Drug::listBySubspecialty PHP Method

    public function listBySubspecialty($subspecialty_id)
    {
        $criteria = new CDbCriteria();
        $criteria->compare('subspecialty_id', $subspecialty_id);
        return CHtml::listData(self::model()->with('subspecialtyAssignments')->findAll($criteria), 'id', 'label');
    }

 /**
  * @covers Drug::listBySubspecialty
  * @todo	Implement testListBySubspecialty().
  */
 public function testListBySubspecialty()
 {
     $result = $this->model->listBySubspecialty('1');
     $expected = $this->drugs('drug1')->listBySubspecialty('1');
     $this->assertEquals($result, $expected);
 }