mirror of
https://github.com/lightningnetwork/lnd.git
synced 2025-03-10 09:14:18 +01:00
33 lines
1.3 KiB
Go
33 lines
1.3 KiB
Go
package itest
|
|
|
|
import (
|
|
"time"
|
|
|
|
"github.com/lightningnetwork/lnd/lntest"
|
|
)
|
|
|
|
// flakePreimageSettlement documents a flake found when testing the preimage
|
|
// extraction logic in a force close. The scenario is,
|
|
// - Alice and Bob have a channel.
|
|
// - Alice sends an HTLC to Bob, and Bob won't settle it.
|
|
// - Alice goes offline.
|
|
// - Bob force closes the channel and claims the HTLC using the preimage using
|
|
// a sweeping tx.
|
|
//
|
|
// TODO(yy): Expose blockbeat to the link layer so the preimage extraction
|
|
// happens in the same block where it's spent.
|
|
func flakePreimageSettlement(ht *lntest.HarnessTest) {
|
|
// Mine a block to trigger the sweep. This is needed because the
|
|
// preimage extraction logic from the link is not managed by the
|
|
// blockbeat, which means the preimage may be sent to the contest
|
|
// resolver after it's launched, which means Bob would miss the block to
|
|
// launch the resolver.
|
|
ht.MineEmptyBlocks(1)
|
|
|
|
// Sleep for 2 seconds, which is needed to make sure the mempool has the
|
|
// correct tx. The above mined block can cause an RBF, if the preimage
|
|
// extraction has already been finished before the block is mined. This
|
|
// means Bob would have created the sweeping tx - mining another block
|
|
// would cause the sweeper to RBF it.
|
|
time.Sleep(2 * time.Second)
|
|
}
|