1// Copyright 2008 the V8 project authors. All rights reserved. 2// Redistribution and use in source and binary forms, with or without 3// modification, are permitted provided that the following conditions are 4// met: 5// 6// * Redistributions of source code must retain the above copyright 7// notice, this list of conditions and the following disclaimer. 8// * Redistributions in binary form must reproduce the above 9// copyright notice, this list of conditions and the following 10// disclaimer in the documentation and/or other materials provided 11// with the distribution. 12// * Neither the name of Google Inc. nor the names of its 13// contributors may be used to endorse or promote products derived 14// from this software without specific prior written permission. 15// 16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28// A reduced test case from Acid3 test 95. 29// When an object is assigned to an array length field, 30// it is converted to a number. 31 32function CheckSetArrayLength(x, expected) { 33 var a = []; 34 a.length = x; 35 36 assertEquals("number", typeof a.length); 37 assertEquals(expected, a.length); 38} 39 40CheckSetArrayLength(2147483648, 2147483648); 41CheckSetArrayLength("2147483648", 2147483648); 42CheckSetArrayLength(null, 0); 43CheckSetArrayLength(false, 0); 44CheckSetArrayLength(true, 1); 45CheckSetArrayLength({valueOf : function() { return 42; }}, 42); 46CheckSetArrayLength({toString : function() { return '42'; }}, 42); 47 48// Test invalid values 49assertThrows("var y = []; y.length = 'abc';"); 50assertThrows("var y = []; y.length = undefined;"); 51assertThrows("var y = []; y.length = {};"); 52assertThrows("var y = []; y.length = -1;"); 53assertThrows("var y = []; y.length = {valueOf:function() { throw new Error(); }};"); 54