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/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/**
File Name: number-003.js
Corresponds To: 15.7.4.3-3.js
ECMA Section: 15.7.4.3.1 Number.prototype.valueOf()
Description:
Returns this number value.
The valueOf function is not generic; it generates a runtime error if its
this value is not a Number object. Therefore it cannot be transferred to
other kinds of objects for use as a method.
Author: christine@netscape.com
Date: 16 september 1997
*/
var SECTION = "number-003";
var VERSION = "JS1_4";
var TITLE = "Exceptions for Number.valueOf()";
startTest();
writeHeaderToLog( SECTION + " Number.prototype.valueOf()");
var result = "Failed";
var exception = "No exception thrown";
var expect = "Passed";
try {
VALUE_OF = Number.prototype.valueOf;
OBJECT = new String("Infinity");
OBJECT.valueOf = VALUE_OF;
result = OBJECT.valueOf();
} catch ( e ) {
result = expect;
exception = e.toString();
}
new TestCase(
SECTION,
"Assigning Number.prototype.valueOf as the valueOf of a String object " +
" (threw " + exception +")",
expect,
result );
test();
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