// $Id: DumpRestoreTest.cc 113 2008-09-07 15:25:51Z tb $
/*
* STX B+ Tree Template Classes v0.8.3
* Copyright (C) 2008 Timo Bingmann
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by the
* Free Software Foundation; either version 2.1 of the License, or (at your
* option) any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <cppunit/extensions/HelperMacros.h>
#include <stdlib.h>
#include <sstream>
#include <iostream>
#include <stx/btree_multiset.h>
class DumpRestoreTest : public CPPUNIT_NS::TestFixture
{
CPPUNIT_TEST_SUITE( DumpRestoreTest );
CPPUNIT_TEST(test_dump_restore_3200);
CPPUNIT_TEST_SUITE_END();
protected:
struct traits_nodebug
{
static const bool selfverify = true;
static const bool debug = false;
static const int leafslots = 8;
static const int innerslots = 8;
};
void test_dump_restore_3200()
{
typedef stx::btree_multiset<unsigned int,
std::less<unsigned int>, struct traits_nodebug> btree_type;
std::string dumpstr;
{
btree_type bt;
srand(34234235);
for(unsigned int i = 0; i < 3200; i++)
{
bt.insert(rand() % 100);
}
CPPUNIT_ASSERT(bt.size() == 3200);
std::ostringstream os;
bt.dump(os);
dumpstr = os.str();
}
// Also cannot check the length, because it depends on the rand()
// algorithm in stdlib.
// CPPUNIT_ASSERT( dumpstr.size() == 47772 );
// cannot check the string with a hash function, because it contains
// memory pointers
{ // restore the btree image
btree_type bt2;
std::istringstream iss(dumpstr);
CPPUNIT_ASSERT( bt2.restore(iss) );
CPPUNIT_ASSERT( bt2.size() == 3200 );
srand(34234235);
for(unsigned int i = 0; i < 3200; i++)
{
CPPUNIT_ASSERT( bt2.exists(rand() % 100) );
}
}
{ // try restore the btree image using a different instantiation
typedef stx::btree_multiset<long long,
std::less<long long>, struct traits_nodebug> otherbtree_type;
otherbtree_type bt3;
std::istringstream iss(dumpstr);
CPPUNIT_ASSERT( !bt3.restore(iss) );
}
}
};
CPPUNIT_TEST_SUITE_REGISTRATION( DumpRestoreTest );
