| // 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 firstWhere(bool test(E element), {E orElse()}) |
| * ... |
| * If no element satisfies test, 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 "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 count = 0; |
| Float32x4 f() { |
| count++; |
| return pack(0.0); |
| } |
| var l = new Float32x4List.fromList([ |
| pack(1.0), pack(2.0), pack(3.0), pack(4.0), pack(5.0), pack(6.0), pack(9.0) |
| ]); |
| var res = l.firstWhere((element) => false, orElse: f); |
| Expect.equals(1, count); |
| Expect.isTrue(equal(pack(.0), res)); |
| |
| res = l.firstWhere((element) => element.z > 100.0, orElse: f); |
| Expect.equals(2, count); |
| Expect.isTrue(equal(pack(.0), res)); |
| |
| l = new Float32x4List.fromList([]); |
| res = l.firstWhere((element) => true, orElse: f); |
| Expect.equals(3, count); |
| Expect.isTrue(equal(pack(.0), res)); |
| } |