Function test_rollback_order

graphlite/src/txn/log.rs:341–402

()

    #[test]
    fn test_rollback_order() {
        let txn_id = TransactionId::new();
        let mut log = TransactionLog::new(txn_id);

        // Log operations in order: insert, update, delete
        log.log_operation(UndoOperation::InsertNode {
            graph_path: "/test_graph".to_string(),
            node_id: "node1".to_string(),
        });
        log.log_operation(UndoOperation::UpdateNode {
            graph_path: "/test_graph".to_string(),
            node_id: "node1".to_string(),
            old_properties: HashMap::new(),
            old_labels: vec![],
        });
        log.log_operation(UndoOperation::DeleteNode {
            graph_path: "/test_graph".to_string(),
            node_id: "node1".to_string(),
            deleted_node: Node {
                id: "node1".to_string(),
                labels: vec![],
                properties: HashMap::new(),
            },
        });

        // Rollback should be in reverse order: delete, update, insert
        let rollback_ops: Vec<_> = log.get_rollback_operations().collect();
        assert_eq!(rollback_ops.len(), 3);

        match rollback_ops[0] {
            UndoOperation::DeleteNode {
                graph_path,
                node_id,
                ..
            } => {
                assert_eq!(graph_path, "/test_graph");
                assert_eq!(node_id, "node1");
            }
            _ => panic!("Expected DeleteNode operation first"),
        }
        match rollback_ops[1] {
            UndoOperation::UpdateNode {
                graph_path,
                node_id,
                ..
            } => {
                assert_eq!(graph_path, "/test_graph");
                assert_eq!(node_id, "node1");
            }
            _ => panic!("Expected UpdateNode operation second"),
        }
        match rollback_ops[2] {
            UndoOperation::InsertNode {
                graph_path,
                node_id,
            } => {
                assert_eq!(graph_path, "/test_graph");
                assert_eq!(node_id, "node1");