Iterator<String> i2 = Iterables.consumingIterable(list).iterator();

    i1.next();
    assertThrows(ConcurrentModificationException.class, () -> i2.next());
  }

  public void testConsumingIterable_queue_iterator() {
    List<Integer> items = ImmutableList.of(4, 8, 15, 16, 23, 42);
    new IteratorTester<Integer>(3, UNMODIFIABLE, items, IteratorTester.KnownOrder.KNOWN_ORDER) {
      @Override