[fw-general] Zend_Validate problem

[Dmitry Shirokov]

Hey guys.

I tested followig code and little confusing:

        Zend_Loader::loadClass('Zend_Filter_Input');

        $filters = array(
            '*'         => array('StringTrim', 'StripTags')
        );

        $validators = array(
            'url' => array(
                'Hostname',
                'NotEmpty',
            ),
        );

        $input = new Zend_Filter_Input($filters, $validators);
        // we are setting empty data-array
        $input->setData(array());

        if ($input->isValid()) {
            echo 'Valid!';
        } else {
            echo 'errors';
        }

So... result always "Valid!" why? I've tried play with Zend_Filter_Input
options but always got same result. It's correct? :)
Im using 1.0.2 version.

-- 
Thanks, Dmitry