This commit removes the old multi shards test for `SendToRoute` as the
method doesn't support sending MPP. The original test passed due to a
flawed mocking method, where the mockers bypassed the public interfaces
to maintain their internal state, which caused a non-exsiting situation
that a temp error wouldn't fail the payment. A new unit test is added to
demonstrate the actual case.
The routing package implements authentication+validation of channel
announcements, pruning of the channel graph, path finding within the network,
sending outgoing payments into the network and synchronizing new peers to our
channel graph state.
Installation and Updating
⛰ go get -u github.com/lightningnetwork/lnd/routing