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::transaction::OutPoint;
15 use ln::channelmanager::{ChannelManager, ChannelManagerReadArgs, RAACommitmentOrder, PaymentPreimage, PaymentHash, PaymentSecret, PaymentSendFailure};
16 use ln::channelmonitor::ChannelMonitor;
17 use routing::router::{Route, get_route};
18 use routing::network_graph::{NetGraphMsgHandler, NetworkGraph};
19 use ln::features::InitFeatures;
21 use ln::msgs::{ChannelMessageHandler,RoutingMessageHandler};
22 use util::enforcing_trait_impls::EnforcingChannelKeys;
24 use util::test_utils::TestChainMonitor;
25 use util::events::{Event, EventsProvider, MessageSendEvent, MessageSendEventsProvider};
26 use util::errors::APIError;
27 use util::config::UserConfig;
28 use util::ser::{ReadableArgs, Writeable, Readable};
30 use bitcoin::blockdata::block::{Block, BlockHeader};
31 use bitcoin::blockdata::transaction::{Transaction, TxOut};
32 use bitcoin::network::constants::Network;
34 use bitcoin::hashes::sha256::Hash as Sha256;
35 use bitcoin::hashes::Hash;
36 use bitcoin::hash_types::BlockHash;
38 use bitcoin::secp256k1::key::PublicKey;
40 use std::cell::RefCell;
44 use std::collections::HashMap;
46 pub const CHAN_CONFIRM_DEPTH: u32 = 100;
48 pub fn confirm_transaction<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, tx: &Transaction) {
49 let dummy_tx = Transaction { version: 0, lock_time: 0, input: Vec::new(), output: Vec::new() };
50 let dummy_tx_count = tx.version as usize;
51 let mut block = Block {
52 header: BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 },
53 txdata: vec![dummy_tx; dummy_tx_count],
55 block.txdata.push(tx.clone());
56 connect_block(node, &block, 1);
57 for i in 2..CHAN_CONFIRM_DEPTH {
59 header: BlockHeader { version: 0x20000000, prev_blockhash: block.header.block_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 },
62 connect_block(node, &block, i);
66 pub fn connect_blocks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, depth: u32, height: u32, parent: bool, prev_blockhash: BlockHash) -> BlockHash {
67 let mut block = Block {
68 header: BlockHeader { version: 0x2000000, prev_blockhash: if parent { prev_blockhash } else { Default::default() }, merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 },
71 connect_block(node, &block, height + 1);
72 for i in 2..depth + 1 {
74 header: BlockHeader { version: 0x20000000, prev_blockhash: block.header.block_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 },
77 connect_block(node, &block, height + i);
79 block.header.block_hash()
82 pub fn connect_block<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, block: &Block, height: u32) {
83 let txdata: Vec<_> = block.txdata.iter().enumerate().collect();
84 while node.chain_monitor.chain_monitor.block_connected(&block.header, &txdata, height) {}
85 node.node.block_connected(&block.header, &txdata, height);
88 pub fn disconnect_block<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, header: &BlockHeader, height: u32) {
89 node.chain_monitor.chain_monitor.block_disconnected(header, height);
90 node.node.block_disconnected(header);
93 pub struct TestChanMonCfg {
94 pub tx_broadcaster: test_utils::TestBroadcaster,
95 pub fee_estimator: test_utils::TestFeeEstimator,
96 pub chain_source: test_utils::TestChainSource,
97 pub logger: test_utils::TestLogger,
100 pub struct NodeCfg<'a> {
101 pub chain_source: &'a test_utils::TestChainSource,
102 pub tx_broadcaster: &'a test_utils::TestBroadcaster,
103 pub fee_estimator: &'a test_utils::TestFeeEstimator,
104 pub chain_monitor: test_utils::TestChainMonitor<'a>,
105 pub keys_manager: test_utils::TestKeysInterface,
106 pub logger: &'a test_utils::TestLogger,
107 pub node_seed: [u8; 32],
110 pub struct Node<'a, 'b: 'a, 'c: 'b> {
111 pub chain_source: &'c test_utils::TestChainSource,
112 pub tx_broadcaster: &'c test_utils::TestBroadcaster,
113 pub chain_monitor: &'b test_utils::TestChainMonitor<'c>,
114 pub keys_manager: &'b test_utils::TestKeysInterface,
115 pub node: &'a ChannelManager<EnforcingChannelKeys, &'b TestChainMonitor<'c>, &'c test_utils::TestBroadcaster, &'b test_utils::TestKeysInterface, &'c test_utils::TestFeeEstimator, &'c test_utils::TestLogger>,
116 pub net_graph_msg_handler: NetGraphMsgHandler<&'c test_utils::TestChainSource, &'c test_utils::TestLogger>,
117 pub node_seed: [u8; 32],
118 pub network_payment_count: Rc<RefCell<u8>>,
119 pub network_chan_count: Rc<RefCell<u32>>,
120 pub logger: &'c test_utils::TestLogger,
123 impl<'a, 'b, 'c> Drop for Node<'a, 'b, 'c> {
125 if !::std::thread::panicking() {
126 // Check that we processed all pending events
127 assert!(self.node.get_and_clear_pending_msg_events().is_empty());
128 assert!(self.node.get_and_clear_pending_events().is_empty());
129 assert!(self.chain_monitor.added_monitors.lock().unwrap().is_empty());
131 // Check that if we serialize the Router, we can deserialize it again.
133 let mut w = test_utils::TestVecWriter(Vec::new());
134 let network_graph_ser = self.net_graph_msg_handler.network_graph.read().unwrap();
135 network_graph_ser.write(&mut w).unwrap();
136 let network_graph_deser = <NetworkGraph>::read(&mut ::std::io::Cursor::new(&w.0)).unwrap();
137 assert!(network_graph_deser == *self.net_graph_msg_handler.network_graph.read().unwrap());
138 let net_graph_msg_handler = NetGraphMsgHandler::from_net_graph(
139 Some(self.chain_source), self.logger, network_graph_deser
141 let mut chan_progress = 0;
143 let orig_announcements = self.net_graph_msg_handler.get_next_channel_announcements(chan_progress, 255);
144 let deserialized_announcements = net_graph_msg_handler.get_next_channel_announcements(chan_progress, 255);
145 assert!(orig_announcements == deserialized_announcements);
146 chan_progress = match orig_announcements.last() {
147 Some(announcement) => announcement.0.contents.short_channel_id + 1,
151 let mut node_progress = None;
153 let orig_announcements = self.net_graph_msg_handler.get_next_node_announcements(node_progress.as_ref(), 255);
154 let deserialized_announcements = net_graph_msg_handler.get_next_node_announcements(node_progress.as_ref(), 255);
155 assert!(orig_announcements == deserialized_announcements);
156 node_progress = match orig_announcements.last() {
157 Some(announcement) => Some(announcement.contents.node_id),
163 // Check that if we serialize and then deserialize all our channel monitors we get the
164 // same set of outputs to watch for on chain as we have now. Note that if we write
165 // tests that fully close channels and remove the monitors at some point this may break.
166 let feeest = test_utils::TestFeeEstimator { sat_per_kw: 253 };
167 let mut deserialized_monitors = Vec::new();
169 let old_monitors = self.chain_monitor.chain_monitor.monitors.lock().unwrap();
170 for (_, old_monitor) in old_monitors.iter() {
171 let mut w = test_utils::TestVecWriter(Vec::new());
172 old_monitor.write_for_disk(&mut w).unwrap();
173 let (_, deserialized_monitor) = <(BlockHash, ChannelMonitor<EnforcingChannelKeys>)>::read(
174 &mut ::std::io::Cursor::new(&w.0)).unwrap();
175 deserialized_monitors.push(deserialized_monitor);
179 // Before using all the new monitors to check the watch outpoints, use the full set of
180 // them to ensure we can write and reload our ChannelManager.
182 let mut channel_monitors = HashMap::new();
183 for monitor in deserialized_monitors.iter_mut() {
184 channel_monitors.insert(monitor.get_funding_txo().0, monitor);
187 let mut w = test_utils::TestVecWriter(Vec::new());
188 self.node.write(&mut w).unwrap();
189 <(BlockHash, ChannelManager<EnforcingChannelKeys, &test_utils::TestChainMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestLogger>)>::read(&mut ::std::io::Cursor::new(w.0), ChannelManagerReadArgs {
190 default_config: UserConfig::default(),
191 keys_manager: self.keys_manager,
192 fee_estimator: &test_utils::TestFeeEstimator { sat_per_kw: 253 },
193 chain_monitor: self.chain_monitor,
194 tx_broadcaster: self.tx_broadcaster.clone(),
195 logger: &test_utils::TestLogger::new(),
200 let chain_source = test_utils::TestChainSource::new(Network::Testnet);
201 let chain_monitor = test_utils::TestChainMonitor::new(Some(&chain_source), self.tx_broadcaster.clone(), &self.logger, &feeest);
202 for deserialized_monitor in deserialized_monitors.drain(..) {
203 if let Err(_) = chain_monitor.watch_channel(deserialized_monitor.get_funding_txo().0, deserialized_monitor) {
207 assert_eq!(*chain_source.watched_txn.lock().unwrap(), *self.chain_source.watched_txn.lock().unwrap());
208 assert_eq!(*chain_source.watched_outputs.lock().unwrap(), *self.chain_source.watched_outputs.lock().unwrap());
213 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) {
214 create_chan_between_nodes_with_value(node_a, node_b, 100000, 10001, a_flags, b_flags)
217 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) {
218 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);
219 let (announcement, as_update, bs_update) = create_chan_between_nodes_with_value_b(node_a, node_b, &funding_locked);
220 (announcement, as_update, bs_update, channel_id, tx)
223 macro_rules! get_revoke_commit_msgs {
224 ($node: expr, $node_id: expr) => {
226 let events = $node.node.get_and_clear_pending_msg_events();
227 assert_eq!(events.len(), 2);
229 MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
230 assert_eq!(*node_id, $node_id);
233 _ => panic!("Unexpected event"),
235 MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
236 assert_eq!(*node_id, $node_id);
237 assert!(updates.update_add_htlcs.is_empty());
238 assert!(updates.update_fulfill_htlcs.is_empty());
239 assert!(updates.update_fail_htlcs.is_empty());
240 assert!(updates.update_fail_malformed_htlcs.is_empty());
241 assert!(updates.update_fee.is_none());
242 updates.commitment_signed.clone()
244 _ => panic!("Unexpected event"),
250 macro_rules! get_event_msg {
251 ($node: expr, $event_type: path, $node_id: expr) => {
253 let events = $node.node.get_and_clear_pending_msg_events();
254 assert_eq!(events.len(), 1);
256 $event_type { ref node_id, ref msg } => {
257 assert_eq!(*node_id, $node_id);
260 _ => panic!("Unexpected event"),
266 macro_rules! get_htlc_update_msgs {
267 ($node: expr, $node_id: expr) => {
269 let events = $node.node.get_and_clear_pending_msg_events();
270 assert_eq!(events.len(), 1);
272 MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
273 assert_eq!(*node_id, $node_id);
276 _ => panic!("Unexpected event"),
282 macro_rules! get_feerate {
283 ($node: expr, $channel_id: expr) => {
285 let chan_lock = $node.node.channel_state.lock().unwrap();
286 let chan = chan_lock.by_id.get(&$channel_id).unwrap();
292 macro_rules! get_local_commitment_txn {
293 ($node: expr, $channel_id: expr) => {
295 let mut monitors = $node.chain_monitor.chain_monitor.monitors.lock().unwrap();
296 let mut commitment_txn = None;
297 for (funding_txo, monitor) in monitors.iter_mut() {
298 if funding_txo.to_channel_id() == $channel_id {
299 commitment_txn = Some(monitor.unsafe_get_latest_holder_commitment_txn(&$node.logger));
303 commitment_txn.unwrap()
308 macro_rules! unwrap_send_err {
309 ($res: expr, $all_failed: expr, $type: pat, $check: expr) => {
311 &Err(PaymentSendFailure::AllFailedRetrySafe(ref fails)) if $all_failed => {
312 assert_eq!(fails.len(), 1);
318 &Err(PaymentSendFailure::PartialFailure(ref fails)) if !$all_failed => {
319 assert_eq!(fails.len(), 1);
321 Err($type) => { $check },
330 macro_rules! check_added_monitors {
331 ($node: expr, $count: expr) => {
333 let mut added_monitors = $node.chain_monitor.added_monitors.lock().unwrap();
334 assert_eq!(added_monitors.len(), $count);
335 added_monitors.clear();
340 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) {
341 let chan_id = *node.network_chan_count.borrow();
343 let events = node.node.get_and_clear_pending_events();
344 assert_eq!(events.len(), 1);
346 Event::FundingGenerationReady { ref temporary_channel_id, ref channel_value_satoshis, ref output_script, user_channel_id } => {
347 assert_eq!(*channel_value_satoshis, expected_chan_value);
348 assert_eq!(user_channel_id, expected_user_chan_id);
350 let tx = Transaction { version: chan_id as i32, lock_time: 0, input: Vec::new(), output: vec![TxOut {
351 value: *channel_value_satoshis, script_pubkey: output_script.clone(),
353 let funding_outpoint = OutPoint { txid: tx.txid(), index: 0 };
354 (*temporary_channel_id, tx, funding_outpoint)
356 _ => panic!("Unexpected event"),
360 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 {
361 node_a.node.create_channel(node_b.node.get_our_node_id(), channel_value, push_msat, 42, None).unwrap();
362 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()));
363 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()));
365 let (temporary_channel_id, tx, funding_output) = create_funding_transaction(node_a, channel_value, 42);
367 node_a.node.funding_transaction_generated(&temporary_channel_id, funding_output);
368 check_added_monitors!(node_a, 0);
370 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()));
372 let mut added_monitors = node_b.chain_monitor.added_monitors.lock().unwrap();
373 assert_eq!(added_monitors.len(), 1);
374 assert_eq!(added_monitors[0].0, funding_output);
375 added_monitors.clear();
378 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()));
380 let mut added_monitors = node_a.chain_monitor.added_monitors.lock().unwrap();
381 assert_eq!(added_monitors.len(), 1);
382 assert_eq!(added_monitors[0].0, funding_output);
383 added_monitors.clear();
386 let events_4 = node_a.node.get_and_clear_pending_events();
387 assert_eq!(events_4.len(), 1);
389 Event::FundingBroadcastSafe { ref funding_txo, user_channel_id } => {
390 assert_eq!(user_channel_id, 42);
391 assert_eq!(*funding_txo, funding_output);
393 _ => panic!("Unexpected event"),
399 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) {
400 confirm_transaction(node_conf, tx);
401 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()));
404 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]) {
406 let events_6 = node_conf.node.get_and_clear_pending_msg_events();
407 assert_eq!(events_6.len(), 2);
408 ((match events_6[0] {
409 MessageSendEvent::SendFundingLocked { ref node_id, ref msg } => {
410 channel_id = msg.channel_id.clone();
411 assert_eq!(*node_id, node_recv.node.get_our_node_id());
414 _ => panic!("Unexpected event"),
415 }, match events_6[1] {
416 MessageSendEvent::SendAnnouncementSignatures { ref node_id, ref msg } => {
417 assert_eq!(*node_id, node_recv.node.get_our_node_id());
420 _ => panic!("Unexpected event"),
424 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]) {
425 create_chan_between_nodes_with_value_confirm_first(node_a, node_b, tx);
426 confirm_transaction(node_a, tx);
427 create_chan_between_nodes_with_value_confirm_second(node_b, node_a)
430 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) {
431 let tx = create_chan_between_nodes_with_value_init(node_a, node_b, channel_value, push_msat, a_flags, b_flags);
432 let (msgs, chan_id) = create_chan_between_nodes_with_value_confirm(node_a, node_b, &tx);
436 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) {
437 node_b.node.handle_funding_locked(&node_a.node.get_our_node_id(), &as_funding_msgs.0);
438 let bs_announcement_sigs = get_event_msg!(node_b, MessageSendEvent::SendAnnouncementSignatures, node_a.node.get_our_node_id());
439 node_b.node.handle_announcement_signatures(&node_a.node.get_our_node_id(), &as_funding_msgs.1);
441 let events_7 = node_b.node.get_and_clear_pending_msg_events();
442 assert_eq!(events_7.len(), 1);
443 let (announcement, bs_update) = match events_7[0] {
444 MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
447 _ => panic!("Unexpected event"),
450 node_a.node.handle_announcement_signatures(&node_b.node.get_our_node_id(), &bs_announcement_sigs);
451 let events_8 = node_a.node.get_and_clear_pending_msg_events();
452 assert_eq!(events_8.len(), 1);
453 let as_update = match events_8[0] {
454 MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
455 assert!(*announcement == *msg);
456 assert_eq!(update_msg.contents.short_channel_id, announcement.contents.short_channel_id);
457 assert_eq!(update_msg.contents.short_channel_id, bs_update.contents.short_channel_id);
460 _ => panic!("Unexpected event"),
463 *node_a.network_chan_count.borrow_mut() += 1;
465 ((*announcement).clone(), (*as_update).clone(), (*bs_update).clone())
468 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) {
469 create_announced_chan_between_nodes_with_value(nodes, a, b, 100000, 10001, a_flags, b_flags)
472 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) {
473 let chan_announcement = create_chan_between_nodes_with_value(&nodes[a], &nodes[b], channel_value, push_msat, a_flags, b_flags);
475 nodes[a].node.broadcast_node_announcement([0, 0, 0], [0; 32], Vec::new());
476 let a_events = nodes[a].node.get_and_clear_pending_msg_events();
477 assert_eq!(a_events.len(), 1);
478 let a_node_announcement = match a_events[0] {
479 MessageSendEvent::BroadcastNodeAnnouncement { ref msg } => {
482 _ => panic!("Unexpected event"),
485 nodes[b].node.broadcast_node_announcement([1, 1, 1], [1; 32], Vec::new());
486 let b_events = nodes[b].node.get_and_clear_pending_msg_events();
487 assert_eq!(b_events.len(), 1);
488 let b_node_announcement = match b_events[0] {
489 MessageSendEvent::BroadcastNodeAnnouncement { ref msg } => {
492 _ => panic!("Unexpected event"),
496 assert!(node.net_graph_msg_handler.handle_channel_announcement(&chan_announcement.0).unwrap());
497 node.net_graph_msg_handler.handle_channel_update(&chan_announcement.1).unwrap();
498 node.net_graph_msg_handler.handle_channel_update(&chan_announcement.2).unwrap();
499 node.net_graph_msg_handler.handle_node_announcement(&a_node_announcement).unwrap();
500 node.net_graph_msg_handler.handle_node_announcement(&b_node_announcement).unwrap();
502 (chan_announcement.1, chan_announcement.2, chan_announcement.3, chan_announcement.4)
505 macro_rules! check_spends {
506 ($tx: expr, $($spends_txn: expr),*) => {
508 $tx.verify(|out_point| {
510 if out_point.txid == $spends_txn.txid() {
511 return $spends_txn.output.get(out_point.vout as usize).cloned()
520 macro_rules! get_closing_signed_broadcast {
521 ($node: expr, $dest_pubkey: expr) => {
523 let events = $node.get_and_clear_pending_msg_events();
524 assert!(events.len() == 1 || events.len() == 2);
525 (match events[events.len() - 1] {
526 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
527 assert_eq!(msg.contents.flags & 2, 2);
530 _ => panic!("Unexpected event"),
531 }, if events.len() == 2 {
533 MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => {
534 assert_eq!(*node_id, $dest_pubkey);
537 _ => panic!("Unexpected event"),
544 macro_rules! check_closed_broadcast {
545 ($node: expr, $with_error_msg: expr) => {{
546 let events = $node.node.get_and_clear_pending_msg_events();
547 assert_eq!(events.len(), if $with_error_msg { 2 } else { 1 });
549 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
550 assert_eq!(msg.contents.flags & 2, 2);
552 _ => panic!("Unexpected event"),
556 MessageSendEvent::HandleError { action: ErrorAction::SendErrorMessage { ref msg }, node_id: _ } => {
557 // TODO: Check node_id
560 _ => panic!("Unexpected event"),
566 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) {
567 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) };
568 let (node_b, broadcaster_b) = if close_inbound_first { (&outbound_node.node, &outbound_node.tx_broadcaster) } else { (&inbound_node.node, &inbound_node.tx_broadcaster) };
571 node_a.close_channel(channel_id).unwrap();
572 node_b.handle_shutdown(&node_a.get_our_node_id(), &get_event_msg!(struct_a, MessageSendEvent::SendShutdown, node_b.get_our_node_id()));
574 let events_1 = node_b.get_and_clear_pending_msg_events();
575 assert!(events_1.len() >= 1);
576 let shutdown_b = match events_1[0] {
577 MessageSendEvent::SendShutdown { ref node_id, ref msg } => {
578 assert_eq!(node_id, &node_a.get_our_node_id());
581 _ => panic!("Unexpected event"),
584 let closing_signed_b = if !close_inbound_first {
585 assert_eq!(events_1.len(), 1);
588 Some(match events_1[1] {
589 MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => {
590 assert_eq!(node_id, &node_a.get_our_node_id());
593 _ => panic!("Unexpected event"),
597 node_a.handle_shutdown(&node_b.get_our_node_id(), &shutdown_b);
598 let (as_update, bs_update) = if close_inbound_first {
599 assert!(node_a.get_and_clear_pending_msg_events().is_empty());
600 node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap());
601 assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1);
602 tx_a = broadcaster_a.txn_broadcasted.lock().unwrap().remove(0);
603 let (as_update, closing_signed_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id());
605 node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a.unwrap());
606 let (bs_update, none_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id());
607 assert!(none_b.is_none());
608 assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1);
609 tx_b = broadcaster_b.txn_broadcasted.lock().unwrap().remove(0);
610 (as_update, bs_update)
612 let closing_signed_a = get_event_msg!(struct_a, MessageSendEvent::SendClosingSigned, node_b.get_our_node_id());
614 node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a);
615 assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1);
616 tx_b = broadcaster_b.txn_broadcasted.lock().unwrap().remove(0);
617 let (bs_update, closing_signed_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id());
619 node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap());
620 let (as_update, none_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id());
621 assert!(none_a.is_none());
622 assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1);
623 tx_a = broadcaster_a.txn_broadcasted.lock().unwrap().remove(0);
624 (as_update, bs_update)
626 assert_eq!(tx_a, tx_b);
627 check_spends!(tx_a, funding_tx);
629 (as_update, bs_update, tx_a)
632 pub struct SendEvent {
633 pub node_id: PublicKey,
634 pub msgs: Vec<msgs::UpdateAddHTLC>,
635 pub commitment_msg: msgs::CommitmentSigned,
638 pub fn from_commitment_update(node_id: PublicKey, updates: msgs::CommitmentUpdate) -> SendEvent {
639 assert!(updates.update_fulfill_htlcs.is_empty());
640 assert!(updates.update_fail_htlcs.is_empty());
641 assert!(updates.update_fail_malformed_htlcs.is_empty());
642 assert!(updates.update_fee.is_none());
643 SendEvent { node_id: node_id, msgs: updates.update_add_htlcs, commitment_msg: updates.commitment_signed }
646 pub fn from_event(event: MessageSendEvent) -> SendEvent {
648 MessageSendEvent::UpdateHTLCs { node_id, updates } => SendEvent::from_commitment_update(node_id, updates),
649 _ => panic!("Unexpected event type!"),
653 pub fn from_node<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>) -> SendEvent {
654 let mut events = node.node.get_and_clear_pending_msg_events();
655 assert_eq!(events.len(), 1);
656 SendEvent::from_event(events.pop().unwrap())
660 macro_rules! commitment_signed_dance {
661 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr, true /* skip last step */) => {
663 check_added_monitors!($node_a, 0);
664 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
665 $node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed);
666 check_added_monitors!($node_a, 1);
667 commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, false);
670 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, true /* return extra message */, true /* return last RAA */) => {
672 let (as_revoke_and_ack, as_commitment_signed) = get_revoke_commit_msgs!($node_a, $node_b.node.get_our_node_id());
673 check_added_monitors!($node_b, 0);
674 assert!($node_b.node.get_and_clear_pending_msg_events().is_empty());
675 $node_b.node.handle_revoke_and_ack(&$node_a.node.get_our_node_id(), &as_revoke_and_ack);
676 assert!($node_b.node.get_and_clear_pending_msg_events().is_empty());
677 check_added_monitors!($node_b, 1);
678 $node_b.node.handle_commitment_signed(&$node_a.node.get_our_node_id(), &as_commitment_signed);
679 let (bs_revoke_and_ack, extra_msg_option) = {
680 let events = $node_b.node.get_and_clear_pending_msg_events();
681 assert!(events.len() <= 2);
683 MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
684 assert_eq!(*node_id, $node_a.node.get_our_node_id());
687 _ => panic!("Unexpected event"),
688 }, events.get(1).map(|e| e.clone()))
690 check_added_monitors!($node_b, 1);
692 assert!($node_a.node.get_and_clear_pending_events().is_empty());
693 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
695 (extra_msg_option, bs_revoke_and_ack)
698 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr, true /* skip last step */, false /* return extra message */, true /* return last RAA */) => {
700 check_added_monitors!($node_a, 0);
701 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
702 $node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed);
703 check_added_monitors!($node_a, 1);
704 let (extra_msg_option, bs_revoke_and_ack) = commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true, true);
705 assert!(extra_msg_option.is_none());
709 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, true /* return extra message */) => {
711 let (extra_msg_option, bs_revoke_and_ack) = commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true, true);
712 $node_a.node.handle_revoke_and_ack(&$node_b.node.get_our_node_id(), &bs_revoke_and_ack);
713 check_added_monitors!($node_a, 1);
717 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, false /* no extra message */) => {
719 assert!(commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true).is_none());
722 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr) => {
724 commitment_signed_dance!($node_a, $node_b, $commitment_signed, $fail_backwards, true);
726 expect_pending_htlcs_forwardable!($node_a);
727 check_added_monitors!($node_a, 1);
729 let channel_state = $node_a.node.channel_state.lock().unwrap();
730 assert_eq!(channel_state.pending_msg_events.len(), 1);
731 if let MessageSendEvent::UpdateHTLCs { ref node_id, .. } = channel_state.pending_msg_events[0] {
732 assert_ne!(*node_id, $node_b.node.get_our_node_id());
733 } else { panic!("Unexpected event"); }
735 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
741 macro_rules! get_payment_preimage_hash {
744 let payment_preimage = PaymentPreimage([*$node.network_payment_count.borrow(); 32]);
745 *$node.network_payment_count.borrow_mut() += 1;
746 let payment_hash = PaymentHash(Sha256::hash(&payment_preimage.0[..]).into_inner());
747 (payment_preimage, payment_hash)
752 macro_rules! expect_pending_htlcs_forwardable_ignore {
754 let events = $node.node.get_and_clear_pending_events();
755 assert_eq!(events.len(), 1);
757 Event::PendingHTLCsForwardable { .. } => { },
758 _ => panic!("Unexpected event"),
763 macro_rules! expect_pending_htlcs_forwardable {
765 expect_pending_htlcs_forwardable_ignore!($node);
766 $node.node.process_pending_htlc_forwards();
770 macro_rules! expect_payment_received {
771 ($node: expr, $expected_payment_hash: expr, $expected_recv_value: expr) => {
772 let events = $node.node.get_and_clear_pending_events();
773 assert_eq!(events.len(), 1);
775 Event::PaymentReceived { ref payment_hash, ref payment_secret, amt } => {
776 assert_eq!($expected_payment_hash, *payment_hash);
777 assert_eq!(None, *payment_secret);
778 assert_eq!($expected_recv_value, amt);
780 _ => panic!("Unexpected event"),
785 macro_rules! expect_payment_sent {
786 ($node: expr, $expected_payment_preimage: expr) => {
787 let events = $node.node.get_and_clear_pending_events();
788 assert_eq!(events.len(), 1);
790 Event::PaymentSent { ref payment_preimage } => {
791 assert_eq!($expected_payment_preimage, *payment_preimage);
793 _ => panic!("Unexpected event"),
798 macro_rules! expect_payment_failed {
799 ($node: expr, $expected_payment_hash: expr, $rejected_by_dest: expr $(, $expected_error_code: expr, $expected_error_data: expr)*) => {
800 let events = $node.node.get_and_clear_pending_events();
801 assert_eq!(events.len(), 1);
803 Event::PaymentFailed { ref payment_hash, rejected_by_dest, ref error_code, ref error_data } => {
804 assert_eq!(*payment_hash, $expected_payment_hash);
805 assert_eq!(rejected_by_dest, $rejected_by_dest);
806 assert!(error_code.is_some());
807 assert!(error_data.is_some());
809 assert_eq!(error_code.unwrap(), $expected_error_code);
810 assert_eq!(&error_data.as_ref().unwrap()[..], $expected_error_data);
813 _ => panic!("Unexpected event"),
818 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>) {
819 origin_node.node.send_payment(&route, our_payment_hash, &our_payment_secret).unwrap();
820 check_added_monitors!(origin_node, expected_paths.len());
821 pass_along_route(origin_node, expected_paths, recv_value, our_payment_hash, our_payment_secret);
824 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) {
825 let mut payment_event = SendEvent::from_event(ev);
826 let mut prev_node = origin_node;
828 for (idx, &node) in expected_path.iter().enumerate() {
829 assert_eq!(node.node.get_our_node_id(), payment_event.node_id);
831 node.node.handle_update_add_htlc(&prev_node.node.get_our_node_id(), &payment_event.msgs[0]);
832 check_added_monitors!(node, 0);
833 commitment_signed_dance!(node, prev_node, payment_event.commitment_msg, false);
835 expect_pending_htlcs_forwardable!(node);
837 if idx == expected_path.len() - 1 {
838 let events_2 = node.node.get_and_clear_pending_events();
839 if payment_received_expected {
840 assert_eq!(events_2.len(), 1);
842 Event::PaymentReceived { ref payment_hash, ref payment_secret, amt } => {
843 assert_eq!(our_payment_hash, *payment_hash);
844 assert_eq!(our_payment_secret, *payment_secret);
845 assert_eq!(amt, recv_value);
847 _ => panic!("Unexpected event"),
850 assert!(events_2.is_empty());
853 let mut events_2 = node.node.get_and_clear_pending_msg_events();
854 assert_eq!(events_2.len(), 1);
855 check_added_monitors!(node, 1);
856 payment_event = SendEvent::from_event(events_2.remove(0));
857 assert_eq!(payment_event.msgs.len(), 1);
864 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>) {
865 let mut events = origin_node.node.get_and_clear_pending_msg_events();
866 assert_eq!(events.len(), expected_route.len());
867 for (path_idx, (ev, expected_path)) in events.drain(..).zip(expected_route.iter()).enumerate() {
868 // Once we've gotten through all the HTLCs, the last one should result in a
869 // PaymentReceived (but each previous one should not!), .
870 let expect_payment = path_idx == expected_route.len() - 1;
871 pass_along_path(origin_node, expected_path, recv_value, our_payment_hash.clone(), our_payment_secret, ev, expect_payment);
875 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) {
876 send_along_route_with_secret(origin_node, route, &[expected_route], recv_value, our_payment_hash, None);
879 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) {
880 let (our_payment_preimage, our_payment_hash) = get_payment_preimage_hash!(origin_node);
881 send_along_route_with_hash(origin_node, route, expected_route, recv_value, our_payment_hash);
882 (our_payment_preimage, our_payment_hash)
885 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) {
886 for path in expected_paths.iter() {
887 assert_eq!(path.last().unwrap().node.get_our_node_id(), expected_paths[0].last().unwrap().node.get_our_node_id());
889 assert!(expected_paths[0].last().unwrap().node.claim_funds(our_payment_preimage, &our_payment_secret, expected_amount));
890 check_added_monitors!(expected_paths[0].last().unwrap(), expected_paths.len());
892 macro_rules! msgs_from_ev {
895 &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 } } => {
896 assert!(update_add_htlcs.is_empty());
897 assert_eq!(update_fulfill_htlcs.len(), 1);
898 assert!(update_fail_htlcs.is_empty());
899 assert!(update_fail_malformed_htlcs.is_empty());
900 assert!(update_fee.is_none());
901 ((update_fulfill_htlcs[0].clone(), commitment_signed.clone()), node_id.clone())
903 _ => panic!("Unexpected event"),
907 let mut per_path_msgs: Vec<((msgs::UpdateFulfillHTLC, msgs::CommitmentSigned), PublicKey)> = Vec::with_capacity(expected_paths.len());
908 let events = expected_paths[0].last().unwrap().node.get_and_clear_pending_msg_events();
909 assert_eq!(events.len(), expected_paths.len());
910 for ev in events.iter() {
911 per_path_msgs.push(msgs_from_ev!(ev));
914 for (expected_route, (path_msgs, next_hop)) in expected_paths.iter().zip(per_path_msgs.drain(..)) {
915 let mut next_msgs = Some(path_msgs);
916 let mut expected_next_node = next_hop;
918 macro_rules! last_update_fulfill_dance {
919 ($node: expr, $prev_node: expr) => {
921 $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
922 check_added_monitors!($node, 0);
923 assert!($node.node.get_and_clear_pending_msg_events().is_empty());
924 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, false);
928 macro_rules! mid_update_fulfill_dance {
929 ($node: expr, $prev_node: expr, $new_msgs: expr) => {
931 $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
932 check_added_monitors!($node, 1);
933 let new_next_msgs = if $new_msgs {
934 let events = $node.node.get_and_clear_pending_msg_events();
935 assert_eq!(events.len(), 1);
936 let (res, nexthop) = msgs_from_ev!(&events[0]);
937 expected_next_node = nexthop;
940 assert!($node.node.get_and_clear_pending_msg_events().is_empty());
943 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, false);
944 next_msgs = new_next_msgs;
949 let mut prev_node = expected_route.last().unwrap();
950 for (idx, node) in expected_route.iter().rev().enumerate().skip(1) {
951 assert_eq!(expected_next_node, node.node.get_our_node_id());
952 let update_next_msgs = !skip_last || idx != expected_route.len() - 1;
953 if next_msgs.is_some() {
954 mid_update_fulfill_dance!(node, prev_node, update_next_msgs);
956 assert!(!update_next_msgs);
957 assert!(node.node.get_and_clear_pending_msg_events().is_empty());
959 if !skip_last && idx == expected_route.len() - 1 {
960 assert_eq!(expected_next_node, origin_node.node.get_our_node_id());
967 last_update_fulfill_dance!(origin_node, expected_route.first().unwrap());
968 expect_payment_sent!(origin_node, our_payment_preimage);
973 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) {
974 claim_payment_along_route_with_secret(origin_node, &[expected_route], skip_last, our_payment_preimage, None, expected_amount);
977 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) {
978 claim_payment_along_route(origin_node, expected_route, false, our_payment_preimage, expected_amount);
981 pub const TEST_FINAL_CLTV: u32 = 32;
983 pub fn route_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) -> (PaymentPreimage, PaymentHash) {
984 let net_graph_msg_handler = &origin_node.net_graph_msg_handler;
985 let logger = test_utils::TestLogger::new();
986 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();
987 assert_eq!(route.paths.len(), 1);
988 assert_eq!(route.paths[0].len(), expected_route.len());
989 for (node, hop) in expected_route.iter().zip(route.paths[0].iter()) {
990 assert_eq!(hop.pubkey, node.node.get_our_node_id());
993 send_along_route(origin_node, route, expected_route, recv_value)
996 pub fn route_over_limit<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) {
997 let logger = test_utils::TestLogger::new();
998 let net_graph_msg_handler = &origin_node.net_graph_msg_handler;
999 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();
1000 assert_eq!(route.paths.len(), 1);
1001 assert_eq!(route.paths[0].len(), expected_route.len());
1002 for (node, hop) in expected_route.iter().zip(route.paths[0].iter()) {
1003 assert_eq!(hop.pubkey, node.node.get_our_node_id());
1006 let (_, our_payment_hash) = get_payment_preimage_hash!(origin_node);
1007 unwrap_send_err!(origin_node.node.send_payment(&route, our_payment_hash, &None), true, APIError::ChannelUnavailable { ref err },
1008 assert!(err.contains("Cannot send value that would put us over the max HTLC value in flight our peer will accept")));
1011 pub fn send_payment<'a, 'b, 'c>(origin: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64, expected_value: u64) {
1012 let our_payment_preimage = route_payment(&origin, expected_route, recv_value).0;
1013 claim_payment(&origin, expected_route, our_payment_preimage, expected_value);
1016 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) {
1017 assert!(expected_route.last().unwrap().node.fail_htlc_backwards(&our_payment_hash, &None));
1018 expect_pending_htlcs_forwardable!(expected_route.last().unwrap());
1019 check_added_monitors!(expected_route.last().unwrap(), 1);
1021 let mut next_msgs: Option<(msgs::UpdateFailHTLC, msgs::CommitmentSigned)> = None;
1022 macro_rules! update_fail_dance {
1023 ($node: expr, $prev_node: expr, $last_node: expr) => {
1025 $node.node.handle_update_fail_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
1026 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, !$last_node);
1027 if skip_last && $last_node {
1028 expect_pending_htlcs_forwardable!($node);
1034 let mut expected_next_node = expected_route.last().unwrap().node.get_our_node_id();
1035 let mut prev_node = expected_route.last().unwrap();
1036 for (idx, node) in expected_route.iter().rev().enumerate() {
1037 assert_eq!(expected_next_node, node.node.get_our_node_id());
1038 if next_msgs.is_some() {
1039 // We may be the "last node" for the purpose of the commitment dance if we're
1040 // skipping the last node (implying it is disconnected) and we're the
1041 // second-to-last node!
1042 update_fail_dance!(node, prev_node, skip_last && idx == expected_route.len() - 1);
1045 let events = node.node.get_and_clear_pending_msg_events();
1046 if !skip_last || idx != expected_route.len() - 1 {
1047 assert_eq!(events.len(), 1);
1049 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 } } => {
1050 assert!(update_add_htlcs.is_empty());
1051 assert!(update_fulfill_htlcs.is_empty());
1052 assert_eq!(update_fail_htlcs.len(), 1);
1053 assert!(update_fail_malformed_htlcs.is_empty());
1054 assert!(update_fee.is_none());
1055 expected_next_node = node_id.clone();
1056 next_msgs = Some((update_fail_htlcs[0].clone(), commitment_signed.clone()));
1058 _ => panic!("Unexpected event"),
1061 assert!(events.is_empty());
1063 if !skip_last && idx == expected_route.len() - 1 {
1064 assert_eq!(expected_next_node, origin_node.node.get_our_node_id());
1071 update_fail_dance!(origin_node, expected_route.first().unwrap(), true);
1073 let events = origin_node.node.get_and_clear_pending_events();
1074 assert_eq!(events.len(), 1);
1076 Event::PaymentFailed { payment_hash, rejected_by_dest, .. } => {
1077 assert_eq!(payment_hash, our_payment_hash);
1078 assert!(rejected_by_dest);
1080 _ => panic!("Unexpected event"),
1085 pub fn fail_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], our_payment_hash: PaymentHash) {
1086 fail_payment_along_route(origin_node, expected_route, false, our_payment_hash);
1089 pub fn create_chanmon_cfgs(node_count: usize) -> Vec<TestChanMonCfg> {
1090 let mut chan_mon_cfgs = Vec::new();
1091 for i in 0..node_count {
1092 let tx_broadcaster = test_utils::TestBroadcaster{txn_broadcasted: Mutex::new(Vec::new())};
1093 let fee_estimator = test_utils::TestFeeEstimator { sat_per_kw: 253 };
1094 let chain_source = test_utils::TestChainSource::new(Network::Testnet);
1095 let logger = test_utils::TestLogger::with_id(format!("node {}", i));
1096 chan_mon_cfgs.push(TestChanMonCfg{ tx_broadcaster, fee_estimator, chain_source, logger });
1102 pub fn create_node_cfgs<'a>(node_count: usize, chanmon_cfgs: &'a Vec<TestChanMonCfg>) -> Vec<NodeCfg<'a>> {
1103 let mut nodes = Vec::new();
1105 for i in 0..node_count {
1106 let seed = [i as u8; 32];
1107 let keys_manager = test_utils::TestKeysInterface::new(&seed, Network::Testnet);
1108 let chain_monitor = test_utils::TestChainMonitor::new(Some(&chanmon_cfgs[i].chain_source), &chanmon_cfgs[i].tx_broadcaster, &chanmon_cfgs[i].logger, &chanmon_cfgs[i].fee_estimator);
1109 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, chain_monitor, keys_manager, node_seed: seed });
1115 pub fn create_node_chanmgrs<'a, 'b>(node_count: usize, cfgs: &'a Vec<NodeCfg<'b>>, node_config: &[Option<UserConfig>]) -> Vec<ChannelManager<EnforcingChannelKeys, &'a TestChainMonitor<'b>, &'b test_utils::TestBroadcaster, &'a test_utils::TestKeysInterface, &'b test_utils::TestFeeEstimator, &'b test_utils::TestLogger>> {
1116 let mut chanmgrs = Vec::new();
1117 for i in 0..node_count {
1118 let mut default_config = UserConfig::default();
1119 default_config.channel_options.announced_channel = true;
1120 default_config.peer_channel_config_limits.force_announced_channel_preference = false;
1121 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
1122 let node = ChannelManager::new(Network::Testnet, cfgs[i].fee_estimator, &cfgs[i].chain_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);
1123 chanmgrs.push(node);
1129 pub fn create_network<'a, 'b: 'a, 'c: 'b>(node_count: usize, cfgs: &'b Vec<NodeCfg<'c>>, chan_mgrs: &'a Vec<ChannelManager<EnforcingChannelKeys, &'b TestChainMonitor<'c>, &'c test_utils::TestBroadcaster, &'b test_utils::TestKeysInterface, &'c test_utils::TestFeeEstimator, &'c test_utils::TestLogger>>) -> Vec<Node<'a, 'b, 'c>> {
1130 let mut nodes = Vec::new();
1131 let chan_count = Rc::new(RefCell::new(0));
1132 let payment_count = Rc::new(RefCell::new(0));
1134 for i in 0..node_count {
1135 let net_graph_msg_handler = NetGraphMsgHandler::new(None, cfgs[i].logger);
1136 nodes.push(Node{ chain_source: cfgs[i].chain_source,
1137 tx_broadcaster: cfgs[i].tx_broadcaster, chain_monitor: &cfgs[i].chain_monitor,
1138 keys_manager: &cfgs[i].keys_manager, node: &chan_mgrs[i], net_graph_msg_handler,
1139 node_seed: cfgs[i].node_seed, network_chan_count: chan_count.clone(),
1140 network_payment_count: payment_count.clone(), logger: cfgs[i].logger,
1147 pub const ACCEPTED_HTLC_SCRIPT_WEIGHT: usize = 138; //Here we have a diff due to HTLC CLTV expiry being < 2^15 in test
1148 pub const OFFERED_HTLC_SCRIPT_WEIGHT: usize = 133;
1150 #[derive(PartialEq)]
1151 pub enum HTLCType { NONE, TIMEOUT, SUCCESS }
1152 /// Tests that the given node has broadcast transactions for the given Channel
1154 /// First checks that the latest holder commitment tx has been broadcast, unless an explicit
1155 /// commitment_tx is provided, which may be used to test that a remote commitment tx was
1156 /// broadcast and the revoked outputs were claimed.
1158 /// Next tests that there is (or is not) a transaction that spends the commitment transaction
1159 /// that appears to be the type of HTLC transaction specified in has_htlc_tx.
1161 /// All broadcast transactions must be accounted for in one of the above three types of we'll
1163 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> {
1164 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
1165 assert!(node_txn.len() >= if commitment_tx.is_some() { 0 } else { 1 } + if has_htlc_tx == HTLCType::NONE { 0 } else { 1 });
1167 let mut res = Vec::with_capacity(2);
1168 node_txn.retain(|tx| {
1169 if tx.input.len() == 1 && tx.input[0].previous_output.txid == chan.3.txid() {
1170 check_spends!(tx, chan.3);
1171 if commitment_tx.is_none() {
1172 res.push(tx.clone());
1177 if let Some(explicit_tx) = commitment_tx {
1178 res.push(explicit_tx.clone());
1181 assert_eq!(res.len(), 1);
1183 if has_htlc_tx != HTLCType::NONE {
1184 node_txn.retain(|tx| {
1185 if tx.input.len() == 1 && tx.input[0].previous_output.txid == res[0].txid() {
1186 check_spends!(tx, res[0]);
1187 if has_htlc_tx == HTLCType::TIMEOUT {
1188 assert!(tx.lock_time != 0);
1190 assert!(tx.lock_time == 0);
1192 res.push(tx.clone());
1196 assert!(res.len() == 2 || res.len() == 3);
1198 assert_eq!(res[1], res[2]);
1202 assert!(node_txn.is_empty());
1206 /// Tests that the given node has broadcast a claim transaction against the provided revoked
1207 /// HTLC transaction.
1208 pub fn test_revoked_htlc_claim_txn_broadcast<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, revoked_tx: Transaction, commitment_revoked_tx: Transaction) {
1209 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
1210 // We may issue multiple claiming transaction on revoked outputs due to block rescan
1211 // for revoked htlc outputs
1212 if node_txn.len() != 1 && node_txn.len() != 2 && node_txn.len() != 3 { assert!(false); }
1213 node_txn.retain(|tx| {
1214 if tx.input.len() == 1 && tx.input[0].previous_output.txid == revoked_tx.txid() {
1215 check_spends!(tx, revoked_tx);
1219 node_txn.retain(|tx| {
1220 check_spends!(tx, commitment_revoked_tx);
1223 assert!(node_txn.is_empty());
1226 pub fn check_preimage_claim<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, prev_txn: &Vec<Transaction>) -> Vec<Transaction> {
1227 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
1229 assert!(node_txn.len() >= 1);
1230 assert_eq!(node_txn[0].input.len(), 1);
1231 let mut found_prev = false;
1233 for tx in prev_txn {
1234 if node_txn[0].input[0].previous_output.txid == tx.txid() {
1235 check_spends!(node_txn[0], tx);
1236 assert!(node_txn[0].input[0].witness[2].len() > 106); // must spend an htlc output
1237 assert_eq!(tx.input.len(), 1); // must spend a commitment tx
1243 assert!(found_prev);
1245 let mut res = Vec::new();
1246 mem::swap(&mut *node_txn, &mut res);
1250 pub fn get_announce_close_broadcast_events<'a, 'b, 'c>(nodes: &Vec<Node<'a, 'b, 'c>>, a: usize, b: usize) {
1251 let events_1 = nodes[a].node.get_and_clear_pending_msg_events();
1252 assert_eq!(events_1.len(), 1);
1253 let as_update = match events_1[0] {
1254 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
1257 _ => panic!("Unexpected event"),
1260 let events_2 = nodes[b].node.get_and_clear_pending_msg_events();
1261 assert_eq!(events_2.len(), 1);
1262 let bs_update = match events_2[0] {
1263 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
1266 _ => panic!("Unexpected event"),
1270 node.net_graph_msg_handler.handle_channel_update(&as_update).unwrap();
1271 node.net_graph_msg_handler.handle_channel_update(&bs_update).unwrap();
1275 macro_rules! get_channel_value_stat {
1276 ($node: expr, $channel_id: expr) => {{
1277 let chan_lock = $node.node.channel_state.lock().unwrap();
1278 let chan = chan_lock.by_id.get(&$channel_id).unwrap();
1279 chan.get_value_stat()
1283 macro_rules! get_chan_reestablish_msgs {
1284 ($src_node: expr, $dst_node: expr) => {
1286 let mut res = Vec::with_capacity(1);
1287 for msg in $src_node.node.get_and_clear_pending_msg_events() {
1288 if let MessageSendEvent::SendChannelReestablish { ref node_id, ref msg } = msg {
1289 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1290 res.push(msg.clone());
1292 panic!("Unexpected event")
1300 macro_rules! handle_chan_reestablish_msgs {
1301 ($src_node: expr, $dst_node: expr) => {
1303 let msg_events = $src_node.node.get_and_clear_pending_msg_events();
1305 let funding_locked = if let Some(&MessageSendEvent::SendFundingLocked { ref node_id, ref msg }) = msg_events.get(0) {
1307 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1313 let mut revoke_and_ack = None;
1314 let mut commitment_update = None;
1315 let order = if let Some(ev) = msg_events.get(idx) {
1318 &MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
1319 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1320 revoke_and_ack = Some(msg.clone());
1321 RAACommitmentOrder::RevokeAndACKFirst
1323 &MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
1324 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1325 commitment_update = Some(updates.clone());
1326 RAACommitmentOrder::CommitmentFirst
1328 _ => panic!("Unexpected event"),
1331 RAACommitmentOrder::CommitmentFirst
1334 if let Some(ev) = msg_events.get(idx) {
1336 &MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
1337 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1338 assert!(revoke_and_ack.is_none());
1339 revoke_and_ack = Some(msg.clone());
1341 &MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
1342 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1343 assert!(commitment_update.is_none());
1344 commitment_update = Some(updates.clone());
1346 _ => panic!("Unexpected event"),
1350 (funding_locked, revoke_and_ack, commitment_update, order)
1355 /// pending_htlc_adds includes both the holding cell and in-flight update_add_htlcs, whereas
1356 /// for claims/fails they are separated out.
1357 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)) {
1358 node_a.node.peer_connected(&node_b.node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1359 let reestablish_1 = get_chan_reestablish_msgs!(node_a, node_b);
1360 node_b.node.peer_connected(&node_a.node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1361 let reestablish_2 = get_chan_reestablish_msgs!(node_b, node_a);
1363 if send_funding_locked.0 {
1364 // If a expects a funding_locked, it better not think it has received a revoke_and_ack
1366 for reestablish in reestablish_1.iter() {
1367 assert_eq!(reestablish.next_remote_commitment_number, 0);
1370 if send_funding_locked.1 {
1371 // If b expects a funding_locked, it better not think it has received a revoke_and_ack
1373 for reestablish in reestablish_2.iter() {
1374 assert_eq!(reestablish.next_remote_commitment_number, 0);
1377 if send_funding_locked.0 || send_funding_locked.1 {
1378 // If we expect any funding_locked's, both sides better have set
1379 // next_holder_commitment_number to 1
1380 for reestablish in reestablish_1.iter() {
1381 assert_eq!(reestablish.next_local_commitment_number, 1);
1383 for reestablish in reestablish_2.iter() {
1384 assert_eq!(reestablish.next_local_commitment_number, 1);
1388 let mut resp_1 = Vec::new();
1389 for msg in reestablish_1 {
1390 node_b.node.handle_channel_reestablish(&node_a.node.get_our_node_id(), &msg);
1391 resp_1.push(handle_chan_reestablish_msgs!(node_b, node_a));
1393 if pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 {
1394 check_added_monitors!(node_b, 1);
1396 check_added_monitors!(node_b, 0);
1399 let mut resp_2 = Vec::new();
1400 for msg in reestablish_2 {
1401 node_a.node.handle_channel_reestablish(&node_b.node.get_our_node_id(), &msg);
1402 resp_2.push(handle_chan_reestablish_msgs!(node_a, node_b));
1404 if pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 {
1405 check_added_monitors!(node_a, 1);
1407 check_added_monitors!(node_a, 0);
1410 // We don't yet support both needing updates, as that would require a different commitment dance:
1411 assert!((pending_htlc_adds.0 == 0 && pending_htlc_claims.0 == 0 && pending_cell_htlc_claims.0 == 0 && pending_cell_htlc_fails.0 == 0) ||
1412 (pending_htlc_adds.1 == 0 && pending_htlc_claims.1 == 0 && pending_cell_htlc_claims.1 == 0 && pending_cell_htlc_fails.1 == 0));
1414 for chan_msgs in resp_1.drain(..) {
1415 if send_funding_locked.0 {
1416 node_a.node.handle_funding_locked(&node_b.node.get_our_node_id(), &chan_msgs.0.unwrap());
1417 let announcement_event = node_a.node.get_and_clear_pending_msg_events();
1418 if !announcement_event.is_empty() {
1419 assert_eq!(announcement_event.len(), 1);
1420 if let MessageSendEvent::SendAnnouncementSignatures { .. } = announcement_event[0] {
1421 //TODO: Test announcement_sigs re-sending
1422 } else { panic!("Unexpected event!"); }
1425 assert!(chan_msgs.0.is_none());
1428 assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst);
1429 node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &chan_msgs.1.unwrap());
1430 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
1431 check_added_monitors!(node_a, 1);
1433 assert!(chan_msgs.1.is_none());
1435 if pending_htlc_adds.0 != 0 || pending_htlc_claims.0 != 0 || pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 {
1436 let commitment_update = chan_msgs.2.unwrap();
1437 if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed
1438 assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.0 as usize);
1440 assert!(commitment_update.update_add_htlcs.is_empty());
1442 assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.0 + pending_cell_htlc_claims.0);
1443 assert_eq!(commitment_update.update_fail_htlcs.len(), pending_cell_htlc_fails.0);
1444 assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
1445 for update_add in commitment_update.update_add_htlcs {
1446 node_a.node.handle_update_add_htlc(&node_b.node.get_our_node_id(), &update_add);
1448 for update_fulfill in commitment_update.update_fulfill_htlcs {
1449 node_a.node.handle_update_fulfill_htlc(&node_b.node.get_our_node_id(), &update_fulfill);
1451 for update_fail in commitment_update.update_fail_htlcs {
1452 node_a.node.handle_update_fail_htlc(&node_b.node.get_our_node_id(), &update_fail);
1455 if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed
1456 commitment_signed_dance!(node_a, node_b, commitment_update.commitment_signed, false);
1458 node_a.node.handle_commitment_signed(&node_b.node.get_our_node_id(), &commitment_update.commitment_signed);
1459 check_added_monitors!(node_a, 1);
1460 let as_revoke_and_ack = get_event_msg!(node_a, MessageSendEvent::SendRevokeAndACK, node_b.node.get_our_node_id());
1461 // No commitment_signed so get_event_msg's assert(len == 1) passes
1462 node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &as_revoke_and_ack);
1463 assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
1464 check_added_monitors!(node_b, 1);
1467 assert!(chan_msgs.2.is_none());
1471 for chan_msgs in resp_2.drain(..) {
1472 if send_funding_locked.1 {
1473 node_b.node.handle_funding_locked(&node_a.node.get_our_node_id(), &chan_msgs.0.unwrap());
1474 let announcement_event = node_b.node.get_and_clear_pending_msg_events();
1475 if !announcement_event.is_empty() {
1476 assert_eq!(announcement_event.len(), 1);
1477 if let MessageSendEvent::SendAnnouncementSignatures { .. } = announcement_event[0] {
1478 //TODO: Test announcement_sigs re-sending
1479 } else { panic!("Unexpected event!"); }
1482 assert!(chan_msgs.0.is_none());
1485 assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst);
1486 node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &chan_msgs.1.unwrap());
1487 assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
1488 check_added_monitors!(node_b, 1);
1490 assert!(chan_msgs.1.is_none());
1492 if pending_htlc_adds.1 != 0 || pending_htlc_claims.1 != 0 || pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 {
1493 let commitment_update = chan_msgs.2.unwrap();
1494 if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed
1495 assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.1 as usize);
1497 assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.0 + pending_cell_htlc_claims.0);
1498 assert_eq!(commitment_update.update_fail_htlcs.len(), pending_cell_htlc_fails.0);
1499 assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
1500 for update_add in commitment_update.update_add_htlcs {
1501 node_b.node.handle_update_add_htlc(&node_a.node.get_our_node_id(), &update_add);
1503 for update_fulfill in commitment_update.update_fulfill_htlcs {
1504 node_b.node.handle_update_fulfill_htlc(&node_a.node.get_our_node_id(), &update_fulfill);
1506 for update_fail in commitment_update.update_fail_htlcs {
1507 node_b.node.handle_update_fail_htlc(&node_a.node.get_our_node_id(), &update_fail);
1510 if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed
1511 commitment_signed_dance!(node_b, node_a, commitment_update.commitment_signed, false);
1513 node_b.node.handle_commitment_signed(&node_a.node.get_our_node_id(), &commitment_update.commitment_signed);
1514 check_added_monitors!(node_b, 1);
1515 let bs_revoke_and_ack = get_event_msg!(node_b, MessageSendEvent::SendRevokeAndACK, node_a.node.get_our_node_id());
1516 // No commitment_signed so get_event_msg's assert(len == 1) passes
1517 node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &bs_revoke_and_ack);
1518 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
1519 check_added_monitors!(node_a, 1);
1522 assert!(chan_msgs.2.is_none());