| // 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. | |
| /// @assertion final Node previousNode | |
| /// The previous sibling node. | |
| /// @description Checks that document has no siblings. | |
| import "dart:html"; | |
| import "../../../Utils/expect.dart"; | |
| main() { | |
| Expect.isNull(document.previousNode); | |
| } |