Robert Nystrom
d3904f5a54
Change-Id: I6ccbe1494165c2bda142ece13584c4738e3b43e6 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/425347 Commit-Queue: Lasse Nielsen <lrn@google.com> Reviewed-by: Lasse Nielsen <lrn@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com>
43 lines
1.1 KiB
Dart
43 lines
1.1 KiB
Dart
// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import "package:expect/async_helper.dart";
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import "package:expect/expect.dart";
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import 'dart:async';
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main() {
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asyncStart(2);
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() async {
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var it = new StreamIterator(new Stream.fromIterable([]));
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Expect.isFalse(await it.moveNext());
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late Future nullFuture;
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late Future falseFuture;
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runZoned(
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() {
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nullFuture =
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(new StreamController()..stream.listen(null).cancel()).done;
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falseFuture = it.moveNext();
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},
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zoneSpecification: new ZoneSpecification(
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scheduleMicrotask:
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(Zone self, ZoneDelegate parent, Zone zone, void f()) {
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Expect.fail("Should not be called");
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},
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),
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);
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nullFuture.then((value) {
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Expect.isNull(value);
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asyncEnd();
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});
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falseFuture.then((value) {
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Expect.isFalse(value);
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asyncEnd();
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});
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}();
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}
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