Robert Nystrom
a2b556b937
Change-Id: Ia5c41dda6503e1fbb8cc6099835d07588425e2ba Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/128310 Commit-Queue: Bob Nystrom <rnystrom@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com> Reviewed-by: Lasse R.H. Nielsen <lrn@google.com>
37 lines
1023 B
Dart
37 lines
1023 B
Dart
// 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() {
|
|
asyncStart(2);
|
|
() async {
|
|
var it = new StreamIterator(new Stream.fromIterable([]));
|
|
Expect.isFalse(await it.moveNext());
|
|
|
|
late Future nullFuture;
|
|
late 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();
|
|
});
|
|
}();
|
|
}
|