This commit creates the file lnd_misc_test.go to hold all miscellaneous
tests in the file lnd_test.go. From now on, the lnd_test.go will only be
responsible for handling the "top" level functionalities such as
splitting test cases and run them. Newly created test cases should find
their places in the related test files, or create new one when needed.
This commit refactors the function assertNumConnections to use
wait.NoError. Prior to this commit, `make lint` will fail on this
function. While fixing it, it's noticed that wait.NoError suits the
case so it's refactored to use it.
From bbolt docs:
// Seek positions the cursor at the passed seek key. If the key does not exist,
// the cursor is moved to the next key after seek. Returns the new pair.
In this commit, we fix a regression introduced by a recent bug fix in
this area. Before this change, we'd inspect the error returned by
`processSendError`, and then fail the payment from the PoV of mission
control using the returned error.
A recent refactoring removed `processSendError` and combined the logic
with `tryApplyChannelUpdate` in order to introduce a new
`handleSendError` method that consolidates the logic within the
`shardHandler`. Along the way, the behavior of the prior check was
replicated in the form of a new internal `failPayment` closure. However,
the new function closure ends up returning a `channeldb.FailureReason`
instance, which is actually an `error`.
In the wild, when `SendToRoute` fails due to an error at the
destination, then this new logic caused the `handleSendErorr` method to
fail with an error, returning an unstructured error back to the caller,
instead of the usual payment failure details.
We fix this by no longer checking the `handleSendErorr` for an error as
normal. The `handleSendErorr` function as is will always return an error
of type `*channeldb.FailureReason`, therefore we don't need to treat it
as a normal error. Instead, we check for the type of error returned, and
update the control tower state accordingly.
With this commit, the test added in the prior commit now passes.
Fixes#5477.
In this commit, we modify the existing `TestSendToRouteStructuredError`
test to return an error that doesn't trigger the second chance logic.
Otherwise, we'll get a nil failure result from the mission control
interpretation, meaning we won't exercise the full code path. Instead,
we use a terminal error to ensure that the expected code path is hit.
As is, this test will fail as a recent refactoring causes us to return a
`channeldb.FailureReason` error, since the newly added `handleSendError`
code path in the `SendToRoute` method will return the raw error, rather
than the `shardError`, which is of the expected type.
In this commit, in order to allow the test added in the prior commit to
pass, we'll increment the mockHTLCAmt value by 1 to ensure we never
attempt to add a zero value HTLC.
Fixes#5468
As is, if the remote party proposes a min HTLC of 0 `mSat` to us, then
we won't ever be able to _send outgoing_ in the channel as the
`MayAddOutgoingHtlc` will attempt to add a zero-value HTLC, which isn't
allowed within the protocol.
The default channels created actually already use a min HTLC value of
zero within the tests, so this test case fails as is.
