LibTest/io/RawSecureServerSocket/single_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 Future<RawSecureSocket> single
/// The single element of this stream.
/// . . .
/// If this is empty or has more than one element, the returned future completes
/// with an error.
///
/// @description Checks that if the returned future completes with an error, this
/// may be empty.
/// @author ngl@unipro.ru

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

check(InternetAddress address) {
  asyncStart();
  SecurityContext sc = new SecurityContext(withTrustedRoots: true);
  RawSecureServerSocket.bind(address, 0, sc).then((server) {
    Stream<RawSecureSocket> bs = server.asBroadcastStream();
    bs.single.then((event) {
      Expect.fail('Future should be completed with Error');
    }, onError: (error) {
      Expect.isTrue(error is StateError);
      bs.isEmpty.then((value) {
        Expect.isTrue(value);
        asyncEnd();
      });
    });
    server.close();
  });
}

main() {
  check(InternetAddress.anyIPv4);
  check(InternetAddress.anyIPv6);
  check(InternetAddress.loopbackIPv4);
  check(InternetAddress.loopbackIPv6);
}