| /* |
| * 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 E singleWhere(bool test(E element)) |
| * Returns the single element that satisfies f. |
| * @description Checks that the single element that satisfies the given |
| * predicate f is returned. |
| * @author kaigorodov |
| */ |
| library singleWhere_A01_t01; |
| import "../../../Utils/expect.dart"; |
| |
| check(Iterable a, bool f(value), int expected) { |
| var actual = a.singleWhere(f); |
| Expect.equals(expected, actual); |
| } |
| |
| test(Iterable create([Iterable content])) { |
| check(create([1, 2, -3, 0]), (value) => value > 1, 2); |
| check(create(const[1, 2, -5, -6]), (value) => value == 1, 1); |
| } |