diff --git a/tests/Assets/CustomClassMetadataFactory.php b/tests/Assets/CustomClassMetadataFactory.php
new file mode 100644
index 0000000..40274a5
--- /dev/null
+++ b/tests/Assets/CustomClassMetadataFactory.php
@@ -0,0 +1,17 @@
+<?php
+
+declare(strict_types=1);
+
+namespace DoctrineMongoODMModuleTest\Assets;
+
+use Doctrine\ODM\MongoDB\Mapping\ClassMetadataFactoryInterface;
+use Doctrine\Persistence\Mapping\ClassMetadata;
+
+/**
+ * @method list<ClassMetadata> getAllMetadata()
+ * @method ClassMetadata[] getLoadedMetadata()
+ * @method ClassMetadata getMetadataFor($className)
+ */
+abstract class CustomClassMetadataFactory implements ClassMetadataFactoryInterface
+{
+}
diff --git a/tests/Assets/DefaultDocumentRepository.php b/tests/Assets/CustomDocumentRepository.php
similarity index 79%
rename from tests/Assets/DefaultDocumentRepository.php
rename to tests/Assets/CustomDocumentRepository.php
index bd838b1..ccbf09a 100644
--- a/tests/Assets/DefaultDocumentRepository.php
+++ b/tests/Assets/CustomDocumentRepository.php
@@ -6,7 +6,7 @@
 
 use Doctrine\ODM\MongoDB\Repository\DocumentRepository;
 
-class DefaultDocumentRepository extends DocumentRepository
+class CustomDocumentRepository extends DocumentRepository
 {
     public function isCustomDefaultDocumentRepository(): bool
     {
diff --git a/tests/Doctrine/ConfigurationFactoryTest.php b/tests/Doctrine/ConfigurationFactoryTest.php
index 92eb731..4182688 100644
--- a/tests/Doctrine/ConfigurationFactoryTest.php
+++ b/tests/Doctrine/ConfigurationFactoryTest.php
@@ -14,9 +14,10 @@
 use Doctrine\Persistence\Mapping\Driver\MappingDriver;
 use DoctrineMongoODMModule\Service\ConfigurationFactory;
 use DoctrineMongoODMModuleTest\AbstractTest;
+use DoctrineMongoODMModuleTest\Assets\CustomClassMetadataFactory;
+use DoctrineMongoODMModuleTest\Assets\CustomDocumentRepository;
 use DoctrineMongoODMModuleTest\Assets\CustomRepositoryFactory;
 use DoctrineMongoODMModuleTest\Assets\CustomType;
-use DoctrineMongoODMModuleTest\Assets\DefaultDocumentRepository as CustomDocumentRepository;
 use Laminas\ServiceManager\ServiceManager;
 
 use function assert;
@@ -84,7 +85,7 @@ public function testCreation(): void
                             'types'                                  => [
                                 $typeName = 'foo_type' => $typeClassName = CustomType::class,
                             ],
-                            'classMetadataFactoryName'               => 'stdClass',
+                            'classMetadataFactoryName'               => CustomClassMetadataFactory::class,
                             'repositoryFactory'                      => CustomRepositoryFactory::class,
                             'default_document_repository_class_name' => CustomDocumentRepository::class,
                         ],
@@ -118,8 +119,8 @@ public function testCreation(): void
         $this->assertSame($persistentCollectionGenerator, $config->getPersistentCollectionGenerator());
 
         $this->assertInstanceOf($typeClassName, Type::getType($typeName));
+        $this->assertSame(CustomClassMetadataFactory::class, $config->getClassMetadataFactoryName());
         $this->assertSame($repositoryFactory, $config->getRepositoryFactory());
-
         $this->assertSame(CustomDocumentRepository::class, $config->getDefaultDocumentRepositoryClassName());
     }
 }
diff --git a/tests/Doctrine/CustomDefaultRepositoryTest.php b/tests/Doctrine/CustomDefaultRepositoryTest.php
index ebace8d..5ab6e1d 100644
--- a/tests/Doctrine/CustomDefaultRepositoryTest.php
+++ b/tests/Doctrine/CustomDefaultRepositoryTest.php
@@ -5,7 +5,7 @@
 namespace DoctrineMongoODMModuleTest\Doctrine;
 
 use DoctrineMongoODMModuleTest\AbstractTest;
-use DoctrineMongoODMModuleTest\Assets\DefaultDocumentRepository;
+use DoctrineMongoODMModuleTest\Assets\CustomDocumentRepository;
 use DoctrineMongoODMModuleTest\Assets\Document\Simple;
 
 use function assert;
@@ -18,8 +18,8 @@ public function testCustomDefaultRepository(): void
 
         $repository = $documentManager->getRepository(Simple::class);
 
-        $this->assertInstanceOf(DefaultDocumentRepository::class, $repository);
-        assert($repository instanceof DefaultDocumentRepository);
+        $this->assertInstanceOf(CustomDocumentRepository::class, $repository);
+        assert($repository instanceof CustomDocumentRepository);
         $this->assertTrue($repository->isCustomDefaultDocumentRepository());
     }
 }
diff --git a/tests/testing.config.php b/tests/testing.config.php
index 7ce89ff..c276c19 100644
--- a/tests/testing.config.php
+++ b/tests/testing.config.php
@@ -13,7 +13,7 @@
         'configuration' => [
             'odm_default' => [
                 'default_db' => 'doctrineMongoODMModuleTest',
-                'default_document_repository_class_name' => Assets\DefaultDocumentRepository::class,
+                'default_document_repository_class_name' => Assets\CustomDocumentRepository::class,
             ],
         ],
         'connection' => [