LibTest/io/Stdout/hasTerminal_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 bool hasTerminal
/// Returns true if there is a terminal attached to stdout.
/// @description Checks [hasTerminal] property correctness for [stderr].
/// @author iarkh@unipro.ru


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

main() {
  if (stderr.hasTerminal) {
    Expect.notEquals(0, stderr.terminalColumns);
    Expect.notEquals(0, stderr.terminalLines);
  } else {
    Expect.throws(() => stderr.terminalColumns, (e) => e is StdoutException);
    Expect.throws(() => stderr.terminalLines, (e) => e is StdoutException);
  }
}