| // 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()) |
| /// Register a function to be called when this future completes. |
| /// The action function is called when this future completes, |
| /// whether it does so with a value or with an error. |
| /// This is the asynchronous equivalent of a "finally" block. |
| /// @description Checks that the action is called both when this future |
| /// completes with a value or with an error. |
| /// @author kaigorodov |
| |
| import "dart:async"; |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| void action() { |
| asyncEnd(); |
| } |
| |
| Completer completer = new Completer(); |
| completer.future.whenComplete(action); |
| asyncStart(); |
| completer.complete(20); |
| |
| Completer completer2 = new Completer(); |
| completer2.future.whenComplete(action).catchError((e) {}); |
| asyncStart(); |
| completer2.completeError(22); |
| } |
| |