diff options
Diffstat (limited to 'libmisc/tests/test_rand.c')
| -rw-r--r-- | libmisc/tests/test_rand.c | 25 |
1 files changed, 11 insertions, 14 deletions
diff --git a/libmisc/tests/test_rand.c b/libmisc/tests/test_rand.c index fff1b27..8076155 100644 --- a/libmisc/tests/test_rand.c +++ b/libmisc/tests/test_rand.c @@ -8,26 +8,18 @@ #include <setjmp.h> #include <libmisc/rand.h> +#include <libmisc/_intercept.h> #include "test.h" /* Intercept failures *********************************************************/ +#ifndef NDEBUG jmp_buf *__catch; -void __assert_msg_fail(const char *expr, - const char *file, unsigned int line, const char *func, - const char *msg) { - static bool in_fail = false; +void __lm_abort(void) { if (__catch) longjmp(*__catch, 1); - if (!in_fail) { - in_fail = true; - printf("error: %s:%u:%s(): assertion \"%s\" failed%s%s\n", - file, line, func, - expr, - msg ? ": " : "", msg); - } abort(); } @@ -43,6 +35,7 @@ void __assert_msg_fail(const char *expr, __catch = old_catch; \ } \ } while (0); +#endif /* Actual tests ***************************************************************/ @@ -51,20 +44,24 @@ void __assert_msg_fail(const char *expr, static void test_n(uint64_t cnt) { if (cnt == 0 || cnt > UINT64_C(1)<<63) { +#ifndef NDEBUG should_abort(rand_uint63n(cnt)); +#else + return; +#endif } else { double sum = 0; bool seen[MAX_SEE_ALL] = {0}; for (int i = 0; i < ROUNDS; i++) { uint64_t val = rand_uint63n(cnt); - sum += ((double)val)/(cnt-1); + sum += val; test_assert(val < cnt); if (cnt < MAX_SEE_ALL) seen[val] = true; } if (cnt > 1) { - test_assert(sum/ROUNDS > 0.45); - test_assert(sum/ROUNDS < 0.55); + test_assert(sum/ROUNDS > 0.45*(cnt-1)); + test_assert(sum/ROUNDS < 0.55*(cnt-1)); } if (cnt < MAX_SEE_ALL) { for (uint64_t i = 0; i < cnt; i++) |