| /* |
| * Copyright (c) 2017, 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 returned element is correct. |
| * @author ngl@unipro.ru |
| */ |
| |
| import "dart:typed_data"; |
| import "../../../Utils/expect.dart"; |
| |
| Int32x4 i32x4(n) => new Int32x4(n, n, n, n); |
| |
| equal(o1, o2) => o1.x == o2.x && o1.y == o2.y && o1.z == o2.z && o1.w == o2.w; |
| |
| main() { |
| var list = [ |
| i32x4(0), i32x4(1), i32x4(2), i32x4(3), i32x4(4), i32x4(5), i32x4(6), |
| i32x4(1), i32x4(8), i32x4(9), i32x4(4), i32x4(5) |
| ]; |
| var l = new Int32x4List.fromList(list); |
| var res = l.singleWhere((e) => e.x == 2); |
| Expect.isTrue(equal(list[2], res)); |
| |
| res = l.singleWhere((e) => e.y > 8); |
| Expect.isTrue(equal(list[9], res)); |
| |
| res = l.singleWhere((e) => e.z >= 9); |
| Expect.isTrue(equal(list[9], res)); |
| |
| res = l.singleWhere((e) => e.w < 1); |
| Expect.isTrue(equal(list[0], res)); |
| } |