public function testLastChild()
{
$html = '<ul><li>One</li><li>Two</li><li>Three</li></ul>';
$document = new Document($html, false);
$list = $document->first('ul');
$this->assertEquals($list->getNode()->lastChild, $list->lastChild()->getNode());
$list = new Element('ul');
$this->assertNull($list->lastChild());
// with text nodes
$html = '<p>Foo <span>Bar</span> Baz</p>';
$document = new Document($html, false);
$paragraph = $document->first('p');
$lastChild = $paragraph->getNode()->lastChild;
$this->assertEquals($lastChild, $paragraph->lastChild()->getNode());
}