Files
scylladb/tests/crc_test.cc
2016-12-05 11:48:29 +02:00

70 lines
1.8 KiB
C++

/*
* Copyright (C) 2015 ScyllaDB
*/
/*
* This file is part of Scylla.
*
* Scylla is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Scylla 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 Scylla. If not, see <http://www.gnu.org/licenses/>.
*/
#define BOOST_TEST_MODULE core
#include <boost/test/unit_test.hpp>
#include "utils/crc.hh"
#include <seastar/core/print.hh>
#include "disk-error-handler.hh"
thread_local disk_error_signal_type commit_error;
thread_local disk_error_signal_type general_disk_error;
inline
uint32_t
do_compute_crc(utils::crc32& c) {
return c.get();
}
template <typename T, typename... Rest>
inline
uint32_t
do_compute_crc(utils::crc32& c, const T& val, const Rest&... rest) {
c.process(val);
return do_compute_crc(c, rest...);
}
template <typename... T>
inline
uint32_t
compute_crc(const T&... vals) {
utils::crc32 c;
return do_compute_crc(c, vals...);
}
BOOST_AUTO_TEST_CASE(crc_1_vs_4) {
using b = uint8_t;
BOOST_REQUIRE_EQUAL(compute_crc(0x01020304), compute_crc(b(4), b(3), b(2), b(1)));
}
BOOST_AUTO_TEST_CASE(crc_121_vs_4) {
using b = uint8_t;
using w = uint16_t;
BOOST_REQUIRE_EQUAL(compute_crc(0x01020304), compute_crc(b(4), w(0x0203), b(1)));
}
BOOST_AUTO_TEST_CASE(crc_44_vs_8) {
using q = uint64_t;
BOOST_REQUIRE_EQUAL(compute_crc(q(0x0102030405060708)), compute_crc(0x05060708, 0x01020304));
}