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test-murmurhash3.c
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test-murmurhash3.c
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/* Copyright (c) 2018 Dovecot authors, see the included COPYING file */
#include "test-lib.h"
#include "murmurhash3.h"
struct murmur3_test_vectors {
const char *input;
size_t len;
uint32_t seed;
uint8_t result[MURMURHASH3_128_RESULTBYTES]; /* fits all results */
};
static void test_murmurhash3_algorithm(const char *name,
void (*func)(const void*,size_t,uint32_t,unsigned char[]),
size_t result_size,
const struct murmur3_test_vectors *vectors,
unsigned int tests)
{
test_begin(t_strdup_printf("murmurhash3 (%s)", name));
for(unsigned int i = 0; i < tests; i++) {
unsigned char result[result_size];
func(vectors[i].input, vectors[i].len, vectors[i].seed, result);
test_assert_idx(memcmp(result, vectors[i].result, sizeof(result)) == 0, i);
}
test_end();
}
static void test_murmurhash3_32(void)
{
struct murmur3_test_vectors vectors[] = {
{ "", 0, 0, { 0, }},
{ "", 0, 0x1, { 0x51, 0x4E, 0x28, 0xB7, }},
{ "", 0, 0xFFFFFFFF, { 0x81, 0xF1, 0x6F, 0x39, }},
{ "\0\0\0\0", 4, 0, { 0x23, 0x62, 0xF9, 0xDE, }},
{ "aaaa", 4, 0x9747b28c, { 0x5A, 0x97, 0x80, 0x8A, }},
{ "aaa", 3, 0x9747b28c, { 0x28, 0x3E, 0x01, 0x30, }},
{ "aa", 2, 0x9747b28c, { 0x5D, 0x21, 0x17, 0x26, }},
{ "a", 1, 0x9747b28c, { 0x7F, 0xA0, 0x9E, 0xA6, }},
{ "abcd", 4, 0x9747b28c, { 0xF0, 0x47, 0x86, 0x27, }},
{ "abc", 3, 0x9747b28c, { 0xC8, 0x4A, 0x62, 0xDD, }},
{ "ab", 2, 0x9747b28c, { 0x74, 0x87, 0x55, 0x92, }},
{ "Hello, world!", 13, 0x9747b28c, { 0x24, 0x88, 0x4C, 0xBA, }},
{
"\xcf\x80\xcf\x80\xcf\x80\xcf\x80\xcf\x80\xcf\x80\xcf\x80\xcf\x80",
16,
0x9747b28c,
{ 0xD5, 0x80, 0x63, 0xC1, }
}, /* 8 U+03C0 (Greek Small Letter Pi) */
{
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaa",
256,
0x9747b28c,
{ 0x37, 0x40, 0x5B, 0xDC, }
},
};
test_murmurhash3_algorithm("murmurhash3_32", murmurhash3_32,
MURMURHASH3_32_RESULTBYTES,
vectors, N_ELEMENTS(vectors));
}
static void test_murmurhash3_128(void)
{
struct murmur3_test_vectors vectors[] = {
#ifdef _LP64
{ "", 0, 0x00000000, { 0, }},
{ "", 0, 0x00000001,
{ 0x46, 0x10, 0xab, 0xe5, 0x6e, 0xff, 0x5c, 0xb5,
0x51, 0x62, 0x2d, 0xaa, 0x78, 0xf8, 0x35, 0x83 }},
{ "", 0, 0xffffffff,
{ 0x6a, 0xf1, 0xdf, 0x4d, 0x9d, 0x3b, 0xc9, 0xec,
0x85, 0x74, 0x21, 0x12, 0x1e, 0xe6, 0x44, 0x6b }},
{ "\0\0\0\0", 4, 0x00000000,
{ 0xcf, 0xa0, 0xf7, 0xdd, 0xd8, 0x4c, 0x76, 0xbc,
0x58, 0x96, 0x23, 0x16, 0x1c, 0xf5, 0x26, 0xf1 }},
{ "aaaa", 4, 0x9747b28c,
{ 0xb4, 0xe0, 0xa5, 0xf7, 0x5e, 0x64, 0x9b, 0xf0,
0xa5, 0xd3, 0xe8, 0xe9, 0x03, 0x8c, 0x56, 0x9f }},
{ "aaa", 3, 0x9747b28c,
{ 0x8e, 0xa5, 0xe3, 0x7a, 0xe4, 0xc7, 0x46, 0x6b,
0xf9, 0x25, 0xbe, 0xf0, 0x35, 0xdc, 0x93, 0x1c }},
{ "aa", 2, 0x9747b28c,
{ 0x12, 0xa6, 0x98, 0xa9, 0xbe, 0xe5, 0xbb, 0x1f,
0xe9, 0x36, 0x30, 0xff, 0x5e, 0x26, 0x94, 0x01 }},
{ "a", 1, 0x9747b28c,
{ 0x5c, 0xe8, 0xd8, 0x51, 0x2d, 0xb2, 0x5a, 0x1d,
0x9e, 0x6d, 0xab, 0x0f, 0x92, 0x08, 0xf0, 0x04 }},
{ "abcd", 4, 0x9747b28c,
{ 0x49, 0xb4, 0x70, 0x9e, 0xac, 0x55, 0x37, 0x91,
0x8a, 0x7e, 0x67, 0xe7, 0xe9, 0xd3, 0xa7, 0xbb }},
{ "abc", 3, 0x9747b28c,
{ 0x37, 0x43, 0x63, 0x0d, 0xbf, 0xc3, 0xce, 0xdc,
0xcd, 0xe0, 0xa2, 0x34, 0x20, 0xb5, 0x04, 0xbf }},
{ "ab", 2, 0x9747b28c,
{ 0x84, 0x34, 0xee, 0xad, 0x1a, 0x44, 0x28, 0x0b,
0x7e, 0xb9, 0x33, 0xe7, 0x63, 0xce, 0x37, 0x2b }},
{ "Hello, world!", 13, 0x9747b28c,
{ 0xed, 0xc4, 0x85, 0xd6, 0x62, 0xa8, 0x39, 0x2e,
0xf8, 0x5e, 0x7e, 0x76, 0x31, 0xd5, 0x76, 0xba }},
{
"\xcf\x80\xcf\x80\xcf\x80\xcf\x80\xcf\x80\xcf\x80\xcf\x80\xcf\x80",
16,
0x9747b28c,
{ 0x96, 0xea, 0x5b, 0xd8, 0xc0, 0x36, 0x1a, 0x1f,
0xf8, 0xb7, 0x2b, 0xd0, 0x09, 0x4b, 0xe1, 0x7b }
},
{
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaa",
256,
0x9747b28c,
{ 0x07, 0xbd, 0x95, 0x7c, 0xa5, 0xde, 0xc1, 0xc4,
0xc4, 0xd8, 0xbb, 0x8d, 0x1f, 0x6c, 0xee, 0x55 }
},
#else /* 32 bit test vectors */
{ "", 0, 0x00000000, { 0, }},
{ "", 0, 0x00000001,
{ 0x88, 0xc4, 0xad, 0xec, 0x54, 0xd2, 0x01, 0xb9,
0x54, 0xd2, 0x01, 0xb9, 0x54, 0xd2, 0x01, 0xb9 }},
{ "", 0, 0xffffffff,
{ 0x05, 0x1e, 0x08, 0xa9, 0x98, 0x9d, 0x49, 0xf7,
0x98, 0x9d, 0x49, 0xf7, 0x98, 0x9d, 0x49, 0xf7 }},
{ "\0\0\0\0", 4, 0x00000000,
{ 0xcc, 0x06, 0x6f, 0x1f, 0x9e, 0x51, 0x78, 0x40,
0x9e, 0x51, 0x78, 0x40, 0x9e, 0x51, 0x78, 0x40 }},
{ "aaaa", 4, 0x9747b28c,
{ 0x36, 0x80, 0x4c, 0xef, 0x2a, 0x61, 0xc2, 0x24,
0x2a, 0x61, 0xc2, 0x24, 0x2a, 0x61, 0xc2, 0x24 }},
{ "aaa", 3, 0x9747b28c,
{ 0x83, 0x83, 0x89, 0xbe, 0x9a, 0xad, 0x7f, 0x88,
0x9a, 0xad, 0x7f, 0x88, 0x9a, 0xad, 0x7f, 0x88 }},
{ "aa", 2, 0x9747b28c,
{ 0xdf, 0xbe, 0x4a, 0x86, 0x4a, 0x9c, 0x35, 0x0b,
0x4a, 0x9c, 0x35, 0x0b, 0x4a, 0x9c, 0x35, 0x0b }},
{ "a", 1, 0x9747b28c,
{ 0x08, 0x4e, 0xf9, 0x44, 0x21, 0xa1, 0x18, 0x6e,
0x21, 0xa1, 0x18, 0x6e, 0x21, 0xa1, 0x18, 0x6e }},
{ "abcd", 4, 0x9747b28c,
{ 0x47, 0x95, 0xc5, 0x29, 0xce, 0xc1, 0x88, 0x5e,
0xce, 0xc1, 0x88, 0x5e, 0xce, 0xc1, 0x88, 0x5e }},
{ "abc", 3, 0x9747b28c,
{ 0xd6, 0x35, 0x9e, 0xaf, 0x48, 0xfc, 0x3a, 0xc3,
0x48, 0xfc, 0x3a, 0xc3, 0x48, 0xfc, 0x3a, 0xc3 }},
{ "ab", 2, 0x9747b28c,
{ 0x38, 0x37, 0xd7, 0x95, 0xc7, 0xfe, 0x58, 0x96,
0xc7, 0xfe, 0x58, 0x96, 0xc7, 0xfe, 0x58, 0x96 }},
{ "Hello, world!", 13, 0x9747b28c,
{ 0x75, 0x6d, 0x54, 0x60, 0xbb, 0x87, 0x22, 0x16,
0xb7, 0xd4, 0x8b, 0x7c, 0x53, 0xc8, 0xc6, 0x36 }},
{
"\xcf\x80\xcf\x80\xcf\x80\xcf\x80\xcf\x80\xcf\x80\xcf\x80\xcf\x80",
16,
0x9747b28c,
{ 0xaf, 0x2a, 0xd3, 0x25, 0x3a, 0x74, 0xdf, 0x88,
0x38, 0xcc, 0x75, 0x34, 0xf1, 0x97, 0xcc, 0x0d }
},
{
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
"aaaaaaaaaaaaaaaaaaaa",
256,
0x9747b28c,
{ 0xd3, 0xf2, 0xb7, 0xbb, 0xf6, 0x66, 0xc0, 0xcc,
0xd4, 0xa4, 0x00, 0x60, 0x5e, 0xc8, 0xd3, 0x2a }
},
#endif
};
test_murmurhash3_algorithm("murmurhash3_128", murmurhash3_128,
MURMURHASH3_128_RESULTBYTES,
vectors, N_ELEMENTS(vectors));
}
void test_murmurhash3(void)
{
test_murmurhash3_32();
test_murmurhash3_128();
}