lnd.xprv/lntest/itest/lnd_test.go

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2019-05-15 10:02:53 +03:00
package itest
import (
"bytes"
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"context"
"crypto/rand"
"flag"
"fmt"
"io/ioutil"
"os"
"strings"
"testing"
"time"
"github.com/btcsuite/btcd/chaincfg/chainhash"
"github.com/btcsuite/btcd/integration/rpctest"
"github.com/btcsuite/btcd/rpcclient"
"github.com/btcsuite/btcd/wire"
"github.com/btcsuite/btcutil"
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"github.com/btcsuite/btcwallet/wallet"
"github.com/davecgh/go-spew/spew"
"github.com/lightningnetwork/lnd/chainreg"
"github.com/lightningnetwork/lnd/funding"
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"github.com/lightningnetwork/lnd/lncfg"
"github.com/lightningnetwork/lnd/lnrpc"
"github.com/lightningnetwork/lnd/lnrpc/routerrpc"
"github.com/lightningnetwork/lnd/lnrpc/walletrpc"
"github.com/lightningnetwork/lnd/lntest"
"github.com/lightningnetwork/lnd/lntest/wait"
"github.com/lightningnetwork/lnd/lnwallet"
"github.com/lightningnetwork/lnd/lnwire"
"github.com/stretchr/testify/require"
)
const (
// defaultSplitTranches is the default number of tranches we split the
// test cases into.
defaultSplitTranches uint = 1
// defaultRunTranche is the default index of the test cases tranche that
// we run.
defaultRunTranche uint = 0
)
var (
// testCasesSplitParts is the number of tranches the test cases should
// be split into. By default this is set to 1, so no splitting happens.
// If this value is increased, then the -runtranche flag must be
// specified as well to indicate which part should be run in the current
// invocation.
testCasesSplitTranches = flag.Uint(
"splittranches", defaultSplitTranches, "split the test cases "+
"in this many tranches and run the tranche at "+
"0-based index specified by the -runtranche flag",
)
// testCasesRunTranche is the 0-based index of the split test cases
// tranche to run in the current invocation.
testCasesRunTranche = flag.Uint(
"runtranche", defaultRunTranche, "run the tranche of the "+
"split test cases with the given (0-based) index",
)
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// dbBackendFlag specifies the backend to use
dbBackendFlag = flag.String("dbbackend", "bbolt", "Database backend (bbolt, etcd)")
)
// getTestCaseSplitTranche returns the sub slice of the test cases that should
// be run as the current split tranche as well as the index and slice offset of
// the tranche.
func getTestCaseSplitTranche() ([]*testCase, uint, uint) {
numTranches := defaultSplitTranches
if testCasesSplitTranches != nil {
numTranches = *testCasesSplitTranches
}
runTranche := defaultRunTranche
if testCasesRunTranche != nil {
runTranche = *testCasesRunTranche
}
// There's a special flake-hunt mode where we run the same test multiple
// times in parallel. In that case the tranche index is equal to the
// thread ID, but we need to actually run all tests for the regex
// selection to work.
threadID := runTranche
if numTranches == 1 {
runTranche = 0
}
numCases := uint(len(allTestCases))
testsPerTranche := numCases / numTranches
trancheOffset := runTranche * testsPerTranche
trancheEnd := trancheOffset + testsPerTranche
if trancheEnd > numCases || runTranche == numTranches-1 {
trancheEnd = numCases
}
return allTestCases[trancheOffset:trancheEnd], threadID, trancheOffset
}
// testDisconnectingTargetPeer performs a test which disconnects Alice-peer from
// Bob-peer and then re-connects them again. We expect Alice to be able to
// disconnect at any point.
func testDisconnectingTargetPeer(net *lntest.NetworkHarness, t *harnessTest) {
ctxb := context.Background()
// We'll start both nodes with a high backoff so that they don't
// reconnect automatically during our test.
args := []string{
"--minbackoff=1m",
"--maxbackoff=1m",
}
alice := net.NewNode(t.t, "Alice", args)
defer shutdownAndAssert(net, t, alice)
bob := net.NewNode(t.t, "Bob", args)
defer shutdownAndAssert(net, t, bob)
// Start by connecting Alice and Bob with no channels.
ctxt, _ := context.WithTimeout(ctxb, defaultTimeout)
net.ConnectNodes(ctxt, t.t, alice, bob)
// Check existing connection.
assertNumConnections(t, alice, bob, 1)
// Give Alice some coins so she can fund a channel.
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
net.SendCoins(ctxt, t.t, btcutil.SatoshiPerBitcoin, alice)
chanAmt := funding.MaxBtcFundingAmount
pushAmt := btcutil.Amount(0)
// Create a new channel that requires 1 confs before it's considered
// open, then broadcast the funding transaction
const numConfs = 1
ctxt, _ = context.WithTimeout(ctxb, channelOpenTimeout)
pendingUpdate, err := net.OpenPendingChannel(
ctxt, alice, bob, chanAmt, pushAmt,
)
if err != nil {
t.Fatalf("unable to open channel: %v", err)
}
// At this point, the channel's funding transaction will have been
// broadcast, but not confirmed. Alice and Bob's nodes should reflect
// this when queried via RPC.
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
assertNumOpenChannelsPending(ctxt, t, alice, bob, 1)
// Disconnect Alice-peer from Bob-peer and get error causes by one
// pending channel with detach node is existing.
if err := net.DisconnectNodes(ctxt, alice, bob); err != nil {
t.Fatalf("Bob's peer was disconnected from Alice's"+
" while one pending channel is existing: err %v", err)
}
time.Sleep(time.Millisecond * 300)
// Assert that the connection was torn down.
assertNumConnections(t, alice, bob, 0)
fundingTxID, err := chainhash.NewHash(pendingUpdate.Txid)
if err != nil {
t.Fatalf("unable to convert funding txid into chainhash.Hash:"+
" %v", err)
}
// Mine a block, then wait for Alice's node to notify us that the
// channel has been opened. The funding transaction should be found
// within the newly mined block.
block := mineBlocks(t, net, numConfs, 1)[0]
assertTxInBlock(t, block, fundingTxID)
// At this point, the channel should be fully opened and there should be
// no pending channels remaining for either node.
time.Sleep(time.Millisecond * 300)
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
assertNumOpenChannelsPending(ctxt, t, alice, bob, 0)
// Reconnect the nodes so that the channel can become active.
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
net.ConnectNodes(ctxt, t.t, alice, bob)
// The channel should be listed in the peer information returned by both
// peers.
outPoint := wire.OutPoint{
Hash: *fundingTxID,
Index: pendingUpdate.OutputIndex,
}
// Check both nodes to ensure that the channel is ready for operation.
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
if err := net.AssertChannelExists(ctxt, alice, &outPoint); err != nil {
t.Fatalf("unable to assert channel existence: %v", err)
}
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
if err := net.AssertChannelExists(ctxt, bob, &outPoint); err != nil {
t.Fatalf("unable to assert channel existence: %v", err)
}
// Disconnect Alice-peer from Bob-peer and get error causes by one
// active channel with detach node is existing.
if err := net.DisconnectNodes(ctxt, alice, bob); err != nil {
t.Fatalf("Bob's peer was disconnected from Alice's"+
" while one active channel is existing: err %v", err)
}
// Check existing connection.
assertNumConnections(t, alice, bob, 0)
// Reconnect both nodes before force closing the channel.
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
net.ConnectNodes(ctxt, t.t, alice, bob)
// Finally, immediately close the channel. This function will also block
// until the channel is closed and will additionally assert the relevant
// channel closing post conditions.
chanPoint := &lnrpc.ChannelPoint{
FundingTxid: &lnrpc.ChannelPoint_FundingTxidBytes{
FundingTxidBytes: pendingUpdate.Txid,
},
OutputIndex: pendingUpdate.OutputIndex,
}
ctxt, _ = context.WithTimeout(ctxb, channelCloseTimeout)
closeChannelAndAssert(ctxt, t, net, alice, chanPoint, true)
// Disconnect Alice-peer from Bob-peer without getting error about
// existing channels.
if err := net.DisconnectNodes(ctxt, alice, bob); err != nil {
t.Fatalf("unable to disconnect Bob's peer from Alice's: err %v",
err)
}
// Check zero peer connections.
assertNumConnections(t, alice, bob, 0)
// Finally, re-connect both nodes.
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
net.ConnectNodes(ctxt, t.t, alice, bob)
// Check existing connection.
assertNumConnections(t, alice, net.Bob, 1)
// Cleanup by mining the force close and sweep transaction.
cleanupForceClose(t, net, alice, chanPoint)
}
// testSphinxReplayPersistence verifies that replayed onion packets are rejected
// by a remote peer after a restart. We use a combination of unsafe
// configuration arguments to force Carol to replay the same sphinx packet after
// reconnecting to Dave, and compare the returned failure message with what we
// expect for replayed onion packets.
func testSphinxReplayPersistence(net *lntest.NetworkHarness, t *harnessTest) {
ctxb := context.Background()
// Open a channel with 100k satoshis between Carol and Dave with Carol being
// the sole funder of the channel.
chanAmt := btcutil.Amount(100000)
// First, we'll create Dave, the receiver, and start him in hodl mode.
dave := net.NewNode(t.t, "Dave", []string{"--hodl.exit-settle"})
// We must remember to shutdown the nodes we created for the duration
// of the tests, only leaving the two seed nodes (Alice and Bob) within
// our test network.
defer shutdownAndAssert(net, t, dave)
// Next, we'll create Carol and establish a channel to from her to
// Dave. Carol is started in both unsafe-replay which will cause her to
// replay any pending Adds held in memory upon reconnection.
carol := net.NewNode(t.t, "Carol", []string{"--unsafe-replay"})
defer shutdownAndAssert(net, t, carol)
ctxt, _ := context.WithTimeout(ctxb, defaultTimeout)
net.ConnectNodes(ctxt, t.t, carol, dave)
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
net.SendCoins(ctxt, t.t, btcutil.SatoshiPerBitcoin, carol)
ctxt, _ = context.WithTimeout(ctxb, channelOpenTimeout)
chanPoint := openChannelAndAssert(
ctxt, t, net, carol, dave,
lntest.OpenChannelParams{
Amt: chanAmt,
},
)
// Next, we'll create Fred who is going to initiate the payment and
// establish a channel to from him to Carol. We can't perform this test
// by paying from Carol directly to Dave, because the '--unsafe-replay'
// setup doesn't apply to locally added htlcs. In that case, the
// mailbox, that is responsible for generating the replay, is bypassed.
fred := net.NewNode(t.t, "Fred", nil)
defer shutdownAndAssert(net, t, fred)
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
net.ConnectNodes(ctxt, t.t, fred, carol)
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
net.SendCoins(ctxt, t.t, btcutil.SatoshiPerBitcoin, fred)
ctxt, _ = context.WithTimeout(ctxb, channelOpenTimeout)
chanPointFC := openChannelAndAssert(
ctxt, t, net, fred, carol,
lntest.OpenChannelParams{
Amt: chanAmt,
},
)
// Now that the channel is open, create an invoice for Dave which
// expects a payment of 1000 satoshis from Carol paid via a particular
// preimage.
const paymentAmt = 1000
preimage := bytes.Repeat([]byte("A"), 32)
invoice := &lnrpc.Invoice{
Memo: "testing",
RPreimage: preimage,
Value: paymentAmt,
}
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
invoiceResp, err := dave.AddInvoice(ctxt, invoice)
if err != nil {
t.Fatalf("unable to add invoice: %v", err)
}
// Wait for all channels to be recognized and advertized.
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
err = carol.WaitForNetworkChannelOpen(ctxt, chanPoint)
if err != nil {
t.Fatalf("alice didn't advertise channel before "+
"timeout: %v", err)
}
err = dave.WaitForNetworkChannelOpen(ctxt, chanPoint)
if err != nil {
t.Fatalf("bob didn't advertise channel before "+
"timeout: %v", err)
}
err = carol.WaitForNetworkChannelOpen(ctxt, chanPointFC)
if err != nil {
t.Fatalf("alice didn't advertise channel before "+
"timeout: %v", err)
}
err = fred.WaitForNetworkChannelOpen(ctxt, chanPointFC)
if err != nil {
t.Fatalf("bob didn't advertise channel before "+
"timeout: %v", err)
}
// With the invoice for Dave added, send a payment from Fred paying
// to the above generated invoice.
ctx, cancel := context.WithCancel(ctxb)
defer cancel()
payStream, err := fred.RouterClient.SendPaymentV2(
ctx,
&routerrpc.SendPaymentRequest{
PaymentRequest: invoiceResp.PaymentRequest,
TimeoutSeconds: 60,
FeeLimitMsat: noFeeLimitMsat,
},
)
if err != nil {
t.Fatalf("unable to open payment stream: %v", err)
}
time.Sleep(200 * time.Millisecond)
// Dave's invoice should not be marked as settled.
payHash := &lnrpc.PaymentHash{
RHash: invoiceResp.RHash,
}
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
dbInvoice, err := dave.LookupInvoice(ctxt, payHash)
if err != nil {
t.Fatalf("unable to lookup invoice: %v", err)
}
if dbInvoice.Settled {
t.Fatalf("dave's invoice should not be marked as settled: %v",
spew.Sdump(dbInvoice))
}
// With the payment sent but hedl, all balance related stats should not
// have changed.
err = wait.InvariantNoError(
assertAmountSent(0, carol, dave), 3*time.Second,
)
if err != nil {
t.Fatalf(err.Error())
}
// With the first payment sent, restart dave to make sure he is
// persisting the information required to detect replayed sphinx
// packets.
if err := net.RestartNode(dave, nil); err != nil {
t.Fatalf("unable to restart dave: %v", err)
}
// Carol should retransmit the Add hedl in her mailbox on startup. Dave
// should not accept the replayed Add, and actually fail back the
// pending payment. Even though he still holds the original settle, if
// he does fail, it is almost certainly caused by the sphinx replay
// protection, as it is the only validation we do in hodl mode.
result, err := getPaymentResult(payStream)
if err != nil {
t.Fatalf("unable to receive payment response: %v", err)
}
// Assert that Fred receives the expected failure after Carol sent a
// duplicate packet that fails due to sphinx replay detection.
if result.Status == lnrpc.Payment_SUCCEEDED {
t.Fatalf("expected payment error")
}
assertLastHTLCError(t, fred, lnrpc.Failure_INVALID_ONION_KEY)
// Since the payment failed, the balance should still be left
// unaltered.
err = wait.InvariantNoError(
assertAmountSent(0, carol, dave), 3*time.Second,
)
if err != nil {
t.Fatalf(err.Error())
}
ctxt, _ = context.WithTimeout(ctxb, channelCloseTimeout)
closeChannelAndAssert(ctxt, t, net, carol, chanPoint, true)
// Cleanup by mining the force close and sweep transaction.
cleanupForceClose(t, net, carol, chanPoint)
}
// testListChannels checks that the response from ListChannels is correct. It
// tests the values in all ChannelConstraints are returned as expected. Once
// ListChannels becomes mature, a test against all fields in ListChannels should
// be performed.
func testListChannels(net *lntest.NetworkHarness, t *harnessTest) {
ctxb := context.Background()
const aliceRemoteMaxHtlcs = 50
const bobRemoteMaxHtlcs = 100
// Create two fresh nodes and open a channel between them.
alice := net.NewNode(t.t, "Alice", nil)
defer shutdownAndAssert(net, t, alice)
bob := net.NewNode(
t.t, "Bob", []string{
fmt.Sprintf(
"--default-remote-max-htlcs=%v",
bobRemoteMaxHtlcs,
),
},
)
defer shutdownAndAssert(net, t, bob)
// Connect Alice to Bob.
net.ConnectNodes(ctxb, t.t, alice, bob)
// Give Alice some coins so she can fund a channel.
ctxt, _ := context.WithTimeout(ctxb, defaultTimeout)
net.SendCoins(ctxt, t.t, btcutil.SatoshiPerBitcoin, alice)
// Open a channel with 100k satoshis between Alice and Bob with Alice
// being the sole funder of the channel. The minial HTLC amount is set to
// 4200 msats.
const customizedMinHtlc = 4200
chanAmt := btcutil.Amount(100000)
ctxt, _ = context.WithTimeout(ctxb, channelOpenTimeout)
chanPoint := openChannelAndAssert(
ctxt, t, net, alice, bob,
lntest.OpenChannelParams{
Amt: chanAmt,
MinHtlc: customizedMinHtlc,
RemoteMaxHtlcs: aliceRemoteMaxHtlcs,
},
)
// Wait for Alice and Bob to receive the channel edge from the
// funding manager.
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
err := alice.WaitForNetworkChannelOpen(ctxt, chanPoint)
if err != nil {
t.Fatalf("alice didn't see the alice->bob channel before "+
"timeout: %v", err)
}
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
err = bob.WaitForNetworkChannelOpen(ctxt, chanPoint)
if err != nil {
t.Fatalf("bob didn't see the bob->alice channel before "+
"timeout: %v", err)
}
// Alice should have one channel opened with Bob.
assertNodeNumChannels(t, alice, 1)
// Bob should have one channel opened with Alice.
assertNodeNumChannels(t, bob, 1)
// Get the ListChannel response from Alice.
listReq := &lnrpc.ListChannelsRequest{}
ctxb = context.Background()
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
resp, err := alice.ListChannels(ctxt, listReq)
if err != nil {
t.Fatalf("unable to query for %s's channel list: %v",
alice.Name(), err)
}
// Check the returned response is correct.
aliceChannel := resp.Channels[0]
// defaultConstraints is a ChannelConstraints with default values. It is
// used to test against Alice's local channel constraints.
defaultConstraints := &lnrpc.ChannelConstraints{
CsvDelay: 4,
ChanReserveSat: 1000,
DustLimitSat: uint64(lnwallet.DefaultDustLimit()),
MaxPendingAmtMsat: 99000000,
MinHtlcMsat: 1,
MaxAcceptedHtlcs: bobRemoteMaxHtlcs,
}
assertChannelConstraintsEqual(
t, defaultConstraints, aliceChannel.LocalConstraints,
)
// customizedConstraints is a ChannelConstraints with customized values.
// Ideally, all these values can be passed in when creating the channel.
// Currently, only the MinHtlcMsat is customized. It is used to check
// against Alice's remote channel constratins.
customizedConstraints := &lnrpc.ChannelConstraints{
CsvDelay: 4,
ChanReserveSat: 1000,
DustLimitSat: uint64(lnwallet.DefaultDustLimit()),
MaxPendingAmtMsat: 99000000,
MinHtlcMsat: customizedMinHtlc,
MaxAcceptedHtlcs: aliceRemoteMaxHtlcs,
}
assertChannelConstraintsEqual(
t, customizedConstraints, aliceChannel.RemoteConstraints,
)
// Get the ListChannel response for Bob.
listReq = &lnrpc.ListChannelsRequest{}
ctxb = context.Background()
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
resp, err = bob.ListChannels(ctxt, listReq)
if err != nil {
t.Fatalf("unable to query for %s's channel "+
"list: %v", bob.Name(), err)
}
bobChannel := resp.Channels[0]
if bobChannel.ChannelPoint != aliceChannel.ChannelPoint {
t.Fatalf("Bob's channel point mismatched, want: %s, got: %s",
chanPoint.String(), bobChannel.ChannelPoint,
)
}
// Check channel constraints match. Alice's local channel constraint should
// be equal to Bob's remote channel constraint, and her remote one should
// be equal to Bob's local one.
assertChannelConstraintsEqual(
t, aliceChannel.LocalConstraints, bobChannel.RemoteConstraints,
)
assertChannelConstraintsEqual(
t, aliceChannel.RemoteConstraints, bobChannel.LocalConstraints,
)
}
// testMaxPendingChannels checks that error is returned from remote peer if
// max pending channel number was exceeded and that '--maxpendingchannels' flag
// exists and works properly.
func testMaxPendingChannels(net *lntest.NetworkHarness, t *harnessTest) {
ctxb := context.Background()
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maxPendingChannels := lncfg.DefaultMaxPendingChannels + 1
amount := funding.MaxBtcFundingAmount
// Create a new node (Carol) with greater number of max pending
// channels.
args := []string{
fmt.Sprintf("--maxpendingchannels=%v", maxPendingChannels),
}
carol := net.NewNode(t.t, "Carol", args)
defer shutdownAndAssert(net, t, carol)
ctxt, _ := context.WithTimeout(ctxb, defaultTimeout)
net.ConnectNodes(ctxt, t.t, net.Alice, carol)
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
carolBalance := btcutil.Amount(maxPendingChannels) * amount
net.SendCoins(ctxt, t.t, carolBalance, carol)
// Send open channel requests without generating new blocks thereby
// increasing pool of pending channels. Then check that we can't open
// the channel if the number of pending channels exceed max value.
openStreams := make([]lnrpc.Lightning_OpenChannelClient, maxPendingChannels)
for i := 0; i < maxPendingChannels; i++ {
ctxt, _ = context.WithTimeout(ctxb, channelOpenTimeout)
stream := openChannelStream(
ctxt, t, net, net.Alice, carol,
lntest.OpenChannelParams{
Amt: amount,
},
)
openStreams[i] = stream
}
// Carol exhausted available amount of pending channels, next open
// channel request should cause ErrorGeneric to be sent back to Alice.
ctxt, _ = context.WithTimeout(ctxb, channelOpenTimeout)
_, err := net.OpenChannel(
ctxt, net.Alice, carol,
lntest.OpenChannelParams{
Amt: amount,
},
)
if err == nil {
t.Fatalf("error wasn't received")
} else if !strings.Contains(
err.Error(), lnwire.ErrMaxPendingChannels.Error(),
) {
t.Fatalf("not expected error was received: %v", err)
}
// For now our channels are in pending state, in order to not interfere
// with other tests we should clean up - complete opening of the
// channel and then close it.
// Mine 6 blocks, then wait for node's to notify us that the channel has
// been opened. The funding transactions should be found within the
// first newly mined block. 6 blocks make sure the funding transaction
// has enough confirmations to be announced publicly.
block := mineBlocks(t, net, 6, maxPendingChannels)[0]
chanPoints := make([]*lnrpc.ChannelPoint, maxPendingChannels)
for i, stream := range openStreams {
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
fundingChanPoint, err := net.WaitForChannelOpen(ctxt, stream)
if err != nil {
t.Fatalf("error while waiting for channel open: %v", err)
}
fundingTxID, err := lnrpc.GetChanPointFundingTxid(fundingChanPoint)
if err != nil {
t.Fatalf("unable to get txid: %v", err)
}
// Ensure that the funding transaction enters a block, and is
// properly advertised by Alice.
assertTxInBlock(t, block, fundingTxID)
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
err = net.Alice.WaitForNetworkChannelOpen(ctxt, fundingChanPoint)
if err != nil {
t.Fatalf("channel not seen on network before "+
"timeout: %v", err)
}
// The channel should be listed in the peer information
// returned by both peers.
chanPoint := wire.OutPoint{
Hash: *fundingTxID,
Index: fundingChanPoint.OutputIndex,
}
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
if err := net.AssertChannelExists(ctxt, net.Alice, &chanPoint); err != nil {
t.Fatalf("unable to assert channel existence: %v", err)
}
chanPoints[i] = fundingChanPoint
}
// Next, close the channel between Alice and Carol, asserting that the
// channel has been properly closed on-chain.
for _, chanPoint := range chanPoints {
ctxt, _ = context.WithTimeout(ctxb, channelCloseTimeout)
closeChannelAndAssert(ctxt, t, net, net.Alice, chanPoint, false)
}
}
// testGarbageCollectLinkNodes tests that we properly garbase collect link nodes
// from the database and the set of persistent connections within the server.
func testGarbageCollectLinkNodes(net *lntest.NetworkHarness, t *harnessTest) {
ctxb := context.Background()
const (
chanAmt = 1000000
)
// Open a channel between Alice and Bob which will later be
// cooperatively closed.
ctxt, _ := context.WithTimeout(ctxb, channelOpenTimeout)
coopChanPoint := openChannelAndAssert(
ctxt, t, net, net.Alice, net.Bob,
lntest.OpenChannelParams{
Amt: chanAmt,
},
)
// Create Carol's node and connect Alice to her.
carol := net.NewNode(t.t, "Carol", nil)
defer shutdownAndAssert(net, t, carol)
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
net.ConnectNodes(ctxt, t.t, net.Alice, carol)
// Open a channel between Alice and Carol which will later be force
// closed.
ctxt, _ = context.WithTimeout(ctxb, channelOpenTimeout)
forceCloseChanPoint := openChannelAndAssert(
ctxt, t, net, net.Alice, carol,
lntest.OpenChannelParams{
Amt: chanAmt,
},
)
// Now, create Dave's a node and also open a channel between Alice and
// him. This link will serve as the only persistent link throughout
// restarts in this test.
dave := net.NewNode(t.t, "Dave", nil)
defer shutdownAndAssert(net, t, dave)
net.ConnectNodes(ctxt, t.t, net.Alice, dave)
ctxt, _ = context.WithTimeout(ctxb, channelOpenTimeout)
persistentChanPoint := openChannelAndAssert(
ctxt, t, net, net.Alice, dave,
lntest.OpenChannelParams{
Amt: chanAmt,
},
)
// isConnected is a helper closure that checks if a peer is connected to
// Alice.
isConnected := func(pubKey string) bool {
req := &lnrpc.ListPeersRequest{}
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
resp, err := net.Alice.ListPeers(ctxt, req)
if err != nil {
t.Fatalf("unable to retrieve alice's peers: %v", err)
}
for _, peer := range resp.Peers {
if peer.PubKey == pubKey {
return true
}
}
return false
}
// Restart both Bob and Carol to ensure Alice is able to reconnect to
// them.
if err := net.RestartNode(net.Bob, nil); err != nil {
t.Fatalf("unable to restart bob's node: %v", err)
}
if err := net.RestartNode(carol, nil); err != nil {
t.Fatalf("unable to restart carol's node: %v", err)
}
require.Eventually(t.t, func() bool {
return isConnected(net.Bob.PubKeyStr)
}, defaultTimeout, 20*time.Millisecond)
require.Eventually(t.t, func() bool {
return isConnected(carol.PubKeyStr)
}, defaultTimeout, 20*time.Millisecond)
// We'll also restart Alice to ensure she can reconnect to her peers
// with open channels.
if err := net.RestartNode(net.Alice, nil); err != nil {
t.Fatalf("unable to restart alice's node: %v", err)
}
require.Eventually(t.t, func() bool {
return isConnected(net.Bob.PubKeyStr)
}, defaultTimeout, 20*time.Millisecond)
require.Eventually(t.t, func() bool {
return isConnected(carol.PubKeyStr)
}, defaultTimeout, 20*time.Millisecond)
require.Eventually(t.t, func() bool {
return isConnected(dave.PubKeyStr)
}, defaultTimeout, 20*time.Millisecond)
err := wait.Predicate(func() bool {
return isConnected(dave.PubKeyStr)
}, defaultTimeout)
// testReconnection is a helper closure that restarts the nodes at both
// ends of a channel to ensure they do not reconnect after restarting.
// When restarting Alice, we'll first need to ensure she has
// reestablished her connection with Dave, as they still have an open
// channel together.
testReconnection := func(node *lntest.HarnessNode) {
// Restart both nodes, to trigger the pruning logic.
if err := net.RestartNode(node, nil); err != nil {
t.Fatalf("unable to restart %v's node: %v",
node.Name(), err)
}
if err := net.RestartNode(net.Alice, nil); err != nil {
t.Fatalf("unable to restart alice's node: %v", err)
}
// Now restart both nodes and make sure they don't reconnect.
if err := net.RestartNode(node, nil); err != nil {
t.Fatalf("unable to restart %v's node: %v", node.Name(),
err)
}
err = wait.Invariant(func() bool {
return !isConnected(node.PubKeyStr)
}, 5*time.Second)
if err != nil {
t.Fatalf("alice reconnected to %v", node.Name())
}
if err := net.RestartNode(net.Alice, nil); err != nil {
t.Fatalf("unable to restart alice's node: %v", err)
}
err = wait.Predicate(func() bool {
return isConnected(dave.PubKeyStr)
}, defaultTimeout)
if err != nil {
t.Fatalf("alice didn't reconnect to Dave")
}
err = wait.Invariant(func() bool {
return !isConnected(node.PubKeyStr)
}, 5*time.Second)
if err != nil {
t.Fatalf("alice reconnected to %v", node.Name())
}
}
// Now, we'll close the channel between Alice and Bob and ensure there
// is no reconnection logic between the both once the channel is fully
// closed.
ctxt, _ = context.WithTimeout(ctxb, channelCloseTimeout)
closeChannelAndAssert(ctxt, t, net, net.Alice, coopChanPoint, false)
testReconnection(net.Bob)
// We'll do the same with Alice and Carol, but this time we'll force
// close the channel instead.
ctxt, _ = context.WithTimeout(ctxb, channelCloseTimeout)
closeChannelAndAssert(ctxt, t, net, net.Alice, forceCloseChanPoint, true)
// Cleanup by mining the force close and sweep transaction.
cleanupForceClose(t, net, net.Alice, forceCloseChanPoint)
// We'll need to mine some blocks in order to mark the channel fully
// closed.
_, err = net.Miner.Client.Generate(chainreg.DefaultBitcoinTimeLockDelta - defaultCSV)
if err != nil {
t.Fatalf("unable to generate blocks: %v", err)
}
// Before we test reconnection, we'll ensure that the channel has been
// fully cleaned up for both Carol and Alice.
var predErr error
pendingChansRequest := &lnrpc.PendingChannelsRequest{}
err = wait.Predicate(func() bool {
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
pendingChanResp, err := net.Alice.PendingChannels(
ctxt, pendingChansRequest,
)
if err != nil {
predErr = fmt.Errorf("unable to query for pending "+
"channels: %v", err)
return false
}
predErr = checkNumForceClosedChannels(pendingChanResp, 0)
if predErr != nil {
return false
}
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
pendingChanResp, err = carol.PendingChannels(
ctxt, pendingChansRequest,
)
if err != nil {
predErr = fmt.Errorf("unable to query for pending "+
"channels: %v", err)
return false
}
predErr = checkNumForceClosedChannels(pendingChanResp, 0)
2021-04-16 11:55:51 +03:00
return predErr == nil
}, defaultTimeout)
if err != nil {
t.Fatalf("channels not marked as fully resolved: %v", predErr)
}
testReconnection(carol)
// Finally, we'll ensure that Bob and Carol no longer show in Alice's
// channel graph.
describeGraphReq := &lnrpc.ChannelGraphRequest{
IncludeUnannounced: true,
}
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
channelGraph, err := net.Alice.DescribeGraph(ctxt, describeGraphReq)
if err != nil {
t.Fatalf("unable to query for alice's channel graph: %v", err)
}
for _, node := range channelGraph.Nodes {
if node.PubKey == net.Bob.PubKeyStr {
t.Fatalf("did not expect to find bob in the channel " +
"graph, but did")
}
if node.PubKey == carol.PubKeyStr {
t.Fatalf("did not expect to find carol in the channel " +
"graph, but did")
}
}
// Now that the test is done, we can also close the persistent link.
ctxt, _ = context.WithTimeout(ctxb, channelCloseTimeout)
closeChannelAndAssert(ctxt, t, net, net.Alice, persistentChanPoint, false)
}
// testDataLossProtection tests that if one of the nodes in a channel
// relationship lost state, they will detect this during channel sync, and the
// up-to-date party will force close the channel, giving the outdated party the
// opportunity to sweep its output.
func testDataLossProtection(net *lntest.NetworkHarness, t *harnessTest) {
ctxb := context.Background()
const (
chanAmt = funding.MaxBtcFundingAmount
paymentAmt = 10000
numInvoices = 6
)
// Carol will be the up-to-date party. We set --nolisten to ensure Dave
// won't be able to connect to her and trigger the channel data
// protection logic automatically. We also can't have Carol
// automatically re-connect too early, otherwise DLP would be initiated
// at the wrong moment.
carol := net.NewNode(
t.t, "Carol", []string{"--nolisten", "--minbackoff=1h"},
)
defer shutdownAndAssert(net, t, carol)
// Dave will be the party losing his state.
dave := net.NewNode(t.t, "Dave", nil)
defer shutdownAndAssert(net, t, dave)
// Before we make a channel, we'll load up Carol with some coins sent
// directly from the miner.
ctxt, _ := context.WithTimeout(ctxb, defaultTimeout)
net.SendCoins(ctxt, t.t, btcutil.SatoshiPerBitcoin, carol)
// timeTravel is a method that will make Carol open a channel to the
// passed node, settle a series of payments, then reset the node back
// to the state before the payments happened. When this method returns
// the node will be unaware of the new state updates. The returned
// function can be used to restart the node in this state.
timeTravel := func(node *lntest.HarnessNode) (func() error,
*lnrpc.ChannelPoint, int64, error) {
// We must let the node communicate with Carol before they are
// able to open channel, so we connect them.
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
net.EnsureConnected(ctxt, t.t, carol, node)
// We'll first open up a channel between them with a 0.5 BTC
// value.
ctxt, _ := context.WithTimeout(ctxb, channelOpenTimeout)
chanPoint := openChannelAndAssert(
ctxt, t, net, carol, node,
lntest.OpenChannelParams{
Amt: chanAmt,
},
)
// With the channel open, we'll create a few invoices for the
// node that Carol will pay to in order to advance the state of
// the channel.
// TODO(halseth): have dangling HTLCs on the commitment, able to
2021-04-16 11:55:51 +03:00
// retrieve funds?
payReqs, _, _, err := createPayReqs(
node, paymentAmt, numInvoices,
)
if err != nil {
t.Fatalf("unable to create pay reqs: %v", err)
}
// Wait for Carol to receive the channel edge from the funding
// manager.
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
err = carol.WaitForNetworkChannelOpen(ctxt, chanPoint)
if err != nil {
t.Fatalf("carol didn't see the carol->%s channel "+
"before timeout: %v", node.Name(), err)
}
// Send payments from Carol using 3 of the payment hashes
// generated above.
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
err = completePaymentRequests(
ctxt, carol, carol.RouterClient,
payReqs[:numInvoices/2], true,
)
if err != nil {
t.Fatalf("unable to send payments: %v", err)
}
// Next query for the node's channel state, as we sent 3
// payments of 10k satoshis each, it should now see his balance
// as being 30k satoshis.
var nodeChan *lnrpc.Channel
var predErr error
err = wait.Predicate(func() bool {
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
bChan, err := getChanInfo(ctxt, node)
if err != nil {
t.Fatalf("unable to get channel info: %v", err)
}
if bChan.LocalBalance != 30000 {
predErr = fmt.Errorf("balance is incorrect, "+
"got %v, expected %v",
bChan.LocalBalance, 30000)
return false
}
nodeChan = bChan
return true
}, defaultTimeout)
if err != nil {
t.Fatalf("%v", predErr)
}
// Grab the current commitment height (update number), we'll
// later revert him to this state after additional updates to
// revoke this state.
stateNumPreCopy := nodeChan.NumUpdates
// With the temporary file created, copy the current state into
// the temporary file we created above. Later after more
// updates, we'll restore this state.
2021-06-16 08:57:07 +03:00
if err := net.BackupDb(node); err != nil {
t.Fatalf("unable to copy database files: %v", err)
}
// Finally, send more payments from , using the remaining
// payment hashes.
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
err = completePaymentRequests(
ctxt, carol, carol.RouterClient,
payReqs[numInvoices/2:], true,
)
if err != nil {
t.Fatalf("unable to send payments: %v", err)
}
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
nodeChan, err = getChanInfo(ctxt, node)
if err != nil {
t.Fatalf("unable to get dave chan info: %v", err)
}
// Now we shutdown the node, copying over the its temporary
// database state which has the *prior* channel state over his
// current most up to date state. With this, we essentially
// force the node to travel back in time within the channel's
// history.
if err = net.RestartNode(node, func() error {
2021-06-16 08:57:07 +03:00
return net.RestoreDb(node)
}); err != nil {
t.Fatalf("unable to restart node: %v", err)
}
// Make sure the channel is still there from the PoV of the
// node.
assertNodeNumChannels(t, node, 1)
// Now query for the channel state, it should show that it's at
// a state number in the past, not the *latest* state.
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
nodeChan, err = getChanInfo(ctxt, node)
if err != nil {
t.Fatalf("unable to get dave chan info: %v", err)
}
if nodeChan.NumUpdates != stateNumPreCopy {
t.Fatalf("db copy failed: %v", nodeChan.NumUpdates)
}
balReq := &lnrpc.WalletBalanceRequest{}
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
balResp, err := node.WalletBalance(ctxt, balReq)
if err != nil {
t.Fatalf("unable to get dave's balance: %v", err)
}
restart, err := net.SuspendNode(node)
if err != nil {
t.Fatalf("unable to suspend node: %v", err)
}
return restart, chanPoint, balResp.ConfirmedBalance, nil
}
// Reset Dave to a state where he has an outdated channel state.
restartDave, _, daveStartingBalance, err := timeTravel(dave)
if err != nil {
t.Fatalf("unable to time travel dave: %v", err)
}
// We make a note of the nodes' current on-chain balances, to make sure
// they are able to retrieve the channel funds eventually,
balReq := &lnrpc.WalletBalanceRequest{}
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
carolBalResp, err := carol.WalletBalance(ctxt, balReq)
if err != nil {
t.Fatalf("unable to get carol's balance: %v", err)
}
carolStartingBalance := carolBalResp.ConfirmedBalance
// Restart Dave to trigger a channel resync.
if err := restartDave(); err != nil {
t.Fatalf("unable to restart dave: %v", err)
}
// Assert that once Dave comes up, they reconnect, Carol force closes
// on chain, and both of them properly carry out the DLP protocol.
assertDLPExecuted(
net, t, carol, carolStartingBalance, dave, daveStartingBalance,
false,
)
// As a second part of this test, we will test the scenario where a
// channel is closed while Dave is offline, loses his state and comes
// back online. In this case the node should attempt to resync the
// channel, and the peer should resend a channel sync message for the
// closed channel, such that Dave can retrieve his funds.
//
// We start by letting Dave time travel back to an outdated state.
restartDave, chanPoint2, daveStartingBalance, err := timeTravel(dave)
if err != nil {
t.Fatalf("unable to time travel eve: %v", err)
}
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
carolBalResp, err = carol.WalletBalance(ctxt, balReq)
if err != nil {
t.Fatalf("unable to get carol's balance: %v", err)
}
carolStartingBalance = carolBalResp.ConfirmedBalance
// Now let Carol force close the channel while Dave is offline.
ctxt, _ = context.WithTimeout(ctxb, channelCloseTimeout)
closeChannelAndAssert(ctxt, t, net, carol, chanPoint2, true)
// Wait for the channel to be marked pending force close.
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
err = waitForChannelPendingForceClose(ctxt, carol, chanPoint2)
if err != nil {
t.Fatalf("channel not pending force close: %v", err)
}
// Mine enough blocks for Carol to sweep her funds.
mineBlocks(t, net, defaultCSV-1, 0)
carolSweep, err := waitForTxInMempool(net.Miner.Client, minerMempoolTimeout)
if err != nil {
t.Fatalf("unable to find Carol's sweep tx in mempool: %v", err)
}
block := mineBlocks(t, net, 1, 1)[0]
assertTxInBlock(t, block, carolSweep)
// Now the channel should be fully closed also from Carol's POV.
assertNumPendingChannels(t, carol, 0, 0)
// Make sure Carol got her balance back.
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
carolBalResp, err = carol.WalletBalance(ctxt, balReq)
if err != nil {
t.Fatalf("unable to get carol's balance: %v", err)
}
carolBalance := carolBalResp.ConfirmedBalance
if carolBalance <= carolStartingBalance {
t.Fatalf("expected carol to have balance above %d, "+
"instead had %v", carolStartingBalance,
carolBalance)
}
assertNodeNumChannels(t, carol, 0)
// When Dave comes online, he will reconnect to Carol, try to resync
// the channel, but it will already be closed. Carol should resend the
// information Dave needs to sweep his funds.
if err := restartDave(); err != nil {
2019-05-05 01:35:37 +03:00
t.Fatalf("unable to restart Eve: %v", err)
}
// Dave should sweep his funds.
_, err = waitForTxInMempool(net.Miner.Client, minerMempoolTimeout)
if err != nil {
t.Fatalf("unable to find Dave's sweep tx in mempool: %v", err)
}
// Mine a block to confirm the sweep, and make sure Dave got his
// balance back.
mineBlocks(t, net, 1, 1)
assertNodeNumChannels(t, dave, 0)
err = wait.NoError(func() error {
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
daveBalResp, err := dave.WalletBalance(ctxt, balReq)
if err != nil {
return fmt.Errorf("unable to get dave's balance: %v",
err)
}
daveBalance := daveBalResp.ConfirmedBalance
if daveBalance <= daveStartingBalance {
return fmt.Errorf("expected dave to have balance "+
"above %d, intead had %v", daveStartingBalance,
daveBalance)
}
return nil
}, defaultTimeout)
if err != nil {
t.Fatalf("%v", err)
}
}
// testRejectHTLC tests that a node can be created with the flag --rejecthtlc.
// This means that the node will reject all forwarded HTLCs but can still
// accept direct HTLCs as well as send HTLCs.
func testRejectHTLC(net *lntest.NetworkHarness, t *harnessTest) {
// RejectHTLC
// Alice ------> Carol ------> Bob
//
const chanAmt = btcutil.Amount(1000000)
ctxb := context.Background()
// Create Carol with reject htlc flag.
carol := net.NewNode(t.t, "Carol", []string{"--rejecthtlc"})
defer shutdownAndAssert(net, t, carol)
// Connect Alice to Carol.
net.ConnectNodes(ctxb, t.t, net.Alice, carol)
// Connect Carol to Bob.
net.ConnectNodes(ctxb, t.t, carol, net.Bob)
// Send coins to Carol.
net.SendCoins(ctxb, t.t, btcutil.SatoshiPerBitcoin, carol)
// Send coins to Alice.
net.SendCoins(ctxb, t.t, btcutil.SatoshiPerBitcent, net.Alice)
// Open a channel between Alice and Carol.
ctxt, _ := context.WithTimeout(ctxb, channelOpenTimeout)
chanPointAlice := openChannelAndAssert(
ctxt, t, net, net.Alice, carol,
lntest.OpenChannelParams{
Amt: chanAmt,
},
)
// Open a channel between Carol and Bob.
ctxt, _ = context.WithTimeout(ctxb, channelOpenTimeout)
chanPointCarol := openChannelAndAssert(
ctxt, t, net, carol, net.Bob,
lntest.OpenChannelParams{
Amt: chanAmt,
},
)
// Channel should be ready for payments.
const payAmt = 100
// Helper closure to generate a random pre image.
genPreImage := func() []byte {
preimage := make([]byte, 32)
_, err := rand.Read(preimage)
if err != nil {
t.Fatalf("unable to generate preimage: %v", err)
}
return preimage
}
// Create an invoice from Carol of 100 satoshis.
// We expect Alice to be able to pay this invoice.
preimage := genPreImage()
carolInvoice := &lnrpc.Invoice{
Memo: "testing - alice should pay carol",
RPreimage: preimage,
Value: payAmt,
}
// Carol adds the invoice to her database.
resp, err := carol.AddInvoice(ctxb, carolInvoice)
if err != nil {
t.Fatalf("unable to add invoice: %v", err)
}
// Alice pays Carols invoice.
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
err = completePaymentRequests(
ctxt, net.Alice, net.Alice.RouterClient,
[]string{resp.PaymentRequest}, true,
)
if err != nil {
t.Fatalf("unable to send payments from alice to carol: %v", err)
}
// Create an invoice from Bob of 100 satoshis.
// We expect Carol to be able to pay this invoice.
preimage = genPreImage()
bobInvoice := &lnrpc.Invoice{
Memo: "testing - carol should pay bob",
RPreimage: preimage,
Value: payAmt,
}
// Bob adds the invoice to his database.
resp, err = net.Bob.AddInvoice(ctxb, bobInvoice)
if err != nil {
t.Fatalf("unable to add invoice: %v", err)
}
// Carol pays Bobs invoice.
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
err = completePaymentRequests(
ctxt, carol, carol.RouterClient,
[]string{resp.PaymentRequest}, true,
)
if err != nil {
t.Fatalf("unable to send payments from carol to bob: %v", err)
}
// Create an invoice from Bob of 100 satoshis.
// Alice attempts to pay Bob but this should fail, since we are
// using Carol as a hop and her node will reject onward HTLCs.
preimage = genPreImage()
bobInvoice = &lnrpc.Invoice{
Memo: "testing - alice tries to pay bob",
RPreimage: preimage,
Value: payAmt,
}
// Bob adds the invoice to his database.
resp, err = net.Bob.AddInvoice(ctxb, bobInvoice)
if err != nil {
t.Fatalf("unable to add invoice: %v", err)
}
// Alice attempts to pay Bobs invoice. This payment should be rejected since
// we are using Carol as an intermediary hop, Carol is running lnd with
// --rejecthtlc.
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
err = completePaymentRequests(
ctxt, net.Alice, net.Alice.RouterClient,
[]string{resp.PaymentRequest}, true,
)
if err == nil {
t.Fatalf(
"should have been rejected, carol will not accept forwarded htlcs",
)
}
assertLastHTLCError(t, net.Alice, lnrpc.Failure_CHANNEL_DISABLED)
// Close all channels.
ctxt, _ = context.WithTimeout(ctxb, channelCloseTimeout)
closeChannelAndAssert(ctxt, t, net, net.Alice, chanPointAlice, false)
ctxt, _ = context.WithTimeout(ctxb, channelCloseTimeout)
closeChannelAndAssert(ctxt, t, net, carol, chanPointCarol, false)
}
func testNodeSignVerify(net *lntest.NetworkHarness, t *harnessTest) {
ctxb := context.Background()
chanAmt := funding.MaxBtcFundingAmount
pushAmt := btcutil.Amount(100000)
// Create a channel between alice and bob.
ctxt, _ := context.WithTimeout(ctxb, channelOpenTimeout)
aliceBobCh := openChannelAndAssert(
ctxt, t, net, net.Alice, net.Bob,
lntest.OpenChannelParams{
Amt: chanAmt,
PushAmt: pushAmt,
},
)
aliceMsg := []byte("alice msg")
// alice signs "alice msg" and sends her signature to bob.
sigReq := &lnrpc.SignMessageRequest{Msg: aliceMsg}
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
sigResp, err := net.Alice.SignMessage(ctxt, sigReq)
if err != nil {
t.Fatalf("SignMessage rpc call failed: %v", err)
}
aliceSig := sigResp.Signature
// bob verifying alice's signature should succeed since alice and bob are
// connected.
verifyReq := &lnrpc.VerifyMessageRequest{Msg: aliceMsg, Signature: aliceSig}
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
verifyResp, err := net.Bob.VerifyMessage(ctxt, verifyReq)
if err != nil {
t.Fatalf("VerifyMessage failed: %v", err)
}
if !verifyResp.Valid {
t.Fatalf("alice's signature didn't validate")
}
if verifyResp.Pubkey != net.Alice.PubKeyStr {
t.Fatalf("alice's signature doesn't contain alice's pubkey.")
}
// carol is a new node that is unconnected to alice or bob.
carol := net.NewNode(t.t, "Carol", nil)
defer shutdownAndAssert(net, t, carol)
carolMsg := []byte("carol msg")
// carol signs "carol msg" and sends her signature to bob.
sigReq = &lnrpc.SignMessageRequest{Msg: carolMsg}
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
sigResp, err = carol.SignMessage(ctxt, sigReq)
if err != nil {
t.Fatalf("SignMessage rpc call failed: %v", err)
}
carolSig := sigResp.Signature
// bob verifying carol's signature should fail since they are not connected.
verifyReq = &lnrpc.VerifyMessageRequest{Msg: carolMsg, Signature: carolSig}
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
verifyResp, err = net.Bob.VerifyMessage(ctxt, verifyReq)
if err != nil {
t.Fatalf("VerifyMessage failed: %v", err)
}
if verifyResp.Valid {
t.Fatalf("carol's signature should not be valid")
}
if verifyResp.Pubkey != carol.PubKeyStr {
t.Fatalf("carol's signature doesn't contain her pubkey")
}
// Close the channel between alice and bob.
ctxt, _ = context.WithTimeout(ctxb, channelCloseTimeout)
closeChannelAndAssert(ctxt, t, net, net.Alice, aliceBobCh, false)
}
// testSendUpdateDisableChannel ensures that a channel update with the disable
// flag set is sent once a channel has been either unilaterally or cooperatively
// closed.
func testSendUpdateDisableChannel(net *lntest.NetworkHarness, t *harnessTest) {
ctxb := context.Background()
const (
chanAmt = 100000
)
// Open a channel between Alice and Bob and Alice and Carol. These will
// be closed later on in order to trigger channel update messages
// marking the channels as disabled.
ctxt, _ := context.WithTimeout(ctxb, channelOpenTimeout)
chanPointAliceBob := openChannelAndAssert(
ctxt, t, net, net.Alice, net.Bob,
lntest.OpenChannelParams{
Amt: chanAmt,
},
)
carol := net.NewNode(
t.t, "Carol", []string{
"--minbackoff=10s",
"--chan-enable-timeout=1.5s",
"--chan-disable-timeout=3s",
"--chan-status-sample-interval=.5s",
})
defer shutdownAndAssert(net, t, carol)
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
net.ConnectNodes(ctxt, t.t, net.Alice, carol)
ctxt, _ = context.WithTimeout(ctxb, channelOpenTimeout)
chanPointAliceCarol := openChannelAndAssert(
ctxt, t, net, net.Alice, carol,
lntest.OpenChannelParams{
Amt: chanAmt,
},
)
// We create a new node Eve that has an inactive channel timeout of
// just 2 seconds (down from the default 20m). It will be used to test
// channel updates for channels going inactive.
eve := net.NewNode(
t.t, "Eve", []string{
"--minbackoff=10s",
"--chan-enable-timeout=1.5s",
"--chan-disable-timeout=3s",
"--chan-status-sample-interval=.5s",
})
defer shutdownAndAssert(net, t, eve)
// Give Eve some coins.
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
net.SendCoins(ctxt, t.t, btcutil.SatoshiPerBitcoin, eve)
// Connect Eve to Carol and Bob, and open a channel to carol.
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
net.ConnectNodes(ctxt, t.t, eve, carol)
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
net.ConnectNodes(ctxt, t.t, eve, net.Bob)
ctxt, _ = context.WithTimeout(ctxb, channelOpenTimeout)
chanPointEveCarol := openChannelAndAssert(
ctxt, t, net, eve, carol,
lntest.OpenChannelParams{
Amt: chanAmt,
},
)
// Launch a node for Dave which will connect to Bob in order to receive
// graph updates from. This will ensure that the channel updates are
// propagated throughout the network.
dave := net.NewNode(t.t, "Dave", nil)
defer shutdownAndAssert(net, t, dave)
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
net.ConnectNodes(ctxt, t.t, net.Bob, dave)
2021-04-16 11:55:51 +03:00
daveSub := subscribeGraphNotifications(ctxb, t, dave)
defer close(daveSub.quit)
// We should expect to see a channel update with the default routing
// policy, except that it should indicate the channel is disabled.
expectedPolicy := &lnrpc.RoutingPolicy{
FeeBaseMsat: int64(chainreg.DefaultBitcoinBaseFeeMSat),
FeeRateMilliMsat: int64(chainreg.DefaultBitcoinFeeRate),
TimeLockDelta: chainreg.DefaultBitcoinTimeLockDelta,
MinHtlc: 1000, // default value
MaxHtlcMsat: calculateMaxHtlc(chanAmt),
Disabled: true,
}
// Let Carol go offline. Since Eve has an inactive timeout of 2s, we
// expect her to send an update disabling the channel.
restartCarol, err := net.SuspendNode(carol)
if err != nil {
t.Fatalf("unable to suspend carol: %v", err)
}
waitForChannelUpdate(
t, daveSub,
[]expectedChanUpdate{
{eve.PubKeyStr, expectedPolicy, chanPointEveCarol},
},
)
// We restart Carol. Since the channel now becomes active again, Eve
// should send a ChannelUpdate setting the channel no longer disabled.
if err := restartCarol(); err != nil {
t.Fatalf("unable to restart carol: %v", err)
}
expectedPolicy.Disabled = false
waitForChannelUpdate(
t, daveSub,
[]expectedChanUpdate{
{eve.PubKeyStr, expectedPolicy, chanPointEveCarol},
},
)
// Now we'll test a long disconnection. Disconnect Carol and Eve and
// ensure they both detect each other as disabled. Their min backoffs
// are high enough to not interfere with disabling logic.
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
if err := net.DisconnectNodes(ctxt, carol, eve); err != nil {
t.Fatalf("unable to disconnect Carol from Eve: %v", err)
}
// Wait for a disable from both Carol and Eve to come through.
expectedPolicy.Disabled = true
waitForChannelUpdate(
t, daveSub,
[]expectedChanUpdate{
{eve.PubKeyStr, expectedPolicy, chanPointEveCarol},
{carol.PubKeyStr, expectedPolicy, chanPointEveCarol},
},
)
// Reconnect Carol and Eve, this should cause them to reenable the
// channel from both ends after a short delay.
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
net.EnsureConnected(ctxt, t.t, carol, eve)
expectedPolicy.Disabled = false
waitForChannelUpdate(
t, daveSub,
[]expectedChanUpdate{
{eve.PubKeyStr, expectedPolicy, chanPointEveCarol},
{carol.PubKeyStr, expectedPolicy, chanPointEveCarol},
},
)
// Now we'll test a short disconnection. Disconnect Carol and Eve, then
// reconnect them after one second so that their scheduled disables are
// aborted. One second is twice the status sample interval, so this
// should allow for the disconnect to be detected, but still leave time
// to cancel the announcement before the 3 second inactive timeout is
// hit.
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
if err := net.DisconnectNodes(ctxt, carol, eve); err != nil {
t.Fatalf("unable to disconnect Carol from Eve: %v", err)
}
time.Sleep(time.Second)
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
net.EnsureConnected(ctxt, t.t, eve, carol)
// Since the disable should have been canceled by both Carol and Eve, we
// expect no channel updates to appear on the network.
assertNoChannelUpdates(t, daveSub, 4*time.Second)
// Close Alice's channels with Bob and Carol cooperatively and
// unilaterally respectively.
ctxt, _ = context.WithTimeout(ctxb, channelCloseTimeout)
_, _, err = net.CloseChannel(ctxt, net.Alice, chanPointAliceBob, false)
if err != nil {
t.Fatalf("unable to close channel: %v", err)
}
ctxt, _ = context.WithTimeout(ctxb, channelCloseTimeout)
_, _, err = net.CloseChannel(ctxt, net.Alice, chanPointAliceCarol, true)
if err != nil {
t.Fatalf("unable to close channel: %v", err)
}
// Now that the channel close processes have been started, we should
// receive an update marking each as disabled.
expectedPolicy.Disabled = true
waitForChannelUpdate(
t, daveSub,
[]expectedChanUpdate{
{net.Alice.PubKeyStr, expectedPolicy, chanPointAliceBob},
{net.Alice.PubKeyStr, expectedPolicy, chanPointAliceCarol},
},
)
// Finally, close the channels by mining the closing transactions.
mineBlocks(t, net, 1, 2)
// Also do this check for Eve's channel with Carol.
ctxt, _ = context.WithTimeout(ctxb, channelCloseTimeout)
_, _, err = net.CloseChannel(ctxt, eve, chanPointEveCarol, false)
if err != nil {
t.Fatalf("unable to close channel: %v", err)
}
waitForChannelUpdate(
t, daveSub,
[]expectedChanUpdate{
{eve.PubKeyStr, expectedPolicy, chanPointEveCarol},
},
)
mineBlocks(t, net, 1, 1)
// And finally, clean up the force closed channel by mining the
// sweeping transaction.
cleanupForceClose(t, net, net.Alice, chanPointAliceCarol)
}
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// testAbandonChannel abandones a channel and asserts that it is no
// longer open and not in one of the pending closure states. It also
// verifies that the abandoned channel is reported as closed with close
// type 'abandoned'.
func testAbandonChannel(net *lntest.NetworkHarness, t *harnessTest) {
ctxb := context.Background()
// First establish a channel between Alice and Bob.
channelParam := lntest.OpenChannelParams{
Amt: funding.MaxBtcFundingAmount,
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PushAmt: btcutil.Amount(100000),
}
ctxt, _ := context.WithTimeout(ctxb, channelOpenTimeout)
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chanPoint := openChannelAndAssert(
ctxt, t, net, net.Alice, net.Bob, channelParam,
)
txid, err := lnrpc.GetChanPointFundingTxid(chanPoint)
if err != nil {
t.Fatalf("unable to get txid: %v", err)
}
chanPointStr := fmt.Sprintf("%v:%v", txid, chanPoint.OutputIndex)
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// Wait for channel to be confirmed open.
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
err = net.Alice.WaitForNetworkChannelOpen(ctxt, chanPoint)
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if err != nil {
t.Fatalf("alice didn't report channel: %v", err)
}
err = net.Bob.WaitForNetworkChannelOpen(ctxt, chanPoint)
if err != nil {
t.Fatalf("bob didn't report channel: %v", err)
}
// Now that the channel is open, we'll obtain its channel ID real quick
// so we can use it to query the graph below.
listReq := &lnrpc.ListChannelsRequest{}
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
aliceChannelList, err := net.Alice.ListChannels(ctxt, listReq)
if err != nil {
t.Fatalf("unable to fetch alice's channels: %v", err)
}
var chanID uint64
for _, channel := range aliceChannelList.Channels {
if channel.ChannelPoint == chanPointStr {
chanID = channel.ChanId
}
}
if chanID == 0 {
t.Fatalf("unable to find channel")
}
// To make sure the channel is removed from the backup file as well when
// being abandoned, grab a backup snapshot so we can compare it with the
// later state.
bkupBefore, err := ioutil.ReadFile(net.Alice.ChanBackupPath())
if err != nil {
t.Fatalf("could not get channel backup before abandoning "+
"channel: %v", err)
}
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// Send request to abandon channel.
abandonChannelRequest := &lnrpc.AbandonChannelRequest{
ChannelPoint: chanPoint,
}
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
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_, err = net.Alice.AbandonChannel(ctxt, abandonChannelRequest)
if err != nil {
t.Fatalf("unable to abandon channel: %v", err)
}
// Assert that channel in no longer open.
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
aliceChannelList, err = net.Alice.ListChannels(ctxt, listReq)
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if err != nil {
t.Fatalf("unable to list channels: %v", err)
}
if len(aliceChannelList.Channels) != 0 {
t.Fatalf("alice should only have no channels open, "+
"instead she has %v",
len(aliceChannelList.Channels))
}
// Assert that channel is not pending closure.
pendingReq := &lnrpc.PendingChannelsRequest{}
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
alicePendingList, err := net.Alice.PendingChannels(ctxt, pendingReq)
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if err != nil {
t.Fatalf("unable to list pending channels: %v", err)
}
if len(alicePendingList.PendingClosingChannels) != 0 { //nolint:staticcheck
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t.Fatalf("alice should only have no pending closing channels, "+
"instead she has %v",
len(alicePendingList.PendingClosingChannels)) //nolint:staticcheck
2018-06-20 10:09:02 +03:00
}
if len(alicePendingList.PendingForceClosingChannels) != 0 {
t.Fatalf("alice should only have no pending force closing "+
"channels instead she has %v",
len(alicePendingList.PendingForceClosingChannels))
}
if len(alicePendingList.WaitingCloseChannels) != 0 {
t.Fatalf("alice should only have no waiting close "+
"channels instead she has %v",
len(alicePendingList.WaitingCloseChannels))
}
// Assert that channel is listed as abandoned.
closedReq := &lnrpc.ClosedChannelsRequest{
Abandoned: true,
}
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
aliceClosedList, err := net.Alice.ClosedChannels(ctxt, closedReq)
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if err != nil {
t.Fatalf("unable to list closed channels: %v", err)
}
if len(aliceClosedList.Channels) != 1 {
t.Fatalf("alice should only have a single abandoned channel, "+
"instead she has %v",
len(aliceClosedList.Channels))
}
// Ensure that the channel can no longer be found in the channel graph.
_, err = net.Alice.GetChanInfo(ctxb, &lnrpc.ChanInfoRequest{
ChanId: chanID,
})
if !strings.Contains(err.Error(), "marked as zombie") {
t.Fatalf("channel shouldn't be found in the channel " +
"graph!")
}
// Make sure the channel is no longer in the channel backup list.
err = wait.Predicate(func() bool {
bkupAfter, err := ioutil.ReadFile(net.Alice.ChanBackupPath())
if err != nil {
t.Fatalf("could not get channel backup before "+
"abandoning channel: %v", err)
}
return len(bkupAfter) < len(bkupBefore)
}, defaultTimeout)
if err != nil {
t.Fatalf("channel wasn't removed from channel backup file")
}
// Calling AbandonChannel again, should result in no new errors, as the
// channel has already been removed.
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
_, err = net.Alice.AbandonChannel(ctxt, abandonChannelRequest)
if err != nil {
t.Fatalf("unable to abandon channel a second time: %v", err)
}
// Now that we're done with the test, the channel can be closed. This
// is necessary to avoid unexpected outcomes of other tests that use
// Bob's lnd instance.
ctxt, _ = context.WithTimeout(ctxb, channelCloseTimeout)
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closeChannelAndAssert(ctxt, t, net, net.Bob, chanPoint, true)
// Cleanup by mining the force close and sweep transaction.
cleanupForceClose(t, net, net.Bob, chanPoint)
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}
// testSweepAllCoins tests that we're able to properly sweep all coins from the
// wallet into a single target address at the specified fee rate.
func testSweepAllCoins(net *lntest.NetworkHarness, t *harnessTest) {
ctxb := context.Background()
// First, we'll make a new node, ainz who'll we'll use to test wallet
// sweeping.
ainz := net.NewNode(t.t, "Ainz", nil)
defer shutdownAndAssert(net, t, ainz)
// Next, we'll give Ainz exactly 2 utxos of 1 BTC each, with one of
// them being p2wkh and the other being a n2wpkh address.
ctxt, _ := context.WithTimeout(ctxb, defaultTimeout)
net.SendCoins(ctxt, t.t, btcutil.SatoshiPerBitcoin, ainz)
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
net.SendCoinsNP2WKH(ctxt, t.t, btcutil.SatoshiPerBitcoin, ainz)
// Ensure that we can't send coins to our own Pubkey.
info, err := ainz.GetInfo(ctxt, &lnrpc.GetInfoRequest{})
if err != nil {
t.Fatalf("unable to get node info: %v", err)
}
// Create a label that we will used to label the transaction with.
sendCoinsLabel := "send all coins"
sweepReq := &lnrpc.SendCoinsRequest{
Addr: info.IdentityPubkey,
SendAll: true,
Label: sendCoinsLabel,
}
_, err = ainz.SendCoins(ctxt, sweepReq)
if err == nil {
t.Fatalf("expected SendCoins to users own pubkey to fail")
}
// Ensure that we can't send coins to another users Pubkey.
info, err = net.Alice.GetInfo(ctxt, &lnrpc.GetInfoRequest{})
if err != nil {
t.Fatalf("unable to get node info: %v", err)
}
sweepReq = &lnrpc.SendCoinsRequest{
Addr: info.IdentityPubkey,
SendAll: true,
Label: sendCoinsLabel,
}
_, err = ainz.SendCoins(ctxt, sweepReq)
if err == nil {
t.Fatalf("expected SendCoins to Alices pubkey to fail")
}
// With the two coins above mined, we'll now instruct ainz to sweep all
// the coins to an external address not under its control.
// We will first attempt to send the coins to addresses that are not
// compatible with the current network. This is to test that the wallet
// will prevent any onchain transactions to addresses that are not on the
// same network as the user.
// Send coins to a testnet3 address.
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
sweepReq = &lnrpc.SendCoinsRequest{
Addr: "tb1qfc8fusa98jx8uvnhzavxccqlzvg749tvjw82tg",
SendAll: true,
Label: sendCoinsLabel,
}
_, err = ainz.SendCoins(ctxt, sweepReq)
if err == nil {
t.Fatalf("expected SendCoins to different network to fail")
}
// Send coins to a mainnet address.
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
sweepReq = &lnrpc.SendCoinsRequest{
Addr: "1MPaXKp5HhsLNjVSqaL7fChE3TVyrTMRT3",
SendAll: true,
Label: sendCoinsLabel,
}
_, err = ainz.SendCoins(ctxt, sweepReq)
if err == nil {
t.Fatalf("expected SendCoins to different network to fail")
}
// Send coins to a compatible address.
minerAddr, err := net.Miner.NewAddress()
if err != nil {
t.Fatalf("unable to create new miner addr: %v", err)
}
sweepReq = &lnrpc.SendCoinsRequest{
Addr: minerAddr.String(),
SendAll: true,
Label: sendCoinsLabel,
}
ctxt, _ = context.WithTimeout(ctxb, defaultTimeout)
_, err = ainz.SendCoins(ctxt, sweepReq)
if err != nil {
t.Fatalf("unable to sweep coins: %v", err)
}
// We'll mine a block which should include the sweep transaction we
// generated above.
block := mineBlocks(t, net, 1, 1)[0]
// The sweep transaction should have exactly two inputs as we only had
// two UTXOs in the wallet.
sweepTx := block.Transactions[1]
if len(sweepTx.TxIn) != 2 {
t.Fatalf("expected 2 inputs instead have %v", len(sweepTx.TxIn))
}
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sweepTxStr := sweepTx.TxHash().String()
assertTxLabel(ctxb, t, ainz, sweepTxStr, sendCoinsLabel)
// While we are looking at labels, we test our label transaction command
// to make sure it is behaving as expected. First, we try to label our
// transaction with an empty label, and check that we fail as expected.
sweepHash := sweepTx.TxHash()
_, err = ainz.WalletKitClient.LabelTransaction(
ctxt, &walletrpc.LabelTransactionRequest{
Txid: sweepHash[:],
Label: "",
Overwrite: false,
},
)
if err == nil {
t.Fatalf("expected error for zero transaction label")
}
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// Our error will be wrapped in a rpc error, so we check that it
// contains the error we expect.
errZeroLabel := "cannot label transaction with empty label"
if !strings.Contains(err.Error(), errZeroLabel) {
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t.Fatalf("expected: zero label error, got: %v", err)
}
// Next, we try to relabel our transaction without setting the overwrite
// boolean. We expect this to fail, because the wallet requires setting
// of this param to prevent accidental overwrite of labels.
_, err = ainz.WalletKitClient.LabelTransaction(
ctxt, &walletrpc.LabelTransactionRequest{
Txid: sweepHash[:],
Label: "label that will not work",
Overwrite: false,
},
)
if err == nil {
t.Fatalf("expected error for tx already labelled")
}
// Our error will be wrapped in a rpc error, so we check that it
// contains the error we expect.
if !strings.Contains(err.Error(), wallet.ErrTxLabelExists.Error()) {
t.Fatalf("expected: label exists, got: %v", err)
}
// Finally, we overwrite our label with a new label, which should not
// fail.
newLabel := "new sweep tx label"
_, err = ainz.WalletKitClient.LabelTransaction(
ctxt, &walletrpc.LabelTransactionRequest{
Txid: sweepHash[:],
Label: newLabel,
Overwrite: true,
},
)
if err != nil {
t.Fatalf("could not label tx: %v", err)
}
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assertTxLabel(ctxb, t, ainz, sweepTxStr, newLabel)
// Finally, Ainz should now have no coins at all within his wallet.
balReq := &lnrpc.WalletBalanceRequest{}
resp, err := ainz.WalletBalance(ctxt, balReq)
if err != nil {
t.Fatalf("unable to get ainz's balance: %v", err)
}
switch {
case resp.ConfirmedBalance != 0:
t.Fatalf("expected no confirmed balance, instead have %v",
resp.ConfirmedBalance)
case resp.UnconfirmedBalance != 0:
t.Fatalf("expected no unconfirmed balance, instead have %v",
resp.UnconfirmedBalance)
}
// If we try again, but this time specifying an amount, then the call
// should fail.
sweepReq.Amount = 10000
_, err = ainz.SendCoins(ctxt, sweepReq)
if err == nil {
t.Fatalf("sweep attempt should fail")
}
}
// TestLightningNetworkDaemon performs a series of integration tests amongst a
// programmatically driven network of lnd nodes.
func TestLightningNetworkDaemon(t *testing.T) {
2020-10-26 16:21:05 +03:00
// If no tests are registered, then we can exit early.
if len(allTestCases) == 0 {
t.Skip("integration tests not selected with flag 'rpctest'")
}
// Parse testing flags that influence our test execution.
2020-11-04 13:03:30 +03:00
logDir := lntest.GetLogDir()
require.NoError(t, os.MkdirAll(logDir, 0700))
testCases, trancheIndex, trancheOffset := getTestCaseSplitTranche()
lntest.ApplyPortOffset(uint32(trancheIndex) * 1000)
// Before we start any node, we need to make sure that any btcd node
// that is started through the RPC harness uses a unique port as well to
// avoid any port collisions.
rpctest.ListenAddressGenerator = lntest.GenerateBtcdListenerAddresses
// Declare the network harness here to gain access to its
// 'OnTxAccepted' call back.
var lndHarness *lntest.NetworkHarness
// Create an instance of the btcd's rpctest.Harness that will act as
// the miner for all tests. This will be used to fund the wallets of
// the nodes within the test network and to drive blockchain related
// events within the network. Revert the default setting of accepting
// non-standard transactions on simnet to reject them. Transactions on
// the lightning network should always be standard to get better
// guarantees of getting included in to blocks.
//
// We will also connect it to our chain backend.
2020-11-04 13:03:30 +03:00
minerLogDir := fmt.Sprintf("%s/.minerlogs", logDir)
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miner, minerCleanUp, err := lntest.NewMiner(
minerLogDir, "output_btcd_miner.log", harnessNetParams,
&rpcclient.NotificationHandlers{}, lntest.GetBtcdBinary(),
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)
require.NoError(t, err, "failed to create new miner")
defer func() {
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require.NoError(t, minerCleanUp(), "failed to clean up miner")
}()
// Start a chain backend.
chainBackend, cleanUp, err := lntest.NewBackend(
miner.P2PAddress(), harnessNetParams,
)
require.NoError(t, err, "new backend")
defer func() {
require.NoError(t, cleanUp(), "cleanup")
}()
// Before we start anything, we want to overwrite some of the connection
// settings to make the tests more robust. We might need to restart the
// miner while there are already blocks present, which will take a bit
// longer than the 1 second the default settings amount to. Doubling
// both values will give us retries up to 4 seconds.
miner.MaxConnRetries = rpctest.DefaultMaxConnectionRetries * 2
miner.ConnectionRetryTimeout = rpctest.DefaultConnectionRetryTimeout * 2
// Set up miner and connect chain backend to it.
require.NoError(t, miner.SetUp(true, 50))
require.NoError(t, miner.Client.NotifyNewTransactions(false))
require.NoError(t, chainBackend.ConnectMiner(), "connect miner")
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// Parse database backend
var dbBackend lntest.DatabaseBackend
switch *dbBackendFlag {
case "bbolt":
dbBackend = lntest.BackendBbolt
case "etcd":
dbBackend = lntest.BackendEtcd
default:
require.Fail(t, "unknown db backend")
}
// Now we can set up our test harness (LND instance), with the chain
// backend we just created.
ht := newHarnessTest(t, nil)
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binary := ht.getLndBinary()
lndHarness, err = lntest.NewNetworkHarness(
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miner, chainBackend, binary, dbBackend,
)
if err != nil {
ht.Fatalf("unable to create lightning network harness: %v", err)
}
defer lndHarness.Stop()
// Spawn a new goroutine to watch for any fatal errors that any of the
// running lnd processes encounter. If an error occurs, then the test
// case should naturally as a result and we log the server error here to
// help debug.
go func() {
for {
select {
case err, more := <-lndHarness.ProcessErrors():
if !more {
return
}
ht.Logf("lnd finished with error (stderr):\n%v",
err)
}
}
}()
// Next mine enough blocks in order for segwit and the CSV package
// soft-fork to activate on SimNet.
numBlocks := harnessNetParams.MinerConfirmationWindow * 2
if _, err := miner.Client.Generate(numBlocks); err != nil {
ht.Fatalf("unable to generate blocks: %v", err)
}
// With the btcd harness created, we can now complete the
// initialization of the network. args - list of lnd arguments,
// example: "--debuglevel=debug"
// TODO(roasbeef): create master balanced channel with all the monies?
aliceBobArgs := []string{
"--default-remote-max-htlcs=483",
}
// Run the subset of the test cases selected in this tranche.
for idx, testCase := range testCases {
testCase := testCase
name := fmt.Sprintf("%02d-of-%d/%s/%s",
trancheOffset+uint(idx)+1, len(allTestCases),
chainBackend.Name(), testCase.name)
success := t.Run(name, func(t1 *testing.T) {
cleanTestCaseName := strings.ReplaceAll(
testCase.name, " ", "_",
)
err = lndHarness.SetUp(
t1, cleanTestCaseName, aliceBobArgs,
)
require.NoError(t1,
err, "unable to set up test lightning network",
)
defer func() {
require.NoError(t1, lndHarness.TearDown())
}()
lndHarness.EnsureConnected(
context.Background(), t1,
lndHarness.Alice, lndHarness.Bob,
)
logLine := fmt.Sprintf(
"STARTING ============ %v ============\n",
testCase.name,
)
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AddToNodeLog(t, lndHarness.Alice, logLine)
AddToNodeLog(t, lndHarness.Bob, logLine)
// Start every test with the default static fee estimate.
lndHarness.SetFeeEstimate(12500)
// Create a separate harness test for the testcase to
// avoid overwriting the external harness test that is
// tied to the parent test.
ht := newHarnessTest(t1, lndHarness)
ht.RunTestCase(testCase)
})
// Stop at the first failure. Mimic behavior of original test
// framework.
if !success {
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// Log failure time to help relate the lnd logs to the
// failure.
t.Logf("Failure time: %v", time.Now().Format(
"2006-01-02 15:04:05.000",
))
break
}
}
}