94 lines
2.9 KiB
C++
94 lines
2.9 KiB
C++
#include "hash/md5.hpp"
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#include "tap.hpp"
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#include <iostream>
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#include <cstring>
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using util::hash::MD5;
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///////////////////////////////////////////////////////////////////////////////
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std::vector<uint8_t>
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operator"" _u8s (const char *str, size_t len)
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{
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std::vector<uint8_t> res;
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res.resize (len);
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std::copy_n (str, len, std::begin (res));
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return res;
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}
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///////////////////////////////////////////////////////////////////////////////
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int
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main (int, char**) {
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static const struct {
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std::vector<uint8_t> input;
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MD5::digest_t output;
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const char *msg;
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} TESTS[] = {
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{ {},
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{ { 0xd4, 0x1d, 0x8c, 0xd9, 0x8f, 0x00, 0xb2, 0x04,
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0xe9, 0x80, 0x09, 0x98, 0xec, 0xf8, 0x42, 0x7e } },
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"empty"
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},
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{ "a"_u8s,
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{ { 0x0c, 0xc1, 0x75, 0xb9, 0xc0, 0xf1, 0xb6, 0xa8,
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0x31, 0xc3, 0x99, 0xe2, 0x69, 0x77, 0x26, 0x61 } },
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"1 byte"
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},
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{ "abc"_u8s,
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{ { 0x90, 0x01, 0x50, 0x98, 0x3c, 0xd2, 0x4f, 0xb0,
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0xd6, 0x96, 0x3f, 0x7d, 0x28, 0xe1, 0x7f, 0x72 } },
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"3 bytes"
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},
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{ "message digest"_u8s,
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{ { 0xf9, 0x6b, 0x69, 0x7d, 0x7c, 0xb7, 0x93, 0x8d,
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0x52, 0x5a, 0x2f, 0x31, 0xaa, 0xf1, 0x61, 0xd0 } },
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"14 bytes, text"
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},
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{ "abcdefghijklmnopqrstuvwxyz"_u8s,
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{ { 0xc3, 0xfc, 0xd3, 0xd7, 0x61, 0x92, 0xe4, 0x00,
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0x7d, 0xfb, 0x49, 0x6c, 0xca, 0x67, 0xe1, 0x3b } },
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"14 bytes, alphabet"
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},
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{ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"_u8s,
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{ { 0xd1, 0x74, 0xab, 0x98, 0xd2, 0x77, 0xd9, 0xf5,
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0xa5, 0x61, 0x1c, 0x2c, 0x9f, 0x41, 0x9d, 0x9f } },
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"62 bytes"
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},
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{ "12345678901234567890123456789012345678901234567890123456789012345678901234567890"_u8s,
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{ { 0x57, 0xed, 0xf4, 0xa2, 0x2b, 0xe3, 0xc9, 0x55,
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0xac, 0x49, 0xda, 0x2e, 0x21, 0x07, 0xb6, 0x7a } },
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"80 bytes"
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}
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};
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util::TAP::logger tap;
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MD5 h;
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for (const auto &t: TESTS)
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tap.expect_eq (h (t.input), t.output, "%s", t.msg);
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// check that appending or prepending an empty data view doesn't change
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// the hash for a couple of data lengths
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for (auto l: { 0, 1, 8, 64, 80}) {
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std::vector<uint8_t> data (l);
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std::iota (std::begin (data), std::end (data), 0);
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tap.expect_eq (h (nullptr, data), h (data), "empty-full vs full hash equality, %! bytes", l);
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tap.expect_eq (h (data, nullptr), h (data), "full-empty vs full hash equality, %! bytes", l);
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}
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for (auto l: { 2, 64, 80}) {
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std::vector<uint8_t> data (l);
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std::iota (std::begin (data), std::end (data), 0);
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util::view root {data};
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auto [a,b] = root.split (root.begin () + l / 2);
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tap.expect_eq (h (a,b), h(root), "split data hash equality, %! bytes", l);
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};
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return tap.status ();
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}
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