| // 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. |
| |
| /// @assertion void retainWhere(bool test(E element)) |
| /// This operation is not supported by an unmodifiable list. |
| /// @description Checks that [retainWhere] method is not supported. |
| /// @author iarkh@unipro.ru |
| |
| import "dart:collection"; |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| UnmodifiableListView l = new UnmodifiableListView([1, 2, 3, 4, 5]); |
| Expect.throws(() { l.retainWhere((var element) => true); }, |
| (e) => e is UnsupportedError); |
| Expect.throws(() { l.retainWhere((var element) => element > 7); }, |
| (e) => e is UnsupportedError); |
| } |
