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Added two simple unit tests for illegal calls to mem_free()

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This commit is contained in:
goldsimon
2017-09-25 21:38:00 +02:00
parent 5e187bb8bc
commit f058364d7f
3 changed files with 79 additions and 10 deletions
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51
test/unit/core/test_mem.c
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@@ -111,13 +111,62 @@ START_TEST(test_mem_random)
}
END_TEST
START_TEST(test_mem_invalid_free)
{
u8_t *ptr, *ptr_low, *ptr_high;
LWIP_UNUSED_ARG(_i);
fail_unless(lwip_stats.mem.used == 0);
fail_unless(lwip_stats.mem.illegal == 0);
ptr = (u8_t *)mem_malloc(1);
fail_unless(ptr != NULL);
ptr_low = ptr - 0x10;
mem_free(ptr_low);
fail_unless(lwip_stats.mem.illegal == 1);
lwip_stats.mem.illegal = 0;
ptr_high = ptr + (MEM_SIZE * 2);
mem_free(ptr_high);
fail_unless(lwip_stats.mem.illegal == 1);
lwip_stats.mem.illegal = 0;
mem_free(ptr);
fail_unless(lwip_stats.mem.illegal == 0);
fail_unless(lwip_stats.mem.used == 0);
}
END_TEST
START_TEST(test_mem_double_free)
{
u8_t *ptr;
LWIP_UNUSED_ARG(_i);
fail_unless(lwip_stats.mem.used == 0);
ptr = (u8_t *)mem_malloc(1);
fail_unless(ptr != NULL);
mem_free(ptr);
fail_unless(lwip_stats.mem.illegal == 0);
fail_unless(lwip_stats.mem.used == 0);
mem_free(ptr);
fail_unless(lwip_stats.mem.illegal == 1);
fail_unless(lwip_stats.mem.used == 0);
}
END_TEST
/** Create the suite including all tests for this module */
Suite *
mem_suite(void)
{
testfunc tests[] = {
TESTFUNC(test_mem_one),
TESTFUNC(test_mem_random)
TESTFUNC(test_mem_random),
TESTFUNC(test_mem_invalid_free),
TESTFUNC(test_mem_double_free)
};
return create_suite("MEM", tests, sizeof(tests)/sizeof(testfunc), mem_setup, mem_teardown);
}

3
test/unit/lwipopts.h
View File

@@ -70,4 +70,7 @@
/* MIB2 stats are required to check IPv4 reassembly results */
#define MIB2_STATS 1
/* Check lwip_stats.mem.illegal instead of asserting */
#define LWIP_MEM_ILLEGAL_FREE(msg) /* to nothing */
#endif /* LWIP_HDR_LWIPOPTS_H */