diff --git a/tests/Doctrine/Tests/ORM/Functional/OidReuseTest.php b/tests/Doctrine/Tests/ORM/Functional/OidReuseTest.php
index 40aaf4238..742b183fe 100644
--- a/tests/Doctrine/Tests/ORM/Functional/OidReuseTest.php
+++ b/tests/Doctrine/Tests/ORM/Functional/OidReuseTest.php
@@ -22,11 +22,19 @@ class OidReuseTest extends OrmFunctionalTestCase
 
     public function testOidReuse()
     {
+        $uow = $this->_em->getUnitOfWork();
+        $reflexion = new \ReflectionClass(get_class($uow));
+        $originalEntityDataProperty = $reflexion->getProperty('originalEntityData');
+        $originalEntityDataProperty->setAccessible(true);
+
         $user = new CmsUser();
+        $oid = spl_object_hash($user);
         $this->_em->merge($user);
 
         $user = null;
 
+        $this->assertArrayNotHasKey($oid, $originalEntityDataProperty->getValue($uow));
+
         $user = new CmsUser();
         $this->_em->persist($user);
     }