use crate::testutils::{init_alice, init_bob}; use get_port::get_port; use libp2p::Multiaddr; use rand::rngs::OsRng; use swap::{alice, alice::swap::AliceState, bitcoin, bob, bob::swap::BobState, database::Database}; use tempfile::tempdir; use testcontainers::clients::Cli; use testutils::init_tracing; use tokio::select; use uuid::Uuid; use xmr_btc::config::Config; pub mod testutils; #[tokio::test] async fn given_bob_restarts_after_xmr_is_locked_resume_swap() { let _guard = init_tracing(); let cli = Cli::default(); let ( monero, testutils::Containers { bitcoind, monerods: _monerods, }, ) = testutils::init_containers(&cli).await; let btc_to_swap = bitcoin::Amount::from_sat(1_000_000); let xmr_to_swap = xmr_btc::monero::Amount::from_piconero(1_000_000_000_000); let bob_btc_starting_balance = btc_to_swap * 10; let bob_xmr_starting_balance = xmr_btc::monero::Amount::from_piconero(0); let alice_btc_starting_balance = bitcoin::Amount::ZERO; let alice_xmr_starting_balance = xmr_to_swap * 10; let port = get_port().expect("Failed to find a free port"); let alice_multiaddr: Multiaddr = format!("/ip4/127.0.0.1/tcp/{}", port) .parse() .expect("failed to parse Alice's address"); let ( alice_state, mut alice_event_loop, alice_event_loop_handle, alice_btc_wallet, alice_xmr_wallet, alice_db, ) = init_alice( &bitcoind, &monero, btc_to_swap, xmr_to_swap, alice_xmr_starting_balance, alice_multiaddr.clone(), Config::regtest(), ) .await; let alice_peer_id = alice_event_loop.peer_id(); let (bob_state, bob_event_loop_1, bob_event_loop_handle_1, bob_btc_wallet, bob_xmr_wallet, _) = init_bob( alice_multiaddr.clone(), alice_peer_id.clone(), &bitcoind, &monero, btc_to_swap, bob_btc_starting_balance, xmr_to_swap, Config::regtest(), ) .await; let alice_fut = alice::swap::swap( alice_state, alice_event_loop_handle, alice_btc_wallet.clone(), alice_xmr_wallet.clone(), Config::regtest(), Uuid::new_v4(), alice_db, ); let bob_swap_id = Uuid::new_v4(); let bob_db_datadir = tempdir().unwrap(); let bob_xmr_locked_fut = { let bob_db = Database::open(bob_db_datadir.path()).unwrap(); bob::swap::run_until( bob_state, bob::swap::is_xmr_locked, bob_event_loop_handle_1, bob_db, bob_btc_wallet.clone(), bob_xmr_wallet.clone(), OsRng, bob_swap_id, ) }; tokio::spawn(async move { alice_event_loop.run().await }); let alice_fut_handle = tokio::spawn(alice_fut); // We are selecting with bob_event_loop_1 so that we stop polling on it once // bob reaches `xmr locked` state. let bob_restart_state = select! { res = bob_xmr_locked_fut => res.unwrap(), _ = bob_event_loop_1.run() => panic!("The event loop should never finish") }; let (bob_event_loop_2, bob_event_loop_handle_2) = testutils::init_bob_event_loop(alice_peer_id, alice_multiaddr); let bob_fut = bob::swap::swap( bob_restart_state, bob_event_loop_handle_2, Database::open(bob_db_datadir.path()).unwrap(), bob_btc_wallet.clone(), bob_xmr_wallet.clone(), OsRng, bob_swap_id, ); let bob_final_state = select! { bob_final_state = bob_fut => bob_final_state.unwrap(), _ = bob_event_loop_2.run() => panic!("Event loop is not expected to stop") }; assert!(matches!(bob_final_state, BobState::XmrRedeemed)); // Wait for Alice to finish too. let alice_final_state = alice_fut_handle.await.unwrap().unwrap(); assert!(matches!(alice_final_state, AliceState::BtcRedeemed)); 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, alice_btc_starting_balance + btc_to_swap - bitcoin::Amount::from_sat(bitcoin::TX_FEE) ); assert!(btc_bob_final <= bob_btc_starting_balance - btc_to_swap); assert!(xmr_alice_final <= alice_xmr_starting_balance - xmr_to_swap); assert_eq!(xmr_bob_final, bob_xmr_starting_balance + xmr_to_swap); }