@Test public void testClearList() { final LongSkipList list = new LongSkipList(); for (int i = 0; i < 1000; i++) { list.add(i); } Assert.assertEquals(1000, list.size()); Assert.assertEquals(0L, list.getMinimum().longValue()); Assert.assertEquals(999L, list.getMaximum().longValue()); list.clear(); Assert.assertEquals(0, list.size()); Assert.assertNull(list.getMinimum()); Assert.assertNull(list.getMaximum()); }