Function version_handshake_v0_rejected

nodedb/tests/native_protocol.rs:275–299

()

/// (proto v0 only) with a `VersionMismatch` error and clean disconnect.
#[tokio::test]
async fn version_handshake_v0_rejected() {
    // PROTO_VERSION_MIN is 1, so a client advertising [0, 0] has no overlap.
    if PROTO_VERSION_MIN == 0 {
        // If MIN were ever lowered to 0, v0 clients would be accepted — skip.
        return;
    }

    let server = NativeTestServer::start().await;

    let hello = HelloFrame {
        proto_min: 0,
        proto_max: 0,
        capabilities: 0,
    };
    let result = do_handshake(server.addr, &hello).await;
    server.shutdown().await;

    let err_frame = result.expect_err("v0-only client must be rejected");
    assert_eq!(
        err_frame.code,
        HelloErrorCode::VersionMismatch,
        "error code must be VersionMismatch, got {:?}",
        err_frame.code
    );
}

/// Version handshake: server rejects a client whose range is entirely above
/// the server maximum (proto v2+) with a `VersionMismatch` error.