|  | // Copyright (c) 2013, 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. | 
|  |  | 
|  | import 'package:async_helper/async_helper.dart'; | 
|  | import "package:expect/expect.dart"; | 
|  | import 'dart:async'; | 
|  | import 'catch_errors.dart'; | 
|  |  | 
|  | main() { | 
|  | asyncStart(); | 
|  | Completer done = new Completer(); | 
|  |  | 
|  | var events = []; | 
|  | // Test runZoned with periodic Timers. | 
|  | runZoned(() { | 
|  | int counter = 0; | 
|  | new Timer.periodic(const Duration(milliseconds: 50), (timer) { | 
|  | if (counter == 5) { | 
|  | timer.cancel(); | 
|  | done.complete(true); | 
|  | } | 
|  | counter++; | 
|  | events.add(counter); | 
|  | }); | 
|  | }); | 
|  |  | 
|  | done.future.whenComplete(() { | 
|  | Expect.listEquals([ | 
|  | "main exit", | 
|  | 1, | 
|  | 2, | 
|  | 3, | 
|  | 4, | 
|  | 5, | 
|  | 6, | 
|  | ], events); | 
|  | asyncEnd(); | 
|  | }); | 
|  | events.add("main exit"); | 
|  | } |