test262/test/built-ins/Object/defineProperty/15.2.3.6-4-563.js

59 lines
1.6 KiB
JavaScript

// Copyright (c) 2012 Ecma International. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es5id: 15.2.3.6-4-563
description: >
ES5 Attributes - fail to update [[Enumerable]] attribute of
accessor property ([[Get]] is a Function, [[Set]] is a Function,
[[Enumerable]] is false, [[Configurable]] is false) to different
value
includes: [runTestCase.js]
---*/
function testcase() {
var obj = {};
var getFunc = function () {
return 1001;
};
var verifySetFunc = "data";
var setFunc = function (value) {
verifySetFunc = value;
};
Object.defineProperty(obj, "prop", {
get: getFunc,
set: setFunc,
enumerable: false,
configurable: false
});
var result1 = false;
var desc1 = Object.getOwnPropertyDescriptor(obj, "prop");
for (var p1 in obj) {
if (p1 === "prop") {
result1 = true;
}
}
try {
Object.defineProperty(obj, "prop", {
enumerable: true
});
return false;
} catch (e) {
var result2 = false;
var desc2 = Object.getOwnPropertyDescriptor(obj, "prop");
for (var p2 in obj) {
if (p2 === "prop") {
result2 = true;
}
}
return !result1 && !result2 && desc1.enumerable === false && desc2.enumerable === false && e instanceof TypeError;
}
}
runTestCase(testcase);