public void testSkip_iterator() {
    new IteratorTester<Integer>(
        5, MODIFIABLE, newArrayList(2, 3), IteratorTester.KnownOrder.KNOWN_ORDER) {
      @Override
      protected Iterator<Integer> newTargetIterator() {
        return skip(newLinkedHashSet(asList(1, 2, 3)), 1).iterator();
      }
    }.test();
  }

  @GwtIncompatible // slow (~35s)
  public void testSkip_iteratorList() {

  public void testSkip_iterator() {
    new IteratorTester<Integer>(
        5, MODIFIABLE, newArrayList(2, 3), IteratorTester.KnownOrder.KNOWN_ORDER) {
      @Override
      protected Iterator<Integer> newTargetIterator() {
        return skip(newLinkedHashSet(asList(1, 2, 3)), 1).iterator();
      }
    }.test();
  }

  @GwtIncompatible // slow (~35s)
  public void testSkip_iteratorList() {