#define N_INTS_TEST 4
#define NIARENA_ARENA_SIZE (N_INTS_TEST * sizeof(int))
#define NIARENA_IMPLEMENTATION

#include "../niarena.h"
#include <assert.h>
#include <stdio.h>
#include <string.h>

void
test_arena_new()
{
	NIArena *arena = niarena_new();
	assert(arena->offset == 0);
	assert(arena->capacity == (N_INTS_TEST * sizeof(int)));
	niarena_delete(arena);
}

void
test_arena_allocations()
{
	NIArena *arena = niarena_new();

	int *ns[N_INTS_TEST];
	for(int i = 1; i <= N_INTS_TEST + 1; i++) {
		int *p = (int *)niarena_alloc(arena, sizeof(int));
		if(i == N_INTS_TEST + 1) {
			// Invalid allocation does not invalidate the rest
			assert(p == NULL);
			const char *err = niarena_get_error();
			assert(strcmp(err, "niarena_alloc: out of memory inside of the arena") == 0);
		} else {
			assert(arena->offset == i * sizeof(int));
			*p = 1234 + i;
			ns[i - 1] = p;
		}
	}
	for(int i = 1; i <= N_INTS_TEST; i++) {
		assert(*ns[i - 1] == 1234 + i);
	}

	niarena_delete(arena);
}

int
main()
{
	test_arena_new();
	test_arena_allocations();
	printf("== TESTS SUCCESSFUL ==\n");
	return 0;
}