| // Copyright (c) 2020, 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 "package:expect/expect.dart"; |
| |
| main() { |
| // Verify that the default value is as expected. |
| Expect.equals(false, const bool.fromEnvironment('UNDEFINED_NAME')); |
| Expect.equals(0, const int.fromEnvironment('UNDEFINED_NAME')); |
| Expect.equals('', const String.fromEnvironment('UNDEFINED_NAME')); |
| |
| // Verify that `defaultValue` is used when passed, not the default values. |
| Expect.equals( |
| true, const bool.fromEnvironment('UNDEFINED_NAME', defaultValue: true)); |
| Expect.equals( |
| 1, const int.fromEnvironment('UNDEFINED_NAME', defaultValue: 1)); |
| Expect.equals('qux', |
| const String.fromEnvironment('UNDEFINED_NAME', defaultValue: 'qux')); |
| } |