Fix composite validation test for Symfony < 5.1

tests/Functional/App/Validator/AtLeastOneOf.php

@@ -0,0 +1,37 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Overblog\GraphQLBundle\Tests\Functional\App\Validator;
+
+use Symfony\Component\Validator\AtLeastOneOf as BaseAtLeastOneOf;
+use Symfony\Component\Validator\Constraint;
+
+if (class_exists(BaseAtLeastOneOf::class)) {
+    class AtLeastOneOf extends BaseAtLeastOneOf
+    {
+    }
+} else {
+    class AtLeastOneOf extends Constraint
+    {
+        public string $message = 'Mock constraint';
+
+        /**
+         * @var array
+         */
+        public $constraints = [];
+
+        /**
+         * @var bool
+         */
+        public $includeInternalMessages = true;
+
+        /**
+         * @return class-string
+         */
+        public function validatedBy(): string
+        {
+            return MockValidator::class;
+        }
+    }
+}

tests/Functional/App/config/validator/mapping/Period.types.yml

@@ -6,7 +6,7 @@ Period:
                 type: String!
                 validation:
                     - Date: ~
-                    - AtLeastOneOf:
+                    - Overblog\GraphQLBundle\Tests\Functional\App\Validator\AtLeastOneOf:
                         constraints:
                             - GreaterThanOrEqual: '-100 years'
                         message: "Year should be GreaterThanOrEqual -100."