1 //! A bunch of useful utilities for building networks of nodes and exchanging messages between
2 //! nodes for functional tests.
4 use chain::chaininterface;
5 use chain::transaction::OutPoint;
6 use ln::channelmanager::{ChannelManager, ChannelManagerReadArgs, RAACommitmentOrder, PaymentPreimage, PaymentHash, PaymentSecret, PaymentSendFailure};
7 use ln::channelmonitor::{ChannelMonitor, ManyChannelMonitor};
8 use routing::router::{Route, get_route};
9 use routing::network_graph::{NetGraphMsgHandler, NetworkGraph};
10 use ln::features::InitFeatures;
12 use ln::msgs::{ChannelMessageHandler,RoutingMessageHandler};
13 use util::enforcing_trait_impls::EnforcingChannelKeys;
15 use util::test_utils::TestChannelMonitor;
16 use util::events::{Event, EventsProvider, MessageSendEvent, MessageSendEventsProvider};
17 use util::errors::APIError;
18 use util::config::UserConfig;
19 use util::ser::{ReadableArgs, Writeable, Readable};
21 use bitcoin::util::hash::BitcoinHash;
22 use bitcoin::blockdata::block::BlockHeader;
23 use bitcoin::blockdata::transaction::{Transaction, TxOut};
24 use bitcoin::network::constants::Network;
26 use bitcoin::hashes::sha256::Hash as Sha256;
27 use bitcoin::hashes::Hash;
28 use bitcoin::hash_types::BlockHash;
30 use bitcoin::secp256k1::key::PublicKey;
32 use rand::{thread_rng,Rng};
34 use std::cell::RefCell;
36 use std::sync::{Mutex, RwLock};
38 use std::collections::HashMap;
40 pub const CHAN_CONFIRM_DEPTH: u32 = 100;
41 pub fn confirm_transaction<'a, 'b: 'a>(notifier: &'a chaininterface::BlockNotifierRef<'b, &chaininterface::ChainWatchInterfaceUtil>, chain: &chaininterface::ChainWatchInterfaceUtil, tx: &Transaction, chan_id: u32) {
42 assert!(chain.does_match_tx(tx));
43 let mut header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
44 notifier.block_connected_checked(&header, 1, &[tx; 1], &[chan_id; 1]);
45 for i in 2..CHAN_CONFIRM_DEPTH {
46 header = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
47 notifier.block_connected_checked(&header, i, &vec![], &[0; 0]);
51 pub fn connect_blocks<'a, 'b>(notifier: &'a chaininterface::BlockNotifierRef<'b, &chaininterface::ChainWatchInterfaceUtil>, depth: u32, height: u32, parent: bool, prev_blockhash: BlockHash) -> BlockHash {
52 let mut header = BlockHeader { version: 0x2000000, prev_blockhash: if parent { prev_blockhash } else { Default::default() }, merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
53 notifier.block_connected_checked(&header, height + 1, &Vec::new(), &Vec::new());
54 for i in 2..depth + 1 {
55 header = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
56 notifier.block_connected_checked(&header, height + i, &Vec::new(), &Vec::new());
61 pub struct TestChanMonCfg {
62 pub tx_broadcaster: test_utils::TestBroadcaster,
63 pub fee_estimator: test_utils::TestFeeEstimator,
64 pub chain_monitor: chaininterface::ChainWatchInterfaceUtil,
65 pub logger: test_utils::TestLogger,
68 pub struct NodeCfg<'a> {
69 pub chain_monitor: &'a chaininterface::ChainWatchInterfaceUtil,
70 pub tx_broadcaster: &'a test_utils::TestBroadcaster,
71 pub fee_estimator: &'a test_utils::TestFeeEstimator,
72 pub chan_monitor: test_utils::TestChannelMonitor<'a>,
73 pub keys_manager: test_utils::TestKeysInterface,
74 pub logger: &'a test_utils::TestLogger,
75 pub node_seed: [u8; 32],
78 pub struct Node<'a, 'b: 'a, 'c: 'b> {
79 pub block_notifier: chaininterface::BlockNotifierRef<'a, &'c chaininterface::ChainWatchInterfaceUtil>,
80 pub chain_monitor: &'c chaininterface::ChainWatchInterfaceUtil,
81 pub tx_broadcaster: &'c test_utils::TestBroadcaster,
82 pub chan_monitor: &'b test_utils::TestChannelMonitor<'c>,
83 pub keys_manager: &'b test_utils::TestKeysInterface,
84 pub node: &'a ChannelManager<EnforcingChannelKeys, &'b TestChannelMonitor<'c>, &'c test_utils::TestBroadcaster, &'b test_utils::TestKeysInterface, &'c test_utils::TestFeeEstimator, &'c test_utils::TestLogger>,
85 pub net_graph_msg_handler: NetGraphMsgHandler<&'c chaininterface::ChainWatchInterfaceUtil, &'c test_utils::TestLogger>,
86 pub node_seed: [u8; 32],
87 pub network_payment_count: Rc<RefCell<u8>>,
88 pub network_chan_count: Rc<RefCell<u32>>,
89 pub logger: &'c test_utils::TestLogger,
92 impl<'a, 'b, 'c> Drop for Node<'a, 'b, 'c> {
94 if !::std::thread::panicking() {
95 // Check that we processed all pending events
96 assert!(self.node.get_and_clear_pending_msg_events().is_empty());
97 assert!(self.node.get_and_clear_pending_events().is_empty());
98 assert!(self.chan_monitor.added_monitors.lock().unwrap().is_empty());
100 // Check that if we serialize the Router, we can deserialize it again.
102 let mut w = test_utils::TestVecWriter(Vec::new());
103 let network_graph_ser = self.net_graph_msg_handler.network_graph.read().unwrap();
104 network_graph_ser.write(&mut w).unwrap();
105 let network_graph_deser = <NetworkGraph>::read(&mut ::std::io::Cursor::new(&w.0)).unwrap();
106 assert!(network_graph_deser == *self.net_graph_msg_handler.network_graph.read().unwrap());
107 let net_graph_msg_handler = NetGraphMsgHandler::from_net_graph(
108 self.chain_monitor, self.logger, RwLock::new(network_graph_deser)
110 let mut chan_progress = 0;
112 let orig_announcements = self.net_graph_msg_handler.get_next_channel_announcements(chan_progress, 255);
113 let deserialized_announcements = net_graph_msg_handler.get_next_channel_announcements(chan_progress, 255);
114 assert!(orig_announcements == deserialized_announcements);
115 chan_progress = match orig_announcements.last() {
116 Some(announcement) => announcement.0.contents.short_channel_id + 1,
120 let mut node_progress = None;
122 let orig_announcements = self.net_graph_msg_handler.get_next_node_announcements(node_progress.as_ref(), 255);
123 let deserialized_announcements = net_graph_msg_handler.get_next_node_announcements(node_progress.as_ref(), 255);
124 assert!(orig_announcements == deserialized_announcements);
125 node_progress = match orig_announcements.last() {
126 Some(announcement) => Some(announcement.contents.node_id),
132 // Check that if we serialize and then deserialize all our channel monitors we get the
133 // same set of outputs to watch for on chain as we have now. Note that if we write
134 // tests that fully close channels and remove the monitors at some point this may break.
135 let feeest = test_utils::TestFeeEstimator { sat_per_kw: 253 };
136 let mut deserialized_monitors = Vec::new();
138 let old_monitors = self.chan_monitor.simple_monitor.monitors.lock().unwrap();
139 for (_, old_monitor) in old_monitors.iter() {
140 let mut w = test_utils::TestVecWriter(Vec::new());
141 old_monitor.write_for_disk(&mut w).unwrap();
142 let (_, deserialized_monitor) = <(BlockHash, ChannelMonitor<EnforcingChannelKeys>)>::read(
143 &mut ::std::io::Cursor::new(&w.0)).unwrap();
144 deserialized_monitors.push(deserialized_monitor);
148 // Before using all the new monitors to check the watch outpoints, use the full set of
149 // them to ensure we can write and reload our ChannelManager.
151 let mut channel_monitors = HashMap::new();
152 for monitor in deserialized_monitors.iter_mut() {
153 channel_monitors.insert(monitor.get_funding_txo(), monitor);
156 let mut w = test_utils::TestVecWriter(Vec::new());
157 self.node.write(&mut w).unwrap();
158 <(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 {
159 default_config: UserConfig::default(),
160 keys_manager: self.keys_manager,
161 fee_estimator: &test_utils::TestFeeEstimator { sat_per_kw: 253 },
162 monitor: self.chan_monitor,
163 tx_broadcaster: self.tx_broadcaster.clone(),
164 logger: &test_utils::TestLogger::new(),
165 channel_monitors: &mut channel_monitors,
169 let chain_watch = chaininterface::ChainWatchInterfaceUtil::new(Network::Testnet);
170 let channel_monitor = test_utils::TestChannelMonitor::new(&chain_watch, self.tx_broadcaster.clone(), &self.logger, &feeest);
171 for deserialized_monitor in deserialized_monitors.drain(..) {
172 if let Err(_) = channel_monitor.add_monitor(deserialized_monitor.get_funding_txo(), deserialized_monitor) {
176 if chain_watch != *self.chain_monitor {
183 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) {
184 create_chan_between_nodes_with_value(node_a, node_b, 100000, 10001, a_flags, b_flags)
187 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) {
188 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);
189 let (announcement, as_update, bs_update) = create_chan_between_nodes_with_value_b(node_a, node_b, &funding_locked);
190 (announcement, as_update, bs_update, channel_id, tx)
193 macro_rules! get_revoke_commit_msgs {
194 ($node: expr, $node_id: expr) => {
196 let events = $node.node.get_and_clear_pending_msg_events();
197 assert_eq!(events.len(), 2);
199 MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
200 assert_eq!(*node_id, $node_id);
203 _ => panic!("Unexpected event"),
205 MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
206 assert_eq!(*node_id, $node_id);
207 assert!(updates.update_add_htlcs.is_empty());
208 assert!(updates.update_fulfill_htlcs.is_empty());
209 assert!(updates.update_fail_htlcs.is_empty());
210 assert!(updates.update_fail_malformed_htlcs.is_empty());
211 assert!(updates.update_fee.is_none());
212 updates.commitment_signed.clone()
214 _ => panic!("Unexpected event"),
220 macro_rules! get_event_msg {
221 ($node: expr, $event_type: path, $node_id: expr) => {
223 let events = $node.node.get_and_clear_pending_msg_events();
224 assert_eq!(events.len(), 1);
226 $event_type { ref node_id, ref msg } => {
227 assert_eq!(*node_id, $node_id);
230 _ => panic!("Unexpected event"),
236 macro_rules! get_htlc_update_msgs {
237 ($node: expr, $node_id: expr) => {
239 let events = $node.node.get_and_clear_pending_msg_events();
240 assert_eq!(events.len(), 1);
242 MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
243 assert_eq!(*node_id, $node_id);
246 _ => panic!("Unexpected event"),
252 macro_rules! get_feerate {
253 ($node: expr, $channel_id: expr) => {
255 let chan_lock = $node.node.channel_state.lock().unwrap();
256 let chan = chan_lock.by_id.get(&$channel_id).unwrap();
262 macro_rules! get_local_commitment_txn {
263 ($node: expr, $channel_id: expr) => {
265 let mut monitors = $node.chan_monitor.simple_monitor.monitors.lock().unwrap();
266 let mut commitment_txn = None;
267 for (funding_txo, monitor) in monitors.iter_mut() {
268 if funding_txo.to_channel_id() == $channel_id {
269 commitment_txn = Some(monitor.unsafe_get_latest_local_commitment_txn(&$node.logger));
273 commitment_txn.unwrap()
278 macro_rules! unwrap_send_err {
279 ($res: expr, $all_failed: expr, $type: pat, $check: expr) => {
281 &Err(PaymentSendFailure::AllFailedRetrySafe(ref fails)) if $all_failed => {
282 assert_eq!(fails.len(), 1);
288 &Err(PaymentSendFailure::PartialFailure(ref fails)) if !$all_failed => {
289 assert_eq!(fails.len(), 1);
291 Err($type) => { $check },
300 macro_rules! check_added_monitors {
301 ($node: expr, $count: expr) => {
303 let mut added_monitors = $node.chan_monitor.added_monitors.lock().unwrap();
304 assert_eq!(added_monitors.len(), $count);
305 added_monitors.clear();
310 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) {
311 let chan_id = *node.network_chan_count.borrow();
313 let events = node.node.get_and_clear_pending_events();
314 assert_eq!(events.len(), 1);
316 Event::FundingGenerationReady { ref temporary_channel_id, ref channel_value_satoshis, ref output_script, user_channel_id } => {
317 assert_eq!(*channel_value_satoshis, expected_chan_value);
318 assert_eq!(user_channel_id, expected_user_chan_id);
320 let tx = Transaction { version: chan_id as u32, lock_time: 0, input: Vec::new(), output: vec![TxOut {
321 value: *channel_value_satoshis, script_pubkey: output_script.clone(),
323 let funding_outpoint = OutPoint::new(tx.txid(), 0);
324 (*temporary_channel_id, tx, funding_outpoint)
326 _ => panic!("Unexpected event"),
330 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 {
331 node_a.node.create_channel(node_b.node.get_our_node_id(), channel_value, push_msat, 42, None).unwrap();
332 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()));
333 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()));
335 let (temporary_channel_id, tx, funding_output) = create_funding_transaction(node_a, channel_value, 42);
337 node_a.node.funding_transaction_generated(&temporary_channel_id, funding_output);
338 check_added_monitors!(node_a, 0);
340 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()));
342 let mut added_monitors = node_b.chan_monitor.added_monitors.lock().unwrap();
343 assert_eq!(added_monitors.len(), 1);
344 assert_eq!(added_monitors[0].0, funding_output);
345 added_monitors.clear();
348 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()));
350 let mut added_monitors = node_a.chan_monitor.added_monitors.lock().unwrap();
351 assert_eq!(added_monitors.len(), 1);
352 assert_eq!(added_monitors[0].0, funding_output);
353 added_monitors.clear();
356 let events_4 = node_a.node.get_and_clear_pending_events();
357 assert_eq!(events_4.len(), 1);
359 Event::FundingBroadcastSafe { ref funding_txo, user_channel_id } => {
360 assert_eq!(user_channel_id, 42);
361 assert_eq!(*funding_txo, funding_output);
363 _ => panic!("Unexpected event"),
369 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) {
370 confirm_transaction(&node_conf.block_notifier, &node_conf.chain_monitor, &tx, tx.version);
371 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()));
374 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]) {
376 let events_6 = node_conf.node.get_and_clear_pending_msg_events();
377 assert_eq!(events_6.len(), 2);
378 ((match events_6[0] {
379 MessageSendEvent::SendFundingLocked { ref node_id, ref msg } => {
380 channel_id = msg.channel_id.clone();
381 assert_eq!(*node_id, node_recv.node.get_our_node_id());
384 _ => panic!("Unexpected event"),
385 }, match events_6[1] {
386 MessageSendEvent::SendAnnouncementSignatures { ref node_id, ref msg } => {
387 assert_eq!(*node_id, node_recv.node.get_our_node_id());
390 _ => panic!("Unexpected event"),
394 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]) {
395 create_chan_between_nodes_with_value_confirm_first(node_a, node_b, tx);
396 confirm_transaction(&node_a.block_notifier, &node_a.chain_monitor, &tx, tx.version);
397 create_chan_between_nodes_with_value_confirm_second(node_b, node_a)
400 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) {
401 let tx = create_chan_between_nodes_with_value_init(node_a, node_b, channel_value, push_msat, a_flags, b_flags);
402 let (msgs, chan_id) = create_chan_between_nodes_with_value_confirm(node_a, node_b, &tx);
406 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) {
407 node_b.node.handle_funding_locked(&node_a.node.get_our_node_id(), &as_funding_msgs.0);
408 let bs_announcement_sigs = get_event_msg!(node_b, MessageSendEvent::SendAnnouncementSignatures, node_a.node.get_our_node_id());
409 node_b.node.handle_announcement_signatures(&node_a.node.get_our_node_id(), &as_funding_msgs.1);
411 let events_7 = node_b.node.get_and_clear_pending_msg_events();
412 assert_eq!(events_7.len(), 1);
413 let (announcement, bs_update) = match events_7[0] {
414 MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
417 _ => panic!("Unexpected event"),
420 node_a.node.handle_announcement_signatures(&node_b.node.get_our_node_id(), &bs_announcement_sigs);
421 let events_8 = node_a.node.get_and_clear_pending_msg_events();
422 assert_eq!(events_8.len(), 1);
423 let as_update = match events_8[0] {
424 MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
425 assert!(*announcement == *msg);
426 assert_eq!(update_msg.contents.short_channel_id, announcement.contents.short_channel_id);
427 assert_eq!(update_msg.contents.short_channel_id, bs_update.contents.short_channel_id);
430 _ => panic!("Unexpected event"),
433 *node_a.network_chan_count.borrow_mut() += 1;
435 ((*announcement).clone(), (*as_update).clone(), (*bs_update).clone())
438 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) {
439 create_announced_chan_between_nodes_with_value(nodes, a, b, 100000, 10001, a_flags, b_flags)
442 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) {
443 let chan_announcement = create_chan_between_nodes_with_value(&nodes[a], &nodes[b], channel_value, push_msat, a_flags, b_flags);
445 nodes[a].node.broadcast_node_announcement([0, 0, 0], [0; 32], Vec::new());
446 let a_events = nodes[a].node.get_and_clear_pending_msg_events();
447 assert_eq!(a_events.len(), 1);
448 let a_node_announcement = match a_events[0] {
449 MessageSendEvent::BroadcastNodeAnnouncement { ref msg } => {
452 _ => panic!("Unexpected event"),
455 nodes[b].node.broadcast_node_announcement([1, 1, 1], [1; 32], Vec::new());
456 let b_events = nodes[b].node.get_and_clear_pending_msg_events();
457 assert_eq!(b_events.len(), 1);
458 let b_node_announcement = match b_events[0] {
459 MessageSendEvent::BroadcastNodeAnnouncement { ref msg } => {
462 _ => panic!("Unexpected event"),
466 assert!(node.net_graph_msg_handler.handle_channel_announcement(&chan_announcement.0).unwrap());
467 node.net_graph_msg_handler.handle_channel_update(&chan_announcement.1).unwrap();
468 node.net_graph_msg_handler.handle_channel_update(&chan_announcement.2).unwrap();
469 node.net_graph_msg_handler.handle_node_announcement(&a_node_announcement).unwrap();
470 node.net_graph_msg_handler.handle_node_announcement(&b_node_announcement).unwrap();
472 (chan_announcement.1, chan_announcement.2, chan_announcement.3, chan_announcement.4)
475 macro_rules! check_spends {
476 ($tx: expr, $($spends_txn: expr),*) => {
478 let get_output = |out_point: &bitcoin::blockdata::transaction::OutPoint| {
480 if out_point.txid == $spends_txn.txid() {
481 return $spends_txn.output.get(out_point.vout as usize).cloned()
486 let mut total_value_in = 0;
487 for input in $tx.input.iter() {
488 total_value_in += get_output(&input.previous_output).unwrap().value;
490 let mut total_value_out = 0;
491 for output in $tx.output.iter() {
492 total_value_out += output.value;
494 let min_fee = $tx.get_weight() as u64 / 4; // One sat per vbyte
495 assert!(total_value_out + min_fee <= total_value_in); // Must not be equal as there must be a fee!
496 $tx.verify(get_output).unwrap();
501 macro_rules! get_closing_signed_broadcast {
502 ($node: expr, $dest_pubkey: expr) => {
504 let events = $node.get_and_clear_pending_msg_events();
505 assert!(events.len() == 1 || events.len() == 2);
506 (match events[events.len() - 1] {
507 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
508 assert_eq!(msg.contents.flags & 2, 2);
511 _ => panic!("Unexpected event"),
512 }, if events.len() == 2 {
514 MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => {
515 assert_eq!(*node_id, $dest_pubkey);
518 _ => panic!("Unexpected event"),
525 macro_rules! check_closed_broadcast {
526 ($node: expr, $with_error_msg: expr) => {{
527 let events = $node.node.get_and_clear_pending_msg_events();
528 assert_eq!(events.len(), if $with_error_msg { 2 } else { 1 });
530 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
531 assert_eq!(msg.contents.flags & 2, 2);
533 _ => panic!("Unexpected event"),
537 MessageSendEvent::HandleError { action: ErrorAction::SendErrorMessage { ref msg }, node_id: _ } => {
538 // TODO: Check node_id
541 _ => panic!("Unexpected event"),
547 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) {
548 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) };
549 let (node_b, broadcaster_b) = if close_inbound_first { (&outbound_node.node, &outbound_node.tx_broadcaster) } else { (&inbound_node.node, &inbound_node.tx_broadcaster) };
552 node_a.close_channel(channel_id).unwrap();
553 node_b.handle_shutdown(&node_a.get_our_node_id(), &get_event_msg!(struct_a, MessageSendEvent::SendShutdown, node_b.get_our_node_id()));
555 let events_1 = node_b.get_and_clear_pending_msg_events();
556 assert!(events_1.len() >= 1);
557 let shutdown_b = match events_1[0] {
558 MessageSendEvent::SendShutdown { ref node_id, ref msg } => {
559 assert_eq!(node_id, &node_a.get_our_node_id());
562 _ => panic!("Unexpected event"),
565 let closing_signed_b = if !close_inbound_first {
566 assert_eq!(events_1.len(), 1);
569 Some(match events_1[1] {
570 MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => {
571 assert_eq!(node_id, &node_a.get_our_node_id());
574 _ => panic!("Unexpected event"),
578 node_a.handle_shutdown(&node_b.get_our_node_id(), &shutdown_b);
579 let (as_update, bs_update) = if close_inbound_first {
580 assert!(node_a.get_and_clear_pending_msg_events().is_empty());
581 node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap());
582 assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1);
583 tx_a = broadcaster_a.txn_broadcasted.lock().unwrap().remove(0);
584 let (as_update, closing_signed_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id());
586 node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a.unwrap());
587 let (bs_update, none_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id());
588 assert!(none_b.is_none());
589 assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1);
590 tx_b = broadcaster_b.txn_broadcasted.lock().unwrap().remove(0);
591 (as_update, bs_update)
593 let closing_signed_a = get_event_msg!(struct_a, MessageSendEvent::SendClosingSigned, node_b.get_our_node_id());
595 node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a);
596 assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1);
597 tx_b = broadcaster_b.txn_broadcasted.lock().unwrap().remove(0);
598 let (bs_update, closing_signed_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id());
600 node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap());
601 let (as_update, none_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id());
602 assert!(none_a.is_none());
603 assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1);
604 tx_a = broadcaster_a.txn_broadcasted.lock().unwrap().remove(0);
605 (as_update, bs_update)
607 assert_eq!(tx_a, tx_b);
608 check_spends!(tx_a, funding_tx);
610 (as_update, bs_update, tx_a)
613 pub struct SendEvent {
614 pub node_id: PublicKey,
615 pub msgs: Vec<msgs::UpdateAddHTLC>,
616 pub commitment_msg: msgs::CommitmentSigned,
619 pub fn from_commitment_update(node_id: PublicKey, updates: msgs::CommitmentUpdate) -> SendEvent {
620 assert!(updates.update_fulfill_htlcs.is_empty());
621 assert!(updates.update_fail_htlcs.is_empty());
622 assert!(updates.update_fail_malformed_htlcs.is_empty());
623 assert!(updates.update_fee.is_none());
624 SendEvent { node_id: node_id, msgs: updates.update_add_htlcs, commitment_msg: updates.commitment_signed }
627 pub fn from_event(event: MessageSendEvent) -> SendEvent {
629 MessageSendEvent::UpdateHTLCs { node_id, updates } => SendEvent::from_commitment_update(node_id, updates),
630 _ => panic!("Unexpected event type!"),
634 pub fn from_node<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>) -> SendEvent {
635 let mut events = node.node.get_and_clear_pending_msg_events();
636 assert_eq!(events.len(), 1);
637 SendEvent::from_event(events.pop().unwrap())
641 macro_rules! commitment_signed_dance {
642 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr, true /* skip last step */) => {
644 check_added_monitors!($node_a, 0);
645 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
646 $node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed);
647 check_added_monitors!($node_a, 1);
648 commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, false);
651 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, true /* return extra message */, true /* return last RAA */) => {
653 let (as_revoke_and_ack, as_commitment_signed) = get_revoke_commit_msgs!($node_a, $node_b.node.get_our_node_id());
654 check_added_monitors!($node_b, 0);
655 assert!($node_b.node.get_and_clear_pending_msg_events().is_empty());
656 $node_b.node.handle_revoke_and_ack(&$node_a.node.get_our_node_id(), &as_revoke_and_ack);
657 assert!($node_b.node.get_and_clear_pending_msg_events().is_empty());
658 check_added_monitors!($node_b, 1);
659 $node_b.node.handle_commitment_signed(&$node_a.node.get_our_node_id(), &as_commitment_signed);
660 let (bs_revoke_and_ack, extra_msg_option) = {
661 let events = $node_b.node.get_and_clear_pending_msg_events();
662 assert!(events.len() <= 2);
664 MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
665 assert_eq!(*node_id, $node_a.node.get_our_node_id());
668 _ => panic!("Unexpected event"),
669 }, events.get(1).map(|e| e.clone()))
671 check_added_monitors!($node_b, 1);
673 assert!($node_a.node.get_and_clear_pending_events().is_empty());
674 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
676 (extra_msg_option, bs_revoke_and_ack)
679 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr, true /* skip last step */, false /* return extra message */, true /* return last RAA */) => {
681 check_added_monitors!($node_a, 0);
682 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
683 $node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed);
684 check_added_monitors!($node_a, 1);
685 let (extra_msg_option, bs_revoke_and_ack) = commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true, true);
686 assert!(extra_msg_option.is_none());
690 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, true /* return extra message */) => {
692 let (extra_msg_option, bs_revoke_and_ack) = commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true, true);
693 $node_a.node.handle_revoke_and_ack(&$node_b.node.get_our_node_id(), &bs_revoke_and_ack);
694 check_added_monitors!($node_a, 1);
698 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, false /* no extra message */) => {
700 assert!(commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true).is_none());
703 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr) => {
705 commitment_signed_dance!($node_a, $node_b, $commitment_signed, $fail_backwards, true);
707 expect_pending_htlcs_forwardable!($node_a);
708 check_added_monitors!($node_a, 1);
710 let channel_state = $node_a.node.channel_state.lock().unwrap();
711 assert_eq!(channel_state.pending_msg_events.len(), 1);
712 if let MessageSendEvent::UpdateHTLCs { ref node_id, .. } = channel_state.pending_msg_events[0] {
713 assert_ne!(*node_id, $node_b.node.get_our_node_id());
714 } else { panic!("Unexpected event"); }
716 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
722 macro_rules! get_payment_preimage_hash {
725 let payment_preimage = PaymentPreimage([*$node.network_payment_count.borrow(); 32]);
726 *$node.network_payment_count.borrow_mut() += 1;
727 let payment_hash = PaymentHash(Sha256::hash(&payment_preimage.0[..]).into_inner());
728 (payment_preimage, payment_hash)
733 macro_rules! expect_pending_htlcs_forwardable_ignore {
735 let events = $node.node.get_and_clear_pending_events();
736 assert_eq!(events.len(), 1);
738 Event::PendingHTLCsForwardable { .. } => { },
739 _ => panic!("Unexpected event"),
744 macro_rules! expect_pending_htlcs_forwardable {
746 expect_pending_htlcs_forwardable_ignore!($node);
747 $node.node.process_pending_htlc_forwards();
751 macro_rules! expect_payment_received {
752 ($node: expr, $expected_payment_hash: expr, $expected_recv_value: expr) => {
753 let events = $node.node.get_and_clear_pending_events();
754 assert_eq!(events.len(), 1);
756 Event::PaymentReceived { ref payment_hash, ref payment_secret, amt } => {
757 assert_eq!($expected_payment_hash, *payment_hash);
758 assert_eq!(None, *payment_secret);
759 assert_eq!($expected_recv_value, amt);
761 _ => panic!("Unexpected event"),
766 macro_rules! expect_payment_sent {
767 ($node: expr, $expected_payment_preimage: expr) => {
768 let events = $node.node.get_and_clear_pending_events();
769 assert_eq!(events.len(), 1);
771 Event::PaymentSent { ref payment_preimage } => {
772 assert_eq!($expected_payment_preimage, *payment_preimage);
774 _ => panic!("Unexpected event"),
779 macro_rules! expect_payment_failed {
780 ($node: expr, $expected_payment_hash: expr, $rejected_by_dest: expr $(, $expected_error_code: expr, $expected_error_data: expr)*) => {
781 let events = $node.node.get_and_clear_pending_events();
782 assert_eq!(events.len(), 1);
784 Event::PaymentFailed { ref payment_hash, rejected_by_dest, ref error_code, ref error_data } => {
785 assert_eq!(*payment_hash, $expected_payment_hash);
786 assert_eq!(rejected_by_dest, $rejected_by_dest);
787 assert!(error_code.is_some());
788 assert!(error_data.is_some());
790 assert_eq!(error_code.unwrap(), $expected_error_code);
791 assert_eq!(&error_data.as_ref().unwrap()[..], $expected_error_data);
794 _ => panic!("Unexpected event"),
799 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>) {
800 origin_node.node.send_payment(&route, our_payment_hash, &our_payment_secret).unwrap();
801 check_added_monitors!(origin_node, expected_paths.len());
802 pass_along_route(origin_node, expected_paths, recv_value, our_payment_hash, our_payment_secret);
805 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) {
806 let mut payment_event = SendEvent::from_event(ev);
807 let mut prev_node = origin_node;
809 for (idx, &node) in expected_path.iter().enumerate() {
810 assert_eq!(node.node.get_our_node_id(), payment_event.node_id);
812 node.node.handle_update_add_htlc(&prev_node.node.get_our_node_id(), &payment_event.msgs[0]);
813 check_added_monitors!(node, 0);
814 commitment_signed_dance!(node, prev_node, payment_event.commitment_msg, false);
816 expect_pending_htlcs_forwardable!(node);
818 if idx == expected_path.len() - 1 {
819 let events_2 = node.node.get_and_clear_pending_events();
820 if payment_received_expected {
821 assert_eq!(events_2.len(), 1);
823 Event::PaymentReceived { ref payment_hash, ref payment_secret, amt } => {
824 assert_eq!(our_payment_hash, *payment_hash);
825 assert_eq!(our_payment_secret, *payment_secret);
826 assert_eq!(amt, recv_value);
828 _ => panic!("Unexpected event"),
831 assert!(events_2.is_empty());
834 let mut events_2 = node.node.get_and_clear_pending_msg_events();
835 assert_eq!(events_2.len(), 1);
836 check_added_monitors!(node, 1);
837 payment_event = SendEvent::from_event(events_2.remove(0));
838 assert_eq!(payment_event.msgs.len(), 1);
845 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>) {
846 let mut events = origin_node.node.get_and_clear_pending_msg_events();
847 assert_eq!(events.len(), expected_route.len());
848 for (path_idx, (ev, expected_path)) in events.drain(..).zip(expected_route.iter()).enumerate() {
849 // Once we've gotten through all the HTLCs, the last one should result in a
850 // PaymentReceived (but each previous one should not!), .
851 let expect_payment = path_idx == expected_route.len() - 1;
852 pass_along_path(origin_node, expected_path, recv_value, our_payment_hash.clone(), our_payment_secret, ev, expect_payment);
856 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) {
857 send_along_route_with_secret(origin_node, route, &[expected_route], recv_value, our_payment_hash, None);
860 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) {
861 let (our_payment_preimage, our_payment_hash) = get_payment_preimage_hash!(origin_node);
862 send_along_route_with_hash(origin_node, route, expected_route, recv_value, our_payment_hash);
863 (our_payment_preimage, our_payment_hash)
866 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) {
867 for path in expected_paths.iter() {
868 assert_eq!(path.last().unwrap().node.get_our_node_id(), expected_paths[0].last().unwrap().node.get_our_node_id());
870 assert!(expected_paths[0].last().unwrap().node.claim_funds(our_payment_preimage, &our_payment_secret, expected_amount));
871 check_added_monitors!(expected_paths[0].last().unwrap(), expected_paths.len());
873 macro_rules! msgs_from_ev {
876 &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 } } => {
877 assert!(update_add_htlcs.is_empty());
878 assert_eq!(update_fulfill_htlcs.len(), 1);
879 assert!(update_fail_htlcs.is_empty());
880 assert!(update_fail_malformed_htlcs.is_empty());
881 assert!(update_fee.is_none());
882 ((update_fulfill_htlcs[0].clone(), commitment_signed.clone()), node_id.clone())
884 _ => panic!("Unexpected event"),
888 let mut per_path_msgs: Vec<((msgs::UpdateFulfillHTLC, msgs::CommitmentSigned), PublicKey)> = Vec::with_capacity(expected_paths.len());
889 let events = expected_paths[0].last().unwrap().node.get_and_clear_pending_msg_events();
890 assert_eq!(events.len(), expected_paths.len());
891 for ev in events.iter() {
892 per_path_msgs.push(msgs_from_ev!(ev));
895 for (expected_route, (path_msgs, next_hop)) in expected_paths.iter().zip(per_path_msgs.drain(..)) {
896 let mut next_msgs = Some(path_msgs);
897 let mut expected_next_node = next_hop;
899 macro_rules! last_update_fulfill_dance {
900 ($node: expr, $prev_node: expr) => {
902 $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
903 check_added_monitors!($node, 0);
904 assert!($node.node.get_and_clear_pending_msg_events().is_empty());
905 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, false);
909 macro_rules! mid_update_fulfill_dance {
910 ($node: expr, $prev_node: expr, $new_msgs: expr) => {
912 $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
913 check_added_monitors!($node, 1);
914 let new_next_msgs = if $new_msgs {
915 let events = $node.node.get_and_clear_pending_msg_events();
916 assert_eq!(events.len(), 1);
917 let (res, nexthop) = msgs_from_ev!(&events[0]);
918 expected_next_node = nexthop;
921 assert!($node.node.get_and_clear_pending_msg_events().is_empty());
924 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, false);
925 next_msgs = new_next_msgs;
930 let mut prev_node = expected_route.last().unwrap();
931 for (idx, node) in expected_route.iter().rev().enumerate().skip(1) {
932 assert_eq!(expected_next_node, node.node.get_our_node_id());
933 let update_next_msgs = !skip_last || idx != expected_route.len() - 1;
934 if next_msgs.is_some() {
935 mid_update_fulfill_dance!(node, prev_node, update_next_msgs);
937 assert!(!update_next_msgs);
938 assert!(node.node.get_and_clear_pending_msg_events().is_empty());
940 if !skip_last && idx == expected_route.len() - 1 {
941 assert_eq!(expected_next_node, origin_node.node.get_our_node_id());
948 last_update_fulfill_dance!(origin_node, expected_route.first().unwrap());
949 expect_payment_sent!(origin_node, our_payment_preimage);
954 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) {
955 claim_payment_along_route_with_secret(origin_node, &[expected_route], skip_last, our_payment_preimage, None, expected_amount);
958 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) {
959 claim_payment_along_route(origin_node, expected_route, false, our_payment_preimage, expected_amount);
962 pub const TEST_FINAL_CLTV: u32 = 32;
964 pub fn route_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) -> (PaymentPreimage, PaymentHash) {
965 let net_graph_msg_handler = &origin_node.net_graph_msg_handler;
966 let logger = test_utils::TestLogger::new();
967 let route = get_route(&origin_node.node.get_our_node_id(), net_graph_msg_handler, &expected_route.last().unwrap().node.get_our_node_id(), None, &Vec::new(), recv_value, TEST_FINAL_CLTV, &logger).unwrap();
968 assert_eq!(route.paths.len(), 1);
969 assert_eq!(route.paths[0].len(), expected_route.len());
970 for (node, hop) in expected_route.iter().zip(route.paths[0].iter()) {
971 assert_eq!(hop.pubkey, node.node.get_our_node_id());
974 send_along_route(origin_node, route, expected_route, recv_value)
977 pub fn route_over_limit<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) {
978 let logger = test_utils::TestLogger::new();
979 let net_graph_msg_handler = &origin_node.net_graph_msg_handler;
980 let route = get_route(&origin_node.node.get_our_node_id(), net_graph_msg_handler, &expected_route.last().unwrap().node.get_our_node_id(), None, &Vec::new(), recv_value, TEST_FINAL_CLTV, &logger).unwrap();
981 assert_eq!(route.paths.len(), 1);
982 assert_eq!(route.paths[0].len(), expected_route.len());
983 for (node, hop) in expected_route.iter().zip(route.paths[0].iter()) {
984 assert_eq!(hop.pubkey, node.node.get_our_node_id());
987 let (_, our_payment_hash) = get_payment_preimage_hash!(origin_node);
988 unwrap_send_err!(origin_node.node.send_payment(&route, our_payment_hash, &None), true, APIError::ChannelUnavailable { err },
989 assert_eq!(err, "Cannot send value that would put us over the max HTLC value in flight our peer will accept"));
992 pub fn send_payment<'a, 'b, 'c>(origin: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64, expected_value: u64) {
993 let our_payment_preimage = route_payment(&origin, expected_route, recv_value).0;
994 claim_payment(&origin, expected_route, our_payment_preimage, expected_value);
997 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) {
998 assert!(expected_route.last().unwrap().node.fail_htlc_backwards(&our_payment_hash, &None));
999 expect_pending_htlcs_forwardable!(expected_route.last().unwrap());
1000 check_added_monitors!(expected_route.last().unwrap(), 1);
1002 let mut next_msgs: Option<(msgs::UpdateFailHTLC, msgs::CommitmentSigned)> = None;
1003 macro_rules! update_fail_dance {
1004 ($node: expr, $prev_node: expr, $last_node: expr) => {
1006 $node.node.handle_update_fail_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
1007 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, !$last_node);
1008 if skip_last && $last_node {
1009 expect_pending_htlcs_forwardable!($node);
1015 let mut expected_next_node = expected_route.last().unwrap().node.get_our_node_id();
1016 let mut prev_node = expected_route.last().unwrap();
1017 for (idx, node) in expected_route.iter().rev().enumerate() {
1018 assert_eq!(expected_next_node, node.node.get_our_node_id());
1019 if next_msgs.is_some() {
1020 // We may be the "last node" for the purpose of the commitment dance if we're
1021 // skipping the last node (implying it is disconnected) and we're the
1022 // second-to-last node!
1023 update_fail_dance!(node, prev_node, skip_last && idx == expected_route.len() - 1);
1026 let events = node.node.get_and_clear_pending_msg_events();
1027 if !skip_last || idx != expected_route.len() - 1 {
1028 assert_eq!(events.len(), 1);
1030 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 } } => {
1031 assert!(update_add_htlcs.is_empty());
1032 assert!(update_fulfill_htlcs.is_empty());
1033 assert_eq!(update_fail_htlcs.len(), 1);
1034 assert!(update_fail_malformed_htlcs.is_empty());
1035 assert!(update_fee.is_none());
1036 expected_next_node = node_id.clone();
1037 next_msgs = Some((update_fail_htlcs[0].clone(), commitment_signed.clone()));
1039 _ => panic!("Unexpected event"),
1042 assert!(events.is_empty());
1044 if !skip_last && idx == expected_route.len() - 1 {
1045 assert_eq!(expected_next_node, origin_node.node.get_our_node_id());
1052 update_fail_dance!(origin_node, expected_route.first().unwrap(), true);
1054 let events = origin_node.node.get_and_clear_pending_events();
1055 assert_eq!(events.len(), 1);
1057 Event::PaymentFailed { payment_hash, rejected_by_dest, .. } => {
1058 assert_eq!(payment_hash, our_payment_hash);
1059 assert!(rejected_by_dest);
1061 _ => panic!("Unexpected event"),
1066 pub fn fail_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], our_payment_hash: PaymentHash) {
1067 fail_payment_along_route(origin_node, expected_route, false, our_payment_hash);
1070 pub fn create_chanmon_cfgs(node_count: usize) -> Vec<TestChanMonCfg> {
1071 let mut chan_mon_cfgs = Vec::new();
1072 for i in 0..node_count {
1073 let tx_broadcaster = test_utils::TestBroadcaster{txn_broadcasted: Mutex::new(Vec::new())};
1074 let fee_estimator = test_utils::TestFeeEstimator { sat_per_kw: 253 };
1075 let chain_monitor = chaininterface::ChainWatchInterfaceUtil::new(Network::Testnet);
1076 let logger = test_utils::TestLogger::with_id(format!("node {}", i));
1077 chan_mon_cfgs.push(TestChanMonCfg{ tx_broadcaster, fee_estimator, chain_monitor, logger });
1083 pub fn create_node_cfgs<'a>(node_count: usize, chanmon_cfgs: &'a Vec<TestChanMonCfg>) -> Vec<NodeCfg<'a>> {
1084 let mut nodes = Vec::new();
1085 let mut rng = thread_rng();
1087 for i in 0..node_count {
1088 let mut seed = [0; 32];
1089 rng.fill_bytes(&mut seed);
1090 let keys_manager = test_utils::TestKeysInterface::new(&seed, Network::Testnet);
1091 let chan_monitor = test_utils::TestChannelMonitor::new(&chanmon_cfgs[i].chain_monitor, &chanmon_cfgs[i].tx_broadcaster, &chanmon_cfgs[i].logger, &chanmon_cfgs[i].fee_estimator);
1092 nodes.push(NodeCfg { chain_monitor: &chanmon_cfgs[i].chain_monitor, 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 });
1098 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>> {
1099 let mut chanmgrs = Vec::new();
1100 for i in 0..node_count {
1101 let mut default_config = UserConfig::default();
1102 default_config.channel_options.announced_channel = true;
1103 default_config.peer_channel_config_limits.force_announced_channel_preference = false;
1104 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
1105 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).unwrap();
1106 chanmgrs.push(node);
1112 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>> {
1113 let mut nodes = Vec::new();
1114 let chan_count = Rc::new(RefCell::new(0));
1115 let payment_count = Rc::new(RefCell::new(0));
1117 for i in 0..node_count {
1118 let block_notifier = chaininterface::BlockNotifier::new(cfgs[i].chain_monitor);
1119 block_notifier.register_listener(&cfgs[i].chan_monitor.simple_monitor as &chaininterface::ChainListener);
1120 block_notifier.register_listener(&chan_mgrs[i] as &chaininterface::ChainListener);
1121 let net_graph_msg_handler = NetGraphMsgHandler::new(cfgs[i].chain_monitor, cfgs[i].logger);
1122 nodes.push(Node{ chain_monitor: &cfgs[i].chain_monitor, block_notifier,
1123 tx_broadcaster: cfgs[i].tx_broadcaster, chan_monitor: &cfgs[i].chan_monitor,
1124 keys_manager: &cfgs[i].keys_manager, node: &chan_mgrs[i], net_graph_msg_handler,
1125 node_seed: cfgs[i].node_seed, network_chan_count: chan_count.clone(),
1126 network_payment_count: payment_count.clone(), logger: cfgs[i].logger,
1133 pub const ACCEPTED_HTLC_SCRIPT_WEIGHT: usize = 138; //Here we have a diff due to HTLC CLTV expiry being < 2^15 in test
1134 pub const OFFERED_HTLC_SCRIPT_WEIGHT: usize = 133;
1136 #[derive(PartialEq)]
1137 pub enum HTLCType { NONE, TIMEOUT, SUCCESS }
1138 /// Tests that the given node has broadcast transactions for the given Channel
1140 /// First checks that the latest local commitment tx has been broadcast, unless an explicit
1141 /// commitment_tx is provided, which may be used to test that a remote commitment tx was
1142 /// broadcast and the revoked outputs were claimed.
1144 /// Next tests that there is (or is not) a transaction that spends the commitment transaction
1145 /// that appears to be the type of HTLC transaction specified in has_htlc_tx.
1147 /// All broadcast transactions must be accounted for in one of the above three types of we'll
1149 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> {
1150 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
1151 assert!(node_txn.len() >= if commitment_tx.is_some() { 0 } else { 1 } + if has_htlc_tx == HTLCType::NONE { 0 } else { 1 });
1153 let mut res = Vec::with_capacity(2);
1154 node_txn.retain(|tx| {
1155 if tx.input.len() == 1 && tx.input[0].previous_output.txid == chan.3.txid() {
1156 check_spends!(tx, chan.3);
1157 if commitment_tx.is_none() {
1158 res.push(tx.clone());
1163 if let Some(explicit_tx) = commitment_tx {
1164 res.push(explicit_tx.clone());
1167 assert_eq!(res.len(), 1);
1169 if has_htlc_tx != HTLCType::NONE {
1170 node_txn.retain(|tx| {
1171 if tx.input.len() == 1 && tx.input[0].previous_output.txid == res[0].txid() {
1172 check_spends!(tx, res[0]);
1173 if has_htlc_tx == HTLCType::TIMEOUT {
1174 assert!(tx.lock_time != 0);
1176 assert!(tx.lock_time == 0);
1178 res.push(tx.clone());
1182 assert!(res.len() == 2 || res.len() == 3);
1184 assert_eq!(res[1], res[2]);
1188 assert!(node_txn.is_empty());
1192 /// Tests that the given node has broadcast a claim transaction against the provided revoked
1193 /// HTLC transaction.
1194 pub fn test_revoked_htlc_claim_txn_broadcast<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, revoked_tx: Transaction, commitment_revoked_tx: Transaction) {
1195 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
1196 // We may issue multiple claiming transaction on revoked outputs due to block rescan
1197 // for revoked htlc outputs
1198 if node_txn.len() != 1 && node_txn.len() != 2 && node_txn.len() != 3 { assert!(false); }
1199 node_txn.retain(|tx| {
1200 if tx.input.len() == 1 && tx.input[0].previous_output.txid == revoked_tx.txid() {
1201 check_spends!(tx, revoked_tx);
1205 node_txn.retain(|tx| {
1206 check_spends!(tx, commitment_revoked_tx);
1209 assert!(node_txn.is_empty());
1212 pub fn check_preimage_claim<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, prev_txn: &Vec<Transaction>) -> Vec<Transaction> {
1213 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
1215 assert!(node_txn.len() >= 1);
1216 assert_eq!(node_txn[0].input.len(), 1);
1217 let mut found_prev = false;
1219 for tx in prev_txn {
1220 if node_txn[0].input[0].previous_output.txid == tx.txid() {
1221 check_spends!(node_txn[0], tx);
1222 assert!(node_txn[0].input[0].witness[2].len() > 106); // must spend an htlc output
1223 assert_eq!(tx.input.len(), 1); // must spend a commitment tx
1229 assert!(found_prev);
1231 let mut res = Vec::new();
1232 mem::swap(&mut *node_txn, &mut res);
1236 pub fn get_announce_close_broadcast_events<'a, 'b, 'c>(nodes: &Vec<Node<'a, 'b, 'c>>, a: usize, b: usize) {
1237 let events_1 = nodes[a].node.get_and_clear_pending_msg_events();
1238 assert_eq!(events_1.len(), 1);
1239 let as_update = match events_1[0] {
1240 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
1243 _ => panic!("Unexpected event"),
1246 let events_2 = nodes[b].node.get_and_clear_pending_msg_events();
1247 assert_eq!(events_2.len(), 1);
1248 let bs_update = match events_2[0] {
1249 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
1252 _ => panic!("Unexpected event"),
1256 node.net_graph_msg_handler.handle_channel_update(&as_update).unwrap();
1257 node.net_graph_msg_handler.handle_channel_update(&bs_update).unwrap();
1261 macro_rules! get_channel_value_stat {
1262 ($node: expr, $channel_id: expr) => {{
1263 let chan_lock = $node.node.channel_state.lock().unwrap();
1264 let chan = chan_lock.by_id.get(&$channel_id).unwrap();
1265 chan.get_value_stat()
1269 macro_rules! get_chan_reestablish_msgs {
1270 ($src_node: expr, $dst_node: expr) => {
1272 let mut res = Vec::with_capacity(1);
1273 for msg in $src_node.node.get_and_clear_pending_msg_events() {
1274 if let MessageSendEvent::SendChannelReestablish { ref node_id, ref msg } = msg {
1275 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1276 res.push(msg.clone());
1278 panic!("Unexpected event")
1286 macro_rules! handle_chan_reestablish_msgs {
1287 ($src_node: expr, $dst_node: expr) => {
1289 let msg_events = $src_node.node.get_and_clear_pending_msg_events();
1291 let funding_locked = if let Some(&MessageSendEvent::SendFundingLocked { ref node_id, ref msg }) = msg_events.get(0) {
1293 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1299 let mut revoke_and_ack = None;
1300 let mut commitment_update = None;
1301 let order = if let Some(ev) = msg_events.get(idx) {
1304 &MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
1305 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1306 revoke_and_ack = Some(msg.clone());
1307 RAACommitmentOrder::RevokeAndACKFirst
1309 &MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
1310 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1311 commitment_update = Some(updates.clone());
1312 RAACommitmentOrder::CommitmentFirst
1314 _ => panic!("Unexpected event"),
1317 RAACommitmentOrder::CommitmentFirst
1320 if let Some(ev) = msg_events.get(idx) {
1322 &MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
1323 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1324 assert!(revoke_and_ack.is_none());
1325 revoke_and_ack = Some(msg.clone());
1327 &MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
1328 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1329 assert!(commitment_update.is_none());
1330 commitment_update = Some(updates.clone());
1332 _ => panic!("Unexpected event"),
1336 (funding_locked, revoke_and_ack, commitment_update, order)
1341 /// pending_htlc_adds includes both the holding cell and in-flight update_add_htlcs, whereas
1342 /// for claims/fails they are separated out.
1343 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)) {
1344 node_a.node.peer_connected(&node_b.node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1345 let reestablish_1 = get_chan_reestablish_msgs!(node_a, node_b);
1346 node_b.node.peer_connected(&node_a.node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1347 let reestablish_2 = get_chan_reestablish_msgs!(node_b, node_a);
1349 if send_funding_locked.0 {
1350 // If a expects a funding_locked, it better not think it has received a revoke_and_ack
1352 for reestablish in reestablish_1.iter() {
1353 assert_eq!(reestablish.next_remote_commitment_number, 0);
1356 if send_funding_locked.1 {
1357 // If b expects a funding_locked, it better not think it has received a revoke_and_ack
1359 for reestablish in reestablish_2.iter() {
1360 assert_eq!(reestablish.next_remote_commitment_number, 0);
1363 if send_funding_locked.0 || send_funding_locked.1 {
1364 // If we expect any funding_locked's, both sides better have set
1365 // next_local_commitment_number to 1
1366 for reestablish in reestablish_1.iter() {
1367 assert_eq!(reestablish.next_local_commitment_number, 1);
1369 for reestablish in reestablish_2.iter() {
1370 assert_eq!(reestablish.next_local_commitment_number, 1);
1374 let mut resp_1 = Vec::new();
1375 for msg in reestablish_1 {
1376 node_b.node.handle_channel_reestablish(&node_a.node.get_our_node_id(), &msg);
1377 resp_1.push(handle_chan_reestablish_msgs!(node_b, node_a));
1379 if pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 {
1380 check_added_monitors!(node_b, 1);
1382 check_added_monitors!(node_b, 0);
1385 let mut resp_2 = Vec::new();
1386 for msg in reestablish_2 {
1387 node_a.node.handle_channel_reestablish(&node_b.node.get_our_node_id(), &msg);
1388 resp_2.push(handle_chan_reestablish_msgs!(node_a, node_b));
1390 if pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 {
1391 check_added_monitors!(node_a, 1);
1393 check_added_monitors!(node_a, 0);
1396 // We don't yet support both needing updates, as that would require a different commitment dance:
1397 assert!((pending_htlc_adds.0 == 0 && pending_htlc_claims.0 == 0 && pending_cell_htlc_claims.0 == 0 && pending_cell_htlc_fails.0 == 0) ||
1398 (pending_htlc_adds.1 == 0 && pending_htlc_claims.1 == 0 && pending_cell_htlc_claims.1 == 0 && pending_cell_htlc_fails.1 == 0));
1400 for chan_msgs in resp_1.drain(..) {
1401 if send_funding_locked.0 {
1402 node_a.node.handle_funding_locked(&node_b.node.get_our_node_id(), &chan_msgs.0.unwrap());
1403 let announcement_event = node_a.node.get_and_clear_pending_msg_events();
1404 if !announcement_event.is_empty() {
1405 assert_eq!(announcement_event.len(), 1);
1406 if let MessageSendEvent::SendAnnouncementSignatures { .. } = announcement_event[0] {
1407 //TODO: Test announcement_sigs re-sending
1408 } else { panic!("Unexpected event!"); }
1411 assert!(chan_msgs.0.is_none());
1414 assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst);
1415 node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &chan_msgs.1.unwrap());
1416 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
1417 check_added_monitors!(node_a, 1);
1419 assert!(chan_msgs.1.is_none());
1421 if pending_htlc_adds.0 != 0 || pending_htlc_claims.0 != 0 || pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 {
1422 let commitment_update = chan_msgs.2.unwrap();
1423 if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed
1424 assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.0 as usize);
1426 assert!(commitment_update.update_add_htlcs.is_empty());
1428 assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.0 + pending_cell_htlc_claims.0);
1429 assert_eq!(commitment_update.update_fail_htlcs.len(), pending_cell_htlc_fails.0);
1430 assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
1431 for update_add in commitment_update.update_add_htlcs {
1432 node_a.node.handle_update_add_htlc(&node_b.node.get_our_node_id(), &update_add);
1434 for update_fulfill in commitment_update.update_fulfill_htlcs {
1435 node_a.node.handle_update_fulfill_htlc(&node_b.node.get_our_node_id(), &update_fulfill);
1437 for update_fail in commitment_update.update_fail_htlcs {
1438 node_a.node.handle_update_fail_htlc(&node_b.node.get_our_node_id(), &update_fail);
1441 if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed
1442 commitment_signed_dance!(node_a, node_b, commitment_update.commitment_signed, false);
1444 node_a.node.handle_commitment_signed(&node_b.node.get_our_node_id(), &commitment_update.commitment_signed);
1445 check_added_monitors!(node_a, 1);
1446 let as_revoke_and_ack = get_event_msg!(node_a, MessageSendEvent::SendRevokeAndACK, node_b.node.get_our_node_id());
1447 // No commitment_signed so get_event_msg's assert(len == 1) passes
1448 node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &as_revoke_and_ack);
1449 assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
1450 check_added_monitors!(node_b, 1);
1453 assert!(chan_msgs.2.is_none());
1457 for chan_msgs in resp_2.drain(..) {
1458 if send_funding_locked.1 {
1459 node_b.node.handle_funding_locked(&node_a.node.get_our_node_id(), &chan_msgs.0.unwrap());
1460 let announcement_event = node_b.node.get_and_clear_pending_msg_events();
1461 if !announcement_event.is_empty() {
1462 assert_eq!(announcement_event.len(), 1);
1463 if let MessageSendEvent::SendAnnouncementSignatures { .. } = announcement_event[0] {
1464 //TODO: Test announcement_sigs re-sending
1465 } else { panic!("Unexpected event!"); }
1468 assert!(chan_msgs.0.is_none());
1471 assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst);
1472 node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &chan_msgs.1.unwrap());
1473 assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
1474 check_added_monitors!(node_b, 1);
1476 assert!(chan_msgs.1.is_none());
1478 if pending_htlc_adds.1 != 0 || pending_htlc_claims.1 != 0 || pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 {
1479 let commitment_update = chan_msgs.2.unwrap();
1480 if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed
1481 assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.1 as usize);
1483 assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.0 + pending_cell_htlc_claims.0);
1484 assert_eq!(commitment_update.update_fail_htlcs.len(), pending_cell_htlc_fails.0);
1485 assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
1486 for update_add in commitment_update.update_add_htlcs {
1487 node_b.node.handle_update_add_htlc(&node_a.node.get_our_node_id(), &update_add);
1489 for update_fulfill in commitment_update.update_fulfill_htlcs {
1490 node_b.node.handle_update_fulfill_htlc(&node_a.node.get_our_node_id(), &update_fulfill);
1492 for update_fail in commitment_update.update_fail_htlcs {
1493 node_b.node.handle_update_fail_htlc(&node_a.node.get_our_node_id(), &update_fail);
1496 if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed
1497 commitment_signed_dance!(node_b, node_a, commitment_update.commitment_signed, false);
1499 node_b.node.handle_commitment_signed(&node_a.node.get_our_node_id(), &commitment_update.commitment_signed);
1500 check_added_monitors!(node_b, 1);
1501 let bs_revoke_and_ack = get_event_msg!(node_b, MessageSendEvent::SendRevokeAndACK, node_a.node.get_our_node_id());
1502 // No commitment_signed so get_event_msg's assert(len == 1) passes
1503 node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &bs_revoke_and_ack);
1504 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
1505 check_added_monitors!(node_a, 1);
1508 assert!(chan_msgs.2.is_none());