Drop Result for ChannelMessageHandler methods
[rust-lightning] / lightning / src / ln / functional_test_utils.rs
index e99e96097aade150ee0ffed542ef7ce5ec72098b..f3b3302eae39658853e7e11089905ca9c9f91ad6 100644 (file)
@@ -180,8 +180,8 @@ pub fn create_funding_transaction(node: &Node, expected_chan_value: u64, expecte
 
 pub fn create_chan_between_nodes_with_value_init(node_a: &Node, node_b: &Node, channel_value: u64, push_msat: u64, a_flags: LocalFeatures, b_flags: LocalFeatures) -> Transaction {
        node_a.node.create_channel(node_b.node.get_our_node_id(), channel_value, push_msat, 42).unwrap();
-       node_b.node.handle_open_channel(&node_a.node.get_our_node_id(), a_flags, &get_event_msg!(node_a, MessageSendEvent::SendOpenChannel, node_b.node.get_our_node_id())).unwrap();
-       node_a.node.handle_accept_channel(&node_b.node.get_our_node_id(), b_flags, &get_event_msg!(node_b, MessageSendEvent::SendAcceptChannel, node_a.node.get_our_node_id())).unwrap();
+       node_b.node.handle_open_channel(&node_a.node.get_our_node_id(), a_flags, &get_event_msg!(node_a, MessageSendEvent::SendOpenChannel, node_b.node.get_our_node_id()));
+       node_a.node.handle_accept_channel(&node_b.node.get_our_node_id(), b_flags, &get_event_msg!(node_b, MessageSendEvent::SendAcceptChannel, node_a.node.get_our_node_id()));
 
        let (temporary_channel_id, tx, funding_output) = create_funding_transaction(node_a, channel_value, 42);
 
@@ -193,7 +193,7 @@ pub fn create_chan_between_nodes_with_value_init(node_a: &Node, node_b: &Node, c
                added_monitors.clear();
        }
 
-       node_b.node.handle_funding_created(&node_a.node.get_our_node_id(), &get_event_msg!(node_a, MessageSendEvent::SendFundingCreated, node_b.node.get_our_node_id())).unwrap();
+       node_b.node.handle_funding_created(&node_a.node.get_our_node_id(), &get_event_msg!(node_a, MessageSendEvent::SendFundingCreated, node_b.node.get_our_node_id()));
        {
                let mut added_monitors = node_b.chan_monitor.added_monitors.lock().unwrap();
                assert_eq!(added_monitors.len(), 1);
@@ -201,7 +201,7 @@ pub fn create_chan_between_nodes_with_value_init(node_a: &Node, node_b: &Node, c
                added_monitors.clear();
        }
 
-       node_a.node.handle_funding_signed(&node_b.node.get_our_node_id(), &get_event_msg!(node_b, MessageSendEvent::SendFundingSigned, node_a.node.get_our_node_id())).unwrap();
+       node_a.node.handle_funding_signed(&node_b.node.get_our_node_id(), &get_event_msg!(node_b, MessageSendEvent::SendFundingSigned, node_a.node.get_our_node_id()));
        {
                let mut added_monitors = node_a.chan_monitor.added_monitors.lock().unwrap();
                assert_eq!(added_monitors.len(), 1);
@@ -224,7 +224,7 @@ pub fn create_chan_between_nodes_with_value_init(node_a: &Node, node_b: &Node, c
 
 pub fn create_chan_between_nodes_with_value_confirm_first(node_recv: &Node, node_conf: &Node, tx: &Transaction) {
        confirm_transaction(&node_conf.block_notifier, &node_conf.chain_monitor, &tx, tx.version);
-       node_recv.node.handle_funding_locked(&node_conf.node.get_our_node_id(), &get_event_msg!(node_conf, MessageSendEvent::SendFundingLocked, node_recv.node.get_our_node_id())).unwrap();
+       node_recv.node.handle_funding_locked(&node_conf.node.get_our_node_id(), &get_event_msg!(node_conf, MessageSendEvent::SendFundingLocked, node_recv.node.get_our_node_id()));
 }
 
 pub fn create_chan_between_nodes_with_value_confirm_second(node_recv: &Node, node_conf: &Node) -> ((msgs::FundingLocked, msgs::AnnouncementSignatures), [u8; 32]) {
@@ -260,9 +260,9 @@ pub fn create_chan_between_nodes_with_value_a(node_a: &Node, node_b: &Node, chan
 }
 
 pub fn create_chan_between_nodes_with_value_b(node_a: &Node, node_b: &Node, as_funding_msgs: &(msgs::FundingLocked, msgs::AnnouncementSignatures)) -> (msgs::ChannelAnnouncement, msgs::ChannelUpdate, msgs::ChannelUpdate) {
-       node_b.node.handle_funding_locked(&node_a.node.get_our_node_id(), &as_funding_msgs.0).unwrap();
+       node_b.node.handle_funding_locked(&node_a.node.get_our_node_id(), &as_funding_msgs.0);
        let bs_announcement_sigs = get_event_msg!(node_b, MessageSendEvent::SendAnnouncementSignatures, node_a.node.get_our_node_id());
-       node_b.node.handle_announcement_signatures(&node_a.node.get_our_node_id(), &as_funding_msgs.1).unwrap();
+       node_b.node.handle_announcement_signatures(&node_a.node.get_our_node_id(), &as_funding_msgs.1);
 
        let events_7 = node_b.node.get_and_clear_pending_msg_events();
        assert_eq!(events_7.len(), 1);
@@ -273,7 +273,7 @@ pub fn create_chan_between_nodes_with_value_b(node_a: &Node, node_b: &Node, as_f
                _ => panic!("Unexpected event"),
        };
 
-       node_a.node.handle_announcement_signatures(&node_b.node.get_our_node_id(), &bs_announcement_sigs).unwrap();
+       node_a.node.handle_announcement_signatures(&node_b.node.get_our_node_id(), &bs_announcement_sigs);
        let events_8 = node_a.node.get_and_clear_pending_msg_events();
        assert_eq!(events_8.len(), 1);
        let as_update = match events_8[0] {
@@ -344,15 +344,24 @@ macro_rules! get_closing_signed_broadcast {
 }
 
 macro_rules! check_closed_broadcast {
-       ($node: expr) => {{
+       ($node: expr, $with_error_msg: expr) => {{
                let events = $node.node.get_and_clear_pending_msg_events();
-               assert_eq!(events.len(), 1);
+               assert_eq!(events.len(), if $with_error_msg { 2 } else { 1 });
                match events[0] {
                        MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
                                assert_eq!(msg.contents.flags & 2, 2);
                        },
                        _ => panic!("Unexpected event"),
                }
+               if $with_error_msg {
+                       match events[1] {
+                               MessageSendEvent::HandleError { action: ErrorAction::SendErrorMessage { ref msg }, node_id: _ } => {
+                                       // TODO: Check node_id
+                                       Some(msg.clone())
+                               },
+                               _ => panic!("Unexpected event"),
+                       }
+               } else { None }
        }}
 }
 
@@ -362,7 +371,7 @@ pub fn close_channel(outbound_node: &Node, inbound_node: &Node, channel_id: &[u8
        let (tx_a, tx_b);
 
        node_a.close_channel(channel_id).unwrap();
-       node_b.handle_shutdown(&node_a.get_our_node_id(), &get_event_msg!(struct_a, MessageSendEvent::SendShutdown, node_b.get_our_node_id())).unwrap();
+       node_b.handle_shutdown(&node_a.get_our_node_id(), &get_event_msg!(struct_a, MessageSendEvent::SendShutdown, node_b.get_our_node_id()));
 
        let events_1 = node_b.get_and_clear_pending_msg_events();
        assert!(events_1.len() >= 1);
@@ -387,15 +396,15 @@ pub fn close_channel(outbound_node: &Node, inbound_node: &Node, channel_id: &[u8
                })
        };
 
-       node_a.handle_shutdown(&node_b.get_our_node_id(), &shutdown_b).unwrap();
+       node_a.handle_shutdown(&node_b.get_our_node_id(), &shutdown_b);
        let (as_update, bs_update) = if close_inbound_first {
                assert!(node_a.get_and_clear_pending_msg_events().is_empty());
-               node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap()).unwrap();
+               node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap());
                assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1);
                tx_a = broadcaster_a.txn_broadcasted.lock().unwrap().remove(0);
                let (as_update, closing_signed_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id());
 
-               node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a.unwrap()).unwrap();
+               node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a.unwrap());
                let (bs_update, none_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id());
                assert!(none_b.is_none());
                assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1);
@@ -404,12 +413,12 @@ pub fn close_channel(outbound_node: &Node, inbound_node: &Node, channel_id: &[u8
        } else {
                let closing_signed_a = get_event_msg!(struct_a, MessageSendEvent::SendClosingSigned, node_b.get_our_node_id());
 
-               node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a).unwrap();
+               node_b.handle_closing_signed(&node_a.get_our_node_id(), &closing_signed_a);
                assert_eq!(broadcaster_b.txn_broadcasted.lock().unwrap().len(), 1);
                tx_b = broadcaster_b.txn_broadcasted.lock().unwrap().remove(0);
                let (bs_update, closing_signed_b) = get_closing_signed_broadcast!(node_b, node_a.get_our_node_id());
 
-               node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap()).unwrap();
+               node_a.handle_closing_signed(&node_b.get_our_node_id(), &closing_signed_b.unwrap());
                let (as_update, none_a) = get_closing_signed_broadcast!(node_a, node_b.get_our_node_id());
                assert!(none_a.is_none());
                assert_eq!(broadcaster_a.txn_broadcasted.lock().unwrap().len(), 1);
@@ -465,7 +474,7 @@ macro_rules! commitment_signed_dance {
                {
                        check_added_monitors!($node_a, 0);
                        assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
-                       $node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed).unwrap();
+                       $node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed);
                        check_added_monitors!($node_a, 1);
                        commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, false);
                }
@@ -475,10 +484,10 @@ macro_rules! commitment_signed_dance {
                        let (as_revoke_and_ack, as_commitment_signed) = get_revoke_commit_msgs!($node_a, $node_b.node.get_our_node_id());
                        check_added_monitors!($node_b, 0);
                        assert!($node_b.node.get_and_clear_pending_msg_events().is_empty());
-                       $node_b.node.handle_revoke_and_ack(&$node_a.node.get_our_node_id(), &as_revoke_and_ack).unwrap();
+                       $node_b.node.handle_revoke_and_ack(&$node_a.node.get_our_node_id(), &as_revoke_and_ack);
                        assert!($node_b.node.get_and_clear_pending_msg_events().is_empty());
                        check_added_monitors!($node_b, 1);
-                       $node_b.node.handle_commitment_signed(&$node_a.node.get_our_node_id(), &as_commitment_signed).unwrap();
+                       $node_b.node.handle_commitment_signed(&$node_a.node.get_our_node_id(), &as_commitment_signed);
                        let (bs_revoke_and_ack, extra_msg_option) = {
                                let events = $node_b.node.get_and_clear_pending_msg_events();
                                assert!(events.len() <= 2);
@@ -502,7 +511,7 @@ macro_rules! commitment_signed_dance {
                {
                        check_added_monitors!($node_a, 0);
                        assert!($node_a.node.get_and_clear_pending_msg_events().is_empty());
-                       $node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed).unwrap();
+                       $node_a.node.handle_commitment_signed(&$node_b.node.get_our_node_id(), &$commitment_signed);
                        check_added_monitors!($node_a, 1);
                        let (extra_msg_option, bs_revoke_and_ack) = commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true, true);
                        assert!(extra_msg_option.is_none());
@@ -512,7 +521,7 @@ macro_rules! commitment_signed_dance {
        ($node_a: expr, $node_b: expr, (), $fail_backwards: expr, true /* skip last step */, true /* return extra message */) => {
                {
                        let (extra_msg_option, bs_revoke_and_ack) = commitment_signed_dance!($node_a, $node_b, (), $fail_backwards, true, true, true);
-                       $node_a.node.handle_revoke_and_ack(&$node_b.node.get_our_node_id(), &bs_revoke_and_ack).unwrap();
+                       $node_a.node.handle_revoke_and_ack(&$node_b.node.get_our_node_id(), &bs_revoke_and_ack);
                        check_added_monitors!($node_a, 1);
                        extra_msg_option
                }
@@ -605,7 +614,7 @@ pub fn send_along_route_with_hash(origin_node: &Node, route: Route, expected_rou
        for (idx, &node) in expected_route.iter().enumerate() {
                assert_eq!(node.node.get_our_node_id(), payment_event.node_id);
 
-               node.node.handle_update_add_htlc(&prev_node.node.get_our_node_id(), &payment_event.msgs[0]).unwrap();
+               node.node.handle_update_add_htlc(&prev_node.node.get_our_node_id(), &payment_event.msgs[0]);
                check_added_monitors!(node, 0);
                commitment_signed_dance!(node, prev_node, payment_event.commitment_msg, false);
 
@@ -669,7 +678,7 @@ pub fn claim_payment_along_route(origin_node: &Node, expected_route: &[&Node], s
        macro_rules! last_update_fulfill_dance {
                ($node: expr, $prev_node: expr) => {
                        {
-                               $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0).unwrap();
+                               $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
                                check_added_monitors!($node, 0);
                                assert!($node.node.get_and_clear_pending_msg_events().is_empty());
                                commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, false);
@@ -679,7 +688,7 @@ pub fn claim_payment_along_route(origin_node: &Node, expected_route: &[&Node], s
        macro_rules! mid_update_fulfill_dance {
                ($node: expr, $prev_node: expr, $new_msgs: expr) => {
                        {
-                               $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0).unwrap();
+                               $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
                                check_added_monitors!($node, 1);
                                let new_next_msgs = if $new_msgs {
                                        get_next_msgs!($node)
@@ -763,7 +772,7 @@ pub fn fail_payment_along_route(origin_node: &Node, expected_route: &[&Node], sk
        macro_rules! update_fail_dance {
                ($node: expr, $prev_node: expr, $last_node: expr) => {
                        {
-                               $node.node.handle_update_fail_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0).unwrap();
+                               $node.node.handle_update_fail_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0);
                                commitment_signed_dance!($node, $prev_node, next_msgs.as_ref().unwrap().1, !$last_node);
                                if skip_last && $last_node {
                                        expect_pending_htlcs_forwardable!($node);
@@ -1106,7 +1115,7 @@ pub fn reconnect_nodes(node_a: &Node, node_b: &Node, send_funding_locked: (bool,
 
        let mut resp_1 = Vec::new();
        for msg in reestablish_1 {
-               node_b.node.handle_channel_reestablish(&node_a.node.get_our_node_id(), &msg).unwrap();
+               node_b.node.handle_channel_reestablish(&node_a.node.get_our_node_id(), &msg);
                resp_1.push(handle_chan_reestablish_msgs!(node_b, node_a));
        }
        if pending_cell_htlc_claims.0 != 0 || pending_cell_htlc_fails.0 != 0 {
@@ -1117,7 +1126,7 @@ pub fn reconnect_nodes(node_a: &Node, node_b: &Node, send_funding_locked: (bool,
 
        let mut resp_2 = Vec::new();
        for msg in reestablish_2 {
-               node_a.node.handle_channel_reestablish(&node_b.node.get_our_node_id(), &msg).unwrap();
+               node_a.node.handle_channel_reestablish(&node_b.node.get_our_node_id(), &msg);
                resp_2.push(handle_chan_reestablish_msgs!(node_a, node_b));
        }
        if pending_cell_htlc_claims.1 != 0 || pending_cell_htlc_fails.1 != 0 {
@@ -1132,7 +1141,7 @@ pub fn reconnect_nodes(node_a: &Node, node_b: &Node, send_funding_locked: (bool,
 
        for chan_msgs in resp_1.drain(..) {
                if send_funding_locked.0 {
-                       node_a.node.handle_funding_locked(&node_b.node.get_our_node_id(), &chan_msgs.0.unwrap()).unwrap();
+                       node_a.node.handle_funding_locked(&node_b.node.get_our_node_id(), &chan_msgs.0.unwrap());
                        let announcement_event = node_a.node.get_and_clear_pending_msg_events();
                        if !announcement_event.is_empty() {
                                assert_eq!(announcement_event.len(), 1);
@@ -1145,7 +1154,7 @@ pub fn reconnect_nodes(node_a: &Node, node_b: &Node, send_funding_locked: (bool,
                }
                if pending_raa.0 {
                        assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst);
-                       node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &chan_msgs.1.unwrap()).unwrap();
+                       node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &chan_msgs.1.unwrap());
                        assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
                        check_added_monitors!(node_a, 1);
                } else {
@@ -1162,23 +1171,23 @@ pub fn reconnect_nodes(node_a: &Node, node_b: &Node, send_funding_locked: (bool,
                        assert_eq!(commitment_update.update_fail_htlcs.len(), pending_cell_htlc_fails.0);
                        assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
                        for update_add in commitment_update.update_add_htlcs {
-                               node_a.node.handle_update_add_htlc(&node_b.node.get_our_node_id(), &update_add).unwrap();
+                               node_a.node.handle_update_add_htlc(&node_b.node.get_our_node_id(), &update_add);
                        }
                        for update_fulfill in commitment_update.update_fulfill_htlcs {
-                               node_a.node.handle_update_fulfill_htlc(&node_b.node.get_our_node_id(), &update_fulfill).unwrap();
+                               node_a.node.handle_update_fulfill_htlc(&node_b.node.get_our_node_id(), &update_fulfill);
                        }
                        for update_fail in commitment_update.update_fail_htlcs {
-                               node_a.node.handle_update_fail_htlc(&node_b.node.get_our_node_id(), &update_fail).unwrap();
+                               node_a.node.handle_update_fail_htlc(&node_b.node.get_our_node_id(), &update_fail);
                        }
 
                        if pending_htlc_adds.0 != -1 { // We use -1 to denote a response commitment_signed
                                commitment_signed_dance!(node_a, node_b, commitment_update.commitment_signed, false);
                        } else {
-                               node_a.node.handle_commitment_signed(&node_b.node.get_our_node_id(), &commitment_update.commitment_signed).unwrap();
+                               node_a.node.handle_commitment_signed(&node_b.node.get_our_node_id(), &commitment_update.commitment_signed);
                                check_added_monitors!(node_a, 1);
                                let as_revoke_and_ack = get_event_msg!(node_a, MessageSendEvent::SendRevokeAndACK, node_b.node.get_our_node_id());
                                // No commitment_signed so get_event_msg's assert(len == 1) passes
-                               node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &as_revoke_and_ack).unwrap();
+                               node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &as_revoke_and_ack);
                                assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
                                check_added_monitors!(node_b, 1);
                        }
@@ -1189,7 +1198,7 @@ pub fn reconnect_nodes(node_a: &Node, node_b: &Node, send_funding_locked: (bool,
 
        for chan_msgs in resp_2.drain(..) {
                if send_funding_locked.1 {
-                       node_b.node.handle_funding_locked(&node_a.node.get_our_node_id(), &chan_msgs.0.unwrap()).unwrap();
+                       node_b.node.handle_funding_locked(&node_a.node.get_our_node_id(), &chan_msgs.0.unwrap());
                        let announcement_event = node_b.node.get_and_clear_pending_msg_events();
                        if !announcement_event.is_empty() {
                                assert_eq!(announcement_event.len(), 1);
@@ -1202,7 +1211,7 @@ pub fn reconnect_nodes(node_a: &Node, node_b: &Node, send_funding_locked: (bool,
                }
                if pending_raa.1 {
                        assert!(chan_msgs.3 == RAACommitmentOrder::RevokeAndACKFirst);
-                       node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &chan_msgs.1.unwrap()).unwrap();
+                       node_b.node.handle_revoke_and_ack(&node_a.node.get_our_node_id(), &chan_msgs.1.unwrap());
                        assert!(node_b.node.get_and_clear_pending_msg_events().is_empty());
                        check_added_monitors!(node_b, 1);
                } else {
@@ -1217,23 +1226,23 @@ pub fn reconnect_nodes(node_a: &Node, node_b: &Node, send_funding_locked: (bool,
                        assert_eq!(commitment_update.update_fail_htlcs.len(), pending_cell_htlc_fails.0);
                        assert!(commitment_update.update_fail_malformed_htlcs.is_empty());
                        for update_add in commitment_update.update_add_htlcs {
-                               node_b.node.handle_update_add_htlc(&node_a.node.get_our_node_id(), &update_add).unwrap();
+                               node_b.node.handle_update_add_htlc(&node_a.node.get_our_node_id(), &update_add);
                        }
                        for update_fulfill in commitment_update.update_fulfill_htlcs {
-                               node_b.node.handle_update_fulfill_htlc(&node_a.node.get_our_node_id(), &update_fulfill).unwrap();
+                               node_b.node.handle_update_fulfill_htlc(&node_a.node.get_our_node_id(), &update_fulfill);
                        }
                        for update_fail in commitment_update.update_fail_htlcs {
-                               node_b.node.handle_update_fail_htlc(&node_a.node.get_our_node_id(), &update_fail).unwrap();
+                               node_b.node.handle_update_fail_htlc(&node_a.node.get_our_node_id(), &update_fail);
                        }
 
                        if pending_htlc_adds.1 != -1 { // We use -1 to denote a response commitment_signed
                                commitment_signed_dance!(node_b, node_a, commitment_update.commitment_signed, false);
                        } else {
-                               node_b.node.handle_commitment_signed(&node_a.node.get_our_node_id(), &commitment_update.commitment_signed).unwrap();
+                               node_b.node.handle_commitment_signed(&node_a.node.get_our_node_id(), &commitment_update.commitment_signed);
                                check_added_monitors!(node_b, 1);
                                let bs_revoke_and_ack = get_event_msg!(node_b, MessageSendEvent::SendRevokeAndACK, node_a.node.get_our_node_id());
                                // No commitment_signed so get_event_msg's assert(len == 1) passes
-                               node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &bs_revoke_and_ack).unwrap();
+                               node_a.node.handle_revoke_and_ack(&node_b.node.get_our_node_id(), &bs_revoke_and_ack);
                                assert!(node_a.node.get_and_clear_pending_msg_events().is_empty());
                                check_added_monitors!(node_a, 1);
                        }