+
+#[test]
+fn too_big_packet_error() {
+ // Make sure we error as expected if a packet is too big to send.
+ let nodes = create_nodes(1);
+
+ let hop_secret = SecretKey::from_slice(&hex::decode("0101010101010101010101010101010101010101010101010101010101010101").unwrap()[..]).unwrap();
+ let secp_ctx = Secp256k1::new();
+ let hop_node_id = PublicKey::from_secret_key(&secp_ctx, &hop_secret);
+
+ let hops = [hop_node_id; 400];
+ let err = nodes[0].messenger.send_onion_message(&hops, Destination::Node(hop_node_id)).unwrap_err();
+ assert_eq!(err, SendError::TooBigPacket);
+}