list.add(freshElement);
    return list;
  }

  @Generates
  static <E> LinkedList<E> generateLinkedList(@Nullable E freshElement) {
    LinkedList<E> list = Lists.newLinkedList();
    list.add(freshElement);
    return list;
  }

  @Generates
  static <E> ImmutableList<E> generateImmutableList(E freshElement) {
    return ImmutableList.of(freshElement);
  }

    list.add(freshElement);
    return list;
  }

  @Generates
  static <E> LinkedList<E> generateLinkedList(@Nullable E freshElement) {
    LinkedList<E> list = Lists.newLinkedList();
    list.add(freshElement);
    return list;
  }

  @Generates
  static <E> ImmutableList<E> generateImmutableList(E freshElement) {
    return ImmutableList.of(freshElement);
  }

      throws Exception {
    IteratorTester<T> tester =
        new IteratorTester<T>(
            steps,
            IteratorFeature.MODIFIABLE,
            Lists.newLinkedList(values),
            IteratorTester.KnownOrder.UNKNOWN_ORDER) {
          private @Nullable MinMaxPriorityQueue<T> mmHeap;

          @Override
          protected Iterator<T> newTargetIterator() {