| /* |
| * 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 Stream<ProgressEvent> get onLoadStart |
| * Stream of loadstart events handled by this HttpRequestEventTarget. |
| * @description Checks that only single event is fired. |
| */ |
| import "dart:html"; |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| HttpRequest request = new HttpRequest(); |
| HttpRequestUpload upload = request.upload; |
| bool first = true; |
| request.open('GET', "test.dart"); |
| asyncStart(); |
| upload.onLoadStart.listen((event) { |
| Expect.isTrue(first); |
| first = false; |
| asyncEnd(); |
| }); |
| request.send(); |
| } |