_ Git - rust-lightning/blob - lightning/src/util/test_utils.rs

   1 use chain::chaininterface;
   2 use chain::chaininterface::ConfirmationTarget;
   3 use chain::transaction::OutPoint;
   4 use chain::keysinterface;
   5 use ln::channelmonitor;
   6 use ln::msgs;
   7 use ln::msgs::LocalFeatures;
   8 use ln::msgs::{LightningError};
   9 use ln::channelmonitor::HTLCUpdate;
  10 use util::enforcing_trait_impls::EnforcingChannelKeys;
  11 use util::events;
  12 use util::logger::{Logger, Level, Record};
  13 use util::ser::{ReadableArgs, Writer};
  14
  15 use bitcoin::blockdata::transaction::Transaction;
  16 use bitcoin::blockdata::script::Script;
  17 use bitcoin_hashes::sha256d::Hash as Sha256dHash;
  18 use bitcoin::network::constants::Network;
  19
  20 use secp256k1::{SecretKey, PublicKey};
  21
  22 use std::time::{SystemTime, UNIX_EPOCH};
  23 use std::sync::{Arc,Mutex};
  24 use std::{mem};
  25 use std::collections::HashMap;
  26
  27 pub struct TestVecWriter(pub Vec<u8>);
  28 impl Writer for TestVecWriter {
  29         fn write_all(&mut self, buf: &[u8]) -> Result<(), ::std::io::Error> {
  30                 self.0.extend_from_slice(buf);
  31                 Ok(())
  32         }
  33         fn size_hint(&mut self, size: usize) {
  34                 self.0.reserve_exact(size);
  35         }
  36 }
  37
  38 pub struct TestFeeEstimator {
  39         pub sat_per_kw: u64,
  40 }
  41 impl chaininterface::FeeEstimator for TestFeeEstimator {
  42         fn get_est_sat_per_1000_weight(&self, _confirmation_target: ConfirmationTarget) -> u64 {
  43                 self.sat_per_kw
  44         }
  45 }
  46
  47 pub struct TestChannelMonitor {
  48         pub added_monitors: Mutex<Vec<(OutPoint, channelmonitor::ChannelMonitor)>>,
  49         pub simple_monitor: Arc<channelmonitor::SimpleManyChannelMonitor<OutPoint>>,
  50         pub update_ret: Mutex<Result<(), channelmonitor::ChannelMonitorUpdateErr>>,
  51 }
  52 impl TestChannelMonitor {
  53         pub fn new(chain_monitor: Arc<chaininterface::ChainWatchInterface>, broadcaster: Arc<chaininterface::BroadcasterInterface>, logger: Arc<Logger>, fee_estimator: Arc<chaininterface::FeeEstimator>) -> Self {
  54                 Self {
  55                         added_monitors: Mutex::new(Vec::new()),
  56                         simple_monitor: channelmonitor::SimpleManyChannelMonitor::new(chain_monitor, broadcaster, logger, fee_estimator),
  57                         update_ret: Mutex::new(Ok(())),
  58                 }
  59         }
  60 }
  61 impl channelmonitor::ManyChannelMonitor for TestChannelMonitor {
  62         fn add_update_monitor(&self, funding_txo: OutPoint, monitor: channelmonitor::ChannelMonitor) -> Result<(), channelmonitor::ChannelMonitorUpdateErr> {
  63                 // At every point where we get a monitor update, we should be able to send a useful monitor
  64                 // to a watchtower and disk...
  65                 let mut w = TestVecWriter(Vec::new());
  66                 monitor.write_for_disk(&mut w).unwrap();
  67                 assert!(<(Sha256dHash, channelmonitor::ChannelMonitor)>::read(
  68                                 &mut ::std::io::Cursor::new(&w.0), Arc::new(TestLogger::new())).unwrap().1 == monitor);
  69                 w.0.clear();
  70                 monitor.write_for_watchtower(&mut w).unwrap(); // This at least shouldn't crash...
  71                 self.added_monitors.lock().unwrap().push((funding_txo, monitor.clone()));
  72                 assert!(self.simple_monitor.add_update_monitor(funding_txo, monitor).is_ok());
  73                 self.update_ret.lock().unwrap().clone()
  74         }
  75
  76         fn fetch_pending_htlc_updated(&self) -> Vec<HTLCUpdate> {
  77                 return self.simple_monitor.fetch_pending_htlc_updated();
  78         }
  79 }
  80
  81 pub struct TestBroadcaster {
  82         pub txn_broadcasted: Mutex<Vec<Transaction>>,
  83 }
  84 impl chaininterface::BroadcasterInterface for TestBroadcaster {
  85         fn broadcast_transaction(&self, tx: &Transaction) {
  86                 self.txn_broadcasted.lock().unwrap().push(tx.clone());
  87         }
  88 }
  89
  90 pub struct TestChannelMessageHandler {
  91         pub pending_events: Mutex<Vec<events::MessageSendEvent>>,
  92 }
  93
  94 impl TestChannelMessageHandler {
  95         pub fn new() -> Self {
  96                 TestChannelMessageHandler {
  97                         pending_events: Mutex::new(Vec::new()),
  98                 }
  99         }
 100 }
 101
 102 impl msgs::ChannelMessageHandler for TestChannelMessageHandler {
 103         fn handle_open_channel(&self, _their_node_id: &PublicKey, _their_local_features: LocalFeatures, _msg: &msgs::OpenChannel) {}
 104         fn handle_accept_channel(&self, _their_node_id: &PublicKey, _their_local_features: LocalFeatures, _msg: &msgs::AcceptChannel) {}
 105         fn handle_funding_created(&self, _their_node_id: &PublicKey, _msg: &msgs::FundingCreated) {}
 106         fn handle_funding_signed(&self, _their_node_id: &PublicKey, _msg: &msgs::FundingSigned) {}
 107         fn handle_funding_locked(&self, _their_node_id: &PublicKey, _msg: &msgs::FundingLocked) {}
 108         fn handle_shutdown(&self, _their_node_id: &PublicKey, _msg: &msgs::Shutdown) {}
 109         fn handle_closing_signed(&self, _their_node_id: &PublicKey, _msg: &msgs::ClosingSigned) {}
 110         fn handle_update_add_htlc(&self, _their_node_id: &PublicKey, _msg: &msgs::UpdateAddHTLC) {}
 111         fn handle_update_fulfill_htlc(&self, _their_node_id: &PublicKey, _msg: &msgs::UpdateFulfillHTLC) {}
 112         fn handle_update_fail_htlc(&self, _their_node_id: &PublicKey, _msg: &msgs::UpdateFailHTLC) {}
 113         fn handle_update_fail_malformed_htlc(&self, _their_node_id: &PublicKey, _msg: &msgs::UpdateFailMalformedHTLC) {}
 114         fn handle_commitment_signed(&self, _their_node_id: &PublicKey, _msg: &msgs::CommitmentSigned) {}
 115         fn handle_revoke_and_ack(&self, _their_node_id: &PublicKey, _msg: &msgs::RevokeAndACK) {}
 116         fn handle_update_fee(&self, _their_node_id: &PublicKey, _msg: &msgs::UpdateFee) {}
 117         fn handle_announcement_signatures(&self, _their_node_id: &PublicKey, _msg: &msgs::AnnouncementSignatures) {}
 118         fn handle_channel_reestablish(&self, _their_node_id: &PublicKey, _msg: &msgs::ChannelReestablish) {}
 119         fn peer_disconnected(&self, _their_node_id: &PublicKey, _no_connection_possible: bool) {}
 120         fn peer_connected(&self, _their_node_id: &PublicKey) {}
 121         fn handle_error(&self, _their_node_id: &PublicKey, _msg: &msgs::ErrorMessage) {}
 122 }
 123
 124 impl events::MessageSendEventsProvider for TestChannelMessageHandler {
 125         fn get_and_clear_pending_msg_events(&self) -> Vec<events::MessageSendEvent> {
 126                 let mut pending_events = self.pending_events.lock().unwrap();
 127                 let mut ret = Vec::new();
 128                 mem::swap(&mut ret, &mut *pending_events);
 129                 ret
 130         }
 131 }
 132
 133 pub struct TestRoutingMessageHandler {}
 134
 135 impl TestRoutingMessageHandler {
 136         pub fn new() -> Self {
 137                 TestRoutingMessageHandler {}
 138         }
 139 }
 140 impl msgs::RoutingMessageHandler for TestRoutingMessageHandler {
 141         fn handle_node_announcement(&self, _msg: &msgs::NodeAnnouncement) -> Result<bool, LightningError> {
 142                 Err(LightningError { err: "", action: msgs::ErrorAction::IgnoreError })
 143         }
 144         fn handle_channel_announcement(&self, _msg: &msgs::ChannelAnnouncement) -> Result<bool, LightningError> {
 145                 Err(LightningError { err: "", action: msgs::ErrorAction::IgnoreError })
 146         }
 147         fn handle_channel_update(&self, _msg: &msgs::ChannelUpdate) -> Result<bool, LightningError> {
 148                 Err(LightningError { err: "", action: msgs::ErrorAction::IgnoreError })
 149         }
 150         fn handle_htlc_fail_channel_update(&self, _update: &msgs::HTLCFailChannelUpdate) {}
 151         fn get_next_channel_announcements(&self, _starting_point: u64, _batch_amount: u8) -> Vec<(msgs::ChannelAnnouncement, msgs::ChannelUpdate,msgs::ChannelUpdate)> {
 152                 Vec::new()
 153         }
 154         fn get_next_node_announcements(&self, _starting_point: Option<&PublicKey>, _batch_amount: u8) -> Vec<msgs::NodeAnnouncement> {
 155                 Vec::new()
 156         }
 157 }
 158
 159 pub struct TestLogger {
 160         level: Level,
 161         id: String,
 162         pub lines: Mutex<HashMap<(String, String), usize>>,
 163 }
 164
 165 impl TestLogger {
 166         pub fn new() -> TestLogger {
 167                 Self::with_id("".to_owned())
 168         }
 169         pub fn with_id(id: String) -> TestLogger {
 170                 TestLogger {
 171                         level: Level::Trace,
 172                         id,
 173                         lines: Mutex::new(HashMap::new())
 174                 }
 175         }
 176         pub fn enable(&mut self, level: Level) {
 177                 self.level = level;
 178         }
 179         pub fn assert_log(&self, module: String, line: String, count: usize) {
 180                 let log_entries = self.lines.lock().unwrap();
 181                 assert_eq!(log_entries.get(&(module, line)), Some(&count));
 182         }
 183 }
 184
 185 impl Logger for TestLogger {
 186         fn log(&self, record: &Record) {
 187                 *self.lines.lock().unwrap().entry((record.module_path.to_string(), format!("{}", record.args))).or_insert(0) += 1;
 188                 if self.level >= record.level {
 189                         println!("{:<5} {} [{} : {}, {}] {}", record.level.to_string(), self.id, record.module_path, record.file, record.line, record.args);
 190                 }
 191         }
 192 }
 193
 194 pub struct TestKeysInterface {
 195         backing: keysinterface::KeysManager,
 196         pub override_session_priv: Mutex<Option<SecretKey>>,
 197         pub override_channel_id_priv: Mutex<Option<[u8; 32]>>,
 198 }
 199
 200 impl keysinterface::KeysInterface for TestKeysInterface {
 201         type ChanKeySigner = EnforcingChannelKeys;
 202
 203         fn get_node_secret(&self) -> SecretKey { self.backing.get_node_secret() }
 204         fn get_destination_script(&self) -> Script { self.backing.get_destination_script() }
 205         fn get_shutdown_pubkey(&self) -> PublicKey { self.backing.get_shutdown_pubkey() }
 206         fn get_channel_keys(&self, inbound: bool) -> EnforcingChannelKeys { EnforcingChannelKeys::new(self.backing.get_channel_keys(inbound)) }
 207
 208         fn get_onion_rand(&self) -> (SecretKey, [u8; 32]) {
 209                 match *self.override_session_priv.lock().unwrap() {
 210                         Some(key) => (key.clone(), [0; 32]),
 211                         None => self.backing.get_onion_rand()
 212                 }
 213         }
 214
 215         fn get_channel_id(&self) -> [u8; 32] {
 216                 match *self.override_channel_id_priv.lock().unwrap() {
 217                         Some(key) => key.clone(),
 218                         None => self.backing.get_channel_id()
 219                 }
 220         }
 221 }
 222
 223 impl TestKeysInterface {
 224         pub fn new(seed: &[u8; 32], network: Network, logger: Arc<Logger>) -> Self {
 225                 let now = SystemTime::now().duration_since(UNIX_EPOCH).expect("Time went backwards");
 226                 Self {
 227                         backing: keysinterface::KeysManager::new(seed, network, logger, now.as_secs(), now.subsec_nanos()),
 228                         override_session_priv: Mutex::new(None),
 229                         override_channel_id_priv: Mutex::new(None),
 230                 }
 231         }
 232 }