public void testClear() {
   LongArrayAndSize l = new LongArrayAndSize(10);
   for (long i = 0; i < 10; i++) l.add(i);
   l.clear();
   for (long i = 0; i < 10; i++) l.add(i * 2);
   for (long i = 0; i < 10; i++) assertEquals(i * 2, l.get((int) i));
   assertEquals(10, l.size());
 }
 public void testAddGet() {
   LongArrayAndSize l = new LongArrayAndSize(10);
   for (long i = 0; i < 10; i++) l.add(i);
   for (long i = 0; i < 10; i++) assertEquals(i, l.get((int) i));
   assertEquals(10, l.size());
 }