| // Copyright (c) 2011, 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 If the string is not already all lower case, returns a new string |
| /// where all characters of this string are made lower case. Returns |
| /// this otherwise. |
| /// @description Checks that if the string is already in lower case, it is |
| /// returned instead of a new string. |
| /// @author msyabro |
| |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| String str = "all characters in lower case"; |
| String str2 = str.toLowerCase(); |
| |
| Expect.identical(str, str2); |
| } |
