-2.12.2/lib/rspec/core/example_group.rb:230:in `describe'
    from C:/Users/Jeff/Documents/rails_projects/sample_app/spec/requests/authentication_pages_spec.rb:46:in `block in <top (required)>'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-core-2.12.2/lib/rspec/core/example_group.rb:244:in `module_eval'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-core-2.12.2/lib/rspec/core/example_group.rb:244:in `subclass'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-core-2.12.2/lib/rspec/core/example_group.rb:230:in `describe'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-core-2.12.2/lib/rspec/core/dsl.rb:18:in `describe'
    from C:/Users/Jeff/Documents/rails_projects/sample_app/spec/requests/authentication_pages_spec.rb:3:in `<top (required)>'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active_support/dependencies.rb:245:in `load'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active_support/dependencies.rb:245:in `block in load'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active_support/dependencies.rb:236:in `load_dependency'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/activesupport-3.2.11/lib/active_support/dependencies.rb:245:in `load'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-core-2.12.2/lib/rspec/core/configuration.rb:789:in `block in load_spec_files'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-core-2.12.2/lib/rspec/core/configuration.rb:789:in `each'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-core-2.12.2/lib/rspec/core/configuration.rb:789:in `load_spec_files'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-core-2.12.2/lib/rspec/core/command_line.rb:22:in `run'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-core-2.12.2/lib/rspec/core/runner.rb:80:in `run'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/rspec-core-2.12.2/lib/rspec/core/runner.rb:17:in `block in autorun'
rake aborted!
C:/Ruby193/bin/ruby.exe -S rspec ./spec/models/user_spec.rb ./spec/requests/authentication_pages_spec.rb ./spec/requests/static_pages_spec.rb ./spec/requests/user_pages_spec.rb failed
-e:1:in `load'
-e:1:in `<main>'
Tasks: TOP => spec
(See full trace by running task with --trace)

Process finished with exit code 1
Empty test suite.

---

你正在运行哪种版本的水豚

$ bundle exec gem list | grep capybara

如果您运行的是版本

>=2.0

，则应再次查看您的GEM文件，并明确标记该版本与教程相同（

1.1.2

）

Gemfile

group :test do
  gem 'capybara', '1.1.2'
end

如果您非常想使用最新版本，则必须进行一些更改，如以下问题与解答所述：

更新 好吧，你会踢自己，但是在克隆你的回购协议并得到同样的错误后，你的问题很明显（语法突出显示是你的朋友）：

关于你有：

specify ( response.should redirect_to(signin_path) )

应该是：

specify { response.should redirect_to(signin_path) }

---

修复后，您的测试将通过。

坚持使用此处指定的gem版本：我复制了源gem文件，但仍然出现此错误。这并不能回答您的问题，但是我只是因为一个不同的原因收到了相同的错误消息，所以我为其他有相同问题的人发布了这个消息：我忘记了包含行

subject{page}

。哦！根据教程中的Gemfile，仍然是1.1.2版吗？您是否有一个Github repo，其中包含您正在使用的代码版本？考虑到您说“显然

have_selector（'title'），…）

不再是有效语法”，我认为您在第一次运行

bundle install

并获得Capybara版本2时没有指定Capybara版本。如果是这种情况，并且您稍后又更改回1.1.2版，您是否再次运行了

捆绑安装

？我仔细检查了一遍，重新运行了

捆绑安装

，仍然显示错误。

specify { response.should redirect_to(signin_path) }