我还有最后一节课,大概是这样的:

public final class RainOnTrees{

   public void startRain(){

        // some code here
   }
}

我在其他一些类中使用这个类,像这样:

public class Seasons{

   RainOnTrees rain = new RainOnTrees();

   public void findSeasonAndRain(){

        rain.startRain();

    }
}

在我的JUnit测试类Seasons.java中,我想模拟RainOnTrees类。我怎么能用Mockito做到这一点?


当前回答

是的,同样的问题在这里,我们不能模拟一个最终类与Mockito。准确地说,Mockito不能模仿/监视以下内容:

最后的课程 匿名类 原始类型

但是在我看来,使用包装器类代价很大,所以改用PowerMockito。

其他回答

Mockito 2现在支持final类和方法!

但就目前而言,这只是一个“孵化”功能。它需要一些步骤来激活它,这些步骤在Mockito 2中的新内容中描述:

Mocking of final classes and methods is an incubating, opt-in feature. It uses a combination of Java agent instrumentation and subclassing in order to enable mockability of these types. As this works differently to our current mechanism and this one has different limitations and as we want to gather experience and user feedback, this feature had to be explicitly activated to be available ; it can be done via the mockito extension mechanism by creating the file src/test/resources/mockito-extensions/org.mockito.plugins.MockMaker containing a single line: mock-maker-inline After you created this file, Mockito will automatically use this new engine and one can do : final class FinalClass { final String finalMethod() { return "something"; } } FinalClass concrete = new FinalClass(); FinalClass mock = mock(FinalClass.class); given(mock.finalMethod()).willReturn("not anymore"); assertThat(mock.finalMethod()).isNotEqualTo(concrete.finalMethod()); In subsequent milestones, the team will bring a programmatic way of using this feature. We will identify and provide support for all unmockable scenarios. Stay tuned and please let us know what you think of this feature!

对于最终类,添加以下内容以模拟和调用静态或非静态。

1-添加到职业等级 @SuppressStatucInitializationFor(value ={带有包的类名}) PowerMockito.mockStatic(classname.class)将模拟类 3-然后使用你的when语句在调用这个类的方法时返回模拟对象。

享受

没有尝试final,但私有,使用反射删除修饰符工作!已经进一步检查,它不为最终工作。

我来跟进一下。请将这一行添加到您的gradle文件:

testCompile group: 'org.mockito', name: 'mockito-inline', version: '2.8.9'

我尝试了不同版本的mockito-core和mockito-all。他们都不工作。

是的,同样的问题在这里,我们不能模拟一个最终类与Mockito。准确地说,Mockito不能模仿/监视以下内容:

最后的课程 匿名类 原始类型

但是在我看来,使用包装器类代价很大,所以改用PowerMockito。