Pass `PaymentParameters` in `get_route_and_payment_hash`
[rust-lightning] / lightning / src / ln / functional_test_utils.rs
index 01f9db53439ca5558cd6f25c2e7a4077e167f7a2..3977952e9847cda1d42ea78f8ce8bababc9391e0 100644 (file)
 //! A bunch of useful utilities for building networks of nodes and exchanging messages between
 //! nodes for functional tests.
 
-use chain::{BestBlock, Confirm, Listen, Watch};
+use chain::{BestBlock, Confirm, Listen, Watch, keysinterface::KeysInterface};
 use chain::channelmonitor::ChannelMonitor;
 use chain::transaction::OutPoint;
 use ln::{PaymentPreimage, PaymentHash, PaymentSecret};
-use ln::channelmanager::{ChainParameters, ChannelManager, ChannelManagerReadArgs, RAACommitmentOrder, PaymentSendFailure, PaymentId};
+use ln::channelmanager::{ChainParameters, ChannelManager, ChannelManagerReadArgs, RAACommitmentOrder, PaymentSendFailure, PaymentId, MIN_CLTV_EXPIRY_DELTA};
 use routing::network_graph::{NetGraphMsgHandler, NetworkGraph};
-use routing::router::{Payee, Route, get_route};
+use routing::router::{PaymentParameters, Route, get_route};
 use ln::features::{InitFeatures, InvoiceFeatures};
 use ln::msgs;
 use ln::msgs::{ChannelMessageHandler,RoutingMessageHandler};
 use util::enforcing_trait_impls::EnforcingSigner;
 use util::test_utils;
-use util::test_utils::TestChainMonitor;
+use util::test_utils::{panicking, TestChainMonitor};
 use util::events::{Event, MessageSendEvent, MessageSendEventsProvider, PaymentPurpose};
 use util::errors::APIError;
 use util::config::UserConfig;
@@ -33,8 +33,6 @@ use bitcoin::blockdata::constants::genesis_block;
 use bitcoin::blockdata::transaction::{Transaction, TxOut};
 use bitcoin::network::constants::Network;
 
-use bitcoin::hashes::sha256::Hash as Sha256;
-use bitcoin::hashes::Hash;
 use bitcoin::hash_types::BlockHash;
 
 use bitcoin::secp256k1::key::PublicKey;
@@ -42,7 +40,7 @@ use bitcoin::secp256k1::key::PublicKey;
 use io;
 use prelude::*;
 use core::cell::RefCell;
-use std::rc::Rc;
+use alloc::rc::Rc;
 use sync::{Arc, Mutex};
 use core::mem;
 
@@ -125,19 +123,29 @@ pub fn connect_block<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, block: &Block)
        do_connect_block(node, block, false);
 }
 
+fn call_claimable_balances<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>) {
+       // Ensure `get_claimable_balances`' self-tests never panic
+       for funding_outpoint in node.chain_monitor.chain_monitor.list_monitors() {
+               node.chain_monitor.chain_monitor.get_monitor(funding_outpoint).unwrap().get_claimable_balances();
+       }
+}
+
 fn do_connect_block<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, block: &Block, skip_intermediaries: bool) {
+       call_claimable_balances(node);
        let height = node.best_block_info().1 + 1;
        if !skip_intermediaries {
                let txdata: Vec<_> = block.txdata.iter().enumerate().collect();
                match *node.connect_style.borrow() {
                        ConnectStyle::BestBlockFirst|ConnectStyle::BestBlockFirstSkippingBlocks => {
                                node.chain_monitor.chain_monitor.best_block_updated(&block.header, height);
+                               call_claimable_balances(node);
                                node.chain_monitor.chain_monitor.transactions_confirmed(&block.header, &txdata, height);
                                node.node.best_block_updated(&block.header, height);
                                node.node.transactions_confirmed(&block.header, &txdata, height);
                        },
                        ConnectStyle::TransactionsFirst|ConnectStyle::TransactionsFirstSkippingBlocks => {
                                node.chain_monitor.chain_monitor.transactions_confirmed(&block.header, &txdata, height);
+                               call_claimable_balances(node);
                                node.chain_monitor.chain_monitor.best_block_updated(&block.header, height);
                                node.node.transactions_confirmed(&block.header, &txdata, height);
                                node.node.best_block_updated(&block.header, height);
@@ -148,11 +156,13 @@ fn do_connect_block<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, block: &Block, s
                        }
                }
        }
+       call_claimable_balances(node);
        node.node.test_process_background_events();
        node.blocks.lock().unwrap().push((block.header, height));
 }
 
 pub fn disconnect_blocks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, count: u32) {
+       call_claimable_balances(node);
        for i in 0..count {
                let orig_header = node.blocks.lock().unwrap().pop().unwrap();
                assert!(orig_header.1 > 0); // Cannot disconnect genesis
@@ -174,6 +184,7 @@ pub fn disconnect_blocks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, count: u32)
                                node.node.best_block_updated(&prev_header.0, prev_header.1);
                        },
                }
+               call_claimable_balances(node);
        }
 }
 
@@ -233,7 +244,7 @@ impl<'a, 'b, 'c> Node<'a, 'b, 'c> {
 
 impl<'a, 'b, 'c> Drop for Node<'a, 'b, 'c> {
        fn drop(&mut self) {
-               if !::std::thread::panicking() {
+               if !panicking() {
                        // Check that we processed all pending events
                        assert!(self.node.get_and_clear_pending_msg_events().is_empty());
                        assert!(self.node.get_and_clear_pending_events().is_empty());
@@ -337,9 +348,12 @@ pub fn create_chan_between_nodes_with_value<'a, 'b, 'c, 'd>(node_a: &'a Node<'b,
        (announcement, as_update, bs_update, channel_id, tx)
 }
 
+#[macro_export]
+/// Gets an RAA and CS which were sent in response to a commitment update
 macro_rules! get_revoke_commit_msgs {
        ($node: expr, $node_id: expr) => {
                {
+                       use $crate::util::events::MessageSendEvent;
                        let events = $node.node.get_and_clear_pending_msg_events();
                        assert_eq!(events.len(), 2);
                        (match events[0] {
@@ -382,6 +396,26 @@ macro_rules! get_event_msg {
        }
 }
 
+/// Get an error message from the pending events queue.
+#[macro_export]
+macro_rules! get_err_msg {
+       ($node: expr, $node_id: expr) => {
+               {
+                       let events = $node.node.get_and_clear_pending_msg_events();
+                       assert_eq!(events.len(), 1);
+                       match events[0] {
+                               $crate::util::events::MessageSendEvent::HandleError {
+                                       action: $crate::ln::msgs::ErrorAction::SendErrorMessage { ref msg }, ref node_id
+                               } => {
+                                       assert_eq!(*node_id, $node_id);
+                                       (*msg).clone()
+                               },
+                               _ => panic!("Unexpected event"),
+                       }
+               }
+       }
+}
+
 /// Get a specific event from the pending events queue.
 #[macro_export]
 macro_rules! get_event {
@@ -400,14 +434,15 @@ macro_rules! get_event {
        }
 }
 
-#[cfg(test)]
+#[macro_export]
+/// Gets an UpdateHTLCs MessageSendEvent
 macro_rules! get_htlc_update_msgs {
        ($node: expr, $node_id: expr) => {
                {
                        let events = $node.node.get_and_clear_pending_msg_events();
                        assert_eq!(events.len(), 1);
                        match events[0] {
-                               MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
+                               $crate::util::events::MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
                                        assert_eq!(*node_id, $node_id);
                                        (*updates).clone()
                                },
@@ -438,6 +473,17 @@ macro_rules! get_feerate {
        }
 }
 
+#[cfg(test)]
+macro_rules! get_opt_anchors {
+       ($node: expr, $channel_id: expr) => {
+               {
+                       let mut lock;
+                       let chan = get_channel_ref!($node, lock, $channel_id);
+                       chan.opt_anchors()
+               }
+       }
+}
+
 /// Returns a channel monitor given a channel id, making some naive assumptions
 #[macro_export]
 macro_rules! get_monitor {
@@ -530,7 +576,7 @@ pub fn sign_funding_transaction<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &
        let (temporary_channel_id, tx, funding_output) = create_funding_transaction(node_a, channel_value, 42);
        assert_eq!(temporary_channel_id, expected_temporary_channel_id);
 
-       node_a.node.funding_transaction_generated(&temporary_channel_id, tx.clone()).unwrap();
+       assert!(node_a.node.funding_transaction_generated(&temporary_channel_id, tx.clone()).is_ok());
        check_added_monitors!(node_a, 0);
 
        let funding_created_msg = get_event_msg!(node_a, MessageSendEvent::SendFundingCreated, node_b.node.get_our_node_id());
@@ -558,6 +604,11 @@ pub fn sign_funding_transaction<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &
        assert_eq!(node_a.tx_broadcaster.txn_broadcasted.lock().unwrap()[0], tx);
        node_a.tx_broadcaster.txn_broadcasted.lock().unwrap().clear();
 
+       // Ensure that funding_transaction_generated is idempotent.
+       assert!(node_a.node.funding_transaction_generated(&temporary_channel_id, tx.clone()).is_err());
+       assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
+       check_added_monitors!(node_a, 0);
+
        tx
 }
 
@@ -582,7 +633,14 @@ pub fn create_chan_between_nodes_with_value_confirm_first<'a, 'b, 'c, 'd>(node_r
 pub fn create_chan_between_nodes_with_value_confirm_second<'a, 'b, 'c>(node_recv: &Node<'a, 'b, 'c>, node_conf: &Node<'a, 'b, 'c>) -> ((msgs::FundingLocked, msgs::AnnouncementSignatures), [u8; 32]) {
        let channel_id;
        let events_6 = node_conf.node.get_and_clear_pending_msg_events();
-       assert_eq!(events_6.len(), 2);
+       assert_eq!(events_6.len(), 3);
+       let announcement_sigs_idx = if let MessageSendEvent::SendChannelUpdate { ref node_id, msg: _ } = events_6[1] {
+               assert_eq!(*node_id, node_recv.node.get_our_node_id());
+               2
+       } else if let MessageSendEvent::SendChannelUpdate { ref node_id, msg: _ } = events_6[2] {
+               assert_eq!(*node_id, node_recv.node.get_our_node_id());
+               1
+       } else { panic!("Unexpected event: {:?}", events_6[1]); };
        ((match events_6[0] {
                MessageSendEvent::SendFundingLocked { ref node_id, ref msg } => {
                        channel_id = msg.channel_id.clone();
@@ -590,7 +648,7 @@ pub fn create_chan_between_nodes_with_value_confirm_second<'a, 'b, 'c>(node_recv
                        msg.clone()
                },
                _ => panic!("Unexpected event"),
-       }, match events_6[1] {
+       }, match events_6[announcement_sigs_idx] {
                MessageSendEvent::SendAnnouncementSignatures { ref node_id, ref msg } => {
                        assert_eq!(*node_id, node_recv.node.get_our_node_id());
                        msg.clone()
@@ -655,6 +713,61 @@ pub fn create_announced_chan_between_nodes_with_value<'a, 'b, 'c, 'd>(nodes: &'a
        (chan_announcement.1, chan_announcement.2, chan_announcement.3, chan_announcement.4)
 }
 
+pub fn create_unannounced_chan_between_nodes_with_value<'a, 'b, 'c, 'd>(nodes: &'a Vec<Node<'b, 'c, 'd>>, a: usize, b: usize, channel_value: u64, push_msat: u64, a_flags: InitFeatures, b_flags: InitFeatures) -> (msgs::FundingLocked, Transaction) {
+       let mut no_announce_cfg = test_default_channel_config();
+       no_announce_cfg.channel_options.announced_channel = false;
+       nodes[a].node.create_channel(nodes[b].node.get_our_node_id(), channel_value, push_msat, 42, Some(no_announce_cfg)).unwrap();
+       let open_channel = get_event_msg!(nodes[a], MessageSendEvent::SendOpenChannel, nodes[b].node.get_our_node_id());
+       nodes[b].node.handle_open_channel(&nodes[a].node.get_our_node_id(), a_flags, &open_channel);
+       let accept_channel = get_event_msg!(nodes[b], MessageSendEvent::SendAcceptChannel, nodes[a].node.get_our_node_id());
+       nodes[a].node.handle_accept_channel(&nodes[b].node.get_our_node_id(), b_flags, &accept_channel);
+
+       let (temporary_channel_id, tx, _) = create_funding_transaction(&nodes[a], channel_value, 42);
+       nodes[a].node.funding_transaction_generated(&temporary_channel_id, tx.clone()).unwrap();
+       nodes[b].node.handle_funding_created(&nodes[a].node.get_our_node_id(), &get_event_msg!(nodes[a], MessageSendEvent::SendFundingCreated, nodes[b].node.get_our_node_id()));
+       check_added_monitors!(nodes[b], 1);
+
+       let cs_funding_signed = get_event_msg!(nodes[b], MessageSendEvent::SendFundingSigned, nodes[a].node.get_our_node_id());
+       nodes[a].node.handle_funding_signed(&nodes[b].node.get_our_node_id(), &cs_funding_signed);
+       check_added_monitors!(nodes[a], 1);
+
+       let conf_height = core::cmp::max(nodes[a].best_block_info().1 + 1, nodes[b].best_block_info().1 + 1);
+       confirm_transaction_at(&nodes[a], &tx, conf_height);
+       connect_blocks(&nodes[a], CHAN_CONFIRM_DEPTH - 1);
+       confirm_transaction_at(&nodes[b], &tx, conf_height);
+       connect_blocks(&nodes[b], CHAN_CONFIRM_DEPTH - 1);
+       let as_funding_locked = get_event_msg!(nodes[a], MessageSendEvent::SendFundingLocked, nodes[b].node.get_our_node_id());
+       nodes[a].node.handle_funding_locked(&nodes[b].node.get_our_node_id(), &get_event_msg!(nodes[b], MessageSendEvent::SendFundingLocked, nodes[a].node.get_our_node_id()));
+       let as_update = get_event_msg!(nodes[a], MessageSendEvent::SendChannelUpdate, nodes[b].node.get_our_node_id());
+       nodes[b].node.handle_funding_locked(&nodes[a].node.get_our_node_id(), &as_funding_locked);
+       let bs_update = get_event_msg!(nodes[b], MessageSendEvent::SendChannelUpdate, nodes[a].node.get_our_node_id());
+
+       nodes[a].node.handle_channel_update(&nodes[b].node.get_our_node_id(), &bs_update);
+       nodes[b].node.handle_channel_update(&nodes[a].node.get_our_node_id(), &as_update);
+
+       let mut found_a = false;
+       for chan in nodes[a].node.list_usable_channels() {
+               if chan.channel_id == as_funding_locked.channel_id {
+                       assert!(!found_a);
+                       found_a = true;
+                       assert!(!chan.is_public);
+               }
+       }
+       assert!(found_a);
+
+       let mut found_b = false;
+       for chan in nodes[b].node.list_usable_channels() {
+               if chan.channel_id == as_funding_locked.channel_id {
+                       assert!(!found_b);
+                       found_b = true;
+                       assert!(!chan.is_public);
+               }
+       }
+       assert!(found_b);
+
+       (as_funding_locked, tx)
+}
+
 pub fn update_nodes_with_chan_announce<'a, 'b, 'c, 'd>(nodes: &'a Vec<Node<'b, 'c, 'd>>, a: usize, b: usize, ann: &msgs::ChannelAnnouncement, upd_1: &msgs::ChannelUpdate, upd_2: &msgs::ChannelUpdate) {
        nodes[a].node.broadcast_node_announcement([0, 0, 0], [0; 32], Vec::new());
        let a_events = nodes[a].node.get_and_clear_pending_msg_events();
@@ -710,9 +823,15 @@ pub fn update_nodes_with_chan_announce<'a, 'b, 'c, 'd>(nodes: &'a Vec<Node<'b, '
                node.net_graph_msg_handler.handle_channel_update(upd_2).unwrap();
                node.net_graph_msg_handler.handle_node_announcement(&a_node_announcement).unwrap();
                node.net_graph_msg_handler.handle_node_announcement(&b_node_announcement).unwrap();
+
+               // Note that channel_updates are also delivered to ChannelManagers to ensure we have
+               // forwarding info for local channels even if its not accepted in the network graph.
+               node.node.handle_channel_update(&nodes[a].node.get_our_node_id(), &upd_1);
+               node.node.handle_channel_update(&nodes[b].node.get_our_node_id(), &upd_2);
        }
 }
 
+#[macro_export]
 macro_rules! check_spends {
        ($tx: expr, $($spends_txn: expr),*) => {
                {
@@ -772,11 +891,30 @@ macro_rules! get_closing_signed_broadcast {
        }
 }
 
+#[cfg(test)]
+macro_rules! check_warn_msg {
+       ($node: expr, $recipient_node_id: expr, $chan_id: expr) => {{
+               let msg_events = $node.node.get_and_clear_pending_msg_events();
+               assert_eq!(msg_events.len(), 1);
+               match msg_events[0] {
+                       MessageSendEvent::HandleError { action: ErrorAction::SendWarningMessage { ref msg, log_level: _ }, node_id } => {
+                               assert_eq!(node_id, $recipient_node_id);
+                               assert_eq!(msg.channel_id, $chan_id);
+                               msg.data.clone()
+                       },
+                       _ => panic!("Unexpected event"),
+               }
+       }}
+}
+
 /// Check that a channel's closing channel update has been broadcasted, and optionally
 /// check whether an error message event has occurred.
 #[macro_export]
 macro_rules! check_closed_broadcast {
        ($node: expr, $with_error_msg: expr) => {{
+               use $crate::util::events::MessageSendEvent;
+               use $crate::ln::msgs::ErrorAction;
+
                let msg_events = $node.node.get_and_clear_pending_msg_events();
                assert_eq!(msg_events.len(), if $with_error_msg { 2 } else { 1 });
                match msg_events[0] {
@@ -804,6 +942,8 @@ macro_rules! check_closed_event {
                check_closed_event!($node, $events, $reason, false);
        };
        ($node: expr, $events: expr, $reason: expr, $is_check_discard_funding: expr) => {{
+               use $crate::util::events::Event;
+
                let events = $node.node.get_and_clear_pending_events();
                assert_eq!(events.len(), $events);
                let expected_reason = $reason;
@@ -921,6 +1061,9 @@ impl SendEvent {
        }
 }
 
+#[macro_export]
+/// Performs the "commitment signed dance" - the series of message exchanges which occur after a
+/// commitment update.
 macro_rules! commitment_signed_dance {
        ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr, true /* skip last step */) => {
                {
@@ -987,7 +1130,7 @@ macro_rules! commitment_signed_dance {
                {
                        commitment_signed_dance!($node_a, $node_b, $commitment_signed, $fail_backwards, true);
                        if $fail_backwards {
-                               expect_pending_htlcs_forwardable!($node_a);
+                               $crate::expect_pending_htlcs_forwardable!($node_a);
                                check_added_monitors!($node_a, 1);
 
                                let channel_state = $node_a.node.channel_state.lock().unwrap();
@@ -1012,10 +1155,12 @@ macro_rules! get_payment_preimage_hash {
        };
        ($dest_node: expr, $min_value_msat: expr) => {
                {
+                       use bitcoin::hashes::Hash as _;
                        let mut payment_count = $dest_node.network_payment_count.borrow_mut();
-                       let payment_preimage = PaymentPreimage([*payment_count; 32]);
+                       let payment_preimage = $crate::ln::PaymentPreimage([*payment_count; 32]);
                        *payment_count += 1;
-                       let payment_hash = PaymentHash(Sha256::hash(&payment_preimage.0[..]).into_inner());
+                       let payment_hash = $crate::ln::PaymentHash(
+                               bitcoin::hashes::sha256::Hash::hash(&payment_preimage.0[..]).into_inner());
                        let payment_secret = $dest_node.node.create_inbound_payment_for_hash(payment_hash, $min_value_msat, 7200).unwrap();
                        (payment_preimage, payment_hash, payment_secret)
                }
@@ -1023,39 +1168,49 @@ macro_rules! get_payment_preimage_hash {
 }
 
 #[cfg(test)]
+#[macro_export]
 macro_rules! get_route_and_payment_hash {
        ($send_node: expr, $recv_node: expr, $recv_value: expr) => {{
-               get_route_and_payment_hash!($send_node, $recv_node, vec![], $recv_value, TEST_FINAL_CLTV)
+               let payment_params = $crate::routing::router::PaymentParameters::from_node_id($recv_node.node.get_our_node_id())
+                       .with_features($crate::ln::features::InvoiceFeatures::known());
+               $crate::get_route_and_payment_hash!($send_node, $recv_node, payment_params, $recv_value, TEST_FINAL_CLTV)
        }};
-       ($send_node: expr, $recv_node: expr, $last_hops: expr, $recv_value: expr, $cltv: expr) => {{
-               let (payment_preimage, payment_hash, payment_secret) = get_payment_preimage_hash!($recv_node, Some($recv_value));
-               let payee = $crate::routing::router::Payee::from_node_id($recv_node.node.get_our_node_id())
-                       .with_features($crate::ln::features::InvoiceFeatures::known())
-                       .with_route_hints($last_hops);
-               let scorer = ::util::test_utils::TestScorer::with_fixed_penalty(0);
-               let route = ::routing::router::get_route(
-                       &$send_node.node.get_our_node_id(), &payee, $send_node.network_graph,
+       ($send_node: expr, $recv_node: expr, $payment_params: expr, $recv_value: expr, $cltv: expr) => {{
+               use $crate::chain::keysinterface::KeysInterface;
+               let (payment_preimage, payment_hash, payment_secret) = $crate::get_payment_preimage_hash!($recv_node, Some($recv_value));
+               let scorer = $crate::util::test_utils::TestScorer::with_penalty(0);
+               let keys_manager = $crate::util::test_utils::TestKeysInterface::new(&[0u8; 32], bitcoin::network::constants::Network::Testnet);
+               let random_seed_bytes = keys_manager.get_secure_random_bytes();
+               let route = $crate::routing::router::get_route(
+                       &$send_node.node.get_our_node_id(), &$payment_params, &$send_node.network_graph.read_only(),
                        Some(&$send_node.node.list_usable_channels().iter().collect::<Vec<_>>()),
-                       $recv_value, $cltv, $send_node.logger, &scorer
+                       $recv_value, $cltv, $send_node.logger, &scorer, &random_seed_bytes
                ).unwrap();
                (route, payment_hash, payment_preimage, payment_secret)
        }}
 }
 
+#[macro_export]
+/// Clears (and ignores) a PendingHTLCsForwardable event
 macro_rules! expect_pending_htlcs_forwardable_ignore {
        ($node: expr) => {{
                let events = $node.node.get_and_clear_pending_events();
                assert_eq!(events.len(), 1);
                match events[0] {
-                       Event::PendingHTLCsForwardable { .. } => { },
+                       $crate::util::events::Event::PendingHTLCsForwardable { .. } => { },
                        _ => panic!("Unexpected event"),
                };
        }}
 }
 
+#[macro_export]
+/// Handles a PendingHTLCsForwardable event
 macro_rules! expect_pending_htlcs_forwardable {
        ($node: expr) => {{
-               expect_pending_htlcs_forwardable_ignore!($node);
+               $crate::expect_pending_htlcs_forwardable_ignore!($node);
+               $node.node.process_pending_htlc_forwards();
+
+               // Ensure process_pending_htlc_forwards is idempotent.
                $node.node.process_pending_htlc_forwards();
        }}
 }
@@ -1070,22 +1225,29 @@ macro_rules! expect_pending_htlcs_forwardable_from_events {
                };
                if $ignore {
                        $node.node.process_pending_htlc_forwards();
+
+                       // Ensure process_pending_htlc_forwards is idempotent.
+                       $node.node.process_pending_htlc_forwards();
                }
        }}
 }
 
-#[cfg(any(test, feature = "unstable"))]
+#[macro_export]
+#[cfg(any(test, feature = "_bench_unstable", feature = "_test_utils"))]
 macro_rules! expect_payment_received {
        ($node: expr, $expected_payment_hash: expr, $expected_payment_secret: expr, $expected_recv_value: expr) => {
+               expect_payment_received!($node, $expected_payment_hash, $expected_payment_secret, $expected_recv_value, None)
+       };
+       ($node: expr, $expected_payment_hash: expr, $expected_payment_secret: expr, $expected_recv_value: expr, $expected_payment_preimage: expr) => {
                let events = $node.node.get_and_clear_pending_events();
                assert_eq!(events.len(), 1);
                match events[0] {
-                       Event::PaymentReceived { ref payment_hash, ref purpose, amt } => {
+                       $crate::util::events::Event::PaymentReceived { ref payment_hash, ref purpose, amt } => {
                                assert_eq!($expected_payment_hash, *payment_hash);
                                assert_eq!($expected_recv_value, amt);
                                match purpose {
-                                       PaymentPurpose::InvoicePayment { payment_preimage, payment_secret, .. } => {
-                                               assert!(payment_preimage.is_none());
+                                       $crate::util::events::PaymentPurpose::InvoicePayment { payment_preimage, payment_secret, .. } => {
+                                               assert_eq!(&$expected_payment_preimage, payment_preimage);
                                                assert_eq!($expected_payment_secret, *payment_secret);
                                        },
                                        _ => {},
@@ -1097,6 +1259,7 @@ macro_rules! expect_payment_received {
 }
 
 #[cfg(test)]
+#[macro_export]
 macro_rules! expect_payment_sent_without_paths {
        ($node: expr, $expected_payment_preimage: expr) => {
                expect_payment_sent!($node, $expected_payment_preimage, None::<u64>, false);
@@ -1106,23 +1269,26 @@ macro_rules! expect_payment_sent_without_paths {
        }
 }
 
+#[macro_export]
 macro_rules! expect_payment_sent {
        ($node: expr, $expected_payment_preimage: expr) => {
-               expect_payment_sent!($node, $expected_payment_preimage, None::<u64>, true);
+               $crate::expect_payment_sent!($node, $expected_payment_preimage, None::<u64>, true);
        };
        ($node: expr, $expected_payment_preimage: expr, $expected_fee_msat_opt: expr) => {
-               expect_payment_sent!($node, $expected_payment_preimage, $expected_fee_msat_opt, true);
+               $crate::expect_payment_sent!($node, $expected_payment_preimage, $expected_fee_msat_opt, true);
        };
-       ($node: expr, $expected_payment_preimage: expr, $expected_fee_msat_opt: expr, $expect_paths: expr) => {
+       ($node: expr, $expected_payment_preimage: expr, $expected_fee_msat_opt: expr, $expect_paths: expr) => { {
+               use bitcoin::hashes::Hash as _;
                let events = $node.node.get_and_clear_pending_events();
-               let expected_payment_hash = PaymentHash(Sha256::hash(&$expected_payment_preimage.0).into_inner());
+               let expected_payment_hash = $crate::ln::PaymentHash(
+                       bitcoin::hashes::sha256::Hash::hash(&$expected_payment_preimage.0).into_inner());
                if $expect_paths {
                        assert!(events.len() > 1);
                } else {
                        assert_eq!(events.len(), 1);
                }
                let expected_payment_id = match events[0] {
-                       Event::PaymentSent { ref payment_id, ref payment_preimage, ref payment_hash, ref fee_paid_msat } => {
+                       $crate::util::events::Event::PaymentSent { ref payment_id, ref payment_preimage, ref payment_hash, ref fee_paid_msat } => {
                                assert_eq!($expected_payment_preimage, *payment_preimage);
                                assert_eq!(expected_payment_hash, *payment_hash);
                                assert!(fee_paid_msat.is_some());
@@ -1136,7 +1302,7 @@ macro_rules! expect_payment_sent {
                if $expect_paths {
                        for i in 1..events.len() {
                                match events[i] {
-                                       Event::PaymentPathSuccessful { payment_id, payment_hash, .. } => {
+                                       $crate::util::events::Event::PaymentPathSuccessful { payment_id, payment_hash, .. } => {
                                                assert_eq!(payment_id, expected_payment_id);
                                                assert_eq!(payment_hash, Some(expected_payment_hash));
                                        },
@@ -1144,16 +1310,17 @@ macro_rules! expect_payment_sent {
                                }
                        }
                }
-       }
+       } }
 }
 
 #[cfg(test)]
+#[macro_export]
 macro_rules! expect_payment_path_successful {
        ($node: expr) => {
                let events = $node.node.get_and_clear_pending_events();
                assert_eq!(events.len(), 1);
                match events[0] {
-                       Event::PaymentPathSuccessful { .. } => {},
+                       $crate::util::events::Event::PaymentPathSuccessful { .. } => {},
                        _ => panic!("Unexpected event"),
                }
        }
@@ -1173,58 +1340,114 @@ macro_rules! expect_payment_forwarded {
        }
 }
 
+pub struct PaymentFailedConditions<'a> {
+       pub(crate) expected_htlc_error_data: Option<(u16, &'a [u8])>,
+       pub(crate) expected_blamed_scid: Option<u64>,
+       pub(crate) expected_blamed_chan_closed: Option<bool>,
+       pub(crate) expected_mpp_parts_remain: bool,
+}
+
+impl<'a> PaymentFailedConditions<'a> {
+       pub fn new() -> Self {
+               Self {
+                       expected_htlc_error_data: None,
+                       expected_blamed_scid: None,
+                       expected_blamed_chan_closed: None,
+                       expected_mpp_parts_remain: false,
+               }
+       }
+       pub fn mpp_parts_remain(mut self) -> Self {
+               self.expected_mpp_parts_remain = true;
+               self
+       }
+       pub fn blamed_scid(mut self, scid: u64) -> Self {
+               self.expected_blamed_scid = Some(scid);
+               self
+       }
+       pub fn blamed_chan_closed(mut self, closed: bool) -> Self {
+               self.expected_blamed_chan_closed = Some(closed);
+               self
+       }
+       pub fn expected_htlc_error_data(mut self, code: u16, data: &'a [u8]) -> Self {
+               self.expected_htlc_error_data = Some((code, data));
+               self
+       }
+}
+
 #[cfg(test)]
 macro_rules! expect_payment_failed_with_update {
        ($node: expr, $expected_payment_hash: expr, $rejected_by_dest: expr, $scid: expr, $chan_closed: expr) => {
-               let events = $node.node.get_and_clear_pending_events();
-               assert_eq!(events.len(), 1);
-               match events[0] {
-                       Event::PaymentPathFailed { ref payment_hash, rejected_by_dest, ref network_update, ref error_code, ref error_data, ref path, ref retry, .. } => {
-                               assert_eq!(*payment_hash, $expected_payment_hash, "unexpected payment_hash");
-                               assert_eq!(rejected_by_dest, $rejected_by_dest, "unexpected rejected_by_dest value");
-                               assert!(retry.is_some(), "expected retry.is_some()");
-                               assert_eq!(retry.as_ref().unwrap().final_value_msat, path.last().unwrap().fee_msat, "Retry amount should match last hop in path");
-                               assert_eq!(retry.as_ref().unwrap().payee.pubkey, path.last().unwrap().pubkey, "Retry payee node_id should match last hop in path");
-                               assert!(error_code.is_some(), "expected error_code.is_some() = true");
-                               assert!(error_data.is_some(), "expected error_data.is_some() = true");
-                               match network_update {
-                                       &Some(NetworkUpdate::ChannelUpdateMessage { ref msg }) if !$chan_closed => {
-                                               assert_eq!(msg.contents.short_channel_id, $scid);
-                                               assert_eq!(msg.contents.flags & 2, 0);
-                                       },
-                                       &Some(NetworkUpdate::ChannelClosed { short_channel_id, is_permanent }) if $chan_closed => {
-                                               assert_eq!(short_channel_id, $scid);
-                                               assert!(is_permanent);
-                                       },
-                                       Some(_) => panic!("Unexpected update type"),
-                                       None => panic!("Expected update"),
-                               }
-                       },
-                       _ => panic!("Unexpected event"),
-               }
+               expect_payment_failed_conditions!($node, $expected_payment_hash, $rejected_by_dest,
+                       $crate::ln::functional_test_utils::PaymentFailedConditions::new().blamed_scid($scid).blamed_chan_closed($chan_closed));
        }
 }
 
 #[cfg(test)]
 macro_rules! expect_payment_failed {
        ($node: expr, $expected_payment_hash: expr, $rejected_by_dest: expr $(, $expected_error_code: expr, $expected_error_data: expr)*) => {
+               #[allow(unused_mut)]
+               let mut conditions = $crate::ln::functional_test_utils::PaymentFailedConditions::new();
+               $(
+                       conditions = conditions.expected_htlc_error_data($expected_error_code, &$expected_error_data);
+               )*
+               expect_payment_failed_conditions!($node, $expected_payment_hash, $rejected_by_dest, conditions);
+       };
+}
+
+#[cfg(test)]
+macro_rules! expect_payment_failed_conditions {
+       ($node: expr, $expected_payment_hash: expr, $rejected_by_dest: expr, $conditions: expr) => {
                let events = $node.node.get_and_clear_pending_events();
                assert_eq!(events.len(), 1);
-               match events[0] {
-                       Event::PaymentPathFailed { ref payment_hash, rejected_by_dest, network_update: _, ref error_code, ref error_data, ref path, ref retry, .. } => {
+               let expected_payment_id = match events[0] {
+                       Event::PaymentPathFailed { ref payment_hash, rejected_by_dest, ref error_code, ref error_data, ref path, ref retry, ref payment_id, ref network_update, .. } => {
                                assert_eq!(*payment_hash, $expected_payment_hash, "unexpected payment_hash");
                                assert_eq!(rejected_by_dest, $rejected_by_dest, "unexpected rejected_by_dest value");
                                assert!(retry.is_some(), "expected retry.is_some()");
                                assert_eq!(retry.as_ref().unwrap().final_value_msat, path.last().unwrap().fee_msat, "Retry amount should match last hop in path");
-                               assert_eq!(retry.as_ref().unwrap().payee.pubkey, path.last().unwrap().pubkey, "Retry payee node_id should match last hop in path");
+                               assert_eq!(retry.as_ref().unwrap().payment_params.payee_pubkey, path.last().unwrap().pubkey, "Retry payee node_id should match last hop in path");
+
                                assert!(error_code.is_some(), "expected error_code.is_some() = true");
                                assert!(error_data.is_some(), "expected error_data.is_some() = true");
-                               $(
-                                       assert_eq!(error_code.unwrap(), $expected_error_code, "unexpected error code");
-                                       assert_eq!(&error_data.as_ref().unwrap()[..], $expected_error_data, "unexpected error data");
-                               )*
+                               if let Some((code, data)) = $conditions.expected_htlc_error_data {
+                                       assert_eq!(error_code.unwrap(), code, "unexpected error code");
+                                       assert_eq!(&error_data.as_ref().unwrap()[..], data, "unexpected error data");
+                               }
+
+                               if let Some(chan_closed) = $conditions.expected_blamed_chan_closed {
+                                       match network_update {
+                                               &Some($crate::routing::network_graph::NetworkUpdate::ChannelUpdateMessage { ref msg }) if !chan_closed => {
+                                                       if let Some(scid) = $conditions.expected_blamed_scid {
+                                                               assert_eq!(msg.contents.short_channel_id, scid);
+                                                       }
+                                                       assert_eq!(msg.contents.flags & 2, 0);
+                                               },
+                                               &Some($crate::routing::network_graph::NetworkUpdate::ChannelClosed { short_channel_id, is_permanent }) if chan_closed => {
+                                                       if let Some(scid) = $conditions.expected_blamed_scid {
+                                                               assert_eq!(short_channel_id, scid);
+                                                       }
+                                                       assert!(is_permanent);
+                                               },
+                                               Some(_) => panic!("Unexpected update type"),
+                                               None => panic!("Expected update"),
+                                       }
+                               }
+
+                               payment_id.unwrap()
                        },
                        _ => panic!("Unexpected event"),
+               };
+               if !$conditions.expected_mpp_parts_remain {
+                       $node.node.abandon_payment(expected_payment_id);
+                       let events = $node.node.get_and_clear_pending_events();
+                       assert_eq!(events.len(), 1);
+                       match events[0] {
+                               Event::PaymentFailed { ref payment_hash, ref payment_id } => {
+                                       assert_eq!(*payment_hash, $expected_payment_hash, "unexpected second payment_hash");
+                                       assert_eq!(*payment_id, expected_payment_id);
+                               }
+                               _ => panic!("Unexpected second event"),
+                       }
                }
        }
 }
@@ -1392,6 +1615,12 @@ pub fn do_claim_payment_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>,
                        last_update_fulfill_dance!(origin_node, expected_route.first().unwrap());
                }
        }
+
+       // Ensure that claim_funds is idempotent.
+       assert!(!expected_paths[0].last().unwrap().node.claim_funds(our_payment_preimage));
+       assert!(expected_paths[0].last().unwrap().node.get_and_clear_pending_msg_events().is_empty());
+       check_added_monitors!(expected_paths[0].last().unwrap(), 0);
+
        expected_total_fee_msat
 }
 pub fn claim_payment_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_paths: &[&[&Node<'a, 'b, 'c>]], skip_last: bool, our_payment_preimage: PaymentPreimage) {
@@ -1408,13 +1637,17 @@ pub fn claim_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route:
 pub const TEST_FINAL_CLTV: u32 = 70;
 
 pub fn route_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) -> (PaymentPreimage, PaymentHash, PaymentSecret) {
-       let payee = Payee::from_node_id(expected_route.last().unwrap().node.get_our_node_id())
+       let payment_params = PaymentParameters::from_node_id(expected_route.last().unwrap().node.get_our_node_id())
                .with_features(InvoiceFeatures::known());
-       let scorer = test_utils::TestScorer::with_fixed_penalty(0);
+       let network_graph = origin_node.network_graph.read_only();
+       let scorer = test_utils::TestScorer::with_penalty(0);
+       let seed = [0u8; 32];
+       let keys_manager = test_utils::TestKeysInterface::new(&seed, Network::Testnet);
+       let random_seed_bytes = keys_manager.get_secure_random_bytes();
        let route = get_route(
-               &origin_node.node.get_our_node_id(), &payee, &origin_node.network_graph,
+               &origin_node.node.get_our_node_id(), &payment_params, &network_graph,
                Some(&origin_node.node.list_usable_channels().iter().collect::<Vec<_>>()),
-               recv_value, TEST_FINAL_CLTV, origin_node.logger, &scorer).unwrap();
+               recv_value, TEST_FINAL_CLTV, origin_node.logger, &scorer, &random_seed_bytes).unwrap();
        assert_eq!(route.paths.len(), 1);
        assert_eq!(route.paths[0].len(), expected_route.len());
        for (node, hop) in expected_route.iter().zip(route.paths[0].iter()) {
@@ -1426,10 +1659,16 @@ pub fn route_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route:
 }
 
 pub fn route_over_limit<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64)  {
-       let payee = Payee::from_node_id(expected_route.last().unwrap().node.get_our_node_id())
+       let payment_params = PaymentParameters::from_node_id(expected_route.last().unwrap().node.get_our_node_id())
                .with_features(InvoiceFeatures::known());
-       let scorer = test_utils::TestScorer::with_fixed_penalty(0);
-       let route = get_route(&origin_node.node.get_our_node_id(), &payee, origin_node.network_graph, None, recv_value, TEST_FINAL_CLTV, origin_node.logger, &scorer).unwrap();
+       let network_graph = origin_node.network_graph.read_only();
+       let scorer = test_utils::TestScorer::with_penalty(0);
+       let seed = [0u8; 32];
+       let keys_manager = test_utils::TestKeysInterface::new(&seed, Network::Testnet);
+       let random_seed_bytes = keys_manager.get_secure_random_bytes();
+       let route = get_route(
+               &origin_node.node.get_our_node_id(), &payment_params, &network_graph,
+               None, recv_value, TEST_FINAL_CLTV, origin_node.logger, &scorer, &random_seed_bytes).unwrap();
        assert_eq!(route.paths.len(), 1);
        assert_eq!(route.paths[0].len(), expected_route.len());
        for (node, hop) in expected_route.iter().zip(route.paths[0].iter()) {
@@ -1523,19 +1762,38 @@ pub fn fail_payment_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expe
                        commitment_signed_dance!(origin_node, prev_node, next_msgs.as_ref().unwrap().1, false);
                        let events = origin_node.node.get_and_clear_pending_events();
                        assert_eq!(events.len(), 1);
-                       match events[0] {
-                               Event::PaymentPathFailed { payment_hash, rejected_by_dest, all_paths_failed, ref path, .. } => {
+                       let expected_payment_id = match events[0] {
+                               Event::PaymentPathFailed { payment_hash, rejected_by_dest, all_paths_failed, ref path, ref payment_id, .. } => {
                                        assert_eq!(payment_hash, our_payment_hash);
                                        assert!(rejected_by_dest);
                                        assert_eq!(all_paths_failed, i == expected_paths.len() - 1);
                                        for (idx, hop) in expected_route.iter().enumerate() {
                                                assert_eq!(hop.node.get_our_node_id(), path[idx].pubkey);
                                        }
+                                       payment_id.unwrap()
                                },
                                _ => panic!("Unexpected event"),
+                       };
+                       if i == expected_paths.len() - 1 {
+                               origin_node.node.abandon_payment(expected_payment_id);
+                               let events = origin_node.node.get_and_clear_pending_events();
+                               assert_eq!(events.len(), 1);
+                               match events[0] {
+                                       Event::PaymentFailed { ref payment_hash, ref payment_id } => {
+                                               assert_eq!(*payment_hash, our_payment_hash, "unexpected second payment_hash");
+                                               assert_eq!(*payment_id, expected_payment_id);
+                                       }
+                                       _ => panic!("Unexpected second event"),
+                               }
                        }
                }
        }
+
+       // Ensure that fail_htlc_backwards is idempotent.
+       assert!(!expected_paths[0].last().unwrap().node.fail_htlc_backwards(&our_payment_hash));
+       assert!(expected_paths[0].last().unwrap().node.get_and_clear_pending_events().is_empty());
+       assert!(expected_paths[0].last().unwrap().node.get_and_clear_pending_msg_events().is_empty());
+       check_added_monitors!(expected_paths[0].last().unwrap(), 0);
 }
 
 pub fn fail_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_path: &[&Node<'a, 'b, 'c>], our_payment_hash: PaymentHash)  {
@@ -1589,7 +1847,7 @@ pub fn test_default_channel_config() -> UserConfig {
        let mut default_config = UserConfig::default();
        // Set cltv_expiry_delta slightly lower to keep the final CLTV values inside one byte in our
        // tests so that our script-length checks don't fail (see ACCEPTED_HTLC_SCRIPT_WEIGHT).
-       default_config.channel_options.cltv_expiry_delta = 6*6;
+       default_config.channel_options.cltv_expiry_delta = MIN_CLTV_EXPIRY_DELTA;
        default_config.channel_options.announced_channel = true;
        default_config.peer_channel_config_limits.force_announced_channel_preference = false;
        // When most of our tests were written, the default HTLC minimum was fixed at 1000.
@@ -1638,8 +1896,8 @@ pub fn create_network<'a, 'b: 'a, 'c: 'b>(node_count: usize, cfgs: &'b Vec<NodeC
 
        for i in 0..node_count {
                for j in (i+1)..node_count {
-                       nodes[i].node.peer_connected(&nodes[j].node.get_our_node_id(), &msgs::Init { features: cfgs[j].features.clone() });
-                       nodes[j].node.peer_connected(&nodes[i].node.get_our_node_id(), &msgs::Init { features: cfgs[i].features.clone() });
+                       nodes[i].node.peer_connected(&nodes[j].node.get_our_node_id(), &msgs::Init { features: cfgs[j].features.clone(), remote_network_address: None });
+                       nodes[j].node.peer_connected(&nodes[i].node.get_our_node_id(), &msgs::Init { features: cfgs[i].features.clone(), remote_network_address: None });
                }
        }
 
@@ -1858,8 +2116,7 @@ macro_rules! handle_chan_reestablish_msgs {
                                                idx += 1;
                                                RAACommitmentOrder::CommitmentFirst
                                        },
-                                       &MessageSendEvent::SendChannelUpdate { .. } => RAACommitmentOrder::CommitmentFirst,
-                                       _ => panic!("Unexpected event"),
+                                       _ => RAACommitmentOrder::CommitmentFirst,
                                }
                        } else {
                                RAACommitmentOrder::CommitmentFirst
@@ -1879,16 +2136,18 @@ macro_rules! handle_chan_reestablish_msgs {
                                                commitment_update = Some(updates.clone());
                                                idx += 1;
                                        },
-                                       &MessageSendEvent::SendChannelUpdate { .. } => {},
-                                       _ => panic!("Unexpected event"),
+                                       _ => {},
                                }
                        }
 
                        if let Some(&MessageSendEvent::SendChannelUpdate { ref node_id, ref msg }) = msg_events.get(idx) {
                                assert_eq!(*node_id, $dst_node.node.get_our_node_id());
+                               idx += 1;
                                assert_eq!(msg.contents.flags & 2, 0); // "disabled" flag must not be set as we just reconnected.
                        }
 
+                       assert_eq!(msg_events.len(), idx);
+
                        (funding_locked, revoke_and_ack, commitment_update, order)
                }
        }
@@ -1897,9 +2156,9 @@ macro_rules! handle_chan_reestablish_msgs {
 /// pending_htlc_adds includes both the holding cell and in-flight update_add_htlcs, whereas
 /// for claims/fails they are separated out.
 pub fn reconnect_nodes<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a, 'b, 'c>, send_funding_locked: (bool, bool), pending_htlc_adds: (i64, i64), pending_htlc_claims: (usize, usize), pending_htlc_fails: (usize, usize), pending_cell_htlc_claims: (usize, usize), pending_cell_htlc_fails: (usize, usize), pending_raa: (bool, bool))  {
-       node_a.node.peer_connected(&node_b.node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
+       node_a.node.peer_connected(&node_b.node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty(), remote_network_address: None });
        let reestablish_1 = get_chan_reestablish_msgs!(node_a, node_b);
-       node_b.node.peer_connected(&node_a.node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
+       node_b.node.peer_connected(&node_a.node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty(), remote_network_address: None });
        let reestablish_2 = get_chan_reestablish_msgs!(node_b, node_a);
 
        if send_funding_locked.0 {
@@ -1961,9 +2220,9 @@ pub fn reconnect_nodes<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a,
                        let announcement_event = node_a.node.get_and_clear_pending_msg_events();
                        if !announcement_event.is_empty() {
                                assert_eq!(announcement_event.len(), 1);
-                               if let MessageSendEvent::SendAnnouncementSignatures { .. } = announcement_event[0] {
+                               if let MessageSendEvent::SendChannelUpdate { .. } = announcement_event[0] {
                                        //TODO: Test announcement_sigs re-sending
-                               } else { panic!("Unexpected event!"); }
+                               } else { panic!("Unexpected event! {:?}", announcement_event[0]); }
                        }
                } else {
                        assert!(chan_msgs.0.is_none());
@@ -2018,9 +2277,11 @@ pub fn reconnect_nodes<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a,
                        let announcement_event = node_b.node.get_and_clear_pending_msg_events();
                        if !announcement_event.is_empty() {
                                assert_eq!(announcement_event.len(), 1);
-                               if let MessageSendEvent::SendAnnouncementSignatures { .. } = announcement_event[0] {
-                                       //TODO: Test announcement_sigs re-sending
-                               } else { panic!("Unexpected event!"); }
+                               match announcement_event[0] {
+                                       MessageSendEvent::SendChannelUpdate { .. } => {},
+                                       MessageSendEvent::SendAnnouncementSignatures { .. } => {},
+                                       _ => panic!("Unexpected event {:?}!", announcement_event[0]),
+                               }
                        }
                } else {
                        assert!(chan_msgs.0.is_none());