1// Copyright 2011 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// Test that Object.prototype.propertyIsEnumerable handles array indices 29// correctly. 30 31var p = Object.create({}, { 32 a : { value : 42, enumerable : true }, 33 b : { value : 42, enumerable : false }, 34 1 : { value : 42, enumerable : true }, 35 2 : { value : 42, enumerable : false }, 36 f : { get: function(){}, enumerable: true }, 37 g : { get: function(){}, enumerable: false }, 38 11 : { get: function(){}, enumerable: true }, 39 12 : { get: function(){}, enumerable: false } 40}); 41var o = Object.create(p, { 42 c : { value : 42, enumerable : true }, 43 d : { value : 42, enumerable : false }, 44 3 : { value : 42, enumerable : true }, 45 4 : { value : 42, enumerable : false }, 46 h : { get: function(){}, enumerable: true }, 47 k : { get: function(){}, enumerable: false }, 48 13 : { get: function(){}, enumerable: true }, 49 14 : { get: function(){}, enumerable: false } 50}); 51 52// Inherited properties are ignored. 53assertFalse(o.propertyIsEnumerable("a")); 54assertFalse(o.propertyIsEnumerable("b")); 55assertFalse(o.propertyIsEnumerable("1")); 56assertFalse(o.propertyIsEnumerable("2")); 57 58// Own properties. 59assertTrue(o.propertyIsEnumerable("c")); 60assertFalse(o.propertyIsEnumerable("d")); 61assertTrue(o.propertyIsEnumerable("3")); 62assertFalse(o.propertyIsEnumerable("4")); 63 64// Inherited accessors. 65assertFalse(o.propertyIsEnumerable("f")); 66assertFalse(o.propertyIsEnumerable("g")); 67assertFalse(o.propertyIsEnumerable("11")); 68assertFalse(o.propertyIsEnumerable("12")); 69 70// Own accessors. 71assertTrue(o.propertyIsEnumerable("h")); 72assertFalse(o.propertyIsEnumerable("k")); 73assertTrue(o.propertyIsEnumerable("13")); 74assertFalse(o.propertyIsEnumerable("14")); 75 76// Nonexisting properties. 77assertFalse(o.propertyIsEnumerable("xxx")); 78assertFalse(o.propertyIsEnumerable("999")); 79 80// String object properties. 81var o = Object("string"); 82// Non-string property on String object. 83o[10] = 42; 84assertTrue(o.propertyIsEnumerable(10)); 85assertTrue(o.propertyIsEnumerable(0)); 86 87// Fast elements. 88var o = [1,2,3,4,5]; 89assertTrue(o.propertyIsEnumerable(3)); 90