phpOMS/tests/Utils/RnG/LinearCongruentialGeneratorTest.php

<?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\RnG;

use phpOMS\Utils\RnG\LinearCongruentialGenerator;

/**
 * @internal
 */
class LinearCongruentialGeneratorTest extends \PHPUnit\Framework\TestCase
{
    public function testBsdRng() : void
    {
        self::assertEquals(12345, LinearCongruentialGenerator::bsd());

        if (\PHP_INT_SIZE > 4) {
            self::assertEquals(1406932606, LinearCongruentialGenerator::bsd());
            self::assertEquals(654583775, LinearCongruentialGenerator::bsd());
            self::assertEquals(1449466924, LinearCongruentialGenerator::bsd());
        }

        self::assertEquals(LinearCongruentialGenerator::bsd(1), LinearCongruentialGenerator::bsd(1));
        self::assertNotEquals(LinearCongruentialGenerator::bsd(0), LinearCongruentialGenerator::bsd(1));
    }

    public function testMsRng() : void
    {
        self::assertEquals(38, LinearCongruentialGenerator::msvcrt());
        self::assertEquals(7719, LinearCongruentialGenerator::msvcrt());

        if (\PHP_INT_SIZE > 4) {
            self::assertEquals(21238, LinearCongruentialGenerator::msvcrt());
            self::assertEquals(2437, LinearCongruentialGenerator::msvcrt());
        }

        self::assertEquals(LinearCongruentialGenerator::msvcrt(1), LinearCongruentialGenerator::msvcrt(1));
        self::assertNotEquals(LinearCongruentialGenerator::msvcrt(0), LinearCongruentialGenerator::msvcrt(1));
    }
}