public function testBadMailAddresses()
 {
     $address1 = MailAddress::create()->setAddress("vasya@example.com");
     $address2 = MailAddress::create()->setAddress("va sya@example.com");
     try {
         $address1->toString();
         $address2->toString();
         $this->fail();
     } catch (WrongArgumentException $e) {
         //pass
     }
 }