1 #include "test_mem.h"
2 
3 #include "lwip/mem.h"
4 #include "lwip/stats.h"
5 
6 #if !LWIP_STATS || !MEM_STATS
7 #error "This tests needs MEM-statistics enabled"
8 #endif
9 #if LWIP_DNS
10 #error "This test needs DNS turned off (as it mallocs on init)"
11 #endif
12 
13 /* Setups/teardown functions */
14 
15 static void
mem_setup(void)16 mem_setup(void)
17 {
18 }
19 
20 static void
mem_teardown(void)21 mem_teardown(void)
22 {
23 }
24 
25 
26 /* Test functions */
27 
28 /** Call mem_malloc, mem_free and mem_trim and check stats */
START_TEST(test_mem_one)29 START_TEST(test_mem_one)
30 {
31 #define SIZE1   16
32 #define SIZE1_2 12
33 #define SIZE2   16
34   void *p1, *p2;
35   mem_size_t s1, s2;
36   LWIP_UNUSED_ARG(_i);
37 
38 #if LWIP_DNS
39   fail("This test needs DNS turned off (as it mallocs on init)");
40 #endif
41 
42   fail_unless(lwip_stats.mem.used == 0);
43 
44   p1 = mem_malloc(SIZE1);
45   fail_unless(p1 != NULL);
46   fail_unless(lwip_stats.mem.used >= SIZE1);
47   s1 = lwip_stats.mem.used;
48 
49   p2 = mem_malloc(SIZE2);
50   fail_unless(p2 != NULL);
51   fail_unless(lwip_stats.mem.used >= SIZE2 + s1);
52   s2 = lwip_stats.mem.used;
53 
54   mem_trim(p1, SIZE1_2);
55 
56   mem_free(p2);
57   fail_unless(lwip_stats.mem.used <= s2 - SIZE2);
58 
59   mem_free(p1);
60   fail_unless(lwip_stats.mem.used == 0);
61 }
62 END_TEST
63 
64 
65 /** Create the suite including all tests for this module */
66 Suite *
mem_suite(void)67 mem_suite(void)
68 {
69   TFun tests[] = {
70     test_mem_one
71   };
72   return create_suite("MEM", tests, sizeof(tests)/sizeof(TFun), mem_setup, mem_teardown);
73 }
74