| /* |
| * 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 no element |
| * matches [test]. |
| * @author msyabro |
| */ |
| |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| var runes = new Runes(''); |
| try { |
| runes.singleWhere( (e) => true); |
| Expect.fail("StateError is expected"); |
| } on StateError catch(ok) {} |
| |
| runes = new Runes('\x01\x02\x03\x04\x05'); |
| try { |
| runes.singleWhere( (e) => e == 0); |
| Expect.fail("StateError is expected"); |
| } on StateError catch(ok) {} |
| |
| runes = new Runes('\x01\x02\x03\x04\x05'); |
| try { |
| runes.singleWhere( (e) => false); |
| Expect.fail("StateError is expected"); |
| } on StateError catch(ok) {} |
| } |
| |