mirror of
https://github.com/lightningnetwork/lnd.git
synced 2024-11-19 09:53:54 +01:00
123 lines
4.4 KiB
Go
123 lines
4.4 KiB
Go
package itest
|
|
|
|
import (
|
|
"time"
|
|
|
|
"github.com/lightningnetwork/lnd/chainreg"
|
|
"github.com/lightningnetwork/lnd/lnrpc"
|
|
"github.com/lightningnetwork/lnd/lntest"
|
|
"github.com/stretchr/testify/require"
|
|
)
|
|
|
|
// testWipeForwardingPackagesLocal tests that when a channel is closed, either
|
|
// through local force close, remote close, or coop close, all the forwarding
|
|
// packages of that particular channel are deleted. The test creates a
|
|
// topology as Alice -> Bob -> Carol, and sends payments from Alice to Carol
|
|
// through Bob. It then performs the test in two steps,
|
|
// - Bob force closes the channel Alice->Bob, and checks from both Bob's
|
|
// PoV(local force close) and Alice's Pov(remote close) that the forwarding
|
|
// packages are wiped.
|
|
// - Bob coop closes the channel Bob->Carol, and checks from both Bob PoVs
|
|
// that the forwarding packages are wiped.
|
|
func testWipeForwardingPackages(ht *lntest.HarnessTest) {
|
|
const (
|
|
chanAmt = 10e6
|
|
paymentAmt = 10e4
|
|
finalCTLVDelta = chainreg.DefaultBitcoinTimeLockDelta
|
|
numInvoices = 3
|
|
)
|
|
|
|
// Grab Alice and Bob from HarnessTest.
|
|
alice, bob := ht.Alice, ht.Bob
|
|
|
|
// Create a new node Carol, which will create invoices that require
|
|
// Alice to pay.
|
|
carol := ht.NewNode("Carol", nil)
|
|
|
|
// Connect Bob to Carol.
|
|
ht.ConnectNodes(bob, carol)
|
|
|
|
// Open a channel between Alice and Bob.
|
|
chanPointAB := ht.OpenChannel(
|
|
alice, bob, lntest.OpenChannelParams{Amt: chanAmt},
|
|
)
|
|
|
|
// Open a channel between Bob and Carol.
|
|
chanPointBC := ht.OpenChannel(
|
|
bob, carol, lntest.OpenChannelParams{Amt: chanAmt},
|
|
)
|
|
|
|
// Before we continue, make sure Alice has seen the channel between Bob
|
|
// and Carol.
|
|
ht.AssertTopologyChannelOpen(alice, chanPointBC)
|
|
|
|
// Alice sends several payments to Carol through Bob, which triggers
|
|
// Bob to create forwarding packages.
|
|
for i := 0; i < numInvoices; i++ {
|
|
// Add an invoice for Carol.
|
|
invoice := &lnrpc.Invoice{Memo: "testing", Value: paymentAmt}
|
|
resp := carol.RPC.AddInvoice(invoice)
|
|
|
|
// Alice sends a payment to Carol through Bob.
|
|
ht.CompletePaymentRequests(alice, []string{resp.PaymentRequest})
|
|
}
|
|
|
|
// TODO(yy): remove the sleep once the following bug is fixed.
|
|
// When the invoice is reported settled, the commitment dance is not
|
|
// yet finished, which can cause an error when closing the channel,
|
|
// saying there's active HTLCs. We need to investigate this issue and
|
|
// reverse the order to, first finish the commitment dance, then report
|
|
// the invoice as settled.
|
|
time.Sleep(2 * time.Second)
|
|
|
|
// Firstly, Bob force closes the channel.
|
|
ht.CloseChannelAssertPending(bob, chanPointAB, true)
|
|
|
|
// Now that the channel has been force closed, it should show up in
|
|
// bob's PendingChannels RPC under the waiting close section.
|
|
pendingAB := ht.AssertChannelWaitingClose(bob, chanPointAB).Channel
|
|
|
|
// Check that Bob has created forwarding packages. We don't care the
|
|
// exact number here as long as these packages are deleted when the
|
|
// channel is closed.
|
|
require.NotZero(ht, pendingAB.NumForwardingPackages)
|
|
|
|
// Secondly, Bob coop closes the channel.
|
|
ht.CloseChannelAssertPending(bob, chanPointBC, false)
|
|
|
|
// Now that the channel has been coop closed, it should show up in
|
|
// bob's PendingChannels RPC under the waiting close section.
|
|
pendingBC := ht.AssertChannelWaitingClose(bob, chanPointBC).Channel
|
|
|
|
// Check that Bob has created forwarding packages. We don't care the
|
|
// exact number here as long as these packages are deleted when the
|
|
// channel is closed.
|
|
require.NotZero(ht, pendingBC.NumForwardingPackages)
|
|
|
|
// Since it's a coop close, Carol should see the waiting close channel
|
|
// too.
|
|
pendingBC = ht.AssertChannelWaitingClose(carol, chanPointBC).Channel
|
|
require.NotZero(ht, pendingBC.NumForwardingPackages)
|
|
|
|
// Mine 1 block to get the two closing transactions confirmed.
|
|
ht.MineBlocksAndAssertNumTxes(1, 2)
|
|
|
|
// Now that the closing transaction is confirmed, the above waiting
|
|
// close channel should now become pending force closed channel.
|
|
pendingAB = ht.AssertChannelPendingForceClose(bob, chanPointAB).Channel
|
|
|
|
// Check the forwarding pacakges are deleted.
|
|
require.Zero(ht, pendingAB.NumForwardingPackages)
|
|
|
|
// For Alice, the forwarding packages should have been wiped too.
|
|
pending := ht.AssertChannelPendingForceClose(alice, chanPointAB)
|
|
pendingAB = pending.Channel
|
|
require.Zero(ht, pendingAB.NumForwardingPackages)
|
|
|
|
// Mine 1 block to get Alice's sweeping tx confirmed.
|
|
ht.MineBlocksAndAssertNumTxes(1, 1)
|
|
|
|
// Clean up the force closed channel.
|
|
ht.CleanupForceClose(bob)
|
|
}
|