| /* |
| * 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. |
| */ |
| /** |
| * @description This tests that a document only supports one document element. |
| */ |
| import "dart:html"; |
| import "../../testcommon.dart"; |
| |
| main() { |
| shouldThrow(() { |
| document.append( |
| document.createElementNS("http://www.w3.org/1999/xhtml", "html")); |
| }, (e) => e is DomException && e.name == DomException.HIERARCHY_REQUEST); |
| } |
