### Question:
TechnicalViewWidget extends BaseViewImpl implements View { @PostConstruct public void init() { initWidget(uiBinder.createAndBindUi(this)); }  @PostConstruct void init(); @Override void init(final BaseViewPresenter presenter); @Override void setContent(final Module activeModule,
                           final FolderListing folderListing,
                           final Map<FolderItem, List<FolderItem>> siblings); @Override void setItems(final FolderListing folderListing); @Override void renderItems(FolderListing folderListing); @Override void showHiddenFiles(final boolean show); @Override void setNavType(Explorer.NavType navType); @Override void hideTagFilter(); @Override void showTagFilter(); @Override void hideHeaderNavigator(); @Override void showHeaderNavigator(); @Override void showBusyIndicator(final String message); @Override void hideBusyIndicator(); @Override void showContent(final boolean isVisible); @Override Explorer getExplorer(); void onTagChanged(@Observes TagChangedEvent event);  }### Answer:
@Test public void testInit() throws Exception { final BaseViewPresenter presenter = mock(BaseViewPresenter.class); technicalViewWidget.init(presenter); verify(explorer).init( any(NavigatorOptions.class), eq(Explorer.NavType.BREADCRUMB), eq(presenter)); }