148 lines
5.3 KiB
C++
148 lines
5.3 KiB
C++
/*
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Copyright (c) 2015, Arvid Norberg
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in
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the documentation and/or other materials provided with the distribution.
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* Neither the name of the author nor the names of its
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contributors may be used to endorse or promote products derived
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from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "test.hpp"
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#include "libtorrent/sha1_hash.hpp"
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#include "libtorrent/hex.hpp" // from_hex
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using namespace libtorrent;
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static sha1_hash to_hash(char const* s)
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{
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sha1_hash ret;
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aux::from_hex(s, 40, (char*)&ret[0]);
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return ret;
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}
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TORRENT_TEST(sha1_hash)
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{
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sha1_hash h1(0);
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sha1_hash h2(0);
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TEST_CHECK(h1 == h2);
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TEST_CHECK(!(h1 != h2));
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TEST_CHECK(!(h1 < h2));
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TEST_CHECK(!(h1 < h2));
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TEST_CHECK(h1.is_all_zeros());
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h1 = to_hash("0123456789012345678901234567890123456789");
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h2 = to_hash("0113456789012345678901234567890123456789");
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TEST_CHECK(h2 < h1);
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TEST_CHECK(h2 == h2);
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TEST_CHECK(h1 == h1);
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h2.clear();
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TEST_CHECK(h2.is_all_zeros());
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h2 = to_hash("ffffffffff0000000000ffffffffff0000000000");
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h1 = to_hash("fffff00000fffff00000fffff00000fffff00000");
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h1 &= h2;
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TEST_CHECK(h1 == to_hash("fffff000000000000000fffff000000000000000"));
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h2 = to_hash("ffffffffff0000000000ffffffffff0000000000");
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h1 = to_hash("fffff00000fffff00000fffff00000fffff00000");
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h1 |= h2;
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TEST_CHECK(h1 == to_hash("fffffffffffffff00000fffffffffffffff00000"));
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h2 = to_hash("0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f0f");
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h1 ^= h2;
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TEST_CHECK(h1 == to_hash("f0f0f0f0f0f0f0ff0f0ff0f0f0f0f0f0f0ff0f0f"));
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TEST_CHECK(h1 != h2);
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h2 = sha1_hash(" ");
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TEST_CHECK(h2 == to_hash("2020202020202020202020202020202020202020"));
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h1 = to_hash("ffffffffff0000000000ffffffffff0000000000");
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h1 <<= 12;
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TEST_CHECK(h1 == to_hash("fffffff0000000000ffffffffff0000000000000"));
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h1 >>= 12;
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TEST_CHECK(h1 == to_hash("000fffffff0000000000ffffffffff0000000000"));
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h1 = to_hash("7000000000000000000000000000000000000000");
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h1 <<= 1;
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TEST_CHECK(h1 == to_hash("e000000000000000000000000000000000000000"));
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h1 = to_hash("0000000000000000000000000000000000000007");
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h1 <<= 1;
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TEST_CHECK(h1 == to_hash("000000000000000000000000000000000000000e"));
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h1 = to_hash("0000000000000000000000000000000000000007");
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h1 >>= 1;
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TEST_CHECK(h1 == to_hash("0000000000000000000000000000000000000003"));
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h1 = to_hash("7000000000000000000000000000000000000000");
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h1 >>= 1;
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TEST_CHECK(h1 == to_hash("3800000000000000000000000000000000000000"));
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h1 = to_hash("7000000000000000000000000000000000000000");
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h1 >>= 32;
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TEST_CHECK(h1 == to_hash("0000000070000000000000000000000000000000"));
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h1 >>= 33;
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TEST_CHECK(h1 == to_hash("0000000000000000380000000000000000000000"));
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h1 <<= 33;
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TEST_CHECK(h1 == to_hash("0000000070000000000000000000000000000000"));
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}
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TORRENT_TEST(count_leading_zeroes)
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{
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std::vector<std::pair<char const*, int>> const tests = {
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{ "ffffffffffffffffffffffffffffffffffffffff", 0 },
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{ "0000000000000000000000000000000000000000", 160 },
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{ "fff0000000000000000000000000000000000000", 0 },
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{ "7ff0000000000000000000000000000000000000", 1 },
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{ "3ff0000000000000000000000000000000000000", 2 },
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{ "1ff0000000000000000000000000000000000000", 3 },
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{ "0ff0000000000000000000000000000000000000", 4 },
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{ "07f0000000000000000000000000000000000000", 5 },
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{ "03f0000000000000000000000000000000000000", 6 },
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{ "01f0000000000000000000000000000000000000", 7 },
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{ "00f0000000000000000000000000000000000000", 8 },
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{ "0070000000000000000000000000000000000000", 9 },
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{ "0030000000000000000000000000000000000000", 10 },
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{ "0010000000000000000000000000000000000000", 11 },
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{ "0000000ffff00000000000000000000000000000", 28 },
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{ "00000007fff00000000000000000000000000000", 29 },
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{ "00000003fff00000000000000000000000000000", 30 },
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{ "00000001fff00000000000000000000000000000", 31 },
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{ "00000000fff00000000000000000000000000000", 32 },
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{ "000000007ff00000000000000000000000000000", 33 },
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{ "000000003ff00000000000000000000000000000", 34 },
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{ "000000001ff00000000000000000000000000000", 35 },
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};
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for (auto const& t : tests)
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{
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std::fprintf(stderr, "%s\n", t.first);
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TEST_EQUAL(to_hash(t.first).count_leading_zeroes(), t.second);
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}
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}
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