public function testOrderRand()
 {
     $model = new Kwf_Model_FnF();
     $data = array();
     for ($i = 0; $i < 100; $i++) {
         $data[] = array('id' => $i + 1);
     }
     $model->setData($data);
     $select = $model->select()->order(Kwf_Model_Select::ORDER_RAND);
     $ids1 = array();
     foreach ($model->fetchAll($select) as $row) {
         $ids1[] = $row->id;
     }
     $ids2 = array();
     foreach ($model->fetchAll($select) as $row) {
         $ids2[] = $row->id;
     }
     $this->assertTrue($ids1 != $ids2);
 }