| // Copyright (c) 2016, 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 const String.fromEnvironment(String name, {String defaultValue}) |
| * Returns the string value of the environment declaration name. |
| * Environment declarations are provided by the surrounding system compiling or |
| * running the Dart program. Declarations map a string key to a string value. |
| * If name is not declared in the environment, the result is instead |
| * defaultValue. |
| * @description Checks that if the is no appropriate environment variable then |
| * default value is used |
| * @author sgrekhov@unipro.ru |
| */ |
| import "../../../Utils/expect.dart"; |
| |
| const ENV_VAR = "SOME_ENV_VARIABLE"; |
| |
| main() { |
| var s1 = const String.fromEnvironment(ENV_VAR, defaultValue: "No"); |
| Expect.equals("No", s1); |
| |
| var s2 = const String.fromEnvironment(ENV_VAR); |
| Expect.equals("", s2); |
| } |