test(client): Verify socket read timeout restoration after open()

crates/irtt-client/src/client.rs

@@ -476,6 +476,30 @@ mod tests {
         server.join();
     }
 
+    #[test]
+    fn open_restores_configured_read_timeout_after_timeout() {
+        let server = timeout_server(Duration::from_millis(700));
+        let config = ClientConfig {
+            open_timeouts: vec![Duration::from_millis(200)],
+            socket_config: crate::SocketConfig {
+                recv_timeout: Some(Duration::from_millis(450)),
+                ..crate::SocketConfig::default()
+            },
+            ..default_test_config(server.addr)
+        };
+        let mut client = Client::connect(config).unwrap();
+        assert!(matches!(
+            client.open(ClientTimestamp::now()),
+            Err(ClientError::OpenTimeout)
+        ));
+
+        let start = std::time::Instant::now();
+        let mut buf = [0_u8; 1];
+        assert!(client.socket.recv(&mut buf).is_err());
+        assert!(start.elapsed() >= Duration::from_millis(350));
+        server.join();
+    }
+
     fn recv_request_timeout(
         socket: &UdpSocket,
         tx: &mpsc::Sender<Vec<u8>>,