Add test for server not responding

object_store/src/client/retry.rs

@@ -364,6 +364,19 @@ mod tests {
         assert_eq!(e.retries, retry.max_retries);
         assert_eq!(e.message, "502 Bad Gateway");
 
+        // Panic results in a incomplete message error in the client
+        mock.push_fn(|_| {panic!()});
+        let r = do_request().await.unwrap();
+        assert_eq!(r.status(), StatusCode::OK);
+
+        // Gives up after retrying mulitiple panics
+        for _ in 0..=retry.max_retries {
+            mock.push_fn(|_| {panic!()});
+        }
+        let e = do_request().await.unwrap_err();
+        assert_eq!(e.retries, retry.max_retries);
+        assert_eq!(e.message, "request error");
+
         // Shutdown
         mock.shutdown().await
     }