把组件增加到显示列表以进行测试——这一步启动了组件的内部生命周期，以便对其方法进行真正测试。
Add the component to the display list for testing - This step starts the internal life cycle of the components, which is needed for real testing of its methods.
要这样做，将它们的标题增加到在修改版本许可声明中的恒常章节列表中。
To do this, add their titles to the list of Invariant Sections in the Modified Version's license notice.
这里也是一半测试框架做不到的地方，因为它们实际上不允许把UIComponent增加到显示列表进行测试。
This is also the point at which half of the testing frameworks fail, because they don't actually allow you to add UIComponent to the display list for testing.
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