### Question:
DNDListDOMHelper { static void setCSSPaddingLeft(final HTMLElement element, final int value) { element.style.setProperty("padding-left", value + "px"); }   static final String DRAGGING; }### Answer:
@Test public void testSetCSSPaddingLeft() { element.style = mock(CSSStyleDeclaration.class); setCSSPaddingLeft(element, 321); verify(element.style).setProperty("padding-left", "321px"); }