15.2.3.7-6-a-3.js (706B)
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: 15.2.3.7-6-a-3 6 description: > 7 Object.defineProperties - 'P' is own data property that overrides 8 an inherited data property (8.12.9 step 1 ) 9 ---*/ 10 11 var proto = {}; 12 Object.defineProperty(proto, "prop", { 13 value: 11, 14 configurable: true 15 }); 16 var Con = function() {}; 17 Con.prototype = proto; 18 19 var obj = new Con(); 20 Object.defineProperty(obj, "prop", { 21 value: 12, 22 configurable: false 23 }); 24 assert.throws(TypeError, function() { 25 Object.defineProperties(obj, { 26 prop: { 27 value: 13, 28 configurable: true 29 } 30 }); 31 }); 32 33 reportCompare(0, 0);