+
+#[test]
+fn reply_path() {
+ let nodes = create_nodes(4);
+ let secp_ctx = Secp256k1::new();
+
+ // Destination::Node
+ let reply_path = BlindedRoute::new(&[nodes[2].get_node_pk(), nodes[1].get_node_pk(), nodes[0].get_node_pk()], &*nodes[0].keys_manager, &secp_ctx).unwrap();
+ nodes[0].messenger.send_onion_message(&[nodes[1].get_node_pk(), nodes[2].get_node_pk()], Destination::Node(nodes[3].get_node_pk()), Some(reply_path)).unwrap();
+ pass_along_path(&nodes, None);
+ // Make sure the last node successfully decoded the reply path.
+ nodes[3].logger.assert_log_contains(
+ "lightning::onion_message::messenger".to_string(),
+ format!("Received an onion message with path_id: None and reply_path").to_string(), 1);
+
+ // Destination::BlindedRoute
+ let blinded_route = BlindedRoute::new(&[nodes[1].get_node_pk(), nodes[2].get_node_pk(), nodes[3].get_node_pk()], &*nodes[3].keys_manager, &secp_ctx).unwrap();
+ let reply_path = BlindedRoute::new(&[nodes[2].get_node_pk(), nodes[1].get_node_pk(), nodes[0].get_node_pk()], &*nodes[0].keys_manager, &secp_ctx).unwrap();
+
+ nodes[0].messenger.send_onion_message(&[], Destination::BlindedRoute(blinded_route), Some(reply_path)).unwrap();
+ pass_along_path(&nodes, None);
+ nodes[3].logger.assert_log_contains(
+ "lightning::onion_message::messenger".to_string(),
+ format!("Received an onion message with path_id: None and reply_path").to_string(), 2);
+}
+
+#[test]
+fn peer_buffer_full() {
+ let nodes = create_nodes(2);
+ for _ in 0..188 { // Based on MAX_PER_PEER_BUFFER_SIZE in OnionMessenger
+ nodes[0].messenger.send_onion_message(&[], Destination::Node(nodes[1].get_node_pk()), None).unwrap();
+ }
+ let err = nodes[0].messenger.send_onion_message(&[], Destination::Node(nodes[1].get_node_pk()), None).unwrap_err();
+ assert_eq!(err, SendError::BufferFull);
+}