| // 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. |
| |
| // @dart = 2.9 |
| |
| import "package:expect/expect.dart"; |
| import "package:async_helper/async_helper.dart"; |
| import 'dart:async'; |
| |
| main() { |
| asyncStart(2); |
| () async { |
| var it = new StreamIterator(new Stream.fromIterable([])); |
| Expect.isFalse(await it.moveNext()); |
| |
| Future nullFuture; |
| Future falseFuture; |
| |
| runZoned(() { |
| nullFuture = (new StreamController()..stream.listen(null).cancel()).done; |
| falseFuture = it.moveNext(); |
| }, zoneSpecification: new ZoneSpecification(scheduleMicrotask: |
| (Zone self, ZoneDelegate parent, Zone zone, void f()) { |
| Expect.fail("Should not be called"); |
| })); |
| |
| nullFuture.then((value) { |
| Expect.isNull(value); |
| asyncEnd(); |
| }); |
| |
| falseFuture.then((value) { |
| Expect.isFalse(value); |
| asyncEnd(); |
| }); |
| }(); |
| } |