// 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 Future<HttpServer> bind(
///  address,
///  int port, {
///  int backlog: 0,
///  bool v6Only: false,
///  bool shared: false
/// }).
/// ...
/// If an IP version 6 (IPv6) address is used, both IP version 6 (IPv6) and
/// version 4 (IPv4) connections will be accepted. To restrict this to version 6
/// (IPv6) only, use v6Only to set version 6 only.
/// @description Checks that if v6Only is set to true, then only IPv6 connections
/// accepted
/// @author sgrekhov@unipro.ru
/// @issue 31111

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

test() async {
  HttpServer server =
      await HttpServer.bind(InternetAddress.loopbackIPv6, 0, v6Only: true);

  server.listen((HttpRequest request) {
    server.close();
    Expect.fail("Request shouldn't be processed");
  });

  HttpClient client = new HttpClient();
  client.getUrl(
      Uri.parse("http://${InternetAddress.loopbackIPv4.address}:${server.port}"))
      .then((HttpClientRequest request) {
    return request.close();
  }).then((HttpClientResponse response) {
    Expect.fail("No response expected");
  }).catchError((e) {
    try {
      Expect.isTrue(e is SocketException);
    } finally {
      server.close();
      asyncEnd();
    }
  });
}

main() {
  asyncStart();
  test();
}