| /* |
| * Copyright (c) 2016, 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)) |
| * ... |
| * The [test] function must not throw or modify the queue. |
| * @description Checks that if [test] function throws an exception then |
| * operation stops |
| * @author sgrekhov@unipro.ru |
| */ |
| library retainWhere_A02_t01; |
| |
| import "../../../Utils/expect.dart"; |
| import "dart:collection"; |
| |
| bool throwFunction(var element) { |
| if (element < 0) { |
| return true; |
| } else { |
| throw new Exception(); |
| } |
| } |
| |
| test(Queue create([Iterable content])) { |
| Queue a = create([-3, -2, -1, 0, 1, 2, 3, -1]); |
| Expect.throws(() { a.retainWhere(throwFunction); }); |
| Expect.iterableEquals([-3, -2, -1, 0, 1, 2, 3, -1], a); |
| } |