@Test
 public void testPopulate() {
   MySet mySet = new MySet();
   LinkedList<Integer> list = new LinkedList<Integer>(new Integer(5));
   list.peek();
   mySet.populateMySet(list);
 }
 @Test
 public void testEmptyList() {
   MySet myList = new MySet();
   LinkedList<Integer> list = new LinkedList<Integer>();
   myList.populateMySet(list);
 }