Generally, you write one unit test per model.

一般情况下，要为每个模型编写一个单元测试。

youdao

We've also done one on the 18-inch Bloodhound model, but it was pressure-fed; it wasn't done using our new pump and that's the point about this upcoming test.

我们还在18英寸的侦探犬模型上进行了一次测试，不过它无法承受其压力；必须有我们的新泵才能进行测试，这就是即将进行的测试的关键。

youdao

The usual programming model with JUnit version 3.8 is to create a test class that extends one of the TestCase classes provided by JUnit.

JUnit版本3.8的常见编程模型是创建测试类，它扩展了JUnit提供的一个testcase类。

youdao

Then to test the model, one would have to have each of those points in the model instrumented.

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