return getSubjectGenerator().create(e0(), e1(), e1(), e2()).iterator();
      }
    }.test();
  }

  @CollectionFeature.Require(value = SUPPORTS_ITERATOR_REMOVE, absent = KNOWN_ORDER)
  public void testRemovingIteratorUnknownOrder() {
    new IteratorTester<E>(
        4,
        MODIFIABLE,
        Arrays.asList(e0(), e1(), e1(), e2()),
        IteratorTester.KnownOrder.UNKNOWN_ORDER) {
      @Override

        return getSubjectGenerator().create(e0(), e1(), e1(), e2()).iterator();
      }
    }.test();
  }

  @CollectionFeature.Require(value = SUPPORTS_ITERATOR_REMOVE, absent = KNOWN_ORDER)
  public void testRemovingIteratorUnknownOrder() {
    new IteratorTester<E>(
        4,
        MODIFIABLE,
        Arrays.asList(e0(), e1(), e1(), e2()),
        IteratorTester.KnownOrder.UNKNOWN_ORDER) {
      @Override