fn test_ebpf_sock_op_max_connections()

in nfm-common/src/sock_ops_handler.rs [982:1024]

• 39 lines of code
• 2 McCabe index (conditional complexity)

    fn test_ebpf_sock_op_max_connections() {
        let mut mock_ktime_us: u64 = 99;
        let mut cookie: u64 = 197;
        let mut mock_ebpf_maps = MockEbpfMaps::new();

        let effective_max = MAX_ENTRIES_SK_PROPS_HI.min(MAX_ENTRIES_SK_STATS_HI);
        for _ in 0..effective_max {
            run_sock_ops_test(
                cookie,
                BPF_SOCK_OPS_TCP_CONNECT_CB,
                &mut mock_ebpf_maps,
                mock_ktime_us,
                Ok(()),
            );
            run_sock_ops_test_with_args(
                cookie,
                BPF_TCP_SYN_SENT,
                BPF_SOCK_OPS_STATE_CB,
                [BPF_TCP_SYN_SENT, BPF_TCP_ESTABLISHED],
                &mut mock_ebpf_maps,
                mock_ktime_us + 10,
                Ok(()),
            );

            cookie += 3;
            mock_ktime_us += 10;
        }

        // Validate results.
        assert!(effective_max > 0);
        assert_eq!(
            mock_ebpf_maps.counters().active_connect_events,
            effective_max.try_into().unwrap(),
        );
        assert_eq!(
            mock_ebpf_maps.NFM_SK_PROPS.data.len(),
            effective_max.try_into().unwrap()
        );
        assert_eq!(
            mock_ebpf_maps.NFM_SK_STATS.data.len(),
            effective_max.try_into().unwrap()
        );
    }