| // Copyright (c) 2015, 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 |
| |
| library custom_elements_method_clash; |
| |
| import 'dart:async'; |
| import 'dart:html'; |
| import 'package:async_helper/async_minitest.dart'; |
| import 'utils.dart'; |
| |
| class CustomElement extends HtmlElement { |
| factory CustomElement() => new Element.tag('x-custom'); |
| |
| CustomElement.created() : super.created() {} |
| |
| // Try to clash with native 'appendChild' method. |
| void appendChild() { |
| throw 'Gotcha!'; |
| } |
| } |
| |
| main() async { |
| await customElementsReady; |
| |
| group('test', () { |
| test('test', () { |
| document.registerElement2('x-custom', {'prototype': CustomElement}); |
| CustomElement custom = new CustomElement(); |
| document.body.children.add(custom); |
| |
| // Will call appendChild in JS. |
| custom.children.add(new DivElement()..text = 'Hello world!'); |
| |
| try { |
| custom.appendChild(); // Make sure method is not tree shaken. |
| fail('appendChild did not throw'); |
| } catch (e) { |
| expect(e, equals('Gotcha!')); |
| } |
| }); |
| }); |
| } |