public function testSortsNodes()
{
$new_node = M::mock('Gittern\\Entity\\GitObject\\Node\\BaseNode', array('getName' => 'aardvark'));
$this->tree->addNode($new_node);
$this->assertEquals(array($new_node, $this->node_mock), $this->tree->getNodes());
$first_node = M::mock('Gittern\\Entity\\GitObject\\Node\\BaseNode', array('getName' => 'Zebra'));
$this->tree->addNode($first_node);
$this->assertEquals(array($first_node, $new_node, $this->node_mock), $this->tree->getNodes());
}