itest: test anchor sweep with commitment deadline
This commit is contained in:
yyforyongyu
parent
26858da59d
commit
7c64e0445a
222
lntest/itest/lnd_channel_force_close.go
Normal file
222
lntest/itest/lnd_channel_force_close.go
Normal file
|
|
@ -0,0 +1,222 @@
|
|||
package itest
|
||||
|
||||
import (
|
||||
"context"
|
||||
"testing"
|
||||
|
||||
"github.com/btcsuite/btcd/blockchain"
|
||||
"github.com/btcsuite/btcd/integration/rpctest"
|
||||
"github.com/btcsuite/btcd/wire"
|
||||
"github.com/btcsuite/btcutil"
|
||||
"github.com/lightningnetwork/lnd/lnrpc"
|
||||
"github.com/lightningnetwork/lnd/lnrpc/routerrpc"
|
||||
"github.com/lightningnetwork/lnd/lntest"
|
||||
"github.com/lightningnetwork/lnd/lntest/wait"
|
||||
"github.com/lightningnetwork/lnd/lnwallet"
|
||||
"github.com/lightningnetwork/lnd/lnwallet/chainfee"
|
||||
"github.com/lightningnetwork/lnd/routing"
|
||||
"github.com/stretchr/testify/require"
|
||||
)
|
||||
|
||||
// TODO(yy): move channel force closed related tests into this file.
|
||||
|
||||
// testCommitmentTransactionDeadline tests that the anchor sweep transaction is
|
||||
// taking account of the deadline of the commitment transaction. It tests two
|
||||
// scenarios:
|
||||
// 1) when the CPFP is skipped, checks that the deadline is not used.
|
||||
// 2) when the CPFP is used, checks that the deadline is applied.
|
||||
// Note that whether the deadline is used or not is implicitly checked by its
|
||||
// corresponding fee rates.
|
||||
func testCommitmentTransactionDeadline(net *lntest.NetworkHarness,
|
||||
t *harnessTest) {
|
||||
|
||||
// Get the default max fee rate used in sweeping the commitment
|
||||
// transaction.
|
||||
defaultMax := lnwallet.DefaultAnchorsCommitMaxFeeRateSatPerVByte
|
||||
maxPerKw := chainfee.SatPerKVByte(defaultMax * 1000).FeePerKWeight()
|
||||
|
||||
const (
|
||||
// feeRateConfDefault(sat/kw) is used when no conf target is
|
||||
// set. This value will be returned by the fee estimator but
|
||||
// won't be used because our commitment fee rate is capped by
|
||||
// DefaultAnchorsCommitMaxFeeRateSatPerVByte.
|
||||
feeRateDefault = 20000
|
||||
|
||||
// finalCTLV is used when Alice sends payment to Bob.
|
||||
finalCTLV = 144
|
||||
|
||||
// deadline is used when Alice sweep the anchor. Notice there
|
||||
// is a block padding of 3 added, such that the value of
|
||||
// deadline is 147.
|
||||
deadline = uint32(finalCTLV + routing.BlockPadding)
|
||||
)
|
||||
|
||||
// feeRateSmall(sat/kw) is used when we want to skip the CPFP
|
||||
// on anchor transactions. When the fee rate is smaller than
|
||||
// the parent's (commitment transaction) fee rate, the CPFP
|
||||
// will be skipped. Atm, the parent tx's fee rate is roughly
|
||||
// 2500 sat/kw in this test.
|
||||
feeRateSmall := maxPerKw / 2
|
||||
|
||||
// feeRateLarge(sat/kw) is used when we want to use the anchor
|
||||
// transaction to CPFP our commitment transaction.
|
||||
feeRateLarge := maxPerKw * 2
|
||||
|
||||
ctxt, cancel := context.WithTimeout(
|
||||
context.Background(), defaultTimeout,
|
||||
)
|
||||
defer cancel()
|
||||
|
||||
// Before we start, set up the default fee rate and we will test the
|
||||
// actual fee rate against it to decide whether we are using the
|
||||
// deadline to perform fee estimation.
|
||||
net.SetFeeEstimate(feeRateDefault)
|
||||
|
||||
// setupNode creates a new node and sends 1 btc to the node.
|
||||
setupNode := func(name string) *lntest.HarnessNode {
|
||||
// Create the node.
|
||||
args := []string{"--hodl.exit-settle"}
|
||||
args = append(args, commitTypeAnchors.Args()...)
|
||||
node := net.NewNode(t.t, name, args)
|
||||
|
||||
// Send some coins to the node.
|
||||
net.SendCoins(ctxt, t.t, btcutil.SatoshiPerBitcoin, node)
|
||||
return node
|
||||
}
|
||||
|
||||
// calculateSweepFeeRate runs multiple steps to calculate the fee rate
|
||||
// used in sweeping the transactions.
|
||||
calculateSweepFeeRate := func(expectedSweepTxNum int) int64 {
|
||||
// Create two nodes, Alice and Bob.
|
||||
alice := setupNode("Alice")
|
||||
defer shutdownAndAssert(net, t, alice)
|
||||
|
||||
bob := setupNode("Bob")
|
||||
defer shutdownAndAssert(net, t, bob)
|
||||
|
||||
// Connect Alice to Bob.
|
||||
net.ConnectNodes(ctxt, t.t, alice, bob)
|
||||
|
||||
// Open a channel between Alice and Bob.
|
||||
chanPoint := openChannelAndAssert(
|
||||
ctxt, t, net, alice, bob,
|
||||
lntest.OpenChannelParams{
|
||||
Amt: 10e6,
|
||||
PushAmt: 5e6,
|
||||
},
|
||||
)
|
||||
|
||||
// Send a payment with a specified finalCTLVDelta, which will
|
||||
// be used as our deadline later on when Alice force closes the
|
||||
// channel.
|
||||
_, err := alice.RouterClient.SendPaymentV2(
|
||||
ctxt,
|
||||
&routerrpc.SendPaymentRequest{
|
||||
Dest: bob.PubKey[:],
|
||||
Amt: 10e4,
|
||||
PaymentHash: makeFakePayHash(t),
|
||||
FinalCltvDelta: finalCTLV,
|
||||
TimeoutSeconds: 60,
|
||||
FeeLimitMsat: noFeeLimitMsat,
|
||||
},
|
||||
)
|
||||
require.NoError(t.t, err, "unable to send alice htlc")
|
||||
|
||||
// Once the HTLC has cleared, all the nodes in our mini network
|
||||
// should show that the HTLC has been locked in.
|
||||
nodes := []*lntest.HarnessNode{alice, bob}
|
||||
err = wait.NoError(func() error {
|
||||
return assertNumActiveHtlcs(nodes, 1)
|
||||
}, defaultTimeout)
|
||||
require.NoError(t.t, err, "htlc mismatch")
|
||||
|
||||
// Alice force closes the channel.
|
||||
_, _, err = net.CloseChannel(ctxt, alice, chanPoint, true)
|
||||
require.NoError(t.t, err, "unable to force close channel")
|
||||
|
||||
// Now that the channel has been force closed, it should show
|
||||
// up in the PendingChannels RPC under the waiting close
|
||||
// section.
|
||||
pendingChansRequest := &lnrpc.PendingChannelsRequest{}
|
||||
pendingChanResp, err := alice.PendingChannels(
|
||||
ctxt, pendingChansRequest,
|
||||
)
|
||||
require.NoError(
|
||||
t.t, err, "unable to query for pending channels",
|
||||
)
|
||||
require.NoError(
|
||||
t.t, checkNumWaitingCloseChannels(pendingChanResp, 1),
|
||||
)
|
||||
|
||||
// We should see only one sweep transaction because the anchor
|
||||
// sweep is skipped.
|
||||
sweepTxns, err := getNTxsFromMempool(
|
||||
net.Miner.Client,
|
||||
expectedSweepTxNum, minerMempoolTimeout,
|
||||
)
|
||||
require.NoError(
|
||||
t.t, err, "failed to find commitment tx in mempool",
|
||||
)
|
||||
|
||||
// Mine a block to confirm these transactions such that they
|
||||
// don't remain in the mempool for any subsequent tests.
|
||||
_, err = net.Miner.Client.Generate(1)
|
||||
require.NoError(t.t, err, "unable to mine blocks")
|
||||
|
||||
// Calculate the fee rate used.
|
||||
feeRate := calculateTxnsFeeRate(t.t, net.Miner, sweepTxns)
|
||||
|
||||
return feeRate
|
||||
}
|
||||
|
||||
// Setup our fee estimation for the deadline. Because the fee rate is
|
||||
// smaller than the parent tx's fee rate, this value won't be used and
|
||||
// we should see only one sweep tx in the mempool.
|
||||
net.SetFeeEstimateWithConf(feeRateSmall, deadline)
|
||||
|
||||
// Calculate fee rate used.
|
||||
feeRate := calculateSweepFeeRate(1)
|
||||
|
||||
// We expect the default max fee rate is used. Allow some deviation
|
||||
// because weight estimates during tx generation are estimates.
|
||||
require.InEpsilonf(
|
||||
t.t, int64(maxPerKw), feeRate, 0.01,
|
||||
"expected fee rate:%d, got fee rate:%d", maxPerKw, feeRate,
|
||||
)
|
||||
|
||||
// Setup our fee estimation for the deadline. Because the fee rate is
|
||||
// greater than the parent tx's fee rate, this value will be used to
|
||||
// sweep the anchor transaction and we should see two sweep
|
||||
// transactions in the mempool.
|
||||
net.SetFeeEstimateWithConf(feeRateLarge, deadline)
|
||||
|
||||
// Calculate fee rate used.
|
||||
feeRate = calculateSweepFeeRate(2)
|
||||
|
||||
// We expect the anchor to be swept with the deadline, which has the
|
||||
// fee rate of feeRateLarge.
|
||||
require.InEpsilonf(
|
||||
t.t, int64(feeRateLarge), feeRate, 0.01,
|
||||
"expected fee rate:%d, got fee rate:%d", feeRateLarge, feeRate,
|
||||
)
|
||||
}
|
||||
|
||||
// calculateTxnsFeeRate takes a list of transactions and estimates the fee rate
|
||||
// used to sweep them.
|
||||
func calculateTxnsFeeRate(t *testing.T,
|
||||
miner *rpctest.Harness, txns []*wire.MsgTx) int64 {
|
||||
|
||||
var totalWeight, totalFee int64
|
||||
for _, tx := range txns {
|
||||
utx := btcutil.NewTx(tx)
|
||||
totalWeight += blockchain.GetTransactionWeight(utx)
|
||||
|
||||
fee, err := getTxFee(miner.Client, tx)
|
||||
require.NoError(t, err)
|
||||
|
||||
totalFee += int64(fee)
|
||||
}
|
||||
feeRate := totalFee * 1000 / totalWeight
|
||||
|
||||
return feeRate
|
||||
}
|
||||
|
|
@ -111,7 +111,6 @@ var allTestCases = []*testCase{
|
|||
name: "private channel update policy",
|
||||
test: testUpdateChannelPolicyForPrivateChannel,
|
||||
},
|
||||
|
||||
{
|
||||
name: "invoice routing hints",
|
||||
test: testInvoiceRoutingHints,
|
||||
|
|
@ -239,6 +238,10 @@ var allTestCases = []*testCase{
|
|||
name: "hold invoice force close",
|
||||
test: testHoldInvoiceForceClose,
|
||||
},
|
||||
{
|
||||
name: "commitment deadline",
|
||||
test: testCommitmentTransactionDeadline,
|
||||
},
|
||||
{
|
||||
name: "cpfp",
|
||||
test: testCPFP,
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user