tests/lib/async/stream_periodic2_test.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:expect/legacy/async_minitest.dart'; // ignore: deprecated_member_use

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),
    );
  });
}