| /* |
| * 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 int lastIndexOf(E element, [int start]) |
| * Returns the last index of element in the list. |
| * Searches the list backwards from index start to 0. |
| * The first time an element e is encountered so that e == element, |
| * the index of e is returned. |
| * @description Checks that the correct index is returned, if the element is |
| * present in the list. |
| * @author iefremov |
| */ |
| library lastIndexOf_A01_t01; |
| |
| import "../../../Utils/expect.dart"; |
| |
| void check(List a) { |
| Expect.isTrue(a.lastIndexOf(42, 0) == 0); |
| Expect.isTrue(a.lastIndexOf(0, 6) == 6); |
| Expect.isTrue(a.lastIndexOf(42, 5) == 3); |
| Expect.isTrue(a.lastIndexOf(42, 3) == 3); |
| Expect.isTrue(a.lastIndexOf(42, 2) == 0); |
| Expect.isTrue(a.lastIndexOf(6031769, 5) == 5); |
| Expect.isTrue(a.lastIndexOf(6031769, 6) == 5); |
| Expect.isTrue(a.lastIndexOf(0, 1) == 1); |
| Expect.isTrue(a.lastIndexOf(0, 2) == 1); |
| Expect.isTrue(a.lastIndexOf(0, 5) == 1); |
| Expect.isTrue(a.lastIndexOf(0, 6) == 6); |
| } |
| |
| test(List create([int length])) { |
| List a = create(); |
| a.addAll(const [42, 0, -1, 42, -1, 6031769, 0]); |
| check(a); |
| |
| List b = create(a.length); |
| b.setRange(0, a.length, a); |
| check(b); |
| } |