List<E> targetElements = new ArrayList<>();
      Iterator<E> iterator = newTargetIterator();
      for (int j = 0; j < i; j++) {
        targetElements.add(iterator.next());
      }
      iterator.forEachRemaining(targetElements::add);
      if (knownOrder == KnownOrder.KNOWN_ORDER) {
        assertEquals(expectedElements, targetElements);
      } else {