### Question:
KogitoKieAssetsDropdownView extends KieAssetsDropdownView implements KogitoKieAssetsDropdown.View { @Override public void enableDropdownMode() { nativeSelect.classList.remove(HIDDEN_CSS_CLASS); dropdown().selectpicker("show"); } @Inject  KogitoKieAssetsDropdownView(final HTMLSelectElement nativeSelect,
                                       final HTMLOptionElement htmlOptionElement,
                                       final TranslationService translationService); @Override void initialize(); @Override String getValue(); @Override void enableDropdownMode();  }### Answer:
@Test public void testEnableDropdownMode() { nativeSelect.classList = mock(DOMTokenList.class); view.enableDropdownMode(); verify(nativeSelect.classList).remove(HIDDEN_CSS_CLASS); verify(dropdown).selectpicker("show"); }