Add an `UnrecoverableError` variant to `ChannelMonitorUpdateStatus`
[rust-lightning] / lightning / src / ln / functional_test_utils.rs
index 64bd679a94f89cdf32402a2681166028fce44ca7..5a1a21e2999863b9f6af7b75da6c467b4228e7f3 100644 (file)
 //! A bunch of useful utilities for building networks of nodes and exchanging messages between
 //! nodes for functional tests.
 
-use crate::chain::{BestBlock, ChannelMonitorUpdateStatus, Confirm, Listen, Watch};
+use crate::chain::{BestBlock, ChannelMonitorUpdateStatus, Confirm, Listen, Watch, chainmonitor::Persist};
 use crate::sign::EntropySource;
 use crate::chain::channelmonitor::ChannelMonitor;
 use crate::chain::transaction::OutPoint;
-use crate::events::{ClosureReason, Event, HTLCDestination, MessageSendEvent, MessageSendEventsProvider, PathFailure, PaymentPurpose, PaymentFailureReason};
-use crate::ln::{PaymentPreimage, PaymentHash, PaymentSecret};
+use crate::events::{ClaimedHTLC, ClosureReason, Event, HTLCDestination, MessageSendEvent, MessageSendEventsProvider, PathFailure, PaymentPurpose, PaymentFailureReason};
+use crate::events::bump_transaction::{BumpTransactionEventHandler, Wallet, WalletSource};
+use crate::ln::{ChannelId, PaymentPreimage, PaymentHash, PaymentSecret};
 use crate::ln::channelmanager::{AChannelManager, ChainParameters, ChannelManager, ChannelManagerReadArgs, RAACommitmentOrder, PaymentSendFailure, RecipientOnionFields, PaymentId, MIN_CLTV_EXPIRY_DELTA};
 use crate::routing::gossip::{P2PGossipSync, NetworkGraph, NetworkUpdate};
-use crate::routing::router::{self, PaymentParameters, Route};
+use crate::routing::router::{self, PaymentParameters, Route, RouteParameters};
 use crate::ln::features::InitFeatures;
 use crate::ln::msgs;
 use crate::ln::msgs::{ChannelMessageHandler,RoutingMessageHandler};
-use crate::util::enforcing_trait_impls::EnforcingSigner;
+use crate::util::test_channel_signer::TestChannelSigner;
 use crate::util::scid_utils;
 use crate::util::test_utils;
 use crate::util::test_utils::{panicking, TestChainMonitor, TestScorer, TestKeysInterface};
 use crate::util::errors::APIError;
-use crate::util::config::UserConfig;
+use crate::util::config::{UserConfig, MaxDustHTLCExposure};
 use crate::util::ser::{ReadableArgs, Writeable};
 
 use bitcoin::blockdata::block::{Block, BlockHeader};
 use bitcoin::blockdata::transaction::{Transaction, TxOut};
-use bitcoin::network::constants::Network;
-
 use bitcoin::hash_types::BlockHash;
 use bitcoin::hashes::sha256::Hash as Sha256;
 use bitcoin::hashes::Hash as _;
-
-use bitcoin::secp256k1::PublicKey;
+use bitcoin::network::constants::Network;
+use bitcoin::secp256k1::{PublicKey, SecretKey};
 
 use crate::io;
 use crate::prelude::*;
 use core::cell::RefCell;
 use alloc::rc::Rc;
-use crate::sync::{Arc, Mutex, LockTestExt};
+use crate::sync::{Arc, Mutex, LockTestExt, RwLock};
 use core::mem;
 use core::iter::repeat;
-use bitcoin::{PackedLockTime, TxMerkleNode};
+use bitcoin::{PackedLockTime, TxIn, TxMerkleNode};
 
 pub const CHAN_CONFIRM_DEPTH: u32 = 10;
 
@@ -74,6 +73,20 @@ pub fn mine_transactions<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, txn: &[&Tra
        let height = node.best_block_info().1 + 1;
        confirm_transactions_at(node, txn, height);
 }
+/// Mine a single block containing the given transaction without extra consistency checks which may
+/// impact ChannelManager state.
+pub fn mine_transaction_without_consistency_checks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, tx: &Transaction) {
+       let height = node.best_block_info().1 + 1;
+       let mut block = Block {
+               header: BlockHeader { version: 0x20000000, prev_blockhash: node.best_block_hash(), merkle_root: TxMerkleNode::all_zeros(), time: height, bits: 42, nonce: 42 },
+               txdata: Vec::new(),
+       };
+       for _ in 0..*node.network_chan_count.borrow() { // Make sure we don't end up with channels at the same short id by offsetting by chan_count
+               block.txdata.push(Transaction { version: 0, lock_time: PackedLockTime::ZERO, input: Vec::new(), output: Vec::new() });
+       }
+       block.txdata.push((*tx).clone());
+       do_connect_block_without_consistency_checks(node, block, false);
+}
 /// Mine the given transaction at the given height, mining blocks as required to build to that
 /// height
 ///
@@ -212,16 +225,16 @@ pub fn connect_blocks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, depth: u32) ->
        assert!(depth >= 1);
        for i in 1..depth {
                let prev_blockhash = block.header.block_hash();
-               do_connect_block(node, block, skip_intermediaries);
+               do_connect_block_with_consistency_checks(node, block, skip_intermediaries);
                block = create_dummy_block(prev_blockhash, height + i, Vec::new());
        }
        let hash = block.header.block_hash();
-       do_connect_block(node, block, false);
+       do_connect_block_with_consistency_checks(node, block, false);
        hash
 }
 
 pub fn connect_block<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, block: &Block) {
-       do_connect_block(node, block.clone(), false);
+       do_connect_block_with_consistency_checks(node, block.clone(), false);
 }
 
 fn call_claimable_balances<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>) {
@@ -231,8 +244,14 @@ fn call_claimable_balances<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>) {
        }
 }
 
-fn do_connect_block<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, block: Block, skip_intermediaries: bool) {
+fn do_connect_block_with_consistency_checks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, block: Block, skip_intermediaries: bool) {
+       call_claimable_balances(node);
+       do_connect_block_without_consistency_checks(node, block, skip_intermediaries);
        call_claimable_balances(node);
+       node.node.test_process_background_events();
+}
+
+fn do_connect_block_without_consistency_checks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, block: Block, skip_intermediaries: bool) {
        let height = node.best_block_info().1 + 1;
        #[cfg(feature = "std")] {
                eprintln!("Connecting block using Block Connection Style: {:?}", *node.connect_style.borrow());
@@ -287,8 +306,19 @@ fn do_connect_block<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, block: Block, sk
                        }
                }
        }
-       call_claimable_balances(node);
-       node.node.test_process_background_events();
+
+       for tx in &block.txdata {
+               for input in &tx.input {
+                       node.wallet_source.remove_utxo(input.previous_output);
+               }
+               let wallet_script = node.wallet_source.get_change_script().unwrap();
+               for (idx, output) in tx.output.iter().enumerate() {
+                       if output.script_pubkey == wallet_script {
+                               let outpoint = bitcoin::OutPoint { txid: tx.txid(), vout: idx as u32 };
+                               node.wallet_source.add_utxo(outpoint, output.value);
+                       }
+               }
+       }
 }
 
 pub fn disconnect_blocks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, count: u32) {
@@ -340,7 +370,7 @@ pub struct TestChanMonCfg {
        pub persister: test_utils::TestPersister,
        pub logger: test_utils::TestLogger,
        pub keys_manager: test_utils::TestKeysInterface,
-       pub scorer: Mutex<test_utils::TestScorer>,
+       pub scorer: RwLock<test_utils::TestScorer>,
 }
 
 pub struct NodeCfg<'a> {
@@ -356,26 +386,46 @@ pub struct NodeCfg<'a> {
        pub override_init_features: Rc<RefCell<Option<InitFeatures>>>,
 }
 
-type TestChannelManager<'a, 'b, 'c> = ChannelManager<&'b TestChainMonitor<'c>, &'c test_utils::TestBroadcaster, &'b test_utils::TestKeysInterface, &'b test_utils::TestKeysInterface, &'b test_utils::TestKeysInterface, &'c test_utils::TestFeeEstimator, &'b test_utils::TestRouter<'c>, &'c test_utils::TestLogger>;
-
-pub struct Node<'a, 'b: 'a, 'c: 'b> {
-       pub chain_source: &'c test_utils::TestChainSource,
-       pub tx_broadcaster: &'c test_utils::TestBroadcaster,
-       pub fee_estimator: &'c test_utils::TestFeeEstimator,
-       pub router: &'b test_utils::TestRouter<'c>,
-       pub chain_monitor: &'b test_utils::TestChainMonitor<'c>,
-       pub keys_manager: &'b test_utils::TestKeysInterface,
-       pub node: &'a TestChannelManager<'a, 'b, 'c>,
-       pub network_graph: &'a NetworkGraph<&'c test_utils::TestLogger>,
-       pub gossip_sync: P2PGossipSync<&'b NetworkGraph<&'c test_utils::TestLogger>, &'c test_utils::TestChainSource, &'c test_utils::TestLogger>,
+type TestChannelManager<'node_cfg, 'chan_mon_cfg> = ChannelManager<
+       &'node_cfg TestChainMonitor<'chan_mon_cfg>,
+       &'chan_mon_cfg test_utils::TestBroadcaster,
+       &'node_cfg test_utils::TestKeysInterface,
+       &'node_cfg test_utils::TestKeysInterface,
+       &'node_cfg test_utils::TestKeysInterface,
+       &'chan_mon_cfg test_utils::TestFeeEstimator,
+       &'node_cfg test_utils::TestRouter<'chan_mon_cfg>,
+       &'chan_mon_cfg test_utils::TestLogger,
+>;
+
+pub struct Node<'chan_man, 'node_cfg: 'chan_man, 'chan_mon_cfg: 'node_cfg> {
+       pub chain_source: &'chan_mon_cfg test_utils::TestChainSource,
+       pub tx_broadcaster: &'chan_mon_cfg test_utils::TestBroadcaster,
+       pub fee_estimator: &'chan_mon_cfg test_utils::TestFeeEstimator,
+       pub router: &'node_cfg test_utils::TestRouter<'chan_mon_cfg>,
+       pub chain_monitor: &'node_cfg test_utils::TestChainMonitor<'chan_mon_cfg>,
+       pub keys_manager: &'chan_mon_cfg test_utils::TestKeysInterface,
+       pub node: &'chan_man TestChannelManager<'node_cfg, 'chan_mon_cfg>,
+       pub network_graph: &'node_cfg NetworkGraph<&'chan_mon_cfg test_utils::TestLogger>,
+       pub gossip_sync: P2PGossipSync<&'node_cfg NetworkGraph<&'chan_mon_cfg test_utils::TestLogger>, &'chan_mon_cfg test_utils::TestChainSource, &'chan_mon_cfg test_utils::TestLogger>,
        pub node_seed: [u8; 32],
        pub network_payment_count: Rc<RefCell<u8>>,
        pub network_chan_count: Rc<RefCell<u32>>,
-       pub logger: &'c test_utils::TestLogger,
+       pub logger: &'chan_mon_cfg test_utils::TestLogger,
        pub blocks: Arc<Mutex<Vec<(Block, u32)>>>,
        pub connect_style: Rc<RefCell<ConnectStyle>>,
        pub override_init_features: Rc<RefCell<Option<InitFeatures>>>,
-}
+       pub wallet_source: Arc<test_utils::TestWalletSource>,
+       pub bump_tx_handler: BumpTransactionEventHandler<
+               &'chan_mon_cfg test_utils::TestBroadcaster,
+               Arc<Wallet<Arc<test_utils::TestWalletSource>, &'chan_mon_cfg test_utils::TestLogger>>,
+               &'chan_mon_cfg test_utils::TestKeysInterface,
+               &'chan_mon_cfg test_utils::TestLogger,
+       >,
+}
+#[cfg(feature = "std")]
+impl<'a, 'b, 'c> std::panic::UnwindSafe for Node<'a, 'b, 'c> {}
+#[cfg(feature = "std")]
+impl<'a, 'b, 'c> std::panic::RefUnwindSafe for Node<'a, 'b, 'c> {}
 impl<'a, 'b, 'c> Node<'a, 'b, 'c> {
        pub fn best_block_hash(&self) -> BlockHash {
                self.blocks.lock().unwrap().last().unwrap().0.block_hash()
@@ -429,8 +479,8 @@ impl<H: NodeHolder> NodeHolder for &H {
        fn chain_monitor(&self) -> Option<&test_utils::TestChainMonitor> { (*self).chain_monitor() }
 }
 impl<'a, 'b: 'a, 'c: 'b> NodeHolder for Node<'a, 'b, 'c> {
-       type CM = TestChannelManager<'a, 'b, 'c>;
-       fn node(&self) -> &TestChannelManager<'a, 'b, 'c> { &self.node }
+       type CM = TestChannelManager<'b, 'c>;
+       fn node(&self) -> &TestChannelManager<'b, 'c> { &self.node }
        fn chain_monitor(&self) -> Option<&test_utils::TestChainMonitor> { Some(self.chain_monitor) }
 }
 
@@ -492,7 +542,7 @@ impl<'a, 'b, 'c> Drop for Node<'a, 'b, 'c> {
                                for outpoint in self.chain_monitor.chain_monitor.list_monitors() {
                                        let mut w = test_utils::TestVecWriter(Vec::new());
                                        self.chain_monitor.chain_monitor.get_monitor(outpoint).unwrap().write(&mut w).unwrap();
-                                       let (_, deserialized_monitor) = <(BlockHash, ChannelMonitor<EnforcingSigner>)>::read(
+                                       let (_, deserialized_monitor) = <(BlockHash, ChannelMonitor<TestChannelSigner>)>::read(
                                                &mut io::Cursor::new(&w.0), (self.keys_manager, self.keys_manager)).unwrap();
                                        deserialized_monitors.push(deserialized_monitor);
                                }
@@ -511,7 +561,7 @@ impl<'a, 'b, 'c> Drop for Node<'a, 'b, 'c> {
                                        channel_monitors.insert(monitor.get_funding_txo().0, monitor);
                                }
 
-                               let scorer = Mutex::new(test_utils::TestScorer::new());
+                               let scorer = RwLock::new(test_utils::TestScorer::new());
                                let mut w = test_utils::TestVecWriter(Vec::new());
                                self.node.write(&mut w).unwrap();
                                <(BlockHash, ChannelManager<&test_utils::TestChainMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestKeysInterface, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestRouter, &test_utils::TestLogger>)>::read(&mut io::Cursor::new(w.0), ChannelManagerReadArgs {
@@ -532,7 +582,7 @@ impl<'a, 'b, 'c> Drop for Node<'a, 'b, 'c> {
                        let chain_source = test_utils::TestChainSource::new(Network::Testnet);
                        let chain_monitor = test_utils::TestChainMonitor::new(Some(&chain_source), &broadcaster, &self.logger, &feeest, &persister, &self.keys_manager);
                        for deserialized_monitor in deserialized_monitors.drain(..) {
-                               if chain_monitor.watch_channel(deserialized_monitor.get_funding_txo().0, deserialized_monitor) != ChannelMonitorUpdateStatus::Completed {
+                               if chain_monitor.watch_channel(deserialized_monitor.get_funding_txo().0, deserialized_monitor) != Ok(ChannelMonitorUpdateStatus::Completed) {
                                        panic!();
                                }
                        }
@@ -542,11 +592,11 @@ impl<'a, 'b, 'c> Drop for Node<'a, 'b, 'c> {
        }
 }
 
-pub fn create_chan_between_nodes<'a, 'b, 'c, 'd>(node_a: &'a Node<'b, 'c, 'd>, node_b: &'a Node<'b, 'c, 'd>) -> (msgs::ChannelAnnouncement, msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
+pub fn create_chan_between_nodes<'a, 'b, 'c: 'd, 'd>(node_a: &'a Node<'b, 'c, 'd>, node_b: &'a Node<'b, 'c, 'd>) -> (msgs::ChannelAnnouncement, msgs::ChannelUpdate, msgs::ChannelUpdate, ChannelId, Transaction) {
        create_chan_between_nodes_with_value(node_a, node_b, 100000, 10001)
 }
 
-pub fn create_chan_between_nodes_with_value<'a, 'b, 'c, 'd>(node_a: &'a Node<'b, 'c, 'd>, node_b: &'a Node<'b, 'c, 'd>, channel_value: u64, push_msat: u64) -> (msgs::ChannelAnnouncement, msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
+pub fn create_chan_between_nodes_with_value<'a, 'b, 'c: 'd, 'd>(node_a: &'a Node<'b, 'c, 'd>, node_b: &'a Node<'b, 'c, 'd>, channel_value: u64, push_msat: u64) -> (msgs::ChannelAnnouncement, msgs::ChannelUpdate, msgs::ChannelUpdate, ChannelId, Transaction) {
        let (channel_ready, channel_id, tx) = create_chan_between_nodes_with_value_a(node_a, node_b, channel_value, push_msat);
        let (announcement, as_update, bs_update) = create_chan_between_nodes_with_value_b(node_a, node_b, &channel_ready);
        (announcement, as_update, bs_update, channel_id, tx)
@@ -783,36 +833,14 @@ macro_rules! get_channel_ref {
        }
 }
 
-#[cfg(test)]
-macro_rules! get_outbound_v1_channel_ref {
-       ($node: expr, $counterparty_node: expr, $per_peer_state_lock: ident, $peer_state_lock: ident, $channel_id: expr) => {
-               {
-                       $per_peer_state_lock = $node.node.per_peer_state.read().unwrap();
-                       $peer_state_lock = $per_peer_state_lock.get(&$counterparty_node.node.get_our_node_id()).unwrap().lock().unwrap();
-                       $peer_state_lock.outbound_v1_channel_by_id.get_mut(&$channel_id).unwrap()
-               }
-       }
-}
-
-#[cfg(test)]
-macro_rules! get_inbound_v1_channel_ref {
-       ($node: expr, $counterparty_node: expr, $per_peer_state_lock: ident, $peer_state_lock: ident, $channel_id: expr) => {
-               {
-                       $per_peer_state_lock = $node.node.per_peer_state.read().unwrap();
-                       $peer_state_lock = $per_peer_state_lock.get(&$counterparty_node.node.get_our_node_id()).unwrap().lock().unwrap();
-                       $peer_state_lock.inbound_v1_channel_by_id.get_mut(&$channel_id).unwrap()
-               }
-       }
-}
-
 #[cfg(test)]
 macro_rules! get_feerate {
        ($node: expr, $counterparty_node: expr, $channel_id: expr) => {
                {
                        let mut per_peer_state_lock;
                        let mut peer_state_lock;
-                       let chan = get_channel_ref!($node, $counterparty_node, per_peer_state_lock, peer_state_lock, $channel_id);
-                       chan.context.get_feerate_sat_per_1000_weight()
+                       let phase = get_channel_ref!($node, $counterparty_node, per_peer_state_lock, peer_state_lock, $channel_id);
+                       phase.context().get_feerate_sat_per_1000_weight()
                }
        }
 }
@@ -824,7 +852,7 @@ macro_rules! get_channel_type_features {
                        let mut per_peer_state_lock;
                        let mut peer_state_lock;
                        let chan = get_channel_ref!($node, $counterparty_node, per_peer_state_lock, peer_state_lock, $channel_id);
-                       chan.context.get_channel_type().clone()
+                       chan.context().get_channel_type().clone()
                }
        }
 }
@@ -840,7 +868,7 @@ macro_rules! get_monitor {
                        for index in 0..2 {
                                if let Ok(mon) = $node.chain_monitor.chain_monitor.get_monitor(
                                        $crate::chain::transaction::OutPoint {
-                                               txid: bitcoin::Txid::from_slice(&$channel_id[..]).unwrap(), index
+                                               txid: bitcoin::Txid::from_slice(&$channel_id.0[..]).unwrap(), index
                                        })
                                {
                                        monitor = Some(mon);
@@ -905,11 +933,26 @@ macro_rules! check_added_monitors {
        }
 }
 
-pub fn _reload_node<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, default_config: UserConfig, chanman_encoded: &[u8], monitors_encoded: &[&[u8]]) -> ChannelManager<&'b TestChainMonitor<'c>, &'c test_utils::TestBroadcaster, &'b test_utils::TestKeysInterface, &'b test_utils::TestKeysInterface, &'b test_utils::TestKeysInterface, &'c test_utils::TestFeeEstimator, &'b test_utils::TestRouter<'c>, &'c test_utils::TestLogger> {
+/// Checks whether the claimed HTLC for the specified path has the correct channel information.
+///
+/// This will panic if the path is empty, if the HTLC's channel ID is not actually a channel that
+/// connects the final two nodes in the path, or if the `user_channel_id` is incorrect.
+pub fn check_claimed_htlc_channel<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, path: &[&Node<'a, 'b, 'c>], htlc: &ClaimedHTLC) {
+       let mut nodes = path.iter().rev();
+       let dest = nodes.next().expect("path should have a destination").node;
+       let prev = nodes.next().unwrap_or(&origin_node).node;
+       let dest_channels = dest.list_channels();
+       let ch = dest_channels.iter().find(|ch| ch.channel_id == htlc.channel_id)
+               .expect("HTLC's channel should be one of destination node's channels");
+       assert_eq!(htlc.user_channel_id, ch.user_channel_id);
+       assert_eq!(ch.counterparty.node_id, prev.get_our_node_id());
+}
+
+pub fn _reload_node<'a, 'b, 'c>(node: &'a Node<'a, 'b, 'c>, default_config: UserConfig, chanman_encoded: &[u8], monitors_encoded: &[&[u8]]) -> TestChannelManager<'b, 'c> {
        let mut monitors_read = Vec::with_capacity(monitors_encoded.len());
        for encoded in monitors_encoded {
                let mut monitor_read = &encoded[..];
-               let (_, monitor) = <(BlockHash, ChannelMonitor<EnforcingSigner>)>
+               let (_, monitor) = <(BlockHash, ChannelMonitor<TestChannelSigner>)>
                        ::read(&mut monitor_read, (node.keys_manager, node.keys_manager)).unwrap();
                assert!(monitor_read.is_empty());
                monitors_read.push(monitor);
@@ -921,7 +964,7 @@ pub fn _reload_node<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, default_config:
                for monitor in monitors_read.iter_mut() {
                        assert!(channel_monitors.insert(monitor.get_funding_txo().0, monitor).is_none());
                }
-               <(BlockHash, ChannelManager<&test_utils::TestChainMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestKeysInterface, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestRouter, &test_utils::TestLogger>)>::read(&mut node_read, ChannelManagerReadArgs {
+               <(BlockHash, TestChannelManager<'b, 'c>)>::read(&mut node_read, ChannelManagerReadArgs {
                        default_config,
                        entropy_source: node.keys_manager,
                        node_signer: node.keys_manager,
@@ -938,7 +981,7 @@ pub fn _reload_node<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, default_config:
 
        for monitor in monitors_read.drain(..) {
                assert_eq!(node.chain_monitor.watch_channel(monitor.get_funding_txo().0, monitor),
-                       ChannelMonitorUpdateStatus::Completed);
+                       Ok(ChannelMonitorUpdateStatus::Completed));
                check_added_monitors!(node, 1);
        }
 
@@ -962,7 +1005,23 @@ macro_rules! reload_node {
        };
 }
 
-pub fn create_funding_transaction<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, expected_counterparty_node_id: &PublicKey, expected_chan_value: u64, expected_user_chan_id: u128) -> ([u8; 32], Transaction, OutPoint) {
+pub fn create_funding_transaction<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>,
+       expected_counterparty_node_id: &PublicKey, expected_chan_value: u64, expected_user_chan_id: u128)
+ -> (ChannelId, Transaction, OutPoint)
+{
+       internal_create_funding_transaction(node, expected_counterparty_node_id, expected_chan_value, expected_user_chan_id, false)
+}
+
+pub fn create_coinbase_funding_transaction<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>,
+       expected_counterparty_node_id: &PublicKey, expected_chan_value: u64, expected_user_chan_id: u128)
+ -> (ChannelId, Transaction, OutPoint)
+{
+       internal_create_funding_transaction(node, expected_counterparty_node_id, expected_chan_value, expected_user_chan_id, true)
+}
+
+fn internal_create_funding_transaction<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>,
+       expected_counterparty_node_id: &PublicKey, expected_chan_value: u64, expected_user_chan_id: u128,
+       coinbase: bool) -> (ChannelId, Transaction, OutPoint) {
        let chan_id = *node.network_chan_count.borrow();
 
        let events = node.node.get_and_clear_pending_events();
@@ -973,7 +1032,16 @@ pub fn create_funding_transaction<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, expected_
                        assert_eq!(*channel_value_satoshis, expected_chan_value);
                        assert_eq!(user_channel_id, expected_user_chan_id);
 
-                       let tx = Transaction { version: chan_id as i32, lock_time: PackedLockTime::ZERO, input: Vec::new(), output: vec![TxOut {
+                       let input = if coinbase {
+                               vec![TxIn {
+                                       previous_output: bitcoin::OutPoint::null(),
+                                       ..Default::default()
+                               }]
+                       } else {
+                               Vec::new()
+                       };
+
+                       let tx = Transaction { version: chan_id as i32, lock_time: PackedLockTime::ZERO, input, output: vec![TxOut {
                                value: *channel_value_satoshis, script_pubkey: output_script.clone(),
                        }]};
                        let funding_outpoint = OutPoint { txid: tx.txid(), index: 0 };
@@ -982,7 +1050,8 @@ pub fn create_funding_transaction<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, expected_
                _ => panic!("Unexpected event"),
        }
 }
-pub fn sign_funding_transaction<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a, 'b, 'c>, channel_value: u64, expected_temporary_channel_id: [u8; 32]) -> Transaction {
+
+pub fn sign_funding_transaction<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a, 'b, 'c>, channel_value: u64, expected_temporary_channel_id: ChannelId) -> Transaction {
        let (temporary_channel_id, tx, funding_output) = create_funding_transaction(node_a, &node_b.node.get_our_node_id(), channel_value, 42);
        assert_eq!(temporary_channel_id, expected_temporary_channel_id);
 
@@ -1025,7 +1094,7 @@ pub fn sign_funding_transaction<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &
 }
 
 // Receiver must have been initialized with manually_accept_inbound_channels set to true.
-pub fn open_zero_conf_channel<'a, 'b, 'c, 'd>(initiator: &'a Node<'b, 'c, 'd>, receiver: &'a Node<'b, 'c, 'd>, initiator_config: Option<UserConfig>) -> (bitcoin::Transaction, [u8; 32]) {
+pub fn open_zero_conf_channel<'a, 'b, 'c, 'd>(initiator: &'a Node<'b, 'c, 'd>, receiver: &'a Node<'b, 'c, 'd>, initiator_config: Option<UserConfig>) -> (bitcoin::Transaction, ChannelId) {
        let initiator_channels = initiator.node.list_usable_channels().len();
        let receiver_channels = receiver.node.list_usable_channels().len();
 
@@ -1123,7 +1192,7 @@ pub fn create_chan_between_nodes_with_value_confirm_first<'a, 'b, 'c, 'd>(node_r
        node_recv.node.handle_channel_ready(&node_conf.node.get_our_node_id(), &get_event_msg!(node_conf, MessageSendEvent::SendChannelReady, node_recv.node.get_our_node_id()));
 }
 
-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::ChannelReady, msgs::AnnouncementSignatures), [u8; 32]) {
+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::ChannelReady, msgs::AnnouncementSignatures), ChannelId) {
        let channel_id;
        let events_6 = node_conf.node.get_and_clear_pending_msg_events();
        assert_eq!(events_6.len(), 3);
@@ -1150,7 +1219,7 @@ pub fn create_chan_between_nodes_with_value_confirm_second<'a, 'b, 'c>(node_recv
        }), channel_id)
 }
 
-pub fn create_chan_between_nodes_with_value_confirm<'a, 'b, 'c, 'd>(node_a: &'a Node<'b, 'c, 'd>, node_b: &'a Node<'b, 'c, 'd>, tx: &Transaction) -> ((msgs::ChannelReady, msgs::AnnouncementSignatures), [u8; 32]) {
+pub fn create_chan_between_nodes_with_value_confirm<'a, 'b, 'c: 'd, 'd>(node_a: &'a Node<'b, 'c, 'd>, node_b: &'a Node<'b, 'c, 'd>, tx: &Transaction) -> ((msgs::ChannelReady, msgs::AnnouncementSignatures), ChannelId) {
        let conf_height = core::cmp::max(node_a.best_block_info().1 + 1, node_b.best_block_info().1 + 1);
        create_chan_between_nodes_with_value_confirm_first(node_a, node_b, tx, conf_height);
        confirm_transaction_at(node_a, tx, conf_height);
@@ -1159,7 +1228,7 @@ pub fn create_chan_between_nodes_with_value_confirm<'a, 'b, 'c, 'd>(node_a: &'a
        create_chan_between_nodes_with_value_confirm_second(node_b, node_a)
 }
 
-pub fn create_chan_between_nodes_with_value_a<'a, 'b, 'c, 'd>(node_a: &'a Node<'b, 'c, 'd>, node_b: &'a Node<'b, 'c, 'd>, channel_value: u64, push_msat: u64) -> ((msgs::ChannelReady, msgs::AnnouncementSignatures), [u8; 32], Transaction) {
+pub fn create_chan_between_nodes_with_value_a<'a, 'b, 'c: 'd, 'd>(node_a: &'a Node<'b, 'c, 'd>, node_b: &'a Node<'b, 'c, 'd>, channel_value: u64, push_msat: u64) -> ((msgs::ChannelReady, msgs::AnnouncementSignatures), ChannelId, Transaction) {
        let tx = create_chan_between_nodes_with_value_init(node_a, node_b, channel_value, push_msat);
        let (msgs, chan_id) = create_chan_between_nodes_with_value_confirm(node_a, node_b, &tx);
        (msgs, chan_id, tx)
@@ -1199,11 +1268,11 @@ pub fn create_chan_between_nodes_with_value_b<'a, 'b, 'c>(node_a: &Node<'a, 'b,
        ((*announcement).clone(), as_update, bs_update)
 }
 
-pub fn create_announced_chan_between_nodes<'a, 'b, 'c, 'd>(nodes: &'a Vec<Node<'b, 'c, 'd>>, a: usize, b: usize) -> (msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
+pub fn create_announced_chan_between_nodes<'a, 'b, 'c: 'd, 'd>(nodes: &'a Vec<Node<'b, 'c, 'd>>, a: usize, b: usize) -> (msgs::ChannelUpdate, msgs::ChannelUpdate, ChannelId, Transaction) {
        create_announced_chan_between_nodes_with_value(nodes, a, b, 100000, 10001)
 }
 
-pub fn create_announced_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) -> (msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
+pub fn create_announced_chan_between_nodes_with_value<'a, 'b, 'c: 'd, 'd>(nodes: &'a Vec<Node<'b, 'c, 'd>>, a: usize, b: usize, channel_value: u64, push_msat: u64) -> (msgs::ChannelUpdate, msgs::ChannelUpdate, ChannelId, Transaction) {
        let chan_announcement = create_chan_between_nodes_with_value(&nodes[a], &nodes[b], channel_value, push_msat);
        update_nodes_with_chan_announce(nodes, a, b, &chan_announcement.0, &chan_announcement.1, &chan_announcement.2);
        (chan_announcement.1, chan_announcement.2, chan_announcement.3, chan_announcement.4)
@@ -1399,14 +1468,18 @@ macro_rules! check_closed_broadcast {
 }
 
 /// Check that a channel's closing channel events has been issued
-pub fn check_closed_event(node: &Node, events_count: usize, expected_reason: ClosureReason, is_check_discard_funding: bool) {
+pub fn check_closed_event(node: &Node, events_count: usize, expected_reason: ClosureReason, is_check_discard_funding: bool,
+       expected_counterparty_node_ids: &[PublicKey], expected_channel_capacity: u64) {
        let events = node.node.get_and_clear_pending_events();
        assert_eq!(events.len(), events_count, "{:?}", events);
        let mut issues_discard_funding = false;
-       for event in events {
+       for (idx, event) in events.into_iter().enumerate() {
                match event {
-                       Event::ChannelClosed { ref reason, .. } => {
+                       Event::ChannelClosed { ref reason, counterparty_node_id, 
+                               channel_capacity_sats, .. } => {
                                assert_eq!(*reason, expected_reason);
+                               assert_eq!(counterparty_node_id.unwrap(), expected_counterparty_node_ids[idx]);
+                               assert_eq!(channel_capacity_sats.unwrap(), expected_channel_capacity);
                        },
                        Event::DiscardFunding { .. } => {
                                issues_discard_funding = true;
@@ -1422,15 +1495,16 @@ pub fn check_closed_event(node: &Node, events_count: usize, expected_reason: Clo
 /// Don't use this, use the identically-named function instead.
 #[macro_export]
 macro_rules! check_closed_event {
-       ($node: expr, $events: expr, $reason: expr) => {
-               check_closed_event!($node, $events, $reason, false);
+       ($node: expr, $events: expr, $reason: expr, $counterparty_node_ids: expr, $channel_capacity: expr) => {
+               check_closed_event!($node, $events, $reason, false, $counterparty_node_ids, $channel_capacity);
        };
-       ($node: expr, $events: expr, $reason: expr, $is_check_discard_funding: expr) => {
-               $crate::ln::functional_test_utils::check_closed_event(&$node, $events, $reason, $is_check_discard_funding);
+       ($node: expr, $events: expr, $reason: expr, $is_check_discard_funding: expr, $counterparty_node_ids: expr, $channel_capacity: expr) => {
+               $crate::ln::functional_test_utils::check_closed_event(&$node, $events, $reason, 
+                       $is_check_discard_funding, &$counterparty_node_ids, $channel_capacity);
        }
 }
 
-pub fn close_channel<'a, 'b, 'c>(outbound_node: &Node<'a, 'b, 'c>, inbound_node: &Node<'a, 'b, 'c>, channel_id: &[u8; 32], funding_tx: Transaction, close_inbound_first: bool) -> (msgs::ChannelUpdate, msgs::ChannelUpdate, Transaction) {
+pub fn close_channel<'a, 'b, 'c>(outbound_node: &Node<'a, 'b, 'c>, inbound_node: &Node<'a, 'b, 'c>, channel_id: &ChannelId, funding_tx: Transaction, close_inbound_first: bool) -> (msgs::ChannelUpdate, msgs::ChannelUpdate, Transaction) {
        let (node_a, broadcaster_a, struct_a) = if close_inbound_first { (&inbound_node.node, &inbound_node.tx_broadcaster, inbound_node) } else { (&outbound_node.node, &outbound_node.tx_broadcaster, outbound_node) };
        let (node_b, broadcaster_b, struct_b) = if close_inbound_first { (&outbound_node.node, &outbound_node.tx_broadcaster, outbound_node) } else { (&inbound_node.node, &inbound_node.tx_broadcaster, inbound_node) };
        let (tx_a, tx_b);
@@ -1651,8 +1725,8 @@ macro_rules! commitment_signed_dance {
                        bs_revoke_and_ack
                }
        };
-       ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, false /* no extra message */) => {
-               assert!($crate::ln::functional_test_utils::commitment_signed_dance_through_cp_raa(&$node_a, &$node_b, $fail_backwards).is_none());
+       ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, false /* no extra message */, $incl_claim: expr) => {
+               assert!($crate::ln::functional_test_utils::commitment_signed_dance_through_cp_raa(&$node_a, &$node_b, $fail_backwards, $incl_claim).is_none());
        };
        ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr) => {
                $crate::ln::functional_test_utils::do_commitment_signed_dance(&$node_a, &$node_b, &$commitment_signed, $fail_backwards, false);
@@ -1663,11 +1737,16 @@ macro_rules! commitment_signed_dance {
 /// the initiator's `revoke_and_ack` response. i.e. [`do_main_commitment_signed_dance`] plus the
 /// `revoke_and_ack` response to it.
 ///
+/// An HTLC claim on one channel blocks the RAA channel monitor update for the outbound edge
+/// channel until the inbound edge channel preimage monitor update completes. Thus, when checking
+/// for channel monitor updates, we need to know if an `update_fulfill_htlc` was included in the
+/// the commitment we're exchanging. `includes_claim` provides that information.
+///
 /// Returns any additional message `node_b` generated in addition to the `revoke_and_ack` response.
-pub fn commitment_signed_dance_through_cp_raa(node_a: &Node<'_, '_, '_>, node_b: &Node<'_, '_, '_>, fail_backwards: bool) -> Option<MessageSendEvent> {
+pub fn commitment_signed_dance_through_cp_raa(node_a: &Node<'_, '_, '_>, node_b: &Node<'_, '_, '_>, fail_backwards: bool, includes_claim: bool) -> Option<MessageSendEvent> {
        let (extra_msg_option, bs_revoke_and_ack) = do_main_commitment_signed_dance(node_a, node_b, fail_backwards);
        node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &bs_revoke_and_ack);
-       check_added_monitors(node_a, 1);
+       check_added_monitors(node_a, if includes_claim { 0 } else { 1 });
        extra_msg_option
 }
 
@@ -1714,7 +1793,10 @@ pub fn do_commitment_signed_dance(node_a: &Node<'_, '_, '_>, node_b: &Node<'_, '
        node_a.node.handle_commitment_signed(&node_b.node.get_our_node_id(), commitment_signed);
        check_added_monitors!(node_a, 1);
 
-       commitment_signed_dance!(node_a, node_b, (), fail_backwards, true, false);
+       // If this commitment signed dance was due to a claim, don't check for an RAA monitor update.
+       let got_claim = node_a.node.test_raa_monitor_updates_held(node_b.node.get_our_node_id(), commitment_signed.channel_id);
+       if fail_backwards { assert!(!got_claim); }
+       commitment_signed_dance!(node_a, node_b, (), fail_backwards, true, false, got_claim);
 
        if skip_last_step { return; }
 
@@ -1769,14 +1851,14 @@ macro_rules! get_payment_preimage_hash {
 }
 
 /// Gets a route from the given sender to the node described in `payment_params`.
-pub fn get_route(send_node: &Node, payment_params: &PaymentParameters, recv_value: u64) -> Result<Route, msgs::LightningError> {
+pub fn get_route(send_node: &Node, route_params: &RouteParameters) -> Result<Route, msgs::LightningError> {
        let scorer = TestScorer::new();
        let keys_manager = TestKeysInterface::new(&[0u8; 32], bitcoin::network::constants::Network::Testnet);
        let random_seed_bytes = keys_manager.get_secure_random_bytes();
        router::get_route(
-               &send_node.node.get_our_node_id(), payment_params, &send_node.network_graph.read_only(),
+               &send_node.node.get_our_node_id(), route_params, &send_node.network_graph.read_only(),
                Some(&send_node.node.list_usable_channels().iter().collect::<Vec<_>>()),
-               recv_value, send_node.logger, &scorer, &(), &random_seed_bytes
+               send_node.logger, &scorer, &(), &random_seed_bytes
        )
 }
 
@@ -1785,9 +1867,10 @@ pub fn get_route(send_node: &Node, payment_params: &PaymentParameters, recv_valu
 /// Don't use this, use the identically-named function instead.
 #[macro_export]
 macro_rules! get_route {
-       ($send_node: expr, $payment_params: expr, $recv_value: expr) => {
-               $crate::ln::functional_test_utils::get_route(&$send_node, &$payment_params, $recv_value)
-       }
+       ($send_node: expr, $payment_params: expr, $recv_value: expr) => {{
+               let route_params = $crate::routing::router::RouteParameters::from_payment_params_and_value($payment_params, $recv_value);
+               $crate::ln::functional_test_utils::get_route(&$send_node, &route_params)
+       }}
 }
 
 #[cfg(test)]
@@ -1799,13 +1882,36 @@ macro_rules! get_route_and_payment_hash {
                $crate::get_route_and_payment_hash!($send_node, $recv_node, payment_params, $recv_value)
        }};
        ($send_node: expr, $recv_node: expr, $payment_params: expr, $recv_value: expr) => {{
+               let route_params = $crate::routing::router::RouteParameters::from_payment_params_and_value($payment_params, $recv_value);
                let (payment_preimage, payment_hash, payment_secret) =
                        $crate::ln::functional_test_utils::get_payment_preimage_hash(&$recv_node, Some($recv_value), None);
-               let route = $crate::ln::functional_test_utils::get_route(&$send_node, &$payment_params, $recv_value);
+               let route = $crate::ln::functional_test_utils::get_route(&$send_node, &route_params);
                (route.unwrap(), payment_hash, payment_preimage, payment_secret)
        }}
 }
 
+pub fn check_payment_claimable(
+       event: &Event, expected_payment_hash: PaymentHash, expected_payment_secret: PaymentSecret,
+       expected_recv_value: u64, expected_payment_preimage: Option<PaymentPreimage>,
+       expected_receiver_node_id: PublicKey,
+) {
+       match event {
+               Event::PaymentClaimable { ref payment_hash, ref purpose, amount_msat, receiver_node_id, .. } => {
+                       assert_eq!(expected_payment_hash, *payment_hash);
+                       assert_eq!(expected_recv_value, *amount_msat);
+                       assert_eq!(expected_receiver_node_id, receiver_node_id.unwrap());
+                       match purpose {
+                               PaymentPurpose::InvoicePayment { payment_preimage, payment_secret, .. } => {
+                                       assert_eq!(&expected_payment_preimage, payment_preimage);
+                                       assert_eq!(expected_payment_secret, *payment_secret);
+                               },
+                               _ => {},
+                       }
+               },
+               _ => panic!("Unexpected event"),
+       }
+}
+
 #[macro_export]
 #[cfg(any(test, ldk_bench, feature = "_test_utils"))]
 macro_rules! expect_payment_claimable {
@@ -1815,22 +1921,8 @@ macro_rules! expect_payment_claimable {
        ($node: expr, $expected_payment_hash: expr, $expected_payment_secret: expr, $expected_recv_value: expr, $expected_payment_preimage: expr, $expected_receiver_node_id: expr) => {
                let events = $node.node.get_and_clear_pending_events();
                assert_eq!(events.len(), 1);
-               match events[0] {
-                       $crate::events::Event::PaymentClaimable { ref payment_hash, ref purpose, amount_msat, receiver_node_id, .. } => {
-                               assert_eq!($expected_payment_hash, *payment_hash);
-                               assert_eq!($expected_recv_value, amount_msat);
-                               assert_eq!($expected_receiver_node_id, receiver_node_id.unwrap());
-                               match purpose {
-                                       $crate::events::PaymentPurpose::InvoicePayment { payment_preimage, payment_secret, .. } => {
-                                               assert_eq!(&$expected_payment_preimage, payment_preimage);
-                                               assert_eq!($expected_payment_secret, *payment_secret);
-                                       },
-                                       _ => {},
-                               }
-                       },
-                       _ => panic!("Unexpected event"),
-               }
-       }
+               $crate::ln::functional_test_utils::check_payment_claimable(&events[0], $expected_payment_hash, $expected_payment_secret, $expected_recv_value, $expected_payment_preimage, $expected_receiver_node_id)
+       };
 }
 
 #[macro_export]
@@ -1851,7 +1943,7 @@ macro_rules! expect_payment_claimed {
 
 pub fn expect_payment_sent<CM: AChannelManager, H: NodeHolder<CM=CM>>(node: &H,
        expected_payment_preimage: PaymentPreimage, expected_fee_msat_opt: Option<Option<u64>>,
-       expect_per_path_claims: bool,
+       expect_per_path_claims: bool, expect_post_ev_mon_update: bool,
 ) {
        let events = node.node().get_and_clear_pending_events();
        let expected_payment_hash = PaymentHash(
@@ -1861,6 +1953,9 @@ pub fn expect_payment_sent<CM: AChannelManager, H: NodeHolder<CM=CM>>(node: &H,
        } else {
                assert_eq!(events.len(), 1);
        }
+       if expect_post_ev_mon_update {
+               check_added_monitors(node, 1);
+       }
        let expected_payment_id = match events[0] {
                Event::PaymentSent { ref payment_id, ref payment_preimage, ref payment_hash, ref fee_paid_msat } => {
                        assert_eq!(expected_payment_preimage, *payment_preimage);
@@ -1887,17 +1982,6 @@ pub fn expect_payment_sent<CM: AChannelManager, H: NodeHolder<CM=CM>>(node: &H,
        }
 }
 
-#[cfg(test)]
-#[macro_export]
-macro_rules! expect_payment_sent_without_paths {
-       ($node: expr, $expected_payment_preimage: expr) => {
-               expect_payment_sent!($node, $expected_payment_preimage, None::<u64>, false);
-       };
-       ($node: expr, $expected_payment_preimage: expr, $expected_fee_msat_opt: expr) => {
-               expect_payment_sent!($node, $expected_payment_preimage, $expected_fee_msat_opt, false);
-       }
-}
-
 #[macro_export]
 macro_rules! expect_payment_sent {
        ($node: expr, $expected_payment_preimage: expr) => {
@@ -1908,7 +1992,7 @@ macro_rules! expect_payment_sent {
        };
        ($node: expr, $expected_payment_preimage: expr, $expected_fee_msat_opt: expr, $expect_paths: expr) => {
                $crate::ln::functional_test_utils::expect_payment_sent(&$node, $expected_payment_preimage,
-                       $expected_fee_msat_opt.map(|o| Some(o)), $expect_paths);
+                       $expected_fee_msat_opt.map(|o| Some(o)), $expect_paths, true);
        }
 }
 
@@ -1925,29 +2009,48 @@ macro_rules! expect_payment_path_successful {
        }
 }
 
+pub fn expect_payment_forwarded<CM: AChannelManager, H: NodeHolder<CM=CM>>(
+       event: Event, node: &H, prev_node: &H, next_node: &H, expected_fee: Option<u64>,
+       upstream_force_closed: bool, downstream_force_closed: bool
+) {
+       match event {
+               Event::PaymentForwarded {
+                       fee_earned_msat, prev_channel_id, claim_from_onchain_tx, next_channel_id,
+                       outbound_amount_forwarded_msat: _
+               } => {
+                       assert_eq!(fee_earned_msat, expected_fee);
+                       if !upstream_force_closed {
+                               // Is the event prev_channel_id in one of the channels between the two nodes?
+                               assert!(node.node().list_channels().iter().any(|x| x.counterparty.node_id == prev_node.node().get_our_node_id() && x.channel_id == prev_channel_id.unwrap()));
+                       }
+                       // We check for force closures since a force closed channel is removed from the
+                       // node's channel list
+                       if !downstream_force_closed {
+                               assert!(node.node().list_channels().iter().any(|x| x.counterparty.node_id == next_node.node().get_our_node_id() && x.channel_id == next_channel_id.unwrap()));
+                       }
+                       assert_eq!(claim_from_onchain_tx, downstream_force_closed);
+               },
+               _ => panic!("Unexpected event"),
+       }
+}
+
 macro_rules! expect_payment_forwarded {
        ($node: expr, $prev_node: expr, $next_node: expr, $expected_fee: expr, $upstream_force_closed: expr, $downstream_force_closed: expr) => {
-               let events = $node.node.get_and_clear_pending_events();
+               let mut events = $node.node.get_and_clear_pending_events();
                assert_eq!(events.len(), 1);
-               match events[0] {
-                       Event::PaymentForwarded {
-                               fee_earned_msat, prev_channel_id, claim_from_onchain_tx, next_channel_id,
-                               outbound_amount_forwarded_msat: _
-                       } => {
-                               assert_eq!(fee_earned_msat, $expected_fee);
-                               if fee_earned_msat.is_some() {
-                                       // Is the event prev_channel_id in one of the channels between the two nodes?
-                                       assert!($node.node.list_channels().iter().any(|x| x.counterparty.node_id == $prev_node.node.get_our_node_id() && x.channel_id == prev_channel_id.unwrap()));
-                               }
-                               // We check for force closures since a force closed channel is removed from the
-                               // node's channel list
-                               if !$downstream_force_closed {
-                                       assert!($node.node.list_channels().iter().any(|x| x.counterparty.node_id == $next_node.node.get_our_node_id() && x.channel_id == next_channel_id.unwrap()));
-                               }
-                               assert_eq!(claim_from_onchain_tx, $downstream_force_closed);
-                       },
-                       _ => panic!("Unexpected event"),
-               }
+               $crate::ln::functional_test_utils::expect_payment_forwarded(
+                       events.pop().unwrap(), &$node, &$prev_node, &$next_node, $expected_fee,
+                       $upstream_force_closed, $downstream_force_closed);
+       }
+}
+
+#[cfg(test)]
+#[macro_export]
+macro_rules! expect_channel_shutdown_state {
+       ($node: expr, $chan_id: expr, $state: path) => {
+               let chan_details = $node.node.list_channels().into_iter().filter(|cd| cd.channel_id == $chan_id).collect::<Vec<ChannelDetails>>();
+               assert_eq!(chan_details.len(), 1);
+               assert_eq!(chan_details[0].channel_shutdown_state, Some($state));
        }
 }
 
@@ -2213,15 +2316,41 @@ pub fn do_claim_payment_along_route_with_extra_penultimate_hop_fees<'a, 'b, 'c>(
                assert_eq!(path.last().unwrap().node.get_our_node_id(), expected_paths[0].last().unwrap().node.get_our_node_id());
        }
        expected_paths[0].last().unwrap().node.claim_funds(our_payment_preimage);
+       pass_claimed_payment_along_route(origin_node, expected_paths, expected_extra_fees, skip_last, our_payment_preimage)
+}
 
+pub fn pass_claimed_payment_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_paths: &[&[&Node<'a, 'b, 'c>]], expected_extra_fees: &[u32], skip_last: bool, our_payment_preimage: PaymentPreimage) -> u64 {
        let claim_event = expected_paths[0].last().unwrap().node.get_and_clear_pending_events();
        assert_eq!(claim_event.len(), 1);
        match claim_event[0] {
-               Event::PaymentClaimed { purpose: PaymentPurpose::SpontaneousPayment(preimage), .. }|
-               Event::PaymentClaimed { purpose: PaymentPurpose::InvoicePayment { payment_preimage: Some(preimage), ..}, .. } =>
-                       assert_eq!(preimage, our_payment_preimage),
-               Event::PaymentClaimed { purpose: PaymentPurpose::InvoicePayment { .. }, payment_hash, .. } =>
-                       assert_eq!(&payment_hash.0, &Sha256::hash(&our_payment_preimage.0)[..]),
+               Event::PaymentClaimed {
+                       purpose: PaymentPurpose::SpontaneousPayment(preimage),
+                       amount_msat,
+                       ref htlcs,
+                       .. }
+               | Event::PaymentClaimed {
+                       purpose: PaymentPurpose::InvoicePayment { payment_preimage: Some(preimage), ..},
+                       ref htlcs,
+                       amount_msat,
+                       ..
+               } => {
+                       assert_eq!(preimage, our_payment_preimage);
+                       assert_eq!(htlcs.len(), expected_paths.len());  // One per path.
+                       assert_eq!(htlcs.iter().map(|h| h.value_msat).sum::<u64>(), amount_msat);
+                       expected_paths.iter().zip(htlcs).for_each(|(path, htlc)| check_claimed_htlc_channel(origin_node, path, htlc));
+               },
+               Event::PaymentClaimed {
+                       purpose: PaymentPurpose::InvoicePayment { .. },
+                       payment_hash,
+                       amount_msat,
+                       ref htlcs,
+                       ..
+               } => {
+                       assert_eq!(&payment_hash.0, &Sha256::hash(&our_payment_preimage.0)[..]);
+                       assert_eq!(htlcs.len(), expected_paths.len());  // One per path.
+                       assert_eq!(htlcs.iter().map(|h| h.value_msat).sum::<u64>(), amount_msat);
+                       expected_paths.iter().zip(htlcs).for_each(|(path, htlc)| check_claimed_htlc_channel(origin_node, path, htlc));
+               }
                _ => panic!(),
        }
 
@@ -2281,14 +2410,14 @@ pub fn do_claim_payment_along_route_with_extra_penultimate_hop_fees<'a, 'b, 'c>(
                                                let peer_state = per_peer_state.get(&$prev_node.node.get_our_node_id())
                                                        .unwrap().lock().unwrap();
                                                let channel = peer_state.channel_by_id.get(&next_msgs.as_ref().unwrap().0.channel_id).unwrap();
-                                               if let Some(prev_config) = channel.context.prev_config() {
+                                               if let Some(prev_config) = channel.context().prev_config() {
                                                        prev_config.forwarding_fee_base_msat
                                                } else {
-                                                       channel.context.config().forwarding_fee_base_msat
+                                                       channel.context().config().forwarding_fee_base_msat
                                                }
                                        };
                                        if $idx == 1 { fee += expected_extra_fees[i]; }
-                                       expect_payment_forwarded!($node, $next_node, $prev_node, Some(fee as u64), false, false);
+                                       expect_payment_forwarded!(*$node, $next_node, $prev_node, Some(fee as u64), false, false);
                                        expected_total_fee_msat += fee as u64;
                                        check_added_monitors!($node, 1);
                                        let new_next_msgs = if $new_msgs {
@@ -2356,10 +2485,11 @@ 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) {
+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, PaymentId) {
        let payment_params = PaymentParameters::from_node_id(expected_route.last().unwrap().node.get_our_node_id(), TEST_FINAL_CLTV)
                .with_bolt11_features(expected_route.last().unwrap().node.invoice_features()).unwrap();
-       let route = get_route(origin_node, &payment_params, recv_value).unwrap();
+       let route_params = RouteParameters::from_payment_params_and_value(payment_params, recv_value);
+       let route = get_route(origin_node, &route_params).unwrap();
        assert_eq!(route.paths.len(), 1);
        assert_eq!(route.paths[0].hops.len(), expected_route.len());
        for (node, hop) in expected_route.iter().zip(route.paths[0].hops.iter()) {
@@ -2367,20 +2497,20 @@ pub fn route_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route:
        }
 
        let res = send_along_route(origin_node, route, expected_route, recv_value);
-       (res.0, res.1, res.2)
+       (res.0, res.1, res.2, res.3)
 }
 
 pub fn route_over_limit<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64)  {
        let payment_params = PaymentParameters::from_node_id(expected_route.last().unwrap().node.get_our_node_id(), TEST_FINAL_CLTV)
                .with_bolt11_features(expected_route.last().unwrap().node.invoice_features()).unwrap();
+       let route_params = RouteParameters::from_payment_params_and_value(payment_params, recv_value);
        let network_graph = origin_node.network_graph.read_only();
        let scorer = test_utils::TestScorer::new();
        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 = router::get_route(
-               &origin_node.node.get_our_node_id(), &payment_params, &network_graph,
-               None, recv_value, origin_node.logger, &scorer, &(), &random_seed_bytes).unwrap();
+       let route = router::get_route(&origin_node.node.get_our_node_id(), &route_params, &network_graph,
+               None, origin_node.logger, &scorer, &(), &random_seed_bytes).unwrap();
        assert_eq!(route.paths.len(), 1);
        assert_eq!(route.paths[0].hops.len(), expected_route.len());
        for (node, hop) in expected_route.iter().zip(route.paths[0].hops.iter()) {
@@ -2394,7 +2524,7 @@ pub fn route_over_limit<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_rou
                assert!(err.contains("Cannot send value that would put us over the max HTLC value in flight our peer will accept")));
 }
 
-pub fn send_payment<'a, 'b, 'c>(origin: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) -> (PaymentPreimage, PaymentHash, PaymentSecret) {
+pub fn send_payment<'a, 'b, 'c>(origin: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) -> (PaymentPreimage, PaymentHash, PaymentSecret, PaymentId) {
        let res = route_payment(&origin, expected_route, recv_value);
        claim_payment(&origin, expected_route, res.0);
        res
@@ -2529,7 +2659,7 @@ pub fn create_chanmon_cfgs(node_count: usize) -> Vec<TestChanMonCfg> {
                let persister = test_utils::TestPersister::new();
                let seed = [i as u8; 32];
                let keys_manager = test_utils::TestKeysInterface::new(&seed, Network::Testnet);
-               let scorer = Mutex::new(test_utils::TestScorer::new());
+               let scorer = RwLock::new(test_utils::TestScorer::new());
 
                chan_mon_cfgs.push(TestChanMonCfg { tx_broadcaster, fee_estimator, chain_source, logger, persister, keys_manager, scorer });
        }
@@ -2538,10 +2668,14 @@ pub fn create_chanmon_cfgs(node_count: usize) -> Vec<TestChanMonCfg> {
 }
 
 pub fn create_node_cfgs<'a>(node_count: usize, chanmon_cfgs: &'a Vec<TestChanMonCfg>) -> Vec<NodeCfg<'a>> {
+       create_node_cfgs_with_persisters(node_count, chanmon_cfgs, chanmon_cfgs.iter().map(|c| &c.persister).collect())
+}
+
+pub fn create_node_cfgs_with_persisters<'a>(node_count: usize, chanmon_cfgs: &'a Vec<TestChanMonCfg>, persisters: Vec<&'a impl Persist<TestChannelSigner>>) -> Vec<NodeCfg<'a>> {
        let mut nodes = Vec::new();
 
        for i in 0..node_count {
-               let chain_monitor = test_utils::TestChainMonitor::new(Some(&chanmon_cfgs[i].chain_source), &chanmon_cfgs[i].tx_broadcaster, &chanmon_cfgs[i].logger, &chanmon_cfgs[i].fee_estimator, &chanmon_cfgs[i].persister, &chanmon_cfgs[i].keys_manager);
+               let chain_monitor = test_utils::TestChainMonitor::new(Some(&chanmon_cfgs[i].chain_source), &chanmon_cfgs[i].tx_broadcaster, &chanmon_cfgs[i].logger, &chanmon_cfgs[i].fee_estimator, persisters[i], &chanmon_cfgs[i].keys_manager);
                let network_graph = Arc::new(NetworkGraph::new(Network::Testnet, &chanmon_cfgs[i].logger));
                let seed = [i as u8; 32];
                nodes.push(NodeCfg {
@@ -2572,8 +2706,10 @@ pub fn test_default_channel_config() -> UserConfig {
        // It now defaults to 1, so we simply set it to the expected value here.
        default_config.channel_handshake_config.our_htlc_minimum_msat = 1000;
        // When most of our tests were written, we didn't have the notion of a `max_dust_htlc_exposure_msat`,
-       // It now defaults to 5_000_000 msat; to avoid interfering with tests we bump it to 50_000_000 msat.
-       default_config.channel_config.max_dust_htlc_exposure_msat = 50_000_000;
+       // to avoid interfering with tests we bump it to 50_000_000 msat (assuming the default test
+       // feerate of 253).
+       default_config.channel_config.max_dust_htlc_exposure =
+               MaxDustHTLCExposure::FeeRateMultiplier(50_000_000 / 253);
        default_config
 }
 
@@ -2602,6 +2738,7 @@ pub fn create_network<'a, 'b: 'a, 'c: 'b>(node_count: usize, cfgs: &'b Vec<NodeC
 
        for i in 0..node_count {
                let gossip_sync = P2PGossipSync::new(cfgs[i].network_graph.as_ref(), None, cfgs[i].logger);
+               let wallet_source = Arc::new(test_utils::TestWalletSource::new(SecretKey::from_slice(&[i as u8 + 1; 32]).unwrap()));
                nodes.push(Node{
                        chain_source: cfgs[i].chain_source, tx_broadcaster: cfgs[i].tx_broadcaster,
                        fee_estimator: cfgs[i].fee_estimator, router: &cfgs[i].router,
@@ -2612,6 +2749,11 @@ pub fn create_network<'a, 'b: 'a, 'c: 'b>(node_count: usize, cfgs: &'b Vec<NodeC
                        blocks: Arc::clone(&cfgs[i].tx_broadcaster.blocks),
                        connect_style: Rc::clone(&connect_style),
                        override_init_features: Rc::clone(&cfgs[i].override_init_features),
+                       wallet_source: Arc::clone(&wallet_source),
+                       bump_tx_handler: BumpTransactionEventHandler::new(
+                               cfgs[i].tx_broadcaster, Arc::new(Wallet::new(Arc::clone(&wallet_source), cfgs[i].logger)),
+                               &cfgs[i].keys_manager, cfgs[i].logger,
+                       ),
                })
        }
 
@@ -2649,7 +2791,7 @@ pub enum HTLCType { NONE, TIMEOUT, SUCCESS }
 ///
 /// All broadcast transactions must be accounted for in one of the above three types of we'll
 /// also fail.
-pub fn test_txn_broadcast<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, chan: &(msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction), commitment_tx: Option<Transaction>, has_htlc_tx: HTLCType) -> Vec<Transaction>  {
+pub fn test_txn_broadcast<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, chan: &(msgs::ChannelUpdate, msgs::ChannelUpdate, ChannelId, Transaction), commitment_tx: Option<Transaction>, has_htlc_tx: HTLCType) -> Vec<Transaction>  {
        let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
        let mut txn_seen = HashSet::new();
        node_txn.retain(|tx| txn_seen.insert(tx.txid()));
@@ -2795,7 +2937,9 @@ macro_rules! get_channel_value_stat {
        ($node: expr, $counterparty_node: expr, $channel_id: expr) => {{
                let peer_state_lock = $node.node.per_peer_state.read().unwrap();
                let chan_lock = peer_state_lock.get(&$counterparty_node.node.get_our_node_id()).unwrap().lock().unwrap();
-               let chan = chan_lock.channel_by_id.get(&$channel_id).unwrap();
+               let chan = chan_lock.channel_by_id.get(&$channel_id).map(
+                       |phase| if let ChannelPhase::Funded(chan) = phase { Some(chan) } else { None }
+               ).flatten().unwrap();
                chan.get_value_stat()
        }}
 }
@@ -2816,13 +2960,6 @@ macro_rules! get_chan_reestablish_msgs {
                                        panic!("Unexpected event")
                                }
                        }
-                       for chan in $src_node.node.list_channels() {
-                               if chan.is_public && chan.counterparty.node_id != $dst_node.node.get_our_node_id() {
-                                       if let Some(scid) = chan.short_channel_id {
-                                               assert!(announcements.remove(&scid));
-                                       }
-                               }
-                       }
                        assert!(announcements.is_empty());
                        res
                }
@@ -2907,9 +3044,48 @@ macro_rules! handle_chan_reestablish_msgs {
        }
 }
 
+pub struct ReconnectArgs<'a, 'b, 'c, 'd> {
+       pub node_a: &'a Node<'b, 'c, 'd>,
+       pub node_b: &'a Node<'b, 'c, 'd>,
+       pub send_channel_ready: (bool, bool),
+       pub pending_responding_commitment_signed: (bool, bool),
+       /// Indicates that the pending responding commitment signed will be a dup for the recipient,
+       /// and no monitor update is expected
+       pub pending_responding_commitment_signed_dup_monitor: (bool, bool),
+       pub pending_htlc_adds: (usize, usize),
+       pub pending_htlc_claims: (usize, usize),
+       pub pending_htlc_fails: (usize, usize),
+       pub pending_cell_htlc_claims: (usize, usize),
+       pub pending_cell_htlc_fails: (usize, usize),
+       pub pending_raa: (bool, bool),
+}
+
+impl<'a, 'b, 'c, 'd> ReconnectArgs<'a, 'b, 'c, 'd> {
+       pub fn new(node_a: &'a Node<'b, 'c, 'd>, node_b: &'a Node<'b, 'c, 'd>) -> Self {
+               Self {
+                       node_a,
+                       node_b,
+                       send_channel_ready: (false, false),
+                       pending_responding_commitment_signed: (false, false),
+                       pending_responding_commitment_signed_dup_monitor: (false, false),
+                       pending_htlc_adds: (0, 0),
+                       pending_htlc_claims: (0, 0),
+                       pending_htlc_fails: (0, 0),
+                       pending_cell_htlc_claims: (0, 0),
+                       pending_cell_htlc_fails: (0, 0),
+                       pending_raa: (false, false),
+               }
+       }
+}
+
 /// 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_channel_ready: (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))  {
+pub fn reconnect_nodes<'a, 'b, 'c, 'd>(args: ReconnectArgs<'a, 'b, 'c, 'd>) {
+       let ReconnectArgs {
+               node_a, node_b, send_channel_ready, pending_htlc_adds, pending_htlc_claims, pending_htlc_fails,
+               pending_cell_htlc_claims, pending_cell_htlc_fails, pending_raa,
+               pending_responding_commitment_signed, pending_responding_commitment_signed_dup_monitor,
+       } = args;
        node_a.node.peer_connected(&node_b.node.get_our_node_id(), &msgs::Init {
                features: node_b.node.init_features(), networks: None, remote_network_address: None
        }, true).unwrap();
@@ -2993,13 +3169,12 @@ pub fn reconnect_nodes<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a,
                } else {
                        assert!(chan_msgs.1.is_none());
                }
-               if pending_htlc_adds.0 != 0 || pending_htlc_claims.0 != 0 || pending_htlc_fails.0 != 0 || pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 {
+               if pending_htlc_adds.0 != 0 || pending_htlc_claims.0 != 0 || pending_htlc_fails.0 != 0 ||
+                       pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 ||
+                       pending_responding_commitment_signed.0
+               {
                        let commitment_update = chan_msgs.2.unwrap();
-                       if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed
-                               assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.0 as usize);
-                       } else {
-                               assert!(commitment_update.update_add_htlcs.is_empty());
-                       }
+                       assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.0);
                        assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.0 + pending_cell_htlc_claims.0);
                        assert_eq!(commitment_update.update_fail_htlcs.len(), pending_htlc_fails.0 + pending_cell_htlc_fails.0);
                        assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
@@ -3013,7 +3188,7 @@ pub fn reconnect_nodes<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a,
                                node_a.node.handle_update_fail_htlc(&node_b.node.get_our_node_id(), &update_fail);
                        }
 
-                       if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed
+                       if !pending_responding_commitment_signed.0 {
                                commitment_signed_dance!(node_a, node_b, commitment_update.commitment_signed, false);
                        } else {
                                node_a.node.handle_commitment_signed(&node_b.node.get_our_node_id(), &commitment_update.commitment_signed);
@@ -3022,7 +3197,7 @@ pub fn reconnect_nodes<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a,
                                // No commitment_signed so get_event_msg's assert(len == 1) passes
                                node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &as_revoke_and_ack);
                                assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
-                               check_added_monitors!(node_b, 1);
+                               check_added_monitors!(node_b, if pending_responding_commitment_signed_dup_monitor.0 { 0 } else { 1 });
                        }
                } else {
                        assert!(chan_msgs.2.is_none());
@@ -3052,11 +3227,12 @@ pub fn reconnect_nodes<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a,
                } else {
                        assert!(chan_msgs.1.is_none());
                }
-               if pending_htlc_adds.1 != 0 || pending_htlc_claims.1 != 0 || pending_htlc_fails.1 != 0 || pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 {
+               if pending_htlc_adds.1 != 0 || pending_htlc_claims.1 != 0 || pending_htlc_fails.1 != 0 ||
+                       pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 ||
+                       pending_responding_commitment_signed.1
+               {
                        let commitment_update = chan_msgs.2.unwrap();
-                       if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed
-                               assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.1 as usize);
-                       }
+                       assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.1);
                        assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.1 + pending_cell_htlc_claims.1);
                        assert_eq!(commitment_update.update_fail_htlcs.len(), pending_htlc_fails.1 + pending_cell_htlc_fails.1);
                        assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
@@ -3070,7 +3246,7 @@ pub fn reconnect_nodes<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a,
                                node_b.node.handle_update_fail_htlc(&node_a.node.get_our_node_id(), &update_fail);
                        }
 
-                       if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed
+                       if !pending_responding_commitment_signed.1 {
                                commitment_signed_dance!(node_b, node_a, commitment_update.commitment_signed, false);
                        } else {
                                node_b.node.handle_commitment_signed(&node_a.node.get_our_node_id(), &commitment_update.commitment_signed);
@@ -3079,7 +3255,7 @@ pub fn reconnect_nodes<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a,
                                // No commitment_signed so get_event_msg's assert(len == 1) passes
                                node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &bs_revoke_and_ack);
                                assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
-                               check_added_monitors!(node_a, 1);
+                               check_added_monitors!(node_a, if pending_responding_commitment_signed_dup_monitor.1 { 0 } else { 1 });
                        }
                } else {
                        assert!(chan_msgs.2.is_none());