@Test public void testThatPromptPresenterPassesReceivedEventsToExtraEventListeners() { // Arrange final IEventListener extraMockEventListener = mock(IEventListener.class); promptPresenter.addPromptEventListener(extraMockEventListener); final IEvent mockEvent = mock(IEvent.class); // Act promptPresenter.notifyEventTriggered(mockEvent); // Assert verify(extraMockEventListener).notifyEventTriggered(mockEvent); }