test262/test/built-ins/isFinite/S15.1.2.5_A2.3.js

17 lines
560 B
JavaScript

// Copyright 2009 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
info: The length property of isFinite has the attribute ReadOnly
es5id: 15.1.2.5_A2.3
description: Checking if varying the length property fails
includes: [propertyHelper.js]
---*/
//CHECK#1
var x = isFinite.length;
verifyNotWritable(isFinite, "length", null, Infinity);
if (isFinite.length !== x) {
$ERROR('#1: x = isFinite.length; isFinite.length = Infinity; isFinite.length === x. Actual: ' + (isFinite.length));
}