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// vim: syntax=cpp
/*
 * Copyright (C) 2007-2013 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 <stdlib.h>
#include <time.h>

#include "bu/queuebuf.h"
#include "bu/md5.h"

#define RNDCHR ((char)(((double)random()/(double)RAND_MAX)*256.0))

suite QueueBuf
{
    test testBasic01
    {
        Bu::QueueBuf qb;
        unitTest( qb.write("ab", 2 ) == 2 );
        unitTest( qb.write("cde", 3 ) == 3 );
        unitTest( qb.write("FG", 2 ) == 2 );

        char buf[8];
        buf[7] = '\0';
        unitTest( qb.read( buf, 7 ) == 7 );
        unitTest( !strncmp( buf, "abcdeFG", 7 ) );
        unitTest( qb.read( buf, 7 ) == 0 );
    }

    void QBUF_RANDSTR( Bu::String &fill, unsigned int iSize )
    {
        char c;
        for( unsigned int i=0; i<iSize; ++i )
        {
            c = RNDCHR;
            fill.append(&c,1);
        }
    }

    test testAmounts
    {
        srandom(time(NULL));
        Bu::QueueBuf qb;
        Bu::String sTmp;
        char buf[4096];

        for( int i=0; i<200; ++i )
        {
            unsigned int iAmt = (int)RNDCHR+128;
            sTmp.clear();
            QBUF_RANDSTR( sTmp, iAmt );
            unitTest( qb.write( sTmp.getStr(), sTmp.getSize() ) == 
                (uint32_t)sTmp.getSize() );
            size_t iRead = qb.read( buf, 4096 );
            unitTest( iRead == iAmt );
        }
    }

    void QBUF_HEXOUT( const char *s, int iSize )
    {
        for( int i=0; i<iSize; ++i )
            printf("%02x",(int)(uint8_t)s[i]);
    }

    void QBUF_HASH( Bu::String &fill, const char *s, int iSize )
    {
        Bu::Md5 hash;
        hash.reset();
        hash.addData( s, iSize );
        const Bu::String &sTmp = hash.getResult();
        fill.append( sTmp.getStr(), 16 );
    }

    test testRandomData
    {
        srandom(time(NULL));
        Bu::QueueBuf qb;
        Bu::String sTmp;
        Bu::String sTmp2;
        char buf[4096];

        for( int i=0; i<200; ++i )
        {
            uint32_t iAmt = (uint32_t)RNDCHR+128;
            sTmp.clear();
            sTmp.append( (const char *)&iAmt, 4 );
            QBUF_RANDSTR( sTmp, iAmt );
            sTmp2.clear();
            QBUF_HASH( sTmp2, sTmp.getStr()+4, iAmt );
            sTmp.append( sTmp2 );
            unitTest( qb.write( sTmp.getStr(), sTmp.getSize() ) == 
                (uint32_t)sTmp.getSize() );
            size_t iRead = qb.read( buf, 4096 );
            uint32_t iGotSize = *((uint32_t *)buf);
            unitTest( iRead == iGotSize+4+16 );
            sTmp2.clear();
            QBUF_HASH( sTmp2, buf+4, iGotSize );
            unitTest( !strncmp(sTmp2.getStr(),buf+4+iGotSize,16) );
        }
    }
}