15.2.3.6-3-82.js (975B)
1 // Copyright (c) 2012 Ecma International. All rights reserved. 2 // This code is governed by the BSD license found in the LICENSE file. 3 4 /*--- 5 es5id: 15.2.3.6-3-82 6 description: > 7 Object.defineProperty - 'configurable' property in 'Attributes' is 8 own accessor property that overrides an inherited accessor 9 property (8.10.5 step 4.a) 10 ---*/ 11 12 var obj = {}; 13 14 var proto = {}; 15 Object.defineProperty(proto, "configurable", { 16 get: function() { 17 return false; 18 } 19 }); 20 21 var ConstructFun = function() {}; 22 ConstructFun.prototype = proto; 23 24 var child = new ConstructFun(); 25 Object.defineProperty(child, "configurable", { 26 get: function() { 27 return true; 28 } 29 }); 30 31 Object.defineProperty(obj, "property", child); 32 33 var beforeDeleted = obj.hasOwnProperty("property"); 34 35 delete obj.property; 36 37 var afterDeleted = obj.hasOwnProperty("property"); 38 39 assert.sameValue(beforeDeleted, true, 'beforeDeleted'); 40 assert.sameValue(afterDeleted, false, 'afterDeleted'); 41 42 reportCompare(0, 0);