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test_basic.c
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#include "malloc.h"
#include "internal.h"
#include "test_malloc.h"
#include <limits.h>
#include <errno.h>
void malloc_tiny_basic() {
void* mem;
mem = malloc(1);
EXPECT_IS_NOT_NULL(mem);
free(mem);
mem = malloc(10);
EXPECT_IS_NOT_NULL(mem);
free(mem);
mem = malloc(100);
EXPECT_IS_NOT_NULL(mem);
free(mem);
}
void malloc_tiny_basic2() {
void* mem1 = malloc(1);
EXPECT_IS_NOT_NULL(mem1);
void* mem2 = malloc(10);
EXPECT_IS_NOT_NULL(mem2);
void* mem3 = malloc(100);
EXPECT_IS_NOT_NULL(mem3);
ft_memset(mem1, 'a', 1);
ft_memset(mem2, 'a', 10);
ft_memset(mem3, 'a', 100);
free(mem1);
free(mem2);
free(mem3);
}
void malloc_tiny_all() {
int n = 1025;
void** mems = malloc(sizeof(void*) * n);
EXPECT_IS_NOT_NULL(mems);
for (int i = 0; i < n; ++i) {
mems[i] = malloc(992);
}
for (int i = 0; i < n; ++i) {
free(mems[i]);
}
free(mems);
}
void malloc_large_basic() {
void* mem[3];
mem[0] = malloc(100000);
EXPECT_IS_NOT_NULL(mem[0]);
mem[1] = malloc(500000);
EXPECT_IS_NOT_NULL(mem[1]);
mem[2] = malloc(100000000);
EXPECT_IS_NOT_NULL(mem[2]);
}
void realloc_basic() {
void* mem1 = realloc(NULL, 60);
EXPECT_IS_NOT_NULL(mem1);
void* mem2 = realloc(mem1, 20);
EXPECT_IS_NOT_NULL(mem2);
EXPECT_EQ(mem1, mem2);
void* mem3 = realloc(mem2, 24);
EXPECT_IS_NOT_NULL(mem3);
EXPECT_EQ(mem2, mem3);
void* mem4 = realloc(mem3, 4000);
EXPECT_IS_NOT_NULL(mem4);
EXPECT_NE(mem3, mem4);
void* mem5 = realloc(mem4, 40000);
EXPECT_IS_NOT_NULL(mem5);
EXPECT_NE(mem4, mem5);
void* mem6 = realloc(mem5, 20000);
EXPECT_IS_NOT_NULL(mem6);
EXPECT_EQ(mem5, mem6);
void* mem7 = realloc(mem6, 1);
EXPECT_IS_NOT_NULL(mem7);
EXPECT_NE(mem6, mem7);
}
int s = 1;
void malloc_usable_size_basic(void) {
void* mem = malloc(s);
yoyo_dprintf(STDOUT_FILENO, "%zu\n", malloc_usable_size(mem));
EXPECT_GE_I(malloc_usable_size(mem), 1);
EXPECT_EQ_I(malloc_usable_size(mem), 16);
mem = realloc(mem, 10);
EXPECT_EQ_I(malloc_usable_size(mem), 16);
mem = realloc(mem, 16);
EXPECT_EQ_I(malloc_usable_size(mem), 16);
mem = realloc(mem, 17);
EXPECT_EQ_I(malloc_usable_size(mem), 32);
mem = realloc(mem, 1000);
EXPECT_EQ_I(malloc_usable_size(mem), 1008);
mem = realloc(mem, 1);
EXPECT_EQ_I(malloc_usable_size(mem), 16);
mem = realloc(mem, 9999);
EXPECT_EQ_I(malloc_usable_size(mem), 10000);
mem = realloc(mem, 10000);
EXPECT_EQ_I(malloc_usable_size(mem), 10000);
}
void memalign_basic_sub(size_t alignment, size_t size) {
void* mem = memalign(alignment, size);
EXPECT_IS_NOT_NULL(mem);
// yoyo_dprintf(STDOUT_FILENO, "mem = %p, usable = %zu\n", mem, malloc_usable_size(mem));
EXPECT_EQ_I((uintptr_t)mem % alignment, 0);
EXPECT_GE_I(malloc_usable_size(mem), size);
free(mem);
}
void memalign_basic(void) {
for (size_t n = 1; n < 10; ++n) {
size_t a = 1u << n;
for (size_t size = a; size < 10000; size *= a) {
// yoyo_dprintf(STDOUT_FILENO, "(alignment, size) = (%zu, %zu)\n", a, size);
memalign_basic_sub(a, size);
}
}
}
void history_basic(void) {
actual_show_alloc_mem_ex();
char* mem = malloc(1);
mem[0] = 'a';
int r = write(1, mem, 1);
(void)r;
free(mem);
mem = calloc(12, 34);
mem = realloc(mem, 123);
mem = realloc(mem, 1234);
free(mem);
mem = memalign(64, 10000);
free(mem);
mem = memalign(31, 10000);
actual_show_alloc_mem_ex();
}