| // 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 expected attribute values. |
| |
| import "dart:html"; |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| IFrameElement x = new Element.html('<iframe class="y">Content Text</iframe>') as IFrameElement; |
| Expect.isNull(x.previousNode); |
| |
| var body = document.body; |
| var child = body?.lastChild; |
| body?.append(x); |
| Expect.equals(child, x.previousNode); |
| } |