@Test public void testSearch() { final LongSkipList list = new LongSkipList(); for (int i = 0; i < 1000; i++) { list.add(i); } for (int i = 1999; i >= 1000; i--) { list.add(i); } for (int i = 0; i < 2000; i++) { Assert.assertNotNull(list.search(i)); } Assert.assertNull(list.search(-1)); }