15.2.3.7-6-a-4.js (737B)
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-4 6 description: > 7 Object.defineProperties - 'P' is own data property that overrides 8 an inherited accessor property (8.12.9 step 1 ) 9 ---*/ 10 11 var proto = {}; 12 Object.defineProperty(proto, "prop", { 13 get: function() { 14 return 11; 15 }, 16 configurable: true 17 }); 18 var Con = function() {}; 19 Con.prototype = proto; 20 21 var obj = new Con(); 22 Object.defineProperty(obj, "prop", { 23 value: 12, 24 configurable: false 25 }); 26 assert.throws(TypeError, function() { 27 Object.defineProperties(obj, { 28 prop: { 29 value: 13, 30 configurable: true 31 } 32 }); 33 }); 34 35 reportCompare(0, 0);