Upgrade rust-bitcoin to 0.31
[rust-lightning] / lightning / src / ln / functional_test_utils.rs
index d7d183676110f7fb3ccf5e30e36ea4814fa01140..ca74db6955fc0bba1a1082916ff8ec7eb421baca 100644 (file)
@@ -15,7 +15,7 @@ use crate::chain::channelmonitor::ChannelMonitor;
 use crate::chain::transaction::OutPoint;
 use crate::events::{ClaimedHTLC, ClosureReason, Event, HTLCDestination, MessageSendEvent, MessageSendEventsProvider, PathFailure, PaymentPurpose, PaymentFailureReason};
 use crate::events::bump_transaction::{BumpTransactionEvent, BumpTransactionEventHandler, Wallet, WalletSource};
-use crate::ln::{ChannelId, PaymentPreimage, PaymentHash, PaymentSecret};
+use crate::ln::types::{ChannelId, PaymentPreimage, PaymentHash, PaymentSecret};
 use crate::ln::channelmanager::{AChannelManager, ChainParameters, ChannelManager, ChannelManagerReadArgs, RAACommitmentOrder, PaymentSendFailure, RecipientOnionFields, PaymentId, MIN_CLTV_EXPIRY_DELTA};
 use crate::ln::features::InitFeatures;
 use crate::ln::msgs;
@@ -35,15 +35,17 @@ use crate::util::test_utils;
 use crate::util::test_utils::{panicking, TestChainMonitor, TestScorer, TestKeysInterface};
 use crate::util::ser::{ReadableArgs, Writeable};
 
+use bitcoin::amount::Amount;
 use bitcoin::blockdata::block::{Block, Header, Version};
 use bitcoin::blockdata::locktime::absolute::LockTime;
 use bitcoin::blockdata::transaction::{Transaction, TxIn, TxOut};
 use bitcoin::hash_types::{BlockHash, TxMerkleNode};
 use bitcoin::hashes::sha256::Hash as Sha256;
 use bitcoin::hashes::Hash as _;
-use bitcoin::network::constants::Network;
+use bitcoin::network::Network;
 use bitcoin::pow::CompactTarget;
 use bitcoin::secp256k1::{PublicKey, SecretKey};
+use bitcoin::transaction;
 
 use alloc::rc::Rc;
 use core::cell::RefCell;
@@ -95,7 +97,7 @@ pub fn mine_transaction_without_consistency_checks<'a, 'b, 'c, 'd>(node: &'a Nod
                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: LockTime::ZERO, input: Vec::new(), output: Vec::new() });
+               block.txdata.push(Transaction { version: transaction::Version(0), lock_time: LockTime::ZERO, input: Vec::new(), output: Vec::new() });
        }
        block.txdata.push((*tx).clone());
        do_connect_block_without_consistency_checks(node, block, false);
@@ -113,7 +115,7 @@ pub fn confirm_transactions_at<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, txn:
        }
        let mut 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
-               txdata.push(Transaction { version: 0, lock_time: LockTime::ZERO, input: Vec::new(), output: Vec::new() });
+               txdata.push(Transaction { version: transaction::Version(0), lock_time: LockTime::ZERO, input: Vec::new(), output: Vec::new() });
        }
        for tx in txn {
                txdata.push((*tx).clone());
@@ -415,6 +417,7 @@ type TestOnionMessenger<'chan_man, 'node_cfg, 'chan_mon_cfg> = OnionMessenger<
        DedicatedEntropy,
        &'node_cfg test_utils::TestKeysInterface,
        &'chan_mon_cfg test_utils::TestLogger,
+       &'chan_man TestChannelManager<'node_cfg, 'chan_mon_cfg>,
        &'node_cfg test_utils::TestMessageRouter<'chan_mon_cfg>,
        &'chan_man TestChannelManager<'node_cfg, 'chan_mon_cfg>,
        IgnoringMessageHandler,
@@ -487,16 +490,38 @@ impl<'a, 'b, 'c> Node<'a, 'b, 'c> {
        /// `release_commitment_secret` are affected by this setting.
        #[cfg(test)]
        pub fn set_channel_signer_available(&self, peer_id: &PublicKey, chan_id: &ChannelId, available: bool) {
+               use crate::sign::ChannelSigner;
+               log_debug!(self.logger, "Setting channel signer for {} as available={}", chan_id, available);
+
                let per_peer_state = self.node.per_peer_state.read().unwrap();
                let chan_lock = per_peer_state.get(peer_id).unwrap().lock().unwrap();
-               let signer = (|| {
-                       match chan_lock.channel_by_id.get(chan_id) {
-                               Some(phase) => phase.context().get_signer(),
-                               None => panic!("Couldn't find a channel with id {}", chan_id),
+
+               let mut channel_keys_id = None;
+               if let Some(chan) = chan_lock.channel_by_id.get(chan_id).map(|phase| phase.context()) {
+                       chan.get_signer().as_ecdsa().unwrap().set_available(available);
+                       channel_keys_id = Some(chan.channel_keys_id);
+               }
+
+               let mut monitor = None;
+               for (funding_txo, channel_id) in self.chain_monitor.chain_monitor.list_monitors() {
+                       if *chan_id == channel_id {
+                               monitor = self.chain_monitor.chain_monitor.get_monitor(funding_txo).ok();
                        }
-               })();
-               log_debug!(self.logger, "Setting channel signer for {} as available={}", chan_id, available);
-               signer.as_ecdsa().unwrap().set_available(available);
+               }
+               if let Some(monitor) = monitor {
+                       monitor.do_signer_call(|signer| {
+                               channel_keys_id = channel_keys_id.or(Some(signer.inner.channel_keys_id()));
+                               signer.set_available(available)
+                       });
+               }
+
+               if available {
+                       self.keys_manager.unavailable_signers.lock().unwrap()
+                               .remove(channel_keys_id.as_ref().unwrap());
+               } else {
+                       self.keys_manager.unavailable_signers.lock().unwrap()
+                               .insert(channel_keys_id.unwrap());
+               }
        }
 }
 
@@ -618,7 +643,7 @@ impl<'a, 'b, 'c> Drop for Node<'a, 'b, 'c> {
                        // Before using all the new monitors to check the watch outpoints, use the full set of
                        // them to ensure we can write and reload our ChannelManager.
                        {
-                               let mut channel_monitors = HashMap::new();
+                               let mut channel_monitors = new_hash_map();
                                for monitor in deserialized_monitors.iter_mut() {
                                        channel_monitors.insert(monitor.get_funding_txo().0, monitor);
                                }
@@ -1049,7 +1074,7 @@ pub fn _reload_node<'a, 'b, 'c>(node: &'a Node<'a, 'b, 'c>, default_config: User
 
        let mut node_read = &chanman_encoded[..];
        let (_, node_deserialized) = {
-               let mut channel_monitors = HashMap::new();
+               let mut channel_monitors = new_hash_map();
                for monitor in monitors_read.iter_mut() {
                        assert!(channel_monitors.insert(monitor.get_funding_txo().0, monitor).is_none());
                }
@@ -1132,8 +1157,8 @@ fn internal_create_funding_transaction<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>,
                                Vec::new()
                        };
 
-                       let tx = Transaction { version: chan_id as i32, lock_time: LockTime::ZERO, input, output: vec![TxOut {
-                               value: *channel_value_satoshis, script_pubkey: output_script.clone(),
+                       let tx = Transaction { version: transaction::Version(chan_id as i32), lock_time: LockTime::ZERO, input, output: vec![TxOut {
+                               value: Amount::from_sat(*channel_value_satoshis), script_pubkey: output_script.clone(),
                        }]};
                        let funding_outpoint = OutPoint { txid: tx.txid(), index: 0 };
                        (*temporary_channel_id, tx, funding_outpoint)
@@ -1453,15 +1478,15 @@ pub fn update_nodes_with_chan_announce<'a, 'b, 'c, 'd>(nodes: &'a Vec<Node<'b, '
 
 pub fn do_check_spends<F: Fn(&bitcoin::blockdata::transaction::OutPoint) -> Option<TxOut>>(tx: &Transaction, get_output: F) {
        for outp in tx.output.iter() {
-               assert!(outp.value >= outp.script_pubkey.dust_value().to_sat(), "Spending tx output didn't meet dust limit");
+               assert!(outp.value >= outp.script_pubkey.dust_value(), "Spending tx output didn't meet dust limit");
        }
        let mut total_value_in = 0;
        for input in tx.input.iter() {
-               total_value_in += get_output(&input.previous_output).unwrap().value;
+               total_value_in += get_output(&input.previous_output).unwrap().value.to_sat();
        }
        let mut total_value_out = 0;
        for output in tx.output.iter() {
-               total_value_out += output.value;
+               total_value_out += output.value.to_sat();
        }
        let min_fee = (tx.weight().to_wu() as u64 + 3) / 4; // One sat per vbyte (ie per weight/4, rounded up)
        // Input amount - output amount = fee, so check that out + min_fee is smaller than input
@@ -1475,7 +1500,7 @@ macro_rules! check_spends {
                {
                        $(
                        for outp in $spends_txn.output.iter() {
-                               assert!(outp.value >= outp.script_pubkey.dust_value().to_sat(), "Input tx output didn't meet dust limit");
+                               assert!(outp.value >= outp.script_pubkey.dust_value(), "Input tx output didn't meet dust limit");
                        }
                        )*
                        let get_output = |out_point: &bitcoin::blockdata::transaction::OutPoint| {
@@ -1531,11 +1556,29 @@ macro_rules! check_warn_msg {
        }}
 }
 
+/// Checks if at least one peer is connected.
+fn is_any_peer_connected(node: &Node) -> bool {
+       let peer_state = node.node.per_peer_state.read().unwrap();
+       for (_, peer_mutex) in peer_state.iter() {
+               let peer = peer_mutex.lock().unwrap();
+               if peer.is_connected { return true; }
+       }
+       false
+}
+
 /// Check that a channel's closing channel update has been broadcasted, and optionally
 /// check whether an error message event has occurred.
 pub fn check_closed_broadcast(node: &Node, num_channels: usize, with_error_msg: bool) -> Vec<msgs::ErrorMessage> {
+       let mut dummy_connected = false;
+       if !is_any_peer_connected(node) {
+               connect_dummy_node(&node);
+               dummy_connected = true;
+       }
        let msg_events = node.node.get_and_clear_pending_msg_events();
        assert_eq!(msg_events.len(), if with_error_msg { num_channels * 2 } else { num_channels });
+       if dummy_connected {
+               disconnect_dummy_node(&node);
+       }
        msg_events.into_iter().filter_map(|msg_event| {
                match msg_event {
                        MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
@@ -1805,14 +1848,9 @@ macro_rules! expect_htlc_handling_failed_destinations {
 /// there are any [`Event::HTLCHandlingFailed`] events their [`HTLCDestination`] is included in the
 /// `expected_failures` set.
 pub fn expect_pending_htlcs_forwardable_conditions(events: Vec<Event>, expected_failures: &[HTLCDestination]) {
-       match events[0] {
-               Event::PendingHTLCsForwardable { .. } => { },
-               _ => panic!("Unexpected event {:?}", events),
-       };
-
        let count = expected_failures.len() + 1;
        assert_eq!(events.len(), count);
-
+       assert!(events.iter().find(|event| matches!(event, Event::PendingHTLCsForwardable { .. })).is_some());
        if expected_failures.len() > 0 {
                expect_htlc_handling_failed_destinations!(events, expected_failures)
        }
@@ -2029,7 +2067,7 @@ 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, route_params: &RouteParameters) -> Result<Route, msgs::LightningError> {
        let scorer = TestScorer::new();
-       let keys_manager = TestKeysInterface::new(&[0u8; 32], bitcoin::network::constants::Network::Testnet);
+       let keys_manager = TestKeysInterface::new(&[0u8; 32], Network::Testnet);
        let random_seed_bytes = keys_manager.get_secure_random_bytes();
        router::get_route(
                &send_node.node.get_our_node_id(), route_params, &send_node.network_graph.read_only(),
@@ -2041,7 +2079,7 @@ pub fn get_route(send_node: &Node, route_params: &RouteParameters) -> Result<Rou
 /// Like `get_route` above, but adds a random CLTV offset to the final hop.
 pub fn find_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 keys_manager = TestKeysInterface::new(&[0u8; 32], Network::Testnet);
        let random_seed_bytes = keys_manager.get_secure_random_bytes();
        router::find_route(
                &send_node.node.get_our_node_id(), route_params, &send_node.network_graph,
@@ -2093,7 +2131,15 @@ pub fn check_payment_claimable(
                        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, .. } => {
+                               PaymentPurpose::Bolt11InvoicePayment { payment_preimage, payment_secret, .. } => {
+                                       assert_eq!(&expected_payment_preimage, payment_preimage);
+                                       assert_eq!(expected_payment_secret, *payment_secret);
+                               },
+                               PaymentPurpose::Bolt12OfferPayment { payment_preimage, payment_secret, .. } => {
+                                       assert_eq!(&expected_payment_preimage, payment_preimage);
+                                       assert_eq!(expected_payment_secret, *payment_secret);
+                               },
+                               PaymentPurpose::Bolt12RefundPayment { payment_preimage, payment_secret, .. } => {
                                        assert_eq!(&expected_payment_preimage, payment_preimage);
                                        assert_eq!(expected_payment_secret, *payment_secret);
                                },
@@ -2201,31 +2247,60 @@ macro_rules! expect_payment_path_successful {
        }
 }
 
+/// Returns the total fee earned by this HTLC forward, in msat.
 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>,
        expected_extra_fees_msat: Option<u64>, upstream_force_closed: bool,
-       downstream_force_closed: bool
-) {
+       downstream_force_closed: bool, allow_1_msat_fee_overpay: bool,
+) -> Option<u64> {
        match event {
                Event::PaymentForwarded {
-                       total_fee_earned_msat, prev_channel_id, claim_from_onchain_tx, next_channel_id,
-                       outbound_amount_forwarded_msat: _, skimmed_fee_msat
+                       prev_channel_id, next_channel_id, prev_user_channel_id, next_user_channel_id,
+                       total_fee_earned_msat, skimmed_fee_msat, claim_from_onchain_tx, ..
                } => {
-                       assert_eq!(total_fee_earned_msat, expected_fee);
+                       if allow_1_msat_fee_overpay {
+                               // Aggregating fees for blinded paths may result in a rounding error, causing slight
+                               // overpayment in fees.
+                               let actual_fee = total_fee_earned_msat.unwrap();
+                               let expected_fee = expected_fee.unwrap();
+                               assert!(actual_fee == expected_fee || actual_fee == expected_fee + 1);
+                       } else {
+                               assert_eq!(total_fee_earned_msat, expected_fee);
+                       }
 
                        // Check that the (knowingly) withheld amount is always less or equal to the expected
                        // overpaid amount.
                        assert!(skimmed_fee_msat == expected_extra_fees_msat);
                        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()));
+                               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() &&
+                                       x.user_channel_id == prev_user_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()));
+                               // As documented, `next_user_channel_id` will only be `Some` if we didn't settle via an
+                               // onchain transaction, just as the `total_fee_earned_msat` field. Rather than
+                               // introducing yet another variable, we use the latter's state as a flag to detect
+                               // this and only check if it's `Some`.
+                               if total_fee_earned_msat.is_none() {
+                                       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()
+                                       ));
+                               } else {
+                                       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() &&
+                                               x.user_channel_id == next_user_channel_id.unwrap()
+                                       ));
+                               }
                        }
                        assert_eq!(claim_from_onchain_tx, downstream_force_closed);
+                       total_fee_earned_msat
                },
                _ => panic!("Unexpected event"),
        }
@@ -2238,7 +2313,7 @@ macro_rules! expect_payment_forwarded {
                assert_eq!(events.len(), 1);
                $crate::ln::functional_test_utils::expect_payment_forwarded(
                        events.pop().unwrap(), &$node, &$prev_node, &$next_node, $expected_fee, None,
-                       $upstream_force_closed, $downstream_force_closed
+                       $upstream_force_closed, $downstream_force_closed, false
                );
        }
 }
@@ -2450,7 +2525,70 @@ fn fail_payment_along_path<'a, 'b, 'c>(expected_path: &[&Node<'a, 'b, 'c>]) {
        }
 }
 
-pub fn do_pass_along_path<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_path: &[&Node<'a, 'b, 'c>], recv_value: u64, our_payment_hash: PaymentHash, our_payment_secret: Option<PaymentSecret>, ev: MessageSendEvent, payment_claimable_expected: bool, clear_recipient_events: bool, expected_preimage: Option<PaymentPreimage>, is_probe: bool) -> Option<Event> {
+pub struct PassAlongPathArgs<'a, 'b, 'c, 'd> {
+       pub origin_node: &'a Node<'b, 'c, 'd>,
+       pub expected_path: &'a [&'a Node<'b, 'c, 'd>],
+       pub recv_value: u64,
+       pub payment_hash: PaymentHash,
+       pub payment_secret: Option<PaymentSecret>,
+       pub event: MessageSendEvent,
+       pub payment_claimable_expected: bool,
+       pub clear_recipient_events: bool,
+       pub expected_preimage: Option<PaymentPreimage>,
+       pub is_probe: bool,
+       pub custom_tlvs: Vec<(u64, Vec<u8>)>,
+       pub payment_metadata: Option<Vec<u8>>,
+}
+
+impl<'a, 'b, 'c, 'd> PassAlongPathArgs<'a, 'b, 'c, 'd> {
+       pub fn new(
+               origin_node: &'a Node<'b, 'c, 'd>, expected_path: &'a [&'a Node<'b, 'c, 'd>], recv_value: u64,
+               payment_hash: PaymentHash, event: MessageSendEvent,
+       ) -> Self {
+               Self {
+                       origin_node, expected_path, recv_value, payment_hash, payment_secret: None, event,
+                       payment_claimable_expected: true, clear_recipient_events: true, expected_preimage: None,
+                       is_probe: false, custom_tlvs: Vec::new(), payment_metadata: None,
+               }
+       }
+       pub fn without_clearing_recipient_events(mut self) -> Self {
+               self.clear_recipient_events = false;
+               self
+       }
+       pub fn is_probe(mut self) -> Self {
+               self.payment_claimable_expected = false;
+               self.is_probe = true;
+               self
+       }
+       pub fn without_claimable_event(mut self) -> Self {
+               self.payment_claimable_expected = false;
+               self
+       }
+       pub fn with_payment_secret(mut self, payment_secret: PaymentSecret) -> Self {
+               self.payment_secret = Some(payment_secret);
+               self
+       }
+       pub fn with_payment_preimage(mut self, payment_preimage: PaymentPreimage) -> Self {
+               self.expected_preimage = Some(payment_preimage);
+               self
+       }
+       pub fn with_custom_tlvs(mut self, custom_tlvs: Vec<(u64, Vec<u8>)>) -> Self {
+               self.custom_tlvs = custom_tlvs;
+               self
+       }
+       pub fn with_payment_metadata(mut self, payment_metadata: Vec<u8>) -> Self {
+               self.payment_metadata = Some(payment_metadata);
+               self
+       }
+}
+
+pub fn do_pass_along_path<'a, 'b, 'c>(args: PassAlongPathArgs) -> Option<Event> {
+       let PassAlongPathArgs {
+               origin_node, expected_path, recv_value, payment_hash: our_payment_hash,
+               payment_secret: our_payment_secret, event: ev, payment_claimable_expected,
+               clear_recipient_events, expected_preimage, is_probe, custom_tlvs, payment_metadata,
+       } = args;
+
        let mut payment_event = SendEvent::from_event(ev);
        let mut prev_node = origin_node;
        let mut event = None;
@@ -2481,8 +2619,20 @@ pub fn do_pass_along_path<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_p
                                                assert_eq!(our_payment_hash, *payment_hash);
                                                assert_eq!(node.node.get_our_node_id(), receiver_node_id.unwrap());
                                                assert!(onion_fields.is_some());
+                                               assert_eq!(onion_fields.as_ref().unwrap().custom_tlvs, custom_tlvs);
+                                               assert_eq!(onion_fields.as_ref().unwrap().payment_metadata, payment_metadata);
                                                match &purpose {
-                                                       PaymentPurpose::InvoicePayment { payment_preimage, payment_secret, .. } => {
+                                                       PaymentPurpose::Bolt11InvoicePayment { payment_preimage, payment_secret, .. } => {
+                                                               assert_eq!(expected_preimage, *payment_preimage);
+                                                               assert_eq!(our_payment_secret.unwrap(), *payment_secret);
+                                                               assert_eq!(Some(*payment_secret), onion_fields.as_ref().unwrap().payment_secret);
+                                                       },
+                                                       PaymentPurpose::Bolt12OfferPayment { payment_preimage, payment_secret, .. } => {
+                                                               assert_eq!(expected_preimage, *payment_preimage);
+                                                               assert_eq!(our_payment_secret.unwrap(), *payment_secret);
+                                                               assert_eq!(Some(*payment_secret), onion_fields.as_ref().unwrap().payment_secret);
+                                                       },
+                                                       PaymentPurpose::Bolt12RefundPayment { payment_preimage, payment_secret, .. } => {
                                                                assert_eq!(expected_preimage, *payment_preimage);
                                                                assert_eq!(our_payment_secret.unwrap(), *payment_secret);
                                                                assert_eq!(Some(*payment_secret), onion_fields.as_ref().unwrap().payment_secret);
@@ -2517,7 +2667,17 @@ pub fn do_pass_along_path<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_p
 }
 
 pub fn pass_along_path<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_path: &[&Node<'a, 'b, 'c>], recv_value: u64, our_payment_hash: PaymentHash, our_payment_secret: Option<PaymentSecret>, ev: MessageSendEvent, payment_claimable_expected: bool, expected_preimage: Option<PaymentPreimage>) -> Option<Event> {
-       do_pass_along_path(origin_node, expected_path, recv_value, our_payment_hash, our_payment_secret, ev, payment_claimable_expected, true, expected_preimage, false)
+       let mut args = PassAlongPathArgs::new(origin_node, expected_path, recv_value, our_payment_hash, ev);
+       if !payment_claimable_expected {
+               args = args.without_claimable_event();
+       }
+       if let Some(payment_secret) = our_payment_secret {
+               args = args.with_payment_secret(payment_secret);
+       }
+       if let Some(payment_preimage) = expected_preimage {
+               args = args.with_payment_preimage(payment_preimage);
+       }
+       do_pass_along_path(args)
 }
 
 pub fn send_probe_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&[&Node<'a, 'b, 'c>]]) {
@@ -2529,7 +2689,10 @@ pub fn send_probe_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expect
        for path in expected_route.iter() {
                let ev = remove_first_msg_event_to_node(&path[0].node.get_our_node_id(), &mut events);
 
-               do_pass_along_path(origin_node, path, 0, PaymentHash([0_u8; 32]), None, ev, false, false, None, true);
+               do_pass_along_path(PassAlongPathArgs::new(origin_node, path, 0, PaymentHash([0_u8; 32]), ev)
+                       .is_probe()
+                       .without_clearing_recipient_events());
+
                let nodes_to_fail_payment: Vec<_> = vec![origin_node].into_iter().chain(path.iter().cloned()).collect();
 
                fail_payment_along_path(nodes_to_fail_payment.as_slice());
@@ -2576,6 +2739,14 @@ pub struct ClaimAlongRouteArgs<'a, 'b, 'c, 'd> {
        pub expected_min_htlc_overpay: Vec<u32>,
        pub skip_last: bool,
        pub payment_preimage: PaymentPreimage,
+       // Allow forwarding nodes to have taken 1 msat more fee than expected based on the downstream
+       // fulfill amount.
+       //
+       // Necessary because our test utils calculate the expected fee for an intermediate node based on
+       // the amount was claimed in their downstream peer's fulfill, but blinded intermediate nodes
+       // calculate their fee based on the inbound amount from their upstream peer, causing a difference
+       // in rounding.
+       pub allow_1_msat_fee_overpay: bool,
 }
 
 impl<'a, 'b, 'c, 'd> ClaimAlongRouteArgs<'a, 'b, 'c, 'd> {
@@ -2586,6 +2757,7 @@ impl<'a, 'b, 'c, 'd> ClaimAlongRouteArgs<'a, 'b, 'c, 'd> {
                Self {
                        origin_node, expected_paths, expected_extra_fees: vec![0; expected_paths.len()],
                        expected_min_htlc_overpay: vec![0; expected_paths.len()], skip_last: false, payment_preimage,
+                       allow_1_msat_fee_overpay: false,
                }
        }
        pub fn skip_last(mut self, skip_last: bool) -> Self {
@@ -2600,34 +2772,41 @@ impl<'a, 'b, 'c, 'd> ClaimAlongRouteArgs<'a, 'b, 'c, 'd> {
                self.expected_min_htlc_overpay = extra_fees;
                self
        }
+       pub fn allow_1_msat_fee_overpay(mut self) -> Self {
+               self.allow_1_msat_fee_overpay = true;
+               self
+       }
 }
 
 pub fn pass_claimed_payment_along_route<'a, 'b, 'c, 'd>(args: ClaimAlongRouteArgs) -> u64 {
        let ClaimAlongRouteArgs {
                origin_node, expected_paths, expected_extra_fees, expected_min_htlc_overpay, skip_last,
-               payment_preimage: our_payment_preimage
+               payment_preimage: our_payment_preimage, allow_1_msat_fee_overpay,
        } = args;
        let claim_event = expected_paths[0].last().unwrap().node.get_and_clear_pending_events();
        assert_eq!(claim_event.len(), 1);
+       #[allow(unused)]
+       let mut fwd_amt_msat = 0;
        match claim_event[0] {
                Event::PaymentClaimed {
-                       purpose: PaymentPurpose::SpontaneousPayment(preimage),
+                       purpose: PaymentPurpose::SpontaneousPayment(preimage)
+                               | PaymentPurpose::Bolt11InvoicePayment { payment_preimage: Some(preimage), .. }
+                               | PaymentPurpose::Bolt12OfferPayment { payment_preimage: Some(preimage), .. }
+                               | PaymentPurpose::Bolt12RefundPayment { payment_preimage: Some(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));
+                       fwd_amt_msat = amount_msat;
                },
                Event::PaymentClaimed {
-                       purpose: PaymentPurpose::InvoicePayment { .. },
+                       purpose: PaymentPurpose::Bolt11InvoicePayment { .. }
+                               | PaymentPurpose::Bolt12OfferPayment { .. }
+                               | PaymentPurpose::Bolt12RefundPayment { .. },
                        payment_hash,
                        amount_msat,
                        ref htlcs,
@@ -2637,6 +2816,7 @@ pub fn pass_claimed_payment_along_route<'a, 'b, 'c, 'd>(args: ClaimAlongRouteArg
                        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));
+                       fwd_amt_msat = amount_msat;
                }
                _ => panic!(),
        }
@@ -2668,8 +2848,12 @@ pub fn pass_claimed_payment_along_route<'a, 'b, 'c, 'd>(args: ClaimAlongRouteArg
                per_path_msgs.push(msgs_from_ev!(&events[0]));
        } else {
                for expected_path in expected_paths.iter() {
-                       // For MPP payments, we always want the message to the first node in the path.
-                       let ev = remove_first_msg_event_to_node(&expected_path[0].node.get_our_node_id(), &mut events);
+                       // For MPP payments, we want the fulfill message from the payee to the penultimate hop in the
+                       // path.
+                       let penultimate_hop_node_id = expected_path.iter().rev().skip(1).next()
+                               .map(|n| n.node.get_our_node_id())
+                               .unwrap_or(origin_node.node.get_our_node_id());
+                       let ev = remove_first_msg_event_to_node(&penultimate_hop_node_id, &mut events);
                        per_path_msgs.push(msgs_from_ev!(&ev));
                }
        }
@@ -2693,15 +2877,20 @@ pub fn pass_claimed_payment_along_route<'a, 'b, 'c, 'd>(args: ClaimAlongRouteArg
                                {
                                        $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
                                        let mut fee = {
-                                               let per_peer_state = $node.node.per_peer_state.read().unwrap();
-                                               let peer_state = per_peer_state.get(&$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() {
-                                                       prev_config.forwarding_fee_base_msat
-                                               } else {
-                                                       channel.context().config().forwarding_fee_base_msat
-                                               }
+                                               let (base_fee, prop_fee) = {
+                                                       let per_peer_state = $node.node.per_peer_state.read().unwrap();
+                                                       let peer_state = per_peer_state.get(&$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() {
+                                                               (prev_config.forwarding_fee_base_msat as u64,
+                                                                prev_config.forwarding_fee_proportional_millionths as u64)
+                                                       } else {
+                                                               (channel.context().config().forwarding_fee_base_msat as u64,
+                                                                channel.context().config().forwarding_fee_proportional_millionths as u64)
+                                                       }
+                                               };
+                                               ((fwd_amt_msat * prop_fee / 1_000_000) + base_fee) as u32
                                        };
 
                                        let mut expected_extra_fee = None;
@@ -2712,9 +2901,10 @@ pub fn pass_claimed_payment_along_route<'a, 'b, 'c, 'd>(args: ClaimAlongRouteArg
                                        }
                                        let mut events = $node.node.get_and_clear_pending_events();
                                        assert_eq!(events.len(), 1);
-                                       expect_payment_forwarded(events.pop().unwrap(), *$node, $next_node, $prev_node,
-                                               Some(fee as u64), expected_extra_fee, false, false);
-                                       expected_total_fee_msat += fee as u64;
+                                       let actual_fee = expect_payment_forwarded(events.pop().unwrap(), *$node, $next_node, $prev_node,
+                                               Some(fee as u64), expected_extra_fee, false, false, allow_1_msat_fee_overpay);
+                                       expected_total_fee_msat += actual_fee.unwrap();
+                                       fwd_amt_msat += actual_fee.unwrap();
                                        check_added_monitors!($node, 1);
                                        let new_next_msgs = if $new_msgs {
                                                let events = $node.node.get_and_clear_pending_msg_events();
@@ -2980,7 +3170,7 @@ pub fn create_node_cfgs_with_persisters<'a>(node_count: usize, chanmon_cfgs: &'a
                        tx_broadcaster: &chanmon_cfgs[i].tx_broadcaster,
                        fee_estimator: &chanmon_cfgs[i].fee_estimator,
                        router: test_utils::TestRouter::new(network_graph.clone(), &chanmon_cfgs[i].logger, &chanmon_cfgs[i].scorer),
-                       message_router: test_utils::TestMessageRouter::new(network_graph.clone()),
+                       message_router: test_utils::TestMessageRouter::new(network_graph.clone(), &chanmon_cfgs[i].keys_manager),
                        chain_monitor,
                        keys_manager: &chanmon_cfgs[i].keys_manager,
                        node_seed: seed,
@@ -3036,8 +3226,8 @@ pub fn create_network<'a, 'b: 'a, 'c: 'b>(node_count: usize, cfgs: &'b Vec<NodeC
        for i in 0..node_count {
                let dedicated_entropy = DedicatedEntropy(RandomBytes::new([i as u8; 32]));
                let onion_messenger = OnionMessenger::new(
-                       dedicated_entropy, cfgs[i].keys_manager, cfgs[i].logger, &cfgs[i].message_router,
-                       &chan_mgrs[i], IgnoringMessageHandler {},
+                       dedicated_entropy, cfgs[i].keys_manager, cfgs[i].logger, &chan_mgrs[i],
+                       &cfgs[i].message_router, &chan_mgrs[i], IgnoringMessageHandler {},
                );
                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()));
@@ -3085,6 +3275,28 @@ pub fn create_network<'a, 'b: 'a, 'c: 'b>(node_count: usize, cfgs: &'b Vec<NodeC
        nodes
 }
 
+pub fn connect_dummy_node<'a, 'b: 'a, 'c: 'b>(node: &Node<'a, 'b, 'c>) {
+       let node_id_dummy = PublicKey::from_slice(&[2; 33]).unwrap();
+
+       let mut dummy_init_features = InitFeatures::empty();
+       dummy_init_features.set_static_remote_key_required();
+
+       let init_dummy = msgs::Init {
+               features: dummy_init_features,
+               networks: None,
+               remote_network_address: None
+       };
+
+       node.node.peer_connected(&node_id_dummy, &init_dummy, true).unwrap();
+       node.onion_messenger.peer_connected(&node_id_dummy, &init_dummy, true).unwrap();
+}
+
+pub fn disconnect_dummy_node<'a, 'b: 'a, 'c: 'b>(node: &Node<'a, 'b, 'c>) {
+       let node_id_dummy = PublicKey::from_slice(&[2; 33]).unwrap();
+       node.node.peer_disconnected(&node_id_dummy);
+       node.onion_messenger.peer_disconnected(&node_id_dummy);
+}
+
 // Note that the following only works for CLTV values up to 128
 pub const ACCEPTED_HTLC_SCRIPT_WEIGHT: usize = 137; // Here we have a diff due to HTLC CLTV expiry being < 2^15 in test
 pub const ACCEPTED_HTLC_SCRIPT_WEIGHT_ANCHORS: usize = 140; // Here we have a diff due to HTLC CLTV expiry being < 2^15 in test
@@ -3104,7 +3316,7 @@ pub enum HTLCType { NONE, TIMEOUT, SUCCESS }
 /// also fail.
 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();
+       let mut txn_seen = new_hash_set();
        node_txn.retain(|tx| txn_seen.insert(tx.txid()));
        assert!(node_txn.len() >= if commitment_tx.is_some() { 0 } else { 1 } + if has_htlc_tx == HTLCType::NONE { 0 } else { 1 });
 
@@ -3169,7 +3381,7 @@ pub fn test_revoked_htlc_claim_txn_broadcast<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>
 
 pub fn check_preimage_claim<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, prev_txn: &Vec<Transaction>) -> Vec<Transaction>  {
        let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
-       let mut txn_seen = HashSet::new();
+       let mut txn_seen = new_hash_set();
        node_txn.retain(|tx| txn_seen.insert(tx.txid()));
 
        let mut found_prev = false;
@@ -3196,15 +3408,21 @@ pub fn check_preimage_claim<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, prev_txn: &Vec<
 }
 
 pub fn handle_announce_close_broadcast_events<'a, 'b, 'c>(nodes: &Vec<Node<'a, 'b, 'c>>, a: usize, b: usize, needs_err_handle: bool, expected_error: &str)  {
+       let mut dummy_connected = false;
+       if !is_any_peer_connected(&nodes[a]) {
+               connect_dummy_node(&nodes[a]);
+               dummy_connected = true
+       }
+
        let events_1 = nodes[a].node.get_and_clear_pending_msg_events();
        assert_eq!(events_1.len(), 2);
-       let as_update = match events_1[0] {
+       let as_update = match events_1[1] {
                MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
                        msg.clone()
                },
                _ => panic!("Unexpected event"),
        };
-       match events_1[1] {
+       match events_1[0] {
                MessageSendEvent::HandleError { node_id, action: msgs::ErrorAction::SendErrorMessage { ref msg } } => {
                        assert_eq!(node_id, nodes[b].node.get_our_node_id());
                        assert_eq!(msg.data, expected_error);
@@ -3221,17 +3439,24 @@ pub fn handle_announce_close_broadcast_events<'a, 'b, 'c>(nodes: &Vec<Node<'a, '
                },
                _ => panic!("Unexpected event"),
        }
-
+       if dummy_connected {
+               disconnect_dummy_node(&nodes[a]);
+               dummy_connected = false;
+       }
+       if !is_any_peer_connected(&nodes[b]) {
+               connect_dummy_node(&nodes[b]);
+               dummy_connected = true;
+       }
        let events_2 = nodes[b].node.get_and_clear_pending_msg_events();
        assert_eq!(events_2.len(), if needs_err_handle { 1 } else { 2 });
-       let bs_update = match events_2[0] {
+       let bs_update = match events_2.last().unwrap() {
                MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
                        msg.clone()
                },
                _ => panic!("Unexpected event"),
        };
        if !needs_err_handle {
-               match events_2[1] {
+               match events_2[0] {
                        MessageSendEvent::HandleError { node_id, action: msgs::ErrorAction::SendErrorMessage { ref msg } } => {
                                assert_eq!(node_id, nodes[a].node.get_our_node_id());
                                assert_eq!(msg.data, expected_error);
@@ -3243,7 +3468,9 @@ pub fn handle_announce_close_broadcast_events<'a, 'b, 'c>(nodes: &Vec<Node<'a, '
                        _ => panic!("Unexpected event"),
                }
        }
-
+       if dummy_connected {
+               disconnect_dummy_node(&nodes[b]);
+       }
        for node in nodes {
                node.gossip_sync.handle_channel_update(&as_update).unwrap();
                node.gossip_sync.handle_channel_update(&bs_update).unwrap();
@@ -3269,7 +3496,7 @@ macro_rules! get_channel_value_stat {
 macro_rules! get_chan_reestablish_msgs {
        ($src_node: expr, $dst_node: expr) => {
                {
-                       let mut announcements = $crate::prelude::HashSet::new();
+                       let mut announcements = $crate::prelude::new_hash_set();
                        let mut res = Vec::with_capacity(1);
                        for msg in $src_node.node.get_and_clear_pending_msg_events() {
                                if let MessageSendEvent::SendChannelReestablish { ref node_id, ref msg } = msg {
@@ -3628,7 +3855,7 @@ pub fn create_batch_channel_funding<'a, 'b, 'c>(
                                assert_eq!(channel_value_satoshis, event_channel_value_satoshis);
                                assert_eq!(user_channel_id, event_user_channel_id);
                                tx_outs.push(TxOut {
-                                       value: *channel_value_satoshis, script_pubkey: output_script.clone(),
+                                       value: Amount::from_sat(*channel_value_satoshis), script_pubkey: output_script.clone(),
                                });
                        },
                        _ => panic!("Unexpected event"),
@@ -3638,7 +3865,7 @@ pub fn create_batch_channel_funding<'a, 'b, 'c>(
 
        // Compose the batch funding transaction and give it to the ChannelManager.
        let tx = Transaction {
-               version: 2,
+               version: transaction::Version::TWO,
                lock_time: LockTime::ZERO,
                input: Vec::new(),
                output: tx_outs,