<?php
/**
 * Orange Management
 *
 * PHP Version 7.4
 *
 * @package   tests
 * @copyright Dennis Eichhorn
 * @license   OMS License 1.0
 * @version   1.0.0
 * @link      https://orange-management.org
 */
declare(strict_types=1);

namespace phpOMS\tests\Utils\Encoding\Huffman;

use phpOMS\Utils\Encoding\Huffman\Huffman;

/**
 * @testdox phpOMS\tests\Utils\Encoding\Huffman\HuffmanTest: Data can be encoded with huffman
 *
 * @internal
 */
class HuffmanTest extends \PHPUnit\Framework\TestCase
{
    /**
     * @testdox Encoding and decoding empty data results in an empty output
     * @group framework
     */
    public function testEmpty() : void
    {
        $huff = new Huffman();
        self::assertEquals('', $huff->encode(''));
        self::assertEquals('', $huff->decode(''));
    }

    /**
     * @testdox Data can be huffman encoded and decoded
     * @group framework
     */
    public function testHuffman() : void
    {
        $huff = new Huffman();

        self::assertEquals(
            \hex2bin('a42f5debafd35bee6a940f78f38638fb3f4d6fd13cc672cf01d61bb1ce59e03cdbe89e8e56b5d63aa61387d1ba10'),
            $huff->encode('This is a test message in order to test the encoding and decoding of the Huffman algorithm.')
        );

        $man = new Huffman();
        $man->setDictionary($huff->getDictionary());

        self::assertEquals(
            'This is a test message in order to test the encoding and decoding of the Huffman algorithm.',
            $man->decode(\hex2bin('a42f5debafd35bee6a940f78f38638fb3f4d6fd13cc672cf01d61bb1ce59e03cdbe89e8e56b5d63aa61387d1ba10'))
        );
    }
}