117 lines
3.3 KiB
C
117 lines
3.3 KiB
C
/* ************************************************************************** */
|
|
/* */
|
|
/* ::: :::::::: */
|
|
/* tests.c :+: :+: :+: */
|
|
/* +:+ +:+ +:+ */
|
|
/* By: tomoron <tomoron@student.42angouleme.fr> +#+ +:+ +#+ */
|
|
/* +#+#+#+#+#+ +#+ */
|
|
/* Created: 2025/03/20 17:58:16 by tomoron #+# #+# */
|
|
/* Updated: 2025/03/25 14:20:14 by tomoron ### ########.fr */
|
|
/* */
|
|
/* ************************************************************************** */
|
|
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include "srcs/includes/malloc.h"
|
|
|
|
void malloc_free_test()
|
|
{
|
|
void *ptr[3];
|
|
|
|
printf("MALLOC TEST (pointers shouldn't be null):\n");
|
|
ptr[0] = malloc(42);
|
|
printf("tiny malloc : %p\n", ptr[0]);
|
|
ptr[1] = malloc(1024);
|
|
printf("small malloc : %p\n", ptr[1]);
|
|
ptr[2] = malloc(16384 * 1024);
|
|
printf("large malloc : %p\n", ptr[2]);
|
|
|
|
printf("\n\n\nFREE TEST (1024 bloc is from printf):\n");
|
|
printf("before : \n");
|
|
show_alloc_mem();
|
|
printf("\n");
|
|
free(ptr[0]);
|
|
free(ptr[1]);
|
|
free(ptr[2]);
|
|
printf("after : \n");
|
|
show_alloc_mem();
|
|
}
|
|
|
|
|
|
void realloc_test()
|
|
{
|
|
void *ptr[3];
|
|
|
|
printf("\n\n\nREALLOC TEST :\n");
|
|
printf("test 1 : the data in the first print should be the same in the second print and the size should be 20 in the show alloc\n");
|
|
ptr[0] = malloc(10);
|
|
strcpy(ptr[0], "potato");
|
|
printf("before realloc : %s\nptr : %p\n", (char *)ptr[0], ptr[0]);
|
|
|
|
ptr[0] = realloc(ptr[0], 20);
|
|
printf("after realloc :%s\nptr : %p\n", (char *)ptr[0], ptr[0]);
|
|
show_alloc_mem();
|
|
|
|
printf("test 2 : changing chunk size (form 20 to 500), the pointer used is the same as test1\n");
|
|
ptr[0] = realloc(ptr[0], 500);
|
|
printf("after realloc :%s\nptr : %p\n", (char *)ptr[0], ptr[0]);
|
|
show_alloc_mem();
|
|
|
|
printf("test 3 : changing chunk size (form 500 to 8192), the pointer used is the same as test2\n");
|
|
ptr[0] = realloc(ptr[0], 8192);
|
|
printf("after realloc :%s\nptr : %p\n", (char *)ptr[0], ptr[0]);
|
|
show_alloc_mem();
|
|
free(ptr[0]);
|
|
}
|
|
|
|
void show_alloc_ex_test()
|
|
{
|
|
char *data;
|
|
|
|
printf("\n\n\nSHOW_ALLOC_EX TEST:\n");
|
|
data = malloc(1020);
|
|
memset(data, 0, 1020);
|
|
strcpy(data, "0123456789abcdef");
|
|
strcpy(data + 16, "potato");
|
|
data[584] = 'a';
|
|
show_alloc_mem_ex();
|
|
free(data);
|
|
}
|
|
|
|
void defrag_test()
|
|
{
|
|
void *ptrs[3];
|
|
|
|
printf("\n\n\nDEFRAG_TEST: making two alloc of size 20\n");
|
|
ptrs[0] = malloc(20);
|
|
ptrs[1] = malloc(20);
|
|
show_alloc_mem();
|
|
printf("\nfree allocs\n");
|
|
free(ptrs[0]);
|
|
free(ptrs[1]);
|
|
printf("allocating a new bloc of size 40, address should be the same as first bloc\n");
|
|
ptrs[2] = malloc(40);
|
|
show_alloc_mem();
|
|
if(ptrs[2] == ptrs[0])
|
|
printf("\nallocated bloc has the same address\n");
|
|
else
|
|
printf("\nERROR : allocated bloc doesn't have the same address\n");
|
|
free(ptrs[2]);
|
|
}
|
|
|
|
int main(void)
|
|
{
|
|
malloc_free_test();
|
|
realloc_test();
|
|
show_alloc_ex_test();
|
|
defrag_test();
|
|
|
|
#if 0
|
|
printf("allocating memory before end of program\n");
|
|
malloc(10);
|
|
malloc(50);
|
|
malloc(8000);
|
|
malloc(1024);
|
|
#endif
|
|
}
|