thin-provisioning-tools/transaction_manager_t.cc
2011-07-14 15:31:00 +01:00

92 lines
2.0 KiB
C++

#include "transaction_manager.h"
#include "core_map.h"
#define BOOST_TEST_MODULE TransactionManagerTests
#include <boost/test/included/unit_test.hpp>
using namespace std;
using namespace boost;
using namespace persistent_data;
//----------------------------------------------------------------
namespace {
block_address const NR_BLOCKS = 1024;
transaction_manager<4096>::ptr
create_tm() {
block_manager<4096>::ptr bm(new block_manager<4096>("./test.data", NR_BLOCKS));
space_map::ptr sm(new core_map(NR_BLOCKS));
transaction_manager<4096>::ptr tm(new transaction_manager<4096>(bm, sm));
return tm;
}
}
//----------------------------------------------------------------
BOOST_AUTO_TEST_CASE(commit_succeeds)
{
auto tm = create_tm();
tm->begin(0);
}
BOOST_AUTO_TEST_CASE(shadowing)
{
auto tm = create_tm();
auto superblock = tm->begin(0);
auto sm = tm->get_sm();
sm->inc(1);
auto p = tm->shadow(1);
auto b = p.first.get_location();
BOOST_CHECK(b != 1);
BOOST_CHECK(!p.second);
BOOST_CHECK(sm->get_count(1) == 0);
p = tm->shadow(b);
BOOST_CHECK(p.first.get_location() == b);
BOOST_CHECK(!p.second);
sm->inc(b);
p = tm->shadow(b);
BOOST_CHECK(p.first.get_location() != b);
BOOST_CHECK(p.second);
}
BOOST_AUTO_TEST_CASE(multiple_shadowing)
{
auto tm = create_tm();
auto superblock = tm->begin(0);
auto sm = tm->get_sm();
sm->set_count(1, 3);
auto p = tm->shadow(1);
auto b = p.first.get_location();
BOOST_CHECK(b != 1);
BOOST_CHECK(p.second);
p = tm->shadow(1);
auto b2 = p.first.get_location();
BOOST_CHECK(b2 != 1);
BOOST_CHECK(b2 != b);
BOOST_CHECK(p.second);
p = tm->shadow(1);
auto b3 = p.first.get_location();
BOOST_CHECK(b3 != b2);
BOOST_CHECK(b3 != b);
BOOST_CHECK(b3 != 1);
BOOST_CHECK(!p.second);
}
BOOST_AUTO_TEST_CASE(shadow_free_block_fails)
{
auto tm = create_tm();
auto superblock = tm->begin(0);
BOOST_CHECK_THROW(tm->shadow(1), runtime_error);
}
// First shadow in a transaction returns a different block
// Second shadow in a transaction rtu