1// Copyright 2013 the V8 project authors. All rights reserved. 2// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. 3// 4// Redistribution and use in source and binary forms, with or without 5// modification, are permitted provided that the following conditions 6// are met: 7// 1. Redistributions of source code must retain the above copyright 8// notice, this list of conditions and the following disclaimer. 9// 2. Redistributions in binary form must reproduce the above copyright 10// notice, this list of conditions and the following disclaimer in the 11// documentation and/or other materials provided with the distribution. 12// 13// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY 14// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 15// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 16// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY 17// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 18// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 19// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON 20// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 21// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 22// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 23 24description( 25'This tests some sparse array operations.' 26); 27 28var array = [ ]; 29 30array[50000] = 100; 31 32shouldBe('array[0]', 'undefined'); 33shouldBe('array[49999]', 'undefined'); 34shouldBe('array[50000]', '100'); 35shouldBe('array[50001]', 'undefined'); 36array[0]++; 37shouldBe('array[0]', 'NaN'); 38shouldBe('array[49999]', 'undefined'); 39shouldBe('array[50000]', '100'); 40shouldBe('array[50001]', 'undefined'); 41// This tests oscillation between being sparse and dense. 42delete array[50000]; 43array.length = 5; 44array[50000] = 100; 45shouldBe('array[0]', 'NaN'); 46shouldBe('array[49999]', 'undefined'); 47shouldBe('array[50000]', '100'); 48shouldBe('array[50001]', 'undefined'); 49 50debug(''); 51