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//
// Created by Anshul Gupta on 4/9/25.
//
#include <stdarg.h>
#include <stddef.h>
#include <setjmp.h>
#include <stdint.h>
#include <cmocka.h>
#include <string.h>
#include "../src/buffer.h"
static void buffer_new_empty_test(void **state)
{
(void) state;
const buffer_t buf = buffer_new(0);
assert_null(buf.data);
assert_int_equal(buf.len, 0);
assert_int_equal(buf.cap, 0);
}
static void buffer_new_test(void **state)
{
(void) state;
const buffer_t buf = buffer_new(10);
assert_non_null(buf.data);
assert_int_equal(buf.len, 0);
assert_int_equal(buf.cap, 16); // 10 aligned to 8 bytes
buffer_free(buf);
}
static void buffer_reserve_test(void **state)
{
(void) state;
buffer_t buf = buffer_new(10);
assert_int_equal(buf.cap, 16); // 10 aligned to 8 bytes
buffer_reserve(&buf, 20);
assert_int_equal(buf.cap, 24); // 20 aligned to 8 bytes
buffer_free(buf);
}
static void buffer_append_test(void **state)
{
(void) state;
buffer_t buf = buffer_new(0);
assert_int_equal(buf.cap, 0);
const char *data = "Hello, World!";
const size_t len = strlen(data);
buffer_append(&buf, data, len);
assert_int_equal(buf.len, len);
assert_int_equal(buf.cap, 16); // 16 bytes allocated
assert_memory_equal(buf.data, data, len);
buffer_append(&buf, data, len);
assert_int_equal(buf.len, len * 2);
assert_int_equal(buf.cap, 32); // 32 bytes allocated
assert_memory_equal(buf.data + len, data, len);
buffer_free(buf);
}
int main(void)
{
const struct CMUnitTest tests[] = {
cmocka_unit_test(buffer_new_empty_test),
cmocka_unit_test(buffer_new_test),
cmocka_unit_test(buffer_reserve_test),
cmocka_unit_test(buffer_append_test),
};
return cmocka_run_group_tests(tests, NULL, NULL);
}
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