| // Copyright (c) 2011, 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 Future<T> whenComplete(action()) |
| * The future returned by this call, f, will complete the same way as this |
| * future unless an error occurs in the action call, or in a Future returned by |
| * the action call. If the call to action does not return a future, its return |
| * value is ignored. |
| * @description Checks that the future returned by this call, f, |
| * will complete with the same error as this future, if error occurs. |
| * @author a.semenov@unbipro.ru |
| */ |
| import "dart:async"; |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| int value = 20; |
| |
| Completer completer = new Completer(); |
| Future f0 = completer.future; |
| Future f = f0.whenComplete(() {}); |
| |
| asyncStart(); |
| completer.completeError(value); |
| |
| f.then( |
| (value2) { |
| Expect.fail("Returned future should complete with error"); |
| }, |
| onError: (error) { |
| Expect.equals(value, error); |
| asyncEnd(); |
| }); |
| } |