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

217 lines
5.6 KiB
C++
Raw Normal View History

2011-12-16 00:04:31 +05:30
// Copyright (C) 2011 Red Hat, Inc. All rights reserved.
2011-12-06 19:23:05 +05:30
//
2011-12-06 19:13:56 +05:30
// 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/>.
#include "persistent-data/block.h"
2011-07-13 19:39:33 +05:30
#define BOOST_TEST_MODULE BlockManagerTests
#include <boost/test/included/unit_test.hpp>
using namespace std;
//----------------------------------------------------------------
namespace {
2011-10-24 22:34:19 +05:30
unsigned const MAX_HELD_LOCKS = 16;
block_manager<4096>::ptr create_bm(block_address nr = 1024) {
return block_manager<4096>::ptr(
new block_manager<4096>("./test.data", nr, MAX_HELD_LOCKS, block_io<>::READ_WRITE));
}
2011-07-13 19:39:33 +05:30
template <uint32_t BlockSize>
void check_all_bytes(typename block_manager<BlockSize>::read_ref const &rr, int v) {
persistent_data::buffer<BlockSize> const &data = rr.data();
2011-07-13 19:39:33 +05:30
for (unsigned b = 0; b < BlockSize; b++)
BOOST_CHECK_EQUAL(data[b], v);
}
template <uint32_t BlockSize>
struct zero_validator : public block_manager<BlockSize>::validator {
virtual void check(buffer<BlockSize> const &data, block_address location) const {
2011-07-13 19:39:33 +05:30
for (unsigned b = 0; b < BlockSize; b++)
2011-10-24 22:34:19 +05:30
if (data[b] != 0)
2011-10-21 21:27:28 +05:30
throw runtime_error("validator check zero");
2011-07-13 19:39:33 +05:30
}
virtual void prepare(buffer<BlockSize> &data, block_address location) const {
2011-10-24 22:34:19 +05:30
cerr << "zeroing" << endl;
2011-07-13 19:39:33 +05:30
for (unsigned b = 0; b < BlockSize; b++)
2011-10-24 22:34:19 +05:30
data[b] = 0;
2011-07-13 19:39:33 +05:30
}
};
2011-10-24 22:34:19 +05:30
typedef block_manager<4096> bm4096;
2011-07-13 19:39:33 +05:30
}
//----------------------------------------------------------------
BOOST_AUTO_TEST_CASE(bad_path)
{
BOOST_CHECK_THROW(bm4096("/bogus/bogus/bogus", 1234, 4, block_io<>::READ_WRITE),
runtime_error);
2011-07-13 19:39:33 +05:30
}
BOOST_AUTO_TEST_CASE(out_of_range_access)
{
2011-10-24 22:34:19 +05:30
bm4096::ptr bm = create_bm(1024);
BOOST_CHECK_THROW(bm->read_lock(1024), runtime_error);
2011-07-13 19:39:33 +05:30
}
BOOST_AUTO_TEST_CASE(read_lock_all_blocks)
{
block_address const nr = 64;
2011-10-24 22:34:19 +05:30
bm4096::ptr bm = create_bm(nr);
2011-07-13 19:39:33 +05:30
for (unsigned i = 0; i < nr; i++)
bm->read_lock(i);
2011-07-13 19:39:33 +05:30
}
BOOST_AUTO_TEST_CASE(write_lock_all_blocks)
{
block_address const nr = 64;
2011-10-24 22:34:19 +05:30
bm4096::ptr bm = create_bm(nr);
2011-07-13 19:39:33 +05:30
for (unsigned i = 0; i < nr; i++)
bm->write_lock(i);
2011-07-13 19:39:33 +05:30
}
BOOST_AUTO_TEST_CASE(writes_persist)
{
block_address const nr = 64;
2011-10-24 22:34:19 +05:30
bm4096::ptr bm = create_bm(nr);
2011-07-13 19:39:33 +05:30
for (unsigned i = 0; i < nr; i++) {
2011-10-24 22:34:19 +05:30
bm4096::write_ref wr = bm->write_lock(i);
::memset(wr.data().raw(), i, 4096);
2011-07-13 19:39:33 +05:30
}
for (unsigned i = 0; i < nr; i++) {
2011-10-24 22:34:19 +05:30
bm4096::read_ref rr = bm->read_lock(i);
2011-07-13 19:39:33 +05:30
check_all_bytes<4096>(rr, i % 256);
}
}
BOOST_AUTO_TEST_CASE(write_lock_zero_zeroes)
{
2011-10-24 22:34:19 +05:30
bm4096::ptr bm = create_bm(64);
check_all_bytes<4096>(bm->write_lock_zero(23), 0);
2011-07-13 19:39:33 +05:30
}
BOOST_AUTO_TEST_CASE(different_block_sizes)
{
{
bm4096 bm("./test.data", 64, 1, block_io<>::READ_WRITE);
2011-10-24 22:34:19 +05:30
bm4096::read_ref rr = bm.read_lock(0);
2011-07-13 19:39:33 +05:30
BOOST_CHECK_EQUAL(sizeof(rr.data()), 4096);
}
{
block_manager<64 * 1024> bm("./test.data", 64, 1, block_io<64 * 1024>::READ_WRITE);
2011-10-24 22:34:19 +05:30
block_manager<64 * 1024>::read_ref rr = bm.read_lock(0);
2011-07-13 19:39:33 +05:30
BOOST_CHECK_EQUAL(sizeof(rr.data()), 64 * 1024);
}
}
BOOST_AUTO_TEST_CASE(read_validator_works)
{
2011-10-24 22:34:19 +05:30
bm4096::block_manager::validator::ptr v(new zero_validator<4096>());
bm4096::ptr bm = create_bm(64);
bm->write_lock_zero(0);
bm->read_lock(0, v);
2011-07-13 19:39:33 +05:30
}
BOOST_AUTO_TEST_CASE(write_validator_works)
{
2011-10-24 22:34:19 +05:30
bm4096::ptr bm = create_bm(64);
bm4096::block_manager::validator::ptr v(new zero_validator<4096>());
2011-07-13 19:39:33 +05:30
{
2011-10-24 22:34:19 +05:30
bm4096::write_ref wr = bm->write_lock(0, v);
::memset(wr.data().raw(), 23, sizeof(wr.data().raw()));
2011-07-13 19:39:33 +05:30
}
2011-10-24 22:34:19 +05:30
bm->flush(); // force the prepare method to be called
check_all_bytes<4096>(bm->read_lock(0), 0);
}
BOOST_AUTO_TEST_CASE(cannot_have_two_superblocks)
{
2011-10-24 22:34:19 +05:30
bm4096::ptr bm = create_bm();
bm4096::write_ref superblock = bm->superblock(0);
BOOST_CHECK_THROW(bm->superblock(1), runtime_error);
}
BOOST_AUTO_TEST_CASE(can_have_subsequent_superblocks)
{
2011-10-24 22:34:19 +05:30
bm4096::ptr bm = create_bm();
{ bm4096::write_ref superblock = bm->superblock(0); }
{ bm4096::write_ref superblock = bm->superblock(0); }
}
BOOST_AUTO_TEST_CASE(superblocks_can_change_address)
{
2011-10-24 22:34:19 +05:30
bm4096::ptr bm = create_bm();
{ bm4096::write_ref superblock = bm->superblock(0); }
{ bm4096::write_ref superblock = bm->superblock(1); }
}
BOOST_AUTO_TEST_CASE(superblock_must_be_last)
{
2011-10-24 22:34:19 +05:30
bm4096::ptr bm = create_bm();
{
2011-10-24 22:34:19 +05:30
bm4096::read_ref rr = bm->read_lock(63);
{
BOOST_CHECK_THROW(bm->superblock(0), runtime_error);
}
}
}
BOOST_AUTO_TEST_CASE(references_can_be_copied)
{
2011-10-24 22:34:19 +05:30
bm4096::ptr bm = create_bm();
bm4096::write_ref wr1 = bm->write_lock(0);
bm4096::write_ref wr2(wr1);
2011-07-13 19:39:33 +05:30
}
2011-07-22 20:39:56 +05:30
BOOST_AUTO_TEST_CASE(no_concurrent_write_locks)
{
2011-10-24 22:34:19 +05:30
bm4096::ptr bm = create_bm();
bm4096::write_ref wr = bm->write_lock(0);
2011-07-22 20:39:56 +05:30
BOOST_CHECK_THROW(bm->write_lock(0), runtime_error);
}
BOOST_AUTO_TEST_CASE(concurrent_read_locks)
{
2011-10-24 22:34:19 +05:30
bm4096::ptr bm = create_bm();
bm4096::read_ref rr = bm->read_lock(0);
2011-07-22 20:39:56 +05:30
bm->read_lock(0);
}
BOOST_AUTO_TEST_CASE(read_then_write)
{
2011-10-24 22:34:19 +05:30
bm4096::ptr bm = create_bm();
2011-07-22 20:39:56 +05:30
bm->read_lock(0);
bm->write_lock(0);
}
BOOST_AUTO_TEST_CASE(write_then_read)
{
2011-10-24 22:34:19 +05:30
bm4096::ptr bm = create_bm();
2011-07-22 20:39:56 +05:30
bm->write_lock(0);
bm->read_lock(0);
}
2011-07-13 19:39:33 +05:30
//----------------------------------------------------------------