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62 lines
1.3 KiB
C
62 lines
1.3 KiB
C
/*
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* PROJECT: ReactOS API Tests
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* LICENSE: MIT (https://spdx.org/licenses/MIT)
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* PURPOSE: Tests for rand_s
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* COPYRIGHT: Copyright 2024 Timo Kreuzer <timo.kreuzer@reactos.org>
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*/
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#include <apitest.h>
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#include <stdio.h>
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#ifdef TEST_STATIC_CRT
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errno_t __cdecl rand_s(_Out_ unsigned int* _RandomValue);
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#endif
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typedef int __cdecl rand_s_t(unsigned int*);
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rand_s_t *p_rand_s;
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void test_rand_s_performance(void)
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{
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unsigned long long start, end;
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unsigned int val;
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int i;
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start = __rdtsc();
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for (i = 0; i < 10000; i++)
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{
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p_rand_s(&val);
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}
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end = __rdtsc();
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printf("rand_s took %llu cycles\n", end - start);
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}
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START_TEST(rand_s)
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{
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unsigned int val;
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int ret;
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#ifndef TEST_STATIC_CRT
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/* Dynamically load rand_s from mvcrt */
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HMODULE msvcrt = GetModuleHandleA("msvcrt");
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p_rand_s = (rand_s_t*)GetProcAddress(msvcrt, "rand_s");
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if (!p_rand_s)
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{
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win_skip("rand_s is not available\n");
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return;
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}
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#else
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p_rand_s = rand_s;
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#endif
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/* Test performance */
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test_rand_s_performance();
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/* Test with NULL pointer */
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ret = p_rand_s(NULL);
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ok(ret == EINVAL, "Expected EINVAL, got %d\n", ret);
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/* Test with valid pointer */
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ret = p_rand_s(&val);
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ok(ret == 0, "Expected 0, got %d\n", ret);
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}
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