| // Copyright (c) 2016, 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 |
| |
| /// @assertion Future<T> timeout(Duration timeLimit, {dynamic onTimeout()}) |
| /// Time-out the future computation after timeLimit has passed. |
| /// . . . |
| /// If this future does not complete before timeLimit has passed, the onTimeout |
| /// action is executed instead, and its result (whether it returns or throws) is |
| /// used as the result of the returned future. The onTimeout function must return |
| /// a T or a Future<T>. |
| /// |
| /// @description Checks that if future does not complete before timeLimit has |
| /// passed, the onTimeout action is executed instead. The onTimeout returns value |
| /// 56. |
| /// @author ngl@unipro.ru |
| /// @author a.semenov@unipro.ru |
| |
| import "dart:async"; |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| asyncStart(); |
| Completer completer = new Completer(); |
| completer.future.timeout( |
| new Duration(microseconds:1), |
| onTimeout: () => 56 |
| ).then( |
| (value) { |
| Expect.equals(56, value); |
| asyncEnd(); |
| } |
| ); |
| } |