LibTest/collection/UnmodifiableListView/lastIndexOf_A02_t02.test.dart

// 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.

// @dart = 2.9

/// @assertion  int lastIndexOf(Object element, [ int startIndex ])
/// Returns [-1] if [element] is not found.
/// @description Checks that [-1] is returned, if the [element] is not present in
/// the list and [start] index is clearly set to the list length
/// @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(-1, a.lastIndexOf(3.14, 6));
  Expect.equals(-1, a.lastIndexOf(null, 6));
  Expect.equals(-1, a.lastIndexOf(a, 6));
  Expect.equals(-1, a.lastIndexOf(8, 6));
}