use Symfony\Component\Validator\Constraints\Type;
use Symfony\Component\Validator\Constraints\TypeValidator;
use Symfony\Component\Validator\Test\ConstraintValidatorTestCase;
class TypeValidatorTest extends ConstraintValidatorTestCase
{ protected static $file;
protected function createValidator(): TypeValidator
{ return new TypeValidator();
} public function testNullIsValid() { $constraint =
new Type(['type' => 'integer'
]);
$this->validator->
validate(null,
$constraint);
$this->
assertNoViolation();
}