1 // This file is Copyright its original authors, visible in version control
4 // This file is licensed under the Apache License, Version 2.0 <LICENSE-APACHE
5 // or http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
6 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your option.
7 // You may not use this file except in accordance with one or both of these
10 //! A bunch of useful utilities for building networks of nodes and exchanging messages between
11 //! nodes for functional tests.
14 use chain::chaininterface;
15 use chain::transaction::OutPoint;
16 use ln::channelmanager::{ChannelManager, ChannelManagerReadArgs, RAACommitmentOrder, PaymentPreimage, PaymentHash, PaymentSecret, PaymentSendFailure};
17 use ln::channelmonitor::{ChannelMonitor, ManyChannelMonitor};
18 use routing::router::{Route, get_route};
19 use routing::network_graph::{NetGraphMsgHandler, NetworkGraph};
20 use ln::features::InitFeatures;
22 use ln::msgs::{ChannelMessageHandler,RoutingMessageHandler};
23 use util::enforcing_trait_impls::EnforcingChannelKeys;
25 use util::test_utils::TestChannelMonitor;
26 use util::events::{Event, EventsProvider, MessageSendEvent, MessageSendEventsProvider};
27 use util::errors::APIError;
28 use util::config::UserConfig;
29 use util::ser::{ReadableArgs, Writeable, Readable};
31 use bitcoin::blockdata::block::{Block, BlockHeader};
32 use bitcoin::blockdata::transaction::{Transaction, TxOut};
33 use bitcoin::network::constants::Network;
35 use bitcoin::hashes::sha256::Hash as Sha256;
36 use bitcoin::hashes::Hash;
37 use bitcoin::hash_types::BlockHash;
39 use bitcoin::secp256k1::key::PublicKey;
41 use std::cell::RefCell;
45 use std::collections::HashMap;
47 pub const CHAN_CONFIRM_DEPTH: u32 = 100;
49 pub fn confirm_transaction<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, tx: &Transaction) {
50 let dummy_tx = Transaction { version: 0, lock_time: 0, input: Vec::new(), output: Vec::new() };
51 let dummy_tx_count = tx.version as usize;
52 let mut block = Block {
53 header: BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 },
54 txdata: vec![dummy_tx; dummy_tx_count],
56 block.txdata.push(tx.clone());
57 connect_block(node, &block, 1);
58 for i in 2..CHAN_CONFIRM_DEPTH {
60 header: BlockHeader { version: 0x20000000, prev_blockhash: block.header.block_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 },
63 connect_block(node, &block, i);
67 pub fn connect_blocks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, depth: u32, height: u32, parent: bool, prev_blockhash: BlockHash) -> BlockHash {
68 let mut block = Block {
69 header: BlockHeader { version: 0x2000000, prev_blockhash: if parent { prev_blockhash } else { Default::default() }, merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 },
72 connect_block(node, &block, height + 1);
73 for i in 2..depth + 1 {
75 header: BlockHeader { version: 0x20000000, prev_blockhash: block.header.block_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 },
78 connect_block(node, &block, height + i);
80 block.header.block_hash()
83 pub fn connect_block<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, block: &Block, height: u32) {
84 use chain::WatchEventProvider;
85 use chain::chaininterface::ChainListener;
87 let watch_events = node.chan_monitor.simple_monitor.release_pending_watch_events();
88 process_chain_watch_events(&watch_events);
90 let txdata: Vec<_> = block.txdata.iter().enumerate().collect();
92 node.chan_monitor.simple_monitor.block_connected(&block.header, &txdata, height);
94 let watch_events = node.chan_monitor.simple_monitor.release_pending_watch_events();
95 process_chain_watch_events(&watch_events);
97 if watch_events.is_empty() {
102 node.node.block_connected(&block.header, &txdata, height);
105 fn process_chain_watch_events(_events: &Vec<chain::WatchEvent>) {}
107 pub fn disconnect_block<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, header: &BlockHeader, height: u32) {
108 node.block_notifier.block_disconnected(header, height)
111 pub struct TestChanMonCfg {
112 pub tx_broadcaster: test_utils::TestBroadcaster,
113 pub fee_estimator: test_utils::TestFeeEstimator,
114 pub chain_source: test_utils::TestChainSource,
115 pub logger: test_utils::TestLogger,
118 pub struct NodeCfg<'a> {
119 pub chain_source: &'a test_utils::TestChainSource,
120 pub tx_broadcaster: &'a test_utils::TestBroadcaster,
121 pub fee_estimator: &'a test_utils::TestFeeEstimator,
122 pub chan_monitor: test_utils::TestChannelMonitor<'a>,
123 pub keys_manager: test_utils::TestKeysInterface,
124 pub logger: &'a test_utils::TestLogger,
125 pub node_seed: [u8; 32],
128 pub struct Node<'a, 'b: 'a, 'c: 'b> {
129 pub block_notifier: chaininterface::BlockNotifierRef<'a>,
130 pub chain_source: &'c test_utils::TestChainSource,
131 pub tx_broadcaster: &'c test_utils::TestBroadcaster,
132 pub chan_monitor: &'b test_utils::TestChannelMonitor<'c>,
133 pub keys_manager: &'b test_utils::TestKeysInterface,
134 pub node: &'a ChannelManager<EnforcingChannelKeys, &'b TestChannelMonitor<'c>, &'c test_utils::TestBroadcaster, &'b test_utils::TestKeysInterface, &'c test_utils::TestFeeEstimator, &'c test_utils::TestLogger>,
135 pub net_graph_msg_handler: NetGraphMsgHandler<&'c test_utils::TestChainSource, &'c test_utils::TestLogger>,
136 pub node_seed: [u8; 32],
137 pub network_payment_count: Rc<RefCell<u8>>,
138 pub network_chan_count: Rc<RefCell<u32>>,
139 pub logger: &'c test_utils::TestLogger,
142 impl<'a, 'b, 'c> Drop for Node<'a, 'b, 'c> {
144 if !::std::thread::panicking() {
145 // Check that we processed all pending events
146 assert!(self.node.get_and_clear_pending_msg_events().is_empty());
147 assert!(self.node.get_and_clear_pending_events().is_empty());
148 assert!(self.chan_monitor.added_monitors.lock().unwrap().is_empty());
150 // Check that if we serialize the Router, we can deserialize it again.
152 let mut w = test_utils::TestVecWriter(Vec::new());
153 let network_graph_ser = self.net_graph_msg_handler.network_graph.read().unwrap();
154 network_graph_ser.write(&mut w).unwrap();
155 let network_graph_deser = <NetworkGraph>::read(&mut ::std::io::Cursor::new(&w.0)).unwrap();
156 assert!(network_graph_deser == *self.net_graph_msg_handler.network_graph.read().unwrap());
157 let net_graph_msg_handler = NetGraphMsgHandler::from_net_graph(
158 Some(self.chain_source), self.logger, network_graph_deser
160 let mut chan_progress = 0;
162 let orig_announcements = self.net_graph_msg_handler.get_next_channel_announcements(chan_progress, 255);
163 let deserialized_announcements = net_graph_msg_handler.get_next_channel_announcements(chan_progress, 255);
164 assert!(orig_announcements == deserialized_announcements);
165 chan_progress = match orig_announcements.last() {
166 Some(announcement) => announcement.0.contents.short_channel_id + 1,
170 let mut node_progress = None;
172 let orig_announcements = self.net_graph_msg_handler.get_next_node_announcements(node_progress.as_ref(), 255);
173 let deserialized_announcements = net_graph_msg_handler.get_next_node_announcements(node_progress.as_ref(), 255);
174 assert!(orig_announcements == deserialized_announcements);
175 node_progress = match orig_announcements.last() {
176 Some(announcement) => Some(announcement.contents.node_id),
182 // Check that if we serialize and then deserialize all our channel monitors we get the
183 // same set of outputs to watch for on chain as we have now. Note that if we write
184 // tests that fully close channels and remove the monitors at some point this may break.
185 let feeest = test_utils::TestFeeEstimator { sat_per_kw: 253 };
186 let mut deserialized_monitors = Vec::new();
188 let old_monitors = self.chan_monitor.simple_monitor.monitors.lock().unwrap();
189 for (_, old_monitor) in old_monitors.iter() {
190 let mut w = test_utils::TestVecWriter(Vec::new());
191 old_monitor.write_for_disk(&mut w).unwrap();
192 let (_, deserialized_monitor) = <(BlockHash, ChannelMonitor<EnforcingChannelKeys>)>::read(
193 &mut ::std::io::Cursor::new(&w.0)).unwrap();
194 deserialized_monitors.push(deserialized_monitor);
198 // Before using all the new monitors to check the watch outpoints, use the full set of
199 // them to ensure we can write and reload our ChannelManager.
201 let mut channel_monitors = HashMap::new();
202 for monitor in deserialized_monitors.iter_mut() {
203 channel_monitors.insert(monitor.get_funding_txo().0, monitor);
206 let mut w = test_utils::TestVecWriter(Vec::new());
207 self.node.write(&mut w).unwrap();
208 <(BlockHash, ChannelManager<EnforcingChannelKeys, &test_utils::TestChannelMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestLogger>)>::read(&mut ::std::io::Cursor::new(w.0), ChannelManagerReadArgs {
209 default_config: UserConfig::default(),
210 keys_manager: self.keys_manager,
211 fee_estimator: &test_utils::TestFeeEstimator { sat_per_kw: 253 },
212 monitor: self.chan_monitor,
213 tx_broadcaster: self.tx_broadcaster.clone(),
214 logger: &test_utils::TestLogger::new(),
219 let channel_monitor = test_utils::TestChannelMonitor::new(self.tx_broadcaster.clone(), &self.logger, &feeest);
220 for deserialized_monitor in deserialized_monitors.drain(..) {
221 if let Err(_) = channel_monitor.add_monitor(deserialized_monitor.get_funding_txo().0, deserialized_monitor) {
229 pub fn create_chan_between_nodes<'a, 'b, 'c, 'd>(node_a: &'a Node<'b, 'c, 'd>, node_b: &'a Node<'b, 'c, 'd>, a_flags: InitFeatures, b_flags: InitFeatures) -> (msgs::ChannelAnnouncement, msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
230 create_chan_between_nodes_with_value(node_a, node_b, 100000, 10001, a_flags, b_flags)
233 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, a_flags: InitFeatures, b_flags: InitFeatures) -> (msgs::ChannelAnnouncement, msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
234 let (funding_locked, channel_id, tx) = create_chan_between_nodes_with_value_a(node_a, node_b, channel_value, push_msat, a_flags, b_flags);
235 let (announcement, as_update, bs_update) = create_chan_between_nodes_with_value_b(node_a, node_b, &funding_locked);
236 (announcement, as_update, bs_update, channel_id, tx)
239 macro_rules! get_revoke_commit_msgs {
240 ($node: expr, $node_id: expr) => {
242 let events = $node.node.get_and_clear_pending_msg_events();
243 assert_eq!(events.len(), 2);
245 MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
246 assert_eq!(*node_id, $node_id);
249 _ => panic!("Unexpected event"),
251 MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
252 assert_eq!(*node_id, $node_id);
253 assert!(updates.update_add_htlcs.is_empty());
254 assert!(updates.update_fulfill_htlcs.is_empty());
255 assert!(updates.update_fail_htlcs.is_empty());
256 assert!(updates.update_fail_malformed_htlcs.is_empty());
257 assert!(updates.update_fee.is_none());
258 updates.commitment_signed.clone()
260 _ => panic!("Unexpected event"),
266 macro_rules! get_event_msg {
267 ($node: expr, $event_type: path, $node_id: expr) => {
269 let events = $node.node.get_and_clear_pending_msg_events();
270 assert_eq!(events.len(), 1);
272 $event_type { ref node_id, ref msg } => {
273 assert_eq!(*node_id, $node_id);
276 _ => panic!("Unexpected event"),
282 macro_rules! get_htlc_update_msgs {
283 ($node: expr, $node_id: expr) => {
285 let events = $node.node.get_and_clear_pending_msg_events();
286 assert_eq!(events.len(), 1);
288 MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
289 assert_eq!(*node_id, $node_id);
292 _ => panic!("Unexpected event"),
298 macro_rules! get_feerate {
299 ($node: expr, $channel_id: expr) => {
301 let chan_lock = $node.node.channel_state.lock().unwrap();
302 let chan = chan_lock.by_id.get(&$channel_id).unwrap();
308 macro_rules! get_local_commitment_txn {
309 ($node: expr, $channel_id: expr) => {
311 let mut monitors = $node.chan_monitor.simple_monitor.monitors.lock().unwrap();
312 let mut commitment_txn = None;
313 for (funding_txo, monitor) in monitors.iter_mut() {
314 if funding_txo.to_channel_id() == $channel_id {
315 commitment_txn = Some(monitor.unsafe_get_latest_holder_commitment_txn(&$node.logger));
319 commitment_txn.unwrap()
324 macro_rules! unwrap_send_err {
325 ($res: expr, $all_failed: expr, $type: pat, $check: expr) => {
327 &Err(PaymentSendFailure::AllFailedRetrySafe(ref fails)) if $all_failed => {
328 assert_eq!(fails.len(), 1);
334 &Err(PaymentSendFailure::PartialFailure(ref fails)) if !$all_failed => {
335 assert_eq!(fails.len(), 1);
337 Err($type) => { $check },
346 macro_rules! check_added_monitors {
347 ($node: expr, $count: expr) => {
349 let mut added_monitors = $node.chan_monitor.added_monitors.lock().unwrap();
350 assert_eq!(added_monitors.len(), $count);
351 added_monitors.clear();
356 pub fn create_funding_transaction<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, expected_chan_value: u64, expected_user_chan_id: u64) -> ([u8; 32], Transaction, OutPoint) {
357 let chan_id = *node.network_chan_count.borrow();
359 let events = node.node.get_and_clear_pending_events();
360 assert_eq!(events.len(), 1);
362 Event::FundingGenerationReady { ref temporary_channel_id, ref channel_value_satoshis, ref output_script, user_channel_id } => {
363 assert_eq!(*channel_value_satoshis, expected_chan_value);
364 assert_eq!(user_channel_id, expected_user_chan_id);
366 let tx = Transaction { version: chan_id as i32, lock_time: 0, input: Vec::new(), output: vec![TxOut {
367 value: *channel_value_satoshis, script_pubkey: output_script.clone(),
369 let funding_outpoint = OutPoint { txid: tx.txid(), index: 0 };
370 (*temporary_channel_id, tx, funding_outpoint)
372 _ => panic!("Unexpected event"),
376 pub fn create_chan_between_nodes_with_value_init<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a, 'b, 'c>, channel_value: u64, push_msat: u64, a_flags: InitFeatures, b_flags: InitFeatures) -> Transaction {
377 node_a.node.create_channel(node_b.node.get_our_node_id(), channel_value, push_msat, 42, None).unwrap();
378 node_b.node.handle_open_channel(&node_a.node.get_our_node_id(), a_flags, &get_event_msg!(node_a, MessageSendEvent::SendOpenChannel, node_b.node.get_our_node_id()));
379 node_a.node.handle_accept_channel(&node_b.node.get_our_node_id(), b_flags, &get_event_msg!(node_b, MessageSendEvent::SendAcceptChannel, node_a.node.get_our_node_id()));
381 let (temporary_channel_id, tx, funding_output) = create_funding_transaction(node_a, channel_value, 42);
383 node_a.node.funding_transaction_generated(&temporary_channel_id, funding_output);
384 check_added_monitors!(node_a, 0);
386 node_b.node.handle_funding_created(&node_a.node.get_our_node_id(), &get_event_msg!(node_a, MessageSendEvent::SendFundingCreated, node_b.node.get_our_node_id()));
388 let mut added_monitors = node_b.chan_monitor.added_monitors.lock().unwrap();
389 assert_eq!(added_monitors.len(), 1);
390 assert_eq!(added_monitors[0].0, funding_output);
391 added_monitors.clear();
394 node_a.node.handle_funding_signed(&node_b.node.get_our_node_id(), &get_event_msg!(node_b, MessageSendEvent::SendFundingSigned, node_a.node.get_our_node_id()));
396 let mut added_monitors = node_a.chan_monitor.added_monitors.lock().unwrap();
397 assert_eq!(added_monitors.len(), 1);
398 assert_eq!(added_monitors[0].0, funding_output);
399 added_monitors.clear();
402 let events_4 = node_a.node.get_and_clear_pending_events();
403 assert_eq!(events_4.len(), 1);
405 Event::FundingBroadcastSafe { ref funding_txo, user_channel_id } => {
406 assert_eq!(user_channel_id, 42);
407 assert_eq!(*funding_txo, funding_output);
409 _ => panic!("Unexpected event"),
415 pub fn create_chan_between_nodes_with_value_confirm_first<'a, 'b, 'c, 'd>(node_recv: &'a Node<'b, 'c, 'c>, node_conf: &'a Node<'b, 'c, 'd>, tx: &Transaction) {
416 confirm_transaction(node_conf, tx);
417 node_recv.node.handle_funding_locked(&node_conf.node.get_our_node_id(), &get_event_msg!(node_conf, MessageSendEvent::SendFundingLocked, node_recv.node.get_our_node_id()));
420 pub fn create_chan_between_nodes_with_value_confirm_second<'a, 'b, 'c>(node_recv: &Node<'a, 'b, 'c>, node_conf: &Node<'a, 'b, 'c>) -> ((msgs::FundingLocked, msgs::AnnouncementSignatures), [u8; 32]) {
422 let events_6 = node_conf.node.get_and_clear_pending_msg_events();
423 assert_eq!(events_6.len(), 2);
424 ((match events_6[0] {
425 MessageSendEvent::SendFundingLocked { ref node_id, ref msg } => {
426 channel_id = msg.channel_id.clone();
427 assert_eq!(*node_id, node_recv.node.get_our_node_id());
430 _ => panic!("Unexpected event"),
431 }, match events_6[1] {
432 MessageSendEvent::SendAnnouncementSignatures { ref node_id, ref msg } => {
433 assert_eq!(*node_id, node_recv.node.get_our_node_id());
436 _ => panic!("Unexpected event"),
440 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::FundingLocked, msgs::AnnouncementSignatures), [u8; 32]) {
441 create_chan_between_nodes_with_value_confirm_first(node_a, node_b, tx);
442 confirm_transaction(node_a, tx);
443 create_chan_between_nodes_with_value_confirm_second(node_b, node_a)
446 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, a_flags: InitFeatures, b_flags: InitFeatures) -> ((msgs::FundingLocked, msgs::AnnouncementSignatures), [u8; 32], Transaction) {
447 let tx = create_chan_between_nodes_with_value_init(node_a, node_b, channel_value, push_msat, a_flags, b_flags);
448 let (msgs, chan_id) = create_chan_between_nodes_with_value_confirm(node_a, node_b, &tx);
452 pub fn create_chan_between_nodes_with_value_b<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a, 'b, 'c>, as_funding_msgs: &(msgs::FundingLocked, msgs::AnnouncementSignatures)) -> (msgs::ChannelAnnouncement, msgs::ChannelUpdate, msgs::ChannelUpdate) {
453 node_b.node.handle_funding_locked(&node_a.node.get_our_node_id(), &as_funding_msgs.0);
454 let bs_announcement_sigs = get_event_msg!(node_b, MessageSendEvent::SendAnnouncementSignatures, node_a.node.get_our_node_id());
455 node_b.node.handle_announcement_signatures(&node_a.node.get_our_node_id(), &as_funding_msgs.1);
457 let events_7 = node_b.node.get_and_clear_pending_msg_events();
458 assert_eq!(events_7.len(), 1);
459 let (announcement, bs_update) = match events_7[0] {
460 MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
463 _ => panic!("Unexpected event"),
466 node_a.node.handle_announcement_signatures(&node_b.node.get_our_node_id(), &bs_announcement_sigs);
467 let events_8 = node_a.node.get_and_clear_pending_msg_events();
468 assert_eq!(events_8.len(), 1);
469 let as_update = match events_8[0] {
470 MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
471 assert!(*announcement == *msg);
472 assert_eq!(update_msg.contents.short_channel_id, announcement.contents.short_channel_id);
473 assert_eq!(update_msg.contents.short_channel_id, bs_update.contents.short_channel_id);
476 _ => panic!("Unexpected event"),
479 *node_a.network_chan_count.borrow_mut() += 1;
481 ((*announcement).clone(), (*as_update).clone(), (*bs_update).clone())
484 pub fn create_announced_chan_between_nodes<'a, 'b, 'c, 'd>(nodes: &'a Vec<Node<'b, 'c, 'd>>, a: usize, b: usize, a_flags: InitFeatures, b_flags: InitFeatures) -> (msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
485 create_announced_chan_between_nodes_with_value(nodes, a, b, 100000, 10001, a_flags, b_flags)
488 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, a_flags: InitFeatures, b_flags: InitFeatures) -> (msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
489 let chan_announcement = create_chan_between_nodes_with_value(&nodes[a], &nodes[b], channel_value, push_msat, a_flags, b_flags);
491 nodes[a].node.broadcast_node_announcement([0, 0, 0], [0; 32], Vec::new());
492 let a_events = nodes[a].node.get_and_clear_pending_msg_events();
493 assert_eq!(a_events.len(), 1);
494 let a_node_announcement = match a_events[0] {
495 MessageSendEvent::BroadcastNodeAnnouncement { ref msg } => {
498 _ => panic!("Unexpected event"),
501 nodes[b].node.broadcast_node_announcement([1, 1, 1], [1; 32], Vec::new());
502 let b_events = nodes[b].node.get_and_clear_pending_msg_events();
503 assert_eq!(b_events.len(), 1);
504 let b_node_announcement = match b_events[0] {
505 MessageSendEvent::BroadcastNodeAnnouncement { ref msg } => {
508 _ => panic!("Unexpected event"),
512 assert!(node.net_graph_msg_handler.handle_channel_announcement(&chan_announcement.0).unwrap());
513 node.net_graph_msg_handler.handle_channel_update(&chan_announcement.1).unwrap();
514 node.net_graph_msg_handler.handle_channel_update(&chan_announcement.2).unwrap();
515 node.net_graph_msg_handler.handle_node_announcement(&a_node_announcement).unwrap();
516 node.net_graph_msg_handler.handle_node_announcement(&b_node_announcement).unwrap();
518 (chan_announcement.1, chan_announcement.2, chan_announcement.3, chan_announcement.4)
521 macro_rules! check_spends {
522 ($tx: expr, $($spends_txn: expr),*) => {
524 $tx.verify(|out_point| {
526 if out_point.txid == $spends_txn.txid() {
527 return $spends_txn.output.get(out_point.vout as usize).cloned()
536 macro_rules! get_closing_signed_broadcast {
537 ($node: expr, $dest_pubkey: expr) => {
539 let events = $node.get_and_clear_pending_msg_events();
540 assert!(events.len() == 1 || events.len() == 2);
541 (match events[events.len() - 1] {
542 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
543 assert_eq!(msg.contents.flags & 2, 2);
546 _ => panic!("Unexpected event"),
547 }, if events.len() == 2 {
549 MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => {
550 assert_eq!(*node_id, $dest_pubkey);
553 _ => panic!("Unexpected event"),
560 macro_rules! check_closed_broadcast {
561 ($node: expr, $with_error_msg: expr) => {{
562 let events = $node.node.get_and_clear_pending_msg_events();
563 assert_eq!(events.len(), if $with_error_msg { 2 } else { 1 });
565 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
566 assert_eq!(msg.contents.flags & 2, 2);
568 _ => panic!("Unexpected event"),
572 MessageSendEvent::HandleError { action: ErrorAction::SendErrorMessage { ref msg }, node_id: _ } => {
573 // TODO: Check node_id
576 _ => panic!("Unexpected event"),
582 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) {
583 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) };
584 let (node_b, broadcaster_b) = if close_inbound_first { (&outbound_node.node, &outbound_node.tx_broadcaster) } else { (&inbound_node.node, &inbound_node.tx_broadcaster) };
587 node_a.close_channel(channel_id).unwrap();
588 node_b.handle_shutdown(&node_a.get_our_node_id(), &get_event_msg!(struct_a, MessageSendEvent::SendShutdown, node_b.get_our_node_id()));
590 let events_1 = node_b.get_and_clear_pending_msg_events();
591 assert!(events_1.len() >= 1);
592 let shutdown_b = match events_1[0] {
593 MessageSendEvent::SendShutdown { ref node_id, ref msg } => {
594 assert_eq!(node_id, &node_a.get_our_node_id());
597 _ => panic!("Unexpected event"),
600 let closing_signed_b = if !close_inbound_first {
601 assert_eq!(events_1.len(), 1);
604 Some(match events_1[1] {
605 MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => {
606 assert_eq!(node_id, &node_a.get_our_node_id());
609 _ => panic!("Unexpected event"),
613 node_a.handle_shutdown(&node_b.get_our_node_id(), &shutdown_b);
614 let (as_update, bs_update) = if close_inbound_first {
615 assert!(node_a.get_and_clear_pending_msg_events().is_empty());
616 node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap());
617 assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1);
618 tx_a = broadcaster_a.txn_broadcasted.lock().unwrap().remove(0);
619 let (as_update, closing_signed_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id());
621 node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a.unwrap());
622 let (bs_update, none_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id());
623 assert!(none_b.is_none());
624 assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1);
625 tx_b = broadcaster_b.txn_broadcasted.lock().unwrap().remove(0);
626 (as_update, bs_update)
628 let closing_signed_a = get_event_msg!(struct_a, MessageSendEvent::SendClosingSigned, node_b.get_our_node_id());
630 node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a);
631 assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1);
632 tx_b = broadcaster_b.txn_broadcasted.lock().unwrap().remove(0);
633 let (bs_update, closing_signed_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id());
635 node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap());
636 let (as_update, none_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id());
637 assert!(none_a.is_none());
638 assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1);
639 tx_a = broadcaster_a.txn_broadcasted.lock().unwrap().remove(0);
640 (as_update, bs_update)
642 assert_eq!(tx_a, tx_b);
643 check_spends!(tx_a, funding_tx);
645 (as_update, bs_update, tx_a)
648 pub struct SendEvent {
649 pub node_id: PublicKey,
650 pub msgs: Vec<msgs::UpdateAddHTLC>,
651 pub commitment_msg: msgs::CommitmentSigned,
654 pub fn from_commitment_update(node_id: PublicKey, updates: msgs::CommitmentUpdate) -> SendEvent {
655 assert!(updates.update_fulfill_htlcs.is_empty());
656 assert!(updates.update_fail_htlcs.is_empty());
657 assert!(updates.update_fail_malformed_htlcs.is_empty());
658 assert!(updates.update_fee.is_none());
659 SendEvent { node_id: node_id, msgs: updates.update_add_htlcs, commitment_msg: updates.commitment_signed }
662 pub fn from_event(event: MessageSendEvent) -> SendEvent {
664 MessageSendEvent::UpdateHTLCs { node_id, updates } => SendEvent::from_commitment_update(node_id, updates),
665 _ => panic!("Unexpected event type!"),
669 pub fn from_node<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>) -> SendEvent {
670 let mut events = node.node.get_and_clear_pending_msg_events();
671 assert_eq!(events.len(), 1);
672 SendEvent::from_event(events.pop().unwrap())
676 macro_rules! commitment_signed_dance {
677 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr, true /* skip last step */) => {
679 check_added_monitors!($node_a, 0);
680 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
681 $node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed);
682 check_added_monitors!($node_a, 1);
683 commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, false);
686 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, true /* return extra message */, true /* return last RAA */) => {
688 let (as_revoke_and_ack, as_commitment_signed) = get_revoke_commit_msgs!($node_a, $node_b.node.get_our_node_id());
689 check_added_monitors!($node_b, 0);
690 assert!($node_b.node.get_and_clear_pending_msg_events().is_empty());
691 $node_b.node.handle_revoke_and_ack(&$node_a.node.get_our_node_id(), &as_revoke_and_ack);
692 assert!($node_b.node.get_and_clear_pending_msg_events().is_empty());
693 check_added_monitors!($node_b, 1);
694 $node_b.node.handle_commitment_signed(&$node_a.node.get_our_node_id(), &as_commitment_signed);
695 let (bs_revoke_and_ack, extra_msg_option) = {
696 let events = $node_b.node.get_and_clear_pending_msg_events();
697 assert!(events.len() <= 2);
699 MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
700 assert_eq!(*node_id, $node_a.node.get_our_node_id());
703 _ => panic!("Unexpected event"),
704 }, events.get(1).map(|e| e.clone()))
706 check_added_monitors!($node_b, 1);
708 assert!($node_a.node.get_and_clear_pending_events().is_empty());
709 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
711 (extra_msg_option, bs_revoke_and_ack)
714 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr, true /* skip last step */, false /* return extra message */, true /* return last RAA */) => {
716 check_added_monitors!($node_a, 0);
717 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
718 $node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed);
719 check_added_monitors!($node_a, 1);
720 let (extra_msg_option, bs_revoke_and_ack) = commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true, true);
721 assert!(extra_msg_option.is_none());
725 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, true /* return extra message */) => {
727 let (extra_msg_option, bs_revoke_and_ack) = commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true, true);
728 $node_a.node.handle_revoke_and_ack(&$node_b.node.get_our_node_id(), &bs_revoke_and_ack);
729 check_added_monitors!($node_a, 1);
733 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, false /* no extra message */) => {
735 assert!(commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true).is_none());
738 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr) => {
740 commitment_signed_dance!($node_a, $node_b, $commitment_signed, $fail_backwards, true);
742 expect_pending_htlcs_forwardable!($node_a);
743 check_added_monitors!($node_a, 1);
745 let channel_state = $node_a.node.channel_state.lock().unwrap();
746 assert_eq!(channel_state.pending_msg_events.len(), 1);
747 if let MessageSendEvent::UpdateHTLCs { ref node_id, .. } = channel_state.pending_msg_events[0] {
748 assert_ne!(*node_id, $node_b.node.get_our_node_id());
749 } else { panic!("Unexpected event"); }
751 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
757 macro_rules! get_payment_preimage_hash {
760 let payment_preimage = PaymentPreimage([*$node.network_payment_count.borrow(); 32]);
761 *$node.network_payment_count.borrow_mut() += 1;
762 let payment_hash = PaymentHash(Sha256::hash(&payment_preimage.0[..]).into_inner());
763 (payment_preimage, payment_hash)
768 macro_rules! expect_pending_htlcs_forwardable_ignore {
770 let events = $node.node.get_and_clear_pending_events();
771 assert_eq!(events.len(), 1);
773 Event::PendingHTLCsForwardable { .. } => { },
774 _ => panic!("Unexpected event"),
779 macro_rules! expect_pending_htlcs_forwardable {
781 expect_pending_htlcs_forwardable_ignore!($node);
782 $node.node.process_pending_htlc_forwards();
786 macro_rules! expect_payment_received {
787 ($node: expr, $expected_payment_hash: expr, $expected_recv_value: expr) => {
788 let events = $node.node.get_and_clear_pending_events();
789 assert_eq!(events.len(), 1);
791 Event::PaymentReceived { ref payment_hash, ref payment_secret, amt } => {
792 assert_eq!($expected_payment_hash, *payment_hash);
793 assert_eq!(None, *payment_secret);
794 assert_eq!($expected_recv_value, amt);
796 _ => panic!("Unexpected event"),
801 macro_rules! expect_payment_sent {
802 ($node: expr, $expected_payment_preimage: expr) => {
803 let events = $node.node.get_and_clear_pending_events();
804 assert_eq!(events.len(), 1);
806 Event::PaymentSent { ref payment_preimage } => {
807 assert_eq!($expected_payment_preimage, *payment_preimage);
809 _ => panic!("Unexpected event"),
814 macro_rules! expect_payment_failed {
815 ($node: expr, $expected_payment_hash: expr, $rejected_by_dest: expr $(, $expected_error_code: expr, $expected_error_data: expr)*) => {
816 let events = $node.node.get_and_clear_pending_events();
817 assert_eq!(events.len(), 1);
819 Event::PaymentFailed { ref payment_hash, rejected_by_dest, ref error_code, ref error_data } => {
820 assert_eq!(*payment_hash, $expected_payment_hash);
821 assert_eq!(rejected_by_dest, $rejected_by_dest);
822 assert!(error_code.is_some());
823 assert!(error_data.is_some());
825 assert_eq!(error_code.unwrap(), $expected_error_code);
826 assert_eq!(&error_data.as_ref().unwrap()[..], $expected_error_data);
829 _ => panic!("Unexpected event"),
834 pub fn send_along_route_with_secret<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, route: Route, expected_paths: &[&[&Node<'a, 'b, 'c>]], recv_value: u64, our_payment_hash: PaymentHash, our_payment_secret: Option<PaymentSecret>) {
835 origin_node.node.send_payment(&route, our_payment_hash, &our_payment_secret).unwrap();
836 check_added_monitors!(origin_node, expected_paths.len());
837 pass_along_route(origin_node, expected_paths, recv_value, our_payment_hash, our_payment_secret);
840 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_received_expected: bool) {
841 let mut payment_event = SendEvent::from_event(ev);
842 let mut prev_node = origin_node;
844 for (idx, &node) in expected_path.iter().enumerate() {
845 assert_eq!(node.node.get_our_node_id(), payment_event.node_id);
847 node.node.handle_update_add_htlc(&prev_node.node.get_our_node_id(), &payment_event.msgs[0]);
848 check_added_monitors!(node, 0);
849 commitment_signed_dance!(node, prev_node, payment_event.commitment_msg, false);
851 expect_pending_htlcs_forwardable!(node);
853 if idx == expected_path.len() - 1 {
854 let events_2 = node.node.get_and_clear_pending_events();
855 if payment_received_expected {
856 assert_eq!(events_2.len(), 1);
858 Event::PaymentReceived { ref payment_hash, ref payment_secret, amt } => {
859 assert_eq!(our_payment_hash, *payment_hash);
860 assert_eq!(our_payment_secret, *payment_secret);
861 assert_eq!(amt, recv_value);
863 _ => panic!("Unexpected event"),
866 assert!(events_2.is_empty());
869 let mut events_2 = node.node.get_and_clear_pending_msg_events();
870 assert_eq!(events_2.len(), 1);
871 check_added_monitors!(node, 1);
872 payment_event = SendEvent::from_event(events_2.remove(0));
873 assert_eq!(payment_event.msgs.len(), 1);
880 pub fn pass_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&[&Node<'a, 'b, 'c>]], recv_value: u64, our_payment_hash: PaymentHash, our_payment_secret: Option<PaymentSecret>) {
881 let mut events = origin_node.node.get_and_clear_pending_msg_events();
882 assert_eq!(events.len(), expected_route.len());
883 for (path_idx, (ev, expected_path)) in events.drain(..).zip(expected_route.iter()).enumerate() {
884 // Once we've gotten through all the HTLCs, the last one should result in a
885 // PaymentReceived (but each previous one should not!), .
886 let expect_payment = path_idx == expected_route.len() - 1;
887 pass_along_path(origin_node, expected_path, recv_value, our_payment_hash.clone(), our_payment_secret, ev, expect_payment);
891 pub fn send_along_route_with_hash<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, route: Route, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64, our_payment_hash: PaymentHash) {
892 send_along_route_with_secret(origin_node, route, &[expected_route], recv_value, our_payment_hash, None);
895 pub fn send_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, route: Route, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) -> (PaymentPreimage, PaymentHash) {
896 let (our_payment_preimage, our_payment_hash) = get_payment_preimage_hash!(origin_node);
897 send_along_route_with_hash(origin_node, route, expected_route, recv_value, our_payment_hash);
898 (our_payment_preimage, our_payment_hash)
901 pub fn claim_payment_along_route_with_secret<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_paths: &[&[&Node<'a, 'b, 'c>]], skip_last: bool, our_payment_preimage: PaymentPreimage, our_payment_secret: Option<PaymentSecret>, expected_amount: u64) {
902 for path in expected_paths.iter() {
903 assert_eq!(path.last().unwrap().node.get_our_node_id(), expected_paths[0].last().unwrap().node.get_our_node_id());
905 assert!(expected_paths[0].last().unwrap().node.claim_funds(our_payment_preimage, &our_payment_secret, expected_amount));
906 check_added_monitors!(expected_paths[0].last().unwrap(), expected_paths.len());
908 macro_rules! msgs_from_ev {
911 &MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, ref update_fee, ref commitment_signed } } => {
912 assert!(update_add_htlcs.is_empty());
913 assert_eq!(update_fulfill_htlcs.len(), 1);
914 assert!(update_fail_htlcs.is_empty());
915 assert!(update_fail_malformed_htlcs.is_empty());
916 assert!(update_fee.is_none());
917 ((update_fulfill_htlcs[0].clone(), commitment_signed.clone()), node_id.clone())
919 _ => panic!("Unexpected event"),
923 let mut per_path_msgs: Vec<((msgs::UpdateFulfillHTLC, msgs::CommitmentSigned), PublicKey)> = Vec::with_capacity(expected_paths.len());
924 let events = expected_paths[0].last().unwrap().node.get_and_clear_pending_msg_events();
925 assert_eq!(events.len(), expected_paths.len());
926 for ev in events.iter() {
927 per_path_msgs.push(msgs_from_ev!(ev));
930 for (expected_route, (path_msgs, next_hop)) in expected_paths.iter().zip(per_path_msgs.drain(..)) {
931 let mut next_msgs = Some(path_msgs);
932 let mut expected_next_node = next_hop;
934 macro_rules! last_update_fulfill_dance {
935 ($node: expr, $prev_node: expr) => {
937 $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
938 check_added_monitors!($node, 0);
939 assert!($node.node.get_and_clear_pending_msg_events().is_empty());
940 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, false);
944 macro_rules! mid_update_fulfill_dance {
945 ($node: expr, $prev_node: expr, $new_msgs: expr) => {
947 $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
948 check_added_monitors!($node, 1);
949 let new_next_msgs = if $new_msgs {
950 let events = $node.node.get_and_clear_pending_msg_events();
951 assert_eq!(events.len(), 1);
952 let (res, nexthop) = msgs_from_ev!(&events[0]);
953 expected_next_node = nexthop;
956 assert!($node.node.get_and_clear_pending_msg_events().is_empty());
959 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, false);
960 next_msgs = new_next_msgs;
965 let mut prev_node = expected_route.last().unwrap();
966 for (idx, node) in expected_route.iter().rev().enumerate().skip(1) {
967 assert_eq!(expected_next_node, node.node.get_our_node_id());
968 let update_next_msgs = !skip_last || idx != expected_route.len() - 1;
969 if next_msgs.is_some() {
970 mid_update_fulfill_dance!(node, prev_node, update_next_msgs);
972 assert!(!update_next_msgs);
973 assert!(node.node.get_and_clear_pending_msg_events().is_empty());
975 if !skip_last && idx == expected_route.len() - 1 {
976 assert_eq!(expected_next_node, origin_node.node.get_our_node_id());
983 last_update_fulfill_dance!(origin_node, expected_route.first().unwrap());
984 expect_payment_sent!(origin_node, our_payment_preimage);
989 pub fn claim_payment_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], skip_last: bool, our_payment_preimage: PaymentPreimage, expected_amount: u64) {
990 claim_payment_along_route_with_secret(origin_node, &[expected_route], skip_last, our_payment_preimage, None, expected_amount);
993 pub fn claim_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], our_payment_preimage: PaymentPreimage, expected_amount: u64) {
994 claim_payment_along_route(origin_node, expected_route, false, our_payment_preimage, expected_amount);
997 pub const TEST_FINAL_CLTV: u32 = 32;
999 pub fn route_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) -> (PaymentPreimage, PaymentHash) {
1000 let net_graph_msg_handler = &origin_node.net_graph_msg_handler;
1001 let logger = test_utils::TestLogger::new();
1002 let route = get_route(&origin_node.node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &expected_route.last().unwrap().node.get_our_node_id(), None, &Vec::new(), recv_value, TEST_FINAL_CLTV, &logger).unwrap();
1003 assert_eq!(route.paths.len(), 1);
1004 assert_eq!(route.paths[0].len(), expected_route.len());
1005 for (node, hop) in expected_route.iter().zip(route.paths[0].iter()) {
1006 assert_eq!(hop.pubkey, node.node.get_our_node_id());
1009 send_along_route(origin_node, route, expected_route, recv_value)
1012 pub fn route_over_limit<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) {
1013 let logger = test_utils::TestLogger::new();
1014 let net_graph_msg_handler = &origin_node.net_graph_msg_handler;
1015 let route = get_route(&origin_node.node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &expected_route.last().unwrap().node.get_our_node_id(), None, &Vec::new(), recv_value, TEST_FINAL_CLTV, &logger).unwrap();
1016 assert_eq!(route.paths.len(), 1);
1017 assert_eq!(route.paths[0].len(), expected_route.len());
1018 for (node, hop) in expected_route.iter().zip(route.paths[0].iter()) {
1019 assert_eq!(hop.pubkey, node.node.get_our_node_id());
1022 let (_, our_payment_hash) = get_payment_preimage_hash!(origin_node);
1023 unwrap_send_err!(origin_node.node.send_payment(&route, our_payment_hash, &None), true, APIError::ChannelUnavailable { ref err },
1024 assert!(err.contains("Cannot send value that would put us over the max HTLC value in flight our peer will accept")));
1027 pub fn send_payment<'a, 'b, 'c>(origin: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64, expected_value: u64) {
1028 let our_payment_preimage = route_payment(&origin, expected_route, recv_value).0;
1029 claim_payment(&origin, expected_route, our_payment_preimage, expected_value);
1032 pub fn fail_payment_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], skip_last: bool, our_payment_hash: PaymentHash) {
1033 assert!(expected_route.last().unwrap().node.fail_htlc_backwards(&our_payment_hash, &None));
1034 expect_pending_htlcs_forwardable!(expected_route.last().unwrap());
1035 check_added_monitors!(expected_route.last().unwrap(), 1);
1037 let mut next_msgs: Option<(msgs::UpdateFailHTLC, msgs::CommitmentSigned)> = None;
1038 macro_rules! update_fail_dance {
1039 ($node: expr, $prev_node: expr, $last_node: expr) => {
1041 $node.node.handle_update_fail_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
1042 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, !$last_node);
1043 if skip_last && $last_node {
1044 expect_pending_htlcs_forwardable!($node);
1050 let mut expected_next_node = expected_route.last().unwrap().node.get_our_node_id();
1051 let mut prev_node = expected_route.last().unwrap();
1052 for (idx, node) in expected_route.iter().rev().enumerate() {
1053 assert_eq!(expected_next_node, node.node.get_our_node_id());
1054 if next_msgs.is_some() {
1055 // We may be the "last node" for the purpose of the commitment dance if we're
1056 // skipping the last node (implying it is disconnected) and we're the
1057 // second-to-last node!
1058 update_fail_dance!(node, prev_node, skip_last && idx == expected_route.len() - 1);
1061 let events = node.node.get_and_clear_pending_msg_events();
1062 if !skip_last || idx != expected_route.len() - 1 {
1063 assert_eq!(events.len(), 1);
1065 MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, ref update_fee, ref commitment_signed } } => {
1066 assert!(update_add_htlcs.is_empty());
1067 assert!(update_fulfill_htlcs.is_empty());
1068 assert_eq!(update_fail_htlcs.len(), 1);
1069 assert!(update_fail_malformed_htlcs.is_empty());
1070 assert!(update_fee.is_none());
1071 expected_next_node = node_id.clone();
1072 next_msgs = Some((update_fail_htlcs[0].clone(), commitment_signed.clone()));
1074 _ => panic!("Unexpected event"),
1077 assert!(events.is_empty());
1079 if !skip_last && idx == expected_route.len() - 1 {
1080 assert_eq!(expected_next_node, origin_node.node.get_our_node_id());
1087 update_fail_dance!(origin_node, expected_route.first().unwrap(), true);
1089 let events = origin_node.node.get_and_clear_pending_events();
1090 assert_eq!(events.len(), 1);
1092 Event::PaymentFailed { payment_hash, rejected_by_dest, .. } => {
1093 assert_eq!(payment_hash, our_payment_hash);
1094 assert!(rejected_by_dest);
1096 _ => panic!("Unexpected event"),
1101 pub fn fail_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], our_payment_hash: PaymentHash) {
1102 fail_payment_along_route(origin_node, expected_route, false, our_payment_hash);
1105 pub fn create_chanmon_cfgs(node_count: usize) -> Vec<TestChanMonCfg> {
1106 let mut chan_mon_cfgs = Vec::new();
1107 for i in 0..node_count {
1108 let tx_broadcaster = test_utils::TestBroadcaster{txn_broadcasted: Mutex::new(Vec::new())};
1109 let fee_estimator = test_utils::TestFeeEstimator { sat_per_kw: 253 };
1110 let chain_source = test_utils::TestChainSource::new(Network::Testnet);
1111 let logger = test_utils::TestLogger::with_id(format!("node {}", i));
1112 chan_mon_cfgs.push(TestChanMonCfg{ tx_broadcaster, fee_estimator, chain_source, logger });
1118 pub fn create_node_cfgs<'a>(node_count: usize, chanmon_cfgs: &'a Vec<TestChanMonCfg>) -> Vec<NodeCfg<'a>> {
1119 let mut nodes = Vec::new();
1121 for i in 0..node_count {
1122 let seed = [i as u8; 32];
1123 let keys_manager = test_utils::TestKeysInterface::new(&seed, Network::Testnet);
1124 let chan_monitor = test_utils::TestChannelMonitor::new(&chanmon_cfgs[i].tx_broadcaster, &chanmon_cfgs[i].logger, &chanmon_cfgs[i].fee_estimator);
1125 nodes.push(NodeCfg { chain_source: &chanmon_cfgs[i].chain_source, logger: &chanmon_cfgs[i].logger, tx_broadcaster: &chanmon_cfgs[i].tx_broadcaster, fee_estimator: &chanmon_cfgs[i].fee_estimator, chan_monitor, keys_manager, node_seed: seed });
1131 pub fn create_node_chanmgrs<'a, 'b>(node_count: usize, cfgs: &'a Vec<NodeCfg<'b>>, node_config: &[Option<UserConfig>]) -> Vec<ChannelManager<EnforcingChannelKeys, &'a TestChannelMonitor<'b>, &'b test_utils::TestBroadcaster, &'a test_utils::TestKeysInterface, &'b test_utils::TestFeeEstimator, &'b test_utils::TestLogger>> {
1132 let mut chanmgrs = Vec::new();
1133 for i in 0..node_count {
1134 let mut default_config = UserConfig::default();
1135 default_config.channel_options.announced_channel = true;
1136 default_config.peer_channel_config_limits.force_announced_channel_preference = false;
1137 default_config.own_channel_config.our_htlc_minimum_msat = 1000; // sanitization being done by the sender, to exerce receiver logic we need to lift of limit
1138 let node = ChannelManager::new(Network::Testnet, cfgs[i].fee_estimator, &cfgs[i].chan_monitor, cfgs[i].tx_broadcaster, cfgs[i].logger.clone(), &cfgs[i].keys_manager, if node_config[i].is_some() { node_config[i].clone().unwrap() } else { default_config }, 0);
1139 chanmgrs.push(node);
1145 pub fn create_network<'a, 'b: 'a, 'c: 'b>(node_count: usize, cfgs: &'b Vec<NodeCfg<'c>>, chan_mgrs: &'a Vec<ChannelManager<EnforcingChannelKeys, &'b TestChannelMonitor<'c>, &'c test_utils::TestBroadcaster, &'b test_utils::TestKeysInterface, &'c test_utils::TestFeeEstimator, &'c test_utils::TestLogger>>) -> Vec<Node<'a, 'b, 'c>> {
1146 let mut nodes = Vec::new();
1147 let chan_count = Rc::new(RefCell::new(0));
1148 let payment_count = Rc::new(RefCell::new(0));
1150 for i in 0..node_count {
1151 let block_notifier = chaininterface::BlockNotifier::new();
1152 block_notifier.register_listener(&cfgs[i].chan_monitor.simple_monitor as &chaininterface::ChainListener);
1153 block_notifier.register_listener(&chan_mgrs[i] as &chaininterface::ChainListener);
1154 let net_graph_msg_handler = NetGraphMsgHandler::new(None, cfgs[i].logger);
1155 nodes.push(Node{ chain_source: cfgs[i].chain_source, block_notifier,
1156 tx_broadcaster: cfgs[i].tx_broadcaster, chan_monitor: &cfgs[i].chan_monitor,
1157 keys_manager: &cfgs[i].keys_manager, node: &chan_mgrs[i], net_graph_msg_handler,
1158 node_seed: cfgs[i].node_seed, network_chan_count: chan_count.clone(),
1159 network_payment_count: payment_count.clone(), logger: cfgs[i].logger,
1166 pub const ACCEPTED_HTLC_SCRIPT_WEIGHT: usize = 138; //Here we have a diff due to HTLC CLTV expiry being < 2^15 in test
1167 pub const OFFERED_HTLC_SCRIPT_WEIGHT: usize = 133;
1169 #[derive(PartialEq)]
1170 pub enum HTLCType { NONE, TIMEOUT, SUCCESS }
1171 /// Tests that the given node has broadcast transactions for the given Channel
1173 /// First checks that the latest holder commitment tx has been broadcast, unless an explicit
1174 /// commitment_tx is provided, which may be used to test that a remote commitment tx was
1175 /// broadcast and the revoked outputs were claimed.
1177 /// Next tests that there is (or is not) a transaction that spends the commitment transaction
1178 /// that appears to be the type of HTLC transaction specified in has_htlc_tx.
1180 /// All broadcast transactions must be accounted for in one of the above three types of we'll
1182 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> {
1183 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
1184 assert!(node_txn.len() >= if commitment_tx.is_some() { 0 } else { 1 } + if has_htlc_tx == HTLCType::NONE { 0 } else { 1 });
1186 let mut res = Vec::with_capacity(2);
1187 node_txn.retain(|tx| {
1188 if tx.input.len() == 1 && tx.input[0].previous_output.txid == chan.3.txid() {
1189 check_spends!(tx, chan.3);
1190 if commitment_tx.is_none() {
1191 res.push(tx.clone());
1196 if let Some(explicit_tx) = commitment_tx {
1197 res.push(explicit_tx.clone());
1200 assert_eq!(res.len(), 1);
1202 if has_htlc_tx != HTLCType::NONE {
1203 node_txn.retain(|tx| {
1204 if tx.input.len() == 1 && tx.input[0].previous_output.txid == res[0].txid() {
1205 check_spends!(tx, res[0]);
1206 if has_htlc_tx == HTLCType::TIMEOUT {
1207 assert!(tx.lock_time != 0);
1209 assert!(tx.lock_time == 0);
1211 res.push(tx.clone());
1215 assert!(res.len() == 2 || res.len() == 3);
1217 assert_eq!(res[1], res[2]);
1221 assert!(node_txn.is_empty());
1225 /// Tests that the given node has broadcast a claim transaction against the provided revoked
1226 /// HTLC transaction.
1227 pub fn test_revoked_htlc_claim_txn_broadcast<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, revoked_tx: Transaction, commitment_revoked_tx: Transaction) {
1228 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
1229 // We may issue multiple claiming transaction on revoked outputs due to block rescan
1230 // for revoked htlc outputs
1231 if node_txn.len() != 1 && node_txn.len() != 2 && node_txn.len() != 3 { assert!(false); }
1232 node_txn.retain(|tx| {
1233 if tx.input.len() == 1 && tx.input[0].previous_output.txid == revoked_tx.txid() {
1234 check_spends!(tx, revoked_tx);
1238 node_txn.retain(|tx| {
1239 check_spends!(tx, commitment_revoked_tx);
1242 assert!(node_txn.is_empty());
1245 pub fn check_preimage_claim<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, prev_txn: &Vec<Transaction>) -> Vec<Transaction> {
1246 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
1248 assert!(node_txn.len() >= 1);
1249 assert_eq!(node_txn[0].input.len(), 1);
1250 let mut found_prev = false;
1252 for tx in prev_txn {
1253 if node_txn[0].input[0].previous_output.txid == tx.txid() {
1254 check_spends!(node_txn[0], tx);
1255 assert!(node_txn[0].input[0].witness[2].len() > 106); // must spend an htlc output
1256 assert_eq!(tx.input.len(), 1); // must spend a commitment tx
1262 assert!(found_prev);
1264 let mut res = Vec::new();
1265 mem::swap(&mut *node_txn, &mut res);
1269 pub fn get_announce_close_broadcast_events<'a, 'b, 'c>(nodes: &Vec<Node<'a, 'b, 'c>>, a: usize, b: usize) {
1270 let events_1 = nodes[a].node.get_and_clear_pending_msg_events();
1271 assert_eq!(events_1.len(), 1);
1272 let as_update = match events_1[0] {
1273 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
1276 _ => panic!("Unexpected event"),
1279 let events_2 = nodes[b].node.get_and_clear_pending_msg_events();
1280 assert_eq!(events_2.len(), 1);
1281 let bs_update = match events_2[0] {
1282 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
1285 _ => panic!("Unexpected event"),
1289 node.net_graph_msg_handler.handle_channel_update(&as_update).unwrap();
1290 node.net_graph_msg_handler.handle_channel_update(&bs_update).unwrap();
1294 macro_rules! get_channel_value_stat {
1295 ($node: expr, $channel_id: expr) => {{
1296 let chan_lock = $node.node.channel_state.lock().unwrap();
1297 let chan = chan_lock.by_id.get(&$channel_id).unwrap();
1298 chan.get_value_stat()
1302 macro_rules! get_chan_reestablish_msgs {
1303 ($src_node: expr, $dst_node: expr) => {
1305 let mut res = Vec::with_capacity(1);
1306 for msg in $src_node.node.get_and_clear_pending_msg_events() {
1307 if let MessageSendEvent::SendChannelReestablish { ref node_id, ref msg } = msg {
1308 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1309 res.push(msg.clone());
1311 panic!("Unexpected event")
1319 macro_rules! handle_chan_reestablish_msgs {
1320 ($src_node: expr, $dst_node: expr) => {
1322 let msg_events = $src_node.node.get_and_clear_pending_msg_events();
1324 let funding_locked = if let Some(&MessageSendEvent::SendFundingLocked { ref node_id, ref msg }) = msg_events.get(0) {
1326 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1332 let mut revoke_and_ack = None;
1333 let mut commitment_update = None;
1334 let order = if let Some(ev) = msg_events.get(idx) {
1337 &MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
1338 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1339 revoke_and_ack = Some(msg.clone());
1340 RAACommitmentOrder::RevokeAndACKFirst
1342 &MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
1343 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1344 commitment_update = Some(updates.clone());
1345 RAACommitmentOrder::CommitmentFirst
1347 _ => panic!("Unexpected event"),
1350 RAACommitmentOrder::CommitmentFirst
1353 if let Some(ev) = msg_events.get(idx) {
1355 &MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
1356 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1357 assert!(revoke_and_ack.is_none());
1358 revoke_and_ack = Some(msg.clone());
1360 &MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
1361 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1362 assert!(commitment_update.is_none());
1363 commitment_update = Some(updates.clone());
1365 _ => panic!("Unexpected event"),
1369 (funding_locked, revoke_and_ack, commitment_update, order)
1374 /// pending_htlc_adds includes both the holding cell and in-flight update_add_htlcs, whereas
1375 /// for claims/fails they are separated out.
1376 pub fn reconnect_nodes<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a, 'b, 'c>, send_funding_locked: (bool, bool), pending_htlc_adds: (i64, i64), pending_htlc_claims: (usize, usize), pending_cell_htlc_claims: (usize, usize), pending_cell_htlc_fails: (usize, usize), pending_raa: (bool, bool)) {
1377 node_a.node.peer_connected(&node_b.node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1378 let reestablish_1 = get_chan_reestablish_msgs!(node_a, node_b);
1379 node_b.node.peer_connected(&node_a.node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1380 let reestablish_2 = get_chan_reestablish_msgs!(node_b, node_a);
1382 if send_funding_locked.0 {
1383 // If a expects a funding_locked, it better not think it has received a revoke_and_ack
1385 for reestablish in reestablish_1.iter() {
1386 assert_eq!(reestablish.next_remote_commitment_number, 0);
1389 if send_funding_locked.1 {
1390 // If b expects a funding_locked, it better not think it has received a revoke_and_ack
1392 for reestablish in reestablish_2.iter() {
1393 assert_eq!(reestablish.next_remote_commitment_number, 0);
1396 if send_funding_locked.0 || send_funding_locked.1 {
1397 // If we expect any funding_locked's, both sides better have set
1398 // next_holder_commitment_number to 1
1399 for reestablish in reestablish_1.iter() {
1400 assert_eq!(reestablish.next_local_commitment_number, 1);
1402 for reestablish in reestablish_2.iter() {
1403 assert_eq!(reestablish.next_local_commitment_number, 1);
1407 let mut resp_1 = Vec::new();
1408 for msg in reestablish_1 {
1409 node_b.node.handle_channel_reestablish(&node_a.node.get_our_node_id(), &msg);
1410 resp_1.push(handle_chan_reestablish_msgs!(node_b, node_a));
1412 if pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 {
1413 check_added_monitors!(node_b, 1);
1415 check_added_monitors!(node_b, 0);
1418 let mut resp_2 = Vec::new();
1419 for msg in reestablish_2 {
1420 node_a.node.handle_channel_reestablish(&node_b.node.get_our_node_id(), &msg);
1421 resp_2.push(handle_chan_reestablish_msgs!(node_a, node_b));
1423 if pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 {
1424 check_added_monitors!(node_a, 1);
1426 check_added_monitors!(node_a, 0);
1429 // We don't yet support both needing updates, as that would require a different commitment dance:
1430 assert!((pending_htlc_adds.0 == 0 && pending_htlc_claims.0 == 0 && pending_cell_htlc_claims.0 == 0 && pending_cell_htlc_fails.0 == 0) ||
1431 (pending_htlc_adds.1 == 0 && pending_htlc_claims.1 == 0 && pending_cell_htlc_claims.1 == 0 && pending_cell_htlc_fails.1 == 0));
1433 for chan_msgs in resp_1.drain(..) {
1434 if send_funding_locked.0 {
1435 node_a.node.handle_funding_locked(&node_b.node.get_our_node_id(), &chan_msgs.0.unwrap());
1436 let announcement_event = node_a.node.get_and_clear_pending_msg_events();
1437 if !announcement_event.is_empty() {
1438 assert_eq!(announcement_event.len(), 1);
1439 if let MessageSendEvent::SendAnnouncementSignatures { .. } = announcement_event[0] {
1440 //TODO: Test announcement_sigs re-sending
1441 } else { panic!("Unexpected event!"); }
1444 assert!(chan_msgs.0.is_none());
1447 assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst);
1448 node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &chan_msgs.1.unwrap());
1449 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
1450 check_added_monitors!(node_a, 1);
1452 assert!(chan_msgs.1.is_none());
1454 if pending_htlc_adds.0 != 0 || pending_htlc_claims.0 != 0 || pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 {
1455 let commitment_update = chan_msgs.2.unwrap();
1456 if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed
1457 assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.0 as usize);
1459 assert!(commitment_update.update_add_htlcs.is_empty());
1461 assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.0 + pending_cell_htlc_claims.0);
1462 assert_eq!(commitment_update.update_fail_htlcs.len(), pending_cell_htlc_fails.0);
1463 assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
1464 for update_add in commitment_update.update_add_htlcs {
1465 node_a.node.handle_update_add_htlc(&node_b.node.get_our_node_id(), &update_add);
1467 for update_fulfill in commitment_update.update_fulfill_htlcs {
1468 node_a.node.handle_update_fulfill_htlc(&node_b.node.get_our_node_id(), &update_fulfill);
1470 for update_fail in commitment_update.update_fail_htlcs {
1471 node_a.node.handle_update_fail_htlc(&node_b.node.get_our_node_id(), &update_fail);
1474 if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed
1475 commitment_signed_dance!(node_a, node_b, commitment_update.commitment_signed, false);
1477 node_a.node.handle_commitment_signed(&node_b.node.get_our_node_id(), &commitment_update.commitment_signed);
1478 check_added_monitors!(node_a, 1);
1479 let as_revoke_and_ack = get_event_msg!(node_a, MessageSendEvent::SendRevokeAndACK, node_b.node.get_our_node_id());
1480 // No commitment_signed so get_event_msg's assert(len == 1) passes
1481 node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &as_revoke_and_ack);
1482 assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
1483 check_added_monitors!(node_b, 1);
1486 assert!(chan_msgs.2.is_none());
1490 for chan_msgs in resp_2.drain(..) {
1491 if send_funding_locked.1 {
1492 node_b.node.handle_funding_locked(&node_a.node.get_our_node_id(), &chan_msgs.0.unwrap());
1493 let announcement_event = node_b.node.get_and_clear_pending_msg_events();
1494 if !announcement_event.is_empty() {
1495 assert_eq!(announcement_event.len(), 1);
1496 if let MessageSendEvent::SendAnnouncementSignatures { .. } = announcement_event[0] {
1497 //TODO: Test announcement_sigs re-sending
1498 } else { panic!("Unexpected event!"); }
1501 assert!(chan_msgs.0.is_none());
1504 assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst);
1505 node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &chan_msgs.1.unwrap());
1506 assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
1507 check_added_monitors!(node_b, 1);
1509 assert!(chan_msgs.1.is_none());
1511 if pending_htlc_adds.1 != 0 || pending_htlc_claims.1 != 0 || pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 {
1512 let commitment_update = chan_msgs.2.unwrap();
1513 if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed
1514 assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.1 as usize);
1516 assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.0 + pending_cell_htlc_claims.0);
1517 assert_eq!(commitment_update.update_fail_htlcs.len(), pending_cell_htlc_fails.0);
1518 assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
1519 for update_add in commitment_update.update_add_htlcs {
1520 node_b.node.handle_update_add_htlc(&node_a.node.get_our_node_id(), &update_add);
1522 for update_fulfill in commitment_update.update_fulfill_htlcs {
1523 node_b.node.handle_update_fulfill_htlc(&node_a.node.get_our_node_id(), &update_fulfill);
1525 for update_fail in commitment_update.update_fail_htlcs {
1526 node_b.node.handle_update_fail_htlc(&node_a.node.get_our_node_id(), &update_fail);
1529 if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed
1530 commitment_signed_dance!(node_b, node_a, commitment_update.commitment_signed, false);
1532 node_b.node.handle_commitment_signed(&node_a.node.get_our_node_id(), &commitment_update.commitment_signed);
1533 check_added_monitors!(node_b, 1);
1534 let bs_revoke_and_ack = get_event_msg!(node_b, MessageSendEvent::SendRevokeAndACK, node_a.node.get_our_node_id());
1535 // No commitment_signed so get_event_msg's assert(len == 1) passes
1536 node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &bs_revoke_and_ack);
1537 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
1538 check_added_monitors!(node_a, 1);
1541 assert!(chan_msgs.2.is_none());