Mockito - 奇怪的包范围类继承问题

发现非常有趣的问题,并在调试后发现了重现它的场景.

所以,如果我有一个包含范围B的类,它有一些公共方法,公共类A扩展它:

package somepackage;

class B {
   public void someMethod() {
      throw NullPointerException();
   }
}

package somepackage;
public class A extends B {

}

然后在测试中:

A a = mock(A.class);
a.someMethod();

并猜测是什么,我得到了刚刚扔的NullPointerException,所以Mockito以某种方式创建了一个"真正的"对象并调用了一个真正的方法而不是模拟的方法.为什么这样？

java.lang.IllegalArgumentException
    at test.B.setProxy(B.java:6)
    at test.A.setProxy(A.java:1)
    at secretservice.service.TestFDSServiceImpl.testService(TestFDSServiceImpl.java:17)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    at java.lang.reflect.Method.invoke(Method.java:597)
    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:45)
    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:42)
    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)
    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)
    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)
    at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)
    at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)
    at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)
    at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)
    at org.junit.runners.ParentRunner.run(ParentRunner.java:300)
    at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

在上面的示例中,我IllegalArgumentException在课堂上更改了它,B以确保NullPointerException不是由其他内容引起的.

Eclipse:Juno Service Release 1,build id:20120920-0800 Mockito:1.8.4(也测试了1.9.5)JUnit:4.10