如何在Mockito中模拟instanceof [英] How to Mock instanceof in Mockito

问题描述

我有一段代码，我想用Mockito测试一下:

I have a piece of code, what I want test with Mockito:

mockedClass instanceof SampleInterface

mockedClass是模拟的抽象类:MockedClass，而SampleInterface是一个Interface.这是失败的地方:

The mockedClass is mocked abstract class: MockedClass , and the SampleInterface is an Interface. This is the failing point:

Validate.isTrue(mockedClass instanceof SampleInterface, "The mockedClass is not a SampleInterface");

如何模拟此代码?

推荐答案

听起来您需要

It sounds like you need MockSettings.extraInterfaces.

MockedClass mockedClass = mock(MockedClass.class,
    withSettings().extraInterfaces(SampleInterface.class));

请注意，它带有自己的警告标签:

Note that it comes with its own warning label:

此神秘功能应经常使用.被测对象应确切知道其合作者和合作伙伴.依赖关系.如果您碰巧经常使用它，请确保您确实在生产简单，整洁的产品.可读的代码.

This mysterious feature should be used very occasionally. The object under test should know exactly its collaborators & dependencies. If you happen to use it often than [sic] please make sure you are really producing simple, clean & readable code.

作为替代方案，创建一个用于测试的接口，以扩展您要模拟实现的所有接口，并以通常的方式进行模拟.

As an alternative, create an interface for testing that extends all of the interfaces you want your mock to implement, and mock that the usual way.

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