1 // This file is Copyright its original authors, visible in version control
4 // This file is licensed under the Apache License, Version 2.0 <LICENSE-APACHE
5 // or http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
6 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your option.
7 // You may not use this file except in accordance with one or both of these
10 //! A bunch of useful utilities for building networks of nodes and exchanging messages between
11 //! nodes for functional tests.
13 use crate::chain::{BestBlock, ChannelMonitorUpdateStatus, Confirm, Listen, Watch};
14 use crate::sign::EntropySource;
15 use crate::chain::channelmonitor::ChannelMonitor;
16 use crate::chain::transaction::OutPoint;
17 use crate::events::{ClosureReason, Event, HTLCDestination, MessageSendEvent, MessageSendEventsProvider, PathFailure, PaymentPurpose, PaymentFailureReason};
18 use crate::events::bump_transaction::{BumpTransactionEventHandler, Wallet, WalletSource};
19 use crate::ln::{PaymentPreimage, PaymentHash, PaymentSecret};
20 use crate::ln::channelmanager::{AChannelManager, ChainParameters, ChannelManager, ChannelManagerReadArgs, RAACommitmentOrder, PaymentSendFailure, RecipientOnionFields, PaymentId, MIN_CLTV_EXPIRY_DELTA};
21 use crate::routing::gossip::{P2PGossipSync, NetworkGraph, NetworkUpdate};
22 use crate::routing::router::{self, PaymentParameters, Route};
23 use crate::ln::features::InitFeatures;
25 use crate::ln::msgs::{ChannelMessageHandler,RoutingMessageHandler};
26 use crate::util::enforcing_trait_impls::EnforcingSigner;
27 use crate::util::scid_utils;
28 use crate::util::test_utils;
29 use crate::util::test_utils::{panicking, TestChainMonitor, TestScorer, TestKeysInterface};
30 use crate::util::errors::APIError;
31 use crate::util::config::{UserConfig, MaxDustHTLCExposure};
32 use crate::util::ser::{ReadableArgs, Writeable};
34 use bitcoin::blockdata::block::{Block, BlockHeader};
35 use bitcoin::blockdata::transaction::{Transaction, TxOut};
36 use bitcoin::hash_types::BlockHash;
37 use bitcoin::hashes::sha256::Hash as Sha256;
38 use bitcoin::hashes::Hash as _;
39 use bitcoin::network::constants::Network;
40 use bitcoin::secp256k1::{PublicKey, SecretKey};
43 use crate::prelude::*;
44 use core::cell::RefCell;
46 use crate::sync::{Arc, Mutex, LockTestExt};
48 use core::iter::repeat;
49 use bitcoin::{PackedLockTime, TxMerkleNode};
51 pub const CHAN_CONFIRM_DEPTH: u32 = 10;
53 /// Mine the given transaction in the next block and then mine CHAN_CONFIRM_DEPTH - 1 blocks on
54 /// top, giving the given transaction CHAN_CONFIRM_DEPTH confirmations.
56 /// Returns the SCID a channel confirmed in the given transaction will have, assuming the funding
57 /// output is the 1st output in the transaction.
58 pub fn confirm_transaction<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, tx: &Transaction) -> u64 {
59 let scid = confirm_transaction_at(node, tx, node.best_block_info().1 + 1);
60 connect_blocks(node, CHAN_CONFIRM_DEPTH - 1);
63 /// Mine a single block containing the given transaction
65 /// Returns the SCID a channel confirmed in the given transaction will have, assuming the funding
66 /// output is the 1st output in the transaction.
67 pub fn mine_transaction<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, tx: &Transaction) -> u64 {
68 let height = node.best_block_info().1 + 1;
69 confirm_transaction_at(node, tx, height)
71 /// Mine a single block containing the given transactions
72 pub fn mine_transactions<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, txn: &[&Transaction]) {
73 let height = node.best_block_info().1 + 1;
74 confirm_transactions_at(node, txn, height);
76 /// Mine the given transaction at the given height, mining blocks as required to build to that
79 /// Returns the SCID a channel confirmed in the given transaction will have, assuming the funding
80 /// output is the 1st output in the transaction.
81 pub fn confirm_transactions_at<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, txn: &[&Transaction], conf_height: u32) -> u64 {
82 let first_connect_height = node.best_block_info().1 + 1;
83 assert!(first_connect_height <= conf_height);
84 if conf_height > first_connect_height {
85 connect_blocks(node, conf_height - first_connect_height);
87 let mut txdata = Vec::new();
88 for _ in 0..*node.network_chan_count.borrow() { // Make sure we don't end up with channels at the same short id by offsetting by chan_count
89 txdata.push(Transaction { version: 0, lock_time: PackedLockTime::ZERO, input: Vec::new(), output: Vec::new() });
92 txdata.push((*tx).clone());
94 let block = create_dummy_block(node.best_block_hash(), conf_height, txdata);
95 connect_block(node, &block);
96 scid_utils::scid_from_parts(conf_height as u64, block.txdata.len() as u64 - 1, 0).unwrap()
98 pub fn confirm_transaction_at<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, tx: &Transaction, conf_height: u32) -> u64 {
99 confirm_transactions_at(node, &[tx], conf_height)
102 /// The possible ways we may notify a ChannelManager of a new block
103 #[derive(Clone, Copy, Debug, PartialEq)]
104 pub enum ConnectStyle {
105 /// Calls `best_block_updated` first, detecting transactions in the block only after receiving
106 /// the header and height information.
108 /// The same as `BestBlockFirst`, however when we have multiple blocks to connect, we only
109 /// make a single `best_block_updated` call.
110 BestBlockFirstSkippingBlocks,
111 /// The same as `BestBlockFirst` when connecting blocks. During disconnection only
112 /// `transaction_unconfirmed` is called.
113 BestBlockFirstReorgsOnlyTip,
114 /// Calls `transactions_confirmed` first, detecting transactions in the block before updating
115 /// the header and height information.
117 /// The same as `TransactionsFirst`, however when we have multiple blocks to connect, we only
118 /// make a single `best_block_updated` call.
119 TransactionsFirstSkippingBlocks,
120 /// The same as `TransactionsFirst`, however when we have multiple blocks to connect, we only
121 /// make a single `best_block_updated` call. Further, we call `transactions_confirmed` multiple
122 /// times to ensure it's idempotent.
123 TransactionsDuplicativelyFirstSkippingBlocks,
124 /// The same as `TransactionsFirst`, however when we have multiple blocks to connect, we only
125 /// make a single `best_block_updated` call. Further, we call `transactions_confirmed` multiple
126 /// times to ensure it's idempotent.
127 HighlyRedundantTransactionsFirstSkippingBlocks,
128 /// The same as `TransactionsFirst` when connecting blocks. During disconnection only
129 /// `transaction_unconfirmed` is called.
130 TransactionsFirstReorgsOnlyTip,
131 /// Provides the full block via the `chain::Listen` interface. In the current code this is
132 /// equivalent to `TransactionsFirst` with some additional assertions.
137 pub fn skips_blocks(&self) -> bool {
139 ConnectStyle::BestBlockFirst => false,
140 ConnectStyle::BestBlockFirstSkippingBlocks => true,
141 ConnectStyle::BestBlockFirstReorgsOnlyTip => true,
142 ConnectStyle::TransactionsFirst => false,
143 ConnectStyle::TransactionsFirstSkippingBlocks => true,
144 ConnectStyle::TransactionsDuplicativelyFirstSkippingBlocks => true,
145 ConnectStyle::HighlyRedundantTransactionsFirstSkippingBlocks => true,
146 ConnectStyle::TransactionsFirstReorgsOnlyTip => true,
147 ConnectStyle::FullBlockViaListen => false,
151 pub fn updates_best_block_first(&self) -> bool {
153 ConnectStyle::BestBlockFirst => true,
154 ConnectStyle::BestBlockFirstSkippingBlocks => true,
155 ConnectStyle::BestBlockFirstReorgsOnlyTip => true,
156 ConnectStyle::TransactionsFirst => false,
157 ConnectStyle::TransactionsFirstSkippingBlocks => false,
158 ConnectStyle::TransactionsDuplicativelyFirstSkippingBlocks => false,
159 ConnectStyle::HighlyRedundantTransactionsFirstSkippingBlocks => false,
160 ConnectStyle::TransactionsFirstReorgsOnlyTip => false,
161 ConnectStyle::FullBlockViaListen => false,
165 fn random_style() -> ConnectStyle {
166 #[cfg(feature = "std")] {
167 use core::hash::{BuildHasher, Hasher};
168 // Get a random value using the only std API to do so - the DefaultHasher
169 let rand_val = std::collections::hash_map::RandomState::new().build_hasher().finish();
170 let res = match rand_val % 9 {
171 0 => ConnectStyle::BestBlockFirst,
172 1 => ConnectStyle::BestBlockFirstSkippingBlocks,
173 2 => ConnectStyle::BestBlockFirstReorgsOnlyTip,
174 3 => ConnectStyle::TransactionsFirst,
175 4 => ConnectStyle::TransactionsFirstSkippingBlocks,
176 5 => ConnectStyle::TransactionsDuplicativelyFirstSkippingBlocks,
177 6 => ConnectStyle::HighlyRedundantTransactionsFirstSkippingBlocks,
178 7 => ConnectStyle::TransactionsFirstReorgsOnlyTip,
179 8 => ConnectStyle::FullBlockViaListen,
182 eprintln!("Using Block Connection Style: {:?}", res);
185 #[cfg(not(feature = "std"))] {
186 ConnectStyle::FullBlockViaListen
191 pub fn create_dummy_header(prev_blockhash: BlockHash, time: u32) -> BlockHeader {
193 version: 0x2000_0000,
195 merkle_root: TxMerkleNode::all_zeros(),
202 pub fn create_dummy_block(prev_blockhash: BlockHash, time: u32, txdata: Vec<Transaction>) -> Block {
203 Block { header: create_dummy_header(prev_blockhash, time), txdata }
206 pub fn connect_blocks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, depth: u32) -> BlockHash {
207 let skip_intermediaries = node.connect_style.borrow().skips_blocks();
209 let height = node.best_block_info().1 + 1;
210 let mut block = create_dummy_block(node.best_block_hash(), height, Vec::new());
213 let prev_blockhash = block.header.block_hash();
214 do_connect_block(node, block, skip_intermediaries);
215 block = create_dummy_block(prev_blockhash, height + i, Vec::new());
217 let hash = block.header.block_hash();
218 do_connect_block(node, block, false);
222 pub fn connect_block<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, block: &Block) {
223 do_connect_block(node, block.clone(), false);
226 fn call_claimable_balances<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>) {
227 // Ensure `get_claimable_balances`' self-tests never panic
228 for funding_outpoint in node.chain_monitor.chain_monitor.list_monitors() {
229 node.chain_monitor.chain_monitor.get_monitor(funding_outpoint).unwrap().get_claimable_balances();
233 fn do_connect_block<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, block: Block, skip_intermediaries: bool) {
234 call_claimable_balances(node);
235 let height = node.best_block_info().1 + 1;
236 #[cfg(feature = "std")] {
237 eprintln!("Connecting block using Block Connection Style: {:?}", *node.connect_style.borrow());
239 // Update the block internally before handing it over to LDK, to ensure our assertions regarding
240 // transaction broadcast are correct.
241 node.blocks.lock().unwrap().push((block.clone(), height));
242 if !skip_intermediaries {
243 let txdata: Vec<_> = block.txdata.iter().enumerate().collect();
244 match *node.connect_style.borrow() {
245 ConnectStyle::BestBlockFirst|ConnectStyle::BestBlockFirstSkippingBlocks|ConnectStyle::BestBlockFirstReorgsOnlyTip => {
246 node.chain_monitor.chain_monitor.best_block_updated(&block.header, height);
247 call_claimable_balances(node);
248 node.chain_monitor.chain_monitor.transactions_confirmed(&block.header, &txdata, height);
249 node.node.best_block_updated(&block.header, height);
250 node.node.transactions_confirmed(&block.header, &txdata, height);
252 ConnectStyle::TransactionsFirst|ConnectStyle::TransactionsFirstSkippingBlocks|
253 ConnectStyle::TransactionsDuplicativelyFirstSkippingBlocks|ConnectStyle::HighlyRedundantTransactionsFirstSkippingBlocks|
254 ConnectStyle::TransactionsFirstReorgsOnlyTip => {
255 if *node.connect_style.borrow() == ConnectStyle::HighlyRedundantTransactionsFirstSkippingBlocks {
256 let mut connections = Vec::new();
257 for (block, height) in node.blocks.lock().unwrap().iter() {
258 if !block.txdata.is_empty() {
259 // Reconnect all transactions we've ever seen to ensure transaction connection
260 // is *really* idempotent. This is a somewhat likely deployment for some
261 // esplora implementations of chain sync which try to reduce state and
262 // complexity as much as possible.
264 // Sadly we have to clone the block here to maintain lockorder. In the
265 // future we should consider Arc'ing the blocks to avoid this.
266 connections.push((block.clone(), *height));
269 for (old_block, height) in connections {
270 node.chain_monitor.chain_monitor.transactions_confirmed(&old_block.header,
271 &old_block.txdata.iter().enumerate().collect::<Vec<_>>(), height);
274 node.chain_monitor.chain_monitor.transactions_confirmed(&block.header, &txdata, height);
275 if *node.connect_style.borrow() == ConnectStyle::TransactionsDuplicativelyFirstSkippingBlocks {
276 node.chain_monitor.chain_monitor.transactions_confirmed(&block.header, &txdata, height);
278 call_claimable_balances(node);
279 node.chain_monitor.chain_monitor.best_block_updated(&block.header, height);
280 node.node.transactions_confirmed(&block.header, &txdata, height);
281 node.node.best_block_updated(&block.header, height);
283 ConnectStyle::FullBlockViaListen => {
284 node.chain_monitor.chain_monitor.block_connected(&block, height);
285 node.node.block_connected(&block, height);
289 call_claimable_balances(node);
290 node.node.test_process_background_events();
292 for tx in &block.txdata {
293 for input in &tx.input {
294 node.wallet_source.remove_utxo(input.previous_output);
296 let wallet_script = node.wallet_source.get_change_script().unwrap();
297 for (idx, output) in tx.output.iter().enumerate() {
298 if output.script_pubkey == wallet_script {
299 let outpoint = bitcoin::OutPoint { txid: tx.txid(), vout: idx as u32 };
300 node.wallet_source.add_utxo(outpoint, output.value);
306 pub fn disconnect_blocks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, count: u32) {
307 call_claimable_balances(node);
308 #[cfg(feature = "std")] {
309 eprintln!("Disconnecting {} blocks using Block Connection Style: {:?}", count, *node.connect_style.borrow());
312 let orig = node.blocks.lock().unwrap().pop().unwrap();
313 assert!(orig.1 > 0); // Cannot disconnect genesis
314 let prev = node.blocks.lock().unwrap().last().unwrap().clone();
316 match *node.connect_style.borrow() {
317 ConnectStyle::FullBlockViaListen => {
318 node.chain_monitor.chain_monitor.block_disconnected(&orig.0.header, orig.1);
319 Listen::block_disconnected(node.node, &orig.0.header, orig.1);
321 ConnectStyle::BestBlockFirstSkippingBlocks|ConnectStyle::TransactionsFirstSkippingBlocks|
322 ConnectStyle::HighlyRedundantTransactionsFirstSkippingBlocks|ConnectStyle::TransactionsDuplicativelyFirstSkippingBlocks => {
324 node.chain_monitor.chain_monitor.best_block_updated(&prev.0.header, prev.1);
325 node.node.best_block_updated(&prev.0.header, prev.1);
328 ConnectStyle::BestBlockFirstReorgsOnlyTip|ConnectStyle::TransactionsFirstReorgsOnlyTip => {
329 for tx in orig.0.txdata {
330 node.chain_monitor.chain_monitor.transaction_unconfirmed(&tx.txid());
331 node.node.transaction_unconfirmed(&tx.txid());
335 node.chain_monitor.chain_monitor.best_block_updated(&prev.0.header, prev.1);
336 node.node.best_block_updated(&prev.0.header, prev.1);
339 call_claimable_balances(node);
343 pub fn disconnect_all_blocks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>) {
344 let count = node.blocks.lock().unwrap().len() as u32 - 1;
345 disconnect_blocks(node, count);
348 pub struct TestChanMonCfg {
349 pub tx_broadcaster: test_utils::TestBroadcaster,
350 pub fee_estimator: test_utils::TestFeeEstimator,
351 pub chain_source: test_utils::TestChainSource,
352 pub persister: test_utils::TestPersister,
353 pub logger: test_utils::TestLogger,
354 pub keys_manager: test_utils::TestKeysInterface,
355 pub scorer: Mutex<test_utils::TestScorer>,
358 pub struct NodeCfg<'a> {
359 pub chain_source: &'a test_utils::TestChainSource,
360 pub tx_broadcaster: &'a test_utils::TestBroadcaster,
361 pub fee_estimator: &'a test_utils::TestFeeEstimator,
362 pub router: test_utils::TestRouter<'a>,
363 pub chain_monitor: test_utils::TestChainMonitor<'a>,
364 pub keys_manager: &'a test_utils::TestKeysInterface,
365 pub logger: &'a test_utils::TestLogger,
366 pub network_graph: Arc<NetworkGraph<&'a test_utils::TestLogger>>,
367 pub node_seed: [u8; 32],
368 pub override_init_features: Rc<RefCell<Option<InitFeatures>>>,
371 type TestChannelManager<'a, 'b, 'c> = ChannelManager<&'b TestChainMonitor<'c>, &'c test_utils::TestBroadcaster, &'b test_utils::TestKeysInterface, &'b test_utils::TestKeysInterface, &'b test_utils::TestKeysInterface, &'c test_utils::TestFeeEstimator, &'b test_utils::TestRouter<'c>, &'c test_utils::TestLogger>;
373 pub struct Node<'a, 'b: 'a, 'c: 'b> {
374 pub chain_source: &'c test_utils::TestChainSource,
375 pub tx_broadcaster: &'c test_utils::TestBroadcaster,
376 pub fee_estimator: &'c test_utils::TestFeeEstimator,
377 pub router: &'b test_utils::TestRouter<'c>,
378 pub chain_monitor: &'b test_utils::TestChainMonitor<'c>,
379 pub keys_manager: &'b test_utils::TestKeysInterface,
380 pub node: &'a TestChannelManager<'a, 'b, 'c>,
381 pub network_graph: &'a NetworkGraph<&'c test_utils::TestLogger>,
382 pub gossip_sync: P2PGossipSync<&'b NetworkGraph<&'c test_utils::TestLogger>, &'c test_utils::TestChainSource, &'c test_utils::TestLogger>,
383 pub node_seed: [u8; 32],
384 pub network_payment_count: Rc<RefCell<u8>>,
385 pub network_chan_count: Rc<RefCell<u32>>,
386 pub logger: &'c test_utils::TestLogger,
387 pub blocks: Arc<Mutex<Vec<(Block, u32)>>>,
388 pub connect_style: Rc<RefCell<ConnectStyle>>,
389 pub override_init_features: Rc<RefCell<Option<InitFeatures>>>,
390 pub wallet_source: Arc<test_utils::TestWalletSource>,
391 pub bump_tx_handler: BumpTransactionEventHandler<
392 &'c test_utils::TestBroadcaster,
393 Arc<Wallet<Arc<test_utils::TestWalletSource>, &'c test_utils::TestLogger>>,
394 &'b test_utils::TestKeysInterface,
395 &'c test_utils::TestLogger,
398 impl<'a, 'b, 'c> Node<'a, 'b, 'c> {
399 pub fn best_block_hash(&self) -> BlockHash {
400 self.blocks.lock().unwrap().last().unwrap().0.block_hash()
402 pub fn best_block_info(&self) -> (BlockHash, u32) {
403 self.blocks.lock().unwrap().last().map(|(a, b)| (a.block_hash(), *b)).unwrap()
405 pub fn get_block_header(&self, height: u32) -> BlockHeader {
406 self.blocks.lock().unwrap()[height as usize].0.header
410 /// If we need an unsafe pointer to a `Node` (ie to reference it in a thread
411 /// pre-std::thread::scope), this provides that with `Sync`. Note that accessing some of the fields
412 /// in the `Node` are not safe to use (i.e. the ones behind an `Rc`), but that's left to the caller
414 pub struct NodePtr(pub *const Node<'static, 'static, 'static>);
416 pub fn from_node<'a, 'b: 'a, 'c: 'b>(node: &Node<'a, 'b, 'c>) -> Self {
417 Self((node as *const Node<'a, 'b, 'c>).cast())
420 unsafe impl Send for NodePtr {}
421 unsafe impl Sync for NodePtr {}
424 pub trait NodeHolder {
425 type CM: AChannelManager;
426 fn node(&self) -> &ChannelManager<
427 <Self::CM as AChannelManager>::M,
428 <Self::CM as AChannelManager>::T,
429 <Self::CM as AChannelManager>::ES,
430 <Self::CM as AChannelManager>::NS,
431 <Self::CM as AChannelManager>::SP,
432 <Self::CM as AChannelManager>::F,
433 <Self::CM as AChannelManager>::R,
434 <Self::CM as AChannelManager>::L>;
435 fn chain_monitor(&self) -> Option<&test_utils::TestChainMonitor>;
437 impl<H: NodeHolder> NodeHolder for &H {
439 fn node(&self) -> &ChannelManager<
440 <Self::CM as AChannelManager>::M,
441 <Self::CM as AChannelManager>::T,
442 <Self::CM as AChannelManager>::ES,
443 <Self::CM as AChannelManager>::NS,
444 <Self::CM as AChannelManager>::SP,
445 <Self::CM as AChannelManager>::F,
446 <Self::CM as AChannelManager>::R,
447 <Self::CM as AChannelManager>::L> { (*self).node() }
448 fn chain_monitor(&self) -> Option<&test_utils::TestChainMonitor> { (*self).chain_monitor() }
450 impl<'a, 'b: 'a, 'c: 'b> NodeHolder for Node<'a, 'b, 'c> {
451 type CM = TestChannelManager<'a, 'b, 'c>;
452 fn node(&self) -> &TestChannelManager<'a, 'b, 'c> { &self.node }
453 fn chain_monitor(&self) -> Option<&test_utils::TestChainMonitor> { Some(self.chain_monitor) }
456 impl<'a, 'b, 'c> Drop for Node<'a, 'b, 'c> {
459 // Check that we processed all pending events
460 let msg_events = self.node.get_and_clear_pending_msg_events();
461 if !msg_events.is_empty() {
462 panic!("Had excess message events on node {}: {:?}", self.logger.id, msg_events);
464 let events = self.node.get_and_clear_pending_events();
465 if !events.is_empty() {
466 panic!("Had excess events on node {}: {:?}", self.logger.id, events);
468 let added_monitors = self.chain_monitor.added_monitors.lock().unwrap().split_off(0);
469 if !added_monitors.is_empty() {
470 panic!("Had {} excess added monitors on node {}", added_monitors.len(), self.logger.id);
473 // Check that if we serialize the network graph, we can deserialize it again.
474 let network_graph = {
475 let mut w = test_utils::TestVecWriter(Vec::new());
476 self.network_graph.write(&mut w).unwrap();
477 let network_graph_deser = <NetworkGraph<_>>::read(&mut io::Cursor::new(&w.0), self.logger).unwrap();
478 assert!(network_graph_deser == *self.network_graph);
479 let gossip_sync = P2PGossipSync::new(
480 &network_graph_deser, Some(self.chain_source), self.logger
482 let mut chan_progress = 0;
484 let orig_announcements = self.gossip_sync.get_next_channel_announcement(chan_progress);
485 let deserialized_announcements = gossip_sync.get_next_channel_announcement(chan_progress);
486 assert!(orig_announcements == deserialized_announcements);
487 chan_progress = match orig_announcements {
488 Some(announcement) => announcement.0.contents.short_channel_id + 1,
492 let mut node_progress = None;
494 let orig_announcements = self.gossip_sync.get_next_node_announcement(node_progress.as_ref());
495 let deserialized_announcements = gossip_sync.get_next_node_announcement(node_progress.as_ref());
496 assert!(orig_announcements == deserialized_announcements);
497 node_progress = match orig_announcements {
498 Some(announcement) => Some(announcement.contents.node_id),
505 // Check that if we serialize and then deserialize all our channel monitors we get the
506 // same set of outputs to watch for on chain as we have now. Note that if we write
507 // tests that fully close channels and remove the monitors at some point this may break.
508 let feeest = test_utils::TestFeeEstimator { sat_per_kw: Mutex::new(253) };
509 let mut deserialized_monitors = Vec::new();
511 for outpoint in self.chain_monitor.chain_monitor.list_monitors() {
512 let mut w = test_utils::TestVecWriter(Vec::new());
513 self.chain_monitor.chain_monitor.get_monitor(outpoint).unwrap().write(&mut w).unwrap();
514 let (_, deserialized_monitor) = <(BlockHash, ChannelMonitor<EnforcingSigner>)>::read(
515 &mut io::Cursor::new(&w.0), (self.keys_manager, self.keys_manager)).unwrap();
516 deserialized_monitors.push(deserialized_monitor);
520 let broadcaster = test_utils::TestBroadcaster {
521 txn_broadcasted: Mutex::new(self.tx_broadcaster.txn_broadcasted.lock().unwrap().clone()),
522 blocks: Arc::new(Mutex::new(self.tx_broadcaster.blocks.lock().unwrap().clone())),
525 // Before using all the new monitors to check the watch outpoints, use the full set of
526 // them to ensure we can write and reload our ChannelManager.
528 let mut channel_monitors = HashMap::new();
529 for monitor in deserialized_monitors.iter_mut() {
530 channel_monitors.insert(monitor.get_funding_txo().0, monitor);
533 let scorer = Mutex::new(test_utils::TestScorer::new());
534 let mut w = test_utils::TestVecWriter(Vec::new());
535 self.node.write(&mut w).unwrap();
536 <(BlockHash, ChannelManager<&test_utils::TestChainMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestKeysInterface, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestRouter, &test_utils::TestLogger>)>::read(&mut io::Cursor::new(w.0), ChannelManagerReadArgs {
537 default_config: *self.node.get_current_default_configuration(),
538 entropy_source: self.keys_manager,
539 node_signer: self.keys_manager,
540 signer_provider: self.keys_manager,
541 fee_estimator: &test_utils::TestFeeEstimator { sat_per_kw: Mutex::new(253) },
542 router: &test_utils::TestRouter::new(Arc::new(network_graph), &scorer),
543 chain_monitor: self.chain_monitor,
544 tx_broadcaster: &broadcaster,
545 logger: &self.logger,
550 let persister = test_utils::TestPersister::new();
551 let chain_source = test_utils::TestChainSource::new(Network::Testnet);
552 let chain_monitor = test_utils::TestChainMonitor::new(Some(&chain_source), &broadcaster, &self.logger, &feeest, &persister, &self.keys_manager);
553 for deserialized_monitor in deserialized_monitors.drain(..) {
554 if chain_monitor.watch_channel(deserialized_monitor.get_funding_txo().0, deserialized_monitor) != ChannelMonitorUpdateStatus::Completed {
558 assert_eq!(*chain_source.watched_txn.unsafe_well_ordered_double_lock_self(), *self.chain_source.watched_txn.unsafe_well_ordered_double_lock_self());
559 assert_eq!(*chain_source.watched_outputs.unsafe_well_ordered_double_lock_self(), *self.chain_source.watched_outputs.unsafe_well_ordered_double_lock_self());
564 pub fn create_chan_between_nodes<'a, 'b, 'c, 'd>(node_a: &'a Node<'b, 'c, 'd>, node_b: &'a Node<'b, 'c, 'd>) -> (msgs::ChannelAnnouncement, msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
565 create_chan_between_nodes_with_value(node_a, node_b, 100000, 10001)
568 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) -> (msgs::ChannelAnnouncement, msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
569 let (channel_ready, channel_id, tx) = create_chan_between_nodes_with_value_a(node_a, node_b, channel_value, push_msat);
570 let (announcement, as_update, bs_update) = create_chan_between_nodes_with_value_b(node_a, node_b, &channel_ready);
571 (announcement, as_update, bs_update, channel_id, tx)
574 /// Gets an RAA and CS which were sent in response to a commitment update
575 pub fn get_revoke_commit_msgs<CM: AChannelManager, H: NodeHolder<CM=CM>>(node: &H, recipient: &PublicKey) -> (msgs::RevokeAndACK, msgs::CommitmentSigned) {
576 let events = node.node().get_and_clear_pending_msg_events();
577 assert_eq!(events.len(), 2);
579 MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
580 assert_eq!(node_id, recipient);
583 _ => panic!("Unexpected event"),
585 MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
586 assert_eq!(node_id, recipient);
587 assert!(updates.update_add_htlcs.is_empty());
588 assert!(updates.update_fulfill_htlcs.is_empty());
589 assert!(updates.update_fail_htlcs.is_empty());
590 assert!(updates.update_fail_malformed_htlcs.is_empty());
591 assert!(updates.update_fee.is_none());
592 updates.commitment_signed.clone()
594 _ => panic!("Unexpected event"),
599 /// Gets an RAA and CS which were sent in response to a commitment update
601 /// Don't use this, use the identically-named function instead.
602 macro_rules! get_revoke_commit_msgs {
603 ($node: expr, $node_id: expr) => {
604 $crate::ln::functional_test_utils::get_revoke_commit_msgs(&$node, &$node_id)
608 /// Get an specific event message from the pending events queue.
610 macro_rules! get_event_msg {
611 ($node: expr, $event_type: path, $node_id: expr) => {
613 let events = $node.node.get_and_clear_pending_msg_events();
614 assert_eq!(events.len(), 1);
616 $event_type { ref node_id, ref msg } => {
617 assert_eq!(*node_id, $node_id);
620 _ => panic!("Unexpected event"),
626 /// Get an error message from the pending events queue.
627 pub fn get_err_msg(node: &Node, recipient: &PublicKey) -> msgs::ErrorMessage {
628 let events = node.node.get_and_clear_pending_msg_events();
629 assert_eq!(events.len(), 1);
631 MessageSendEvent::HandleError {
632 action: msgs::ErrorAction::SendErrorMessage { ref msg }, ref node_id
634 assert_eq!(node_id, recipient);
637 _ => panic!("Unexpected event"),
641 /// Get a specific event from the pending events queue.
643 macro_rules! get_event {
644 ($node: expr, $event_type: path) => {
646 let mut events = $node.node.get_and_clear_pending_events();
647 assert_eq!(events.len(), 1);
648 let ev = events.pop().unwrap();
650 $event_type { .. } => {
653 _ => panic!("Unexpected event"),
659 /// Gets an UpdateHTLCs MessageSendEvent
660 pub fn get_htlc_update_msgs(node: &Node, recipient: &PublicKey) -> msgs::CommitmentUpdate {
661 let events = node.node.get_and_clear_pending_msg_events();
662 assert_eq!(events.len(), 1);
664 MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
665 assert_eq!(node_id, recipient);
668 _ => panic!("Unexpected event"),
673 /// Gets an UpdateHTLCs MessageSendEvent
675 /// Don't use this, use the identically-named function instead.
676 macro_rules! get_htlc_update_msgs {
677 ($node: expr, $node_id: expr) => {
678 $crate::ln::functional_test_utils::get_htlc_update_msgs(&$node, &$node_id)
682 /// Fetches the first `msg_event` to the passed `node_id` in the passed `msg_events` vec.
683 /// Returns the `msg_event`.
685 /// Note that even though `BroadcastChannelAnnouncement` and `BroadcastChannelUpdate`
686 /// `msg_events` are stored under specific peers, this function does not fetch such `msg_events` as
687 /// such messages are intended to all peers.
688 pub fn remove_first_msg_event_to_node(msg_node_id: &PublicKey, msg_events: &mut Vec<MessageSendEvent>) -> MessageSendEvent {
689 let ev_index = msg_events.iter().position(|e| { match e {
690 MessageSendEvent::SendAcceptChannel { node_id, .. } => {
691 node_id == msg_node_id
693 MessageSendEvent::SendOpenChannel { node_id, .. } => {
694 node_id == msg_node_id
696 MessageSendEvent::SendFundingCreated { node_id, .. } => {
697 node_id == msg_node_id
699 MessageSendEvent::SendFundingSigned { node_id, .. } => {
700 node_id == msg_node_id
702 MessageSendEvent::SendChannelReady { node_id, .. } => {
703 node_id == msg_node_id
705 MessageSendEvent::SendAnnouncementSignatures { node_id, .. } => {
706 node_id == msg_node_id
708 MessageSendEvent::UpdateHTLCs { node_id, .. } => {
709 node_id == msg_node_id
711 MessageSendEvent::SendRevokeAndACK { node_id, .. } => {
712 node_id == msg_node_id
714 MessageSendEvent::SendClosingSigned { node_id, .. } => {
715 node_id == msg_node_id
717 MessageSendEvent::SendShutdown { node_id, .. } => {
718 node_id == msg_node_id
720 MessageSendEvent::SendChannelReestablish { node_id, .. } => {
721 node_id == msg_node_id
723 MessageSendEvent::SendChannelAnnouncement { node_id, .. } => {
724 node_id == msg_node_id
726 MessageSendEvent::BroadcastChannelAnnouncement { .. } => {
729 MessageSendEvent::BroadcastChannelUpdate { .. } => {
732 MessageSendEvent::BroadcastNodeAnnouncement { .. } => {
735 MessageSendEvent::SendChannelUpdate { node_id, .. } => {
736 node_id == msg_node_id
738 MessageSendEvent::HandleError { node_id, .. } => {
739 node_id == msg_node_id
741 MessageSendEvent::SendChannelRangeQuery { node_id, .. } => {
742 node_id == msg_node_id
744 MessageSendEvent::SendShortIdsQuery { node_id, .. } => {
745 node_id == msg_node_id
747 MessageSendEvent::SendReplyChannelRange { node_id, .. } => {
748 node_id == msg_node_id
750 MessageSendEvent::SendGossipTimestampFilter { node_id, .. } => {
751 node_id == msg_node_id
753 MessageSendEvent::SendAcceptChannelV2 { node_id, .. } => {
754 node_id == msg_node_id
756 MessageSendEvent::SendOpenChannelV2 { node_id, .. } => {
757 node_id == msg_node_id
759 MessageSendEvent::SendTxAddInput { node_id, .. } => {
760 node_id == msg_node_id
762 MessageSendEvent::SendTxAddOutput { node_id, .. } => {
763 node_id == msg_node_id
765 MessageSendEvent::SendTxRemoveInput { node_id, .. } => {
766 node_id == msg_node_id
768 MessageSendEvent::SendTxRemoveOutput { node_id, .. } => {
769 node_id == msg_node_id
771 MessageSendEvent::SendTxComplete { node_id, .. } => {
772 node_id == msg_node_id
774 MessageSendEvent::SendTxSignatures { node_id, .. } => {
775 node_id == msg_node_id
777 MessageSendEvent::SendTxInitRbf { node_id, .. } => {
778 node_id == msg_node_id
780 MessageSendEvent::SendTxAckRbf { node_id, .. } => {
781 node_id == msg_node_id
783 MessageSendEvent::SendTxAbort { node_id, .. } => {
784 node_id == msg_node_id
787 if ev_index.is_some() {
788 msg_events.remove(ev_index.unwrap())
790 panic!("Couldn't find any MessageSendEvent to the node!")
795 macro_rules! get_channel_ref {
796 ($node: expr, $counterparty_node: expr, $per_peer_state_lock: ident, $peer_state_lock: ident, $channel_id: expr) => {
798 $per_peer_state_lock = $node.node.per_peer_state.read().unwrap();
799 $peer_state_lock = $per_peer_state_lock.get(&$counterparty_node.node.get_our_node_id()).unwrap().lock().unwrap();
800 $peer_state_lock.channel_by_id.get_mut(&$channel_id).unwrap()
806 macro_rules! get_outbound_v1_channel_ref {
807 ($node: expr, $counterparty_node: expr, $per_peer_state_lock: ident, $peer_state_lock: ident, $channel_id: expr) => {
809 $per_peer_state_lock = $node.node.per_peer_state.read().unwrap();
810 $peer_state_lock = $per_peer_state_lock.get(&$counterparty_node.node.get_our_node_id()).unwrap().lock().unwrap();
811 $peer_state_lock.outbound_v1_channel_by_id.get_mut(&$channel_id).unwrap()
817 macro_rules! get_inbound_v1_channel_ref {
818 ($node: expr, $counterparty_node: expr, $per_peer_state_lock: ident, $peer_state_lock: ident, $channel_id: expr) => {
820 $per_peer_state_lock = $node.node.per_peer_state.read().unwrap();
821 $peer_state_lock = $per_peer_state_lock.get(&$counterparty_node.node.get_our_node_id()).unwrap().lock().unwrap();
822 $peer_state_lock.inbound_v1_channel_by_id.get_mut(&$channel_id).unwrap()
828 macro_rules! get_feerate {
829 ($node: expr, $counterparty_node: expr, $channel_id: expr) => {
831 let mut per_peer_state_lock;
832 let mut peer_state_lock;
833 let chan = get_channel_ref!($node, $counterparty_node, per_peer_state_lock, peer_state_lock, $channel_id);
834 chan.context.get_feerate_sat_per_1000_weight()
840 macro_rules! get_channel_type_features {
841 ($node: expr, $counterparty_node: expr, $channel_id: expr) => {
843 let mut per_peer_state_lock;
844 let mut peer_state_lock;
845 let chan = get_channel_ref!($node, $counterparty_node, per_peer_state_lock, peer_state_lock, $channel_id);
846 chan.context.get_channel_type().clone()
851 /// Returns a channel monitor given a channel id, making some naive assumptions
853 macro_rules! get_monitor {
854 ($node: expr, $channel_id: expr) => {
856 use bitcoin::hashes::Hash;
857 let mut monitor = None;
858 // Assume funding vout is either 0 or 1 blindly
860 if let Ok(mon) = $node.chain_monitor.chain_monitor.get_monitor(
861 $crate::chain::transaction::OutPoint {
862 txid: bitcoin::Txid::from_slice(&$channel_id[..]).unwrap(), index
874 /// Returns any local commitment transactions for the channel.
876 macro_rules! get_local_commitment_txn {
877 ($node: expr, $channel_id: expr) => {
879 $crate::get_monitor!($node, $channel_id).unsafe_get_latest_holder_commitment_txn(&$node.logger)
884 /// Check the error from attempting a payment.
886 macro_rules! unwrap_send_err {
887 ($res: expr, $all_failed: expr, $type: pat, $check: expr) => {
889 &Err(PaymentSendFailure::AllFailedResendSafe(ref fails)) if $all_failed => {
890 assert_eq!(fails.len(), 1);
896 &Err(PaymentSendFailure::PartialFailure { ref results, .. }) if !$all_failed => {
897 assert_eq!(results.len(), 1);
899 Err($type) => { $check },
908 /// Check whether N channel monitor(s) have been added.
909 pub fn check_added_monitors<CM: AChannelManager, H: NodeHolder<CM=CM>>(node: &H, count: usize) {
910 if let Some(chain_monitor) = node.chain_monitor() {
911 let mut added_monitors = chain_monitor.added_monitors.lock().unwrap();
912 assert_eq!(added_monitors.len(), count);
913 added_monitors.clear();
917 /// Check whether N channel monitor(s) have been added.
919 /// Don't use this, use the identically-named function instead.
921 macro_rules! check_added_monitors {
922 ($node: expr, $count: expr) => {
923 $crate::ln::functional_test_utils::check_added_monitors(&$node, $count);
927 pub fn _reload_node<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, default_config: UserConfig, chanman_encoded: &[u8], monitors_encoded: &[&[u8]]) -> ChannelManager<&'b TestChainMonitor<'c>, &'c test_utils::TestBroadcaster, &'b test_utils::TestKeysInterface, &'b test_utils::TestKeysInterface, &'b test_utils::TestKeysInterface, &'c test_utils::TestFeeEstimator, &'b test_utils::TestRouter<'c>, &'c test_utils::TestLogger> {
928 let mut monitors_read = Vec::with_capacity(monitors_encoded.len());
929 for encoded in monitors_encoded {
930 let mut monitor_read = &encoded[..];
931 let (_, monitor) = <(BlockHash, ChannelMonitor<EnforcingSigner>)>
932 ::read(&mut monitor_read, (node.keys_manager, node.keys_manager)).unwrap();
933 assert!(monitor_read.is_empty());
934 monitors_read.push(monitor);
937 let mut node_read = &chanman_encoded[..];
938 let (_, node_deserialized) = {
939 let mut channel_monitors = HashMap::new();
940 for monitor in monitors_read.iter_mut() {
941 assert!(channel_monitors.insert(monitor.get_funding_txo().0, monitor).is_none());
943 <(BlockHash, ChannelManager<&test_utils::TestChainMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestKeysInterface, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestRouter, &test_utils::TestLogger>)>::read(&mut node_read, ChannelManagerReadArgs {
945 entropy_source: node.keys_manager,
946 node_signer: node.keys_manager,
947 signer_provider: node.keys_manager,
948 fee_estimator: node.fee_estimator,
950 chain_monitor: node.chain_monitor,
951 tx_broadcaster: node.tx_broadcaster,
956 assert!(node_read.is_empty());
958 for monitor in monitors_read.drain(..) {
959 assert_eq!(node.chain_monitor.watch_channel(monitor.get_funding_txo().0, monitor),
960 ChannelMonitorUpdateStatus::Completed);
961 check_added_monitors!(node, 1);
968 macro_rules! reload_node {
969 ($node: expr, $new_config: expr, $chanman_encoded: expr, $monitors_encoded: expr, $persister: ident, $new_chain_monitor: ident, $new_channelmanager: ident) => {
970 let chanman_encoded = $chanman_encoded;
972 $persister = test_utils::TestPersister::new();
973 $new_chain_monitor = test_utils::TestChainMonitor::new(Some($node.chain_source), $node.tx_broadcaster.clone(), $node.logger, $node.fee_estimator, &$persister, &$node.keys_manager);
974 $node.chain_monitor = &$new_chain_monitor;
976 $new_channelmanager = _reload_node(&$node, $new_config, &chanman_encoded, $monitors_encoded);
977 $node.node = &$new_channelmanager;
979 ($node: expr, $chanman_encoded: expr, $monitors_encoded: expr, $persister: ident, $new_chain_monitor: ident, $new_channelmanager: ident) => {
980 reload_node!($node, $crate::util::config::UserConfig::default(), $chanman_encoded, $monitors_encoded, $persister, $new_chain_monitor, $new_channelmanager);
984 pub fn create_funding_transaction<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, expected_counterparty_node_id: &PublicKey, expected_chan_value: u64, expected_user_chan_id: u128) -> ([u8; 32], Transaction, OutPoint) {
985 let chan_id = *node.network_chan_count.borrow();
987 let events = node.node.get_and_clear_pending_events();
988 assert_eq!(events.len(), 1);
990 Event::FundingGenerationReady { ref temporary_channel_id, ref counterparty_node_id, ref channel_value_satoshis, ref output_script, user_channel_id } => {
991 assert_eq!(counterparty_node_id, expected_counterparty_node_id);
992 assert_eq!(*channel_value_satoshis, expected_chan_value);
993 assert_eq!(user_channel_id, expected_user_chan_id);
995 let tx = Transaction { version: chan_id as i32, lock_time: PackedLockTime::ZERO, input: Vec::new(), output: vec![TxOut {
996 value: *channel_value_satoshis, script_pubkey: output_script.clone(),
998 let funding_outpoint = OutPoint { txid: tx.txid(), index: 0 };
999 (*temporary_channel_id, tx, funding_outpoint)
1001 _ => panic!("Unexpected event"),
1004 pub fn sign_funding_transaction<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a, 'b, 'c>, channel_value: u64, expected_temporary_channel_id: [u8; 32]) -> Transaction {
1005 let (temporary_channel_id, tx, funding_output) = create_funding_transaction(node_a, &node_b.node.get_our_node_id(), channel_value, 42);
1006 assert_eq!(temporary_channel_id, expected_temporary_channel_id);
1008 assert!(node_a.node.funding_transaction_generated(&temporary_channel_id, &node_b.node.get_our_node_id(), tx.clone()).is_ok());
1009 check_added_monitors!(node_a, 0);
1011 let funding_created_msg = get_event_msg!(node_a, MessageSendEvent::SendFundingCreated, node_b.node.get_our_node_id());
1012 assert_eq!(funding_created_msg.temporary_channel_id, expected_temporary_channel_id);
1013 node_b.node.handle_funding_created(&node_a.node.get_our_node_id(), &funding_created_msg);
1015 let mut added_monitors = node_b.chain_monitor.added_monitors.lock().unwrap();
1016 assert_eq!(added_monitors.len(), 1);
1017 assert_eq!(added_monitors[0].0, funding_output);
1018 added_monitors.clear();
1020 expect_channel_pending_event(&node_b, &node_a.node.get_our_node_id());
1022 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()));
1024 let mut added_monitors = node_a.chain_monitor.added_monitors.lock().unwrap();
1025 assert_eq!(added_monitors.len(), 1);
1026 assert_eq!(added_monitors[0].0, funding_output);
1027 added_monitors.clear();
1029 expect_channel_pending_event(&node_a, &node_b.node.get_our_node_id());
1031 let events_4 = node_a.node.get_and_clear_pending_events();
1032 assert_eq!(events_4.len(), 0);
1034 assert_eq!(node_a.tx_broadcaster.txn_broadcasted.lock().unwrap().len(), 1);
1035 assert_eq!(node_a.tx_broadcaster.txn_broadcasted.lock().unwrap()[0], tx);
1036 node_a.tx_broadcaster.txn_broadcasted.lock().unwrap().clear();
1038 // Ensure that funding_transaction_generated is idempotent.
1039 assert!(node_a.node.funding_transaction_generated(&temporary_channel_id, &node_b.node.get_our_node_id(), tx.clone()).is_err());
1040 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
1041 check_added_monitors!(node_a, 0);
1046 // Receiver must have been initialized with manually_accept_inbound_channels set to true.
1047 pub fn open_zero_conf_channel<'a, 'b, 'c, 'd>(initiator: &'a Node<'b, 'c, 'd>, receiver: &'a Node<'b, 'c, 'd>, initiator_config: Option<UserConfig>) -> (bitcoin::Transaction, [u8; 32]) {
1048 let initiator_channels = initiator.node.list_usable_channels().len();
1049 let receiver_channels = receiver.node.list_usable_channels().len();
1051 initiator.node.create_channel(receiver.node.get_our_node_id(), 100_000, 10_001, 42, initiator_config).unwrap();
1052 let open_channel = get_event_msg!(initiator, MessageSendEvent::SendOpenChannel, receiver.node.get_our_node_id());
1054 receiver.node.handle_open_channel(&initiator.node.get_our_node_id(), &open_channel);
1055 let events = receiver.node.get_and_clear_pending_events();
1056 assert_eq!(events.len(), 1);
1058 Event::OpenChannelRequest { temporary_channel_id, .. } => {
1059 receiver.node.accept_inbound_channel_from_trusted_peer_0conf(&temporary_channel_id, &initiator.node.get_our_node_id(), 0).unwrap();
1061 _ => panic!("Unexpected event"),
1064 let accept_channel = get_event_msg!(receiver, MessageSendEvent::SendAcceptChannel, initiator.node.get_our_node_id());
1065 assert_eq!(accept_channel.minimum_depth, 0);
1066 initiator.node.handle_accept_channel(&receiver.node.get_our_node_id(), &accept_channel);
1068 let (temporary_channel_id, tx, _) = create_funding_transaction(&initiator, &receiver.node.get_our_node_id(), 100_000, 42);
1069 initiator.node.funding_transaction_generated(&temporary_channel_id, &receiver.node.get_our_node_id(), tx.clone()).unwrap();
1070 let funding_created = get_event_msg!(initiator, MessageSendEvent::SendFundingCreated, receiver.node.get_our_node_id());
1072 receiver.node.handle_funding_created(&initiator.node.get_our_node_id(), &funding_created);
1073 check_added_monitors!(receiver, 1);
1074 let bs_signed_locked = receiver.node.get_and_clear_pending_msg_events();
1075 assert_eq!(bs_signed_locked.len(), 2);
1076 let as_channel_ready;
1077 match &bs_signed_locked[0] {
1078 MessageSendEvent::SendFundingSigned { node_id, msg } => {
1079 assert_eq!(*node_id, initiator.node.get_our_node_id());
1080 initiator.node.handle_funding_signed(&receiver.node.get_our_node_id(), &msg);
1081 expect_channel_pending_event(&initiator, &receiver.node.get_our_node_id());
1082 expect_channel_pending_event(&receiver, &initiator.node.get_our_node_id());
1083 check_added_monitors!(initiator, 1);
1085 assert_eq!(initiator.tx_broadcaster.txn_broadcasted.lock().unwrap().len(), 1);
1086 assert_eq!(initiator.tx_broadcaster.txn_broadcasted.lock().unwrap().split_off(0)[0], tx);
1088 as_channel_ready = get_event_msg!(initiator, MessageSendEvent::SendChannelReady, receiver.node.get_our_node_id());
1090 _ => panic!("Unexpected event"),
1092 match &bs_signed_locked[1] {
1093 MessageSendEvent::SendChannelReady { node_id, msg } => {
1094 assert_eq!(*node_id, initiator.node.get_our_node_id());
1095 initiator.node.handle_channel_ready(&receiver.node.get_our_node_id(), &msg);
1096 expect_channel_ready_event(&initiator, &receiver.node.get_our_node_id());
1098 _ => panic!("Unexpected event"),
1101 receiver.node.handle_channel_ready(&initiator.node.get_our_node_id(), &as_channel_ready);
1102 expect_channel_ready_event(&receiver, &initiator.node.get_our_node_id());
1104 let as_channel_update = get_event_msg!(initiator, MessageSendEvent::SendChannelUpdate, receiver.node.get_our_node_id());
1105 let bs_channel_update = get_event_msg!(receiver, MessageSendEvent::SendChannelUpdate, initiator.node.get_our_node_id());
1107 initiator.node.handle_channel_update(&receiver.node.get_our_node_id(), &bs_channel_update);
1108 receiver.node.handle_channel_update(&initiator.node.get_our_node_id(), &as_channel_update);
1110 assert_eq!(initiator.node.list_usable_channels().len(), initiator_channels + 1);
1111 assert_eq!(receiver.node.list_usable_channels().len(), receiver_channels + 1);
1113 (tx, as_channel_ready.channel_id)
1116 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) -> Transaction {
1117 let create_chan_id = node_a.node.create_channel(node_b.node.get_our_node_id(), channel_value, push_msat, 42, None).unwrap();
1118 let open_channel_msg = get_event_msg!(node_a, MessageSendEvent::SendOpenChannel, node_b.node.get_our_node_id());
1119 assert_eq!(open_channel_msg.temporary_channel_id, create_chan_id);
1120 assert_eq!(node_a.node.list_channels().iter().find(|channel| channel.channel_id == create_chan_id).unwrap().user_channel_id, 42);
1121 node_b.node.handle_open_channel(&node_a.node.get_our_node_id(), &open_channel_msg);
1122 if node_b.node.get_current_default_configuration().manually_accept_inbound_channels {
1123 let events = node_b.node.get_and_clear_pending_events();
1124 assert_eq!(events.len(), 1);
1126 Event::OpenChannelRequest { temporary_channel_id, counterparty_node_id, .. } =>
1127 node_b.node.accept_inbound_channel(temporary_channel_id, counterparty_node_id, 42).unwrap(),
1128 _ => panic!("Unexpected event"),
1131 let accept_channel_msg = get_event_msg!(node_b, MessageSendEvent::SendAcceptChannel, node_a.node.get_our_node_id());
1132 assert_eq!(accept_channel_msg.temporary_channel_id, create_chan_id);
1133 node_a.node.handle_accept_channel(&node_b.node.get_our_node_id(), &accept_channel_msg);
1134 assert_ne!(node_b.node.list_channels().iter().find(|channel| channel.channel_id == create_chan_id).unwrap().user_channel_id, 0);
1136 sign_funding_transaction(node_a, node_b, channel_value, create_chan_id)
1139 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, conf_height: u32) {
1140 confirm_transaction_at(node_conf, tx, conf_height);
1141 connect_blocks(node_conf, CHAN_CONFIRM_DEPTH - 1);
1142 node_recv.node.handle_channel_ready(&node_conf.node.get_our_node_id(), &get_event_msg!(node_conf, MessageSendEvent::SendChannelReady, node_recv.node.get_our_node_id()));
1145 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::ChannelReady, msgs::AnnouncementSignatures), [u8; 32]) {
1147 let events_6 = node_conf.node.get_and_clear_pending_msg_events();
1148 assert_eq!(events_6.len(), 3);
1149 let announcement_sigs_idx = if let MessageSendEvent::SendChannelUpdate { ref node_id, msg: _ } = events_6[1] {
1150 assert_eq!(*node_id, node_recv.node.get_our_node_id());
1152 } else if let MessageSendEvent::SendChannelUpdate { ref node_id, msg: _ } = events_6[2] {
1153 assert_eq!(*node_id, node_recv.node.get_our_node_id());
1155 } else { panic!("Unexpected event: {:?}", events_6[1]); };
1156 ((match events_6[0] {
1157 MessageSendEvent::SendChannelReady { ref node_id, ref msg } => {
1158 channel_id = msg.channel_id.clone();
1159 assert_eq!(*node_id, node_recv.node.get_our_node_id());
1162 _ => panic!("Unexpected event"),
1163 }, match events_6[announcement_sigs_idx] {
1164 MessageSendEvent::SendAnnouncementSignatures { ref node_id, ref msg } => {
1165 assert_eq!(*node_id, node_recv.node.get_our_node_id());
1168 _ => panic!("Unexpected event"),
1172 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::ChannelReady, msgs::AnnouncementSignatures), [u8; 32]) {
1173 let conf_height = core::cmp::max(node_a.best_block_info().1 + 1, node_b.best_block_info().1 + 1);
1174 create_chan_between_nodes_with_value_confirm_first(node_a, node_b, tx, conf_height);
1175 confirm_transaction_at(node_a, tx, conf_height);
1176 connect_blocks(node_a, CHAN_CONFIRM_DEPTH - 1);
1177 expect_channel_ready_event(&node_a, &node_b.node.get_our_node_id());
1178 create_chan_between_nodes_with_value_confirm_second(node_b, node_a)
1181 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) -> ((msgs::ChannelReady, msgs::AnnouncementSignatures), [u8; 32], Transaction) {
1182 let tx = create_chan_between_nodes_with_value_init(node_a, node_b, channel_value, push_msat);
1183 let (msgs, chan_id) = create_chan_between_nodes_with_value_confirm(node_a, node_b, &tx);
1187 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::ChannelReady, msgs::AnnouncementSignatures)) -> (msgs::ChannelAnnouncement, msgs::ChannelUpdate, msgs::ChannelUpdate) {
1188 node_b.node.handle_channel_ready(&node_a.node.get_our_node_id(), &as_funding_msgs.0);
1189 let bs_announcement_sigs = get_event_msg!(node_b, MessageSendEvent::SendAnnouncementSignatures, node_a.node.get_our_node_id());
1190 node_b.node.handle_announcement_signatures(&node_a.node.get_our_node_id(), &as_funding_msgs.1);
1192 let events_7 = node_b.node.get_and_clear_pending_msg_events();
1193 assert_eq!(events_7.len(), 1);
1194 let (announcement, bs_update) = match events_7[0] {
1195 MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
1196 (msg, update_msg.clone().unwrap())
1198 _ => panic!("Unexpected event"),
1201 node_a.node.handle_announcement_signatures(&node_b.node.get_our_node_id(), &bs_announcement_sigs);
1202 let events_8 = node_a.node.get_and_clear_pending_msg_events();
1203 assert_eq!(events_8.len(), 1);
1204 let as_update = match events_8[0] {
1205 MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
1206 assert!(*announcement == *msg);
1207 let update_msg = update_msg.clone().unwrap();
1208 assert_eq!(update_msg.contents.short_channel_id, announcement.contents.short_channel_id);
1209 assert_eq!(update_msg.contents.short_channel_id, bs_update.contents.short_channel_id);
1212 _ => panic!("Unexpected event"),
1215 *node_a.network_chan_count.borrow_mut() += 1;
1217 expect_channel_ready_event(&node_b, &node_a.node.get_our_node_id());
1218 ((*announcement).clone(), as_update, bs_update)
1221 pub fn create_announced_chan_between_nodes<'a, 'b, 'c, 'd>(nodes: &'a Vec<Node<'b, 'c, 'd>>, a: usize, b: usize) -> (msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
1222 create_announced_chan_between_nodes_with_value(nodes, a, b, 100000, 10001)
1225 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) -> (msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
1226 let chan_announcement = create_chan_between_nodes_with_value(&nodes[a], &nodes[b], channel_value, push_msat);
1227 update_nodes_with_chan_announce(nodes, a, b, &chan_announcement.0, &chan_announcement.1, &chan_announcement.2);
1228 (chan_announcement.1, chan_announcement.2, chan_announcement.3, chan_announcement.4)
1231 pub fn create_unannounced_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) -> (msgs::ChannelReady, Transaction) {
1232 let mut no_announce_cfg = test_default_channel_config();
1233 no_announce_cfg.channel_handshake_config.announced_channel = false;
1234 nodes[a].node.create_channel(nodes[b].node.get_our_node_id(), channel_value, push_msat, 42, Some(no_announce_cfg)).unwrap();
1235 let open_channel = get_event_msg!(nodes[a], MessageSendEvent::SendOpenChannel, nodes[b].node.get_our_node_id());
1236 nodes[b].node.handle_open_channel(&nodes[a].node.get_our_node_id(), &open_channel);
1237 let accept_channel = get_event_msg!(nodes[b], MessageSendEvent::SendAcceptChannel, nodes[a].node.get_our_node_id());
1238 nodes[a].node.handle_accept_channel(&nodes[b].node.get_our_node_id(), &accept_channel);
1240 let (temporary_channel_id, tx, _) = create_funding_transaction(&nodes[a], &nodes[b].node.get_our_node_id(), channel_value, 42);
1241 nodes[a].node.funding_transaction_generated(&temporary_channel_id, &nodes[b].node.get_our_node_id(), tx.clone()).unwrap();
1242 nodes[b].node.handle_funding_created(&nodes[a].node.get_our_node_id(), &get_event_msg!(nodes[a], MessageSendEvent::SendFundingCreated, nodes[b].node.get_our_node_id()));
1243 check_added_monitors!(nodes[b], 1);
1245 let cs_funding_signed = get_event_msg!(nodes[b], MessageSendEvent::SendFundingSigned, nodes[a].node.get_our_node_id());
1246 expect_channel_pending_event(&nodes[b], &nodes[a].node.get_our_node_id());
1248 nodes[a].node.handle_funding_signed(&nodes[b].node.get_our_node_id(), &cs_funding_signed);
1249 expect_channel_pending_event(&nodes[a], &nodes[b].node.get_our_node_id());
1250 check_added_monitors!(nodes[a], 1);
1252 assert_eq!(nodes[a].tx_broadcaster.txn_broadcasted.lock().unwrap().len(), 1);
1253 assert_eq!(nodes[a].tx_broadcaster.txn_broadcasted.lock().unwrap()[0], tx);
1254 nodes[a].tx_broadcaster.txn_broadcasted.lock().unwrap().clear();
1256 let conf_height = core::cmp::max(nodes[a].best_block_info().1 + 1, nodes[b].best_block_info().1 + 1);
1257 confirm_transaction_at(&nodes[a], &tx, conf_height);
1258 connect_blocks(&nodes[a], CHAN_CONFIRM_DEPTH - 1);
1259 confirm_transaction_at(&nodes[b], &tx, conf_height);
1260 connect_blocks(&nodes[b], CHAN_CONFIRM_DEPTH - 1);
1261 let as_channel_ready = get_event_msg!(nodes[a], MessageSendEvent::SendChannelReady, nodes[b].node.get_our_node_id());
1262 nodes[a].node.handle_channel_ready(&nodes[b].node.get_our_node_id(), &get_event_msg!(nodes[b], MessageSendEvent::SendChannelReady, nodes[a].node.get_our_node_id()));
1263 expect_channel_ready_event(&nodes[a], &nodes[b].node.get_our_node_id());
1264 let as_update = get_event_msg!(nodes[a], MessageSendEvent::SendChannelUpdate, nodes[b].node.get_our_node_id());
1265 nodes[b].node.handle_channel_ready(&nodes[a].node.get_our_node_id(), &as_channel_ready);
1266 expect_channel_ready_event(&nodes[b], &nodes[a].node.get_our_node_id());
1267 let bs_update = get_event_msg!(nodes[b], MessageSendEvent::SendChannelUpdate, nodes[a].node.get_our_node_id());
1269 nodes[a].node.handle_channel_update(&nodes[b].node.get_our_node_id(), &bs_update);
1270 nodes[b].node.handle_channel_update(&nodes[a].node.get_our_node_id(), &as_update);
1272 let mut found_a = false;
1273 for chan in nodes[a].node.list_usable_channels() {
1274 if chan.channel_id == as_channel_ready.channel_id {
1277 assert!(!chan.is_public);
1282 let mut found_b = false;
1283 for chan in nodes[b].node.list_usable_channels() {
1284 if chan.channel_id == as_channel_ready.channel_id {
1287 assert!(!chan.is_public);
1292 (as_channel_ready, tx)
1295 pub fn update_nodes_with_chan_announce<'a, 'b, 'c, 'd>(nodes: &'a Vec<Node<'b, 'c, 'd>>, a: usize, b: usize, ann: &msgs::ChannelAnnouncement, upd_1: &msgs::ChannelUpdate, upd_2: &msgs::ChannelUpdate) {
1297 assert!(node.gossip_sync.handle_channel_announcement(ann).unwrap());
1298 node.gossip_sync.handle_channel_update(upd_1).unwrap();
1299 node.gossip_sync.handle_channel_update(upd_2).unwrap();
1301 // Note that channel_updates are also delivered to ChannelManagers to ensure we have
1302 // forwarding info for local channels even if its not accepted in the network graph.
1303 node.node.handle_channel_update(&nodes[a].node.get_our_node_id(), &upd_1);
1304 node.node.handle_channel_update(&nodes[b].node.get_our_node_id(), &upd_2);
1308 pub fn do_check_spends<F: Fn(&bitcoin::blockdata::transaction::OutPoint) -> Option<TxOut>>(tx: &Transaction, get_output: F) {
1309 for outp in tx.output.iter() {
1310 assert!(outp.value >= outp.script_pubkey.dust_value().to_sat(), "Spending tx output didn't meet dust limit");
1312 let mut total_value_in = 0;
1313 for input in tx.input.iter() {
1314 total_value_in += get_output(&input.previous_output).unwrap().value;
1316 let mut total_value_out = 0;
1317 for output in tx.output.iter() {
1318 total_value_out += output.value;
1320 let min_fee = (tx.weight() as u64 + 3) / 4; // One sat per vbyte (ie per weight/4, rounded up)
1321 // Input amount - output amount = fee, so check that out + min_fee is smaller than input
1322 assert!(total_value_out + min_fee <= total_value_in);
1323 tx.verify(get_output).unwrap();
1327 macro_rules! check_spends {
1328 ($tx: expr, $($spends_txn: expr),*) => {
1331 for outp in $spends_txn.output.iter() {
1332 assert!(outp.value >= outp.script_pubkey.dust_value().to_sat(), "Input tx output didn't meet dust limit");
1335 let get_output = |out_point: &bitcoin::blockdata::transaction::OutPoint| {
1337 if out_point.txid == $spends_txn.txid() {
1338 return $spends_txn.output.get(out_point.vout as usize).cloned()
1343 $crate::ln::functional_test_utils::do_check_spends(&$tx, get_output);
1348 macro_rules! get_closing_signed_broadcast {
1349 ($node: expr, $dest_pubkey: expr) => {
1351 let events = $node.get_and_clear_pending_msg_events();
1352 assert!(events.len() == 1 || events.len() == 2);
1353 (match events[events.len() - 1] {
1354 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
1355 assert_eq!(msg.contents.flags & 2, 2);
1358 _ => panic!("Unexpected event"),
1359 }, if events.len() == 2 {
1361 MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => {
1362 assert_eq!(*node_id, $dest_pubkey);
1365 _ => panic!("Unexpected event"),
1373 macro_rules! check_warn_msg {
1374 ($node: expr, $recipient_node_id: expr, $chan_id: expr) => {{
1375 let msg_events = $node.node.get_and_clear_pending_msg_events();
1376 assert_eq!(msg_events.len(), 1);
1377 match msg_events[0] {
1378 MessageSendEvent::HandleError { action: ErrorAction::SendWarningMessage { ref msg, log_level: _ }, node_id } => {
1379 assert_eq!(node_id, $recipient_node_id);
1380 assert_eq!(msg.channel_id, $chan_id);
1383 _ => panic!("Unexpected event"),
1388 /// Check that a channel's closing channel update has been broadcasted, and optionally
1389 /// check whether an error message event has occurred.
1390 pub fn check_closed_broadcast(node: &Node, num_channels: usize, with_error_msg: bool) -> Vec<msgs::ErrorMessage> {
1391 let msg_events = node.node.get_and_clear_pending_msg_events();
1392 assert_eq!(msg_events.len(), if with_error_msg { num_channels * 2 } else { num_channels });
1393 msg_events.into_iter().filter_map(|msg_event| {
1395 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
1396 assert_eq!(msg.contents.flags & 2, 2);
1399 MessageSendEvent::HandleError { action: msgs::ErrorAction::SendErrorMessage { ref msg }, node_id: _ } => {
1400 assert!(with_error_msg);
1401 // TODO: Check node_id
1404 _ => panic!("Unexpected event"),
1409 /// Check that a channel's closing channel update has been broadcasted, and optionally
1410 /// check whether an error message event has occurred.
1412 /// Don't use this, use the identically-named function instead.
1414 macro_rules! check_closed_broadcast {
1415 ($node: expr, $with_error_msg: expr) => {
1416 $crate::ln::functional_test_utils::check_closed_broadcast(&$node, 1, $with_error_msg).pop()
1420 /// Check that a channel's closing channel events has been issued
1421 pub fn check_closed_event(node: &Node, events_count: usize, expected_reason: ClosureReason, is_check_discard_funding: bool) {
1422 let events = node.node.get_and_clear_pending_events();
1423 assert_eq!(events.len(), events_count, "{:?}", events);
1424 let mut issues_discard_funding = false;
1425 for event in events {
1427 Event::ChannelClosed { ref reason, .. } => {
1428 assert_eq!(*reason, expected_reason);
1430 Event::DiscardFunding { .. } => {
1431 issues_discard_funding = true;
1433 _ => panic!("Unexpected event"),
1436 assert_eq!(is_check_discard_funding, issues_discard_funding);
1439 /// Check that a channel's closing channel events has been issued
1441 /// Don't use this, use the identically-named function instead.
1443 macro_rules! check_closed_event {
1444 ($node: expr, $events: expr, $reason: expr) => {
1445 check_closed_event!($node, $events, $reason, false);
1447 ($node: expr, $events: expr, $reason: expr, $is_check_discard_funding: expr) => {
1448 $crate::ln::functional_test_utils::check_closed_event(&$node, $events, $reason, $is_check_discard_funding);
1452 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) {
1453 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) };
1454 let (node_b, broadcaster_b, struct_b) = if close_inbound_first { (&outbound_node.node, &outbound_node.tx_broadcaster, outbound_node) } else { (&inbound_node.node, &inbound_node.tx_broadcaster, inbound_node) };
1457 node_a.close_channel(channel_id, &node_b.get_our_node_id()).unwrap();
1458 node_b.handle_shutdown(&node_a.get_our_node_id(), &get_event_msg!(struct_a, MessageSendEvent::SendShutdown, node_b.get_our_node_id()));
1460 let events_1 = node_b.get_and_clear_pending_msg_events();
1461 assert!(events_1.len() >= 1);
1462 let shutdown_b = match events_1[0] {
1463 MessageSendEvent::SendShutdown { ref node_id, ref msg } => {
1464 assert_eq!(node_id, &node_a.get_our_node_id());
1467 _ => panic!("Unexpected event"),
1470 let closing_signed_b = if !close_inbound_first {
1471 assert_eq!(events_1.len(), 1);
1474 Some(match events_1[1] {
1475 MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => {
1476 assert_eq!(node_id, &node_a.get_our_node_id());
1479 _ => panic!("Unexpected event"),
1483 node_a.handle_shutdown(&node_b.get_our_node_id(), &shutdown_b);
1484 let (as_update, bs_update) = if close_inbound_first {
1485 assert!(node_a.get_and_clear_pending_msg_events().is_empty());
1486 node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap());
1488 node_b.handle_closing_signed(&node_a.get_our_node_id(), &get_event_msg!(struct_a, MessageSendEvent::SendClosingSigned, node_b.get_our_node_id()));
1489 assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1);
1490 tx_b = broadcaster_b.txn_broadcasted.lock().unwrap().remove(0);
1491 let (bs_update, closing_signed_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id());
1493 node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap());
1494 let (as_update, none_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id());
1495 assert!(none_a.is_none());
1496 assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1);
1497 tx_a = broadcaster_a.txn_broadcasted.lock().unwrap().remove(0);
1498 (as_update, bs_update)
1500 let closing_signed_a = get_event_msg!(struct_a, MessageSendEvent::SendClosingSigned, node_b.get_our_node_id());
1502 node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a);
1503 node_a.handle_closing_signed(&node_b.get_our_node_id(), &get_event_msg!(struct_b, MessageSendEvent::SendClosingSigned, node_a.get_our_node_id()));
1505 assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1);
1506 tx_a = broadcaster_a.txn_broadcasted.lock().unwrap().remove(0);
1507 let (as_update, closing_signed_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id());
1509 node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a.unwrap());
1510 let (bs_update, none_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id());
1511 assert!(none_b.is_none());
1512 assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1);
1513 tx_b = broadcaster_b.txn_broadcasted.lock().unwrap().remove(0);
1514 (as_update, bs_update)
1516 assert_eq!(tx_a, tx_b);
1517 check_spends!(tx_a, funding_tx);
1519 (as_update, bs_update, tx_a)
1522 pub struct SendEvent {
1523 pub node_id: PublicKey,
1524 pub msgs: Vec<msgs::UpdateAddHTLC>,
1525 pub commitment_msg: msgs::CommitmentSigned,
1528 pub fn from_commitment_update(node_id: PublicKey, updates: msgs::CommitmentUpdate) -> SendEvent {
1529 assert!(updates.update_fulfill_htlcs.is_empty());
1530 assert!(updates.update_fail_htlcs.is_empty());
1531 assert!(updates.update_fail_malformed_htlcs.is_empty());
1532 assert!(updates.update_fee.is_none());
1533 SendEvent { node_id, msgs: updates.update_add_htlcs, commitment_msg: updates.commitment_signed }
1536 pub fn from_event(event: MessageSendEvent) -> SendEvent {
1538 MessageSendEvent::UpdateHTLCs { node_id, updates } => SendEvent::from_commitment_update(node_id, updates),
1539 _ => panic!("Unexpected event type!"),
1543 pub fn from_node<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>) -> SendEvent {
1544 let mut events = node.node.get_and_clear_pending_msg_events();
1545 assert_eq!(events.len(), 1);
1546 SendEvent::from_event(events.pop().unwrap())
1551 /// Don't use this, use the identically-named function instead.
1552 macro_rules! expect_pending_htlcs_forwardable_conditions {
1553 ($node: expr, $expected_failures: expr) => {
1554 $crate::ln::functional_test_utils::expect_pending_htlcs_forwardable_conditions($node.node.get_and_clear_pending_events(), &$expected_failures);
1559 macro_rules! expect_htlc_handling_failed_destinations {
1560 ($events: expr, $expected_failures: expr) => {{
1561 for event in $events {
1563 $crate::events::Event::PendingHTLCsForwardable { .. } => { },
1564 $crate::events::Event::HTLCHandlingFailed { ref failed_next_destination, .. } => {
1565 assert!($expected_failures.contains(&failed_next_destination))
1567 _ => panic!("Unexpected destination"),
1573 /// Checks that an [`Event::PendingHTLCsForwardable`] is available in the given events and, if
1574 /// there are any [`Event::HTLCHandlingFailed`] events their [`HTLCDestination`] is included in the
1575 /// `expected_failures` set.
1576 pub fn expect_pending_htlcs_forwardable_conditions(events: Vec<Event>, expected_failures: &[HTLCDestination]) {
1578 Event::PendingHTLCsForwardable { .. } => { },
1579 _ => panic!("Unexpected event {:?}", events),
1582 let count = expected_failures.len() + 1;
1583 assert_eq!(events.len(), count);
1585 if expected_failures.len() > 0 {
1586 expect_htlc_handling_failed_destinations!(events, expected_failures)
1591 /// Clears (and ignores) a PendingHTLCsForwardable event
1593 /// Don't use this, call [`expect_pending_htlcs_forwardable_conditions()`] with an empty failure
1595 macro_rules! expect_pending_htlcs_forwardable_ignore {
1597 $crate::ln::functional_test_utils::expect_pending_htlcs_forwardable_conditions($node.node.get_and_clear_pending_events(), &[]);
1602 /// Clears (and ignores) PendingHTLCsForwardable and HTLCHandlingFailed events
1604 /// Don't use this, call [`expect_pending_htlcs_forwardable_conditions()`] instead.
1605 macro_rules! expect_pending_htlcs_forwardable_and_htlc_handling_failed_ignore {
1606 ($node: expr, $expected_failures: expr) => {
1607 $crate::ln::functional_test_utils::expect_pending_htlcs_forwardable_conditions($node.node.get_and_clear_pending_events(), &$expected_failures);
1612 /// Handles a PendingHTLCsForwardable event
1613 macro_rules! expect_pending_htlcs_forwardable {
1615 $crate::ln::functional_test_utils::expect_pending_htlcs_forwardable_conditions($node.node.get_and_clear_pending_events(), &[]);
1616 $node.node.process_pending_htlc_forwards();
1618 // Ensure process_pending_htlc_forwards is idempotent.
1619 $node.node.process_pending_htlc_forwards();
1624 /// Handles a PendingHTLCsForwardable and HTLCHandlingFailed event
1625 macro_rules! expect_pending_htlcs_forwardable_and_htlc_handling_failed {
1626 ($node: expr, $expected_failures: expr) => {{
1627 $crate::ln::functional_test_utils::expect_pending_htlcs_forwardable_conditions($node.node.get_and_clear_pending_events(), &$expected_failures);
1628 $node.node.process_pending_htlc_forwards();
1630 // Ensure process_pending_htlc_forwards is idempotent.
1631 $node.node.process_pending_htlc_forwards();
1636 macro_rules! expect_pending_htlcs_forwardable_from_events {
1637 ($node: expr, $events: expr, $ignore: expr) => {{
1638 assert_eq!($events.len(), 1);
1640 Event::PendingHTLCsForwardable { .. } => { },
1641 _ => panic!("Unexpected event"),
1644 $node.node.process_pending_htlc_forwards();
1646 // Ensure process_pending_htlc_forwards is idempotent.
1647 $node.node.process_pending_htlc_forwards();
1653 /// Performs the "commitment signed dance" - the series of message exchanges which occur after a
1654 /// commitment update.
1655 macro_rules! commitment_signed_dance {
1656 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr, true /* skip last step */) => {
1657 $crate::ln::functional_test_utils::do_commitment_signed_dance(&$node_a, &$node_b, &$commitment_signed, $fail_backwards, true);
1659 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, true /* return extra message */, true /* return last RAA */) => {
1660 $crate::ln::functional_test_utils::do_main_commitment_signed_dance(&$node_a, &$node_b, $fail_backwards)
1662 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr, true /* skip last step */, false /* return extra message */, true /* return last RAA */) => {
1664 $crate::ln::functional_test_utils::check_added_monitors(&$node_a, 0);
1665 assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
1666 $node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed);
1667 check_added_monitors(&$node_a, 1);
1668 let (extra_msg_option, bs_revoke_and_ack) = $crate::ln::functional_test_utils::do_main_commitment_signed_dance(&$node_a, &$node_b, $fail_backwards);
1669 assert!(extra_msg_option.is_none());
1673 ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, false /* no extra message */) => {
1674 assert!($crate::ln::functional_test_utils::commitment_signed_dance_through_cp_raa(&$node_a, &$node_b, $fail_backwards).is_none());
1676 ($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr) => {
1677 $crate::ln::functional_test_utils::do_commitment_signed_dance(&$node_a, &$node_b, &$commitment_signed, $fail_backwards, false);
1681 /// Runs the commitment_signed dance after the initial commitment_signed is delivered through to
1682 /// the initiator's `revoke_and_ack` response. i.e. [`do_main_commitment_signed_dance`] plus the
1683 /// `revoke_and_ack` response to it.
1685 /// Returns any additional message `node_b` generated in addition to the `revoke_and_ack` response.
1686 pub fn commitment_signed_dance_through_cp_raa(node_a: &Node<'_, '_, '_>, node_b: &Node<'_, '_, '_>, fail_backwards: bool) -> Option<MessageSendEvent> {
1687 let (extra_msg_option, bs_revoke_and_ack) = do_main_commitment_signed_dance(node_a, node_b, fail_backwards);
1688 node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &bs_revoke_and_ack);
1689 check_added_monitors(node_a, 1);
1693 /// Does the main logic in the commitment_signed dance. After the first `commitment_signed` has
1694 /// been delivered, this method picks up and delivers the response `revoke_and_ack` and
1695 /// `commitment_signed`, returning the recipient's `revoke_and_ack` and any extra message it may
1697 pub fn do_main_commitment_signed_dance(node_a: &Node<'_, '_, '_>, node_b: &Node<'_, '_, '_>, fail_backwards: bool) -> (Option<MessageSendEvent>, msgs::RevokeAndACK) {
1698 let (as_revoke_and_ack, as_commitment_signed) = get_revoke_commit_msgs!(node_a, node_b.node.get_our_node_id());
1699 check_added_monitors!(node_b, 0);
1700 assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
1701 node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &as_revoke_and_ack);
1702 assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
1703 check_added_monitors!(node_b, 1);
1704 node_b.node.handle_commitment_signed(&node_a.node.get_our_node_id(), &as_commitment_signed);
1705 let (bs_revoke_and_ack, extra_msg_option) = {
1706 let mut events = node_b.node.get_and_clear_pending_msg_events();
1707 assert!(events.len() <= 2);
1708 let node_a_event = remove_first_msg_event_to_node(&node_a.node.get_our_node_id(), &mut events);
1709 (match node_a_event {
1710 MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
1711 assert_eq!(*node_id, node_a.node.get_our_node_id());
1714 _ => panic!("Unexpected event"),
1715 }, events.get(0).map(|e| e.clone()))
1717 check_added_monitors!(node_b, 1);
1719 assert!(node_a.node.get_and_clear_pending_events().is_empty());
1720 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
1722 (extra_msg_option, bs_revoke_and_ack)
1725 /// Runs a full commitment_signed dance, delivering a commitment_signed, the responding
1726 /// `revoke_and_ack` and `commitment_signed`, and then the final `revoke_and_ack` response.
1728 /// If `skip_last_step` is unset, also checks for the payment failure update for the previous hop
1729 /// on failure or that no new messages are left over on success.
1730 pub fn do_commitment_signed_dance(node_a: &Node<'_, '_, '_>, node_b: &Node<'_, '_, '_>, commitment_signed: &msgs::CommitmentSigned, fail_backwards: bool, skip_last_step: bool) {
1731 check_added_monitors!(node_a, 0);
1732 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
1733 node_a.node.handle_commitment_signed(&node_b.node.get_our_node_id(), commitment_signed);
1734 check_added_monitors!(node_a, 1);
1736 commitment_signed_dance!(node_a, node_b, (), fail_backwards, true, false);
1738 if skip_last_step { return; }
1741 expect_pending_htlcs_forwardable_and_htlc_handling_failed!(node_a,
1742 vec![crate::events::HTLCDestination::NextHopChannel{ node_id: Some(node_b.node.get_our_node_id()), channel_id: commitment_signed.channel_id }]);
1743 check_added_monitors!(node_a, 1);
1745 let node_a_per_peer_state = node_a.node.per_peer_state.read().unwrap();
1746 let mut number_of_msg_events = 0;
1747 for (cp_id, peer_state_mutex) in node_a_per_peer_state.iter() {
1748 let peer_state = peer_state_mutex.lock().unwrap();
1749 let cp_pending_msg_events = &peer_state.pending_msg_events;
1750 number_of_msg_events += cp_pending_msg_events.len();
1751 if cp_pending_msg_events.len() == 1 {
1752 if let MessageSendEvent::UpdateHTLCs { .. } = cp_pending_msg_events[0] {
1753 assert_ne!(*cp_id, node_b.node.get_our_node_id());
1754 } else { panic!("Unexpected event"); }
1757 // Expecting the failure backwards event to the previous hop (not `node_b`)
1758 assert_eq!(number_of_msg_events, 1);
1760 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
1764 /// Get a payment preimage and hash.
1765 pub fn get_payment_preimage_hash(recipient: &Node, min_value_msat: Option<u64>, min_final_cltv_expiry_delta: Option<u16>) -> (PaymentPreimage, PaymentHash, PaymentSecret) {
1766 let mut payment_count = recipient.network_payment_count.borrow_mut();
1767 let payment_preimage = PaymentPreimage([*payment_count; 32]);
1768 *payment_count += 1;
1769 let payment_hash = PaymentHash(Sha256::hash(&payment_preimage.0[..]).into_inner());
1770 let payment_secret = recipient.node.create_inbound_payment_for_hash(payment_hash, min_value_msat, 7200, min_final_cltv_expiry_delta).unwrap();
1771 (payment_preimage, payment_hash, payment_secret)
1774 /// Get a payment preimage and hash.
1776 /// Don't use this, use the identically-named function instead.
1778 macro_rules! get_payment_preimage_hash {
1779 ($dest_node: expr) => {
1780 get_payment_preimage_hash!($dest_node, None)
1782 ($dest_node: expr, $min_value_msat: expr) => {
1783 crate::get_payment_preimage_hash!($dest_node, $min_value_msat, None)
1785 ($dest_node: expr, $min_value_msat: expr, $min_final_cltv_expiry_delta: expr) => {
1786 $crate::ln::functional_test_utils::get_payment_preimage_hash(&$dest_node, $min_value_msat, $min_final_cltv_expiry_delta)
1790 /// Gets a route from the given sender to the node described in `payment_params`.
1791 pub fn get_route(send_node: &Node, payment_params: &PaymentParameters, recv_value: u64) -> Result<Route, msgs::LightningError> {
1792 let scorer = TestScorer::new();
1793 let keys_manager = TestKeysInterface::new(&[0u8; 32], bitcoin::network::constants::Network::Testnet);
1794 let random_seed_bytes = keys_manager.get_secure_random_bytes();
1796 &send_node.node.get_our_node_id(), payment_params, &send_node.network_graph.read_only(),
1797 Some(&send_node.node.list_usable_channels().iter().collect::<Vec<_>>()),
1798 recv_value, send_node.logger, &scorer, &Default::default(), &random_seed_bytes
1802 /// Gets a route from the given sender to the node described in `payment_params`.
1804 /// Don't use this, use the identically-named function instead.
1806 macro_rules! get_route {
1807 ($send_node: expr, $payment_params: expr, $recv_value: expr) => {
1808 $crate::ln::functional_test_utils::get_route(&$send_node, &$payment_params, $recv_value)
1814 macro_rules! get_route_and_payment_hash {
1815 ($send_node: expr, $recv_node: expr, $recv_value: expr) => {{
1816 let payment_params = $crate::routing::router::PaymentParameters::from_node_id($recv_node.node.get_our_node_id(), TEST_FINAL_CLTV)
1817 .with_bolt11_features($recv_node.node.invoice_features()).unwrap();
1818 $crate::get_route_and_payment_hash!($send_node, $recv_node, payment_params, $recv_value)
1820 ($send_node: expr, $recv_node: expr, $payment_params: expr, $recv_value: expr) => {{
1821 let (payment_preimage, payment_hash, payment_secret) =
1822 $crate::ln::functional_test_utils::get_payment_preimage_hash(&$recv_node, Some($recv_value), None);
1823 let route = $crate::ln::functional_test_utils::get_route(&$send_node, &$payment_params, $recv_value);
1824 (route.unwrap(), payment_hash, payment_preimage, payment_secret)
1828 pub fn check_payment_claimable(
1829 event: &Event, expected_payment_hash: PaymentHash, expected_payment_secret: PaymentSecret,
1830 expected_recv_value: u64, expected_payment_preimage: Option<PaymentPreimage>,
1831 expected_receiver_node_id: PublicKey,
1834 Event::PaymentClaimable { ref payment_hash, ref purpose, amount_msat, receiver_node_id, .. } => {
1835 assert_eq!(expected_payment_hash, *payment_hash);
1836 assert_eq!(expected_recv_value, *amount_msat);
1837 assert_eq!(expected_receiver_node_id, receiver_node_id.unwrap());
1839 PaymentPurpose::InvoicePayment { payment_preimage, payment_secret, .. } => {
1840 assert_eq!(&expected_payment_preimage, payment_preimage);
1841 assert_eq!(expected_payment_secret, *payment_secret);
1846 _ => panic!("Unexpected event"),
1851 #[cfg(any(test, ldk_bench, feature = "_test_utils"))]
1852 macro_rules! expect_payment_claimable {
1853 ($node: expr, $expected_payment_hash: expr, $expected_payment_secret: expr, $expected_recv_value: expr) => {
1854 expect_payment_claimable!($node, $expected_payment_hash, $expected_payment_secret, $expected_recv_value, None, $node.node.get_our_node_id())
1856 ($node: expr, $expected_payment_hash: expr, $expected_payment_secret: expr, $expected_recv_value: expr, $expected_payment_preimage: expr, $expected_receiver_node_id: expr) => {
1857 let events = $node.node.get_and_clear_pending_events();
1858 assert_eq!(events.len(), 1);
1859 $crate::ln::functional_test_utils::check_payment_claimable(&events[0], $expected_payment_hash, $expected_payment_secret, $expected_recv_value, $expected_payment_preimage, $expected_receiver_node_id)
1864 #[cfg(any(test, ldk_bench, feature = "_test_utils"))]
1865 macro_rules! expect_payment_claimed {
1866 ($node: expr, $expected_payment_hash: expr, $expected_recv_value: expr) => {
1867 let events = $node.node.get_and_clear_pending_events();
1868 assert_eq!(events.len(), 1);
1870 $crate::events::Event::PaymentClaimed { ref payment_hash, amount_msat, .. } => {
1871 assert_eq!($expected_payment_hash, *payment_hash);
1872 assert_eq!($expected_recv_value, amount_msat);
1874 _ => panic!("Unexpected event"),
1879 pub fn expect_payment_sent<CM: AChannelManager, H: NodeHolder<CM=CM>>(node: &H,
1880 expected_payment_preimage: PaymentPreimage, expected_fee_msat_opt: Option<Option<u64>>,
1881 expect_per_path_claims: bool,
1883 let events = node.node().get_and_clear_pending_events();
1884 let expected_payment_hash = PaymentHash(
1885 bitcoin::hashes::sha256::Hash::hash(&expected_payment_preimage.0).into_inner());
1886 if expect_per_path_claims {
1887 assert!(events.len() > 1);
1889 assert_eq!(events.len(), 1);
1891 let expected_payment_id = match events[0] {
1892 Event::PaymentSent { ref payment_id, ref payment_preimage, ref payment_hash, ref fee_paid_msat } => {
1893 assert_eq!(expected_payment_preimage, *payment_preimage);
1894 assert_eq!(expected_payment_hash, *payment_hash);
1895 if let Some(expected_fee_msat) = expected_fee_msat_opt {
1896 assert_eq!(*fee_paid_msat, expected_fee_msat);
1898 assert!(fee_paid_msat.is_some());
1902 _ => panic!("Unexpected event"),
1904 if expect_per_path_claims {
1905 for i in 1..events.len() {
1907 Event::PaymentPathSuccessful { payment_id, payment_hash, .. } => {
1908 assert_eq!(payment_id, expected_payment_id);
1909 assert_eq!(payment_hash, Some(expected_payment_hash));
1911 _ => panic!("Unexpected event"),
1919 macro_rules! expect_payment_sent_without_paths {
1920 ($node: expr, $expected_payment_preimage: expr) => {
1921 expect_payment_sent!($node, $expected_payment_preimage, None::<u64>, false);
1923 ($node: expr, $expected_payment_preimage: expr, $expected_fee_msat_opt: expr) => {
1924 expect_payment_sent!($node, $expected_payment_preimage, $expected_fee_msat_opt, false);
1929 macro_rules! expect_payment_sent {
1930 ($node: expr, $expected_payment_preimage: expr) => {
1931 $crate::expect_payment_sent!($node, $expected_payment_preimage, None::<u64>, true);
1933 ($node: expr, $expected_payment_preimage: expr, $expected_fee_msat_opt: expr) => {
1934 $crate::expect_payment_sent!($node, $expected_payment_preimage, $expected_fee_msat_opt, true);
1936 ($node: expr, $expected_payment_preimage: expr, $expected_fee_msat_opt: expr, $expect_paths: expr) => {
1937 $crate::ln::functional_test_utils::expect_payment_sent(&$node, $expected_payment_preimage,
1938 $expected_fee_msat_opt.map(|o| Some(o)), $expect_paths);
1944 macro_rules! expect_payment_path_successful {
1946 let events = $node.node.get_and_clear_pending_events();
1947 assert_eq!(events.len(), 1);
1949 $crate::events::Event::PaymentPathSuccessful { .. } => {},
1950 _ => panic!("Unexpected event"),
1955 macro_rules! expect_payment_forwarded {
1956 ($node: expr, $prev_node: expr, $next_node: expr, $expected_fee: expr, $upstream_force_closed: expr, $downstream_force_closed: expr) => {
1957 let events = $node.node.get_and_clear_pending_events();
1958 assert_eq!(events.len(), 1);
1960 Event::PaymentForwarded {
1961 fee_earned_msat, prev_channel_id, claim_from_onchain_tx, next_channel_id,
1962 outbound_amount_forwarded_msat: _
1964 assert_eq!(fee_earned_msat, $expected_fee);
1965 if fee_earned_msat.is_some() {
1966 // Is the event prev_channel_id in one of the channels between the two nodes?
1967 assert!($node.node.list_channels().iter().any(|x| x.counterparty.node_id == $prev_node.node.get_our_node_id() && x.channel_id == prev_channel_id.unwrap()));
1969 // We check for force closures since a force closed channel is removed from the
1970 // node's channel list
1971 if !$downstream_force_closed {
1972 assert!($node.node.list_channels().iter().any(|x| x.counterparty.node_id == $next_node.node.get_our_node_id() && x.channel_id == next_channel_id.unwrap()));
1974 assert_eq!(claim_from_onchain_tx, $downstream_force_closed);
1976 _ => panic!("Unexpected event"),
1983 macro_rules! expect_channel_shutdown_state {
1984 ($node: expr, $chan_id: expr, $state: path) => {
1985 let chan_details = $node.node.list_channels().into_iter().filter(|cd| cd.channel_id == $chan_id).collect::<Vec<ChannelDetails>>();
1986 assert_eq!(chan_details.len(), 1);
1987 assert_eq!(chan_details[0].channel_shutdown_state, Some($state));
1991 #[cfg(any(test, ldk_bench, feature = "_test_utils"))]
1992 pub fn expect_channel_pending_event<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, expected_counterparty_node_id: &PublicKey) {
1993 let events = node.node.get_and_clear_pending_events();
1994 assert_eq!(events.len(), 1);
1996 crate::events::Event::ChannelPending { ref counterparty_node_id, .. } => {
1997 assert_eq!(*expected_counterparty_node_id, *counterparty_node_id);
1999 _ => panic!("Unexpected event"),
2003 #[cfg(any(test, ldk_bench, feature = "_test_utils"))]
2004 pub fn expect_channel_ready_event<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, expected_counterparty_node_id: &PublicKey) {
2005 let events = node.node.get_and_clear_pending_events();
2006 assert_eq!(events.len(), 1);
2008 crate::events::Event::ChannelReady{ ref counterparty_node_id, .. } => {
2009 assert_eq!(*expected_counterparty_node_id, *counterparty_node_id);
2011 _ => panic!("Unexpected event"),
2015 pub struct PaymentFailedConditions<'a> {
2016 pub(crate) expected_htlc_error_data: Option<(u16, &'a [u8])>,
2017 pub(crate) expected_blamed_scid: Option<u64>,
2018 pub(crate) expected_blamed_chan_closed: Option<bool>,
2019 pub(crate) expected_mpp_parts_remain: bool,
2022 impl<'a> PaymentFailedConditions<'a> {
2023 pub fn new() -> Self {
2025 expected_htlc_error_data: None,
2026 expected_blamed_scid: None,
2027 expected_blamed_chan_closed: None,
2028 expected_mpp_parts_remain: false,
2031 pub fn mpp_parts_remain(mut self) -> Self {
2032 self.expected_mpp_parts_remain = true;
2035 pub fn blamed_scid(mut self, scid: u64) -> Self {
2036 self.expected_blamed_scid = Some(scid);
2039 pub fn blamed_chan_closed(mut self, closed: bool) -> Self {
2040 self.expected_blamed_chan_closed = Some(closed);
2043 pub fn expected_htlc_error_data(mut self, code: u16, data: &'a [u8]) -> Self {
2044 self.expected_htlc_error_data = Some((code, data));
2050 macro_rules! expect_payment_failed_with_update {
2051 ($node: expr, $expected_payment_hash: expr, $payment_failed_permanently: expr, $scid: expr, $chan_closed: expr) => {
2052 $crate::ln::functional_test_utils::expect_payment_failed_conditions(
2053 &$node, $expected_payment_hash, $payment_failed_permanently,
2054 $crate::ln::functional_test_utils::PaymentFailedConditions::new()
2055 .blamed_scid($scid).blamed_chan_closed($chan_closed));
2060 macro_rules! expect_payment_failed {
2061 ($node: expr, $expected_payment_hash: expr, $payment_failed_permanently: expr $(, $expected_error_code: expr, $expected_error_data: expr)*) => {
2062 #[allow(unused_mut)]
2063 let mut conditions = $crate::ln::functional_test_utils::PaymentFailedConditions::new();
2065 conditions = conditions.expected_htlc_error_data($expected_error_code, &$expected_error_data);
2067 $crate::ln::functional_test_utils::expect_payment_failed_conditions(&$node, $expected_payment_hash, $payment_failed_permanently, conditions);
2071 pub fn expect_payment_failed_conditions_event<'a, 'b, 'c, 'd, 'e>(
2072 payment_failed_events: Vec<Event>, expected_payment_hash: PaymentHash,
2073 expected_payment_failed_permanently: bool, conditions: PaymentFailedConditions<'e>
2075 if conditions.expected_mpp_parts_remain { assert_eq!(payment_failed_events.len(), 1); } else { assert_eq!(payment_failed_events.len(), 2); }
2076 let expected_payment_id = match &payment_failed_events[0] {
2077 Event::PaymentPathFailed { payment_hash, payment_failed_permanently, payment_id, failure,
2081 error_data, .. } => {
2082 assert_eq!(*payment_hash, expected_payment_hash, "unexpected payment_hash");
2083 assert_eq!(*payment_failed_permanently, expected_payment_failed_permanently, "unexpected payment_failed_permanently value");
2086 assert!(error_code.is_some(), "expected error_code.is_some() = true");
2087 assert!(error_data.is_some(), "expected error_data.is_some() = true");
2088 if let Some((code, data)) = conditions.expected_htlc_error_data {
2089 assert_eq!(error_code.unwrap(), code, "unexpected error code");
2090 assert_eq!(&error_data.as_ref().unwrap()[..], data, "unexpected error data");
2094 if let Some(chan_closed) = conditions.expected_blamed_chan_closed {
2095 if let PathFailure::OnPath { network_update: Some(upd) } = failure {
2097 NetworkUpdate::ChannelUpdateMessage { ref msg } if !chan_closed => {
2098 if let Some(scid) = conditions.expected_blamed_scid {
2099 assert_eq!(msg.contents.short_channel_id, scid);
2101 const CHAN_DISABLED_FLAG: u8 = 2;
2102 assert_eq!(msg.contents.flags & CHAN_DISABLED_FLAG, 0);
2104 NetworkUpdate::ChannelFailure { short_channel_id, is_permanent } if chan_closed => {
2105 if let Some(scid) = conditions.expected_blamed_scid {
2106 assert_eq!(*short_channel_id, scid);
2108 assert!(is_permanent);
2110 _ => panic!("Unexpected update type"),
2112 } else { panic!("Expected network update"); }
2117 _ => panic!("Unexpected event"),
2119 if !conditions.expected_mpp_parts_remain {
2120 match &payment_failed_events[1] {
2121 Event::PaymentFailed { ref payment_hash, ref payment_id, ref reason } => {
2122 assert_eq!(*payment_hash, expected_payment_hash, "unexpected second payment_hash");
2123 assert_eq!(*payment_id, expected_payment_id);
2124 assert_eq!(reason.unwrap(), if expected_payment_failed_permanently {
2125 PaymentFailureReason::RecipientRejected
2127 PaymentFailureReason::RetriesExhausted
2130 _ => panic!("Unexpected second event"),
2135 pub fn expect_payment_failed_conditions<'a, 'b, 'c, 'd, 'e>(
2136 node: &'a Node<'b, 'c, 'd>, expected_payment_hash: PaymentHash, expected_payment_failed_permanently: bool,
2137 conditions: PaymentFailedConditions<'e>
2139 let events = node.node.get_and_clear_pending_events();
2140 expect_payment_failed_conditions_event(events, expected_payment_hash, expected_payment_failed_permanently, conditions);
2143 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: PaymentSecret) -> PaymentId {
2144 let payment_id = PaymentId(origin_node.keys_manager.backing.get_secure_random_bytes());
2145 origin_node.node.send_payment_with_route(&route, our_payment_hash,
2146 RecipientOnionFields::secret_only(our_payment_secret), payment_id).unwrap();
2147 check_added_monitors!(origin_node, expected_paths.len());
2148 pass_along_route(origin_node, expected_paths, recv_value, our_payment_hash, our_payment_secret);
2152 pub fn do_pass_along_path<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_path: &[&Node<'a, 'b, 'c>], recv_value: u64, our_payment_hash: PaymentHash, our_payment_secret: Option<PaymentSecret>, ev: MessageSendEvent, payment_claimable_expected: bool, clear_recipient_events: bool, expected_preimage: Option<PaymentPreimage>) -> Option<Event> {
2153 let mut payment_event = SendEvent::from_event(ev);
2154 let mut prev_node = origin_node;
2155 let mut event = None;
2157 for (idx, &node) in expected_path.iter().enumerate() {
2158 assert_eq!(node.node.get_our_node_id(), payment_event.node_id);
2160 node.node.handle_update_add_htlc(&prev_node.node.get_our_node_id(), &payment_event.msgs[0]);
2161 check_added_monitors!(node, 0);
2162 commitment_signed_dance!(node, prev_node, payment_event.commitment_msg, false);
2164 expect_pending_htlcs_forwardable!(node);
2166 if idx == expected_path.len() - 1 && clear_recipient_events {
2167 let events_2 = node.node.get_and_clear_pending_events();
2168 if payment_claimable_expected {
2169 assert_eq!(events_2.len(), 1);
2170 match &events_2[0] {
2171 Event::PaymentClaimable { ref payment_hash, ref purpose, amount_msat,
2172 receiver_node_id, ref via_channel_id, ref via_user_channel_id,
2173 claim_deadline, onion_fields, ..
2175 assert_eq!(our_payment_hash, *payment_hash);
2176 assert_eq!(node.node.get_our_node_id(), receiver_node_id.unwrap());
2177 assert!(onion_fields.is_some());
2179 PaymentPurpose::InvoicePayment { payment_preimage, payment_secret, .. } => {
2180 assert_eq!(expected_preimage, *payment_preimage);
2181 assert_eq!(our_payment_secret.unwrap(), *payment_secret);
2182 assert_eq!(Some(*payment_secret), onion_fields.as_ref().unwrap().payment_secret);
2184 PaymentPurpose::SpontaneousPayment(payment_preimage) => {
2185 assert_eq!(expected_preimage.unwrap(), *payment_preimage);
2186 assert_eq!(our_payment_secret, onion_fields.as_ref().unwrap().payment_secret);
2189 assert_eq!(*amount_msat, recv_value);
2190 assert!(node.node.list_channels().iter().any(|details| details.channel_id == via_channel_id.unwrap()));
2191 assert!(node.node.list_channels().iter().any(|details| details.user_channel_id == via_user_channel_id.unwrap()));
2192 assert!(claim_deadline.unwrap() > node.best_block_info().1);
2194 _ => panic!("Unexpected event"),
2196 event = Some(events_2[0].clone());
2198 assert!(events_2.is_empty());
2200 } else if idx != expected_path.len() - 1 {
2201 let mut events_2 = node.node.get_and_clear_pending_msg_events();
2202 assert_eq!(events_2.len(), 1);
2203 check_added_monitors!(node, 1);
2204 payment_event = SendEvent::from_event(events_2.remove(0));
2205 assert_eq!(payment_event.msgs.len(), 1);
2213 pub fn pass_along_path<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_path: &[&Node<'a, 'b, 'c>], recv_value: u64, our_payment_hash: PaymentHash, our_payment_secret: Option<PaymentSecret>, ev: MessageSendEvent, payment_claimable_expected: bool, expected_preimage: Option<PaymentPreimage>) -> Option<Event> {
2214 do_pass_along_path(origin_node, expected_path, recv_value, our_payment_hash, our_payment_secret, ev, payment_claimable_expected, true, expected_preimage)
2217 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: PaymentSecret) {
2218 let mut events = origin_node.node.get_and_clear_pending_msg_events();
2219 assert_eq!(events.len(), expected_route.len());
2220 for (path_idx, expected_path) in expected_route.iter().enumerate() {
2221 let ev = remove_first_msg_event_to_node(&expected_path[0].node.get_our_node_id(), &mut events);
2222 // Once we've gotten through all the HTLCs, the last one should result in a
2223 // PaymentClaimable (but each previous one should not!), .
2224 let expect_payment = path_idx == expected_route.len() - 1;
2225 pass_along_path(origin_node, expected_path, recv_value, our_payment_hash.clone(), Some(our_payment_secret), ev, expect_payment, None);
2229 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, PaymentSecret, PaymentId) {
2230 let (our_payment_preimage, our_payment_hash, our_payment_secret) = get_payment_preimage_hash!(expected_route.last().unwrap());
2231 let payment_id = send_along_route_with_secret(origin_node, route, &[expected_route], recv_value, our_payment_hash, our_payment_secret);
2232 (our_payment_preimage, our_payment_hash, our_payment_secret, payment_id)
2235 pub fn do_claim_payment_along_route<'a, 'b, 'c>(
2236 origin_node: &Node<'a, 'b, 'c>, expected_paths: &[&[&Node<'a, 'b, 'c>]], skip_last: bool,
2237 our_payment_preimage: PaymentPreimage
2239 let extra_fees = vec![0; expected_paths.len()];
2240 do_claim_payment_along_route_with_extra_penultimate_hop_fees(origin_node, expected_paths,
2241 &extra_fees[..], skip_last, our_payment_preimage)
2244 pub fn do_claim_payment_along_route_with_extra_penultimate_hop_fees<'a, 'b, 'c>(
2245 origin_node: &Node<'a, 'b, 'c>, expected_paths: &[&[&Node<'a, 'b, 'c>]], expected_extra_fees:
2246 &[u32], skip_last: bool, our_payment_preimage: PaymentPreimage
2248 assert_eq!(expected_paths.len(), expected_extra_fees.len());
2249 for path in expected_paths.iter() {
2250 assert_eq!(path.last().unwrap().node.get_our_node_id(), expected_paths[0].last().unwrap().node.get_our_node_id());
2252 expected_paths[0].last().unwrap().node.claim_funds(our_payment_preimage);
2254 let claim_event = expected_paths[0].last().unwrap().node.get_and_clear_pending_events();
2255 assert_eq!(claim_event.len(), 1);
2256 match claim_event[0] {
2257 Event::PaymentClaimed { purpose: PaymentPurpose::SpontaneousPayment(preimage), .. }|
2258 Event::PaymentClaimed { purpose: PaymentPurpose::InvoicePayment { payment_preimage: Some(preimage), ..}, .. } =>
2259 assert_eq!(preimage, our_payment_preimage),
2260 Event::PaymentClaimed { purpose: PaymentPurpose::InvoicePayment { .. }, payment_hash, .. } =>
2261 assert_eq!(&payment_hash.0, &Sha256::hash(&our_payment_preimage.0)[..]),
2265 check_added_monitors!(expected_paths[0].last().unwrap(), expected_paths.len());
2267 let mut expected_total_fee_msat = 0;
2269 macro_rules! msgs_from_ev {
2272 &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 } } => {
2273 assert!(update_add_htlcs.is_empty());
2274 assert_eq!(update_fulfill_htlcs.len(), 1);
2275 assert!(update_fail_htlcs.is_empty());
2276 assert!(update_fail_malformed_htlcs.is_empty());
2277 assert!(update_fee.is_none());
2278 ((update_fulfill_htlcs[0].clone(), commitment_signed.clone()), node_id.clone())
2280 _ => panic!("Unexpected event"),
2284 let mut per_path_msgs: Vec<((msgs::UpdateFulfillHTLC, msgs::CommitmentSigned), PublicKey)> = Vec::with_capacity(expected_paths.len());
2285 let mut events = expected_paths[0].last().unwrap().node.get_and_clear_pending_msg_events();
2286 assert_eq!(events.len(), expected_paths.len());
2288 if events.len() == 1 {
2289 per_path_msgs.push(msgs_from_ev!(&events[0]));
2291 for expected_path in expected_paths.iter() {
2292 // For MPP payments, we always want the message to the first node in the path.
2293 let ev = remove_first_msg_event_to_node(&expected_path[0].node.get_our_node_id(), &mut events);
2294 per_path_msgs.push(msgs_from_ev!(&ev));
2298 for (i, (expected_route, (path_msgs, next_hop))) in expected_paths.iter().zip(per_path_msgs.drain(..)).enumerate() {
2299 let mut next_msgs = Some(path_msgs);
2300 let mut expected_next_node = next_hop;
2302 macro_rules! last_update_fulfill_dance {
2303 ($node: expr, $prev_node: expr) => {
2305 $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
2306 check_added_monitors!($node, 0);
2307 assert!($node.node.get_and_clear_pending_msg_events().is_empty());
2308 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, false);
2312 macro_rules! mid_update_fulfill_dance {
2313 ($idx: expr, $node: expr, $prev_node: expr, $next_node: expr, $new_msgs: expr) => {
2315 $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
2317 let per_peer_state = $node.node.per_peer_state.read().unwrap();
2318 let peer_state = per_peer_state.get(&$prev_node.node.get_our_node_id())
2319 .unwrap().lock().unwrap();
2320 let channel = peer_state.channel_by_id.get(&next_msgs.as_ref().unwrap().0.channel_id).unwrap();
2321 if let Some(prev_config) = channel.context.prev_config() {
2322 prev_config.forwarding_fee_base_msat
2324 channel.context.config().forwarding_fee_base_msat
2327 if $idx == 1 { fee += expected_extra_fees[i]; }
2328 expect_payment_forwarded!($node, $next_node, $prev_node, Some(fee as u64), false, false);
2329 expected_total_fee_msat += fee as u64;
2330 check_added_monitors!($node, 1);
2331 let new_next_msgs = if $new_msgs {
2332 let events = $node.node.get_and_clear_pending_msg_events();
2333 assert_eq!(events.len(), 1);
2334 let (res, nexthop) = msgs_from_ev!(&events[0]);
2335 expected_next_node = nexthop;
2338 assert!($node.node.get_and_clear_pending_msg_events().is_empty());
2341 commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, false);
2342 next_msgs = new_next_msgs;
2347 let mut prev_node = expected_route.last().unwrap();
2348 for (idx, node) in expected_route.iter().rev().enumerate().skip(1) {
2349 assert_eq!(expected_next_node, node.node.get_our_node_id());
2350 let update_next_msgs = !skip_last || idx != expected_route.len() - 1;
2351 if next_msgs.is_some() {
2352 // Since we are traversing in reverse, next_node is actually the previous node
2353 let next_node: &Node;
2354 if idx == expected_route.len() - 1 {
2355 next_node = origin_node;
2357 next_node = expected_route[expected_route.len() - 1 - idx - 1];
2359 mid_update_fulfill_dance!(idx, node, prev_node, next_node, update_next_msgs);
2361 assert!(!update_next_msgs);
2362 assert!(node.node.get_and_clear_pending_msg_events().is_empty());
2364 if !skip_last && idx == expected_route.len() - 1 {
2365 assert_eq!(expected_next_node, origin_node.node.get_our_node_id());
2372 last_update_fulfill_dance!(origin_node, expected_route.first().unwrap());
2376 // Ensure that claim_funds is idempotent.
2377 expected_paths[0].last().unwrap().node.claim_funds(our_payment_preimage);
2378 assert!(expected_paths[0].last().unwrap().node.get_and_clear_pending_msg_events().is_empty());
2379 check_added_monitors!(expected_paths[0].last().unwrap(), 0);
2381 expected_total_fee_msat
2383 pub fn claim_payment_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_paths: &[&[&Node<'a, 'b, 'c>]], skip_last: bool, our_payment_preimage: PaymentPreimage) {
2384 let expected_total_fee_msat = do_claim_payment_along_route(origin_node, expected_paths, skip_last, our_payment_preimage);
2386 expect_payment_sent!(origin_node, our_payment_preimage, Some(expected_total_fee_msat));
2390 pub fn claim_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], our_payment_preimage: PaymentPreimage) {
2391 claim_payment_along_route(origin_node, &[expected_route], false, our_payment_preimage);
2394 pub const TEST_FINAL_CLTV: u32 = 70;
2396 pub fn route_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) -> (PaymentPreimage, PaymentHash, PaymentSecret) {
2397 let payment_params = PaymentParameters::from_node_id(expected_route.last().unwrap().node.get_our_node_id(), TEST_FINAL_CLTV)
2398 .with_bolt11_features(expected_route.last().unwrap().node.invoice_features()).unwrap();
2399 let route = get_route(origin_node, &payment_params, recv_value).unwrap();
2400 assert_eq!(route.paths.len(), 1);
2401 assert_eq!(route.paths[0].hops.len(), expected_route.len());
2402 for (node, hop) in expected_route.iter().zip(route.paths[0].hops.iter()) {
2403 assert_eq!(hop.pubkey, node.node.get_our_node_id());
2406 let res = send_along_route(origin_node, route, expected_route, recv_value);
2407 (res.0, res.1, res.2)
2410 pub fn route_over_limit<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) {
2411 let payment_params = PaymentParameters::from_node_id(expected_route.last().unwrap().node.get_our_node_id(), TEST_FINAL_CLTV)
2412 .with_bolt11_features(expected_route.last().unwrap().node.invoice_features()).unwrap();
2413 let network_graph = origin_node.network_graph.read_only();
2414 let scorer = test_utils::TestScorer::new();
2415 let seed = [0u8; 32];
2416 let keys_manager = test_utils::TestKeysInterface::new(&seed, Network::Testnet);
2417 let random_seed_bytes = keys_manager.get_secure_random_bytes();
2418 let route = router::get_route(
2419 &origin_node.node.get_our_node_id(), &payment_params, &network_graph,
2420 None, recv_value, origin_node.logger, &scorer, &Default::default(), &random_seed_bytes).unwrap();
2421 assert_eq!(route.paths.len(), 1);
2422 assert_eq!(route.paths[0].hops.len(), expected_route.len());
2423 for (node, hop) in expected_route.iter().zip(route.paths[0].hops.iter()) {
2424 assert_eq!(hop.pubkey, node.node.get_our_node_id());
2427 let (_, our_payment_hash, our_payment_secret) = get_payment_preimage_hash!(expected_route.last().unwrap());
2428 unwrap_send_err!(origin_node.node.send_payment_with_route(&route, our_payment_hash,
2429 RecipientOnionFields::secret_only(our_payment_secret), PaymentId(our_payment_hash.0)),
2430 true, APIError::ChannelUnavailable { ref err },
2431 assert!(err.contains("Cannot send value that would put us over the max HTLC value in flight our peer will accept")));
2434 pub fn send_payment<'a, 'b, 'c>(origin: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) -> (PaymentPreimage, PaymentHash, PaymentSecret) {
2435 let res = route_payment(&origin, expected_route, recv_value);
2436 claim_payment(&origin, expected_route, res.0);
2440 pub fn fail_payment_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_paths: &[&[&Node<'a, 'b, 'c>]], skip_last: bool, our_payment_hash: PaymentHash) {
2441 for path in expected_paths.iter() {
2442 assert_eq!(path.last().unwrap().node.get_our_node_id(), expected_paths[0].last().unwrap().node.get_our_node_id());
2444 expected_paths[0].last().unwrap().node.fail_htlc_backwards(&our_payment_hash);
2445 let expected_destinations: Vec<HTLCDestination> = repeat(HTLCDestination::FailedPayment { payment_hash: our_payment_hash }).take(expected_paths.len()).collect();
2446 expect_pending_htlcs_forwardable_and_htlc_handling_failed!(expected_paths[0].last().unwrap(), expected_destinations);
2448 pass_failed_payment_back(origin_node, expected_paths, skip_last, our_payment_hash, PaymentFailureReason::RecipientRejected);
2451 pub fn pass_failed_payment_back<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_paths_slice: &[&[&Node<'a, 'b, 'c>]], skip_last: bool, our_payment_hash: PaymentHash, expected_fail_reason: PaymentFailureReason) {
2452 let mut expected_paths: Vec<_> = expected_paths_slice.iter().collect();
2453 check_added_monitors!(expected_paths[0].last().unwrap(), expected_paths.len());
2455 let mut per_path_msgs: Vec<((msgs::UpdateFailHTLC, msgs::CommitmentSigned), PublicKey)> = Vec::with_capacity(expected_paths.len());
2456 let events = expected_paths[0].last().unwrap().node.get_and_clear_pending_msg_events();
2457 assert_eq!(events.len(), expected_paths.len());
2458 for ev in events.iter() {
2459 let (update_fail, commitment_signed, node_id) = match ev {
2460 &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 } } => {
2461 assert!(update_add_htlcs.is_empty());
2462 assert!(update_fulfill_htlcs.is_empty());
2463 assert_eq!(update_fail_htlcs.len(), 1);
2464 assert!(update_fail_malformed_htlcs.is_empty());
2465 assert!(update_fee.is_none());
2466 (update_fail_htlcs[0].clone(), commitment_signed.clone(), node_id.clone())
2468 _ => panic!("Unexpected event"),
2470 per_path_msgs.push(((update_fail, commitment_signed), node_id));
2472 per_path_msgs.sort_unstable_by(|(_, node_id_a), (_, node_id_b)| node_id_a.cmp(node_id_b));
2473 expected_paths.sort_unstable_by(|path_a, path_b| path_a[path_a.len() - 2].node.get_our_node_id().cmp(&path_b[path_b.len() - 2].node.get_our_node_id()));
2475 for (i, (expected_route, (path_msgs, next_hop))) in expected_paths.iter().zip(per_path_msgs.drain(..)).enumerate() {
2476 let mut next_msgs = Some(path_msgs);
2477 let mut expected_next_node = next_hop;
2478 let mut prev_node = expected_route.last().unwrap();
2480 for (idx, node) in expected_route.iter().rev().enumerate().skip(1) {
2481 assert_eq!(expected_next_node, node.node.get_our_node_id());
2482 let update_next_node = !skip_last || idx != expected_route.len() - 1;
2483 if next_msgs.is_some() {
2484 node.node.handle_update_fail_htlc(&prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
2485 commitment_signed_dance!(node, prev_node, next_msgs.as_ref().unwrap().1, update_next_node);
2486 if !update_next_node {
2487 expect_pending_htlcs_forwardable_and_htlc_handling_failed!(node, vec![HTLCDestination::NextHopChannel { node_id: Some(prev_node.node.get_our_node_id()), channel_id: next_msgs.as_ref().unwrap().0.channel_id }]);
2490 let events = node.node.get_and_clear_pending_msg_events();
2491 if update_next_node {
2492 assert_eq!(events.len(), 1);
2494 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 } } => {
2495 assert!(update_add_htlcs.is_empty());
2496 assert!(update_fulfill_htlcs.is_empty());
2497 assert_eq!(update_fail_htlcs.len(), 1);
2498 assert!(update_fail_malformed_htlcs.is_empty());
2499 assert!(update_fee.is_none());
2500 expected_next_node = node_id.clone();
2501 next_msgs = Some((update_fail_htlcs[0].clone(), commitment_signed.clone()));
2503 _ => panic!("Unexpected event"),
2506 assert!(events.is_empty());
2508 if !skip_last && idx == expected_route.len() - 1 {
2509 assert_eq!(expected_next_node, origin_node.node.get_our_node_id());
2516 let prev_node = expected_route.first().unwrap();
2517 origin_node.node.handle_update_fail_htlc(&prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
2518 check_added_monitors!(origin_node, 0);
2519 assert!(origin_node.node.get_and_clear_pending_msg_events().is_empty());
2520 commitment_signed_dance!(origin_node, prev_node, next_msgs.as_ref().unwrap().1, false);
2521 let events = origin_node.node.get_and_clear_pending_events();
2522 if i == expected_paths.len() - 1 { assert_eq!(events.len(), 2); } else { assert_eq!(events.len(), 1); }
2524 let expected_payment_id = match events[0] {
2525 Event::PaymentPathFailed { payment_hash, payment_failed_permanently, ref path, ref payment_id, .. } => {
2526 assert_eq!(payment_hash, our_payment_hash);
2527 assert!(payment_failed_permanently);
2528 for (idx, hop) in expected_route.iter().enumerate() {
2529 assert_eq!(hop.node.get_our_node_id(), path.hops[idx].pubkey);
2533 _ => panic!("Unexpected event"),
2535 if i == expected_paths.len() - 1 {
2537 Event::PaymentFailed { ref payment_hash, ref payment_id, ref reason } => {
2538 assert_eq!(*payment_hash, our_payment_hash, "unexpected second payment_hash");
2539 assert_eq!(*payment_id, expected_payment_id);
2540 assert_eq!(reason.unwrap(), expected_fail_reason);
2542 _ => panic!("Unexpected second event"),
2548 // Ensure that fail_htlc_backwards is idempotent.
2549 expected_paths[0].last().unwrap().node.fail_htlc_backwards(&our_payment_hash);
2550 assert!(expected_paths[0].last().unwrap().node.get_and_clear_pending_events().is_empty());
2551 assert!(expected_paths[0].last().unwrap().node.get_and_clear_pending_msg_events().is_empty());
2552 check_added_monitors!(expected_paths[0].last().unwrap(), 0);
2555 pub fn fail_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_path: &[&Node<'a, 'b, 'c>], our_payment_hash: PaymentHash) {
2556 fail_payment_along_route(origin_node, &[&expected_path[..]], false, our_payment_hash);
2559 pub fn create_chanmon_cfgs(node_count: usize) -> Vec<TestChanMonCfg> {
2560 let mut chan_mon_cfgs = Vec::new();
2561 for i in 0..node_count {
2562 let tx_broadcaster = test_utils::TestBroadcaster::new(Network::Testnet);
2563 let fee_estimator = test_utils::TestFeeEstimator { sat_per_kw: Mutex::new(253) };
2564 let chain_source = test_utils::TestChainSource::new(Network::Testnet);
2565 let logger = test_utils::TestLogger::with_id(format!("node {}", i));
2566 let persister = test_utils::TestPersister::new();
2567 let seed = [i as u8; 32];
2568 let keys_manager = test_utils::TestKeysInterface::new(&seed, Network::Testnet);
2569 let scorer = Mutex::new(test_utils::TestScorer::new());
2571 chan_mon_cfgs.push(TestChanMonCfg { tx_broadcaster, fee_estimator, chain_source, logger, persister, keys_manager, scorer });
2577 pub fn create_node_cfgs<'a>(node_count: usize, chanmon_cfgs: &'a Vec<TestChanMonCfg>) -> Vec<NodeCfg<'a>> {
2578 let mut nodes = Vec::new();
2580 for i in 0..node_count {
2581 let chain_monitor = test_utils::TestChainMonitor::new(Some(&chanmon_cfgs[i].chain_source), &chanmon_cfgs[i].tx_broadcaster, &chanmon_cfgs[i].logger, &chanmon_cfgs[i].fee_estimator, &chanmon_cfgs[i].persister, &chanmon_cfgs[i].keys_manager);
2582 let network_graph = Arc::new(NetworkGraph::new(Network::Testnet, &chanmon_cfgs[i].logger));
2583 let seed = [i as u8; 32];
2584 nodes.push(NodeCfg {
2585 chain_source: &chanmon_cfgs[i].chain_source,
2586 logger: &chanmon_cfgs[i].logger,
2587 tx_broadcaster: &chanmon_cfgs[i].tx_broadcaster,
2588 fee_estimator: &chanmon_cfgs[i].fee_estimator,
2589 router: test_utils::TestRouter::new(network_graph.clone(), &chanmon_cfgs[i].scorer),
2591 keys_manager: &chanmon_cfgs[i].keys_manager,
2594 override_init_features: Rc::new(RefCell::new(None)),
2601 pub fn test_default_channel_config() -> UserConfig {
2602 let mut default_config = UserConfig::default();
2603 // Set cltv_expiry_delta slightly lower to keep the final CLTV values inside one byte in our
2604 // tests so that our script-length checks don't fail (see ACCEPTED_HTLC_SCRIPT_WEIGHT).
2605 default_config.channel_config.cltv_expiry_delta = MIN_CLTV_EXPIRY_DELTA;
2606 default_config.channel_handshake_config.announced_channel = true;
2607 default_config.channel_handshake_limits.force_announced_channel_preference = false;
2608 // When most of our tests were written, the default HTLC minimum was fixed at 1000.
2609 // It now defaults to 1, so we simply set it to the expected value here.
2610 default_config.channel_handshake_config.our_htlc_minimum_msat = 1000;
2611 // When most of our tests were written, we didn't have the notion of a `max_dust_htlc_exposure_msat`,
2612 // to avoid interfering with tests we bump it to 50_000_000 msat (assuming the default test
2614 default_config.channel_config.max_dust_htlc_exposure =
2615 MaxDustHTLCExposure::FeeRateMultiplier(50_000_000 / 253);
2619 pub fn create_node_chanmgrs<'a, 'b>(node_count: usize, cfgs: &'a Vec<NodeCfg<'b>>, node_config: &[Option<UserConfig>]) -> Vec<ChannelManager<&'a TestChainMonitor<'b>, &'b test_utils::TestBroadcaster, &'a test_utils::TestKeysInterface, &'a test_utils::TestKeysInterface, &'a test_utils::TestKeysInterface, &'b test_utils::TestFeeEstimator, &'a test_utils::TestRouter<'b>, &'b test_utils::TestLogger>> {
2620 let mut chanmgrs = Vec::new();
2621 for i in 0..node_count {
2622 let network = Network::Testnet;
2623 let genesis_block = bitcoin::blockdata::constants::genesis_block(network);
2624 let params = ChainParameters {
2626 best_block: BestBlock::from_network(network),
2628 let node = ChannelManager::new(cfgs[i].fee_estimator, &cfgs[i].chain_monitor, cfgs[i].tx_broadcaster, &cfgs[i].router, cfgs[i].logger, cfgs[i].keys_manager,
2629 cfgs[i].keys_manager, cfgs[i].keys_manager, if node_config[i].is_some() { node_config[i].clone().unwrap() } else { test_default_channel_config() }, params, genesis_block.header.time);
2630 chanmgrs.push(node);
2636 pub fn create_network<'a, 'b: 'a, 'c: 'b>(node_count: usize, cfgs: &'b Vec<NodeCfg<'c>>, chan_mgrs: &'a Vec<ChannelManager<&'b TestChainMonitor<'c>, &'c test_utils::TestBroadcaster, &'b test_utils::TestKeysInterface, &'b test_utils::TestKeysInterface, &'b test_utils::TestKeysInterface, &'c test_utils::TestFeeEstimator, &'c test_utils::TestRouter, &'c test_utils::TestLogger>>) -> Vec<Node<'a, 'b, 'c>> {
2637 let mut nodes = Vec::new();
2638 let chan_count = Rc::new(RefCell::new(0));
2639 let payment_count = Rc::new(RefCell::new(0));
2640 let connect_style = Rc::new(RefCell::new(ConnectStyle::random_style()));
2642 for i in 0..node_count {
2643 let gossip_sync = P2PGossipSync::new(cfgs[i].network_graph.as_ref(), None, cfgs[i].logger);
2644 let wallet_source = Arc::new(test_utils::TestWalletSource::new(SecretKey::from_slice(&[i as u8 + 1; 32]).unwrap()));
2646 chain_source: cfgs[i].chain_source, tx_broadcaster: cfgs[i].tx_broadcaster,
2647 fee_estimator: cfgs[i].fee_estimator, router: &cfgs[i].router,
2648 chain_monitor: &cfgs[i].chain_monitor, keys_manager: &cfgs[i].keys_manager,
2649 node: &chan_mgrs[i], network_graph: cfgs[i].network_graph.as_ref(), gossip_sync,
2650 node_seed: cfgs[i].node_seed, network_chan_count: chan_count.clone(),
2651 network_payment_count: payment_count.clone(), logger: cfgs[i].logger,
2652 blocks: Arc::clone(&cfgs[i].tx_broadcaster.blocks),
2653 connect_style: Rc::clone(&connect_style),
2654 override_init_features: Rc::clone(&cfgs[i].override_init_features),
2655 wallet_source: Arc::clone(&wallet_source),
2656 bump_tx_handler: BumpTransactionEventHandler::new(
2657 cfgs[i].tx_broadcaster, Arc::new(Wallet::new(Arc::clone(&wallet_source), cfgs[i].logger)),
2658 &cfgs[i].keys_manager, cfgs[i].logger,
2663 for i in 0..node_count {
2664 for j in (i+1)..node_count {
2665 nodes[i].node.peer_connected(&nodes[j].node.get_our_node_id(), &msgs::Init {
2666 features: nodes[j].override_init_features.borrow().clone().unwrap_or_else(|| nodes[j].node.init_features()),
2668 remote_network_address: None,
2670 nodes[j].node.peer_connected(&nodes[i].node.get_our_node_id(), &msgs::Init {
2671 features: nodes[i].override_init_features.borrow().clone().unwrap_or_else(|| nodes[i].node.init_features()),
2673 remote_network_address: None,
2681 // Note that the following only works for CLTV values up to 128
2682 pub const ACCEPTED_HTLC_SCRIPT_WEIGHT: usize = 137; //Here we have a diff due to HTLC CLTV expiry being < 2^15 in test
2684 #[derive(PartialEq)]
2685 pub enum HTLCType { NONE, TIMEOUT, SUCCESS }
2686 /// Tests that the given node has broadcast transactions for the given Channel
2688 /// First checks that the latest holder commitment tx has been broadcast, unless an explicit
2689 /// commitment_tx is provided, which may be used to test that a remote commitment tx was
2690 /// broadcast and the revoked outputs were claimed.
2692 /// Next tests that there is (or is not) a transaction that spends the commitment transaction
2693 /// that appears to be the type of HTLC transaction specified in has_htlc_tx.
2695 /// All broadcast transactions must be accounted for in one of the above three types of we'll
2697 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> {
2698 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
2699 let mut txn_seen = HashSet::new();
2700 node_txn.retain(|tx| txn_seen.insert(tx.txid()));
2701 assert!(node_txn.len() >= if commitment_tx.is_some() { 0 } else { 1 } + if has_htlc_tx == HTLCType::NONE { 0 } else { 1 });
2703 let mut res = Vec::with_capacity(2);
2704 node_txn.retain(|tx| {
2705 if tx.input.len() == 1 && tx.input[0].previous_output.txid == chan.3.txid() {
2706 check_spends!(tx, chan.3);
2707 if commitment_tx.is_none() {
2708 res.push(tx.clone());
2713 if let Some(explicit_tx) = commitment_tx {
2714 res.push(explicit_tx.clone());
2717 assert_eq!(res.len(), 1);
2719 if has_htlc_tx != HTLCType::NONE {
2720 node_txn.retain(|tx| {
2721 if tx.input.len() == 1 && tx.input[0].previous_output.txid == res[0].txid() {
2722 check_spends!(tx, res[0]);
2723 if has_htlc_tx == HTLCType::TIMEOUT {
2724 assert!(tx.lock_time.0 != 0);
2726 assert!(tx.lock_time.0 == 0);
2728 res.push(tx.clone());
2732 assert!(res.len() == 2 || res.len() == 3);
2734 assert_eq!(res[1], res[2]);
2738 assert!(node_txn.is_empty());
2742 /// Tests that the given node has broadcast a claim transaction against the provided revoked
2743 /// HTLC transaction.
2744 pub fn test_revoked_htlc_claim_txn_broadcast<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, revoked_tx: Transaction, commitment_revoked_tx: Transaction) {
2745 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
2746 // We may issue multiple claiming transaction on revoked outputs due to block rescan
2747 // for revoked htlc outputs
2748 if node_txn.len() != 1 && node_txn.len() != 2 && node_txn.len() != 3 { assert!(false); }
2749 node_txn.retain(|tx| {
2750 if tx.input.len() == 1 && tx.input[0].previous_output.txid == revoked_tx.txid() {
2751 check_spends!(tx, revoked_tx);
2755 node_txn.retain(|tx| {
2756 check_spends!(tx, commitment_revoked_tx);
2759 assert!(node_txn.is_empty());
2762 pub fn check_preimage_claim<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, prev_txn: &Vec<Transaction>) -> Vec<Transaction> {
2763 let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
2764 let mut txn_seen = HashSet::new();
2765 node_txn.retain(|tx| txn_seen.insert(tx.txid()));
2767 let mut found_prev = false;
2768 for prev_tx in prev_txn {
2769 for tx in &*node_txn {
2770 if tx.input[0].previous_output.txid == prev_tx.txid() {
2771 check_spends!(tx, prev_tx);
2772 let mut iter = tx.input[0].witness.iter();
2773 iter.next().expect("expected 3 witness items");
2774 iter.next().expect("expected 3 witness items");
2775 assert!(iter.next().expect("expected 3 witness items").len() > 106); // must spend an htlc output
2776 assert_eq!(tx.input.len(), 1); // must spend a commitment tx
2783 assert!(found_prev);
2785 let mut res = Vec::new();
2786 mem::swap(&mut *node_txn, &mut res);
2790 pub fn handle_announce_close_broadcast_events<'a, 'b, 'c>(nodes: &Vec<Node<'a, 'b, 'c>>, a: usize, b: usize, needs_err_handle: bool, expected_error: &str) {
2791 let events_1 = nodes[a].node.get_and_clear_pending_msg_events();
2792 assert_eq!(events_1.len(), 2);
2793 let as_update = match events_1[0] {
2794 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
2797 _ => panic!("Unexpected event"),
2800 MessageSendEvent::HandleError { node_id, action: msgs::ErrorAction::SendErrorMessage { ref msg } } => {
2801 assert_eq!(node_id, nodes[b].node.get_our_node_id());
2802 assert_eq!(msg.data, expected_error);
2803 if needs_err_handle {
2804 nodes[b].node.handle_error(&nodes[a].node.get_our_node_id(), msg);
2807 _ => panic!("Unexpected event"),
2810 let events_2 = nodes[b].node.get_and_clear_pending_msg_events();
2811 assert_eq!(events_2.len(), if needs_err_handle { 1 } else { 2 });
2812 let bs_update = match events_2[0] {
2813 MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
2816 _ => panic!("Unexpected event"),
2818 if !needs_err_handle {
2820 MessageSendEvent::HandleError { node_id, action: msgs::ErrorAction::SendErrorMessage { ref msg } } => {
2821 assert_eq!(node_id, nodes[a].node.get_our_node_id());
2822 assert_eq!(msg.data, expected_error);
2824 _ => panic!("Unexpected event"),
2829 node.gossip_sync.handle_channel_update(&as_update).unwrap();
2830 node.gossip_sync.handle_channel_update(&bs_update).unwrap();
2834 pub fn get_announce_close_broadcast_events<'a, 'b, 'c>(nodes: &Vec<Node<'a, 'b, 'c>>, a: usize, b: usize) {
2835 handle_announce_close_broadcast_events(nodes, a, b, false, "Channel closed because commitment or closing transaction was confirmed on chain.");
2839 macro_rules! get_channel_value_stat {
2840 ($node: expr, $counterparty_node: expr, $channel_id: expr) => {{
2841 let peer_state_lock = $node.node.per_peer_state.read().unwrap();
2842 let chan_lock = peer_state_lock.get(&$counterparty_node.node.get_our_node_id()).unwrap().lock().unwrap();
2843 let chan = chan_lock.channel_by_id.get(&$channel_id).unwrap();
2844 chan.get_value_stat()
2848 macro_rules! get_chan_reestablish_msgs {
2849 ($src_node: expr, $dst_node: expr) => {
2851 let mut announcements = $crate::prelude::HashSet::new();
2852 let mut res = Vec::with_capacity(1);
2853 for msg in $src_node.node.get_and_clear_pending_msg_events() {
2854 if let MessageSendEvent::SendChannelReestablish { ref node_id, ref msg } = msg {
2855 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2856 res.push(msg.clone());
2857 } else if let MessageSendEvent::SendChannelAnnouncement { ref node_id, ref msg, .. } = msg {
2858 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2859 announcements.insert(msg.contents.short_channel_id);
2861 panic!("Unexpected event")
2864 assert!(announcements.is_empty());
2870 macro_rules! handle_chan_reestablish_msgs {
2871 ($src_node: expr, $dst_node: expr) => {
2873 let msg_events = $src_node.node.get_and_clear_pending_msg_events();
2875 let channel_ready = if let Some(&MessageSendEvent::SendChannelReady { ref node_id, ref msg }) = msg_events.get(0) {
2877 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2883 if let Some(&MessageSendEvent::SendAnnouncementSignatures { ref node_id, msg: _ }) = msg_events.get(idx) {
2885 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2888 let mut had_channel_update = false; // ChannelUpdate may be now or later, but not both
2889 if let Some(&MessageSendEvent::SendChannelUpdate { ref node_id, .. }) = msg_events.get(idx) {
2890 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2892 had_channel_update = true;
2895 let mut revoke_and_ack = None;
2896 let mut commitment_update = None;
2897 let order = if let Some(ev) = msg_events.get(idx) {
2899 &MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
2900 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2901 revoke_and_ack = Some(msg.clone());
2903 RAACommitmentOrder::RevokeAndACKFirst
2905 &MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
2906 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2907 commitment_update = Some(updates.clone());
2909 RAACommitmentOrder::CommitmentFirst
2911 _ => RAACommitmentOrder::CommitmentFirst,
2914 RAACommitmentOrder::CommitmentFirst
2917 if let Some(ev) = msg_events.get(idx) {
2919 &MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
2920 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2921 assert!(revoke_and_ack.is_none());
2922 revoke_and_ack = Some(msg.clone());
2925 &MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
2926 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2927 assert!(commitment_update.is_none());
2928 commitment_update = Some(updates.clone());
2935 if let Some(&MessageSendEvent::SendChannelUpdate { ref node_id, .. }) = msg_events.get(idx) {
2936 assert_eq!(*node_id, $dst_node.node.get_our_node_id());
2938 assert!(!had_channel_update);
2941 assert_eq!(msg_events.len(), idx);
2943 (channel_ready, revoke_and_ack, commitment_update, order)
2948 /// pending_htlc_adds includes both the holding cell and in-flight update_add_htlcs, whereas
2949 /// for claims/fails they are separated out.
2950 pub fn reconnect_nodes<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a, 'b, 'c>, send_channel_ready: (bool, bool), pending_htlc_adds: (i64, i64), pending_htlc_claims: (usize, usize), pending_htlc_fails: (usize, usize), pending_cell_htlc_claims: (usize, usize), pending_cell_htlc_fails: (usize, usize), pending_raa: (bool, bool)) {
2951 node_a.node.peer_connected(&node_b.node.get_our_node_id(), &msgs::Init {
2952 features: node_b.node.init_features(), networks: None, remote_network_address: None
2954 let reestablish_1 = get_chan_reestablish_msgs!(node_a, node_b);
2955 node_b.node.peer_connected(&node_a.node.get_our_node_id(), &msgs::Init {
2956 features: node_a.node.init_features(), networks: None, remote_network_address: None
2958 let reestablish_2 = get_chan_reestablish_msgs!(node_b, node_a);
2960 if send_channel_ready.0 {
2961 // If a expects a channel_ready, it better not think it has received a revoke_and_ack
2963 for reestablish in reestablish_1.iter() {
2964 assert_eq!(reestablish.next_remote_commitment_number, 0);
2967 if send_channel_ready.1 {
2968 // If b expects a channel_ready, it better not think it has received a revoke_and_ack
2970 for reestablish in reestablish_2.iter() {
2971 assert_eq!(reestablish.next_remote_commitment_number, 0);
2974 if send_channel_ready.0 || send_channel_ready.1 {
2975 // If we expect any channel_ready's, both sides better have set
2976 // next_holder_commitment_number to 1
2977 for reestablish in reestablish_1.iter() {
2978 assert_eq!(reestablish.next_local_commitment_number, 1);
2980 for reestablish in reestablish_2.iter() {
2981 assert_eq!(reestablish.next_local_commitment_number, 1);
2985 let mut resp_1 = Vec::new();
2986 for msg in reestablish_1 {
2987 node_b.node.handle_channel_reestablish(&node_a.node.get_our_node_id(), &msg);
2988 resp_1.push(handle_chan_reestablish_msgs!(node_b, node_a));
2990 if pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 {
2991 check_added_monitors!(node_b, 1);
2993 check_added_monitors!(node_b, 0);
2996 let mut resp_2 = Vec::new();
2997 for msg in reestablish_2 {
2998 node_a.node.handle_channel_reestablish(&node_b.node.get_our_node_id(), &msg);
2999 resp_2.push(handle_chan_reestablish_msgs!(node_a, node_b));
3001 if pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 {
3002 check_added_monitors!(node_a, 1);
3004 check_added_monitors!(node_a, 0);
3007 // We don't yet support both needing updates, as that would require a different commitment dance:
3008 assert!((pending_htlc_adds.0 == 0 && pending_htlc_claims.0 == 0 && pending_htlc_fails.0 == 0 &&
3009 pending_cell_htlc_claims.0 == 0 && pending_cell_htlc_fails.0 == 0) ||
3010 (pending_htlc_adds.1 == 0 && pending_htlc_claims.1 == 0 && pending_htlc_fails.1 == 0 &&
3011 pending_cell_htlc_claims.1 == 0 && pending_cell_htlc_fails.1 == 0));
3013 for chan_msgs in resp_1.drain(..) {
3014 if send_channel_ready.0 {
3015 node_a.node.handle_channel_ready(&node_b.node.get_our_node_id(), &chan_msgs.0.unwrap());
3016 let announcement_event = node_a.node.get_and_clear_pending_msg_events();
3017 if !announcement_event.is_empty() {
3018 assert_eq!(announcement_event.len(), 1);
3019 if let MessageSendEvent::SendChannelUpdate { .. } = announcement_event[0] {
3020 //TODO: Test announcement_sigs re-sending
3021 } else { panic!("Unexpected event! {:?}", announcement_event[0]); }
3024 assert!(chan_msgs.0.is_none());
3027 assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst);
3028 node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &chan_msgs.1.unwrap());
3029 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
3030 check_added_monitors!(node_a, 1);
3032 assert!(chan_msgs.1.is_none());
3034 if pending_htlc_adds.0 != 0 || pending_htlc_claims.0 != 0 || pending_htlc_fails.0 != 0 || pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 {
3035 let commitment_update = chan_msgs.2.unwrap();
3036 if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed
3037 assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.0 as usize);
3039 assert!(commitment_update.update_add_htlcs.is_empty());
3041 assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.0 + pending_cell_htlc_claims.0);
3042 assert_eq!(commitment_update.update_fail_htlcs.len(), pending_htlc_fails.0 + pending_cell_htlc_fails.0);
3043 assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
3044 for update_add in commitment_update.update_add_htlcs {
3045 node_a.node.handle_update_add_htlc(&node_b.node.get_our_node_id(), &update_add);
3047 for update_fulfill in commitment_update.update_fulfill_htlcs {
3048 node_a.node.handle_update_fulfill_htlc(&node_b.node.get_our_node_id(), &update_fulfill);
3050 for update_fail in commitment_update.update_fail_htlcs {
3051 node_a.node.handle_update_fail_htlc(&node_b.node.get_our_node_id(), &update_fail);
3054 if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed
3055 commitment_signed_dance!(node_a, node_b, commitment_update.commitment_signed, false);
3057 node_a.node.handle_commitment_signed(&node_b.node.get_our_node_id(), &commitment_update.commitment_signed);
3058 check_added_monitors!(node_a, 1);
3059 let as_revoke_and_ack = get_event_msg!(node_a, MessageSendEvent::SendRevokeAndACK, node_b.node.get_our_node_id());
3060 // No commitment_signed so get_event_msg's assert(len == 1) passes
3061 node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &as_revoke_and_ack);
3062 assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
3063 check_added_monitors!(node_b, 1);
3066 assert!(chan_msgs.2.is_none());
3070 for chan_msgs in resp_2.drain(..) {
3071 if send_channel_ready.1 {
3072 node_b.node.handle_channel_ready(&node_a.node.get_our_node_id(), &chan_msgs.0.unwrap());
3073 let announcement_event = node_b.node.get_and_clear_pending_msg_events();
3074 if !announcement_event.is_empty() {
3075 assert_eq!(announcement_event.len(), 1);
3076 match announcement_event[0] {
3077 MessageSendEvent::SendChannelUpdate { .. } => {},
3078 MessageSendEvent::SendAnnouncementSignatures { .. } => {},
3079 _ => panic!("Unexpected event {:?}!", announcement_event[0]),
3083 assert!(chan_msgs.0.is_none());
3086 assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst);
3087 node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &chan_msgs.1.unwrap());
3088 assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
3089 check_added_monitors!(node_b, 1);
3091 assert!(chan_msgs.1.is_none());
3093 if pending_htlc_adds.1 != 0 || pending_htlc_claims.1 != 0 || pending_htlc_fails.1 != 0 || pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 {
3094 let commitment_update = chan_msgs.2.unwrap();
3095 if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed
3096 assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.1 as usize);
3098 assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.1 + pending_cell_htlc_claims.1);
3099 assert_eq!(commitment_update.update_fail_htlcs.len(), pending_htlc_fails.1 + pending_cell_htlc_fails.1);
3100 assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
3101 for update_add in commitment_update.update_add_htlcs {
3102 node_b.node.handle_update_add_htlc(&node_a.node.get_our_node_id(), &update_add);
3104 for update_fulfill in commitment_update.update_fulfill_htlcs {
3105 node_b.node.handle_update_fulfill_htlc(&node_a.node.get_our_node_id(), &update_fulfill);
3107 for update_fail in commitment_update.update_fail_htlcs {
3108 node_b.node.handle_update_fail_htlc(&node_a.node.get_our_node_id(), &update_fail);
3111 if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed
3112 commitment_signed_dance!(node_b, node_a, commitment_update.commitment_signed, false);
3114 node_b.node.handle_commitment_signed(&node_a.node.get_our_node_id(), &commitment_update.commitment_signed);
3115 check_added_monitors!(node_b, 1);
3116 let bs_revoke_and_ack = get_event_msg!(node_b, MessageSendEvent::SendRevokeAndACK, node_a.node.get_our_node_id());
3117 // No commitment_signed so get_event_msg's assert(len == 1) passes
3118 node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &bs_revoke_and_ack);
3119 assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
3120 check_added_monitors!(node_a, 1);
3123 assert!(chan_msgs.2.is_none());