| /* |
| * 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 dynamic firstWhere(bool test(E value), {Object orElse()}) |
| * If none matches, the result of invoking the orElse function is returned. |
| * @description Checks that the result of invoking the orElse function is returned |
| * when none matches. |
| * @author kaigorodov |
| */ |
| |
| import "dart:collection"; |
| import "../../../Utils/expect.dart"; |
| |
| class TestException {} |
| |
| check(List list) { |
| DoubleLinkedQueue queue = new DoubleLinkedQueue.from(list); |
| Expect.throws(() { |
| queue.firstWhere((int value)=>false, orElse: (){throw new TestException();}); |
| }, |
| (e)=> e is TestException |
| ); |
| } |
| |
| main() { |
| check(new List()); |
| check([]); |
| check(const[]); |
| check(new List.from([])); |
| check([1,2,3]); |
| } |