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#include "test_framework.h"
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
typedef struct {
uint64_t created_at;
uint8_t id[32];
} negentropy_item_t;
typedef struct negentropy_adapter {
void *storage;
negentropy_item_t *items;
size_t count;
size_t capacity;
} negentropy_adapter_t;
static negentropy_adapter_t *negentropy_adapter_from_storage(void *storage_engine)
{
if (!storage_engine) return NULL;
negentropy_adapter_t *adapter = calloc(1, sizeof(negentropy_adapter_t));
if (!adapter) return NULL;
adapter->storage = storage_engine;
return adapter;
}
static void negentropy_adapter_destroy(negentropy_adapter_t *adapter)
{
if (!adapter) return;
if (adapter->items) free(adapter->items);
free(adapter);
}
static int adapter_insert(negentropy_adapter_t *adapter, uint64_t created_at, const uint8_t *id)
{
if (!adapter || !id) return -1;
if (adapter->count >= adapter->capacity) {
size_t new_cap = adapter->capacity == 0 ? 64 : adapter->capacity * 2;
negentropy_item_t *new_items = realloc(adapter->items, new_cap * sizeof(negentropy_item_t));
if (!new_items) return -2;
adapter->items = new_items;
adapter->capacity = new_cap;
}
negentropy_item_t *item = &adapter->items[adapter->count];
item->created_at = created_at;
memcpy(item->id, id, 32);
adapter->count++;
return 0;
}
static int test_adapter_create(void) {
negentropy_adapter_t *a = negentropy_adapter_from_storage((void*)0x1);
ASSERT(a != NULL, "adapter created from storage");
ASSERT(a->storage == (void*)0x1, "storage pointer set");
ASSERT(a->count == 0, "initial count is 0");
ASSERT(a->items == NULL, "initial items is NULL");
negentropy_adapter_destroy(a);
return 0;
}
static int test_adapter_null_storage(void) {
negentropy_adapter_t *a = negentropy_adapter_from_storage(NULL);
ASSERT(a == NULL, "NULL storage returns NULL adapter");
return 0;
}
static int test_adapter_insert(void) {
negentropy_adapter_t *a = negentropy_adapter_from_storage((void*)0x1);
uint8_t id[32];
memset(id, 0xAA, 32);
int rc = adapter_insert(a, 1700000000, id);
ASSERT(rc == 0, "insert succeeds");
ASSERT(a->count == 1, "count is 1 after insert");
ASSERT(a->items[0].created_at == 1700000000, "created_at stored");
ASSERT(memcmp(a->items[0].id, id, 32) == 0, "id stored correctly");
negentropy_adapter_destroy(a);
return 0;
}
static int test_adapter_insert_multiple(void) {
negentropy_adapter_t *a = negentropy_adapter_from_storage((void*)0x1);
uint8_t id1[32]; memset(id1, 0x11, 32);
uint8_t id2[32]; memset(id2, 0x22, 32);
uint8_t id3[32]; memset(id3, 0x33, 32);
adapter_insert(a, 100, id1);
adapter_insert(a, 200, id2);
adapter_insert(a, 300, id3);
ASSERT(a->count == 3, "count is 3 after 3 inserts");
ASSERT(a->items[0].created_at == 100, "item 0 created_at");
ASSERT(a->items[1].created_at == 200, "item 1 created_at");
ASSERT(a->items[2].created_at == 300, "item 2 created_at");
ASSERT(memcmp(a->items[0].id, id1, 32) == 0, "item 0 id");
ASSERT(memcmp(a->items[1].id, id2, 32) == 0, "item 1 id");
ASSERT(memcmp(a->items[2].id, id3, 32) == 0, "item 2 id");
negentropy_adapter_destroy(a);
return 0;
}
static int test_adapter_grow(void) {
negentropy_adapter_t *a = negentropy_adapter_from_storage((void*)0x1);
uint8_t id[32];
for (int i = 0; i < 100; i++) {
memset(id, i, 32);
int rc = adapter_insert(a, i, id);
ASSERT(rc == 0, "insert succeeds");
}
ASSERT(a->count == 100, "count is 100");
ASSERT(a->capacity >= 100, "capacity >= 100");
negentropy_adapter_destroy(a);
return 0;
}
static int test_adapter_destroy_null(void) {
negentropy_adapter_destroy(NULL);
ASSERT(1, "destroy NULL does not crash");
return 0;
}
int main(void) {
int failed = 0;
failed += test_adapter_create();
failed += test_adapter_null_storage();
failed += test_adapter_insert();
failed += test_adapter_insert_multiple();
failed += test_adapter_grow();
failed += test_adapter_destroy_null();
if (failed == 0) {
printf("\n=== ALL NEGENTROPY ADAPTER TESTS PASSED ===\n");
}
return failed;
}
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