15.2.3.6-4-339.js (1044B)
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: 15.2.3.6-4-339 6 description: > 7 ES5 Attributes - fail to update the data property ([[Writable]] is 8 true, [[Enumerable]] is true, [[Configurable]] is false) to an 9 accessor property 10 ---*/ 11 12 var obj = {}; 13 14 Object.defineProperty(obj, "prop", { 15 value: 2010, 16 writable: true, 17 enumerable: true, 18 configurable: false 19 }); 20 var propertyDefineCorrect = obj.hasOwnProperty("prop"); 21 var desc1 = Object.getOwnPropertyDescriptor(obj, "prop"); 22 23 function getFunc() { 24 return 20; 25 } 26 assert.throws(TypeError, function() { 27 Object.defineProperty(obj, "prop", { 28 get: getFunc 29 }); 30 }); 31 var desc2 = Object.getOwnPropertyDescriptor(obj, "prop"); 32 assert(propertyDefineCorrect, 'propertyDefineCorrect !== true'); 33 assert.sameValue(desc1.value, 2010, 'desc1.value'); 34 assert.sameValue(obj.prop, 2010, 'obj.prop'); 35 assert.sameValue(typeof desc2.get, "undefined", 'typeof desc2.get'); 36 37 reportCompare(0, 0);