// Copyright (c) 2018, 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.

/// @assertion bool echoMode
/// Check if echo mode is enabled on [stdin].
/// @description Checks that [echoMode] is a valid [boolean] value and can be
/// read inside the dart process.
/// @author iarkh@unipro.ru
/// @Issue 31932

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

main(List<String> args) {
  Expect.isTrue(stdin.echoMode || !stdin.echoMode);
}