OVMS3-idf/components/esp32/test/test_malloc_caps.c

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/*
Tests for the capabilities-based memory allocator.
*/
#include <esp_types.h>
#include <stdio.h>
#include "unity.h"
#include "rom/ets_sys.h"
#include "esp_heap_alloc_caps.h"
#include <stdlib.h>
TEST_CASE("Capabilities allocator test", "[esp32]")
{
char *m1, *m2[10];
int x;
size_t free8start, free32start, free8, free32;
free8start=xPortGetFreeHeapSizeCaps(MALLOC_CAP_8BIT);
free32start=xPortGetFreeHeapSizeCaps(MALLOC_CAP_32BIT);
printf("Free 8bit-capable memory: %dK, 32-bit capable memory %dK\n", free8start, free32start);
TEST_ASSERT(free32start>free8start);
printf("Allocating 10K of 8-bit capable RAM\n");
m1=pvPortMallocCaps(10*1024, MALLOC_CAP_8BIT);
printf("--> %p\n", m1);
free8=xPortGetFreeHeapSizeCaps(MALLOC_CAP_8BIT);
free32=xPortGetFreeHeapSizeCaps(MALLOC_CAP_32BIT);
printf("Free 8bit-capable memory: %dK, 32-bit capable memory %dK\n", free8, free32);
//Both should have gone down by 10K; 8bit capable ram is also 32-bit capable
TEST_ASSERT(free8<(free8start-10*1024));
TEST_ASSERT(free32<(free32start-10*1024));
//Assume we got DRAM back
TEST_ASSERT((((int)m1)&0xFF000000)==0x3F000000);
free(m1);
printf("Freeing; allocating 10K of 32K-capable RAM\n");
m1=pvPortMallocCaps(10*1024, MALLOC_CAP_32BIT);
printf("--> %p\n", m1);
free8=xPortGetFreeHeapSizeCaps(MALLOC_CAP_8BIT);
free32=xPortGetFreeHeapSizeCaps(MALLOC_CAP_32BIT);
printf("Free 8bit-capable memory: %dK, 32-bit capable memory %dK\n", free8, free32);
//Only 32-bit should have gone down by 10K: 32-bit isn't necessarily 8bit capable
TEST_ASSERT(free32<(free32start-10*1024));
TEST_ASSERT(free8==free8start);
//Assume we got IRAM back
TEST_ASSERT((((int)m1)&0xFF000000)==0x40000000);
free(m1);
printf("Allocating impossible caps\n");
m1=pvPortMallocCaps(10*1024, MALLOC_CAP_8BIT|MALLOC_CAP_EXEC);
printf("--> %p\n", m1);
TEST_ASSERT(m1==NULL);
printf("Testing changeover iram -> dram");
for (x=0; x<10; x++) {
m2[x]=pvPortMallocCaps(10*1024, MALLOC_CAP_32BIT);
printf("--> %p\n", m2[x]);
}
TEST_ASSERT((((int)m2[0])&0xFF000000)==0x40000000);
TEST_ASSERT((((int)m2[9])&0xFF000000)==0x3F000000);
printf("Test if allocating executable code still gives IRAM, even with dedicated IRAM region depleted\n");
m1=pvPortMallocCaps(10*1024, MALLOC_CAP_EXEC);
printf("--> %p\n", m1);
TEST_ASSERT((((int)m1)&0xFF000000)==0x40000000);
free(m1);
for (x=0; x<10; x++) free(m2[x]);
printf("Done.\n");
}