| /* |
| * Copyright (c) 2018, 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 void shuffle([Random random]) |
| * Shuffles the elements of this list randomly. |
| * @description Checks that use of the same Random seed produces the same |
| * shuffle |
| * @author sgrekhov@unipro.ru |
| */ |
| import "dart:typed_data"; |
| import "dart:math"; |
| import "../../../Utils/expect.dart"; |
| |
| i32x4p(n) => new Int32x4(n, n + 1, n + 2, n + 3); |
| |
| equal(o1, o2) { |
| return o1.x == o2.x && o1.y == o2.y && o1.z == o2.z && o1.w == o2.w; |
| } |
| |
| main() { |
| List<Int32x4> list = [i32x4p(1), i32x4p(2), i32x4p(3), i32x4p(4), i32x4p(5), |
| i32x4p(6)]; |
| var shuffled1 = new Int32x4List.fromList(list); |
| shuffled1.shuffle(new Random(6)); |
| var shuffled2 = new Int32x4List.fromList(list); |
| shuffled2.shuffle(new Random(6)); |
| |
| Expect.equals(shuffled1.length, shuffled2.length); |
| for (int i = 0; i < shuffled1.length; i++) { |
| Expect.isTrue(equal(shuffled1[i], shuffled2[i])); |
| } |
| } |