| /* |
| * 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 V putIfAbsent(K key, V ifAbsent()) |
| * This operation is not supported. |
| * @description Checks that [putIfAbsent] method is not supported. |
| * @author iarkh@unipro.ru |
| */ |
| import "dart:collection"; |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| UnmodifiableMapView view = new UnmodifiableMapView({1 : 1, 2 : 2}); |
| Expect.throws(() { |
| view.putIfAbsent("1", () { |
| Expect.fail(""); |
| return 0; |
| }); |
| }, (e) => e is UnsupportedError); |
| } |