| // 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 dynamic lastWhere(bool test(E element), {Object orElse()}) |
| /// If none matches, the result of invoking the orElse function is returned. |
| /// @description Checks that the [orElse] function is invoked and |
| /// its result is returned if no element matches [test]. |
| /// @author msyabro |
| |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| var count = 0; |
| f () { |
| count++; |
| return 1; |
| } |
| var runes = new Runes('\x01\x02\x03\x04\x05\x06\x09'); |
| var res = runes.lastWhere( (element) => false, orElse: f); |
| Expect.equals(1, count); |
| Expect.equals(1, res); |
| |
| res = runes.lastWhere( (element) => element > 100, orElse: f); |
| Expect.equals(2, count); |
| Expect.equals(1, res); |
| |
| runes = new Runes(''); |
| res = runes.lastWhere( (element) => true, orElse: f); |
| Expect.equals(3, count); |
| Expect.equals(1, res); |
| } |