public function test_tbl_link_clone()
    {
        $this->assertEquals('<a name="Clone" class="btn btn-default btn-mini btn-xs ajax_clone"><i class="icon-code-fork fa fa-code-fork"></i> Clone</a>', trim(self::form_no_chain($r)->tbl_link_clone()));
        $this->assertEquals('<a name="test" class="btn btn-default btn-mini btn-xs ajax_clone"><i class="icon-code-fork fa fa-code-fork"></i> test</a>', trim(self::form_no_chain($r)->tbl_link_clone('test')));
        $r['clone_link'] = './?object=someobject&action=someaction';