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