TbHtml::verticalButtonGroup PHP Method

    public static function verticalButtonGroup(array $buttons, $htmlOptions = array())
    {
        $htmlOptions['vertical'] = true;
        return self::buttonGroup($buttons, $htmlOptions);
    }

 public function testVerticalButtonGroup()
 {
     $I = $this->codeGuy;
     $html = TbHtml::verticalButtonGroup(array(array('icon' => TbHtml::ICON_ALIGN_LEFT), array('icon' => TbHtml::ICON_ALIGN_CENTER), array('icon' => TbHtml::ICON_ALIGN_RIGHT), array('icon' => TbHtml::ICON_ALIGN_JUSTIFY)));
     $group = $I->createNode($html, 'div.btn-group');
     $I->seeNodeCssClass($group, 'btn-group-vertical');
 }