test262/test/built-ins/Object/defineProperty/15.2.3.6-3-90-1.js

33 lines
924 B
JavaScript

// Copyright (c) 2012 Ecma International. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
es5id: 15.2.3.6-3-90-1
description: >
Object.defineProperty - 'Attributes' is a Number object that uses
Object's [[Get]] method to access the 'configurable' property
(8.10.5 step 4.a)
includes: [runTestCase.js]
---*/
function testcase() {
var obj = {};
try {
Number.prototype.configurable = true;
var numObj = new Number(-2);
Object.defineProperty(obj, "property", numObj);
var beforeDeleted = obj.hasOwnProperty("property");
delete obj.property;
var afterDeleted = obj.hasOwnProperty("property");
return beforeDeleted === true && afterDeleted === false;
} finally {
delete Number.prototype.configurable;
}
}
runTestCase(testcase);