PowerMockito.when用于匿名内部类的新模拟

Question

我有要进行单元测试的课程

public class ToTestClass {
  public void static toTestMethod() {
    new ObjectICanMock().post(new Runnable() {
      @Override
      public void run() {
        ConstructorToMock obj = new ConstructorToMock(); // Need to mock this
        //do something with obj
      }
    });
  }
}

上述Java类的我的JUnit测试类

@RunWith(PowerMockRunner.class)
@PrepareForTest({ToTestCLass.class, <?**innerClass**?>})
public class ToTestClassTest {

  @Test
  public void toTestMethodTest() {
    ArgumentCaptor<Runnable> runner = ArgumentCaptor.forClass(Runnable.class);
    ObjectICanMock objectICanMock = mock(ObjectICanMock.class);
    ConstructorToMock constructorToMock = mock(ConstructorToMock.class);

    whenNew(ObjectICanMock.class)
           .withAnyArguments().thenReturn(objectICanMock);
    // The below line doesnot work and in real method the mocked object is required.
    whenNew(ConstructorToMock.class)
           .withAnyArguments().thenReturn(constructorToMock);        

    ToTestClass.toTestMethod(); //call method
    verify(objectIcanMock).post(runner.capture());
    Runnable capturedRunner = runner.getValue();
    capturedRunner.run();// call that inner method

    //asserts and verifys
  }
}

问题在于，我需要在重新实例化时对ConstructorToMock类进行模拟

我能够找到run方法并调用它。为了进行模拟，我需要将定义的匿名Runnable类（即ToTestClass$1放入PrepareForTest数组中，就像我为ObjectICanMock类模拟了新实例一样