The test cases are written first, and implementation proceeds by writing code to satisfy each test case.

将首先编写测试用例，然后将通过编写满足各个测试用例的代码来进行实现。

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Once you've written the first test, you can often develop more tests very quickly from the same framework. This is where fixtures come in handy.

一旦编写了第一个测试，您就能够经常快速地从同一个框架下开发更多的测试。

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When tests are written often (note, I'm not implying first), developers have the tendency to write uncomplicated code because complicated code is hard to test.

在编写测试时(注意，我没有暗示是第一次)，开发人员通常倾向于编写不太复杂的代码，因为复杂的代码难以测试。

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The state requires passing a written test, first aid training and proof of having made at least five trips on the whitewater river someone wants to guide.

WSJ: NY judge says rafter broke guide licensing laws