LibTest/io/InternetAddress/isLoopBack_A01_t05.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 bool isLoopback
/// Returns [true] if the InternetAddress is a loopback address.
/// @description Checks that [isLoopback] returns [true] for all the addresses
/// which corresponds to localhost.
/// @author iarkh@unipro.ru


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

main() {
  Future<List<InternetAddress>>  list = InternetAddress.lookup("localhost");

  list.then((addresses) {
    addresses.forEach((InternetAddress addr) {
      Expect.isTrue(addr.isLoopback);
    });
  }, onError: (e) { Expect.fail("Unexpected error appeared: $e"); });
}