Let's use a trait to separate the callback handling from the button logic.

让我们对按钮的逻辑来使用trait，从而分离回调的处理。

youdao

The logic for the type of button and the event handler to be invoked is contained in this method, shown in Listing 15.

被调用的按钮和事件处理程序的类型的逻辑包含在此方法中，如清单 15 所示。

youdao

So the UI test automation will not catch the logic error if the application has the wrong method wired to a button click event (although every test would fail and you'd find the problem quickly).

所以如果应用程序为按钮单击事件关联了错误的方法，UI测试自动化不会捕捉到逻辑错误(虽然每次测试都会失败，而且您会很快发现问题)。

youdao