diff --git a/src/middleware/axum.rs b/src/middleware/axum.rs
index 0722a44..ccc83a7 100644
--- a/src/middleware/axum.rs
+++ b/src/middleware/axum.rs
@@ -134,75 +134,3 @@ fn http_route<B>(req: &Request<B>) -> &str {
         .get::<MatchedPath>()
         .map_or_else(|| "", |mp| mp.as_str())
 }
-
-// #[cfg(test)]
-// mod tests {
-//     use super::*;
-//     use axum::{body::Body, routing::get, Router};
-//     use http::{Request, StatusCode};
-//     use rstest::rstest;
-//     use testing_tracing_opentelemetry::{assert_trace, FakeEnvironment};
-//     use tower::Service;
-
-//     #[rstest]
-//     #[case("filled_http_route_for_existing_route", "http://example.com/users/123", &[], false)]
-//     #[case("empty_http_route_for_nonexisting_route", "/idontexist/123", &[], false)]
-//     #[case("status_code_on_close_for_ok", "/users/123", &[], false)]
-//     #[case("status_code_on_close_for_error", "/status/500", &[], false)]
-//     #[case("filled_http_headers", "/users/123", &[("user-agent", "tests"), ("x-forwarded-for", "127.0.0.1")], false)]
-//     #[case("call_with_w3c_trace", "/users/123", &[("traceparent", "00-b2611246a58fd7ea623d2264c5a1e226-b2c9b811f2f424af-01")], true)]
-//     #[case("trace_id_in_child_span", "/with_child_span", &[], false)]
-//     #[case("trace_id_in_child_span_for_remote", "/with_child_span", &[("traceparent", "00-b2611246a58fd7ea623d2264c5a1e226-b2c9b811f2f424af-01")], true)]
-//     // failed to extract "http.route" before axum-0.6.15
-//     // - https://github.com/davidB/axum-tracing-opentelemetry/pull/54 (reverted)
-//     // - https://github.com/tokio-rs/axum/issues/1441#issuecomment-1272158039
-//     #[case("extract_route_from_nested", "/nest/123", &[], false)]
-//     #[tokio::test(flavor = "multi_thread")]
-//     async fn check_span_event(
-//         #[case] name: &str,
-//         #[case] uri: &str,
-//         #[case] headers: &[(&str, &str)],
-//         #[case] is_trace_id_constant: bool,
-//     ) {
-//         let fake_env = FakeEnvironment::setup().await;
-//         {
-//             let mut svc = Router::new()
-//                 .route("/users/:id", get(|| async { StatusCode::OK }))
-//                 .route(
-//                     "/status/500",
-//                     get(|| async { StatusCode::INTERNAL_SERVER_ERROR }),
-//                 )
-//                 .route(
-//                     "/with_child_span",
-//                     get(|| async {
-//                         let span = tracing::span!(tracing::Level::INFO, "my child span");
-//                         span.in_scope(|| {
-//                             // Any trace events in this closure or code called by it will occur within
-//                             // the span.
-//                         });
-//                         StatusCode::OK
-//                     }),
-//                 )
-//                 .nest(
-//                     "/nest",
-//                     Router::new()
-//                         .route("/:nest_id", get(|| async {}))
-//                         .fallback(|| async { (StatusCode::NOT_FOUND, "inner fallback") }),
-//                 )
-//                 .fallback(|| async { (StatusCode::NOT_FOUND, "outer fallback") })
-//                 .layer(OtelAxumLayer::default());
-//             let mut builder = Request::builder();
-//             for (key, value) in headers {
-//                 builder = builder.header(*key, *value);
-//             }
-//             let req = builder.uri(uri).body(Body::empty()).unwrap();
-//             let _res = svc.call(req).await.unwrap();
-
-//             // while res.data().await.is_some() {}
-//             // res.trailers().await.unwrap();
-//             // drop(res);
-//         }
-//         let (tracing_events, otel_spans) = fake_env.collect_traces().await;
-//         assert_trace(name, tracing_events, otel_spans, is_trace_id_constant);
-//     }
-// }