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/* -*- Mode: c; c-basic-offset: 2 -*-
*
* test.c - Mersenne Twister tests
*
* This is free and unencumbered software released into the public domain.
*
* Anyone is free to copy, modify, publish, use, compile, sell, or
* distribute this software, either in source code form or as a compiled
* binary, for any purpose, commercial or non-commercial, and by any
* means.
*
* In jurisdictions that recognize copyright laws, the author or authors
* of this software dedicate any and all copyright interest in the
* software to the public domain. We make this dedication for the benefit
* of the public at large and to the detriment of our heirs and
* successors. We intend this dedication to be an overt act of
* relinquishment in perpetuity of all present and future rights to this
* software under copyright law.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* For more information, please refer to <http://unlicense.org/>
*
*/
#ifdef MTWIST_CONFIG
#include <mtwist_config.h>
#endif
#include <stdio.h>
#include <mtwist.h>
int main(int argc, char *argv[]);
#define N_TESTS 1000
#define TEST_SEED 54321U
/* test set 1: results 0..19 */
#define TEST_SET_1_START 0
#define TEST_SET_1_END 19
#define TEST_SET_1_NRESULTS (TEST_SET_1_END - TEST_SET_1_START + 1)
#define ULONG_C(v) (v ## UL)
static unsigned long const test_seed_54321_results_1[TEST_SET_1_NRESULTS] = {
ULONG_C(3915467345), ULONG_C(2189234826), ULONG_C(2679307290), ULONG_C( 787501152),
ULONG_C(3400771556), ULONG_C(3473638550), ULONG_C(1845911630), ULONG_C(4027756818),
ULONG_C(2332222920), ULONG_C( 127158527), ULONG_C(1775789767), ULONG_C(3371479562),
ULONG_C( 367824108), ULONG_C( 703848432), ULONG_C(3339822589), ULONG_C(1863375487),
ULONG_C(2100022882), ULONG_C(2466459787), ULONG_C( 217027622), ULONG_C( 932105407)
};
#define TEST_SET_1_RESULTS test_seed_54321_results_1
/* test set 2: results 622..629 */
#define TEST_SET_2_START 622
#define TEST_SET_2_END 629
#define TEST_SET_2_NRESULTS (TEST_SET_2_END - TEST_SET_2_START + 1)
static unsigned long const test_seed_54321_results_2[TEST_SET_2_NRESULTS] = {
ULONG_C(2109020469), ULONG_C( 264978304), ULONG_C(3951898066), ULONG_C(3322908472),
ULONG_C(2243665931), ULONG_C(3379990241), ULONG_C(1427746768), ULONG_C(3217532946)
};
#define TEST_SET_2_RESULTS test_seed_54321_results_2
/* test set 3: results 990..999 */
#define TEST_SET_3_START 990
#define TEST_SET_3_END 999
#define TEST_SET_3_NRESULTS (TEST_SET_3_END - TEST_SET_3_START + 1)
static unsigned long const test_seed_54321_results_3[TEST_SET_3_NRESULTS] = {
ULONG_C(4262956485), ULONG_C(2083563531), ULONG_C(1724557607), ULONG_C(4100776152), ULONG_C(4050777500),
ULONG_C(3146323433), ULONG_C(2882918002), ULONG_C(3891093309), ULONG_C(1534503088), ULONG_C(1821071197)
};
#define TEST_SET_3_RESULTS test_seed_54321_results_3
int
main(int argc, char *argv[])
{
const char *program = argv[0];
int failures = 0;
int test;
mtwist* mt = NULL;
if(argc != 1)
return 1;
mt = mtwist_new();
if(!mt) {
fprintf(stderr, "%s: mtwist_new() failed\n", program);
failures++;
goto tidy;
}
mtwist_init(mt, TEST_SEED);
for(test = 0; test < N_TESTS; test++) {
int check = 0;
unsigned long expected_v;
unsigned long v;
v = mtwist_u32rand(mt);
if(test >= TEST_SET_1_START && test <= TEST_SET_1_END) {
check = 1;
expected_v = TEST_SET_1_RESULTS[test - TEST_SET_1_START];
} else if(test >= TEST_SET_2_START && test <= TEST_SET_2_END) {
check = 1;
expected_v = TEST_SET_2_RESULTS[test - TEST_SET_2_START];
} else if(test >= TEST_SET_3_START && test <= TEST_SET_3_END) {
check = 1;
expected_v = TEST_SET_3_RESULTS[test - TEST_SET_3_START];
}
if(check && v != expected_v) {
fprintf(stderr,
"%s: Test %3d returned value: %lu expected %lu\n",
program, test, v, expected_v);
failures++;
} else {
#if defined(DEBUG) && DEBUG > 1
if(check)
fprintf(stderr,
"%s: Test %3d returned expected value: %lu OK\n",
program, test, v);
else
fprintf(stderr, "%s: Test %3d returned value: %lu OK\n",
program, test, v);
#endif
}
}
fprintf(stdout, "%s: Returned %d failures\n", program, failures);
tidy:
if(mt)
mtwist_free(mt);
return failures;
}
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