ruby-on-rails – 尝试运行测试时获取未初始化的常量错误

发布时间：2020-12-16 19:47:45 所属栏目：百科来源：网络整理

导读：我刚刚更新了我的所有宝石,我发现我试图运行Test :: Unit测试时会收到错误.我收到下面的错误.这来自于创建新的,空的Rails项目,脚手架一个简单的模型,并运行rake测试. 试图搜索“未初始化常数”和TestResultFailureSupport.我发现唯一的事情是2007年this bug

我刚刚更新了我的所有宝石,我发现我试图运行Test :: Unit测试时会收到错误.我收到下面的错误.这来自于创建新的,空的Rails项目,脚手架一个简单的模型,并运行rake测试.

试图搜索“未初始化常数”和TestResultFailureSupport.我发现唯一的事情是2007年this bug report.

我正在使用OS X.

这些是在测试停止工作之前更新的宝石：

$sudo gem outdated
Password:
RedCloth (4.2.1 < 4.2.2)
RubyInline (3.8.1 < 3.8.2)
ZenTest (4.1.1 < 4.1.3)
bluecloth (2.0.4 < 2.0.5)
capistrano (2.5.5 < 2.5.8)
haml (2.0.9 < 2.2.1)
hoe (2.2.0 < 2.3.2)
json (1.1.6 < 1.1.7)
mocha (0.9.5 < 0.9.7)
rest-client (1.0.2 < 1.0.3)
thoughtbot-factory_girl (1.2.1 < 1.2.2)
thoughtbot-shoulda (2.10.1 < 2.10.2)

有没有人看到这个问题？任何故障排除建议？

UPDATE

在预感中,我将ZenTest从4.1.3降级到4.1.1,现在一切都重新起作用.

仍然好奇地知道有没有人看过这个或有任何有趣的意见或见解.

$rake test
(in /Users/me/foo)
/usr/local/bin/ruby -I"lib:test" "/usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake/rake_test_loader.rb" "test/unit/helpers/users_helper_test.rb" "test/unit/user_test.rb" 
/usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:105:in `const_missing': uninitialized constant Test::Unit::TestResult::TestResultFailureSupport (NameError)
    from /usr/local/lib/ruby/gems/1.8/gems/test-unit-2.0.2/lib/test/unit/testresult.rb:28
    from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
    from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
    from /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:158:in `require'
    from /usr/local/lib/ruby/gems/1.8/gems/test-unit-2.0.2/lib/test/unit/ui/testrunnermediator.rb:9
    from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
    from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
    from /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.2/lib/active_support/dependencies.rb:158:in `require'
     ... 6 levels...
    from /usr/local/lib/ruby/1.8/test/unit/autorunner.rb:214:in `run'
    from /usr/local/lib/ruby/1.8/test/unit/autorunner.rb:12:in `run'
    from /usr/local/lib/ruby/1.8/test/unit.rb:278
    from /usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake/rake_test_loader.rb:5
/usr/local/bin/ruby -I"lib:test" "/usr/local/lib/ruby/gems/1.8/gems/rake-0.8.7/lib/rake/rake_test_loader.rb" "test/functional/users_controller_test.rb"

解决方法

如果模块在嵌套在其中的父模块尚未加载时在单个语句中声明,则可能会发生这种情况.我没有看过这些宝石的代码,但是我的预感是这是正在发生的事情.查克的解决方案会表明.首先调用gem’test-unit’将加载父模块,所以禅宗测试的设置结束了.

例如

module Foo::Bar
  def do_stuff
    # insert awesomeness here...
  end
end

如果父Foo模块尚未定义(例如由另一个gem),将导致错误

一个更安全的方式来宣布这一点

module Foo
  module Bar
    def do_stuff
      # insert awesomeness here...
    end
  end
end

可能是Zentest中需要修补的错误.

（编辑：李大同）

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