| /* |
| * 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)) |
| * Returns the single element that satisfies [test]. |
| * Checks all elements to see if test(element) returns true. If exactly one |
| * element satisfies test, that element is returned. |
| * @description Checks that the single element satisfying [test] is returned. |
| * @author msyabro |
| */ |
| |
| import "dart:typed_data"; |
| import "../../../Utils/expect.dart"; |
| |
| Float32x4 pack(v) => new Float32x4.splat(v); |
| |
| equal(obj1, obj2) { |
| var res = obj1.equal(obj2); |
| return res.flagX && res.flagY && res.flagZ && res.flagW; |
| } |
| |
| main() { |
| var l = new Float32x4List.fromList([ |
| pack(.0), pack(.0), pack(.0), pack(.0), pack(.0), pack(5.0), pack(.0), |
| pack(.0), pack(-10.0), pack(.0) |
| ]); |
| |
| var res = l.singleWhere((e) => e.x > 0 ); |
| Expect.isTrue(equal(pack(5.0), res)); |
| |
| res = l.singleWhere((e) => e.x < 0 ); |
| Expect.isTrue(equal(pack(-10.0), res)); |
| } |