| /* |
| * Copyright (c) 2011, 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 abstract E singleWhere(bool test(E value)) |
| * Returns the single element that satisfies f. |
| * @description Checks that the single element that satisfies the given predicate f |
| * is returned. |
| * @author kaigorodov |
| */ |
| import "../../../Utils/expect.dart"; |
| |
| check(List a, test(value), int expected) { |
| int actual=a.singleWhere(test); |
| Expect.equals(expected, actual); |
| } |
| |
| main() { |
| check([1,2,-3,0], (value)=>value>1, 2); |
| check(const[1,2,-5,-6], (value)=>value==1, 1); |
| } |
