Function shortest_path_unreachable

nodedb-graph/src/traversal.rs:430–434

()

    #[test]
    fn shortest_path_unreachable() {
        let csr = make_csr();
        let path = csr.shortest_path("d", "a", Some("KNOWS"), 5, DEFAULT_MAX_VISITED, None);
        assert!(path.is_none());
    }

    #[test]
    fn shortest_path_depth_limit() {