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// vim: syntax=cpp
/*
* Copyright (C) 2007-2023 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/string.h"
#include "bu/hash.h"
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
typedef Bu::Hash<Bu::String, int> StrIntHash;
typedef Bu::Hash<Bu::String, Bu::String> StrStrHash;
typedef Bu::Hash<int, Bu::String> IntStrHash;
suite Hash
{
test probe1
{
StrIntHash h;
char buf[20];
for(int i=1;i<10000;i++)
{
sprintf(buf,"%d",i);
Bu::String sTmp(buf);
h[sTmp] = i;
unitTest( h.has(sTmp) );
}
}
test insert1
{
StrIntHash h;
h["Hi"] = 42;
unitTest( h["Hi"] == 42 );
}
test insert2
{
StrStrHash h;
h["Hi"] = "Yo";
h["Bye"] = "Later";
unitTest( h["Hi"].getValue() == "Yo" );
StrStrHash h2(h);
unitTest( h2["Hi"].getValue() == "Yo" );
unitTest( h2["Bye"].getValue() == "Later" );
StrStrHash h3;
h3 = h;
unitTest( h3["Hi"].getValue() == "Yo" );
unitTest( h3["Bye"].getValue() == "Later" );
}
test insert3
{
IntStrHash h;
for( unsigned int i=1; i<50; i++ )
{
h[i] = "testing";
unitTest( h.getSize() == i );
}
}
test erase1
{
StrIntHash h;
h.insert("Number 1", 1 );
h.insert("Number 2", 2 );
h.insert("Number 3", 3 );
h.erase("Number 2");
h.get("Number 3");
try {
h.get("Number 2");
unitFailed("h.get(\"Number 2\") should have thrown an exception.");
} catch( Bu::HashException &e ) { }
/* printf("\n");
for( StrIntHash::iterator i = h.begin(); i != h.end(); i++ )
{
printf(" - \"%s\" = %d\n", i.getKey().getStr(), i.getValue() );
} */
}
test copy
{
StrIntHash h;
h.insert("hello", 55 );
h.insert("goodbye", -1812 );
StrIntHash h2 = h;
unitTest( h2.isCoreShared( h ) );
StrIntHash h3 = h.clone();
unitTest( !h3.isCoreShared( h ) );
}
test reHashSpecial
{
IntStrHash hTest;
setStepCount( 1000000 );
for( int i=0; i<1000000; ++i )
{
char buf[40]; snprintf(buf,40,"num%d",i);
incProgress();
if( ((double)random()/(double)RAND_MAX)<.01 )
{
//printf("ERASE: %d (%s)\n",i%64,buf);
hTest.erase(i%64);
}
else
{
hTest[i%64]=buf;
}
/*printf("(%d) size: %u fill: %u cap:%u\n",
i,
hTest.getSize(),
hTest.getFill(),
hTest.getCapacity()
);*/
}
}
test stress
{
srandom(time(NULL));
IntStrHash hTest;
IntStrHash hReUse;
setStepCount( 100000 );
for( int i=0; i<100000; ++i )
{
char buf[40]; snprintf(buf,40,"num%d",i);
hTest[i] = buf;
incProgress();
if( ((double)random()/(double)RAND_MAX)<.01 )
{
Bu::List<int> lKeys = hReUse.getKeys();
Bu::List<int>::const_iterator it = lKeys.begin();
int iIdx = (int)(((double)random()/(double)RAND_MAX)
*lKeys.getSize());
for( int l=0; it; ++it, ++l )
{
if( l==iIdx )
{
int iVal = *it;
hReUse.erase( *it );
char buf[40]; snprintf(buf,40,"num%d",iVal);
hTest[i] = buf;
//printf("re-use: %s\n",buf);
}
}
}
/*printf("(%s) size: %u fill: %u cap:%u\n",
buf,
hTest.getSize(),
hTest.getFill(),
hTest.getCapacity()
);*/
if( ((double)random()/(double)RAND_MAX)<.3 )
{
Bu::List<int> lKeys = hTest.getKeys();
int iIdx = (int)(((double)random()/(double)RAND_MAX)
*lKeys.getSize());
Bu::List<int>::const_iterator it = lKeys.begin();
for( int k=0; it; ++it, ++k )
{
if( k == iIdx )
{
hReUse.insert(*it,"yo");
hTest.erase( *it );
}
}
}
if( hTest.getSize() > 100 )
{
int iK = (int)(((double)random()/(double)RAND_MAX)*50)+10;
for( int j=0; j<iK; ++j )
{
Bu::List<int> lKeys = hTest.getKeys();
int iIdx = (int)(((double)random()/(double)RAND_MAX)
*lKeys.getSize());
Bu::List<int>::const_iterator it = lKeys.begin();
for( int k=0; it; ++it, ++k )
{
if( k == iIdx )
{
hReUse.insert(*it,"yo");
hTest.erase( *it );
break;
}
}
}
}
}
}
}
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