/**
 * Copyright (c) 2020 Paul-Louis Ageneau
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include "base64.h"

#include <stdint.h>
#include <string.h>

#define BUFFER_SIZE 1024

int test_base64(void) {
	const char *str = "Man is distinguished, not only by his reason, but by this singular passion "
	                  "from other animals, which is a lust of the mind, that by a perseverance of "
	                  "delight in the continued and indefatigable generation of knowledge, exceeds "
	                  "the short vehemence of any carnal pleasure.";
	const char *expected =
	    "TWFuIGlzIGRpc3Rpbmd1aXNoZWQsIG5vdCBvbmx5IGJ5IGhpcyByZWFzb24sIGJ1dCBieSB0aGlzIHNpbmd1bGFyIH"
	    "Bhc3Npb24gZnJvbSBvdGhlciBhbmltYWxzLCB3aGljaCBpcyBhIGx1c3Qgb2YgdGhlIG1pbmQsIHRoYXQgYnkgYSBw"
	    "ZXJzZXZlcmFuY2Ugb2YgZGVsaWdodCBpbiB0aGUgY29udGludWVkIGFuZCBpbmRlZmF0aWdhYmxlIGdlbmVyYXRpb2"
	    "4gb2Yga25vd2xlZGdlLCBleGNlZWRzIHRoZSBzaG9ydCB2ZWhlbWVuY2Ugb2YgYW55IGNhcm5hbCBwbGVhc3VyZS4"
	    "=";

	char buffer1[BUFFER_SIZE];
	if (BASE64_ENCODE(str, strlen(str), buffer1, BUFFER_SIZE) <= 0)
		return -1;

	if (strcmp(buffer1, expected) != 0)
		return -1;

	char buffer2[BUFFER_SIZE];
	int len = BASE64_DECODE(buffer1, buffer2, BUFFER_SIZE);
	if (len <= 0)
		return -1;

	buffer2[len] = '\0';
	if (strcmp(buffer2, str) != 0)
		return -1;

	return 0;
}