Kotlin 调用单元测试验证伴随对象方法

当切换到Kotlin时，静态方法会被移动到一个伴随对象中.然而，没有明显的方法来单元测试其他称为"静态方法"的方法.

在Java中，我们可以使用PowerMockito的MockStatic(SomeClass.class)来验证在测试的方法中调用了静态方法.PowerMock在Kotlin 失go 了魔力.

为了进行测试，我创建了以下类.

public class DummyJava {
    static public Void staticMechod(){
          System.out.print("Dummy method is called");
          return null;
     }
}

class DummyCompanion {
    companion object {
        fun someCompanionMethod(){
            System.out.printf("companion method is called\n")
        }
    }
}

现在还有一个叫做DummyCompanion.someCompanion的类

public class DummyWrapper {
    public void callAStaticMethod(){
        DummyJava.staticMechod();
    }

    public void callCompanionMethod(){
        DummyCompanion.Companion.someCompanionMethod();
    }
}

为了单元测试callAStaticMethod()，我们使用了以下方法

@RunWith(PowerMockRunner.class)
@PrepareForTest({DummyJava.class, DummyCompanion.Companion.class})
public class staticClassTest {
    //This case works
    @Test 
    public void testForStaticMethod() {
        PowerMockito.mockStatic(DummyJava.class);   
        DummyWrapper testObject = new DummyWrapper();

        Mockito.when(DummyJava.staticMechod()).thenCallRealMethod();

        testObject.callAStaticMethod();

        PowerMockito.verifyStatic(Dummy.class);
        DummyJava.staticMechod();
    }

    //This case doesn't work. It always passes.
    @Test
    public void testForCompanionMethod() {
        PowerMockito.mockStatic(DummyCompanion.Companion.class);
        DummyWrapper testObject = new DummyWrapper();
        testObject.callCompanionMethod();
PowerMockito.verifyStatic(DummyCompanion.Companion.class,Mockito.times(1));
        DummyCompanion.Companion.someCompanionMethod();
}

我的问题是如何验证同伴方法是否被调用.