| /* |
| * 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"; |
| |
| void check(Node x) { |
| Expect.isNull(x.previousNode); |
| |
| var body = document.body; |
| var child = body.lastChild; |
| body.append(x); |
| Expect.equals(child, x.previousNode); |
| } |
| |
| main() { |
| List<Node> targets = [ |
| new Comment("comment"), |
| new Text("text"), |
| new DocumentFragment(), |
| ]; |
| for (Node x in targets) { |
| check(x); |
| } |
| } |