use Symfony\Component\Validator\Constraints\All;
use Symfony\Component\Validator\Constraints\AllValidator;
use Symfony\Component\Validator\Constraints\NotNull;
use Symfony\Component\Validator\Constraints\Range;
use Symfony\Component\Validator\Exception\UnexpectedValueException;
use Symfony\Component\Validator\Test\ConstraintValidatorTestCase;
class AllValidatorTest extends ConstraintValidatorTestCase
{ protected function createValidator(): AllValidator
{ return new AllValidator();
} public function testNullIsValid() { $this->validator->
validate(null,
new All(new Range(['min' => 4
])));
$this->
assertNoViolation();
} public function testThrowsExceptionIfNotTraversable() {