15.2.3.6-3-157.js (929B)
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: 15.2.3.6-3-157 6 description: > 7 Object.defineProperty - 'writable' property in 'Attributes' is own 8 data property that overrides an inherited accessor property 9 (8.10.5 step 6.a) 10 ---*/ 11 12 var obj = {}; 13 14 var proto = {}; 15 Object.defineProperty(proto, "writable", { 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, "writable", { 26 value: true 27 }); 28 29 Object.defineProperty(obj, "property", child); 30 31 var beforeWrite = obj.hasOwnProperty("property"); 32 33 obj.property = "isWritable"; 34 35 var afterWrite = (obj.property === "isWritable"); 36 37 assert.sameValue(beforeWrite, true, 'beforeWrite'); 38 assert.sameValue(afterWrite, true, 'afterWrite'); 39 40 reportCompare(0, 0);