explo new storm with more volatile

tests/library/Class/NewsletterMailingTest.php

@@ -25,6 +25,12 @@ abstract class NewsletterMailingTestCase extends ModelTestCase {
   public function setup() {
     parent::setup();
 
+    Zend_Registry::set('sql',
+                       $this->mock()
+                       ->whenCalled('fetchAllByColumn')
+                       ->with('select distinct(bib_admin_users.mail) from bib_admin_users where disable_newsletter=1 and mail<>"" and mail is not null')
+                       ->answers([]));
+
     $time_source = new TimeSourceForTest('2014-05-23 14:30:00');
     Class_Newsletter::setTimeSource($time_source);