diff --git a/unit-test/include/lib/Noalyss_SQLTest.class.php b/unit-test/include/lib/Noalyss_SQLTest.class.php
index fc59e4a2a..adf15b9a2 100644
--- a/unit-test/include/lib/Noalyss_SQLTest.class.php
+++ b/unit-test/include/lib/Noalyss_SQLTest.class.php
@@ -303,6 +303,8 @@ VALUES(1, 'ACTIVITE', 'Activité commerciale Alchimerys sprl');
 
         for ($i=0;$i<count($array);$i++)
         {
+            $this->assertTrue(isset($array[$po_name[$i]]));
+            $this->assertTrue(is_array($array[$po_name[$i]]));
             $this->assertEquals($array[$po_name[$i]]['po_name'],$po_name[$i]);
         }