public function testSubMenu()
{
$matcher = array('tag' => 'ul', 'attributes' => array('class' => 'nav nav-tabs'), 'child' => array('tag' => 'li', 'attributes' => array('class' => 'dropdown active'), 'descendant' => array('tag' => 'a', 'attributes' => array('class' => 'dropdown-toggle', 'data-toggle' => 'dropdown'), 'content' => 'Dropdown', 'child' => array('tag' => 'b', 'attributes' => array('class' => 'caret'))), 'child' => array('tag' => 'ul', 'attributes' => array('class' => 'dropdown-menu'), 'child' => array('tag' => 'li', 'attributes' => array('class' => 'dropdown-submenu'), 'descendant' => array('tag' => 'a', 'content' => 'Action'), 'child' => array('tag' => 'ul', 'attributes' => array('class' => 'dropdown-menu'), 'child' => array('tag' => 'li', 'child' => array('tag' => 'a', 'content' => 'Sub Action')))))));
$links = Navigation::links(array(array('Dropdown', '#', true, false, array(array('Action', '#', false, false, array(array('Sub Action', '#')))))));
$tabs = Navigation::tabs($links);
$this->assertHTML($matcher, $tabs);
}