| // 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:expect/expect.dart'; |
| import 'package:async_helper/async_helper.dart'; |
| import 'dart:async'; |
| |
| main() { |
| Completer done = new Completer(); |
| List events = []; |
| |
| Expect.identical(Zone.ROOT, Zone.current); |
| Zone forked; |
| forked = Zone.current.fork(specification: new ZoneSpecification( |
| createPeriodicTimer: (Zone self, ZoneDelegate parent, Zone origin, |
| Duration period, f(Timer timer)) { |
| events.add("forked.createPeriodicTimer"); |
| return parent.createPeriodicTimer(origin, period, (Timer timer) { |
| events.add("wrapped function ${period.inMilliseconds}"); |
| f(timer); |
| }); |
| })); |
| |
| asyncStart(); |
| int tickCount = 0; |
| forked.run(() { |
| new Timer.periodic(const Duration(milliseconds: 5), (Timer timer) { |
| events.add("periodic Timer $tickCount"); |
| Expect.identical(forked, Zone.current); |
| tickCount++; |
| if (tickCount == 4) { |
| timer.cancel(); |
| // Allow some time in case the cancel didn't work. |
| new Timer(const Duration(milliseconds: 20), done.complete); |
| } |
| }); |
| }); |
| |
| Expect.identical(Zone.ROOT, Zone.current); |
| events.add("after createPeriodicTimer"); |
| |
| done.future.whenComplete(() { |
| Expect.listEquals([ |
| "forked.createPeriodicTimer", |
| "after createPeriodicTimer", |
| "wrapped function 5", |
| "periodic Timer 0", |
| "wrapped function 5", |
| "periodic Timer 1", |
| "wrapped function 5", |
| "periodic Timer 2", |
| "wrapped function 5", |
| "periodic Timer 3" |
| ], events); |
| asyncEnd(); |
| }); |
| } |