| // 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 = []; |
| |
| // runGuarded calls run, captures the synchronous error (if any) and |
| // gives that one to handleUncaughtError. |
| |
| var result; |
| |
| Expect.identical(Zone.root, Zone.current); |
| Zone forked; |
| forked = Zone.current.fork( |
| specification: new ZoneSpecification( |
| run: <R>(Zone self, ZoneDelegate parent, Zone origin, R f()) { |
| // The zone is still the same as when origin.run was invoked, which |
| // is the root zone. (The origin zone hasn't been set yet). |
| Expect.identical(Zone.root, Zone.current); |
| events.add("forked.run"); |
| return parent.run(origin, f); |
| }, handleUncaughtError: |
| (Zone self, ZoneDelegate parent, Zone origin, error, stackTrace) { |
| Expect.identical(Zone.root, Zone.current); |
| Expect.identical(forked, origin); |
| events.add("forked.handleUncaught $error"); |
| result = 499; |
| })); |
| |
| forked.runGuarded(() { |
| events.add("runGuarded 1"); |
| Expect.identical(forked, Zone.current); |
| result = 42; |
| }); |
| Expect.identical(Zone.root, Zone.current); |
| Expect.equals(42, result); |
| events.add("after runGuarded 1"); |
| |
| result = null; |
| forked.runGuarded(() { |
| events.add("runGuarded 2"); |
| Expect.identical(forked, Zone.current); |
| throw 42; |
| }); |
| Expect.equals(499, result); |
| |
| Expect.listEquals([ |
| "forked.run", |
| "runGuarded 1", |
| "after runGuarded 1", |
| "forked.run", |
| "runGuarded 2", |
| "forked.handleUncaught 42" |
| ], events); |
| |
| result = null; |
| events.clear(); |
| asyncStart(); |
| forked.runGuarded(() { |
| Expect.identical(forked, Zone.current); |
| events.add("run closure"); |
| forked.scheduleMicrotask(() { |
| events.add("run closure 2"); |
| Expect.identical(forked, Zone.current); |
| done.complete(true); |
| throw 88; |
| }); |
| throw 1234; |
| }); |
| events.add("after nested scheduleMicrotask"); |
| Expect.equals(499, result); |
| |
| done.future.whenComplete(() { |
| Expect.listEquals([ |
| "forked.run", |
| "run closure", |
| "forked.handleUncaught 1234", |
| "after nested scheduleMicrotask", |
| "forked.run", |
| "run closure 2", |
| "forked.handleUncaught 88" |
| ], events); |
| asyncEnd(); |
| }); |
| } |