def test_instantiate_from_nodes(self):
node1 = Node('47.0', '8.0', 10)
node2 = Node('48.0', '9.0', 10)
street = Street.from_nodes(node1, node2)
self.assertTrue(street.get_left_node() == node1)
self.assertTrue(street.get_right_node() == node2)
