Update our payment lifecycle test to run each test case with
a fresh router. This prevents test cases from interacting with
each other. Names are also added for easy debugging.
As is, we don't check that our SendPayment call in
TestRouterPaymentStateMachine completes. This makes it easier
to create malformed tests that just run through steps but leave
the SendPayment call hanging. This commit adds a check that we
have completed our payment to help catch tests like this. We
also remove an unused quit channel.
Our aggregate htlc test depends on our previous behavior
where recipients would allow channels with pending hold
invoice htlcs to force close. Now that we have an expiry
watcher to prevent these force closes, we can't rely on
this for tests because the recipient will cancel the htlcs
back before they expire.
This commit adds a test for a hold invoice which is accepted
off-chain, and held by the recipient until it expired and
the payer force-closes the channel. With this test we
demonstrate two bugs in our handling of hold invoice state
in the invoice registry when we expire on chain:
- Htlcs not updated: even when we've timed out, we don't
update the htlc state accordingly.
- Invoice can be settled: the invoice can be settled even
though it's expired on chain.
Reproduce the case where we allow settling of invoices that have
htlcs that have actually timed out on chain. This bug can rarely
occur if a hodl invoice goes to chain and is manually settled
after it has timed out. Funds are SAFU, but this could be a
headache because the invoice says it's settled when no funds
were claimed.
This commit updates our multi-hop force close test to use a hodl
invoice so that we can reproduce some bugs which will require
the preimage for the invoice that is timed out on chain.
The previous behavior would allow updates to be overwritten in some
scenarios. Upon restart, this would lead to a missing settle/fail in
the update logs.
In this commit, we update the existing zombie resurrection test to
ensure that if we prune an edge and another pubkey is marked as nil,
that we only accept a resurrection channel update from the node the we
originally pruned if the pruning decision was one sided.
In this commit we add a new flag that controls if lnd will do strict
zombie pruning or not. If true, then this will cause lnd to maintain a
tighter graph as it wants both edges to always be live. We enable this by
default for neutrino as without this, it's possible that a node never
sees both edges begin disabled, so those edges are never actually pruned
from the graph.
In this commit, we add strict zombie pruning as a config level param.
This allow us to add the option for those that want a tighter graph, and
not change the default composition of the channel graph for most users
over night.
In addition, we expand the test case slightly by testing that the self
node won't be pruned, but also that if there's a node with only a single
known stale edge, then both variants will prune that edge.
This commit relaxes DeleteInvoice failure cases by removing the
requirement that the invoice needs to be indexed by the payment address.
Since payment address index was introduced with an empty migration it
is possible that users have old invoices which were never added to
this index causing invoice garbage collection to get stuck.
