v0.32.6_fix1

src/upstream/client_tests.rs

@@ -11,6 +11,23 @@ mod tests {
         .unwrap()
     }
 
+    #[test]
+    fn protocol_observation_requires_a_real_http_response_version() {
+        let backend = backend("protocol-observed", 18090);
+        let client = client(&backend, AddressPolicy::new(&backend).unwrap(), false).unwrap();
+        assert_eq!(client.protocol_stats().last_version, None);
+        let shared = client.clone();
+        // Exercise the response-version recorder independently of the network;
+        // a live TLS ALPN acceptance test must still run on staging.
+        shared.inner.observe_protocol(Version::HTTP_11);
+        shared.inner.observe_protocol(Version::HTTP_2);
+        let observed = client.protocol_stats();
+        assert_eq!(observed.last_version, Some("h2"));
+        assert_eq!(observed.http1_responses, 1);
+        assert_eq!(observed.http2_responses, 1);
+        assert!(observed.observed_at_ms > 0);
+    }
+
     #[test]
     fn generation_recycles_after_request_budget() {
         let backend = backend("rotation-test", 18081);