/**
  * Return the set value
  *
  * @return mixed
  */
 public function mock($aArgs)
 {
     $mValue = parent::mock($aArgs);
     if (count($this->aValues) > 0) {
         $this->setValue(array_shift($this->aValues));
     }
     return $mValue;
 }
 /**
  * Return the set value
  *
  * @return integer
  */
 public function mock($aArgs)
 {
     $iValue = parent::mock($aArgs);
     $this->setValue($iValue + $this->iStep);
     return $iValue;
 }