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// vim: syntax=cpp
/*
 * Copyright (C) 2007-2010 Xagasoft, All rights reserved.
 *
 * This file is part of the libbu++ library and is released under the
 * terms of the license contained in the file LICENSE.
 */

#include "bu/md5.h"

#include <stdlib.h>

suite Md5
{
	test basics
	{
#define tryStr( a, b ) \
	{ Bu::Md5 m; m.addData(a); unitTest( m.getHexResult() == b ); } (void)0
		tryStr("", "d41d8cd98f00b204e9800998ecf8427e");
		tryStr("a", "0cc175b9c0f1b6a831c399e269772661");
		tryStr("abc", "900150983cd24fb0d6963f7d28e17f72");
		tryStr("message digest", "f96b697d7cb7938d525a2f31aaf161d0");
		tryStr("abcdefghijklmnopqrstuvwxyz",
			"c3fcd3d76192e4007dfb496cca67e13b");
		tryStr("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789",
			"d174ab98d277d9f5a5611c2c9f419d9f");
		tryStr("12345678901234567890123456789012345"
			"678901234567890123456789012345678901234567890",
			"57edf4a22be3c955ac49da2e2107b67a");
	}

	test twoChunks
	{
		Bu::Md5 m;
		m.addData("12345678901234567890123456789012345");
		m.addData("678901234567890123456789012345678901234567890");
		unitTest( m.getHexResult() == "57edf4a22be3c955ac49da2e2107b67a" );
	}

	test biggerBlocks
	{
		const char *sums[33] = {
			"75fcf199abe516903321095a588b938d",
			"e26a863c96d6bdba6601175aedaae108",
			"2b207fdcb222078d3ebfeb8d5e7c9315",
			"b08683aaa465add72cc2b43ae42f4f70",
			"638bb73963b2d925771c3579ccb5e879",
			"c727bd4b48a88e3df5924a2604de0790",
			"f33d21203c80490f7342e5853c5550eb",
			"db449faca66a177aae59b1e36a19d053",
			"c800d429afb5f5c820f75c2c94e2e2bb",
			"43b79c70b9a6a11e823ffbfa0f45a4db",
			"0177ffc483cf598ae3966b3a5ae00c8c",
			"1a68fdf4b17a3820d48d101e9355a818"
		};

		char block[128];
		for( int i = 0; i < 128; i++ )
			block[i] = i*2;

		const char **curSum = sums;
		for( int j = 1; j < 4096; j*=2 )
		{
			/*
			Bu::File fOut("temp", Bu::File::WriteNew );
			for( int b = 0; b < j; b++ )
			{
				fOut.write( block, 128 );
			}
			fOut.close();
			system("md5sum -b temp");
			*/
			Bu::Md5 m;
			for( int b = 0; b < j; b++ )
			{
				m.addData( block, 128 );
			}
			unitTest( m.getHexResult() == *curSum );
			curSum++;
		} 
	}
}