| // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| // @dart = 2.9 |
| |
| /// @assertion final Node parentNode |
| /// The parent node of this node. |
| /// Returns null if this node either does not have a parent or its parent is not an element. |
| /// @description Checks that document is not a child of any node. |
| |
| import "dart:html"; |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| Expect.isNull(document.parentNode); |
| } |
