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 31 var 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 }); 41 var 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. 53 assertFalse(o.propertyIsEnumerable("a")); 54 assertFalse(o.propertyIsEnumerable("b")); 55 assertFalse(o.propertyIsEnumerable("1")); 56 assertFalse(o.propertyIsEnumerable("2")); 57 58 // Own properties. 59 assertTrue(o.propertyIsEnumerable("c")); 60 assertFalse(o.propertyIsEnumerable("d")); 61 assertTrue(o.propertyIsEnumerable("3")); 62 assertFalse(o.propertyIsEnumerable("4")); 63 64 // Inherited accessors. 65 assertFalse(o.propertyIsEnumerable("f")); 66 assertFalse(o.propertyIsEnumerable("g")); 67 assertFalse(o.propertyIsEnumerable("11")); 68 assertFalse(o.propertyIsEnumerable("12")); 69 70 // Own accessors. 71 assertTrue(o.propertyIsEnumerable("h")); 72 assertFalse(o.propertyIsEnumerable("k")); 73 assertTrue(o.propertyIsEnumerable("13")); 74 assertFalse(o.propertyIsEnumerable("14")); 75 76 // Nonexisting properties. 77 assertFalse(o.propertyIsEnumerable("xxx")); 78 assertFalse(o.propertyIsEnumerable("999")); 79 80 // String object properties. 81 var o = Object("string"); 82 // Non-string property on String object. 83 o[10] = 42; 84 assertTrue(o.propertyIsEnumerable(10)); 85 assertFalse(o.propertyIsEnumerable(0)); 86 87 // Fast elements. 88 var o = [1,2,3,4,5]; 89 assertTrue(o.propertyIsEnumerable(3)); 90
