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

pub mod harness;

use harness::bob_run_until::is_btc_locked;
use harness::FastPunishConfig;
use swap::asb::FixedRate;
use swap::protocol::bob::BobState;
use swap::protocol::{alice, bob};

/// 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. Bob then cooperates with Alice and redeems XMR with her key.
#[tokio::test]
async fn alice_punishes_if_bob_never_acts_after_fund() {
    harness::setup_test(FastPunishConfig, |mut ctx| async move {
        let (bob_swap, bob_join_handle) = ctx.bob_swap().await;
        let bob_swap_id = bob_swap.id;
        let bob_swap = tokio::spawn(bob::run_until(bob_swap, is_btc_locked));

        let alice_swap = ctx.alice_next_swap().await;
        let alice_swap = tokio::spawn(alice::run(alice_swap, FixedRate::default()));

        let bob_state = bob_swap.await??;
        assert!(matches!(bob_state, BobState::BtcLocked { .. }));

        let alice_state = alice_swap.await??;
        ctx.assert_alice_punished(alice_state).await;

        // Restart Bob after Alice punished to ensure Bob transitions to
        // punished and does not run indefinitely
        let (bob_swap, _) = ctx
            .stop_and_resume_bob_from_db(bob_join_handle, bob_swap_id)
            .await;
        assert!(matches!(bob_swap.state, BobState::BtcLocked { .. }));

        let bob_state = bob::run(bob_swap).await?;
        ctx.assert_bob_redeemed(bob_state).await;
        Ok(())
    })
    .await;
}