/**
  * (non-PHPdoc)
  * @see PHPUnit_Framework_TestCase::tearDown()
  */
 public function tearDown()
 {
     $this->_object->__destruct();
     $this->_object = null;
 }
 public function __destruct()
 {
     parent::__destruct();
     $this->_value = null;
 }