feat: correct handling of vouchers

tests/Form/Model/ParticipantEditDtoTest.php

@@ -8,7 +8,14 @@ use App\BusProNet\Model\Travel;
 use App\Form\Model\BookingDto;
 use App\Form\Model\ParticipantDto;
 use App\Form\Model\ParticipantEditDto;
+use App\Service\BookingPriceCalculatorService;
+use App\Service\VoucherValidationService;
+use App\Validator\Constraints\PromoVoucherValidator;
+use App\Validator\Constraints\PurchaseVoucherValidator;
 use PHPUnit\Framework\TestCase;
+use Symfony\Component\Validator\Constraint;
+use Symfony\Component\Validator\ConstraintValidatorFactoryInterface;
+use Symfony\Component\Validator\ConstraintValidatorInterface;
 use Symfony\Component\Validator\Validation;
 use Symfony\Component\Validator\Validator\ValidatorInterface;
 
@@ -25,8 +32,37 @@ class ParticipantEditDtoTest extends TestCase
 
     protected function setUp(): void
     {
+        // Create mock services for validator dependencies
+        $mockVoucherService = $this->createMock(VoucherValidationService::class);
+        $mockPriceCalculatorService = $this->createMock(BookingPriceCalculatorService::class);
+
+        // Create custom validator factory that can inject dependencies
+        $validatorFactory = new class($mockVoucherService, $mockPriceCalculatorService) implements ConstraintValidatorFactoryInterface {
+            public function __construct(
+                private readonly VoucherValidationService $voucherService,
+                private readonly BookingPriceCalculatorService $priceCalculatorService,
+            ) {
+            }
+
+            public function getInstance(Constraint $constraint): ConstraintValidatorInterface
+            {
+                $className = $constraint->validatedBy();
+
+                if (PurchaseVoucherValidator::class === $className) {
+                    return new PurchaseVoucherValidator($this->voucherService);
+                }
+
+                if (PromoVoucherValidator::class === $className) {
+                    return new PromoVoucherValidator($this->voucherService, $this->priceCalculatorService);
+                }
+
+                return new $className();
+            }
+        };
+
         $this->validator = Validation::createValidatorBuilder()
             ->enableAttributeMapping()
+            ->setConstraintValidatorFactory($validatorFactory)
             ->getValidator();
     }