| // Copyright (c) 2013, 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 E singleWhere(bool test(E element)) |
| /// If no or more than one element match then a [StateError] is thrown. |
| /// @description Checks that a [StateError] is thrown if more than one |
| /// element match [test]. |
| /// @author msyabro |
| |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| var runes = new Runes('\x01\x02\x03\x04\x05'); |
| Expect.throws(() {runes.singleWhere( (e) => true);}, (e) => e is StateError); |
| Expect.throws(() {runes.singleWhere( (e) => e != 0);}, (e) => e is StateError); |
| } |