Question

运行一些单元测试（使用Ruby / Rails中包含的Test :: Unit模块）调用使用某些SettingsLogic功能的方法时出现此错误：

RuntimeError：被调用的id为nil，如果你的话，它将错误地为4 真的想要nil的id，使用的object_id

更具体地说，我已经编写了一些单元测试，以便在我的模型中测试一些方法。这些方法使用SettingsLogic功能，但似乎这里发生了错误。我运行测试控制台并检查是否已定义Settings类。但是，我无法访问我的设置值哈希。

script/console test
Loading test environment (Rails 2.3.10)
DEPRECATION WARNING: require "activesupport" is deprecated and will be removed in Rails 3. Use require "active_support" instead. (called from /var/lib/gems/1.8/gems/activesupport-2.3.10/lib/activesupport.rb:2)
>> Settings
=> Settings
>> Settings.blah
RuntimeError: Called id for nil, which would mistakenly be 4 -- if you really wanted the id of nil, use object_id
    from (erb):32
>> exit

在开发环境中，我得到：

script/console
Loading development environment (Rails 2.3.10)
>> Settings
=> Settings
>> Settings.blah
=> {"gadget_type"=>{"alarm_history_table"=>{"max_printable_rows"=>200, "max_visible_rows"=>14, "_id"=>5, "rows_per_page"=>100}, "text"=>{"_id"=>2}, "current_state_table"=>{"max_printable_rows"=>200, "max_visible_rows"=>14, "_id"=>1, "rows_per_page"=>10}, "column_based_history_table"=>{"max_printable_rows"=>200, "max_visible_rows"=>14, "_id"=>6, "rows_per_page"=>100, "related_states"=>{"unit"=>17, "description"=>49}}, "entity_history_table"=>{"max_printable_rows"=>200, "max_visible_rows"=>14, "_id"=>4, "rows_per_page"=>100}, "chart"=>{"_id"=>3}, "access_type"=>{"url"=>1, "file"=>2}}}
>> exit

我正在手动运行测试，即没有使用rake测试但是使用ruby unit/my_model_test.rb

settings.rb模型如下：

class Settings < Settingslogic
  source "#{Rails.root}/config/application.yml"
  namespace Rails.env
end

application.yml设置文件：

defaults: &defaults
  blah:
    gadget_type:
      access_type:
        url: 1
        file: 2
      current_state_table:
        _id: 1
        max_visible_rows: 14
        rows_per_page: 10
        max_printable_rows: 200
      text:
        _id: 2
      chart:
        _id: 3
      entity_history_table:
        _id: 4
        max_visible_rows: 14
        rows_per_page: 100
        max_printable_rows: 200
      alarm_history_table:
        _id: 5
        max_visible_rows: 14
        rows_per_page: 100
        max_printable_rows: 200
      column_based_history_table:
        _id: 6
        max_visible_rows: 14
        rows_per_page: 100
        max_printable_rows: 200
        related_states:
          description: <%= Property.find_by_name('description').id %>
          unit:  <%= Property.find_by_name('units').id %>

development:
  <<: *defaults

test:
  <<: *defaults

production:
  <<: *defaults

RUBY VERSION：ruby 1.8.7（2010-06-23 patchlevel 299）[i686-linux]
铁路版本：2.3.10
设置逻辑：2.0.6
谢谢！！

Answer 1

<强>固定

问题在于yaml中的嵌入式ruby：

Property.find_by_name('description').id

我没有属性固定装置因此失败了。

在Rails 2.3中运行单元测试时，SettingsLogic无法正常工作

1 个答案: