jetty-util/src/test/java/org/eclipse/jetty/util/B64CodeTest.java

//
//  ========================================================================
//  Copyright (c) 1995-2016 Mort Bay Consulting Pty. Ltd.
//  ------------------------------------------------------------------------
//  All rights reserved. This program and the accompanying materials
//  are made available under the terms of the Eclipse Public License v1.0
//  and Apache License v2.0 which accompanies this distribution.
//
//      The Eclipse Public License is available at
//      http://www.eclipse.org/legal/epl-v10.html
//
//      The Apache License v2.0 is available at
//      http://www.opensource.org/licenses/apache2.0.php
//
//  You may elect to redistribute this code under either of these licenses.
//  ========================================================================
//

package org.eclipse.jetty.util;

import java.nio.charset.StandardCharsets;

import org.junit.Assert;
import org.junit.Test;

public class B64CodeTest
{
    String text = "Man is distinguished, not only by his reason, but by this singular passion from other animals, which is a lust of the mind, that by a perseverance of delight in the continued and indefatigable generation of knowledge, exceeds the short vehemence of any carnal pleasure.";
    
    @Test
    public void testRFC1421() throws Exception
    {
        String b64 = B64Code.encode(text, StandardCharsets.ISO_8859_1);
        Assert.assertEquals("TWFuIGlzIGRpc3Rpbmd1aXNoZWQsIG5vdCBvbmx5IGJ5IGhpcyByZWFzb24sIGJ1dCBieSB0aGlz"+
                "IHNpbmd1bGFyIHBhc3Npb24gZnJvbSBvdGhlciBhbmltYWxzLCB3aGljaCBpcyBhIGx1c3Qgb2Yg"+
                "dGhlIG1pbmQsIHRoYXQgYnkgYSBwZXJzZXZlcmFuY2Ugb2YgZGVsaWdodCBpbiB0aGUgY29udGlu"+
                "dWVkIGFuZCBpbmRlZmF0aWdhYmxlIGdlbmVyYXRpb24gb2Yga25vd2xlZGdlLCBleGNlZWRzIHRo"+
                "ZSBzaG9ydCB2ZWhlbWVuY2Ugb2YgYW55IGNhcm5hbCBwbGVhc3VyZS4=",b64);
        
        char[] chars = B64Code.encode(text.getBytes(StandardCharsets.ISO_8859_1),false);
        b64 = new String(chars,0,chars.length);
        Assert.assertEquals("TWFuIGlzIGRpc3Rpbmd1aXNoZWQsIG5vdCBvbmx5IGJ5IGhpcyByZWFzb24sIGJ1dCBieSB0aGlz"+
                "IHNpbmd1bGFyIHBhc3Npb24gZnJvbSBvdGhlciBhbmltYWxzLCB3aGljaCBpcyBhIGx1c3Qgb2Yg"+
                "dGhlIG1pbmQsIHRoYXQgYnkgYSBwZXJzZXZlcmFuY2Ugb2YgZGVsaWdodCBpbiB0aGUgY29udGlu"+
                "dWVkIGFuZCBpbmRlZmF0aWdhYmxlIGdlbmVyYXRpb24gb2Yga25vd2xlZGdlLCBleGNlZWRzIHRo"+
                "ZSBzaG9ydCB2ZWhlbWVuY2Ugb2YgYW55IGNhcm5hbCBwbGVhc3VyZS4=",b64);
        
    }

    @Test
    public void testRFC2045() throws Exception
    {
        char[] chars = B64Code.encode(text.getBytes(StandardCharsets.ISO_8859_1),true);
        String b64 = new String(chars,0,chars.length);
        Assert.assertEquals("TWFuIGlzIGRpc3Rpbmd1aXNoZWQsIG5vdCBvbmx5IGJ5IGhpcyByZWFzb24sIGJ1dCBieSB0aGlz\r\n"+
                "IHNpbmd1bGFyIHBhc3Npb24gZnJvbSBvdGhlciBhbmltYWxzLCB3aGljaCBpcyBhIGx1c3Qgb2Yg\r\n"+
                "dGhlIG1pbmQsIHRoYXQgYnkgYSBwZXJzZXZlcmFuY2Ugb2YgZGVsaWdodCBpbiB0aGUgY29udGlu\r\n"+
                "dWVkIGFuZCBpbmRlZmF0aWdhYmxlIGdlbmVyYXRpb24gb2Yga25vd2xlZGdlLCBleGNlZWRzIHRo\r\n"+
                "ZSBzaG9ydCB2ZWhlbWVuY2Ugb2YgYW55IGNhcm5hbCBwbGVhc3VyZS4=\r\n",b64);
        
    }
    

    @Test
    public void testInteger() throws Exception
    {
        byte[] bytes = text.getBytes(StandardCharsets.ISO_8859_1);
        int value=(bytes[0]<<24)+(bytes[1]<<16)+(bytes[2]<<8)+(bytes[3]);
        
        StringBuilder b = new StringBuilder();
        B64Code.encode(value,b);
        Assert.assertEquals("TWFuIA=",b.toString());
    }
    @Test
    public void testLong() throws Exception
    {
        byte[] bytes = text.getBytes(StandardCharsets.ISO_8859_1);
        long value=((0xffL&bytes[0])<<56)+((0xffL&bytes[1])<<48)+((0xffL&bytes[2])<<40)+((0xffL&bytes[3])<<32)+
                ((0xffL&bytes[4])<<24)+((0xffL&bytes[5])<<16)+((0xffL&bytes[6])<<8)+(0xffL&bytes[7]);
        
        StringBuilder b = new StringBuilder();
        B64Code.encode(value,b);
        Assert.assertEquals("TWFuIGlzIGQ",b.toString());
    }
}