Summary: If you have not already done so, delegate some or all of your advice logic to another class that you can test directly.

概述：如果还没有做的话，可以将一些或者全部建议逻辑委派给其他可以直接测试的类。

youdao

Personally I like the idea of keeping all the data access logic encapsulated in that class.

我个人倾向于将所有的数据访问逻辑封装到这个类中。

youdao

Design by Contract lets the class designer concentrate on the logic that implements the class functionality without worrying about the validity of arguments.

契约式设计让类的设计者专注于实现了类的功能性的逻辑，而不用担心实参的有效性。

youdao

The class was Logic, in Cellblock 2, thirteen of us seated along both sides of a long table, with Ilgauskas at the head, a stocky man, late forties, beset this day by periodic coughing.

NEWYORKER: Midnight in Dostoevsky

Although Air Force One's operating costs per person far exceed the cost of even a first-class commercial ticket, the logic is that it's unfair to charge the president's campaign for the full cost of operating Air Force One because he has no choice but to fly on the presidential plane for security reasons.

CNN: The perks of presidential travel