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/* BEGIN_HEADER */
/* This test module exercises the timing module. Since, depending on the
* underlying operating system, the timing routines are not always reliable,
* this suite only performs very basic sanity checks of the timing API.
*/
#include <limits.h>
#include "mbedtls/timing.h"
/* END_HEADER */
/* BEGIN_DEPENDENCIES
* depends_on:MBEDTLS_TIMING_C
* END_DEPENDENCIES
*/
/* BEGIN_CASE */
void timing_get_timer()
{
struct mbedtls_timing_hr_time time;
memset(&time, 0, sizeof(time));
(void) mbedtls_timing_get_timer(&time, 1);
/* Check that a non-zero time was written back */
int all_zero = 1;
for (size_t i = 0; i < sizeof(time); i++) {
all_zero &= ((unsigned char *) &time)[i] == 0;
}
TEST_ASSERT(!all_zero);
(void) mbedtls_timing_get_timer(&time, 0);
/* This goto is added to avoid warnings from the generated code. */
goto exit;
}
/* END_CASE */
/* BEGIN_CASE */
void timing_delay(int fin_ms)
{
mbedtls_timing_delay_context ctx;
int result;
if (fin_ms == 0) {
mbedtls_timing_set_delay(&ctx, 0, 0);
result = mbedtls_timing_get_delay(&ctx);
TEST_ASSERT(result == -1);
} else {
mbedtls_timing_set_delay(&ctx, fin_ms / 2, fin_ms);
result = mbedtls_timing_get_delay(&ctx);
TEST_ASSERT(result >= 0 && result <= 2);
}
}
/* END_CASE */
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