### Question:
DNDListDOMHelper { static HTMLElement asNonDragging(final HTMLElement element) { element.classList.remove(DRAGGING); return element; }   static final String DRAGGING; }### Answer:
@Test public void testAsNonDragging() { element.classList = mock(DOMTokenList.class); final HTMLElement actual = asNonDragging(element); final HTMLElement expected = element; verify(element.classList).remove(DRAGGING); assertEquals(expected, actual); }