LibTest/io/RawDatagramSocket/send_A01_t02.dart

// Copyright (c) 2017, 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 int send(List<int> buffer, InternetAddress address, int port)
/// Send a datagram.
///
/// Returns the number of bytes written. This will always be either the size of
/// buffer or 0.
///
/// @description Checks that method send returns the number of bytes that were
/// sent.
/// @author sgrekhov@unipro.ru

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

var localhost = InternetAddress.loopbackIPv4;

main() async {
  RawDatagramSocket producer = await RawDatagramSocket.bind(localhost, 0);
  RawDatagramSocket receiver = await RawDatagramSocket.bind(localhost, 0);
  List<List<int>> toSent = [[1, 1], bigData, [2]];
  bool sent = await sendDatagram(producer, toSent, localhost, receiver.port);
  Expect.isTrue(sent);

  List<List<int>> received = await receiveDatagram(receiver);
  Expect.isTrue(received.length > 0);
}