| // 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)) |
| /// ... |
| /// 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 there is no element that |
| /// satisfies test. |
| /// @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); |
| Expect.throws(() { l.singleWhere((e) => false ); }, (e) => e is StateError); |
| Expect.throws(() { l.singleWhere((e) => e.x > 9); }, (e) => e is StateError); |
| Expect.throws(() { l.singleWhere((e) => e.x < 0); }, (e) => e is StateError); |
| |
| l = new Int32x4List.fromList([]); |
| Expect.throws(() { l.singleWhere((e) => true); }, (e) => e is StateError); |
| } |