LibTest/async/StreamSink/addStream_A01_t01.dart

// Copyright (c) 2011, 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

/// @assertion abstract Future addStream(Stream<S> stream)
/// Consumes the elements of stream.
/// Listens on stream and does something for each event.
/// The consumer may stop listening after an error, or it may consume all the
/// errors and only stop at a done event.
/// @description Checks that if stream contains only data events, they are
/// all added to a sink.
/// @author ilya


import "dart:async";
import "../../../Utils/expect.dart";

main() {
  var from = new Stream.fromIterable([1,2,3,4,5]);

  var c = new StreamController();
  var sink = c.sink;

  asyncStart();
  sink.addStream(from).then((_) {
    c.close();
    asyncEnd();
  });

  asyncStart();
  c.stream.toList().then((x) {
    Expect.listEquals([1,2,3,4,5], x);
    asyncEnd();
  });

}