| // Copyright (c) 2012, 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 timer_cancel2_test; |
| |
| import 'dart:async'; |
| import 'package:expect/expect.dart'; |
| |
| main() { |
| // Test that a timeout handler can cancel itself. |
| var cancelTimer; |
| var completer = new Completer(); |
| int calls = 0; |
| void cancelHandler(Timer timer) { |
| Expect.equals(1, ++calls); |
| cancelTimer.cancel(); |
| completer.complete(); |
| } |
| |
| cancelTimer = |
| new Timer.periodic(const Duration(milliseconds: 1), cancelHandler); |
| return completer.future; |
| } |