public function isInstanceOf($object, $class, $message = '')
    {
        $this->assertion->setActual($object);

        return $this->assertion->is->instanceof($class, $message);
    }
public function isInstanceOf($object, $class, $message = '')
    {
        $this->assertion->setActual($object);

        return $this->assertion->is->instanceof($class, $message);
    }
public function isInstanceOf ( $ object , $ class , $ message = '' ) { $ this -> assertion -> setActual ( $ object ) ; return $ this -> assertion -> is -> instanceof ( $ class , $ message ) ; }
Perform an instanceof assertion.

@param object $object
@param string $class
@param string $message
Perform an instanceof assertion .