| // 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. |
| |
| /// @assertion Returns the value for the given [key] or null if [key] is not in |
| /// the map. |
| /// @description Checks that null keys and values are supported. |
| /// @author kaigorodov |
| |
| library operator_subscript_A01_t04; |
| |
| import "../../../Utils/expect.dart"; |
| |
| test(Map create([Map content])) { |
| Map map = create(); |
| Expect.equals(null, map[null]); |
| Expect.isFalse(map.containsKey(null)); |
| map[null] = null; |
| Expect.equals(null, map[null]); |
| Expect.isTrue(map.containsKey(null)); |
| } |