<?php
require_once dirname(__FILE__).'/../include/CWebTest.php';
class testDemo extends CWebTest {
        public function testDemo_TagsFilter() {
                $this->page->login();                for ($i = 0; $i < 10; $i++) {
                        $this->page->open('zabbix.php?port=10051&action=host.view&groupids%5B%5D=4');
                        $this->query('button:Apply')->one()->waitUntilClickable()->click();
                        $this->page->waitUntilReady();                        
                        $this->query('button:Reset')->one()->click();
                }
        }
}

 Failed to write session data (user). Please verify that the current setting of session.save_path is correct (/var/lib/php/sessions) [: -> CConfigFile->{closure}()]