LibTest/io/RawDatagramSocket/map_A03_t01.dart

// Copyright (c) 2018, 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.

/// @assertion Stream<S> map<S>(S convert(T event))
/// Creates a new stream that converts each element of this stream to a new value
/// using the convert function.
/// . . .
/// The returned stream is a broadcast stream if this stream is.
///
/// @description Checks that the returned stream is a broadcast stream if this
/// stream is.
/// @author ngl@unipro.ru

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

main() {
  var address = InternetAddress.loopbackIPv4;
  RawDatagramSocket.bind(address, 0).then((socket) {
    Stream stream1 = socket.map((e) => e);
    Expect.isFalse(stream1.isBroadcast);
    Stream bcs = socket.asBroadcastStream();
    Stream stream2 = bcs.map((e) => e);
    Expect.isTrue(stream2.isBroadcast);
  });
}