The first step in TDD is to describe the required behavior in the form of an executable example.

TDD的第一个步骤是使用可执行示例的形式描述所需行为。

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As you can see, I've coded the minimum amount of a stack so I can start fleshing out the required behavior first.

可以看到，我编写了一个最简单的栈，以便首先添加必需的行为。

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After this setting is changed (either enabled or disabled), you must restart the servers before the required behavior is adopted.

在改变该设置后(已启用或未启用)，您必须重启服务器。

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Figuring out if their online social commitments impact their offline behavior required another step.

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Called Enhanced Standards of Conduct, the new guidelines given to all Secret Service personnel make clear that standards of behavior required in the United States apply on missions abroad, the sources said.

CNN: New investigation launched into prostitution scandal

No additional API adoption is required to obtain this behavior, and all existing APIs-including that of the UIPopoverController instance provided by the delegate-will continue to work as before.

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