@Test
public void testNoDuplicatesFilteringIterator() {
List<Integer> ints = Arrays.asList(1, 2, 2, 40, 100, 40, 101, 2, 3);
Iterator<Integer> iterator = FilteringIterator.noDuplicates(ints.iterator());
assertEquals((Integer) 1, iterator.next());
assertEquals((Integer) 2, iterator.next());
assertEquals((Integer) 40, iterator.next());
assertEquals((Integer) 100, iterator.next());
assertEquals((Integer) 101, iterator.next());
assertEquals((Integer) 3, iterator.next());
}
