Test Alice refunds if restarted and Bob refunded

.github/workflows/ci.yml

@@ -115,7 +115,8 @@ jobs:
             bob_refunds_using_cancel_and_refund_command_timelock_not_expired,
             bob_refunds_using_cancel_and_refund_command_timelock_not_expired_force,
             punish,
-            alice_punishes_after_restart_punish_timelock_expired
+            alice_punishes_after_restart_punish_timelock_expired,
+            alice_refunds_after_restart_bob_refunded
         ]
     runs-on: ubuntu-latest
     steps:

bors.toml

@@ -14,5 +14,6 @@ status = [
     "docker_tests (bob_refunds_using_cancel_and_refund_command_timelock_not_expired_force)",
     "docker_tests (bob_refunds_using_cancel_and_refund_command_timelock_not_expired)",
     "docker_tests (punish)",
-    "docker_tests (alice_punishes_after_restart_punish_timelock_expired)"
+    "docker_tests (alice_punishes_after_restart_punish_timelock_expired)",
+    "docker_tests (alice_refunds_after_restart_bob_refunded)"
 ]

swap/tests/alice_refunds_after_restart_bob_refunded.rs

@@ -0,0 +1,38 @@
+pub mod harness;
+
+use harness::alice_run_until::is_xmr_lock_transaction_sent;
+use harness::FastCancelConfig;
+use swap::protocol::alice::AliceState;
+use swap::protocol::{alice, bob};
+
+/// Bob locks Btc and Alice locks Xmr. Alice does not act so Bob refunds.
+/// Eventually Alice comes back online and refunds as well.
+#[tokio::test]
+async fn alice_refunds_after_restart_if_bob_already_refunded() {
+    harness::setup_test(FastCancelConfig, |mut ctx| async move {
+        let (bob_swap, _) = ctx.bob_swap().await;
+        let bob_swap = tokio::spawn(bob::run(bob_swap));
+
+        let alice_swap = ctx.alice_next_swap().await;
+        let alice_swap = tokio::spawn(alice::run_until(alice_swap, is_xmr_lock_transaction_sent));
+
+        let bob_state = bob_swap.await??;
+        ctx.assert_bob_refunded(bob_state).await;
+
+        let alice_state = alice_swap.await??;
+        assert!(matches!(
+            alice_state,
+            AliceState::XmrLockTransactionSent { .. }
+        ));
+
+        ctx.restart_alice().await;
+        let alice_swap = ctx.alice_next_swap().await;
+        let alice_swap = tokio::spawn(alice::run(alice_swap));
+
+        let alice_state = alice_swap.await??;
+        ctx.assert_alice_refunded(alice_state).await;
+
+        Ok(())
+    })
+    .await;
+}