/**
  * test search relations
  */
 public function testSearchRelations()
 {
     // fetch a set of addressbook ids
     $relations = $this->_object->getRelations($this->_crmId['model'], $this->_crmId['backend'], $this->_crmId['id']);
     $relatedContacts = $relations->filter('related_model', 'Addressbook_Model_Contact');
     $adbFilterResult = $relatedContacts->related_id;
     // get all lead relations where the set of adb ids is related to
     $filter = new Tinebase_Model_RelationFilter(array(array('field' => 'own_model', 'operator' => 'equals', 'value' => 'Crm_Model_Lead'), array('field' => 'related_model', 'operator' => 'equals', 'value' => 'Addressbook_Model_Contact'), array('field' => 'related_id', 'operator' => 'in', 'value' => $adbFilterResult)));
     $db = Tinebase_Core::getDb();
     #$db->query("\n /* fetch relations */ \n");
     $relations = $this->_object->search($filter, NULL);
     $this->assertEquals(count($adbFilterResult), count($relations), ' search result does not fit');
 }