### Question:
MobileSeLionElementSet extends BaseMobileSeLionElementSet { public static MobileSeLionElementSet getInstance() { return INSTANCE; } MobileSeLionElementSet(Collection<SeLionElement> elements); static MobileSeLionElementSet getInstance(); @Override List<GUIObjectDetails> getGUIObjectList(List<String> keys);  }### Answer:
@Test public void testGet() { SeLionElementSet elementSet = MobileSeLionElementSet.getInstance(); assertNotNull(elementSet); assertTrue(elementSet.size() >= 10); assertTrue(elementSet.contains(MobileSeLionElement.BUTTON)); }