### Question:
ProviderTypeNavigationPresenter { public void clear() { view.clear(); } @Inject  ProviderTypeNavigationPresenter(final View view,
                                           final Event<AddNewProviderTypeEvent> addNewProviderTypeEvent,
                                           final Event<ProviderTypeListRefreshEvent> providerTypeListRefreshEvent,
                                           final Event<ProviderTypeSelectedEvent> providerTypeSelectedEvent); @PostConstruct void init(); void setup(final ProviderType firstProvider,
                      final Collection<ProviderType> providerTypes); View getView(); void clear(); void onRefresh(); void onAddProviderType();  }### Answer:
@Test public void testClear() { presenter.clear(); verify(view, times(1)).clear(); }