use Symfony\Component\Validator\Constraints\CidrValidator;
use Symfony\Component\Validator\Constraints\Ip;
use Symfony\Component\Validator\Constraints\NotNull;
use Symfony\Component\Validator\Exception\UnexpectedTypeException;
use Symfony\Component\Validator\Exception\UnexpectedValueException;
use Symfony\Component\Validator\Test\ConstraintValidatorTestCase;
class CidrValidatorTest extends ConstraintValidatorTestCase
{ protected function createValidator(): CidrValidator
{ return new CidrValidator();
} public function testNullIsValid() { $this->validator->
validate(null,
new Cidr());
$this->
assertNoViolation();
} public function testEmptyStringIsValid() {