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https://github.com/scylladb/scylladb.git
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92 lines
2.7 KiB
C++
92 lines
2.7 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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template<typename ReferenceImpl, typename Impl>
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static
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void test_combine() {
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auto check = [](size_t len) {
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auto c1 = Impl::checksum_combine(0x12381237, 0x73747474, len);
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auto c2 = ReferenceImpl::checksum_combine(0x12381237, 0x73747474, len);
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BOOST_REQUIRE_EQUAL(c1, c2);
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};
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check(0);
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check(1);
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check(2);
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check(3);
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check(8);
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check(255);
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check(256);
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check(1023);
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check(1024);
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check(1025);
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check(0xffff);
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check(0x10000);
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check(0xdeadbeef);
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check(0xffffffff);
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check(0x100000000);
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check(0x200000000);
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check(0x10000000001);
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check(0x7eadbeefcafebabe);
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check(0x7fffffffffffffff);
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}
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template<typename ReferenceImpl, typename Impl>
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static
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void test() {
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auto rolling = Impl::init_checksum();
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BOOST_REQUIRE_EQUAL(rolling, ReferenceImpl::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 = Impl::checksum(data.cbegin(), data.size());
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auto ref_current = ReferenceImpl::checksum(data.cbegin(), data.size());
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BOOST_REQUIRE_EQUAL(current, ref_current);
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auto new_rolling = Impl::checksum(rolling, data.cbegin(), data.size());
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auto ref_new_rolling = ReferenceImpl::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 = Impl::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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test_combine<ReferenceImpl, Impl>();
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}
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BOOST_AUTO_TEST_CASE(test_libdeflate_matches_zlib) {
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test<zlib_crc32_checksummer, libdeflate_crc32_checksummer>();
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}
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BOOST_AUTO_TEST_CASE(test_default_matches_zlib) {
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test<zlib_crc32_checksummer, crc32_utils>();
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}
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