| // 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)) |
| /// * ... |
| /// Otherwise, if there are no matching elements, or if there is more than one |
| /// matching element, a [StateError] is thrown. |
| /// @description Checks that a [StateError] is thrown if more than one element |
| /// match [test]. |
| /// @author msyabro |
| |
| |
| import "dart:typed_data"; |
| import "../../../Utils/expect.dart"; |
| |
| Float32x4 pack(v) => new Float32x4.splat(v); |
| |
| main() { |
| var l = new Float32x4List.fromList( |
| [pack(1.0), pack(2.0), pack(3.0), pack(4.0), pack(5.0)]); |
| Expect.throws(() { l.singleWhere((e) => true); }, (e) => e is StateError); |
| |
| l = new Float32x4List.fromList( |
| [pack(1.0), pack(2.0), pack(3.0), pack(4.0), pack(5.0)]); |
| Expect.throws( |
| () { l.singleWhere((e) => e.x != 0.0); }, (e) => e is StateError); |
| } |