public function testAddLeaf()
{
$_SERVER['REQUEST_URI'] = '/first';
$tree = array(array('name' => 'First Nav Item', 'href' => '/first'), array('name' => 'Second Nav Item', 'href' => '/second'));
$n = new Nav($tree);
$n->addLeaf('Second Nav Item', array('name' => 'A Brand New Child', 'href' => 'a-brand-new-child'));
$navString = <<<NAV
<a href="/second">Second Nav Item</a>
<ul>
<li>
<a href="/second/a-brand-new-child">A Brand New Child</a>
</li>
</ul>
NAV;
$this->assertContains($navString, (string) $n);
}