Migrated several tests from blink to V8 repository.

test/webkit/array-lastIndexOf.js

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions
 // are met:
 // 1.  Redistributions of source code must retain the above copyright
 //     notice, this list of conditions and the following disclaimer.
 // 2.  Redistributions in binary form must reproduce the above copyright
 //     notice, this list of conditions and the following disclaimer in the
 //     documentation and/or other materials provided with the distribution.
 //
 // THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 // DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 // ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 description(
-"Tests the behavior of Array.prototype.concat while the array is having a bad time due to one of the elements we are concatenating."
+'This test checks lastIndexOf for various values in an array'
 );
 
-Object.defineProperty(Array.prototype, 0, { writable: false });
-shouldBe("[42].concat()", "[42]");
 
+var testArray = [2, 5, 9, 2];
+var lastIndex = 0;
 
+lastIndex = testArray.lastIndexOf(2,-500);
+shouldBe('lastIndex', '-1');
+lastIndex = testArray.lastIndexOf(9,500);
+shouldBe('lastIndex', '2');
+lastIndex = testArray.lastIndexOf(2);
+shouldBe('lastIndex', '3');
+lastIndex = testArray.lastIndexOf(7);
+shouldBe('lastIndex', '-1');
+lastIndex = testArray.lastIndexOf(2, 3);
+shouldBe('lastIndex', '3');
+lastIndex = testArray.lastIndexOf(2, 2);
+shouldBe('lastIndex', '0');
+lastIndex = testArray.lastIndexOf(2, -2);
+shouldBe('lastIndex', '0');
+lastIndex = testArray.lastIndexOf(2, -1);
+shouldBe('lastIndex', '3');
+
+delete testArray[1];
+
+lastIndex = testArray.lastIndexOf(undefined);
+shouldBe('lastIndex', '-1');
+
+delete testArray[3];
+
+lastIndex = testArray.lastIndexOf(undefined);
+shouldBe('lastIndex', '-1');
+
+testArray = new Array(20);
+
+lastIndex = testArray.lastIndexOf(undefined);
+shouldBe('lastIndex', '-1');
+
+testArray[19] = undefined;
+
+lastIndex = testArray.lastIndexOf(undefined);
+shouldBe('lastIndex', '19');
+
+lastIndex = testArray.lastIndexOf(undefined, 18);
+shouldBe('lastIndex', '-1');
+
+delete testArray[19];
+
+lastIndex = testArray.lastIndexOf(undefined);
+shouldBe('lastIndex', '-1');