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51 lines
1.9 KiB
C++
51 lines
1.9 KiB
C++
/*
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* Copyright (C) 2018 ScyllaDB
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*/
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/*
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* This file is part of Scylla.
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*
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* Scylla is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Scylla is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Scylla. If not, see <http://www.gnu.org/licenses/>.
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*/
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#define BOOST_TEST_MODULE core
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#include <boost/test/unit_test.hpp>
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#include "sstables/checksum_utils.hh"
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#include "make_random_string.hh"
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#include <seastar/core/print.hh>
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BOOST_AUTO_TEST_CASE(test_checksumming_matches_zlib) {
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using reference_impl = zlib_crc32_checksummer;
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auto rolling = libdeflate_crc32_checksummer::init_checksum();
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BOOST_REQUIRE_EQUAL(rolling, reference_impl::init_checksum());
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for (auto size : {0, 1, 2, 10, 13, 16, 17, 22, 31, 1024, 2000, 80000}) {
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auto data = make_random_string(size);
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auto current = libdeflate_crc32_checksummer::checksum(data.cbegin(), data.size());
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auto ref_current = reference_impl::checksum(data.cbegin(), data.size());
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BOOST_REQUIRE_EQUAL(current, ref_current);
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auto new_rolling = libdeflate_crc32_checksummer::checksum(rolling, data.cbegin(), data.size());
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auto ref_new_rolling = reference_impl::checksum(rolling, data.cbegin(), data.size());
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BOOST_REQUIRE_EQUAL(new_rolling, ref_new_rolling);
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auto new_rolling_via_combine = libdeflate_crc32_checksummer::checksum_combine(rolling, current, data.size());
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BOOST_REQUIRE_EQUAL(new_rolling, new_rolling_via_combine);
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rolling = new_rolling;
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}
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}
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