Before looking at the test code, you need a better understanding of the Rails user interface layer.
在查看测试代码之前，需要对Rails的用户界面层有更好的理解。
The goal was to have a proper separation of concerns for each layer of the application -- i.e., the business logic remains in the implementation layer, the UI in the user interface layer, etc.
目标是适当地分离与应用程序每一层相关的问题 ——也就是，业务逻辑仍旧在实现层，UI 在用户界面层，等等。
NET to connect the user interface layer and data layer.
NET连接用户界面层和数据层。
The component belongs to middle layer of 3-tiered architecture, which separates user interface layer and database system, with clear logic and powerful reusable features.
组件在三层体系构架中处于中间层，隔离了用户界面层和数据库系统，逻辑清晰，可重用性强。
The User Interface layer runs in the web tier.
用户界面层在Web 层中运行。
Table 1: User Interface Layer (Partial Sample).
表1：用户界面层(部分示例)。
In other words, it just reflects the state of the User Interface layer.
换句话说，它仅仅反映用户界面层的状态。
In other words, it just reflects the state of the User Interface layer.
换句话说，它仅仅反映用户界面层的状态。
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