Data Encoding Tutorials - Herong's Tutorial Examples - v5.22, by Herong Yang
Goetz' Implementation of Base64 in JavaScript - Test
This section provides a test program for the JavaScript implementation of the Base64 encoding algorithm by Goetz Heller.
To test JavaScript implementation of the Base64 encoding algorithm listed in the previous section, I wrote this simple testing page:
<html>
<!-- JavaScript_Base64_Test.html
-- Copyright (c) 2007 HerongYang.com. All Rights Reserved.
-->
<head>
<title>JavaScript Base64 Test</title>
<script type="text/javascript" src="Goetz_Base64.js"></script>
</head>
<body>
<pre>
<script type="text/javascript">
document.write('\nTest 1:\n');
test("A", "QQ==");
document.write('\nTest 2:\n');
test("AB", "QUI=");
document.write('\nTest 3:\n');
test("ABC", "QUJD");
function test(theInput, theExpected) {
theEncoded = base64.encode(theInput,false,false);
theDecoded = base64.decode(theEncoded,1,false,true);
document.write(' Input : '+theInput+'\n');
document.write(' Encoded : '+theEncoded+'\n');
document.write(' Expected: '+theExpected+'\n');
document.write(' Decoded : '+theDecoded+'\n');
}
</script>
</pre>
</body>
</html>
If you open the test page in a browser, you will see:
Test 1: Input : A Encoded : QQ== Expected: QQ== Decoded : A Test 2: Input : AB Encoded : QUI= Expected: QUI= Decoded : AB Test 3: Input : ABC Encoded : QUJD Expected: QUJD Decoded : ABC
The result matches my expectation perfectly.
Table of Contents
RFC 1421 - Privacy Enhancement for Email
RFC 1521 - MIME (Multipurpose Internet Mail Extensions)
W3C Implementation of Base64 in Java
Sun Implementation of Base64 in Java
Sun Implementation of Base64 in Java - Test
Goetz' Implementation of Base64 in JavaScript
►Goetz' Implementation of Base64 in JavaScript - Test
Base64 Encoding and Decoding Tools
Base64URL - URL Safe Base64 Encoding