This step is purely optional and is to be used for testing purposes only.

该步骤纯粹是可选的，并且将仅用于测试目的。

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Please note that the test server is not regularly updated with signatures and is for testing purposes only.

测试服务器不具备常规升级病毒库，仅用于测试。

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The only added complexity comes in instantiating all the necessary objects for testing purposes.

唯一增加的复杂性来自于，为嵌套目的实例化了所有必需的对象。

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