| // 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 int indexOf(E element, [int start = 0]) |
| /// Returns the first index of [element] in the list. |
| /// @description Checks that if [start] is not specified, searches the entire |
| /// list from the very beginning. |
| /// @author iarkh@unipro.ru |
| |
| import "dart:collection"; |
| import "../../../Utils/expect.dart"; |
| |
| main() { |
| UnmodifiableListView a = new UnmodifiableListView( |
| [42, 0, -1, 42, -1, 6031769, 0]); |
| Expect.equals(0, a.indexOf(42)); |
| Expect.equals(1, a.indexOf(0)); |
| Expect.equals(2, a.indexOf(-1)); |
| Expect.equals(5, a.indexOf(6031769)); |
| } |