xmr-btc-swap/swap/tests/testutils/mod.rs
2021-03-17 16:31:16 +11:00

736 lines
22 KiB
Rust

mod bitcoind;
mod electrs;
use crate::testutils;
use anyhow::{Context, Result};
use bitcoin_harness::{BitcoindRpcApi, Client};
use futures::Future;
use get_port::get_port;
use libp2p::core::Multiaddr;
use libp2p::PeerId;
use monero_harness::{image, Monero};
use std::convert::Infallible;
use std::path::{Path, PathBuf};
use std::sync::Arc;
use std::time::Duration;
use swap::asb::FixedRate;
use swap::bitcoin::{CancelTimelock, PunishTimelock};
use swap::database::Database;
use swap::env::{Config, GetConfig};
use swap::protocol::alice::{AliceState, Swap};
use swap::protocol::bob::BobState;
use swap::protocol::{alice, bob};
use swap::seed::Seed;
use swap::{bitcoin, env, monero};
use tempfile::tempdir;
use testcontainers::clients::Cli;
use testcontainers::{Container, Docker, RunArgs};
use tokio::sync::mpsc;
use tokio::task::JoinHandle;
use tokio::time::interval;
use tracing::dispatcher::DefaultGuard;
use tracing_log::LogTracer;
use url::Url;
use uuid::Uuid;
const MONERO_WALLET_NAME_BOB: &str = "bob";
const MONERO_WALLET_NAME_ALICE: &str = "alice";
const BITCOIN_TEST_WALLET_NAME: &str = "testwallet";
#[derive(Debug, Clone)]
pub struct StartingBalances {
pub xmr: monero::Amount,
pub btc: bitcoin::Amount,
}
#[derive(Clone)]
struct BobParams {
seed: Seed,
db_path: PathBuf,
swap_id: Uuid,
bitcoin_wallet: Arc<bitcoin::Wallet>,
monero_wallet: Arc<monero::Wallet>,
alice_address: Multiaddr,
alice_peer_id: PeerId,
env_config: Config,
}
impl BobParams {
pub async fn builder(&self, event_loop_handle: bob::EventLoopHandle) -> Result<bob::Builder> {
let receive_address = self.monero_wallet.get_main_address().await?;
Ok(bob::Builder::new(
Database::open(&self.db_path.clone().as_path()).unwrap(),
self.swap_id,
self.bitcoin_wallet.clone(),
self.monero_wallet.clone(),
self.env_config,
event_loop_handle,
receive_address,
))
}
pub fn new_eventloop(&self) -> Result<(bob::EventLoop, bob::EventLoopHandle)> {
bob::EventLoop::new(
&self.seed.derive_libp2p_identity(),
self.alice_peer_id,
self.alice_address.clone(),
self.bitcoin_wallet.clone(),
)
}
}
pub struct BobEventLoopJoinHandle(JoinHandle<Result<Infallible>>);
impl BobEventLoopJoinHandle {
pub fn abort(&self) {
self.0.abort()
}
}
pub struct AliceEventLoopJoinHandle(JoinHandle<()>);
pub struct TestContext {
btc_amount: bitcoin::Amount,
xmr_amount: monero::Amount,
alice_starting_balances: StartingBalances,
alice_bitcoin_wallet: Arc<bitcoin::Wallet>,
alice_monero_wallet: Arc<monero::Wallet>,
alice_swap_handle: mpsc::Receiver<Swap>,
bob_params: BobParams,
bob_starting_balances: StartingBalances,
bob_bitcoin_wallet: Arc<bitcoin::Wallet>,
bob_monero_wallet: Arc<monero::Wallet>,
}
impl TestContext {
pub async fn alice_next_swap(&mut self) -> alice::Swap {
self.alice_swap_handle.recv().await.unwrap()
}
pub async fn bob_swap(&mut self) -> (bob::Swap, BobEventLoopJoinHandle) {
let (event_loop, event_loop_handle) = self.bob_params.new_eventloop().unwrap();
let swap = self
.bob_params
.builder(event_loop_handle)
.await
.unwrap()
.with_init_params(self.btc_amount)
.build()
.unwrap();
let join_handle = tokio::spawn(event_loop.run());
(swap, BobEventLoopJoinHandle(join_handle))
}
pub async fn stop_and_resume_bob_from_db(
&mut self,
join_handle: BobEventLoopJoinHandle,
) -> (bob::Swap, BobEventLoopJoinHandle) {
join_handle.abort();
let (event_loop, event_loop_handle) = self.bob_params.new_eventloop().unwrap();
let swap = self
.bob_params
.builder(event_loop_handle)
.await
.unwrap()
.build()
.unwrap();
let join_handle = tokio::spawn(event_loop.run());
(swap, BobEventLoopJoinHandle(join_handle))
}
pub async fn assert_alice_redeemed(&mut self, state: AliceState) {
assert!(matches!(state, AliceState::BtcRedeemed));
self.alice_bitcoin_wallet.sync().await.unwrap();
let btc_balance_after_swap = self.alice_bitcoin_wallet.as_ref().balance().await.unwrap();
assert_eq!(
btc_balance_after_swap,
self.alice_starting_balances.btc + self.btc_amount
- bitcoin::Amount::from_sat(bitcoin::TX_FEE)
);
let xmr_balance_after_swap = self
.alice_monero_wallet
.as_ref()
.get_balance()
.await
.unwrap();
assert!(
xmr_balance_after_swap <= self.alice_starting_balances.xmr - self.xmr_amount,
"{} !< {} - {}",
xmr_balance_after_swap,
self.alice_starting_balances.xmr,
self.xmr_amount
);
}
pub async fn assert_alice_refunded(&mut self, state: AliceState) {
assert!(matches!(state, AliceState::XmrRefunded));
self.alice_bitcoin_wallet.sync().await.unwrap();
let btc_balance_after_swap = self.alice_bitcoin_wallet.as_ref().balance().await.unwrap();
assert_eq!(btc_balance_after_swap, self.alice_starting_balances.btc);
// Ensure that Alice's balance is refreshed as we use a newly created wallet
self.alice_monero_wallet.as_ref().refresh().await.unwrap();
let xmr_balance_after_swap = self
.alice_monero_wallet
.as_ref()
.get_balance()
.await
.unwrap();
assert_eq!(xmr_balance_after_swap, self.xmr_amount);
}
pub async fn assert_alice_punished(&self, state: AliceState) {
assert!(matches!(state, AliceState::BtcPunished));
self.alice_bitcoin_wallet.sync().await.unwrap();
let btc_balance_after_swap = self.alice_bitcoin_wallet.as_ref().balance().await.unwrap();
assert_eq!(
btc_balance_after_swap,
self.alice_starting_balances.btc + self.btc_amount
- bitcoin::Amount::from_sat(2 * bitcoin::TX_FEE)
);
let xmr_balance_after_swap = self
.alice_monero_wallet
.as_ref()
.get_balance()
.await
.unwrap();
assert!(xmr_balance_after_swap <= self.alice_starting_balances.xmr - self.xmr_amount);
}
pub async fn assert_bob_redeemed(&self, state: BobState) {
self.bob_bitcoin_wallet.sync().await.unwrap();
let lock_tx_id = if let BobState::XmrRedeemed { tx_lock_id } = state {
tx_lock_id
} else {
panic!("Bob in not in xmr redeemed state: {:?}", state);
};
let lock_tx_bitcoin_fee = self
.bob_bitcoin_wallet
.transaction_fee(lock_tx_id)
.await
.unwrap();
let btc_balance_after_swap = self.bob_bitcoin_wallet.as_ref().balance().await.unwrap();
assert_eq!(
btc_balance_after_swap,
self.bob_starting_balances.btc - self.btc_amount - lock_tx_bitcoin_fee
);
// unload the generated wallet by opening the original wallet
self.bob_monero_wallet.open().await.unwrap();
// refresh the original wallet to make sure the balance is caught up
self.bob_monero_wallet.refresh().await.unwrap();
// Ensure that Bob's balance is refreshed as we use a newly created wallet
self.bob_monero_wallet.as_ref().refresh().await.unwrap();
let xmr_balance_after_swap = self.bob_monero_wallet.as_ref().get_balance().await.unwrap();
assert!(xmr_balance_after_swap > self.bob_starting_balances.xmr);
}
pub async fn assert_bob_refunded(&self, state: BobState) {
self.bob_bitcoin_wallet.sync().await.unwrap();
let lock_tx_id = if let BobState::BtcRefunded(state4) = state {
state4.tx_lock_id()
} else {
panic!("Bob in not in btc refunded state: {:?}", state);
};
let lock_tx_bitcoin_fee = self
.bob_bitcoin_wallet
.transaction_fee(lock_tx_id)
.await
.unwrap();
let btc_balance_after_swap = self.bob_bitcoin_wallet.as_ref().balance().await.unwrap();
let alice_submitted_cancel = btc_balance_after_swap
== self.bob_starting_balances.btc
- lock_tx_bitcoin_fee
- bitcoin::Amount::from_sat(bitcoin::TX_FEE);
let bob_submitted_cancel = btc_balance_after_swap
== self.bob_starting_balances.btc
- lock_tx_bitcoin_fee
- bitcoin::Amount::from_sat(2 * bitcoin::TX_FEE);
// The cancel tx can be submitted by both Alice and Bob.
// Since we cannot be sure who submitted it we have to assert accordingly
assert!(alice_submitted_cancel || bob_submitted_cancel);
let xmr_balance_after_swap = self.bob_monero_wallet.as_ref().get_balance().await.unwrap();
assert_eq!(xmr_balance_after_swap, self.bob_starting_balances.xmr);
}
pub async fn assert_bob_punished(&self, state: BobState) {
self.bob_bitcoin_wallet.sync().await.unwrap();
let lock_tx_id = if let BobState::BtcPunished { tx_lock_id } = state {
tx_lock_id
} else {
panic!("Bob in not in btc punished state: {:?}", state);
};
let lock_tx_bitcoin_fee = self
.bob_bitcoin_wallet
.transaction_fee(lock_tx_id)
.await
.unwrap();
let btc_balance_after_swap = self.bob_bitcoin_wallet.as_ref().balance().await.unwrap();
assert_eq!(
btc_balance_after_swap,
self.bob_starting_balances.btc - self.btc_amount - lock_tx_bitcoin_fee
);
let xmr_balance_after_swap = self.bob_monero_wallet.as_ref().get_balance().await.unwrap();
assert_eq!(xmr_balance_after_swap, self.bob_starting_balances.xmr);
}
}
pub async fn setup_test<T, F, C>(_config: C, testfn: T)
where
T: Fn(TestContext) -> F,
F: Future<Output = Result<()>>,
C: GetConfig,
{
let cli = Cli::default();
let _guard = init_tracing();
let env_config = C::get_config();
let (monero, containers) = testutils::init_containers(&cli).await;
let btc_amount = bitcoin::Amount::from_sat(1_000_000);
let xmr_amount = monero::Amount::from_monero(btc_amount.as_btc() / FixedRate::RATE).unwrap();
let alice_starting_balances = StartingBalances {
xmr: xmr_amount * 10,
btc: bitcoin::Amount::ZERO,
};
let port = get_port().expect("Failed to find a free port");
let alice_listen_address: Multiaddr = format!("/ip4/127.0.0.1/tcp/{}", port)
.parse()
.expect("failed to parse Alice's address");
let electrs_rpc_port = containers
.electrs
.get_host_port(testutils::electrs::RPC_PORT)
.expect("Could not map electrs rpc port");
let alice_seed = Seed::random().unwrap();
let bob_seed = Seed::random().unwrap();
let (alice_bitcoin_wallet, alice_monero_wallet) = init_test_wallets(
MONERO_WALLET_NAME_ALICE,
containers.bitcoind_url.clone(),
&monero,
alice_starting_balances.clone(),
tempdir().unwrap().path(),
electrs_rpc_port,
alice_seed,
env_config,
)
.await;
let db_path = tempdir().unwrap();
let alice_db = Arc::new(Database::open(db_path.path()).unwrap());
let alice_seed = Seed::random().unwrap();
let bob_starting_balances = StartingBalances {
xmr: monero::Amount::ZERO,
btc: btc_amount * 10,
};
let (bob_bitcoin_wallet, bob_monero_wallet) = init_test_wallets(
MONERO_WALLET_NAME_BOB,
containers.bitcoind_url,
&monero,
bob_starting_balances.clone(),
tempdir().unwrap().path(),
electrs_rpc_port,
bob_seed,
env_config,
)
.await;
let (alice_event_loop, alice_swap_handle) = alice::EventLoop::new(
alice_listen_address.clone(),
alice_seed,
env_config,
alice_bitcoin_wallet.clone(),
alice_monero_wallet.clone(),
alice_db,
FixedRate::default(),
bitcoin::Amount::ONE_BTC,
)
.unwrap();
let alice_peer_id = alice_event_loop.peer_id();
tokio::spawn(alice_event_loop.run());
let bob_params = BobParams {
seed: Seed::random().unwrap(),
db_path: tempdir().unwrap().path().to_path_buf(),
swap_id: Uuid::new_v4(),
bitcoin_wallet: bob_bitcoin_wallet.clone(),
monero_wallet: bob_monero_wallet.clone(),
alice_address: alice_listen_address,
alice_peer_id,
env_config,
};
let test = TestContext {
btc_amount,
xmr_amount,
alice_starting_balances,
alice_bitcoin_wallet,
alice_monero_wallet,
alice_swap_handle,
bob_params,
bob_starting_balances,
bob_bitcoin_wallet,
bob_monero_wallet,
};
testfn(test).await.unwrap()
}
fn random_prefix() -> String {
use rand::distributions::Alphanumeric;
use rand::{thread_rng, Rng};
use std::iter;
const LEN: usize = 8;
let mut rng = thread_rng();
let chars: String = iter::repeat(())
.map(|()| rng.sample(Alphanumeric))
.map(char::from)
.take(LEN)
.collect();
chars
}
async fn init_containers(cli: &Cli) -> (Monero, Containers<'_>) {
let prefix = random_prefix();
let bitcoind_name = format!("{}_{}", prefix, "bitcoind");
let (bitcoind, bitcoind_url) =
init_bitcoind_container(&cli, prefix.clone(), bitcoind_name.clone(), prefix.clone())
.await
.expect("could not init bitcoind");
let electrs = init_electrs_container(&cli, prefix.clone(), bitcoind_name, prefix)
.await
.expect("could not init electrs");
let (monero, monerods) = init_monero_container(&cli).await;
(monero, Containers {
bitcoind_url,
bitcoind,
monerods,
electrs,
})
}
async fn init_bitcoind_container(
cli: &Cli,
volume: String,
name: String,
network: String,
) -> Result<(Container<'_, Cli, bitcoind::Bitcoind>, Url)> {
let image = bitcoind::Bitcoind::default().with_volume(volume);
let run_args = RunArgs::default().with_name(name).with_network(network);
let docker = cli.run_with_args(image, run_args);
let a = docker
.get_host_port(testutils::bitcoind::RPC_PORT)
.context("Could not map bitcoind rpc port")?;
let bitcoind_url = {
let input = format!(
"http://{}:{}@localhost:{}",
bitcoind::RPC_USER,
bitcoind::RPC_PASSWORD,
a
);
Url::parse(&input).unwrap()
};
init_bitcoind(bitcoind_url.clone(), 5).await?;
Ok((docker, bitcoind_url.clone()))
}
pub async fn init_electrs_container(
cli: &Cli,
volume: String,
bitcoind_container_name: String,
network: String,
) -> Result<Container<'_, Cli, electrs::Electrs>> {
let bitcoind_rpc_addr = format!(
"{}:{}",
bitcoind_container_name,
testutils::bitcoind::RPC_PORT
);
let image = electrs::Electrs::default()
.with_volume(volume)
.with_daemon_rpc_addr(bitcoind_rpc_addr)
.with_tag("latest");
let run_args = RunArgs::default().with_network(network);
let docker = cli.run_with_args(image, run_args);
Ok(docker)
}
async fn mine(bitcoind_client: Client, reward_address: bitcoin::Address) -> Result<()> {
loop {
tokio::time::sleep(Duration::from_secs(1)).await;
bitcoind_client
.generatetoaddress(1, reward_address.clone(), None)
.await?;
}
}
async fn init_bitcoind(node_url: Url, spendable_quantity: u32) -> Result<Client> {
let bitcoind_client = Client::new(node_url.clone());
bitcoind_client
.createwallet(BITCOIN_TEST_WALLET_NAME, None, None, None, None)
.await?;
let reward_address = bitcoind_client
.with_wallet(BITCOIN_TEST_WALLET_NAME)?
.getnewaddress(None, None)
.await?;
bitcoind_client
.generatetoaddress(101 + spendable_quantity, reward_address.clone(), None)
.await?;
let _ = tokio::spawn(mine(bitcoind_client.clone(), reward_address));
Ok(bitcoind_client)
}
/// Send Bitcoin to the specified address, limited to the spendable bitcoin
/// quantity.
pub async fn mint(node_url: Url, address: bitcoin::Address, amount: bitcoin::Amount) -> Result<()> {
let bitcoind_client = Client::new(node_url.clone());
bitcoind_client
.send_to_address(BITCOIN_TEST_WALLET_NAME, address.clone(), amount)
.await?;
// Confirm the transaction
let reward_address = bitcoind_client
.with_wallet(BITCOIN_TEST_WALLET_NAME)?
.getnewaddress(None, None)
.await?;
bitcoind_client
.generatetoaddress(1, reward_address, None)
.await?;
Ok(())
}
async fn init_monero_container(
cli: &Cli,
) -> (
Monero,
Vec<Container<'_, Cli, monero_harness::image::Monero>>,
) {
let (monero, monerods) = Monero::new(&cli, vec![
MONERO_WALLET_NAME_ALICE.to_string(),
MONERO_WALLET_NAME_BOB.to_string(),
])
.await
.unwrap();
(monero, monerods)
}
#[allow(clippy::too_many_arguments)]
async fn init_test_wallets(
name: &str,
bitcoind_url: Url,
monero: &Monero,
starting_balances: StartingBalances,
datadir: &Path,
electrum_rpc_port: u16,
seed: Seed,
env_config: Config,
) -> (Arc<bitcoin::Wallet>, Arc<monero::Wallet>) {
monero
.init(vec![(name, starting_balances.xmr.as_piconero())])
.await
.unwrap();
let xmr_wallet = swap::monero::Wallet::new_with_client(
monero.wallet(name).unwrap().client(),
name.to_string(),
env_config,
);
let electrum_rpc_url = {
let input = format!("tcp://@localhost:{}", electrum_rpc_port);
Url::parse(&input).unwrap()
};
let btc_wallet = swap::bitcoin::Wallet::new(
electrum_rpc_url,
datadir,
seed.derive_extended_private_key(env_config.bitcoin_network)
.expect("Could not create extended private key from seed"),
env_config,
)
.await
.expect("could not init btc wallet");
if starting_balances.btc != bitcoin::Amount::ZERO {
mint(
bitcoind_url,
btc_wallet.new_address().await.unwrap(),
starting_balances.btc,
)
.await
.expect("could not mint btc starting balance");
let mut interval = interval(Duration::from_secs(1u64));
let mut retries = 0u8;
let max_retries = 30u8;
loop {
retries += 1;
btc_wallet.sync().await.unwrap();
let btc_balance = btc_wallet.balance().await.unwrap();
if btc_balance == starting_balances.btc {
break;
} else if retries == max_retries {
panic!(
"Bitcoin wallet initialization failed, reached max retries upon balance sync"
)
}
interval.tick().await;
}
}
(Arc::new(btc_wallet), Arc::new(xmr_wallet))
}
// This is just to keep the containers alive
#[allow(dead_code)]
struct Containers<'a> {
bitcoind_url: Url,
bitcoind: Container<'a, Cli, bitcoind::Bitcoind>,
monerods: Vec<Container<'a, Cli, image::Monero>>,
electrs: Container<'a, Cli, electrs::Electrs>,
}
/// Utility function to initialize logging in the test environment.
/// Note that you have to keep the `_guard` in scope after calling in test:
///
/// ```rust
/// let _guard = init_tracing();
/// ```
pub fn init_tracing() -> DefaultGuard {
// converts all log records into tracing events
// Note: Make sure to initialize without unwrapping, otherwise this causes
// trouble when running multiple tests.
let _ = LogTracer::init();
use tracing_subscriber::util::SubscriberInitExt as _;
tracing_subscriber::fmt()
.with_env_filter("warn,swap=debug,monero_harness=debug,monero_rpc=info,bitcoin_harness=info,testcontainers=info")
.set_default()
}
pub mod alice_run_until {
use swap::protocol::alice::AliceState;
pub fn is_xmr_locked(state: &AliceState) -> bool {
matches!(state, AliceState::XmrLocked { .. })
}
pub fn is_encsig_learned(state: &AliceState) -> bool {
matches!(state, AliceState::EncSigLearned { .. })
}
}
pub mod bob_run_until {
use swap::protocol::bob::BobState;
pub fn is_btc_locked(state: &BobState) -> bool {
matches!(state, BobState::BtcLocked(..))
}
pub fn is_lock_proof_received(state: &BobState) -> bool {
matches!(state, BobState::XmrLockProofReceived { .. })
}
pub fn is_xmr_locked(state: &BobState) -> bool {
matches!(state, BobState::XmrLocked(..))
}
pub fn is_encsig_sent(state: &BobState) -> bool {
matches!(state, BobState::EncSigSent(..))
}
}
pub struct SlowCancelConfig;
impl GetConfig for SlowCancelConfig {
fn get_config() -> Config {
Config {
bitcoin_cancel_timelock: CancelTimelock::new(180),
..env::Regtest::get_config()
}
}
}
pub struct FastCancelConfig;
impl GetConfig for FastCancelConfig {
fn get_config() -> Config {
Config {
bitcoin_cancel_timelock: CancelTimelock::new(1),
..env::Regtest::get_config()
}
}
}
pub struct FastPunishConfig;
impl GetConfig for FastPunishConfig {
fn get_config() -> Config {
Config {
bitcoin_cancel_timelock: CancelTimelock::new(1),
bitcoin_punish_timelock: PunishTimelock::new(1),
..env::Regtest::get_config()
}
}
}