xmr-btc-swap/swap/tests/e2e.rs

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use bitcoin_harness::Bitcoind;
use futures::future::try_join;
use libp2p::{Multiaddr, PeerId};
use monero_harness::Monero;
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use rand::rngs::OsRng;
use std::sync::Arc;
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use swap::{
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alice, alice::swap::AliceState, bob, bob::swap::BobState, network::transport::build,
storage::Database, SwapAmounts, PUNISH_TIMELOCK, REFUND_TIMELOCK,
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};
use tempfile::tempdir;
use testcontainers::clients::Cli;
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use uuid::Uuid;
use xmr_btc::{bitcoin, config::Config, cross_curve_dleq};
/// Run the following tests with RUST_MIN_STACK=10000000
#[tokio::test]
async fn happy_path() {
init_tracing();
let cli = Cli::default();
let bitcoind = Bitcoind::new(&cli, "0.19.1").unwrap();
let _ = bitcoind.init(5).await;
let (monero, _container) =
Monero::new(&cli, None, vec!["alice".to_string(), "bob".to_string()])
.await
.unwrap();
let btc = bitcoin::Amount::from_sat(1_000_000);
let btc_alice = bitcoin::Amount::ZERO;
let btc_bob = btc * 10;
// this xmr value matches the logic of alice::calculate_amounts i.e. btc *
// 10_000 * 100
let xmr = 1_000_000_000_000;
let xmr_alice = xmr * 10;
let xmr_bob = 0;
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let alice_multiaddr: Multiaddr = "/ip4/127.0.0.1/tcp/9876"
.parse()
.expect("failed to parse Alice's address");
let (alice_state, alice_swarm, alice_btc_wallet, alice_xmr_wallet, alice_peer_id) = init_alice(
&bitcoind,
&monero,
btc,
btc_alice,
xmr,
xmr_alice,
alice_multiaddr.clone(),
)
.await;
let (bob_state, bob_swarm, bob_btc_wallet, bob_xmr_wallet, bob_db) = init_bob(
alice_multiaddr,
alice_peer_id,
&bitcoind,
&monero,
btc,
btc_bob,
xmr,
xmr_bob,
)
.await;
let alice_swap = alice::swap::swap(
alice_state,
alice_swarm,
alice_btc_wallet.clone(),
alice_xmr_wallet.clone(),
Config::regtest(),
);
let bob_swap = bob::swap::swap(
bob_state,
bob_swarm,
bob_db,
bob_btc_wallet.clone(),
bob_xmr_wallet.clone(),
OsRng,
Uuid::new_v4(),
);
try_join(alice_swap, bob_swap).await.unwrap();
let btc_alice_final = alice_btc_wallet.as_ref().balance().await.unwrap();
let btc_bob_final = bob_btc_wallet.as_ref().balance().await.unwrap();
let xmr_alice_final = alice_xmr_wallet.as_ref().get_balance().await.unwrap();
bob_xmr_wallet.as_ref().0.refresh().await.unwrap();
let xmr_bob_final = bob_xmr_wallet.as_ref().get_balance().await.unwrap();
assert_eq!(
btc_alice_final,
btc_alice + btc - bitcoin::Amount::from_sat(bitcoin::TX_FEE)
);
assert!(btc_bob_final <= btc_bob - btc);
assert!(xmr_alice_final.as_piconero() <= xmr_alice - xmr);
assert_eq!(xmr_bob_final.as_piconero(), xmr_bob + xmr);
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}
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/// Bob locks Btc and Alice locks Xmr. Bob does not act; he fails to send Alice
/// the encsig and fail to refund or redeem. Alice punishes.
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#[tokio::test]
async fn alice_punishes_if_bob_never_acts_after_fund() {
init_tracing();
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let cli = Cli::default();
let bitcoind = Bitcoind::new(&cli, "0.19.1").unwrap();
let _ = bitcoind.init(5).await;
let (monero, _container) =
Monero::new(&cli, None, vec!["alice".to_string(), "bob".to_string()])
.await
.unwrap();
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let btc_to_swap = bitcoin::Amount::from_sat(1_000_000);
let xmr_to_swap = 1_000_000_000_000;
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let bob_btc_starting_balance = btc_to_swap * 10;
let bob_xmr_starting_balance = 0;
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let alice_btc_starting_balance = bitcoin::Amount::ZERO;
let alice_xmr_starting_balance = xmr_to_swap * 10;
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let alice_multiaddr: Multiaddr = "/ip4/127.0.0.1/tcp/9877"
.parse()
.expect("failed to parse Alice's address");
let (alice_state, alice_swarm, alice_btc_wallet, alice_xmr_wallet, alice_peer_id) = init_alice(
&bitcoind,
&monero,
btc_to_swap,
alice_btc_starting_balance,
xmr_to_swap,
alice_xmr_starting_balance,
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alice_multiaddr.clone(),
)
.await;
let (bob_state, bob_swarm, bob_btc_wallet, bob_xmr_wallet, bob_db) = init_bob(
alice_multiaddr,
alice_peer_id,
&bitcoind,
&monero,
btc_to_swap,
bob_btc_starting_balance,
xmr_to_swap,
bob_xmr_starting_balance,
)
.await;
let bob_xmr_locked_fut = bob::swap::run_until(
bob_state,
bob::swap::is_xmr_locked,
bob_swarm,
bob_db,
bob_btc_wallet.clone(),
bob_xmr_wallet.clone(),
OsRng,
Uuid::new_v4(),
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);
let alice_xmr_locked_fut = alice::swap::run_until(
alice_state,
alice::swap::is_xmr_locked,
alice_swarm,
alice_btc_wallet.clone(),
alice_xmr_wallet.clone(),
Config::regtest(),
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);
// Wait until alice has locked xmr and bob has locked btc
let ((alice_state, alice_swarm), _bob_state) =
try_join(alice_xmr_locked_fut, bob_xmr_locked_fut)
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.await
.unwrap();
let (punished, _) = alice::swap::swap(
alice_state,
alice_swarm,
alice_btc_wallet.clone(),
alice_xmr_wallet.clone(),
Config::regtest(),
)
.await
.unwrap();
assert!(matches!(punished, AliceState::Punished));
// todo: Add balance assertions
}
#[allow(clippy::too_many_arguments)]
async fn init_alice(
bitcoind: &Bitcoind<'_>,
monero: &Monero,
btc_to_swap: bitcoin::Amount,
_btc_starting_balance: bitcoin::Amount,
xmr_to_swap: u64,
xmr_starting_balance: u64,
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alice_multiaddr: Multiaddr,
) -> (
AliceState,
alice::Swarm,
Arc<swap::bitcoin::Wallet>,
Arc<swap::monero::Wallet>,
PeerId,
) {
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monero
.init(vec![("alice", xmr_starting_balance)])
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.await
.unwrap();
let alice_xmr_wallet = Arc::new(swap::monero::Wallet(
monero.wallet("alice").unwrap().client(),
));
let alice_btc_wallet = Arc::new(
swap::bitcoin::Wallet::new("alice", bitcoind.node_url.clone())
.await
.unwrap(),
);
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let amounts = SwapAmounts {
btc: btc_to_swap,
xmr: xmr_btc::monero::Amount::from_piconero(xmr_to_swap),
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};
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let alice_behaviour = alice::Behaviour::default();
let alice_peer_id = alice_behaviour.peer_id();
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let alice_transport = build(alice_behaviour.identity()).unwrap();
let rng = &mut OsRng;
let alice_state = {
let a = bitcoin::SecretKey::new_random(rng);
let s_a = cross_curve_dleq::Scalar::random(rng);
let v_a = xmr_btc::monero::PrivateViewKey::new_random(rng);
AliceState::Started {
amounts,
a,
s_a,
v_a,
}
};
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let alice_swarm = alice::new_swarm(alice_multiaddr, alice_transport, alice_behaviour).unwrap();
(
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alice_state,
alice_swarm,
alice_btc_wallet,
alice_xmr_wallet,
alice_peer_id,
)
}
#[allow(clippy::too_many_arguments)]
async fn init_bob(
alice_multiaddr: Multiaddr,
alice_peer_id: PeerId,
bitcoind: &Bitcoind<'_>,
monero: &Monero,
btc_to_swap: bitcoin::Amount,
btc_starting_balance: bitcoin::Amount,
xmr_to_swap: u64,
xmr_stating_balance: u64,
) -> (
BobState,
bob::Swarm,
Arc<swap::bitcoin::Wallet>,
Arc<swap::monero::Wallet>,
Database,
) {
let bob_btc_wallet = Arc::new(
swap::bitcoin::Wallet::new("bob", bitcoind.node_url.clone())
.await
.unwrap(),
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);
bitcoind
.mint(
bob_btc_wallet.0.new_address().await.unwrap(),
btc_starting_balance,
)
.await
.unwrap();
monero
.init(vec![("bob", xmr_stating_balance)])
.await
.unwrap();
let bob_xmr_wallet = Arc::new(swap::monero::Wallet(monero.wallet("bob").unwrap().client()));
let amounts = SwapAmounts {
btc: btc_to_swap,
xmr: xmr_btc::monero::Amount::from_piconero(xmr_to_swap),
};
let rng = &mut OsRng;
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let bob_db_dir = tempdir().unwrap();
let bob_db = Database::open(bob_db_dir.path()).unwrap();
let bob_behaviour = bob::Behaviour::default();
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let bob_transport = build(bob_behaviour.identity()).unwrap();
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let refund_address = bob_btc_wallet.new_address().await.unwrap();
let state0 = xmr_btc::bob::State0::new(
rng,
btc_to_swap,
xmr_btc::monero::Amount::from_piconero(xmr_to_swap),
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REFUND_TIMELOCK,
PUNISH_TIMELOCK,
refund_address,
);
let bob_state = BobState::Started {
state0,
amounts,
peer_id: alice_peer_id,
addr: alice_multiaddr,
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};
let bob_swarm = bob::new_swarm(bob_transport, bob_behaviour).unwrap();
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(bob_state, bob_swarm, bob_btc_wallet, bob_xmr_wallet, bob_db)
}
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fn init_tracing() {
use tracing_subscriber::util::SubscriberInitExt as _;
let _guard = tracing_subscriber::fmt()
.with_env_filter("swap=info,xmr_btc=info")
.with_ansi(false)
.set_default();
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}