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Add 2-inbound-in-flight update_fee test (that we wouldn't generate)

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Matt Corallo 2018-09-27 17:46:08 -04:00
parent b9a155d75f
commit 1d1c5da13d
1 changed files with 103 additions and 0 deletions
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103
src/ln/channelmanager.rs
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@ -3212,6 +3212,109 @@ mod tests {
// We can't continue, sadly, because our (1) now has a bogus signature
}
#[test]
fn test_multi_flight_update_fee() {
let nodes = create_network(2);
let chan = create_announced_chan_between_nodes(&nodes, 0, 1);
let channel_id = chan.2;
macro_rules! get_feerate {
($node: expr) => {{
let chan_lock = $node.node.channel_state.lock().unwrap();
let chan = chan_lock.by_id.get(&channel_id).unwrap();
chan.get_feerate()
}}
}
// A B
// update_fee/commitment_signed ->
// .- send (1) RAA and (2) commitment_signed
// update_fee (never committed) ->
// (3) update_fee ->
// We have to manually generate the above update_fee, it is allowed by the protocol but we
// don't track which updates correspond to which revoke_and_ack responses so we're in
// AwaitingRAA mode and will not generate the update_fee yet.
// <- (1) RAA delivered
// (3) is generated and send (4) CS -.
// Note that A cannot generate (4) prior to (1) being delivered as it otherwise doesn't
// know the per_commitment_point to use for it.
// <- (2) commitment_signed delivered
// revoke_and_ack ->
// B should send no response here
// (4) commitment_signed delivered ->
// <- RAA/commitment_signed delivered
// revoke_and_ack ->
// First nodes[0] generates an update_fee
let initial_feerate = get_feerate!(nodes[0]);
nodes[0].node.update_fee(channel_id, initial_feerate + 20).unwrap();
check_added_monitors!(nodes[0], 1);
let events_0 = nodes[0].node.get_and_clear_pending_events();
assert_eq!(events_0.len(), 1);
let (update_msg_1, commitment_signed_1) = match events_0[0] { // (1)
Event::UpdateHTLCs { updates: msgs::CommitmentUpdate { ref update_fee, ref commitment_signed, .. }, .. } => {
(update_fee.as_ref().unwrap(), commitment_signed)
},
_ => panic!("Unexpected event"),
};
// Deliver first update_fee/commitment_signed pair, generating (1) and (2):
nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), update_msg_1).unwrap();
let (bs_revoke_msg, bs_commitment_signed) = nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), commitment_signed_1).unwrap();
check_added_monitors!(nodes[1], 1);
// nodes[0] is awaiting a revoke from nodes[1] before it will create a new commitment
// transaction:
nodes[0].node.update_fee(channel_id, initial_feerate + 40).unwrap();
assert!(nodes[0].node.get_and_clear_pending_events().is_empty());
// Create the (3) update_fee message that nodes[0] will generate before it does...
let mut update_msg_2 = msgs::UpdateFee {
channel_id: update_msg_1.channel_id.clone(),
feerate_per_kw: (initial_feerate + 30) as u32,
};
nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), &update_msg_2).unwrap();
update_msg_2.feerate_per_kw = (initial_feerate + 40) as u32;
// Deliver (3)
nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), &update_msg_2).unwrap();
// Deliver (1), generating (3) and (4)
let as_second_update = nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_revoke_msg).unwrap();
check_added_monitors!(nodes[0], 1);
assert!(as_second_update.as_ref().unwrap().update_add_htlcs.is_empty());
assert!(as_second_update.as_ref().unwrap().update_fulfill_htlcs.is_empty());
assert!(as_second_update.as_ref().unwrap().update_fail_htlcs.is_empty());
assert!(as_second_update.as_ref().unwrap().update_fail_malformed_htlcs.is_empty());
// Check that the update_fee newly generated matches what we delivered:
assert_eq!(as_second_update.as_ref().unwrap().update_fee.as_ref().unwrap().channel_id, update_msg_2.channel_id);
assert_eq!(as_second_update.as_ref().unwrap().update_fee.as_ref().unwrap().feerate_per_kw, update_msg_2.feerate_per_kw);
// Deliver (2) commitment_signed
let (as_revoke_msg, as_commitment_signed) = nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), bs_commitment_signed.as_ref().unwrap()).unwrap();
check_added_monitors!(nodes[0], 1);
assert!(as_commitment_signed.is_none());
assert!(nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_revoke_msg).unwrap().is_none());
check_added_monitors!(nodes[1], 1);
// Delever (4)
let (bs_second_revoke, bs_second_commitment) = nodes[1].node.handle_commitment_signed(&nodes[0].node.get_our_node_id(), &as_second_update.unwrap().commitment_signed).unwrap();
check_added_monitors!(nodes[1], 1);
assert!(nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &bs_second_revoke).unwrap().is_none());
check_added_monitors!(nodes[0], 1);
let (as_second_revoke, as_second_commitment) = nodes[0].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &bs_second_commitment.unwrap()).unwrap();
assert!(as_second_commitment.is_none());
check_added_monitors!(nodes[0], 1);
assert!(nodes[1].node.handle_revoke_and_ack(&nodes[0].node.get_our_node_id(), &as_second_revoke).unwrap().is_none());
check_added_monitors!(nodes[1], 1);
}
#[test]
fn test_update_fee_vanilla() {
let nodes = create_network(2);