DefaultPasswordGeneratorTest.php

<?php

namespace Drupal\Tests\Core\Password;

use Drupal\Core\Password\DefaultPasswordGenerator;
use Drupal\Tests\UnitTestCase;

/**
 * Unit tests for password generator.
 *
 * @coversDefaultClass \Drupal\Core\Password\DefaultPasswordGenerator
 * @group System
 */
class DefaultPasswordGeneratorTest extends UnitTestCase {
    
    /**
     * @covers ::generate
     */
    public function testGenerate() {
        $generator = new DefaultPasswordGenerator();
        $password = $generator->generate();
        $this->assertEquals(10, strlen($password));
        $password = $generator->generate(32);
        $this->assertEquals(32, strlen($password));
    }

}