We can consider the performance test to be based on a regular usage scenario, and extend to the large data test set imposing some extreme loads.

可以根据常规的使用场景考虑性能测试，然后扩展到模拟某些极端负载的大型测试数据集。

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This is because data set by one test is not visible to other tests, even if the other test contains a variable with the same name.

这是因为一个测试所设置的数据对其他测试来说是不可见的，就算其他的测试也包含有相同名字的变量也是这样。

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Set up test data in the database.

在数据库中建立测试数据。

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Once a model is created, data scientists ideally will begin working with others to help test the models and set them in motion toward commercial application.

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