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cryb-to/t/t_murmur3_32.c
Dag-Erling Smørgrav e276f2b407 Ensure that we always have off_t and ssize_t in scope.
POSIX requires <stdio.h> and <unistd.h> to define off_t and ssize_t like <sys/types.h> does, but not all platforms respect that.  Play it safe by always including <sys/types.h>.
2016-09-15 10:15:00 +02:00

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/*-
* Copyright (c) 2014 Dag-Erling Smørgrav
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "cryb/impl.h"
#include <sys/types.h>
#include <stdint.h>
#include <string.h>
#include <unistd.h>
#include <cryb/hash.h>
#include <cryb/test.h>
struct t_case {
const char *desc;
const char *data;
size_t len;
uint32_t seed;
uint32_t hash;
};
/***************************************************************************
* Test cases
*/
static struct t_case t_cases[] = {
{
.desc = "00000000 { }",
.data = "murmur3",
.len = 0,
.seed = 0x00000000,
.hash = 0x00000000,
},
{
.desc = "ffffffff { }",
.data = "murmur3",
.len = 0,
.seed = 0xffffffff,
.hash = 0x81f16f39,
},
{
.desc = "00000000 { 'm' }",
.data = "murmur3",
.len = 1,
.seed = 0x00000000,
.hash = 0x5ae4385c,
},
{
.desc = "ffffffff { 'm' }",
.data = "murmur3",
.len = 1,
.seed = 0xffffffff,
.hash = 0x7aca074a,
},
{
.desc = "00000000 { 'm' 'u' }",
.data = "murmur3",
.len = 2,
.seed = 0x00000000,
.hash = 0xb93a5ae8,
},
{
.desc = "ffffffff { 'm' 'u' }",
.data = "murmur3",
.len = 2,
.seed = 0xffffffff,
.hash = 0xb3906f0a,
},
{
.desc = "00000000 { 'm' 'u' 'r' }",
.data = "murmur3",
.len = 3,
.seed = 0x00000000,
.hash = 0x44b7f9ca,
},
{
.desc = "ffffffff { 'm' 'u' 'r' }",
.data = "murmur3",
.len = 3,
.seed = 0xffffffff,
.hash = 0xe75eba0,
},
{
.desc = "00000000 { 'm' 'u' 'r' 'm' }",
.data = "murmur3",
.len = 4,
.seed = 0x00000000,
.hash = 0x48bcf87d,
},
{
.desc = "ffffffff { 'm' 'u' 'r' 'm' }",
.data = "murmur3",
.len = 4,
.seed = 0xffffffff,
.hash = 0x5771291b,
},
{
.desc = "00000000 { 'm' 'u' 'r' 'm' 'u' }",
.data = "murmur3",
.len = 5,
.seed = 0x00000000,
.hash = 0x6865a0a3,
},
{
.desc = "ffffffff { 'm' 'u' 'r' 'm' 'u' }",
.data = "murmur3",
.len = 5,
.seed = 0xffffffff,
.hash = 0xbed94c57,
},
{
.desc = "00000000 { 'm' 'u' 'r' 'm' 'u' 'r' }",
.data = "murmur3",
.len = 6,
.seed = 0x00000000,
.hash = 0x73f313cd,
},
{
.desc = "ffffffff { 'm' 'u' 'r' 'm' 'u' 'r' }",
.data = "murmur3",
.len = 6,
.seed = 0xffffffff,
.hash = 0x1a77802a,
},
{
.desc = "00000000 { 'm' 'u' 'r' 'm' 'u' 'r' '3' }",
.data = "murmur3",
.len = 7,
.seed = 0x00000000,
.hash = 0x845098a5,
},
{
.desc = "ffffffff { 'm' 'u' 'r' 'm' 'u' 'r' '3' }",
.data = "murmur3",
.len = 7,
.seed = 0xffffffff,
.hash = 0x6e66a973,
},
{
.desc = "00000000 { 'm' 'u' 'r' 'm' 'u' 'r' '3' '\\0' }",
.data = "murmur3",
.len = 8,
.seed = 0x00000000,
.hash = 0x7d525b5e,
},
{
.desc = "ffffffff { 'm' 'u' 'r' 'm' 'u' 'r' '3' '\\0' }",
.data = "murmur3",
.len = 8,
.seed = 0xffffffff,
.hash = 0x18b2eab2,
},
};
/***************************************************************************
* Test function
*/
static int
t_murmur3_32(char **desc CRYB_UNUSED, void *arg)
{
struct t_case *t = arg;
uint32_t hash;
hash = murmur3_32_hash(t->data, t->len, t->seed);
return (t_compare_x32(t->hash, hash));
}
/***************************************************************************
* Boilerplate
*/
static int
t_prepare(int argc, char *argv[])
{
int i, n;
(void)argc;
(void)argv;
n = sizeof t_cases / sizeof t_cases[0];
for (i = 0; i < n; ++i)
t_add_test(t_murmur3_32, &t_cases[i], t_cases[i].desc);
return (0);
}
int
main(int argc, char *argv[])
{
t_main(t_prepare, NULL, argc, argv);
}