use Symfony\Component\Validator\Exception\UnexpectedValueException;
use Symfony\Component\Validator\Test\ConstraintValidatorTestCase;
/**
* @author Javier Spagnoletti <phansys@gmail.com>
* @author Hugo Hamon <hugohamon@neuf.fr>
*/
class TimezoneValidatorTest extends ConstraintValidatorTestCase
{ protected function createValidator(): TimezoneValidator
{ return new TimezoneValidator();
} public function testNullIsValid() { $this->validator->
validate(null,
new Timezone());
$this->
assertNoViolation();
} public function testEmptyStringIsValid() {