| // 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 hashCode → int |
| * Get a hash code for this object.… |
| * read-only, inherited |
| * @description Checks that hashCode is constant in time even if element |
| * is changed |
| * @author a.semenov@unipro.ru |
| */ |
| import "../../../Utils/expect.dart"; |
| import "dart:collection"; |
| import "dart:math"; |
| main() { |
| DoubleLinkedQueueEntry d = new DoubleLinkedQueueEntry(pi); |
| int hashCode = d.hashCode; |
| for (Object o in [e, double.nan, -1, "hello", d]){ |
| d.element = o; |
| Expect.equals(hashCode, d.hashCode); |
| } |
| } |
