Function parallel_map_preserves_order

nodedb/src/engine/graph/olap/parallel.rs:299–312

()

    #[test]
    fn parallel_map_preserves_order() {
        let snap = make_snapshot();
        let config = ParallelConfig {
            num_threads: 4,
            min_partition_size: 10,
        };

        // Map node_id → node_id to verify ordering.
        let ids: Vec<u32> = parallel_map(&snap, &config, |node, _| node);

        for (i, &id) in ids.iter().enumerate() {
            assert_eq!(id, i as u32, "order mismatch at index {i}");
        }
    }
}