LibTest/core/List/lastIndexOf_A02_t01.test.dart

// 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.

// @dart = 2.9

/// @assertion abstract int lastIndexOf(E element, [int start])
/// Returns -1 if element is not found.
/// @description Checks that -1 is returned if the element is not present in
/// the list.
/// @author iefremov

library lastIndexOf_A02_t01;

import "../../../Utils/expect.dart";

void check(List a) {
  Expect.isTrue(a.lastIndexOf(3.14, 0) == -1);
  Expect.isTrue(a.lastIndexOf(null, 0) == -1);
  Expect.isTrue(a.lastIndexOf(a, 0) == -1);
  Expect.isTrue(a.lastIndexOf(-1, 1) == -1);
  Expect.isTrue(a.lastIndexOf(6031769, 4) == -1);
}

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);
}