rust-lightning/lightning/src/ln/functional_test_utils.rs
bmancini55 d183b975da Add genesis block hash to NetworkGraph
This changes adds the genesis block hash as a BlockHash to the
NetworkGraph struct. Making the NetworkGraph aware allows the message
handler to validate the chain_hash for received messages. This change
also adds the hash value to the Writeable and Readable methods.
2020-12-09 15:02:32 -05:00

1565 lines
66 KiB
Rust

// This file is Copyright its original authors, visible in version control
// history.
//
// This file is licensed under the Apache License, Version 2.0 <LICENSE-APACHE
// or http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your option.
// You may not use this file except in accordance with one or both of these
// licenses.
//! A bunch of useful utilities for building networks of nodes and exchanging messages between
//! nodes for functional tests.
use chain::Watch;
use chain::channelmonitor::ChannelMonitor;
use chain::transaction::OutPoint;
use ln::channelmanager::{ChannelManager, ChannelManagerReadArgs, RAACommitmentOrder, PaymentPreimage, PaymentHash, PaymentSecret, PaymentSendFailure};
use routing::router::{Route, get_route};
use routing::network_graph::{NetGraphMsgHandler, NetworkGraph};
use ln::features::InitFeatures;
use ln::msgs;
use ln::msgs::{ChannelMessageHandler,RoutingMessageHandler};
use util::enforcing_trait_impls::EnforcingChannelKeys;
use util::test_utils;
use util::test_utils::TestChainMonitor;
use util::events::{Event, EventsProvider, MessageSendEvent, MessageSendEventsProvider};
use util::errors::APIError;
use util::config::UserConfig;
use util::ser::{ReadableArgs, Writeable, Readable};
use bitcoin::blockdata::block::{Block, BlockHeader};
use bitcoin::blockdata::transaction::{Transaction, TxOut};
use bitcoin::network::constants::Network;
use bitcoin::hashes::sha256::Hash as Sha256;
use bitcoin::hashes::Hash;
use bitcoin::hash_types::BlockHash;
use bitcoin::secp256k1::key::PublicKey;
use std::cell::RefCell;
use std::rc::Rc;
use std::sync::Mutex;
use std::mem;
use std::collections::HashMap;
pub const CHAN_CONFIRM_DEPTH: u32 = 100;
pub fn confirm_transaction<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, tx: &Transaction) {
let dummy_tx = Transaction { version: 0, lock_time: 0, input: Vec::new(), output: Vec::new() };
let dummy_tx_count = tx.version as usize;
let mut block = Block {
header: BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 },
txdata: vec![dummy_tx; dummy_tx_count],
};
block.txdata.push(tx.clone());
connect_block(node, &block, 1);
for i in 2..CHAN_CONFIRM_DEPTH {
block = Block {
header: BlockHeader { version: 0x20000000, prev_blockhash: block.header.block_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 },
txdata: vec![],
};
connect_block(node, &block, i);
}
}
pub fn connect_blocks<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, depth: u32, height: u32, parent: bool, prev_blockhash: BlockHash) -> BlockHash {
let mut block = Block {
header: BlockHeader { version: 0x2000000, prev_blockhash: if parent { prev_blockhash } else { Default::default() }, merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 },
txdata: vec![],
};
connect_block(node, &block, height + 1);
for i in 2..depth + 1 {
block = Block {
header: BlockHeader { version: 0x20000000, prev_blockhash: block.header.block_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 },
txdata: vec![],
};
connect_block(node, &block, height + i);
}
block.header.block_hash()
}
pub fn connect_block<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, block: &Block, height: u32) {
let txdata: Vec<_> = block.txdata.iter().enumerate().collect();
node.chain_monitor.chain_monitor.block_connected(&block.header, &txdata, height);
node.node.block_connected(&block.header, &txdata, height);
}
pub fn disconnect_block<'a, 'b, 'c, 'd>(node: &'a Node<'b, 'c, 'd>, header: &BlockHeader, height: u32) {
node.chain_monitor.chain_monitor.block_disconnected(header, height);
node.node.block_disconnected(header);
}
pub struct TestChanMonCfg {
pub tx_broadcaster: test_utils::TestBroadcaster,
pub fee_estimator: test_utils::TestFeeEstimator,
pub chain_source: test_utils::TestChainSource,
pub persister: test_utils::TestPersister,
pub logger: test_utils::TestLogger,
}
pub struct NodeCfg<'a> {
pub chain_source: &'a test_utils::TestChainSource,
pub tx_broadcaster: &'a test_utils::TestBroadcaster,
pub fee_estimator: &'a test_utils::TestFeeEstimator,
pub chain_monitor: test_utils::TestChainMonitor<'a>,
pub keys_manager: test_utils::TestKeysInterface,
pub logger: &'a test_utils::TestLogger,
pub node_seed: [u8; 32],
}
pub struct Node<'a, 'b: 'a, 'c: 'b> {
pub chain_source: &'c test_utils::TestChainSource,
pub tx_broadcaster: &'c test_utils::TestBroadcaster,
pub chain_monitor: &'b test_utils::TestChainMonitor<'c>,
pub keys_manager: &'b test_utils::TestKeysInterface,
pub node: &'a ChannelManager<EnforcingChannelKeys, &'b TestChainMonitor<'c>, &'c test_utils::TestBroadcaster, &'b test_utils::TestKeysInterface, &'c test_utils::TestFeeEstimator, &'c test_utils::TestLogger>,
pub net_graph_msg_handler: NetGraphMsgHandler<&'c test_utils::TestChainSource, &'c test_utils::TestLogger>,
pub node_seed: [u8; 32],
pub network_payment_count: Rc<RefCell<u8>>,
pub network_chan_count: Rc<RefCell<u32>>,
pub logger: &'c test_utils::TestLogger,
}
impl<'a, 'b, 'c> Drop for Node<'a, 'b, 'c> {
fn drop(&mut self) {
if !::std::thread::panicking() {
// Check that we processed all pending events
assert!(self.node.get_and_clear_pending_msg_events().is_empty());
assert!(self.node.get_and_clear_pending_events().is_empty());
assert!(self.chain_monitor.added_monitors.lock().unwrap().is_empty());
// Check that if we serialize the Router, we can deserialize it again.
{
let mut w = test_utils::TestVecWriter(Vec::new());
let network_graph_ser = self.net_graph_msg_handler.network_graph.read().unwrap();
network_graph_ser.write(&mut w).unwrap();
let network_graph_deser = <NetworkGraph>::read(&mut ::std::io::Cursor::new(&w.0)).unwrap();
assert!(network_graph_deser == *self.net_graph_msg_handler.network_graph.read().unwrap());
let net_graph_msg_handler = NetGraphMsgHandler::from_net_graph(
Some(self.chain_source), self.logger, network_graph_deser
);
let mut chan_progress = 0;
loop {
let orig_announcements = self.net_graph_msg_handler.get_next_channel_announcements(chan_progress, 255);
let deserialized_announcements = net_graph_msg_handler.get_next_channel_announcements(chan_progress, 255);
assert!(orig_announcements == deserialized_announcements);
chan_progress = match orig_announcements.last() {
Some(announcement) => announcement.0.contents.short_channel_id + 1,
None => break,
};
}
let mut node_progress = None;
loop {
let orig_announcements = self.net_graph_msg_handler.get_next_node_announcements(node_progress.as_ref(), 255);
let deserialized_announcements = net_graph_msg_handler.get_next_node_announcements(node_progress.as_ref(), 255);
assert!(orig_announcements == deserialized_announcements);
node_progress = match orig_announcements.last() {
Some(announcement) => Some(announcement.contents.node_id),
None => break,
};
}
}
// Check that if we serialize and then deserialize all our channel monitors we get the
// same set of outputs to watch for on chain as we have now. Note that if we write
// tests that fully close channels and remove the monitors at some point this may break.
let feeest = test_utils::TestFeeEstimator { sat_per_kw: 253 };
let mut deserialized_monitors = Vec::new();
{
let old_monitors = self.chain_monitor.chain_monitor.monitors.lock().unwrap();
for (_, old_monitor) in old_monitors.iter() {
let mut w = test_utils::TestVecWriter(Vec::new());
old_monitor.serialize_for_disk(&mut w).unwrap();
let (_, deserialized_monitor) = <(BlockHash, ChannelMonitor<EnforcingChannelKeys>)>::read(
&mut ::std::io::Cursor::new(&w.0)).unwrap();
deserialized_monitors.push(deserialized_monitor);
}
}
// Before using all the new monitors to check the watch outpoints, use the full set of
// them to ensure we can write and reload our ChannelManager.
{
let mut channel_monitors = HashMap::new();
for monitor in deserialized_monitors.iter_mut() {
channel_monitors.insert(monitor.get_funding_txo().0, monitor);
}
let mut w = test_utils::TestVecWriter(Vec::new());
self.node.write(&mut w).unwrap();
<(BlockHash, ChannelManager<EnforcingChannelKeys, &test_utils::TestChainMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator, &test_utils::TestLogger>)>::read(&mut ::std::io::Cursor::new(w.0), ChannelManagerReadArgs {
default_config: UserConfig::default(),
keys_manager: self.keys_manager,
fee_estimator: &test_utils::TestFeeEstimator { sat_per_kw: 253 },
chain_monitor: self.chain_monitor,
tx_broadcaster: &test_utils::TestBroadcaster {
txn_broadcasted: Mutex::new(self.tx_broadcaster.txn_broadcasted.lock().unwrap().clone())
},
logger: &test_utils::TestLogger::new(),
channel_monitors,
}).unwrap();
}
let persister = test_utils::TestPersister::new();
let broadcaster = test_utils::TestBroadcaster {
txn_broadcasted: Mutex::new(self.tx_broadcaster.txn_broadcasted.lock().unwrap().clone())
};
let chain_source = test_utils::TestChainSource::new(Network::Testnet);
let chain_monitor = test_utils::TestChainMonitor::new(Some(&chain_source), &broadcaster, &self.logger, &feeest, &persister);
for deserialized_monitor in deserialized_monitors.drain(..) {
if let Err(_) = chain_monitor.watch_channel(deserialized_monitor.get_funding_txo().0, deserialized_monitor) {
panic!();
}
}
assert_eq!(*chain_source.watched_txn.lock().unwrap(), *self.chain_source.watched_txn.lock().unwrap());
assert_eq!(*chain_source.watched_outputs.lock().unwrap(), *self.chain_source.watched_outputs.lock().unwrap());
}
}
}
pub fn create_chan_between_nodes<'a, 'b, 'c, 'd>(node_a: &'a Node<'b, 'c, 'd>, node_b: &'a Node<'b, 'c, 'd>, a_flags: InitFeatures, b_flags: InitFeatures) -> (msgs::ChannelAnnouncement, msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
create_chan_between_nodes_with_value(node_a, node_b, 100000, 10001, a_flags, b_flags)
}
pub fn create_chan_between_nodes_with_value<'a, 'b, 'c, 'd>(node_a: &'a Node<'b, 'c, 'd>, node_b: &'a Node<'b, 'c, 'd>, channel_value: u64, push_msat: u64, a_flags: InitFeatures, b_flags: InitFeatures) -> (msgs::ChannelAnnouncement, msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
let (funding_locked, channel_id, tx) = create_chan_between_nodes_with_value_a(node_a, node_b, channel_value, push_msat, a_flags, b_flags);
let (announcement, as_update, bs_update) = create_chan_between_nodes_with_value_b(node_a, node_b, &funding_locked);
(announcement, as_update, bs_update, channel_id, tx)
}
macro_rules! get_revoke_commit_msgs {
($node: expr, $node_id: expr) => {
{
let events = $node.node.get_and_clear_pending_msg_events();
assert_eq!(events.len(), 2);
(match events[0] {
MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
assert_eq!(*node_id, $node_id);
(*msg).clone()
},
_ => panic!("Unexpected event"),
}, match events[1] {
MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
assert_eq!(*node_id, $node_id);
assert!(updates.update_add_htlcs.is_empty());
assert!(updates.update_fulfill_htlcs.is_empty());
assert!(updates.update_fail_htlcs.is_empty());
assert!(updates.update_fail_malformed_htlcs.is_empty());
assert!(updates.update_fee.is_none());
updates.commitment_signed.clone()
},
_ => panic!("Unexpected event"),
})
}
}
}
/// Get an specific event message from the pending events queue.
#[macro_export]
macro_rules! get_event_msg {
($node: expr, $event_type: path, $node_id: expr) => {
{
let events = $node.node.get_and_clear_pending_msg_events();
assert_eq!(events.len(), 1);
match events[0] {
$event_type { ref node_id, ref msg } => {
assert_eq!(*node_id, $node_id);
(*msg).clone()
},
_ => panic!("Unexpected event"),
}
}
}
}
#[cfg(test)]
macro_rules! get_htlc_update_msgs {
($node: expr, $node_id: expr) => {
{
let events = $node.node.get_and_clear_pending_msg_events();
assert_eq!(events.len(), 1);
match events[0] {
MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
assert_eq!(*node_id, $node_id);
(*updates).clone()
},
_ => panic!("Unexpected event"),
}
}
}
}
#[cfg(test)]
macro_rules! get_feerate {
($node: expr, $channel_id: expr) => {
{
let chan_lock = $node.node.channel_state.lock().unwrap();
let chan = chan_lock.by_id.get(&$channel_id).unwrap();
chan.get_feerate()
}
}
}
#[cfg(test)]
macro_rules! get_local_commitment_txn {
($node: expr, $channel_id: expr) => {
{
let mut monitors = $node.chain_monitor.chain_monitor.monitors.lock().unwrap();
let mut commitment_txn = None;
for (funding_txo, monitor) in monitors.iter_mut() {
if funding_txo.to_channel_id() == $channel_id {
commitment_txn = Some(monitor.unsafe_get_latest_holder_commitment_txn(&$node.logger));
break;
}
}
commitment_txn.unwrap()
}
}
}
/// Check the error from attempting a payment.
#[macro_export]
macro_rules! unwrap_send_err {
($res: expr, $all_failed: expr, $type: pat, $check: expr) => {
match &$res {
&Err(PaymentSendFailure::AllFailedRetrySafe(ref fails)) if $all_failed => {
assert_eq!(fails.len(), 1);
match fails[0] {
$type => { $check },
_ => panic!(),
}
},
&Err(PaymentSendFailure::PartialFailure(ref fails)) if !$all_failed => {
assert_eq!(fails.len(), 1);
match fails[0] {
Err($type) => { $check },
_ => panic!(),
}
},
_ => panic!(),
}
}
}
/// Check whether N channel monitor(s) have been added.
#[macro_export]
macro_rules! check_added_monitors {
($node: expr, $count: expr) => {
{
let mut added_monitors = $node.chain_monitor.added_monitors.lock().unwrap();
assert_eq!(added_monitors.len(), $count);
added_monitors.clear();
}
}
}
pub fn create_funding_transaction<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, expected_chan_value: u64, expected_user_chan_id: u64) -> ([u8; 32], Transaction, OutPoint) {
let chan_id = *node.network_chan_count.borrow();
let events = node.node.get_and_clear_pending_events();
assert_eq!(events.len(), 1);
match events[0] {
Event::FundingGenerationReady { ref temporary_channel_id, ref channel_value_satoshis, ref output_script, user_channel_id } => {
assert_eq!(*channel_value_satoshis, expected_chan_value);
assert_eq!(user_channel_id, expected_user_chan_id);
let tx = Transaction { version: chan_id as i32, lock_time: 0, input: Vec::new(), output: vec![TxOut {
value: *channel_value_satoshis, script_pubkey: output_script.clone(),
}]};
let funding_outpoint = OutPoint { txid: tx.txid(), index: 0 };
(*temporary_channel_id, tx, funding_outpoint)
},
_ => panic!("Unexpected event"),
}
}
pub fn create_chan_between_nodes_with_value_init<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a, 'b, 'c>, channel_value: u64, push_msat: u64, a_flags: InitFeatures, b_flags: InitFeatures) -> Transaction {
node_a.node.create_channel(node_b.node.get_our_node_id(), channel_value, push_msat, 42, None).unwrap();
node_b.node.handle_open_channel(&node_a.node.get_our_node_id(), a_flags, &get_event_msg!(node_a, MessageSendEvent::SendOpenChannel, node_b.node.get_our_node_id()));
node_a.node.handle_accept_channel(&node_b.node.get_our_node_id(), b_flags, &get_event_msg!(node_b, MessageSendEvent::SendAcceptChannel, node_a.node.get_our_node_id()));
let (temporary_channel_id, tx, funding_output) = create_funding_transaction(node_a, channel_value, 42);
node_a.node.funding_transaction_generated(&temporary_channel_id, funding_output);
check_added_monitors!(node_a, 0);
node_b.node.handle_funding_created(&node_a.node.get_our_node_id(), &get_event_msg!(node_a, MessageSendEvent::SendFundingCreated, node_b.node.get_our_node_id()));
{
let mut added_monitors = node_b.chain_monitor.added_monitors.lock().unwrap();
assert_eq!(added_monitors.len(), 1);
assert_eq!(added_monitors[0].0, funding_output);
added_monitors.clear();
}
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()));
{
let mut added_monitors = node_a.chain_monitor.added_monitors.lock().unwrap();
assert_eq!(added_monitors.len(), 1);
assert_eq!(added_monitors[0].0, funding_output);
added_monitors.clear();
}
let events_4 = node_a.node.get_and_clear_pending_events();
assert_eq!(events_4.len(), 1);
match events_4[0] {
Event::FundingBroadcastSafe { ref funding_txo, user_channel_id } => {
assert_eq!(user_channel_id, 42);
assert_eq!(*funding_txo, funding_output);
},
_ => panic!("Unexpected event"),
};
tx
}
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) {
confirm_transaction(node_conf, tx);
node_recv.node.handle_funding_locked(&node_conf.node.get_our_node_id(), &get_event_msg!(node_conf, MessageSendEvent::SendFundingLocked, node_recv.node.get_our_node_id()));
}
pub fn create_chan_between_nodes_with_value_confirm_second<'a, 'b, 'c>(node_recv: &Node<'a, 'b, 'c>, node_conf: &Node<'a, 'b, 'c>) -> ((msgs::FundingLocked, msgs::AnnouncementSignatures), [u8; 32]) {
let channel_id;
let events_6 = node_conf.node.get_and_clear_pending_msg_events();
assert_eq!(events_6.len(), 2);
((match events_6[0] {
MessageSendEvent::SendFundingLocked { ref node_id, ref msg } => {
channel_id = msg.channel_id.clone();
assert_eq!(*node_id, node_recv.node.get_our_node_id());
msg.clone()
},
_ => panic!("Unexpected event"),
}, match events_6[1] {
MessageSendEvent::SendAnnouncementSignatures { ref node_id, ref msg } => {
assert_eq!(*node_id, node_recv.node.get_our_node_id());
msg.clone()
},
_ => panic!("Unexpected event"),
}), channel_id)
}
pub fn create_chan_between_nodes_with_value_confirm<'a, 'b, 'c, 'd>(node_a: &'a Node<'b, 'c, 'd>, node_b: &'a Node<'b, 'c, 'd>, tx: &Transaction) -> ((msgs::FundingLocked, msgs::AnnouncementSignatures), [u8; 32]) {
create_chan_between_nodes_with_value_confirm_first(node_a, node_b, tx);
confirm_transaction(node_a, tx);
create_chan_between_nodes_with_value_confirm_second(node_b, node_a)
}
pub fn create_chan_between_nodes_with_value_a<'a, 'b, 'c, 'd>(node_a: &'a Node<'b, 'c, 'd>, node_b: &'a Node<'b, 'c, 'd>, channel_value: u64, push_msat: u64, a_flags: InitFeatures, b_flags: InitFeatures) -> ((msgs::FundingLocked, msgs::AnnouncementSignatures), [u8; 32], Transaction) {
let tx = create_chan_between_nodes_with_value_init(node_a, node_b, channel_value, push_msat, a_flags, b_flags);
let (msgs, chan_id) = create_chan_between_nodes_with_value_confirm(node_a, node_b, &tx);
(msgs, chan_id, tx)
}
pub fn create_chan_between_nodes_with_value_b<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a, 'b, 'c>, as_funding_msgs: &(msgs::FundingLocked, msgs::AnnouncementSignatures)) -> (msgs::ChannelAnnouncement, msgs::ChannelUpdate, msgs::ChannelUpdate) {
node_b.node.handle_funding_locked(&node_a.node.get_our_node_id(), &as_funding_msgs.0);
let bs_announcement_sigs = get_event_msg!(node_b, MessageSendEvent::SendAnnouncementSignatures, node_a.node.get_our_node_id());
node_b.node.handle_announcement_signatures(&node_a.node.get_our_node_id(), &as_funding_msgs.1);
let events_7 = node_b.node.get_and_clear_pending_msg_events();
assert_eq!(events_7.len(), 1);
let (announcement, bs_update) = match events_7[0] {
MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
(msg, update_msg)
},
_ => panic!("Unexpected event"),
};
node_a.node.handle_announcement_signatures(&node_b.node.get_our_node_id(), &bs_announcement_sigs);
let events_8 = node_a.node.get_and_clear_pending_msg_events();
assert_eq!(events_8.len(), 1);
let as_update = match events_8[0] {
MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
assert!(*announcement == *msg);
assert_eq!(update_msg.contents.short_channel_id, announcement.contents.short_channel_id);
assert_eq!(update_msg.contents.short_channel_id, bs_update.contents.short_channel_id);
update_msg
},
_ => panic!("Unexpected event"),
};
*node_a.network_chan_count.borrow_mut() += 1;
((*announcement).clone(), (*as_update).clone(), (*bs_update).clone())
}
pub fn create_announced_chan_between_nodes<'a, 'b, 'c, 'd>(nodes: &'a Vec<Node<'b, 'c, 'd>>, a: usize, b: usize, a_flags: InitFeatures, b_flags: InitFeatures) -> (msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
create_announced_chan_between_nodes_with_value(nodes, a, b, 100000, 10001, a_flags, b_flags)
}
pub fn create_announced_chan_between_nodes_with_value<'a, 'b, 'c, 'd>(nodes: &'a Vec<Node<'b, 'c, 'd>>, a: usize, b: usize, channel_value: u64, push_msat: u64, a_flags: InitFeatures, b_flags: InitFeatures) -> (msgs::ChannelUpdate, msgs::ChannelUpdate, [u8; 32], Transaction) {
let chan_announcement = create_chan_between_nodes_with_value(&nodes[a], &nodes[b], channel_value, push_msat, a_flags, b_flags);
update_nodes_with_chan_announce(nodes, a, b, &chan_announcement.0, &chan_announcement.1, &chan_announcement.2);
(chan_announcement.1, chan_announcement.2, chan_announcement.3, chan_announcement.4)
}
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) {
nodes[a].node.broadcast_node_announcement([0, 0, 0], [0; 32], Vec::new());
let a_events = nodes[a].node.get_and_clear_pending_msg_events();
assert_eq!(a_events.len(), 1);
let a_node_announcement = match a_events[0] {
MessageSendEvent::BroadcastNodeAnnouncement { ref msg } => {
(*msg).clone()
},
_ => panic!("Unexpected event"),
};
nodes[b].node.broadcast_node_announcement([1, 1, 1], [1; 32], Vec::new());
let b_events = nodes[b].node.get_and_clear_pending_msg_events();
assert_eq!(b_events.len(), 1);
let b_node_announcement = match b_events[0] {
MessageSendEvent::BroadcastNodeAnnouncement { ref msg } => {
(*msg).clone()
},
_ => panic!("Unexpected event"),
};
for node in nodes {
assert!(node.net_graph_msg_handler.handle_channel_announcement(ann).unwrap());
node.net_graph_msg_handler.handle_channel_update(upd_1).unwrap();
node.net_graph_msg_handler.handle_channel_update(upd_2).unwrap();
node.net_graph_msg_handler.handle_node_announcement(&a_node_announcement).unwrap();
node.net_graph_msg_handler.handle_node_announcement(&b_node_announcement).unwrap();
}
}
macro_rules! check_spends {
($tx: expr, $($spends_txn: expr),*) => {
{
let get_output = |out_point: &bitcoin::blockdata::transaction::OutPoint| {
$(
if out_point.txid == $spends_txn.txid() {
return $spends_txn.output.get(out_point.vout as usize).cloned()
}
)*
None
};
let mut total_value_in = 0;
for input in $tx.input.iter() {
total_value_in += get_output(&input.previous_output).unwrap().value;
}
let mut total_value_out = 0;
for output in $tx.output.iter() {
total_value_out += output.value;
}
let min_fee = ($tx.get_weight() as u64 + 3) / 4; // One sat per vbyte (ie per weight/4, rounded up)
// Input amount - output amount = fee, so check that out + min_fee is smaller than input
assert!(total_value_out + min_fee <= total_value_in);
$tx.verify(get_output).unwrap();
}
}
}
macro_rules! get_closing_signed_broadcast {
($node: expr, $dest_pubkey: expr) => {
{
let events = $node.get_and_clear_pending_msg_events();
assert!(events.len() == 1 || events.len() == 2);
(match events[events.len() - 1] {
MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
assert_eq!(msg.contents.flags & 2, 2);
msg.clone()
},
_ => panic!("Unexpected event"),
}, if events.len() == 2 {
match events[0] {
MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => {
assert_eq!(*node_id, $dest_pubkey);
Some(msg.clone())
},
_ => panic!("Unexpected event"),
}
} else { None })
}
}
}
/// Check that a channel's closing channel update has been broadcasted, and optionally
/// check whether an error message event has occurred.
#[macro_export]
macro_rules! check_closed_broadcast {
($node: expr, $with_error_msg: expr) => {{
let events = $node.node.get_and_clear_pending_msg_events();
assert_eq!(events.len(), if $with_error_msg { 2 } else { 1 });
match events[0] {
MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
assert_eq!(msg.contents.flags & 2, 2);
},
_ => panic!("Unexpected event"),
}
if $with_error_msg {
match events[1] {
MessageSendEvent::HandleError { action: ErrorAction::SendErrorMessage { ref msg }, node_id: _ } => {
// TODO: Check node_id
Some(msg.clone())
},
_ => panic!("Unexpected event"),
}
} else { None }
}}
}
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) {
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) };
let (node_b, broadcaster_b) = if close_inbound_first { (&outbound_node.node, &outbound_node.tx_broadcaster) } else { (&inbound_node.node, &inbound_node.tx_broadcaster) };
let (tx_a, tx_b);
node_a.close_channel(channel_id).unwrap();
node_b.handle_shutdown(&node_a.get_our_node_id(), &get_event_msg!(struct_a, MessageSendEvent::SendShutdown, node_b.get_our_node_id()));
let events_1 = node_b.get_and_clear_pending_msg_events();
assert!(events_1.len() >= 1);
let shutdown_b = match events_1[0] {
MessageSendEvent::SendShutdown { ref node_id, ref msg } => {
assert_eq!(node_id, &node_a.get_our_node_id());
msg.clone()
},
_ => panic!("Unexpected event"),
};
let closing_signed_b = if !close_inbound_first {
assert_eq!(events_1.len(), 1);
None
} else {
Some(match events_1[1] {
MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => {
assert_eq!(node_id, &node_a.get_our_node_id());
msg.clone()
},
_ => panic!("Unexpected event"),
})
};
node_a.handle_shutdown(&node_b.get_our_node_id(), &shutdown_b);
let (as_update, bs_update) = if close_inbound_first {
assert!(node_a.get_and_clear_pending_msg_events().is_empty());
node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap());
assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1);
tx_a = broadcaster_a.txn_broadcasted.lock().unwrap().remove(0);
let (as_update, closing_signed_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id());
node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a.unwrap());
let (bs_update, none_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id());
assert!(none_b.is_none());
assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1);
tx_b = broadcaster_b.txn_broadcasted.lock().unwrap().remove(0);
(as_update, bs_update)
} else {
let closing_signed_a = get_event_msg!(struct_a, MessageSendEvent::SendClosingSigned, node_b.get_our_node_id());
node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a);
assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1);
tx_b = broadcaster_b.txn_broadcasted.lock().unwrap().remove(0);
let (bs_update, closing_signed_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id());
node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap());
let (as_update, none_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id());
assert!(none_a.is_none());
assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1);
tx_a = broadcaster_a.txn_broadcasted.lock().unwrap().remove(0);
(as_update, bs_update)
};
assert_eq!(tx_a, tx_b);
check_spends!(tx_a, funding_tx);
(as_update, bs_update, tx_a)
}
pub struct SendEvent {
pub node_id: PublicKey,
pub msgs: Vec<msgs::UpdateAddHTLC>,
pub commitment_msg: msgs::CommitmentSigned,
}
impl SendEvent {
pub fn from_commitment_update(node_id: PublicKey, updates: msgs::CommitmentUpdate) -> SendEvent {
assert!(updates.update_fulfill_htlcs.is_empty());
assert!(updates.update_fail_htlcs.is_empty());
assert!(updates.update_fail_malformed_htlcs.is_empty());
assert!(updates.update_fee.is_none());
SendEvent { node_id: node_id, msgs: updates.update_add_htlcs, commitment_msg: updates.commitment_signed }
}
pub fn from_event(event: MessageSendEvent) -> SendEvent {
match event {
MessageSendEvent::UpdateHTLCs { node_id, updates } => SendEvent::from_commitment_update(node_id, updates),
_ => panic!("Unexpected event type!"),
}
}
pub fn from_node<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>) -> SendEvent {
let mut events = node.node.get_and_clear_pending_msg_events();
assert_eq!(events.len(), 1);
SendEvent::from_event(events.pop().unwrap())
}
}
macro_rules! commitment_signed_dance {
($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr, true /* skip last step */) => {
{
check_added_monitors!($node_a, 0);
assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
$node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed);
check_added_monitors!($node_a, 1);
commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, false);
}
};
($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, true /* return extra message */, true /* return last RAA */) => {
{
let (as_revoke_and_ack, as_commitment_signed) = get_revoke_commit_msgs!($node_a, $node_b.node.get_our_node_id());
check_added_monitors!($node_b, 0);
assert!($node_b.node.get_and_clear_pending_msg_events().is_empty());
$node_b.node.handle_revoke_and_ack(&$node_a.node.get_our_node_id(), &as_revoke_and_ack);
assert!($node_b.node.get_and_clear_pending_msg_events().is_empty());
check_added_monitors!($node_b, 1);
$node_b.node.handle_commitment_signed(&$node_a.node.get_our_node_id(), &as_commitment_signed);
let (bs_revoke_and_ack, extra_msg_option) = {
let events = $node_b.node.get_and_clear_pending_msg_events();
assert!(events.len() <= 2);
(match events[0] {
MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
assert_eq!(*node_id, $node_a.node.get_our_node_id());
(*msg).clone()
},
_ => panic!("Unexpected event"),
}, events.get(1).map(|e| e.clone()))
};
check_added_monitors!($node_b, 1);
if $fail_backwards {
assert!($node_a.node.get_and_clear_pending_events().is_empty());
assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
}
(extra_msg_option, bs_revoke_and_ack)
}
};
($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr, true /* skip last step */, false /* return extra message */, true /* return last RAA */) => {
{
check_added_monitors!($node_a, 0);
assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
$node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed);
check_added_monitors!($node_a, 1);
let (extra_msg_option, bs_revoke_and_ack) = commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true, true);
assert!(extra_msg_option.is_none());
bs_revoke_and_ack
}
};
($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, true /* return extra message */) => {
{
let (extra_msg_option, bs_revoke_and_ack) = commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true, true);
$node_a.node.handle_revoke_and_ack(&$node_b.node.get_our_node_id(), &bs_revoke_and_ack);
check_added_monitors!($node_a, 1);
extra_msg_option
}
};
($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, false /* no extra message */) => {
{
assert!(commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true).is_none());
}
};
($node_a: expr, $node_b: expr, $commitment_signed: expr, $fail_backwards: expr) => {
{
commitment_signed_dance!($node_a, $node_b, $commitment_signed, $fail_backwards, true);
if $fail_backwards {
expect_pending_htlcs_forwardable!($node_a);
check_added_monitors!($node_a, 1);
let channel_state = $node_a.node.channel_state.lock().unwrap();
assert_eq!(channel_state.pending_msg_events.len(), 1);
if let MessageSendEvent::UpdateHTLCs { ref node_id, .. } = channel_state.pending_msg_events[0] {
assert_ne!(*node_id, $node_b.node.get_our_node_id());
} else { panic!("Unexpected event"); }
} else {
assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
}
}
}
}
/// Get a payment preimage and hash.
#[macro_export]
macro_rules! get_payment_preimage_hash {
($node: expr) => {
{
let payment_preimage = PaymentPreimage([*$node.network_payment_count.borrow(); 32]);
*$node.network_payment_count.borrow_mut() += 1;
let payment_hash = PaymentHash(Sha256::hash(&payment_preimage.0[..]).into_inner());
(payment_preimage, payment_hash)
}
}
}
macro_rules! expect_pending_htlcs_forwardable_ignore {
($node: expr) => {{
let events = $node.node.get_and_clear_pending_events();
assert_eq!(events.len(), 1);
match events[0] {
Event::PendingHTLCsForwardable { .. } => { },
_ => panic!("Unexpected event"),
};
}}
}
macro_rules! expect_pending_htlcs_forwardable {
($node: expr) => {{
expect_pending_htlcs_forwardable_ignore!($node);
$node.node.process_pending_htlc_forwards();
}}
}
#[cfg(test)]
macro_rules! expect_payment_received {
($node: expr, $expected_payment_hash: expr, $expected_recv_value: expr) => {
let events = $node.node.get_and_clear_pending_events();
assert_eq!(events.len(), 1);
match events[0] {
Event::PaymentReceived { ref payment_hash, ref payment_secret, amt } => {
assert_eq!($expected_payment_hash, *payment_hash);
assert_eq!(None, *payment_secret);
assert_eq!($expected_recv_value, amt);
},
_ => panic!("Unexpected event"),
}
}
}
macro_rules! expect_payment_sent {
($node: expr, $expected_payment_preimage: expr) => {
let events = $node.node.get_and_clear_pending_events();
assert_eq!(events.len(), 1);
match events[0] {
Event::PaymentSent { ref payment_preimage } => {
assert_eq!($expected_payment_preimage, *payment_preimage);
},
_ => panic!("Unexpected event"),
}
}
}
#[cfg(test)]
macro_rules! expect_payment_failed {
($node: expr, $expected_payment_hash: expr, $rejected_by_dest: expr $(, $expected_error_code: expr, $expected_error_data: expr)*) => {
let events = $node.node.get_and_clear_pending_events();
assert_eq!(events.len(), 1);
match events[0] {
Event::PaymentFailed { ref payment_hash, rejected_by_dest, ref error_code, ref error_data } => {
assert_eq!(*payment_hash, $expected_payment_hash);
assert_eq!(rejected_by_dest, $rejected_by_dest);
assert!(error_code.is_some());
assert!(error_data.is_some());
$(
assert_eq!(error_code.unwrap(), $expected_error_code);
assert_eq!(&error_data.as_ref().unwrap()[..], $expected_error_data);
)*
},
_ => panic!("Unexpected event"),
}
}
}
pub fn send_along_route_with_secret<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, route: Route, expected_paths: &[&[&Node<'a, 'b, 'c>]], recv_value: u64, our_payment_hash: PaymentHash, our_payment_secret: Option<PaymentSecret>) {
origin_node.node.send_payment(&route, our_payment_hash, &our_payment_secret).unwrap();
check_added_monitors!(origin_node, expected_paths.len());
pass_along_route(origin_node, expected_paths, recv_value, our_payment_hash, our_payment_secret);
}
pub fn pass_along_path<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_path: &[&Node<'a, 'b, 'c>], recv_value: u64, our_payment_hash: PaymentHash, our_payment_secret: Option<PaymentSecret>, ev: MessageSendEvent, payment_received_expected: bool) {
let mut payment_event = SendEvent::from_event(ev);
let mut prev_node = origin_node;
for (idx, &node) in expected_path.iter().enumerate() {
assert_eq!(node.node.get_our_node_id(), payment_event.node_id);
node.node.handle_update_add_htlc(&prev_node.node.get_our_node_id(), &payment_event.msgs[0]);
check_added_monitors!(node, 0);
commitment_signed_dance!(node, prev_node, payment_event.commitment_msg, false);
expect_pending_htlcs_forwardable!(node);
if idx == expected_path.len() - 1 {
let events_2 = node.node.get_and_clear_pending_events();
if payment_received_expected {
assert_eq!(events_2.len(), 1);
match events_2[0] {
Event::PaymentReceived { ref payment_hash, ref payment_secret, amt } => {
assert_eq!(our_payment_hash, *payment_hash);
assert_eq!(our_payment_secret, *payment_secret);
assert_eq!(amt, recv_value);
},
_ => panic!("Unexpected event"),
}
} else {
assert!(events_2.is_empty());
}
} else {
let mut events_2 = node.node.get_and_clear_pending_msg_events();
assert_eq!(events_2.len(), 1);
check_added_monitors!(node, 1);
payment_event = SendEvent::from_event(events_2.remove(0));
assert_eq!(payment_event.msgs.len(), 1);
}
prev_node = node;
}
}
pub fn pass_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&[&Node<'a, 'b, 'c>]], recv_value: u64, our_payment_hash: PaymentHash, our_payment_secret: Option<PaymentSecret>) {
let mut events = origin_node.node.get_and_clear_pending_msg_events();
assert_eq!(events.len(), expected_route.len());
for (path_idx, (ev, expected_path)) in events.drain(..).zip(expected_route.iter()).enumerate() {
// Once we've gotten through all the HTLCs, the last one should result in a
// PaymentReceived (but each previous one should not!), .
let expect_payment = path_idx == expected_route.len() - 1;
pass_along_path(origin_node, expected_path, recv_value, our_payment_hash.clone(), our_payment_secret, ev, expect_payment);
}
}
pub fn send_along_route_with_hash<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, route: Route, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64, our_payment_hash: PaymentHash) {
send_along_route_with_secret(origin_node, route, &[expected_route], recv_value, our_payment_hash, None);
}
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) {
let (our_payment_preimage, our_payment_hash) = get_payment_preimage_hash!(origin_node);
send_along_route_with_hash(origin_node, route, expected_route, recv_value, our_payment_hash);
(our_payment_preimage, our_payment_hash)
}
pub fn claim_payment_along_route_with_secret<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_paths: &[&[&Node<'a, 'b, 'c>]], skip_last: bool, our_payment_preimage: PaymentPreimage, our_payment_secret: Option<PaymentSecret>, expected_amount: u64) {
for path in expected_paths.iter() {
assert_eq!(path.last().unwrap().node.get_our_node_id(), expected_paths[0].last().unwrap().node.get_our_node_id());
}
assert!(expected_paths[0].last().unwrap().node.claim_funds(our_payment_preimage, &our_payment_secret, expected_amount));
check_added_monitors!(expected_paths[0].last().unwrap(), expected_paths.len());
macro_rules! msgs_from_ev {
($ev: expr) => {
match $ev {
&MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, ref update_fee, ref commitment_signed } } => {
assert!(update_add_htlcs.is_empty());
assert_eq!(update_fulfill_htlcs.len(), 1);
assert!(update_fail_htlcs.is_empty());
assert!(update_fail_malformed_htlcs.is_empty());
assert!(update_fee.is_none());
((update_fulfill_htlcs[0].clone(), commitment_signed.clone()), node_id.clone())
},
_ => panic!("Unexpected event"),
}
}
}
let mut per_path_msgs: Vec<((msgs::UpdateFulfillHTLC, msgs::CommitmentSigned), PublicKey)> = Vec::with_capacity(expected_paths.len());
let events = expected_paths[0].last().unwrap().node.get_and_clear_pending_msg_events();
assert_eq!(events.len(), expected_paths.len());
for ev in events.iter() {
per_path_msgs.push(msgs_from_ev!(ev));
}
for (expected_route, (path_msgs, next_hop)) in expected_paths.iter().zip(per_path_msgs.drain(..)) {
let mut next_msgs = Some(path_msgs);
let mut expected_next_node = next_hop;
macro_rules! last_update_fulfill_dance {
($node: expr, $prev_node: expr) => {
{
$node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
check_added_monitors!($node, 0);
assert!($node.node.get_and_clear_pending_msg_events().is_empty());
commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, false);
}
}
}
macro_rules! mid_update_fulfill_dance {
($node: expr, $prev_node: expr, $new_msgs: expr) => {
{
$node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
check_added_monitors!($node, 1);
let new_next_msgs = if $new_msgs {
let events = $node.node.get_and_clear_pending_msg_events();
assert_eq!(events.len(), 1);
let (res, nexthop) = msgs_from_ev!(&events[0]);
expected_next_node = nexthop;
Some(res)
} else {
assert!($node.node.get_and_clear_pending_msg_events().is_empty());
None
};
commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, false);
next_msgs = new_next_msgs;
}
}
}
let mut prev_node = expected_route.last().unwrap();
for (idx, node) in expected_route.iter().rev().enumerate().skip(1) {
assert_eq!(expected_next_node, node.node.get_our_node_id());
let update_next_msgs = !skip_last || idx != expected_route.len() - 1;
if next_msgs.is_some() {
mid_update_fulfill_dance!(node, prev_node, update_next_msgs);
} else {
assert!(!update_next_msgs);
assert!(node.node.get_and_clear_pending_msg_events().is_empty());
}
if !skip_last && idx == expected_route.len() - 1 {
assert_eq!(expected_next_node, origin_node.node.get_our_node_id());
}
prev_node = node;
}
if !skip_last {
last_update_fulfill_dance!(origin_node, expected_route.first().unwrap());
expect_payment_sent!(origin_node, our_payment_preimage);
}
}
}
pub fn claim_payment_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], skip_last: bool, our_payment_preimage: PaymentPreimage, expected_amount: u64) {
claim_payment_along_route_with_secret(origin_node, &[expected_route], skip_last, our_payment_preimage, None, expected_amount);
}
pub fn claim_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], our_payment_preimage: PaymentPreimage, expected_amount: u64) {
claim_payment_along_route(origin_node, expected_route, false, our_payment_preimage, expected_amount);
}
pub const TEST_FINAL_CLTV: u32 = 32;
pub fn route_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) -> (PaymentPreimage, PaymentHash) {
let net_graph_msg_handler = &origin_node.net_graph_msg_handler;
let logger = test_utils::TestLogger::new();
let route = get_route(&origin_node.node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &expected_route.last().unwrap().node.get_our_node_id(), None, &Vec::new(), recv_value, TEST_FINAL_CLTV, &logger).unwrap();
assert_eq!(route.paths.len(), 1);
assert_eq!(route.paths[0].len(), expected_route.len());
for (node, hop) in expected_route.iter().zip(route.paths[0].iter()) {
assert_eq!(hop.pubkey, node.node.get_our_node_id());
}
send_along_route(origin_node, route, expected_route, recv_value)
}
pub fn route_over_limit<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) {
let logger = test_utils::TestLogger::new();
let net_graph_msg_handler = &origin_node.net_graph_msg_handler;
let route = get_route(&origin_node.node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &expected_route.last().unwrap().node.get_our_node_id(), None, &Vec::new(), recv_value, TEST_FINAL_CLTV, &logger).unwrap();
assert_eq!(route.paths.len(), 1);
assert_eq!(route.paths[0].len(), expected_route.len());
for (node, hop) in expected_route.iter().zip(route.paths[0].iter()) {
assert_eq!(hop.pubkey, node.node.get_our_node_id());
}
let (_, our_payment_hash) = get_payment_preimage_hash!(origin_node);
unwrap_send_err!(origin_node.node.send_payment(&route, our_payment_hash, &None), true, APIError::ChannelUnavailable { ref err },
assert!(err.contains("Cannot send value that would put us over the max HTLC value in flight our peer will accept")));
}
pub fn send_payment<'a, 'b, 'c>(origin: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64, expected_value: u64) {
let our_payment_preimage = route_payment(&origin, expected_route, recv_value).0;
claim_payment(&origin, expected_route, our_payment_preimage, expected_value);
}
pub fn fail_payment_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], skip_last: bool, our_payment_hash: PaymentHash) {
assert!(expected_route.last().unwrap().node.fail_htlc_backwards(&our_payment_hash, &None));
expect_pending_htlcs_forwardable!(expected_route.last().unwrap());
check_added_monitors!(expected_route.last().unwrap(), 1);
let mut next_msgs: Option<(msgs::UpdateFailHTLC, msgs::CommitmentSigned)> = None;
macro_rules! update_fail_dance {
($node: expr, $prev_node: expr, $last_node: expr) => {
{
$node.node.handle_update_fail_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, !$last_node);
if skip_last && $last_node {
expect_pending_htlcs_forwardable!($node);
}
}
}
}
let mut expected_next_node = expected_route.last().unwrap().node.get_our_node_id();
let mut prev_node = expected_route.last().unwrap();
for (idx, node) in expected_route.iter().rev().enumerate() {
assert_eq!(expected_next_node, node.node.get_our_node_id());
if next_msgs.is_some() {
// We may be the "last node" for the purpose of the commitment dance if we're
// skipping the last node (implying it is disconnected) and we're the
// second-to-last node!
update_fail_dance!(node, prev_node, skip_last && idx == expected_route.len() - 1);
}
let events = node.node.get_and_clear_pending_msg_events();
if !skip_last || idx != expected_route.len() - 1 {
assert_eq!(events.len(), 1);
match events[0] {
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 } } => {
assert!(update_add_htlcs.is_empty());
assert!(update_fulfill_htlcs.is_empty());
assert_eq!(update_fail_htlcs.len(), 1);
assert!(update_fail_malformed_htlcs.is_empty());
assert!(update_fee.is_none());
expected_next_node = node_id.clone();
next_msgs = Some((update_fail_htlcs[0].clone(), commitment_signed.clone()));
},
_ => panic!("Unexpected event"),
}
} else {
assert!(events.is_empty());
}
if !skip_last && idx == expected_route.len() - 1 {
assert_eq!(expected_next_node, origin_node.node.get_our_node_id());
}
prev_node = node;
}
if !skip_last {
update_fail_dance!(origin_node, expected_route.first().unwrap(), true);
let events = origin_node.node.get_and_clear_pending_events();
assert_eq!(events.len(), 1);
match events[0] {
Event::PaymentFailed { payment_hash, rejected_by_dest, .. } => {
assert_eq!(payment_hash, our_payment_hash);
assert!(rejected_by_dest);
},
_ => panic!("Unexpected event"),
}
}
}
pub fn fail_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], our_payment_hash: PaymentHash) {
fail_payment_along_route(origin_node, expected_route, false, our_payment_hash);
}
pub fn create_chanmon_cfgs(node_count: usize) -> Vec<TestChanMonCfg> {
let mut chan_mon_cfgs = Vec::new();
for i in 0..node_count {
let tx_broadcaster = test_utils::TestBroadcaster{txn_broadcasted: Mutex::new(Vec::new())};
let fee_estimator = test_utils::TestFeeEstimator { sat_per_kw: 253 };
let chain_source = test_utils::TestChainSource::new(Network::Testnet);
let logger = test_utils::TestLogger::with_id(format!("node {}", i));
let persister = test_utils::TestPersister::new();
chan_mon_cfgs.push(TestChanMonCfg{ tx_broadcaster, fee_estimator, chain_source, logger, persister });
}
chan_mon_cfgs
}
pub fn create_node_cfgs<'a>(node_count: usize, chanmon_cfgs: &'a Vec<TestChanMonCfg>) -> Vec<NodeCfg<'a>> {
let mut nodes = Vec::new();
for i in 0..node_count {
let seed = [i as u8; 32];
let keys_manager = test_utils::TestKeysInterface::new(&seed, Network::Testnet);
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);
nodes.push(NodeCfg { chain_source: &chanmon_cfgs[i].chain_source, logger: &chanmon_cfgs[i].logger, tx_broadcaster: &chanmon_cfgs[i].tx_broadcaster, fee_estimator: &chanmon_cfgs[i].fee_estimator, chain_monitor, keys_manager, node_seed: seed });
}
nodes
}
pub fn create_node_chanmgrs<'a, 'b>(node_count: usize, cfgs: &'a Vec<NodeCfg<'b>>, node_config: &[Option<UserConfig>]) -> Vec<ChannelManager<EnforcingChannelKeys, &'a TestChainMonitor<'b>, &'b test_utils::TestBroadcaster, &'a test_utils::TestKeysInterface, &'b test_utils::TestFeeEstimator, &'b test_utils::TestLogger>> {
let mut chanmgrs = Vec::new();
for i in 0..node_count {
let mut default_config = UserConfig::default();
default_config.channel_options.announced_channel = true;
default_config.peer_channel_config_limits.force_announced_channel_preference = false;
default_config.own_channel_config.our_htlc_minimum_msat = 1000; // sanitization being done by the sender, to exerce receiver logic we need to lift of limit
let node = ChannelManager::new(Network::Testnet, cfgs[i].fee_estimator, &cfgs[i].chain_monitor, cfgs[i].tx_broadcaster, cfgs[i].logger, &cfgs[i].keys_manager, if node_config[i].is_some() { node_config[i].clone().unwrap() } else { default_config }, 0);
chanmgrs.push(node);
}
chanmgrs
}
pub fn create_network<'a, 'b: 'a, 'c: 'b>(node_count: usize, cfgs: &'b Vec<NodeCfg<'c>>, chan_mgrs: &'a Vec<ChannelManager<EnforcingChannelKeys, &'b TestChainMonitor<'c>, &'c test_utils::TestBroadcaster, &'b test_utils::TestKeysInterface, &'c test_utils::TestFeeEstimator, &'c test_utils::TestLogger>>) -> Vec<Node<'a, 'b, 'c>> {
let mut nodes = Vec::new();
let chan_count = Rc::new(RefCell::new(0));
let payment_count = Rc::new(RefCell::new(0));
for i in 0..node_count {
let net_graph_msg_handler = NetGraphMsgHandler::new(cfgs[i].chain_source.genesis_hash, None, cfgs[i].logger);
nodes.push(Node{ chain_source: cfgs[i].chain_source,
tx_broadcaster: cfgs[i].tx_broadcaster, chain_monitor: &cfgs[i].chain_monitor,
keys_manager: &cfgs[i].keys_manager, node: &chan_mgrs[i], net_graph_msg_handler,
node_seed: cfgs[i].node_seed, network_chan_count: chan_count.clone(),
network_payment_count: payment_count.clone(), logger: cfgs[i].logger,
})
}
nodes
}
pub const ACCEPTED_HTLC_SCRIPT_WEIGHT: usize = 138; //Here we have a diff due to HTLC CLTV expiry being < 2^15 in test
pub const OFFERED_HTLC_SCRIPT_WEIGHT: usize = 133;
#[derive(PartialEq)]
pub enum HTLCType { NONE, TIMEOUT, SUCCESS }
/// Tests that the given node has broadcast transactions for the given Channel
///
/// First checks that the latest holder commitment tx has been broadcast, unless an explicit
/// commitment_tx is provided, which may be used to test that a remote commitment tx was
/// broadcast and the revoked outputs were claimed.
///
/// Next tests that there is (or is not) a transaction that spends the commitment transaction
/// that appears to be the type of HTLC transaction specified in has_htlc_tx.
///
/// All broadcast transactions must be accounted for in one of the above three types of we'll
/// also fail.
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> {
let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
assert!(node_txn.len() >= if commitment_tx.is_some() { 0 } else { 1 } + if has_htlc_tx == HTLCType::NONE { 0 } else { 1 });
let mut res = Vec::with_capacity(2);
node_txn.retain(|tx| {
if tx.input.len() == 1 && tx.input[0].previous_output.txid == chan.3.txid() {
check_spends!(tx, chan.3);
if commitment_tx.is_none() {
res.push(tx.clone());
}
false
} else { true }
});
if let Some(explicit_tx) = commitment_tx {
res.push(explicit_tx.clone());
}
assert_eq!(res.len(), 1);
if has_htlc_tx != HTLCType::NONE {
node_txn.retain(|tx| {
if tx.input.len() == 1 && tx.input[0].previous_output.txid == res[0].txid() {
check_spends!(tx, res[0]);
if has_htlc_tx == HTLCType::TIMEOUT {
assert!(tx.lock_time != 0);
} else {
assert!(tx.lock_time == 0);
}
res.push(tx.clone());
false
} else { true }
});
assert!(res.len() == 2 || res.len() == 3);
if res.len() == 3 {
assert_eq!(res[1], res[2]);
}
}
assert!(node_txn.is_empty());
res
}
/// Tests that the given node has broadcast a claim transaction against the provided revoked
/// HTLC transaction.
pub fn test_revoked_htlc_claim_txn_broadcast<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, revoked_tx: Transaction, commitment_revoked_tx: Transaction) {
let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
// We may issue multiple claiming transaction on revoked outputs due to block rescan
// for revoked htlc outputs
if node_txn.len() != 1 && node_txn.len() != 2 && node_txn.len() != 3 { assert!(false); }
node_txn.retain(|tx| {
if tx.input.len() == 1 && tx.input[0].previous_output.txid == revoked_tx.txid() {
check_spends!(tx, revoked_tx);
false
} else { true }
});
node_txn.retain(|tx| {
check_spends!(tx, commitment_revoked_tx);
false
});
assert!(node_txn.is_empty());
}
pub fn check_preimage_claim<'a, 'b, 'c>(node: &Node<'a, 'b, 'c>, prev_txn: &Vec<Transaction>) -> Vec<Transaction> {
let mut node_txn = node.tx_broadcaster.txn_broadcasted.lock().unwrap();
assert!(node_txn.len() >= 1);
assert_eq!(node_txn[0].input.len(), 1);
let mut found_prev = false;
for tx in prev_txn {
if node_txn[0].input[0].previous_output.txid == tx.txid() {
check_spends!(node_txn[0], tx);
assert!(node_txn[0].input[0].witness[2].len() > 106); // must spend an htlc output
assert_eq!(tx.input.len(), 1); // must spend a commitment tx
found_prev = true;
break;
}
}
assert!(found_prev);
let mut res = Vec::new();
mem::swap(&mut *node_txn, &mut res);
res
}
pub fn get_announce_close_broadcast_events<'a, 'b, 'c>(nodes: &Vec<Node<'a, 'b, 'c>>, a: usize, b: usize) {
let events_1 = nodes[a].node.get_and_clear_pending_msg_events();
assert_eq!(events_1.len(), 1);
let as_update = match events_1[0] {
MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
msg.clone()
},
_ => panic!("Unexpected event"),
};
let events_2 = nodes[b].node.get_and_clear_pending_msg_events();
assert_eq!(events_2.len(), 1);
let bs_update = match events_2[0] {
MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
msg.clone()
},
_ => panic!("Unexpected event"),
};
for node in nodes {
node.net_graph_msg_handler.handle_channel_update(&as_update).unwrap();
node.net_graph_msg_handler.handle_channel_update(&bs_update).unwrap();
}
}
#[cfg(test)]
macro_rules! get_channel_value_stat {
($node: expr, $channel_id: expr) => {{
let chan_lock = $node.node.channel_state.lock().unwrap();
let chan = chan_lock.by_id.get(&$channel_id).unwrap();
chan.get_value_stat()
}}
}
macro_rules! get_chan_reestablish_msgs {
($src_node: expr, $dst_node: expr) => {
{
let mut res = Vec::with_capacity(1);
for msg in $src_node.node.get_and_clear_pending_msg_events() {
if let MessageSendEvent::SendChannelReestablish { ref node_id, ref msg } = msg {
assert_eq!(*node_id, $dst_node.node.get_our_node_id());
res.push(msg.clone());
} else {
panic!("Unexpected event")
}
}
res
}
}
}
macro_rules! handle_chan_reestablish_msgs {
($src_node: expr, $dst_node: expr) => {
{
let msg_events = $src_node.node.get_and_clear_pending_msg_events();
let mut idx = 0;
let funding_locked = if let Some(&MessageSendEvent::SendFundingLocked { ref node_id, ref msg }) = msg_events.get(0) {
idx += 1;
assert_eq!(*node_id, $dst_node.node.get_our_node_id());
Some(msg.clone())
} else {
None
};
let mut revoke_and_ack = None;
let mut commitment_update = None;
let order = if let Some(ev) = msg_events.get(idx) {
idx += 1;
match ev {
&MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
assert_eq!(*node_id, $dst_node.node.get_our_node_id());
revoke_and_ack = Some(msg.clone());
RAACommitmentOrder::RevokeAndACKFirst
},
&MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
assert_eq!(*node_id, $dst_node.node.get_our_node_id());
commitment_update = Some(updates.clone());
RAACommitmentOrder::CommitmentFirst
},
_ => panic!("Unexpected event"),
}
} else {
RAACommitmentOrder::CommitmentFirst
};
if let Some(ev) = msg_events.get(idx) {
match ev {
&MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
assert_eq!(*node_id, $dst_node.node.get_our_node_id());
assert!(revoke_and_ack.is_none());
revoke_and_ack = Some(msg.clone());
},
&MessageSendEvent::UpdateHTLCs { ref node_id, ref updates } => {
assert_eq!(*node_id, $dst_node.node.get_our_node_id());
assert!(commitment_update.is_none());
commitment_update = Some(updates.clone());
},
_ => panic!("Unexpected event"),
}
}
(funding_locked, revoke_and_ack, commitment_update, order)
}
}
}
/// pending_htlc_adds includes both the holding cell and in-flight update_add_htlcs, whereas
/// for claims/fails they are separated out.
pub fn reconnect_nodes<'a, 'b, 'c>(node_a: &Node<'a, 'b, 'c>, node_b: &Node<'a, 'b, 'c>, send_funding_locked: (bool, bool), pending_htlc_adds: (i64, i64), pending_htlc_claims: (usize, usize), pending_cell_htlc_claims: (usize, usize), pending_cell_htlc_fails: (usize, usize), pending_raa: (bool, bool)) {
node_a.node.peer_connected(&node_b.node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
let reestablish_1 = get_chan_reestablish_msgs!(node_a, node_b);
node_b.node.peer_connected(&node_a.node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() });
let reestablish_2 = get_chan_reestablish_msgs!(node_b, node_a);
if send_funding_locked.0 {
// If a expects a funding_locked, it better not think it has received a revoke_and_ack
// from b
for reestablish in reestablish_1.iter() {
assert_eq!(reestablish.next_remote_commitment_number, 0);
}
}
if send_funding_locked.1 {
// If b expects a funding_locked, it better not think it has received a revoke_and_ack
// from a
for reestablish in reestablish_2.iter() {
assert_eq!(reestablish.next_remote_commitment_number, 0);
}
}
if send_funding_locked.0 || send_funding_locked.1 {
// If we expect any funding_locked's, both sides better have set
// next_holder_commitment_number to 1
for reestablish in reestablish_1.iter() {
assert_eq!(reestablish.next_local_commitment_number, 1);
}
for reestablish in reestablish_2.iter() {
assert_eq!(reestablish.next_local_commitment_number, 1);
}
}
let mut resp_1 = Vec::new();
for msg in reestablish_1 {
node_b.node.handle_channel_reestablish(&node_a.node.get_our_node_id(), &msg);
resp_1.push(handle_chan_reestablish_msgs!(node_b, node_a));
}
if pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 {
check_added_monitors!(node_b, 1);
} else {
check_added_monitors!(node_b, 0);
}
let mut resp_2 = Vec::new();
for msg in reestablish_2 {
node_a.node.handle_channel_reestablish(&node_b.node.get_our_node_id(), &msg);
resp_2.push(handle_chan_reestablish_msgs!(node_a, node_b));
}
if pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 {
check_added_monitors!(node_a, 1);
} else {
check_added_monitors!(node_a, 0);
}
// We don't yet support both needing updates, as that would require a different commitment dance:
assert!((pending_htlc_adds.0 == 0 && pending_htlc_claims.0 == 0 && pending_cell_htlc_claims.0 == 0 && pending_cell_htlc_fails.0 == 0) ||
(pending_htlc_adds.1 == 0 && pending_htlc_claims.1 == 0 && pending_cell_htlc_claims.1 == 0 && pending_cell_htlc_fails.1 == 0));
for chan_msgs in resp_1.drain(..) {
if send_funding_locked.0 {
node_a.node.handle_funding_locked(&node_b.node.get_our_node_id(), &chan_msgs.0.unwrap());
let announcement_event = node_a.node.get_and_clear_pending_msg_events();
if !announcement_event.is_empty() {
assert_eq!(announcement_event.len(), 1);
if let MessageSendEvent::SendAnnouncementSignatures { .. } = announcement_event[0] {
//TODO: Test announcement_sigs re-sending
} else { panic!("Unexpected event!"); }
}
} else {
assert!(chan_msgs.0.is_none());
}
if pending_raa.0 {
assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst);
node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &chan_msgs.1.unwrap());
assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
check_added_monitors!(node_a, 1);
} else {
assert!(chan_msgs.1.is_none());
}
if pending_htlc_adds.0 != 0 || pending_htlc_claims.0 != 0 || pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 {
let commitment_update = chan_msgs.2.unwrap();
if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed
assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.0 as usize);
} else {
assert!(commitment_update.update_add_htlcs.is_empty());
}
assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.0 + pending_cell_htlc_claims.0);
assert_eq!(commitment_update.update_fail_htlcs.len(), pending_cell_htlc_fails.0);
assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
for update_add in commitment_update.update_add_htlcs {
node_a.node.handle_update_add_htlc(&node_b.node.get_our_node_id(), &update_add);
}
for update_fulfill in commitment_update.update_fulfill_htlcs {
node_a.node.handle_update_fulfill_htlc(&node_b.node.get_our_node_id(), &update_fulfill);
}
for update_fail in commitment_update.update_fail_htlcs {
node_a.node.handle_update_fail_htlc(&node_b.node.get_our_node_id(), &update_fail);
}
if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed
commitment_signed_dance!(node_a, node_b, commitment_update.commitment_signed, false);
} else {
node_a.node.handle_commitment_signed(&node_b.node.get_our_node_id(), &commitment_update.commitment_signed);
check_added_monitors!(node_a, 1);
let as_revoke_and_ack = get_event_msg!(node_a, MessageSendEvent::SendRevokeAndACK, node_b.node.get_our_node_id());
// No commitment_signed so get_event_msg's assert(len == 1) passes
node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &as_revoke_and_ack);
assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
check_added_monitors!(node_b, 1);
}
} else {
assert!(chan_msgs.2.is_none());
}
}
for chan_msgs in resp_2.drain(..) {
if send_funding_locked.1 {
node_b.node.handle_funding_locked(&node_a.node.get_our_node_id(), &chan_msgs.0.unwrap());
let announcement_event = node_b.node.get_and_clear_pending_msg_events();
if !announcement_event.is_empty() {
assert_eq!(announcement_event.len(), 1);
if let MessageSendEvent::SendAnnouncementSignatures { .. } = announcement_event[0] {
//TODO: Test announcement_sigs re-sending
} else { panic!("Unexpected event!"); }
}
} else {
assert!(chan_msgs.0.is_none());
}
if pending_raa.1 {
assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst);
node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &chan_msgs.1.unwrap());
assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
check_added_monitors!(node_b, 1);
} else {
assert!(chan_msgs.1.is_none());
}
if pending_htlc_adds.1 != 0 || pending_htlc_claims.1 != 0 || pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 {
let commitment_update = chan_msgs.2.unwrap();
if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed
assert_eq!(commitment_update.update_add_htlcs.len(), pending_htlc_adds.1 as usize);
}
assert_eq!(commitment_update.update_fulfill_htlcs.len(), pending_htlc_claims.0 + pending_cell_htlc_claims.0);
assert_eq!(commitment_update.update_fail_htlcs.len(), pending_cell_htlc_fails.0);
assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
for update_add in commitment_update.update_add_htlcs {
node_b.node.handle_update_add_htlc(&node_a.node.get_our_node_id(), &update_add);
}
for update_fulfill in commitment_update.update_fulfill_htlcs {
node_b.node.handle_update_fulfill_htlc(&node_a.node.get_our_node_id(), &update_fulfill);
}
for update_fail in commitment_update.update_fail_htlcs {
node_b.node.handle_update_fail_htlc(&node_a.node.get_our_node_id(), &update_fail);
}
if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed
commitment_signed_dance!(node_b, node_a, commitment_update.commitment_signed, false);
} else {
node_b.node.handle_commitment_signed(&node_a.node.get_our_node_id(), &commitment_update.commitment_signed);
check_added_monitors!(node_b, 1);
let bs_revoke_and_ack = get_event_msg!(node_b, MessageSendEvent::SendRevokeAndACK, node_a.node.get_our_node_id());
// No commitment_signed so get_event_msg's assert(len == 1) passes
node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &bs_revoke_and_ack);
assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
check_added_monitors!(node_a, 1);
}
} else {
assert!(chan_msgs.2.is_none());
}
}
}