GuidedTourServiceEnvelope implements GuidedTourService { @Override public void registerTutorial(final Tutorial tutorial) { getNativeEnvelope().registerTutorial(tutorial); }  @Override void refresh(final UserInteraction userInteraction); @Override void registerTutorial(final Tutorial tutorial); @Override boolean isEnabled();  }
@Test public void testRegisterTutorial() { final Tutorial tutorial = mock(Tutorial.class); envelope.registerTutorial(tutorial); verify(nativeEnvelope).registerTutorial(tutorial); }