Fix usrlist unit tests

lib/Doctrine/Repositories/UsrListOwnerRepository.php

@@ -12,6 +12,7 @@ use Doctrine\ORM\EntityRepository;
  */
 class UsrListOwnerRepository extends EntityRepository
 {
+
   /**
    *
    *
@@ -37,4 +38,36 @@ class UsrListOwnerRepository extends EntityRepository
     return $owner;
   }
 
+  /**
+   *
+   *
+   * @param \Entities\UsrList $list
+   * @param type $usr_id
+   * @return \Entities\UsrList
+   */
+  public function findByListAndUsrId(\Entities\UsrList $list, $usr_id)
+  {
+    $dql = 'SELECT o FROM Entities\UsrListOwner o
+              JOIN o.list l
+            WHERE l.id = :list_id AND o.usr_id = :usr_id';
+    
+    $params = array(
+        'usr_id' => $usr_id,
+        'list_id' => $list->getId()
+    );
+
+    $query = $this->_em->createQuery($dql);
+    $query->setParameters($params);
+
+    $owner = $query->getSingleResult();
+    
+    /* @var $owner \Entities\UsrListOwner */
+    if (null === $owner)
+    {
+      throw new \Exception_NotFound(_('Owner is not found'));
+    }
+
+    return $owner;
+  }
+
 }