+
+#[test]
+fn test_0conf_ann_sigs_racing_conf() {
+ // Previously we had a bug where we'd panic when receiving a counterparty's
+ // announcement_signatures message for a 0conf channel pending confirmation on-chain. Here we
+ // check that we just error out, ignore the announcement_signatures message, and proceed
+ // instead.
+ let chanmon_cfgs = create_chanmon_cfgs(2);
+ let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
+ let mut chan_config = test_default_channel_config();
+ chan_config.manually_accept_inbound_channels = true;
+
+ let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, Some(chan_config)]);
+ let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
+
+ // This is the default but we force it on anyway
+ chan_config.channel_handshake_config.announced_channel = true;
+ let (tx, ..) = open_zero_conf_channel(&nodes[0], &nodes[1], Some(chan_config));
+
+ // We can use the channel immediately, but we can't announce it until we get 6+ confirmations
+ send_payment(&nodes[0], &[&nodes[1]], 100_000);
+
+ let scid = confirm_transaction(&nodes[0], &tx);
+ let as_announcement_sigs = get_event_msg!(nodes[0], MessageSendEvent::SendAnnouncementSignatures, nodes[1].node.get_our_node_id());
+
+ // Handling the announcement_signatures prior to the first confirmation would panic before.
+ nodes[1].node.handle_announcement_signatures(&nodes[0].node.get_our_node_id(), &as_announcement_sigs);
+
+ assert_eq!(confirm_transaction(&nodes[1], &tx), scid);
+ let bs_announcement_sigs = get_event_msg!(nodes[1], MessageSendEvent::SendAnnouncementSignatures, nodes[0].node.get_our_node_id());
+
+ nodes[0].node.handle_announcement_signatures(&nodes[1].node.get_our_node_id(), &bs_announcement_sigs);
+ let as_announcement = nodes[0].node.get_and_clear_pending_msg_events();
+ assert_eq!(as_announcement.len(), 1);
+}