希望在rails中进行2.2.2的单元测试，但失败了。有人能告诉我原因并帮我找到解决办法吗？

Question

我遵循的敏捷Web开发与Rails，第三版第14章。

我在windows中使用命令行并输入以下命令：D:\InstantRails-2.0-win\rails_apps\GraduateDesign\depot>ruby -I test/unit/ product_test.rb

错误消息显示如下：

D:/InstantRails-2.0-win/rails_apps/GraduateDesign/depot/app/controllers/users_co
ntroller.rb:48: warning: don't put space before argument parentheses
D:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activesupport-2.2.2/lib/acti
ve_support/dependencies.rb:445:in `load_missing_constant': uninitialized constan
t RUBY_COPYRIGHT (NameError)
        from D:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activesupport-2
.2.2/lib/active_support/dependencies.rb:77:in `const_missing'
        from D:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activesupport-2
.2.2/lib/active_support/dependencies.rb:89:in `const_missing'
        from D:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/rbx-require-rel
ative-0.0.9/lib/require_relative.rb:51
        from D:/InstantRails-2.0-win/ruby/lib/ruby/site_ruby/1.8/rubygems/custom
_require.rb:36:in `gem_original_require'
        from D:/InstantRails-2.0-win/ruby/lib/ruby/site_ruby/1.8/rubygems/custom
_require.rb:36:in `require'
        from D:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activesupport-2
.2.2/lib/active_support/dependencies.rb:155:in `require'
        from D:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/linecache-0.45-
x86-mswin32/lib/linecache.rb:66
        from D:/InstantRails-2.0-win/ruby/lib/ruby/site_ruby/1.8/rubygems/custom
_require.rb:31:in `gem_original_require'
         ... 16 levels...
        from D:/InstantRails-2.0-win/ruby/lib/ruby/gems/1.8/gems/activesupport-2
.2.2/lib/active_support/dependencies.rb:155:in `require'
        from D:/InstantRails-2.0-win/rails_apps/GraduateDesign/depot/test/test_h
elper.rb:3
        from test/unit/product_test.rb:1:in `require'
        from test/unit/product_test.rb:1

Answer 1

我不认为这是导致错误的原因，但您可能会检查它，以防您忽略它。

错误的第一行如下：

warning: don't put space before argument parentheses 48号线在users_controller.rb。

Answer 2

错误消息的重要部分是rails找不到RUBY_COPYRIGHT常量。这个常量从1.8.7开始就是红宝石本身的一部分，所以我认为你使用的是旧的东西。

既然如此，你应该好好想想

1. 更新您的Ruby。当前版本为1.9.3
2. ，使用更新的Rails。版本2.2.2是严重过时的版本。3.2.2.

中的Th当前版本

如果您的书/文档坚持使用这些旧版本，您应该找到一本更好的书，尤其是当您第一次学习Rails时。自从Ruby1.8.6和Rails 2.2以来，情况发生了很大的变化。带有Rails的敏捷Web开发的第四版涵盖Rails 3。