lwip/test/unit/core/test_mem.c

74 lines
1.3 KiB
C

#include "test_mem.h"
#include "lwip/mem.h"
#include "lwip/stats.h"
#if !LWIP_STATS || !MEM_STATS
#error "This tests needs MEM-statistics enabled"
#endif
#if LWIP_DNS
#error "This test needs DNS turned off (as it mallocs on init)"
#endif
/* Setups/teardown functions */
static void
mem_setup(void)
{
}
static void
mem_teardown(void)
{
}
/* Test functions */
/** Call mem_malloc, mem_free and mem_trim and check stats */
START_TEST(test_mem_one)
{
#define SIZE1 16
#define SIZE1_2 12
#define SIZE2 16
void *p1, *p2;
mem_size_t s1, s2;
LWIP_UNUSED_ARG(_i);
#if LWIP_DNS
fail("This test needs DNS turned off (as it mallocs on init)");
#endif
fail_unless(lwip_stats.mem.used == 0);
p1 = mem_malloc(SIZE1);
fail_unless(p1 != NULL);
fail_unless(lwip_stats.mem.used >= SIZE1);
s1 = lwip_stats.mem.used;
p2 = mem_malloc(SIZE2);
fail_unless(p2 != NULL);
fail_unless(lwip_stats.mem.used >= SIZE2 + s1);
s2 = lwip_stats.mem.used;
mem_trim(p1, SIZE1_2);
mem_free(p2);
fail_unless(lwip_stats.mem.used <= s2 - SIZE2);
mem_free(p1);
fail_unless(lwip_stats.mem.used == 0);
}
END_TEST
/** Create the suite including all tests for this module */
Suite *
mem_suite(void)
{
TFun tests[] = {
test_mem_one
};
return create_suite("MEM", tests, sizeof(tests)/sizeof(TFun), mem_setup, mem_teardown);
}