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 32 function CheckSetArrayLength(x, expected) { 33 var a = []; 34 a.length = x; 35 36 assertEquals("number", typeof a.length); 37 assertEquals(expected, a.length); 38 } 39 40 CheckSetArrayLength(2147483648, 2147483648); 41 CheckSetArrayLength("2147483648", 2147483648); 42 CheckSetArrayLength(null, 0); 43 CheckSetArrayLength(false, 0); 44 CheckSetArrayLength(true, 1); 45 CheckSetArrayLength({valueOf : function() { return 42; }}, 42); 46 CheckSetArrayLength({toString : function() { return '42'; }}, 42); 47 48 // Test invalid values 49 assertThrows("var y = []; y.length = 'abc';"); 50 assertThrows("var y = []; y.length = undefined;"); 51 assertThrows("var y = []; y.length = {};"); 52 assertThrows("var y = []; y.length = -1;"); 53 assertThrows("var y = []; y.length = {valueOf:function() { throw new Error(); }};"); 54
