public function testUuid()
{
$this->assertTrue(Validator::isUuid('1c0a5830-6025-11de-8a39-0800200c9a66'));
$this->assertTrue(Validator::isUuid('1c0a5831-6025-11de-8a39-0800200c9a66'));
$this->assertTrue(Validator::isUuid('1c0a5832-6025-11de-8a39-0800200c9a66'));
$this->assertFalse(Validator::isUuid('zc0a5832-6025-11de-8a39-0800200c9a66'));
$this->assertFalse(Validator::isUuid('1-1c0a5832-6025-11de-8a39-0800200c9a66'));
}