public function testReturnFalse()
{
$_SERVER['REQUEST_URI'] = '/first';
$tree = array(array('name' => 'First Nav Item', 'href' => '#', 'children' => array(array('name' => 'First Child', 'href' => '/first/first-child'), array('name' => 'Second Child', 'href' => '/first/second-child'))));
$n = new Nav($tree);
$this->assertFalse($n->isReturnFalse());
$n->returnFalse(true);
$this->assertTrue($n->isReturnFalse());
$this->assertContains('onclick="return false;"', $n->render(true));
}