// 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 either the size of buffer or 0.
/// Test the case when buffer length is greater then a maximum length of a
/// datagram which can be received
/// @author ngl@unipro.ru
/// @issue 31873


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);
  int listSize = 100000;
  List<List<int>> toSent = [getList(listSize)];
  List<int> bytesWritten = await sendDatagramOnce(producer, toSent, localhost,
      receiver.port);
  producer.close();
  if (wasSent(bytesWritten)) {
    Expect.equals(listSize, bytesWritten[0]);
  }
  receiver.close();
}