gecko/js/tests/ecma_2/Exceptions/boolean-002.js

47 lines
1.1 KiB
JavaScript

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/**
File Name: boolean-001.js
Description: Corresponds to ecma/Boolean/15.6.4.3-4-n.js
15.6.4.3 Boolean.prototype.valueOf()
Returns this boolean value.
The valueOf function is not generic; it generates
a runtime error if its this value is not a Boolean
object. Therefore it cannot be transferred to other
kinds of objects for use as a method.
Author: christine@netscape.com
Date: 09 september 1998
*/
var SECTION = "boolean-002.js";
var VERSION = "JS1_4";
var TITLE = "Boolean.prototype.valueOf()";
startTest();
writeHeaderToLog( SECTION +" "+ TITLE );
var exception = "No exception thrown";
var result = "Failed";
var VALUE_OF = Boolean.prototype.valueOf;
try {
var s = new String("Not a Boolean");
s.valueOf = VALUE_0F;
s.valueOf();
} catch ( e ) {
result = "Passed!";
exception = e.toString();
}
new TestCase(
SECTION,
"Assigning Boolean.prototype.valueOf to a String object "+
"(threw " +exception +")",
"Passed!",
result );
test();