15.2.3.6-4-527.js (1223B)
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: 15.2.3.6-4-527 6 description: > 7 ES5 Attributes - fail to update [[Enumerable]] attribute of 8 accessor property ([[Get]] is a Function, [[Set]] is undefined, 9 [[Enumerable]] is false, [[Configurable]] is false) to different 10 value 11 ---*/ 12 13 var obj = {}; 14 15 var getFunc = function() { 16 return 1001; 17 }; 18 19 Object.defineProperty(obj, "prop", { 20 get: getFunc, 21 set: undefined, 22 enumerable: false, 23 configurable: false 24 }); 25 var result1 = false; 26 var desc1 = Object.getOwnPropertyDescriptor(obj, "prop"); 27 for (var p1 in obj) { 28 if (p1 === "prop") { 29 result1 = true; 30 } 31 } 32 assert.throws(TypeError, function() { 33 Object.defineProperty(obj, "prop", { 34 enumerable: true 35 }); 36 }); 37 var result2 = false; 38 var desc2 = Object.getOwnPropertyDescriptor(obj, "prop"); 39 for (var p2 in obj) { 40 if (p2 === "prop") { 41 result2 = true; 42 } 43 } 44 45 assert.sameValue(result1, false, 'result1'); 46 assert.sameValue(result2, false, 'result2'); 47 assert.sameValue(desc1.enumerable, false, 'desc1.enumerable'); 48 assert.sameValue(desc2.enumerable, false, 'desc2.enumerable'); 49 50 reportCompare(0, 0);