def test__node_finder(self):
        """Test the _node_finder method."""
        nodes = StorageObject.objects.filter(id=self.file.id)
        result = self.vgw._node_finder(nodes)
        node = self.vgw._get_node_from_result(result)
        self.assertEqual(node.id, self.file.id)
        self.assertEqual(node.content_hash, self.file.content_hash)