+
+#[test]
+fn invalid_blinded_route_error() {
+ // Make sure we error as expected if a provided blinded route has 0 or 1 hops.
+ let mut nodes = create_nodes(3);
+ let (node1, node2, node3) = (nodes.remove(0), nodes.remove(0), nodes.remove(0));
+
+ // 0 hops
+ let secp_ctx = Secp256k1::new();
+ let mut blinded_route = BlindedRoute::new::<EnforcingSigner, _, _>(&[node2.get_node_pk(), node3.get_node_pk()], &*node3.keys_manager, &secp_ctx).unwrap();
+ blinded_route.blinded_hops.clear();
+ let err = node1.messenger.send_onion_message(&[], Destination::BlindedRoute(blinded_route)).unwrap_err();
+ assert_eq!(err, SendError::TooFewBlindedHops);
+
+ // 1 hop
+ let mut blinded_route = BlindedRoute::new::<EnforcingSigner, _, _>(&[node2.get_node_pk(), node3.get_node_pk()], &*node3.keys_manager, &secp_ctx).unwrap();
+ blinded_route.blinded_hops.remove(0);
+ assert_eq!(blinded_route.blinded_hops.len(), 1);
+ let err = node1.messenger.send_onion_message(&[], Destination::BlindedRoute(blinded_route)).unwrap_err();
+ assert_eq!(err, SendError::TooFewBlindedHops);
+}