| // 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 |
| |
| import "dart:io"; |
| |
| import "package:expect/expect.dart"; |
| |
| void fiddleWithEchoMode() { |
| final bool echoMode = stdin.echoMode; |
| stdin.echoMode = false; |
| stdin.echoMode = true; |
| stdin.echoMode = echoMode; |
| } |
| |
| void main() { |
| Expect.isNotNull(stdin.hasTerminal); |
| Expect.isTrue(stdin.hasTerminal is bool); |
| if (stdin.hasTerminal) { |
| fiddleWithEchoMode(); |
| } else { |
| Expect.throws(() { |
| fiddleWithEchoMode(); |
| }, (e) => e is StdinException); |
| } |
| } |