dart-sdk/tests/lib/async/stream_periodic2_test.dart
Robert Nystrom a2b556b937 Migrate lib_2/async to NNBD.
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>
2020-01-09 22:04:37 +00:00

25 lines
731 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.
// Test merging streams.
library dart.test.stream_from_iterable;
import 'dart:async';
import 'package:async_helper/async_minitest.dart';
main() {
test("stream-periodic2", () {
Stream stream =
new Stream.periodic(const Duration(milliseconds: 1), (x) => x);
int receivedCount = 0;
var subscription;
subscription = stream.listen(expectAsync((data) {
expect(data, receivedCount);
receivedCount++;
if (receivedCount == 5) subscription.cancel();
}, count: 5));
});
}