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 chain::keysinterface::KeysInterface;
7 use ln::channelmanager::{ChannelManager, ChannelManagerReadArgs, RAACommitmentOrder, PaymentPreimage, PaymentHash};
8 use ln::channelmonitor::{ChannelMonitor, ManyChannelMonitor};
9 use ln::router::{Route, Router, RouterReadArgs};
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::logger::Logger;
19 use util::config::UserConfig;
20 use util::ser::{ReadableArgs, Writeable};
22 use bitcoin::util::hash::BitcoinHash;
23 use bitcoin::blockdata::block::BlockHeader;
24 use bitcoin::blockdata::transaction::{Transaction, TxOut};
25 use bitcoin::network::constants::Network;
27 use bitcoin_hashes::sha256::Hash as Sha256;
28 use bitcoin_hashes::sha256d::Hash as Sha256d;
29 use bitcoin_hashes::Hash;
31 use secp256k1::Secp256k1;
32 use secp256k1::key::PublicKey;
34 use rand::{thread_rng,Rng};
36 use std::cell::RefCell;
38 use std::sync::{Arc, Mutex};
40 use std::collections::HashMap;
42 pub const CHAN_CONFIRM_DEPTH: u32 = 100;
43 pub fn confirm_transaction<'a, 'b: 'a>(notifier: &'a chaininterface::BlockNotifierRef<'b>, chain: &chaininterface::ChainWatchInterfaceUtil, tx: &Transaction, chan_id: u32) {
44 assert!(chain.does_match_tx(tx));
45 let mut header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
46 notifier.block_connected_checked(&header, 1, &[tx; 1], &[chan_id; 1]);
47 for i in 2..CHAN_CONFIRM_DEPTH {
48 header = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
49 notifier.block_connected_checked(&header, i, &vec![], &[0; 0]);
53 pub fn connect_blocks<'a, 'b>(notifier: &'a chaininterface::BlockNotifierRef<'b>, depth: u32, height: u32, parent: bool, prev_blockhash: Sha256d) -> Sha256d {
54 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 };
55 notifier.block_connected_checked(&header, height + 1, &Vec::new(), &Vec::new());
56 for i in 2..depth + 1 {
57 header = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
58 notifier.block_connected_checked(&header, height + i, &Vec::new(), &Vec::new());
63 pub struct TestChanMonCfg {
64 pub tx_broadcaster: test_utils::TestBroadcaster,
65 pub fee_estimator: test_utils::TestFeeEstimator,
68 pub struct NodeCfg<'a> {
69 pub chain_monitor: Arc<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: Arc<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>,
80 pub chain_monitor: Arc<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>,
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: Arc<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 self.router.write(&mut w).unwrap();
104 let deserialized_router = Router::read(&mut ::std::io::Cursor::new(&w.0), RouterReadArgs {
105 chain_monitor: Arc::clone(&self.chain_monitor) as Arc<chaininterface::ChainWatchInterface>,
106 logger: Arc::clone(&self.logger) as Arc<Logger>
108 let mut chan_progress = 0;
110 let orig_announcements = self.router.get_next_channel_announcements(chan_progress, 255);
111 let deserialized_announcements = deserialized_router.get_next_channel_announcements(chan_progress, 255);
112 assert!(orig_announcements == deserialized_announcements);
113 chan_progress = match orig_announcements.last() {
114 Some(announcement) => announcement.0.contents.short_channel_id + 1,
118 let mut node_progress = None;
120 let orig_announcements = self.router.get_next_node_announcements(node_progress.as_ref(), 255);
121 let deserialized_announcements = deserialized_router.get_next_node_announcements(node_progress.as_ref(), 255);
122 assert!(orig_announcements == deserialized_announcements);
123 node_progress = match orig_announcements.last() {
124 Some(announcement) => Some(announcement.contents.node_id),
130 // Check that if we serialize and then deserialize all our channel monitors we get the
131 // same set of outputs to watch for on chain as we have now. Note that if we write
132 // tests that fully close channels and remove the monitors at some point this may break.
133 let feeest = test_utils::TestFeeEstimator { sat_per_kw: 253 };
134 let mut deserialized_monitors = Vec::new();
136 let old_monitors = self.chan_monitor.simple_monitor.monitors.lock().unwrap();
137 for (_, old_monitor) in old_monitors.iter() {
138 let mut w = test_utils::TestVecWriter(Vec::new());
139 old_monitor.write_for_disk(&mut w).unwrap();
140 let (_, deserialized_monitor) = <(Sha256d, ChannelMonitor<EnforcingChannelKeys>)>::read(
141 &mut ::std::io::Cursor::new(&w.0), Arc::clone(&self.logger) as Arc<Logger>).unwrap();
142 deserialized_monitors.push(deserialized_monitor);
146 // Before using all the new monitors to check the watch outpoints, use the full set of
147 // them to ensure we can write and reload our ChannelManager.
149 let mut channel_monitors = HashMap::new();
150 for monitor in deserialized_monitors.iter_mut() {
151 channel_monitors.insert(monitor.get_funding_txo().unwrap(), monitor);
154 let mut w = test_utils::TestVecWriter(Vec::new());
155 self.node.write(&mut w).unwrap();
156 <(Sha256d, ChannelManager<EnforcingChannelKeys, &test_utils::TestChannelMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator>)>::read(&mut ::std::io::Cursor::new(w.0), ChannelManagerReadArgs {
157 default_config: UserConfig::default(),
158 keys_manager: self.keys_manager,
159 fee_estimator: &test_utils::TestFeeEstimator { sat_per_kw: 253 },
160 monitor: self.chan_monitor,
161 tx_broadcaster: self.tx_broadcaster.clone(),
162 logger: Arc::new(test_utils::TestLogger::new()),
163 channel_monitors: &mut channel_monitors,
167 let chain_watch = Arc::new(chaininterface::ChainWatchInterfaceUtil::new(Network::Testnet, Arc::clone(&self.logger) as Arc<Logger>));
168 let channel_monitor = test_utils::TestChannelMonitor::new(chain_watch.clone(), self.tx_broadcaster.clone(), self.logger.clone(), &feeest);
169 for deserialized_monitor in deserialized_monitors.drain(..) {
170 if let Err(_) = channel_monitor.add_monitor(deserialized_monitor.get_funding_txo().unwrap(), deserialized_monitor) {
174 if *chain_watch != *self.chain_monitor {
181 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) {
182 create_chan_between_nodes_with_value(node_a, node_b, 100000, 10001, a_flags, b_flags)
185 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) {
186 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);
187 let (announcement, as_update, bs_update) = create_chan_between_nodes_with_value_b(node_a, node_b, &funding_locked);
188 (announcement, as_update, bs_update, channel_id, tx)
191 macro_rules! get_revoke_commit_msgs {
192 ($node: expr, $node_id: expr) => {
194 let events = $node.node.get_and_clear_pending_msg_events();
195 assert_eq!(events.len(), 2);
197 MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
198 assert_eq!(*node_id, $node_id);
201 _ => panic!("Unexpected event"),
203 MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
204 assert_eq!(*node_id, $node_id);
205 assert!(updates.update_add_htlcs.is_empty());
206 assert!(updates.update_fulfill_htlcs.is_empty());
207 assert!(updates.update_fail_htlcs.is_empty());
208 assert!(updates.update_fail_malformed_htlcs.is_empty());
209 assert!(updates.update_fee.is_none());
210 updates.commitment_signed.clone()
212 _ => panic!("Unexpected event"),
218 macro_rules! get_event_msg {
219 ($node: expr, $event_type: path, $node_id: expr) => {
221 let events = $node.node.get_and_clear_pending_msg_events();
222 assert_eq!(events.len(), 1);
224 $event_type { ref node_id, ref msg } => {
225 assert_eq!(*node_id, $node_id);
228 _ => panic!("Unexpected event"),
234 macro_rules! get_htlc_update_msgs {
235 ($node: expr, $node_id: expr) => {
237 let events = $node.node.get_and_clear_pending_msg_events();
238 assert_eq!(events.len(), 1);
240 MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
241 assert_eq!(*node_id, $node_id);
244 _ => panic!("Unexpected event"),
250 macro_rules! get_feerate {
251 ($node: expr, $channel_id: expr) => {
253 let chan_lock = $node.node.channel_state.lock().unwrap();
254 let chan = chan_lock.by_id.get(&$channel_id).unwrap();
260 macro_rules! get_local_commitment_txn {
261 ($node: expr, $channel_id: expr) => {
262 $node.node.channel_state.lock().unwrap().by_id.get_mut(&$channel_id).unwrap().channel_monitor().get_latest_local_commitment_txn()
266 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) {
267 let chan_id = *node.network_chan_count.borrow();
269 let events = node.node.get_and_clear_pending_events();
270 assert_eq!(events.len(), 1);
272 Event::FundingGenerationReady { ref temporary_channel_id, ref channel_value_satoshis, ref output_script, user_channel_id } => {
273 assert_eq!(*channel_value_satoshis, expected_chan_value);
274 assert_eq!(user_channel_id, expected_user_chan_id);
276 let tx = Transaction { version: chan_id as u32, lock_time: 0, input: Vec::new(), output: vec![TxOut {
277 value: *channel_value_satoshis, script_pubkey: output_script.clone(),
279 let funding_outpoint = OutPoint::new(tx.txid(), 0);
280 (*temporary_channel_id, tx, funding_outpoint)
282 _ => panic!("Unexpected event"),
286 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 {
287 node_a.node.create_channel(node_b.node.get_our_node_id(), channel_value, push_msat, 42, None).unwrap();
288 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()));
289 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()));
291 let (temporary_channel_id, tx, funding_output) = create_funding_transaction(node_a, channel_value, 42);
294 node_a.node.funding_transaction_generated(&temporary_channel_id, funding_output);
295 let mut added_monitors = node_a.chan_monitor.added_monitors.lock().unwrap();
296 assert_eq!(added_monitors.len(), 1);
297 assert_eq!(added_monitors[0].0, funding_output);
298 added_monitors.clear();
301 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()));
303 let mut added_monitors = node_b.chan_monitor.added_monitors.lock().unwrap();
304 assert_eq!(added_monitors.len(), 1);
305 assert_eq!(added_monitors[0].0, funding_output);
306 added_monitors.clear();
309 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()));
311 let mut added_monitors = node_a.chan_monitor.added_monitors.lock().unwrap();
312 assert_eq!(added_monitors.len(), 1);
313 assert_eq!(added_monitors[0].0, funding_output);
314 added_monitors.clear();
317 let events_4 = node_a.node.get_and_clear_pending_events();
318 assert_eq!(events_4.len(), 1);
320 Event::FundingBroadcastSafe { ref funding_txo, user_channel_id } => {
321 assert_eq!(user_channel_id, 42);
322 assert_eq!(*funding_txo, funding_output);
324 _ => panic!("Unexpected event"),
330 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) {
331 confirm_transaction(&node_conf.block_notifier, &node_conf.chain_monitor, &tx, tx.version);
332 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()));
335 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]) {
337 let events_6 = node_conf.node.get_and_clear_pending_msg_events();
338 assert_eq!(events_6.len(), 2);
339 ((match events_6[0] {
340 MessageSendEvent::SendFundingLocked { ref node_id, ref msg } => {
341 channel_id = msg.channel_id.clone();
342 assert_eq!(*node_id, node_recv.node.get_our_node_id());
345 _ => panic!("Unexpected event"),
346 }, match events_6[1] {
347 MessageSendEvent::SendAnnouncementSignatures { ref node_id, ref msg } => {
348 assert_eq!(*node_id, node_recv.node.get_our_node_id());
351 _ => panic!("Unexpected event"),
355 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]) {
356 create_chan_between_nodes_with_value_confirm_first(node_a, node_b, tx);
357 confirm_transaction(&node_a.block_notifier, &node_a.chain_monitor, &tx, tx.version);
358 create_chan_between_nodes_with_value_confirm_second(node_b, node_a)
361 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) {
362 let tx = create_chan_between_nodes_with_value_init(node_a, node_b, channel_value, push_msat, a_flags, b_flags);
363 let (msgs, chan_id) = create_chan_between_nodes_with_value_confirm(node_a, node_b, &tx);
367 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) {
368 node_b.node.handle_funding_locked(&node_a.node.get_our_node_id(), &as_funding_msgs.0);
369 let bs_announcement_sigs = get_event_msg!(node_b, MessageSendEvent::SendAnnouncementSignatures, node_a.node.get_our_node_id());
370 node_b.node.handle_announcement_signatures(&node_a.node.get_our_node_id(), &as_funding_msgs.1);
372 let events_7 = node_b.node.get_and_clear_pending_msg_events();
373 assert_eq!(events_7.len(), 1);
374 let (announcement, bs_update) = match events_7[0] {
375 MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
378 _ => panic!("Unexpected event"),
381 node_a.node.handle_announcement_signatures(&node_b.node.get_our_node_id(), &bs_announcement_sigs);
382 let events_8 = node_a.node.get_and_clear_pending_msg_events();
383 assert_eq!(events_8.len(), 1);
384 let as_update = match events_8[0] {
385 MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
386 assert!(*announcement == *msg);
387 assert_eq!(update_msg.contents.short_channel_id, announcement.contents.short_channel_id);
388 assert_eq!(update_msg.contents.short_channel_id, bs_update.contents.short_channel_id);
391 _ => panic!("Unexpected event"),
394 *node_a.network_chan_count.borrow_mut() += 1;
396 ((*announcement).clone(), (*as_update).clone(), (*bs_update).clone())
399 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) {
400 create_announced_chan_between_nodes_with_value(nodes, a, b, 100000, 10001, a_flags, b_flags)
403 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) {
404 let chan_announcement = create_chan_between_nodes_with_value(&nodes[a], &nodes[b], channel_value, push_msat, a_flags, b_flags);
406 nodes[a].node.broadcast_node_announcement([0, 0, 0], [0; 32], Vec::new());
407 let a_events = nodes[a].node.get_and_clear_pending_msg_events();
408 assert_eq!(a_events.len(), 1);
409 let a_node_announcement = match a_events[0] {
410 MessageSendEvent::BroadcastNodeAnnouncement { ref msg } => {
413 _ => panic!("Unexpected event"),
416 nodes[b].node.broadcast_node_announcement([1, 1, 1], [1; 32], Vec::new());
417 let b_events = nodes[b].node.get_and_clear_pending_msg_events();
418 assert_eq!(b_events.len(), 1);
419 let b_node_announcement = match b_events[0] {
420 MessageSendEvent::BroadcastNodeAnnouncement { ref msg } => {
423 _ => panic!("Unexpected event"),
427 assert!(node.router.handle_channel_announcement(&chan_announcement.0).unwrap());
428 node.router.handle_channel_update(&chan_announcement.1).unwrap();
429 node.router.handle_channel_update(&chan_announcement.2).unwrap();
430 node.router.handle_node_announcement(&a_node_announcement).unwrap();
431 node.router.handle_node_announcement(&b_node_announcement).unwrap();
433 (chan_announcement.1, chan_announcement.2, chan_announcement.3, chan_announcement.4)
436 macro_rules! check_spends {
437 ($tx: expr, $($spends_txn: expr),*) => {
439 $tx.verify(|out_point| {
441 if out_point.txid == $spends_txn.txid() {
442 return $spends_txn.output.get(out_point.vout as usize).cloned()
451 macro_rules! get_closing_signed_broadcast {
452 ($node: expr, $dest_pubkey: expr) => {
454 let events = $node.get_and_clear_pending_msg_events();
455 assert!(events.len() == 1 || events.len() == 2);
456 (match events[events.len() - 1] {
457 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
458 assert_eq!(msg.contents.flags & 2, 2);
461 _ => panic!("Unexpected event"),
462 }, if events.len() == 2 {
464 MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => {
465 assert_eq!(*node_id, $dest_pubkey);
468 _ => panic!("Unexpected event"),
475 macro_rules! check_closed_broadcast {
476 ($node: expr, $with_error_msg: expr) => {{
477 let events = $node.node.get_and_clear_pending_msg_events();
478 assert_eq!(events.len(), if $with_error_msg { 2 } else { 1 });
480 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
481 assert_eq!(msg.contents.flags & 2, 2);
483 _ => panic!("Unexpected event"),
487 MessageSendEvent::HandleError { action: ErrorAction::SendErrorMessage { ref msg }, node_id: _ } => {
488 // TODO: Check node_id
491 _ => panic!("Unexpected event"),
497 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) {
498 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) };
499 let (node_b, broadcaster_b) = if close_inbound_first { (&outbound_node.node, &outbound_node.tx_broadcaster) } else { (&inbound_node.node, &inbound_node.tx_broadcaster) };
502 node_a.close_channel(channel_id).unwrap();
503 node_b.handle_shutdown(&node_a.get_our_node_id(), &get_event_msg!(struct_a, MessageSendEvent::SendShutdown, node_b.get_our_node_id()));
505 let events_1 = node_b.get_and_clear_pending_msg_events();
506 assert!(events_1.len() >= 1);
507 let shutdown_b = match events_1[0] {
508 MessageSendEvent::SendShutdown { ref node_id, ref msg } => {
509 assert_eq!(node_id, &node_a.get_our_node_id());
512 _ => panic!("Unexpected event"),
515 let closing_signed_b = if !close_inbound_first {
516 assert_eq!(events_1.len(), 1);
519 Some(match events_1[1] {
520 MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => {
521 assert_eq!(node_id, &node_a.get_our_node_id());
524 _ => panic!("Unexpected event"),
528 node_a.handle_shutdown(&node_b.get_our_node_id(), &shutdown_b);
529 let (as_update, bs_update) = if close_inbound_first {
530 assert!(node_a.get_and_clear_pending_msg_events().is_empty());
531 node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap());
532 assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1);
533 tx_a = broadcaster_a.txn_broadcasted.lock().unwrap().remove(0);
534 let (as_update, closing_signed_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id());
536 node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a.unwrap());
537 let (bs_update, none_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id());
538 assert!(none_b.is_none());
539 assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1);
540 tx_b = broadcaster_b.txn_broadcasted.lock().unwrap().remove(0);
541 (as_update, bs_update)
543 let closing_signed_a = get_event_msg!(struct_a, MessageSendEvent::SendClosingSigned, node_b.get_our_node_id());
545 node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a);
546 assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1);
547 tx_b = broadcaster_b.txn_broadcasted.lock().unwrap().remove(0);
548 let (bs_update, closing_signed_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id());
550 node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap());
551 let (as_update, none_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id());
552 assert!(none_a.is_none());
553 assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1);
554 tx_a = broadcaster_a.txn_broadcasted.lock().unwrap().remove(0);
555 (as_update, bs_update)
557 assert_eq!(tx_a, tx_b);
558 check_spends!(tx_a, funding_tx);
560 (as_update, bs_update, tx_a)
563 pub struct SendEvent {
564 pub node_id: PublicKey,
565 pub msgs: Vec<msgs::UpdateAddHTLC>,
566 pub commitment_msg: msgs::CommitmentSigned,
569 pub fn from_commitment_update(node_id: PublicKey, updates: msgs::CommitmentUpdate) -> SendEvent {
570 assert!(updates.update_fulfill_htlcs.is_empty());
571 assert!(updates.update_fail_htlcs.is_empty());
572 assert!(updates.update_fail_malformed_htlcs.is_empty());
573 assert!(updates.update_fee.is_none());
574 SendEvent { node_id: node_id, msgs: updates.update_add_htlcs, commitment_msg: updates.commitment_signed }
577 pub fn from_event(event: MessageSendEvent) -> SendEvent {
579 MessageSendEvent::UpdateHTLCs { node_id, updates } => SendEvent::from_commitment_update(node_id, updates),
580 _ => panic!("Unexpected event type!"),
584 pub fn from_node<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>) -> SendEvent {
585 let mut events = node.node.get_and_clear_pending_msg_events();
586 assert_eq!(events.len(), 1);
587 SendEvent::from_event(events.pop().unwrap())
591 macro_rules! check_added_monitors {
592 ($node: expr, $count: expr) => {
594 let mut added_monitors = $node.chan_monitor.added_monitors.lock().unwrap();
595 assert_eq!(added_monitors.len(), $count);
596 added_monitors.clear();
601 macro_rules! commitment_signed_dance {
602 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr, true /* skip last step */) => {
604 check_added_monitors!($node_a, 0);
605 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
606 $node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed);
607 check_added_monitors!($node_a, 1);
608 commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, false);
611 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, true /* return extra message */, true /* return last RAA */) => {
613 let (as_revoke_and_ack, as_commitment_signed) = get_revoke_commit_msgs!($node_a, $node_b.node.get_our_node_id());
614 check_added_monitors!($node_b, 0);
615 assert!($node_b.node.get_and_clear_pending_msg_events().is_empty());
616 $node_b.node.handle_revoke_and_ack(&$node_a.node.get_our_node_id(), &as_revoke_and_ack);
617 assert!($node_b.node.get_and_clear_pending_msg_events().is_empty());
618 check_added_monitors!($node_b, 1);
619 $node_b.node.handle_commitment_signed(&$node_a.node.get_our_node_id(), &as_commitment_signed);
620 let (bs_revoke_and_ack, extra_msg_option) = {
621 let events = $node_b.node.get_and_clear_pending_msg_events();
622 assert!(events.len() <= 2);
624 MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
625 assert_eq!(*node_id, $node_a.node.get_our_node_id());
628 _ => panic!("Unexpected event"),
629 }, events.get(1).map(|e| e.clone()))
631 check_added_monitors!($node_b, 1);
633 assert!($node_a.node.get_and_clear_pending_events().is_empty());
634 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
636 (extra_msg_option, bs_revoke_and_ack)
639 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr, true /* skip last step */, false /* return extra message */, true /* return last RAA */) => {
641 check_added_monitors!($node_a, 0);
642 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
643 $node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed);
644 check_added_monitors!($node_a, 1);
645 let (extra_msg_option, bs_revoke_and_ack) = commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true, true);
646 assert!(extra_msg_option.is_none());
650 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, true /* return extra message */) => {
652 let (extra_msg_option, bs_revoke_and_ack) = commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true, true);
653 $node_a.node.handle_revoke_and_ack(&$node_b.node.get_our_node_id(), &bs_revoke_and_ack);
654 check_added_monitors!($node_a, 1);
658 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, false /* no extra message */) => {
660 assert!(commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true).is_none());
663 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr) => {
665 commitment_signed_dance!($node_a, $node_b, $commitment_signed, $fail_backwards, true);
667 expect_pending_htlcs_forwardable!($node_a);
668 check_added_monitors!($node_a, 1);
670 let channel_state = $node_a.node.channel_state.lock().unwrap();
671 assert_eq!(channel_state.pending_msg_events.len(), 1);
672 if let MessageSendEvent::UpdateHTLCs { ref node_id, .. } = channel_state.pending_msg_events[0] {
673 assert_ne!(*node_id, $node_b.node.get_our_node_id());
674 } else { panic!("Unexpected event"); }
676 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
682 macro_rules! get_payment_preimage_hash {
685 let payment_preimage = PaymentPreimage([*$node.network_payment_count.borrow(); 32]);
686 *$node.network_payment_count.borrow_mut() += 1;
687 let payment_hash = PaymentHash(Sha256::hash(&payment_preimage.0[..]).into_inner());
688 (payment_preimage, payment_hash)
693 macro_rules! expect_pending_htlcs_forwardable {
695 let events = $node.node.get_and_clear_pending_events();
696 assert_eq!(events.len(), 1);
698 Event::PendingHTLCsForwardable { .. } => { },
699 _ => panic!("Unexpected event"),
701 $node.node.process_pending_htlc_forwards();
705 macro_rules! expect_payment_received {
706 ($node: expr, $expected_payment_hash: expr, $expected_recv_value: expr) => {
707 let events = $node.node.get_and_clear_pending_events();
708 assert_eq!(events.len(), 1);
710 Event::PaymentReceived { ref payment_hash, amt } => {
711 assert_eq!($expected_payment_hash, *payment_hash);
712 assert_eq!($expected_recv_value, amt);
714 _ => panic!("Unexpected event"),
719 macro_rules! expect_payment_sent {
720 ($node: expr, $expected_payment_preimage: expr) => {
721 let events = $node.node.get_and_clear_pending_events();
722 assert_eq!(events.len(), 1);
724 Event::PaymentSent { ref payment_preimage } => {
725 assert_eq!($expected_payment_preimage, *payment_preimage);
727 _ => panic!("Unexpected event"),
732 macro_rules! expect_payment_failed {
733 ($node: expr, $expected_payment_hash: expr, $rejected_by_dest: expr) => {
734 let events = $node.node.get_and_clear_pending_events();
735 assert_eq!(events.len(), 1);
737 Event::PaymentFailed { ref payment_hash, rejected_by_dest, .. } => {
738 assert_eq!(*payment_hash, $expected_payment_hash);
739 assert_eq!(rejected_by_dest, $rejected_by_dest);
741 _ => panic!("Unexpected event"),
746 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) {
747 let mut payment_event = {
748 origin_node.node.send_payment(route, our_payment_hash).unwrap();
749 check_added_monitors!(origin_node, 1);
751 let mut events = origin_node.node.get_and_clear_pending_msg_events();
752 assert_eq!(events.len(), 1);
753 SendEvent::from_event(events.remove(0))
755 let mut prev_node = origin_node;
757 for (idx, &node) in expected_route.iter().enumerate() {
758 assert_eq!(node.node.get_our_node_id(), payment_event.node_id);
760 node.node.handle_update_add_htlc(&prev_node.node.get_our_node_id(), &payment_event.msgs[0]);
761 check_added_monitors!(node, 0);
762 commitment_signed_dance!(node, prev_node, payment_event.commitment_msg, false);
764 expect_pending_htlcs_forwardable!(node);
766 if idx == expected_route.len() - 1 {
767 let events_2 = node.node.get_and_clear_pending_events();
768 assert_eq!(events_2.len(), 1);
770 Event::PaymentReceived { ref payment_hash, amt } => {
771 assert_eq!(our_payment_hash, *payment_hash);
772 assert_eq!(amt, recv_value);
774 _ => panic!("Unexpected event"),
777 let mut events_2 = node.node.get_and_clear_pending_msg_events();
778 assert_eq!(events_2.len(), 1);
779 check_added_monitors!(node, 1);
780 payment_event = SendEvent::from_event(events_2.remove(0));
781 assert_eq!(payment_event.msgs.len(), 1);
788 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) {
789 let (our_payment_preimage, our_payment_hash) = get_payment_preimage_hash!(origin_node);
790 send_along_route_with_hash(origin_node, route, expected_route, recv_value, our_payment_hash);
791 (our_payment_preimage, our_payment_hash)
794 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) {
795 assert!(expected_route.last().unwrap().node.claim_funds(our_payment_preimage, expected_amount));
796 check_added_monitors!(expected_route.last().unwrap(), 1);
798 let mut next_msgs: Option<(msgs::UpdateFulfillHTLC, msgs::CommitmentSigned)> = None;
799 let mut expected_next_node = expected_route.last().unwrap().node.get_our_node_id();
800 macro_rules! get_next_msgs {
803 let events = $node.node.get_and_clear_pending_msg_events();
804 assert_eq!(events.len(), 1);
806 MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, ref update_fee, ref commitment_signed } } => {
807 assert!(update_add_htlcs.is_empty());
808 assert_eq!(update_fulfill_htlcs.len(), 1);
809 assert!(update_fail_htlcs.is_empty());
810 assert!(update_fail_malformed_htlcs.is_empty());
811 assert!(update_fee.is_none());
812 expected_next_node = node_id.clone();
813 Some((update_fulfill_htlcs[0].clone(), commitment_signed.clone()))
815 _ => panic!("Unexpected event"),
821 macro_rules! last_update_fulfill_dance {
822 ($node: expr, $prev_node: expr) => {
824 $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
825 check_added_monitors!($node, 0);
826 assert!($node.node.get_and_clear_pending_msg_events().is_empty());
827 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, false);
831 macro_rules! mid_update_fulfill_dance {
832 ($node: expr, $prev_node: expr, $new_msgs: expr) => {
834 $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
835 check_added_monitors!($node, 1);
836 let new_next_msgs = if $new_msgs {
837 get_next_msgs!($node)
839 assert!($node.node.get_and_clear_pending_msg_events().is_empty());
842 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, false);
843 next_msgs = new_next_msgs;
848 let mut prev_node = expected_route.last().unwrap();
849 for (idx, node) in expected_route.iter().rev().enumerate() {
850 assert_eq!(expected_next_node, node.node.get_our_node_id());
851 let update_next_msgs = !skip_last || idx != expected_route.len() - 1;
852 if next_msgs.is_some() {
853 mid_update_fulfill_dance!(node, prev_node, update_next_msgs);
854 } else if update_next_msgs {
855 next_msgs = get_next_msgs!(node);
857 assert!(node.node.get_and_clear_pending_msg_events().is_empty());
859 if !skip_last && idx == expected_route.len() - 1 {
860 assert_eq!(expected_next_node, origin_node.node.get_our_node_id());
867 last_update_fulfill_dance!(origin_node, expected_route.first().unwrap());
868 expect_payment_sent!(origin_node, our_payment_preimage);
872 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) {
873 claim_payment_along_route(origin_node, expected_route, false, our_payment_preimage, expected_amount);
876 pub const TEST_FINAL_CLTV: u32 = 32;
878 pub fn route_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) -> (PaymentPreimage, PaymentHash) {
879 let route = origin_node.router.get_route(&expected_route.last().unwrap().node.get_our_node_id(), None, &Vec::new(), recv_value, TEST_FINAL_CLTV).unwrap();
880 assert_eq!(route.hops.len(), expected_route.len());
881 for (node, hop) in expected_route.iter().zip(route.hops.iter()) {
882 assert_eq!(hop.pubkey, node.node.get_our_node_id());
885 send_along_route(origin_node, route, expected_route, recv_value)
888 pub fn route_over_limit<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) {
889 let route = origin_node.router.get_route(&expected_route.last().unwrap().node.get_our_node_id(), None, &Vec::new(), recv_value, TEST_FINAL_CLTV).unwrap();
890 assert_eq!(route.hops.len(), expected_route.len());
891 for (node, hop) in expected_route.iter().zip(route.hops.iter()) {
892 assert_eq!(hop.pubkey, node.node.get_our_node_id());
895 let (_, our_payment_hash) = get_payment_preimage_hash!(origin_node);
897 let err = origin_node.node.send_payment(route, our_payment_hash).err().unwrap();
899 APIError::ChannelUnavailable{err} => assert_eq!(err, "Cannot send value that would put us over the max HTLC value in flight our peer will accept"),
900 _ => panic!("Unknown error variants"),
904 pub fn send_payment<'a, 'b, 'c>(origin: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64, expected_value: u64) {
905 let our_payment_preimage = route_payment(&origin, expected_route, recv_value).0;
906 claim_payment(&origin, expected_route, our_payment_preimage, expected_value);
909 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) {
910 assert!(expected_route.last().unwrap().node.fail_htlc_backwards(&our_payment_hash));
911 expect_pending_htlcs_forwardable!(expected_route.last().unwrap());
912 check_added_monitors!(expected_route.last().unwrap(), 1);
914 let mut next_msgs: Option<(msgs::UpdateFailHTLC, msgs::CommitmentSigned)> = None;
915 macro_rules! update_fail_dance {
916 ($node: expr, $prev_node: expr, $last_node: expr) => {
918 $node.node.handle_update_fail_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
919 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, !$last_node);
920 if skip_last && $last_node {
921 expect_pending_htlcs_forwardable!($node);
927 let mut expected_next_node = expected_route.last().unwrap().node.get_our_node_id();
928 let mut prev_node = expected_route.last().unwrap();
929 for (idx, node) in expected_route.iter().rev().enumerate() {
930 assert_eq!(expected_next_node, node.node.get_our_node_id());
931 if next_msgs.is_some() {
932 // We may be the "last node" for the purpose of the commitment dance if we're
933 // skipping the last node (implying it is disconnected) and we're the
934 // second-to-last node!
935 update_fail_dance!(node, prev_node, skip_last && idx == expected_route.len() - 1);
938 let events = node.node.get_and_clear_pending_msg_events();
939 if !skip_last || idx != expected_route.len() - 1 {
940 assert_eq!(events.len(), 1);
942 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 } } => {
943 assert!(update_add_htlcs.is_empty());
944 assert!(update_fulfill_htlcs.is_empty());
945 assert_eq!(update_fail_htlcs.len(), 1);
946 assert!(update_fail_malformed_htlcs.is_empty());
947 assert!(update_fee.is_none());
948 expected_next_node = node_id.clone();
949 next_msgs = Some((update_fail_htlcs[0].clone(), commitment_signed.clone()));
951 _ => panic!("Unexpected event"),
954 assert!(events.is_empty());
956 if !skip_last && idx == expected_route.len() - 1 {
957 assert_eq!(expected_next_node, origin_node.node.get_our_node_id());
964 update_fail_dance!(origin_node, expected_route.first().unwrap(), true);
966 let events = origin_node.node.get_and_clear_pending_events();
967 assert_eq!(events.len(), 1);
969 Event::PaymentFailed { payment_hash, rejected_by_dest, .. } => {
970 assert_eq!(payment_hash, our_payment_hash);
971 assert!(rejected_by_dest);
973 _ => panic!("Unexpected event"),
978 pub fn fail_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], our_payment_hash: PaymentHash) {
979 fail_payment_along_route(origin_node, expected_route, false, our_payment_hash);
982 pub fn create_chanmon_cfgs(node_count: usize) -> Vec<TestChanMonCfg> {
983 let mut chan_mon_cfgs = Vec::new();
984 for _ in 0..node_count {
985 let tx_broadcaster = test_utils::TestBroadcaster{txn_broadcasted: Mutex::new(Vec::new())};
986 let fee_estimator = test_utils::TestFeeEstimator { sat_per_kw: 253 };
987 chan_mon_cfgs.push(TestChanMonCfg{ tx_broadcaster, fee_estimator });
993 pub fn create_node_cfgs<'a>(node_count: usize, chanmon_cfgs: &'a Vec<TestChanMonCfg>) -> Vec<NodeCfg<'a>> {
994 let mut nodes = Vec::new();
995 let mut rng = thread_rng();
997 for i in 0..node_count {
998 let logger = Arc::new(test_utils::TestLogger::with_id(format!("node {}", i)));
999 let chain_monitor = Arc::new(chaininterface::ChainWatchInterfaceUtil::new(Network::Testnet, logger.clone() as Arc<Logger>));
1000 let mut seed = [0; 32];
1001 rng.fill_bytes(&mut seed);
1002 let keys_manager = test_utils::TestKeysInterface::new(&seed, Network::Testnet, logger.clone() as Arc<Logger>);
1003 let chan_monitor = test_utils::TestChannelMonitor::new(chain_monitor.clone(), &chanmon_cfgs[i].tx_broadcaster, logger.clone(), &chanmon_cfgs[i].fee_estimator);
1004 nodes.push(NodeCfg { chain_monitor, logger, tx_broadcaster: &chanmon_cfgs[i].tx_broadcaster, fee_estimator: &chanmon_cfgs[i].fee_estimator, chan_monitor, keys_manager, node_seed: seed });
1010 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>> {
1011 let mut chanmgrs = Vec::new();
1012 for i in 0..node_count {
1013 let mut default_config = UserConfig::default();
1014 default_config.channel_options.announced_channel = true;
1015 default_config.peer_channel_config_limits.force_announced_channel_preference = false;
1016 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
1017 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();
1018 chanmgrs.push(node);
1024 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>>) -> Vec<Node<'a, 'b, 'c>> {
1025 let secp_ctx = Secp256k1::new();
1026 let mut nodes = Vec::new();
1027 let chan_count = Rc::new(RefCell::new(0));
1028 let payment_count = Rc::new(RefCell::new(0));
1030 for i in 0..node_count {
1031 let block_notifier = chaininterface::BlockNotifier::new(cfgs[i].chain_monitor.clone());
1032 block_notifier.register_listener(&cfgs[i].chan_monitor.simple_monitor as &chaininterface::ChainListener);
1033 block_notifier.register_listener(&chan_mgrs[i] as &chaininterface::ChainListener);
1034 let router = Router::new(PublicKey::from_secret_key(&secp_ctx, &cfgs[i].keys_manager.get_node_secret()), cfgs[i].chain_monitor.clone(), cfgs[i].logger.clone() as Arc<Logger>);
1035 nodes.push(Node{ chain_monitor: cfgs[i].chain_monitor.clone(), block_notifier,
1036 tx_broadcaster: cfgs[i].tx_broadcaster, chan_monitor: &cfgs[i].chan_monitor,
1037 keys_manager: &cfgs[i].keys_manager, node: &chan_mgrs[i], router,
1038 node_seed: cfgs[i].node_seed, network_chan_count: chan_count.clone(),
1039 network_payment_count: payment_count.clone(), logger: cfgs[i].logger.clone(),
1046 pub const ACCEPTED_HTLC_SCRIPT_WEIGHT: usize = 138; //Here we have a diff due to HTLC CLTV expiry being < 2^15 in test
1047 pub const OFFERED_HTLC_SCRIPT_WEIGHT: usize = 133;
1049 #[derive(PartialEq)]
1050 pub enum HTLCType { NONE, TIMEOUT, SUCCESS }
1051 /// Tests that the given node has broadcast transactions for the given Channel
1053 /// First checks that the latest local commitment tx has been broadcast, unless an explicit
1054 /// commitment_tx is provided, which may be used to test that a remote commitment tx was
1055 /// broadcast and the revoked outputs were claimed.
1057 /// Next tests that there is (or is not) a transaction that spends the commitment transaction
1058 /// that appears to be the type of HTLC transaction specified in has_htlc_tx.
1060 /// All broadcast transactions must be accounted for in one of the above three types of we'll
1062 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> {
1063 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
1064 assert!(node_txn.len() >= if commitment_tx.is_some() { 0 } else { 1 } + if has_htlc_tx == HTLCType::NONE { 0 } else { 1 });
1066 let mut res = Vec::with_capacity(2);
1067 node_txn.retain(|tx| {
1068 if tx.input.len() == 1 && tx.input[0].previous_output.txid == chan.3.txid() {
1069 check_spends!(tx, chan.3);
1070 if commitment_tx.is_none() {
1071 res.push(tx.clone());
1076 if let Some(explicit_tx) = commitment_tx {
1077 res.push(explicit_tx.clone());
1080 assert_eq!(res.len(), 1);
1082 if has_htlc_tx != HTLCType::NONE {
1083 node_txn.retain(|tx| {
1084 if tx.input.len() == 1 && tx.input[0].previous_output.txid == res[0].txid() {
1085 check_spends!(tx, res[0]);
1086 if has_htlc_tx == HTLCType::TIMEOUT {
1087 assert!(tx.lock_time != 0);
1089 assert!(tx.lock_time == 0);
1091 res.push(tx.clone());
1095 assert!(res.len() == 2 || res.len() == 3);
1097 assert_eq!(res[1], res[2]);
1101 assert!(node_txn.is_empty());
1105 /// Tests that the given node has broadcast a claim transaction against the provided revoked
1106 /// HTLC transaction.
1107 pub fn test_revoked_htlc_claim_txn_broadcast<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, revoked_tx: Transaction, commitment_revoked_tx: Transaction) {
1108 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
1109 // We may issue multiple claiming transaction on revoked outputs due to block rescan
1110 // for revoked htlc outputs
1111 if node_txn.len() != 1 && node_txn.len() != 2 && node_txn.len() != 3 { assert!(false); }
1112 node_txn.retain(|tx| {
1113 if tx.input.len() == 1 && tx.input[0].previous_output.txid == revoked_tx.txid() {
1114 check_spends!(tx, revoked_tx);
1118 node_txn.retain(|tx| {
1119 check_spends!(tx, commitment_revoked_tx);
1122 assert!(node_txn.is_empty());
1125 pub fn check_preimage_claim<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, prev_txn: &Vec<Transaction>) -> Vec<Transaction> {
1126 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
1128 assert!(node_txn.len() >= 1);
1129 assert_eq!(node_txn[0].input.len(), 1);
1130 let mut found_prev = false;
1132 for tx in prev_txn {
1133 if node_txn[0].input[0].previous_output.txid == tx.txid() {
1134 check_spends!(node_txn[0], tx);
1135 assert!(node_txn[0].input[0].witness[2].len() > 106); // must spend an htlc output
1136 assert_eq!(tx.input.len(), 1); // must spend a commitment tx
1142 assert!(found_prev);
1144 let mut res = Vec::new();
1145 mem::swap(&mut *node_txn, &mut res);
1149 pub fn get_announce_close_broadcast_events<'a, 'b, 'c>(nodes: &Vec<Node<'a, 'b, 'c>>, a: usize, b: usize) {
1150 let events_1 = nodes[a].node.get_and_clear_pending_msg_events();
1151 assert_eq!(events_1.len(), 1);
1152 let as_update = match events_1[0] {
1153 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
1156 _ => panic!("Unexpected event"),
1159 let events_2 = nodes[b].node.get_and_clear_pending_msg_events();
1160 assert_eq!(events_2.len(), 1);
1161 let bs_update = match events_2[0] {
1162 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
1165 _ => panic!("Unexpected event"),
1169 node.router.handle_channel_update(&as_update).unwrap();
1170 node.router.handle_channel_update(&bs_update).unwrap();
1174 macro_rules! get_channel_value_stat {
1175 ($node: expr, $channel_id: expr) => {{
1176 let chan_lock = $node.node.channel_state.lock().unwrap();
1177 let chan = chan_lock.by_id.get(&$channel_id).unwrap();
1178 chan.get_value_stat()
1182 macro_rules! get_chan_reestablish_msgs {
1183 ($src_node: expr, $dst_node: expr) => {
1185 let mut res = Vec::with_capacity(1);
1186 for msg in $src_node.node.get_and_clear_pending_msg_events() {
1187 if let MessageSendEvent::SendChannelReestablish { ref node_id, ref msg } = msg {
1188 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1189 res.push(msg.clone());
1191 panic!("Unexpected event")
1199 macro_rules! handle_chan_reestablish_msgs {
1200 ($src_node: expr, $dst_node: expr) => {
1202 let msg_events = $src_node.node.get_and_clear_pending_msg_events();
1204 let funding_locked = if let Some(&MessageSendEvent::SendFundingLocked { ref node_id, ref msg }) = msg_events.get(0) {
1206 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1212 let mut revoke_and_ack = None;
1213 let mut commitment_update = None;
1214 let order = if let Some(ev) = msg_events.get(idx) {
1217 &MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
1218 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1219 revoke_and_ack = Some(msg.clone());
1220 RAACommitmentOrder::RevokeAndACKFirst
1222 &MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
1223 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1224 commitment_update = Some(updates.clone());
1225 RAACommitmentOrder::CommitmentFirst
1227 _ => panic!("Unexpected event"),
1230 RAACommitmentOrder::CommitmentFirst
1233 if let Some(ev) = msg_events.get(idx) {
1235 &MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
1236 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1237 assert!(revoke_and_ack.is_none());
1238 revoke_and_ack = Some(msg.clone());
1240 &MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
1241 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
1242 assert!(commitment_update.is_none());
1243 commitment_update = Some(updates.clone());
1245 _ => panic!("Unexpected event"),
1249 (funding_locked, revoke_and_ack, commitment_update, order)
1254 /// pending_htlc_adds includes both the holding cell and in-flight update_add_htlcs, whereas
1255 /// for claims/fails they are separated out.
1256 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)) {
1257 node_a.node.peer_connected(&node_b.node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1258 let reestablish_1 = get_chan_reestablish_msgs!(node_a, node_b);
1259 node_b.node.peer_connected(&node_a.node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
1260 let reestablish_2 = get_chan_reestablish_msgs!(node_b, node_a);
1262 if send_funding_locked.0 {
1263 // If a expects a funding_locked, it better not think it has received a revoke_and_ack
1265 for reestablish in reestablish_1.iter() {
1266 assert_eq!(reestablish.next_remote_commitment_number, 0);
1269 if send_funding_locked.1 {
1270 // If b expects a funding_locked, it better not think it has received a revoke_and_ack
1272 for reestablish in reestablish_2.iter() {
1273 assert_eq!(reestablish.next_remote_commitment_number, 0);
1276 if send_funding_locked.0 || send_funding_locked.1 {
1277 // If we expect any funding_locked's, both sides better have set
1278 // next_local_commitment_number to 1
1279 for reestablish in reestablish_1.iter() {
1280 assert_eq!(reestablish.next_local_commitment_number, 1);
1282 for reestablish in reestablish_2.iter() {
1283 assert_eq!(reestablish.next_local_commitment_number, 1);
1287 let mut resp_1 = Vec::new();
1288 for msg in reestablish_1 {
1289 node_b.node.handle_channel_reestablish(&node_a.node.get_our_node_id(), &msg);
1290 resp_1.push(handle_chan_reestablish_msgs!(node_b, node_a));
1292 if pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 {
1293 check_added_monitors!(node_b, 1);
1295 check_added_monitors!(node_b, 0);
1298 let mut resp_2 = Vec::new();
1299 for msg in reestablish_2 {
1300 node_a.node.handle_channel_reestablish(&node_b.node.get_our_node_id(), &msg);
1301 resp_2.push(handle_chan_reestablish_msgs!(node_a, node_b));
1303 if pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 {
1304 check_added_monitors!(node_a, 1);
1306 check_added_monitors!(node_a, 0);
1309 // We don't yet support both needing updates, as that would require a different commitment dance:
1310 assert!((pending_htlc_adds.0 == 0 && pending_htlc_claims.0 == 0 && pending_cell_htlc_claims.0 == 0 && pending_cell_htlc_fails.0 == 0) ||
1311 (pending_htlc_adds.1 == 0 && pending_htlc_claims.1 == 0 && pending_cell_htlc_claims.1 == 0 && pending_cell_htlc_fails.1 == 0));
1313 for chan_msgs in resp_1.drain(..) {
1314 if send_funding_locked.0 {
1315 node_a.node.handle_funding_locked(&node_b.node.get_our_node_id(), &chan_msgs.0.unwrap());
1316 let announcement_event = node_a.node.get_and_clear_pending_msg_events();
1317 if !announcement_event.is_empty() {
1318 assert_eq!(announcement_event.len(), 1);
1319 if let MessageSendEvent::SendAnnouncementSignatures { .. } = announcement_event[0] {
1320 //TODO: Test announcement_sigs re-sending
1321 } else { panic!("Unexpected event!"); }
1324 assert!(chan_msgs.0.is_none());
1327 assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst);
1328 node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &chan_msgs.1.unwrap());
1329 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
1330 check_added_monitors!(node_a, 1);
1332 assert!(chan_msgs.1.is_none());
1334 if pending_htlc_adds.0 != 0 || pending_htlc_claims.0 != 0 || pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 {
1335 let commitment_update = chan_msgs.2.unwrap();
1336 if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed
1337 assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.0 as usize);
1339 assert!(commitment_update.update_add_htlcs.is_empty());
1341 assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.0 + pending_cell_htlc_claims.0);
1342 assert_eq!(commitment_update.update_fail_htlcs.len(), pending_cell_htlc_fails.0);
1343 assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
1344 for update_add in commitment_update.update_add_htlcs {
1345 node_a.node.handle_update_add_htlc(&node_b.node.get_our_node_id(), &update_add);
1347 for update_fulfill in commitment_update.update_fulfill_htlcs {
1348 node_a.node.handle_update_fulfill_htlc(&node_b.node.get_our_node_id(), &update_fulfill);
1350 for update_fail in commitment_update.update_fail_htlcs {
1351 node_a.node.handle_update_fail_htlc(&node_b.node.get_our_node_id(), &update_fail);
1354 if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed
1355 commitment_signed_dance!(node_a, node_b, commitment_update.commitment_signed, false);
1357 node_a.node.handle_commitment_signed(&node_b.node.get_our_node_id(), &commitment_update.commitment_signed);
1358 check_added_monitors!(node_a, 1);
1359 let as_revoke_and_ack = get_event_msg!(node_a, MessageSendEvent::SendRevokeAndACK, node_b.node.get_our_node_id());
1360 // No commitment_signed so get_event_msg's assert(len == 1) passes
1361 node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &as_revoke_and_ack);
1362 assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
1363 check_added_monitors!(node_b, 1);
1366 assert!(chan_msgs.2.is_none());
1370 for chan_msgs in resp_2.drain(..) {
1371 if send_funding_locked.1 {
1372 node_b.node.handle_funding_locked(&node_a.node.get_our_node_id(), &chan_msgs.0.unwrap());
1373 let announcement_event = node_b.node.get_and_clear_pending_msg_events();
1374 if !announcement_event.is_empty() {
1375 assert_eq!(announcement_event.len(), 1);
1376 if let MessageSendEvent::SendAnnouncementSignatures { .. } = announcement_event[0] {
1377 //TODO: Test announcement_sigs re-sending
1378 } else { panic!("Unexpected event!"); }
1381 assert!(chan_msgs.0.is_none());
1384 assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst);
1385 node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &chan_msgs.1.unwrap());
1386 assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
1387 check_added_monitors!(node_b, 1);
1389 assert!(chan_msgs.1.is_none());
1391 if pending_htlc_adds.1 != 0 || pending_htlc_claims.1 != 0 || pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 {
1392 let commitment_update = chan_msgs.2.unwrap();
1393 if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed
1394 assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.1 as usize);
1396 assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.0 + pending_cell_htlc_claims.0);
1397 assert_eq!(commitment_update.update_fail_htlcs.len(), pending_cell_htlc_fails.0);
1398 assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
1399 for update_add in commitment_update.update_add_htlcs {
1400 node_b.node.handle_update_add_htlc(&node_a.node.get_our_node_id(), &update_add);
1402 for update_fulfill in commitment_update.update_fulfill_htlcs {
1403 node_b.node.handle_update_fulfill_htlc(&node_a.node.get_our_node_id(), &update_fulfill);
1405 for update_fail in commitment_update.update_fail_htlcs {
1406 node_b.node.handle_update_fail_htlc(&node_a.node.get_our_node_id(), &update_fail);
1409 if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed
1410 commitment_signed_dance!(node_b, node_a, commitment_update.commitment_signed, false);
1412 node_b.node.handle_commitment_signed(&node_a.node.get_our_node_id(), &commitment_update.commitment_signed);
1413 check_added_monitors!(node_b, 1);
1414 let bs_revoke_and_ack = get_event_msg!(node_b, MessageSendEvent::SendRevokeAndACK, node_a.node.get_our_node_id());
1415 // No commitment_signed so get_event_msg's assert(len == 1) passes
1416 node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &bs_revoke_and_ack);
1417 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
1418 check_added_monitors!(node_a, 1);
1421 assert!(chan_msgs.2.is_none());