5b72fb65ae
This test is a sanity check. It verifies that our wrappers over well known hashes (xxhash, md5, sha256) actually calculate exactly those hashes. It also checks that the `update()` methods of used hashers are linear with respect to concatenation: that is, `update(a + b)` must be equivalent to `update(a); update(b)`. This wasn't relied on before, but now we need to confirm that hashing fragmented keys without linearizing them won't break backward compatibility.
71 lines
2.6 KiB
C++
71 lines
2.6 KiB
C++
/*
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* Copyright (C) 2021 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 "hashers.hh"
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#include "xx_hasher.hh"
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bytes text_part1("sanity");
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bytes text_part2("check");
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bytes text_full("sanitycheck");
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BOOST_AUTO_TEST_CASE(xx_hasher_sanity_check) {
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xx_hasher hasher;
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hasher.update(reinterpret_cast<const char*>(std::data(text_part1)), std::size(text_part1));
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hasher.update(reinterpret_cast<const char*>(std::data(text_part2)), std::size(text_part2));
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bytes hash = hasher.finalize();
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bytes expected = from_hex("00000000000000001b1308f9e7c7dcf4");
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BOOST_CHECK_EQUAL(hash, expected);
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}
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BOOST_AUTO_TEST_CASE(md5_hasher_sanity_check) {
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md5_hasher hasher;
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hasher.update(reinterpret_cast<const char*>(std::data(text_part1)), std::size(text_part1));
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hasher.update(reinterpret_cast<const char*>(std::data(text_part2)), std::size(text_part2));
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bytes hash = hasher.finalize();
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bytes expected = from_hex("a9221b2b5a53b9d9adf07f3305ed1a3e");
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BOOST_CHECK_EQUAL(hash, expected);
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}
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BOOST_AUTO_TEST_CASE(sha256_hasher_sanity_check) {
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sha256_hasher hasher;
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hasher.update(reinterpret_cast<const char*>(std::data(text_part1)), std::size(text_part1));
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hasher.update(reinterpret_cast<const char*>(std::data(text_part2)), std::size(text_part2));
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bytes hash = hasher.finalize();
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bytes expected = from_hex("62bcb3e6160172824e1939116f48ae3680df989583c6d1bfbfa84fa9a080d003");
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BOOST_REQUIRE_EQUAL(hash, expected);
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}
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BOOST_AUTO_TEST_CASE(bytes_view_hasher_sanity_check) {
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bytes_view_hasher hasher1;
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hasher1.update(reinterpret_cast<const char*>(std::data(text_part1)), std::size(text_part1));
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hasher1.update(reinterpret_cast<const char*>(std::data(text_part2)), std::size(text_part2));
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size_t hash1 = hasher1.finalize();
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bytes_view_hasher hasher2;
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hasher2.update(reinterpret_cast<const char*>(std::data(text_full)), std::size(text_full));
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size_t hash2 = hasher2.finalize();
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BOOST_REQUIRE_EQUAL(hash1, hash2);
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}
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