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tests/malloc: Allow malloc to fail when out of RAM, add heap test

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cases.

Fixes #76.
This commit is contained in:
Angus Gratton 2016-02-16 22:00:29 +11:00
parent 80b191af08
commit 8fffd14e50
4 changed files with 41 additions and 14 deletions
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19
tests/cases/02_heap.c
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@ -4,6 +4,7 @@
#include <FreeRTOS.h>
DEFINE_SOLO_TESTCASE(02_heap_simple)
DEFINE_SOLO_TESTCASE(02_heap_full)
/* Simple heap accounting tests */
static void a_02_heap_simple()
@ -35,3 +36,21 @@ static void a_02_heap_simple()
TEST_ASSERT_UINT32_WITHIN_MESSAGE(100, freeheap, after, "Free heap size after freeing buffer should be close to initial");
TEST_PASS;
}
/* Ensure malloc behaves when out of memory */
static void a_02_heap_full()
{
void *x = malloc(65536);
TEST_ASSERT_NULL_MESSAGE(x, "Allocating 64kB should fail and return null");
void *y = malloc(32768);
TEST_ASSERT_NOT_NULL_MESSAGE(y, "Allocating 32kB should succeed");
void *z = malloc(32768);
TEST_ASSERT_NULL_MESSAGE(z, "Allocating second 32kB should fail");
free(y);
z = malloc(32768);
TEST_ASSERT_NOT_NULL_MESSAGE(z, "Allocating 32kB should succeed after first block freed");
TEST_PASS;
}