thin-provisioning-tools/unit-tests/endian_t.cc

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2011-12-06 19:23:05 +05:30
// Copyright (C) 20011 Red Hat, Inc. All rights reserved.
//
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// This file is part of the thin-provisioning-tools source.
//
// thin-provisioning-tools is free software: you can redistribute it
// and/or modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation, either version 3 of
// the License, or (at your option) any later version.
//
// thin-provisioning-tools 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with thin-provisioning-tools. If not, see
// <http://www.gnu.org/licenses/>.
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#include "space_map_disk.h"
#include "core_map.h"
#define BOOST_TEST_MODULE EndianTests
#include <boost/test/included/unit_test.hpp>
using namespace base;
using namespace boost;
using namespace persistent_data;
using namespace std;
//----------------------------------------------------------------
BOOST_AUTO_TEST_CASE(bitmaps)
{
unsigned NR_BITS = 10247;
vector<uint64_t> data((NR_BITS + 63) / 64, 0);
// check all bits are zero
void *bits = &data[0];
for (unsigned i = 0; i < NR_BITS; i++)
BOOST_CHECK(!test_bit_le(bits, i));
// set all bits to one
for (unsigned i = 0; i < NR_BITS; i++)
set_bit_le(bits, i);
// check they're all 1 now
for (unsigned i = 0; i < NR_BITS; i++)
BOOST_CHECK(test_bit_le(bits, i));
// clear every third bit
for (unsigned i = 0; i < NR_BITS; i += 3)
clear_bit_le(bits, i);
// check everything is as we expect
for (unsigned i = 0; i < NR_BITS; i++) {
if ((i % 3) == 0)
BOOST_CHECK(!test_bit_le(bits, i));
else
BOOST_CHECK(test_bit_le(bits, i));
}
}
BOOST_AUTO_TEST_CASE(bitmaps_alternate_words)
{
unsigned NR_BITS = 10247;
vector<uint64_t> data((NR_BITS + 63) / 64, 0);
// check all bits are zero
void *bits = &data[0];
for (unsigned i = 0; i < 128; i++)
BOOST_CHECK(!test_bit_le(bits, i));
for (unsigned i = 0; i < 64; i++)
set_bit_le(bits, i);
for (unsigned i = 64; i < 128; i++)
BOOST_CHECK(!test_bit_le(bits, i));
}
//----------------------------------------------------------------