lnd.xprv/htlcswitch/mock.go
Joost Jager e54b24289f
htlcswitch: move hop iterator into htlcswitch/hop package
Prepares for onion blob decoding outside of htlcswitch.
2019-09-05 15:30:31 +02:00

994 lines
22 KiB
Go

package htlcswitch
import (
"bytes"
"crypto/sha256"
"encoding/binary"
"fmt"
"io"
"io/ioutil"
"net"
"os"
"sync"
"sync/atomic"
"testing"
"time"
"github.com/btcsuite/btcd/btcec"
"github.com/btcsuite/btcd/chaincfg/chainhash"
"github.com/btcsuite/btcd/txscript"
"github.com/btcsuite/btcd/wire"
"github.com/go-errors/errors"
sphinx "github.com/lightningnetwork/lightning-onion"
"github.com/lightningnetwork/lnd/chainntnfs"
"github.com/lightningnetwork/lnd/channeldb"
"github.com/lightningnetwork/lnd/contractcourt"
"github.com/lightningnetwork/lnd/htlcswitch/hop"
"github.com/lightningnetwork/lnd/input"
"github.com/lightningnetwork/lnd/invoices"
"github.com/lightningnetwork/lnd/lnpeer"
"github.com/lightningnetwork/lnd/lntypes"
"github.com/lightningnetwork/lnd/lnwallet"
"github.com/lightningnetwork/lnd/lnwire"
"github.com/lightningnetwork/lnd/ticker"
)
type mockPreimageCache struct {
sync.Mutex
preimageMap map[lntypes.Hash]lntypes.Preimage
}
func newMockPreimageCache() *mockPreimageCache {
return &mockPreimageCache{
preimageMap: make(map[lntypes.Hash]lntypes.Preimage),
}
}
func (m *mockPreimageCache) LookupPreimage(
hash lntypes.Hash) (lntypes.Preimage, bool) {
m.Lock()
defer m.Unlock()
p, ok := m.preimageMap[hash]
return p, ok
}
func (m *mockPreimageCache) AddPreimages(preimages ...lntypes.Preimage) error {
m.Lock()
defer m.Unlock()
for _, preimage := range preimages {
m.preimageMap[preimage.Hash()] = preimage
}
return nil
}
func (m *mockPreimageCache) SubscribeUpdates() *contractcourt.WitnessSubscription {
return nil
}
type mockFeeEstimator struct {
byteFeeIn chan lnwallet.SatPerKWeight
quit chan struct{}
}
func (m *mockFeeEstimator) EstimateFeePerKW(
numBlocks uint32) (lnwallet.SatPerKWeight, error) {
select {
case feeRate := <-m.byteFeeIn:
return feeRate, nil
case <-m.quit:
return 0, fmt.Errorf("exiting")
}
}
func (m *mockFeeEstimator) RelayFeePerKW() lnwallet.SatPerKWeight {
return 1e3
}
func (m *mockFeeEstimator) Start() error {
return nil
}
func (m *mockFeeEstimator) Stop() error {
close(m.quit)
return nil
}
var _ lnwallet.FeeEstimator = (*mockFeeEstimator)(nil)
type mockForwardingLog struct {
sync.Mutex
events map[time.Time]channeldb.ForwardingEvent
}
func (m *mockForwardingLog) AddForwardingEvents(events []channeldb.ForwardingEvent) error {
m.Lock()
defer m.Unlock()
for _, event := range events {
m.events[event.Timestamp] = event
}
return nil
}
type mockServer struct {
started int32 // To be used atomically.
shutdown int32 // To be used atomically.
wg sync.WaitGroup
quit chan struct{}
t testing.TB
name string
messages chan lnwire.Message
errChan chan error
id [33]byte
htlcSwitch *Switch
registry *mockInvoiceRegistry
pCache *mockPreimageCache
interceptorFuncs []messageInterceptor
}
var _ lnpeer.Peer = (*mockServer)(nil)
func initDB() (*channeldb.DB, error) {
tempPath, err := ioutil.TempDir("", "switchdb")
if err != nil {
return nil, err
}
db, err := channeldb.Open(tempPath)
if err != nil {
return nil, err
}
return db, err
}
func initSwitchWithDB(startingHeight uint32, db *channeldb.DB) (*Switch, error) {
var err error
if db == nil {
db, err = initDB()
if err != nil {
return nil, err
}
}
cfg := Config{
DB: db,
SwitchPackager: channeldb.NewSwitchPackager(),
FwdingLog: &mockForwardingLog{
events: make(map[time.Time]channeldb.ForwardingEvent),
},
FetchLastChannelUpdate: func(lnwire.ShortChannelID) (*lnwire.ChannelUpdate, error) {
return nil, nil
},
Notifier: &mockNotifier{},
FwdEventTicker: ticker.NewForce(DefaultFwdEventInterval),
LogEventTicker: ticker.NewForce(DefaultLogInterval),
AckEventTicker: ticker.NewForce(DefaultAckInterval),
NotifyActiveChannel: func(wire.OutPoint) {},
NotifyInactiveChannel: func(wire.OutPoint) {},
}
return New(cfg, startingHeight)
}
func newMockServer(t testing.TB, name string, startingHeight uint32,
db *channeldb.DB, defaultDelta uint32) (*mockServer, error) {
var id [33]byte
h := sha256.Sum256([]byte(name))
copy(id[:], h[:])
pCache := newMockPreimageCache()
htlcSwitch, err := initSwitchWithDB(startingHeight, db)
if err != nil {
return nil, err
}
registry := newMockRegistry(defaultDelta)
return &mockServer{
t: t,
id: id,
name: name,
messages: make(chan lnwire.Message, 3000),
quit: make(chan struct{}),
registry: registry,
htlcSwitch: htlcSwitch,
pCache: pCache,
interceptorFuncs: make([]messageInterceptor, 0),
}, nil
}
func (s *mockServer) Start() error {
if !atomic.CompareAndSwapInt32(&s.started, 0, 1) {
return errors.New("mock server already started")
}
if err := s.htlcSwitch.Start(); err != nil {
return err
}
s.wg.Add(1)
go func() {
defer s.wg.Done()
defer func() {
s.htlcSwitch.Stop()
}()
for {
select {
case msg := <-s.messages:
var shouldSkip bool
for _, interceptor := range s.interceptorFuncs {
skip, err := interceptor(msg)
if err != nil {
s.t.Fatalf("%v: error in the "+
"interceptor: %v", s.name, err)
return
}
shouldSkip = shouldSkip || skip
}
if shouldSkip {
continue
}
if err := s.readHandler(msg); err != nil {
s.t.Fatal(err)
return
}
case <-s.quit:
return
}
}
}()
return nil
}
func (s *mockServer) QuitSignal() <-chan struct{} {
return s.quit
}
// mockHopIterator represents the test version of hop iterator which instead
// of encrypting the path in onion blob just stores the path as a list of hops.
type mockHopIterator struct {
hops []hop.ForwardingInfo
}
func newMockHopIterator(hops ...hop.ForwardingInfo) hop.Iterator {
return &mockHopIterator{hops: hops}
}
func (r *mockHopIterator) ForwardingInstructions() (
hop.ForwardingInfo, error) {
h := r.hops[0]
r.hops = r.hops[1:]
return h, nil
}
func (r *mockHopIterator) ExtraOnionBlob() []byte {
return nil
}
func (r *mockHopIterator) ExtractErrorEncrypter(
extracter hop.ErrorEncrypterExtracter) (hop.ErrorEncrypter,
lnwire.FailCode) {
return extracter(nil)
}
func (r *mockHopIterator) EncodeNextHop(w io.Writer) error {
var hopLength [4]byte
binary.BigEndian.PutUint32(hopLength[:], uint32(len(r.hops)))
if _, err := w.Write(hopLength[:]); err != nil {
return err
}
for _, hop := range r.hops {
if err := encodeFwdInfo(w, &hop); err != nil {
return err
}
}
return nil
}
func encodeFwdInfo(w io.Writer, f *hop.ForwardingInfo) error {
if _, err := w.Write([]byte{byte(f.Network)}); err != nil {
return err
}
if err := binary.Write(w, binary.BigEndian, f.NextHop); err != nil {
return err
}
if err := binary.Write(w, binary.BigEndian, f.AmountToForward); err != nil {
return err
}
if err := binary.Write(w, binary.BigEndian, f.OutgoingCTLV); err != nil {
return err
}
return nil
}
var _ hop.Iterator = (*mockHopIterator)(nil)
// mockObfuscator mock implementation of the failure obfuscator which only
// encodes the failure and do not makes any onion obfuscation.
type mockObfuscator struct {
ogPacket *sphinx.OnionPacket
}
// NewMockObfuscator initializes a dummy mockObfuscator used for testing.
func NewMockObfuscator() hop.ErrorEncrypter {
return &mockObfuscator{}
}
func (o *mockObfuscator) OnionPacket() *sphinx.OnionPacket {
return o.ogPacket
}
func (o *mockObfuscator) Type() hop.EncrypterType {
return hop.EncrypterTypeMock
}
func (o *mockObfuscator) Encode(w io.Writer) error {
return nil
}
func (o *mockObfuscator) Decode(r io.Reader) error {
return nil
}
func (o *mockObfuscator) Reextract(
extracter hop.ErrorEncrypterExtracter) error {
return nil
}
func (o *mockObfuscator) EncryptFirstHop(failure lnwire.FailureMessage) (
lnwire.OpaqueReason, error) {
var b bytes.Buffer
if err := lnwire.EncodeFailure(&b, failure, 0); err != nil {
return nil, err
}
return b.Bytes(), nil
}
func (o *mockObfuscator) IntermediateEncrypt(reason lnwire.OpaqueReason) lnwire.OpaqueReason {
return reason
}
func (o *mockObfuscator) EncryptMalformedError(reason lnwire.OpaqueReason) lnwire.OpaqueReason {
return reason
}
// mockDeobfuscator mock implementation of the failure deobfuscator which
// only decodes the failure do not makes any onion obfuscation.
type mockDeobfuscator struct{}
func newMockDeobfuscator() ErrorDecrypter {
return &mockDeobfuscator{}
}
func (o *mockDeobfuscator) DecryptError(reason lnwire.OpaqueReason) (*ForwardingError, error) {
r := bytes.NewReader(reason)
failure, err := lnwire.DecodeFailure(r, 0)
if err != nil {
return nil, err
}
return &ForwardingError{
FailureSourceIdx: 1,
FailureMessage: failure,
}, nil
}
var _ ErrorDecrypter = (*mockDeobfuscator)(nil)
// mockIteratorDecoder test version of hop iterator decoder which decodes the
// encoded array of hops.
type mockIteratorDecoder struct {
mu sync.RWMutex
responses map[[32]byte][]hop.DecodeHopIteratorResponse
decodeFail bool
}
func newMockIteratorDecoder() *mockIteratorDecoder {
return &mockIteratorDecoder{
responses: make(map[[32]byte][]hop.DecodeHopIteratorResponse),
}
}
func (p *mockIteratorDecoder) DecodeHopIterator(r io.Reader, rHash []byte,
cltv uint32) (hop.Iterator, lnwire.FailCode) {
var b [4]byte
_, err := r.Read(b[:])
if err != nil {
return nil, lnwire.CodeTemporaryChannelFailure
}
hopLength := binary.BigEndian.Uint32(b[:])
hops := make([]hop.ForwardingInfo, hopLength)
for i := uint32(0); i < hopLength; i++ {
f := &hop.ForwardingInfo{}
if err := decodeFwdInfo(r, f); err != nil {
return nil, lnwire.CodeTemporaryChannelFailure
}
hops[i] = *f
}
return newMockHopIterator(hops...), lnwire.CodeNone
}
func (p *mockIteratorDecoder) DecodeHopIterators(id []byte,
reqs []hop.DecodeHopIteratorRequest) (
[]hop.DecodeHopIteratorResponse, error) {
idHash := sha256.Sum256(id)
p.mu.RLock()
if resps, ok := p.responses[idHash]; ok {
p.mu.RUnlock()
return resps, nil
}
p.mu.RUnlock()
batchSize := len(reqs)
resps := make([]hop.DecodeHopIteratorResponse, 0, batchSize)
for _, req := range reqs {
iterator, failcode := p.DecodeHopIterator(
req.OnionReader, req.RHash, req.IncomingCltv,
)
if p.decodeFail {
failcode = lnwire.CodeTemporaryChannelFailure
}
resp := hop.DecodeHopIteratorResponse{
HopIterator: iterator,
FailCode: failcode,
}
resps = append(resps, resp)
}
p.mu.Lock()
p.responses[idHash] = resps
p.mu.Unlock()
return resps, nil
}
func decodeFwdInfo(r io.Reader, f *hop.ForwardingInfo) error {
var net [1]byte
if _, err := r.Read(net[:]); err != nil {
return err
}
f.Network = hop.Network(net[0])
if err := binary.Read(r, binary.BigEndian, &f.NextHop); err != nil {
return err
}
if err := binary.Read(r, binary.BigEndian, &f.AmountToForward); err != nil {
return err
}
if err := binary.Read(r, binary.BigEndian, &f.OutgoingCTLV); err != nil {
return err
}
return nil
}
// messageInterceptor is function that handles the incoming peer messages and
// may decide should the peer skip the message or not.
type messageInterceptor func(m lnwire.Message) (bool, error)
// Record is used to set the function which will be triggered when new
// lnwire message was received.
func (s *mockServer) intersect(f messageInterceptor) {
s.interceptorFuncs = append(s.interceptorFuncs, f)
}
func (s *mockServer) SendMessage(sync bool, msgs ...lnwire.Message) error {
for _, msg := range msgs {
select {
case s.messages <- msg:
case <-s.quit:
return errors.New("server is stopped")
}
}
return nil
}
func (s *mockServer) SendMessageLazy(sync bool, msgs ...lnwire.Message) error {
panic("not implemented")
}
func (s *mockServer) readHandler(message lnwire.Message) error {
var targetChan lnwire.ChannelID
switch msg := message.(type) {
case *lnwire.UpdateAddHTLC:
targetChan = msg.ChanID
case *lnwire.UpdateFulfillHTLC:
targetChan = msg.ChanID
case *lnwire.UpdateFailHTLC:
targetChan = msg.ChanID
case *lnwire.UpdateFailMalformedHTLC:
targetChan = msg.ChanID
case *lnwire.RevokeAndAck:
targetChan = msg.ChanID
case *lnwire.CommitSig:
targetChan = msg.ChanID
case *lnwire.FundingLocked:
// Ignore
return nil
case *lnwire.ChannelReestablish:
targetChan = msg.ChanID
case *lnwire.UpdateFee:
targetChan = msg.ChanID
default:
return fmt.Errorf("unknown message type: %T", msg)
}
// Dispatch the commitment update message to the proper channel link
// dedicated to this channel. If the link is not found, we will discard
// the message.
link, err := s.htlcSwitch.GetLink(targetChan)
if err != nil {
return nil
}
// Create goroutine for this, in order to be able to properly stop
// the server when handler stacked (server unavailable)
link.HandleChannelUpdate(message)
return nil
}
func (s *mockServer) PubKey() [33]byte {
return s.id
}
func (s *mockServer) IdentityKey() *btcec.PublicKey {
pubkey, _ := btcec.ParsePubKey(s.id[:], btcec.S256())
return pubkey
}
func (s *mockServer) Address() net.Addr {
return nil
}
func (s *mockServer) AddNewChannel(channel *channeldb.OpenChannel,
cancel <-chan struct{}) error {
return nil
}
func (s *mockServer) WipeChannel(*wire.OutPoint) error {
return nil
}
func (s *mockServer) Stop() error {
if !atomic.CompareAndSwapInt32(&s.shutdown, 0, 1) {
return nil
}
close(s.quit)
s.wg.Wait()
return nil
}
func (s *mockServer) String() string {
return s.name
}
type mockChannelLink struct {
htlcSwitch *Switch
shortChanID lnwire.ShortChannelID
chanID lnwire.ChannelID
peer lnpeer.Peer
startMailBox bool
mailBox MailBox
packets chan *htlcPacket
eligible bool
htlcID uint64
htlcSatifiesPolicyLocalResult lnwire.FailureMessage
}
// completeCircuit is a helper method for adding the finalized payment circuit
// to the switch's circuit map. In testing, this should be executed after
// receiving an htlc from the downstream packets channel.
func (f *mockChannelLink) completeCircuit(pkt *htlcPacket) error {
switch htlc := pkt.htlc.(type) {
case *lnwire.UpdateAddHTLC:
pkt.outgoingChanID = f.shortChanID
pkt.outgoingHTLCID = f.htlcID
htlc.ID = f.htlcID
keystone := Keystone{pkt.inKey(), pkt.outKey()}
if err := f.htlcSwitch.openCircuits(keystone); err != nil {
return err
}
f.htlcID++
case *lnwire.UpdateFulfillHTLC, *lnwire.UpdateFailHTLC:
err := f.htlcSwitch.teardownCircuit(pkt)
if err != nil {
return err
}
}
f.mailBox.AckPacket(pkt.inKey())
return nil
}
func (f *mockChannelLink) deleteCircuit(pkt *htlcPacket) error {
return f.htlcSwitch.deleteCircuits(pkt.inKey())
}
func newMockChannelLink(htlcSwitch *Switch, chanID lnwire.ChannelID,
shortChanID lnwire.ShortChannelID, peer lnpeer.Peer, eligible bool,
) *mockChannelLink {
return &mockChannelLink{
htlcSwitch: htlcSwitch,
chanID: chanID,
shortChanID: shortChanID,
peer: peer,
eligible: eligible,
}
}
func (f *mockChannelLink) HandleSwitchPacket(pkt *htlcPacket) error {
f.mailBox.AddPacket(pkt)
return nil
}
func (f *mockChannelLink) HandleChannelUpdate(lnwire.Message) {
}
func (f *mockChannelLink) UpdateForwardingPolicy(_ ForwardingPolicy) {
}
func (f *mockChannelLink) HtlcSatifiesPolicy([32]byte, lnwire.MilliSatoshi,
lnwire.MilliSatoshi, uint32, uint32, uint32) lnwire.FailureMessage {
return nil
}
func (f *mockChannelLink) HtlcSatifiesPolicyLocal(payHash [32]byte,
amt lnwire.MilliSatoshi, timeout uint32,
heightNow uint32) lnwire.FailureMessage {
return f.htlcSatifiesPolicyLocalResult
}
func (f *mockChannelLink) Stats() (uint64, lnwire.MilliSatoshi, lnwire.MilliSatoshi) {
return 0, 0, 0
}
func (f *mockChannelLink) AttachMailBox(mailBox MailBox) {
f.mailBox = mailBox
f.packets = mailBox.PacketOutBox()
}
func (f *mockChannelLink) Start() error {
f.mailBox.ResetMessages()
f.mailBox.ResetPackets()
return nil
}
func (f *mockChannelLink) ChanID() lnwire.ChannelID { return f.chanID }
func (f *mockChannelLink) ShortChanID() lnwire.ShortChannelID { return f.shortChanID }
func (f *mockChannelLink) Bandwidth() lnwire.MilliSatoshi { return 99999999 }
func (f *mockChannelLink) Peer() lnpeer.Peer { return f.peer }
func (f *mockChannelLink) ChannelPoint() *wire.OutPoint { return &wire.OutPoint{} }
func (f *mockChannelLink) Stop() {}
func (f *mockChannelLink) EligibleToForward() bool { return f.eligible }
func (f *mockChannelLink) setLiveShortChanID(sid lnwire.ShortChannelID) { f.shortChanID = sid }
func (f *mockChannelLink) UpdateShortChanID() (lnwire.ShortChannelID, error) {
f.eligible = true
return f.shortChanID, nil
}
var _ ChannelLink = (*mockChannelLink)(nil)
func newDB() (*channeldb.DB, func(), error) {
// First, create a temporary directory to be used for the duration of
// this test.
tempDirName, err := ioutil.TempDir("", "channeldb")
if err != nil {
return nil, nil, err
}
// Next, create channeldb for the first time.
cdb, err := channeldb.Open(tempDirName)
if err != nil {
os.RemoveAll(tempDirName)
return nil, nil, err
}
cleanUp := func() {
cdb.Close()
os.RemoveAll(tempDirName)
}
return cdb, cleanUp, nil
}
const testInvoiceCltvExpiry = 6
type mockInvoiceRegistry struct {
settleChan chan lntypes.Hash
registry *invoices.InvoiceRegistry
cleanup func()
}
func newMockRegistry(minDelta uint32) *mockInvoiceRegistry {
cdb, cleanup, err := newDB()
if err != nil {
panic(err)
}
finalCltvRejectDelta := int32(5)
registry := invoices.NewRegistry(cdb, finalCltvRejectDelta)
registry.Start()
return &mockInvoiceRegistry{
registry: registry,
cleanup: cleanup,
}
}
func (i *mockInvoiceRegistry) LookupInvoice(rHash lntypes.Hash) (
channeldb.Invoice, error) {
return i.registry.LookupInvoice(rHash)
}
func (i *mockInvoiceRegistry) SettleHodlInvoice(preimage lntypes.Preimage) error {
return i.registry.SettleHodlInvoice(preimage)
}
func (i *mockInvoiceRegistry) NotifyExitHopHtlc(rhash lntypes.Hash,
amt lnwire.MilliSatoshi, expiry uint32, currentHeight int32,
circuitKey channeldb.CircuitKey, hodlChan chan<- interface{},
eob []byte) (*invoices.HodlEvent, error) {
event, err := i.registry.NotifyExitHopHtlc(
rhash, amt, expiry, currentHeight, circuitKey, hodlChan, eob,
)
if err != nil {
return nil, err
}
if i.settleChan != nil {
i.settleChan <- rhash
}
return event, nil
}
func (i *mockInvoiceRegistry) CancelInvoice(payHash lntypes.Hash) error {
return i.registry.CancelInvoice(payHash)
}
func (i *mockInvoiceRegistry) AddInvoice(invoice channeldb.Invoice,
paymentHash lntypes.Hash) error {
_, err := i.registry.AddInvoice(&invoice, paymentHash)
return err
}
func (i *mockInvoiceRegistry) HodlUnsubscribeAll(subscriber chan<- interface{}) {
i.registry.HodlUnsubscribeAll(subscriber)
}
var _ InvoiceDatabase = (*mockInvoiceRegistry)(nil)
type mockSigner struct {
key *btcec.PrivateKey
}
func (m *mockSigner) SignOutputRaw(tx *wire.MsgTx, signDesc *input.SignDescriptor) ([]byte, error) {
amt := signDesc.Output.Value
witnessScript := signDesc.WitnessScript
privKey := m.key
if !privKey.PubKey().IsEqual(signDesc.KeyDesc.PubKey) {
return nil, fmt.Errorf("incorrect key passed")
}
switch {
case signDesc.SingleTweak != nil:
privKey = input.TweakPrivKey(privKey,
signDesc.SingleTweak)
case signDesc.DoubleTweak != nil:
privKey = input.DeriveRevocationPrivKey(privKey,
signDesc.DoubleTweak)
}
sig, err := txscript.RawTxInWitnessSignature(tx, signDesc.SigHashes,
signDesc.InputIndex, amt, witnessScript, signDesc.HashType,
privKey)
if err != nil {
return nil, err
}
return sig[:len(sig)-1], nil
}
func (m *mockSigner) ComputeInputScript(tx *wire.MsgTx, signDesc *input.SignDescriptor) (*input.Script, error) {
// TODO(roasbeef): expose tweaked signer from lnwallet so don't need to
// duplicate this code?
privKey := m.key
switch {
case signDesc.SingleTweak != nil:
privKey = input.TweakPrivKey(privKey,
signDesc.SingleTweak)
case signDesc.DoubleTweak != nil:
privKey = input.DeriveRevocationPrivKey(privKey,
signDesc.DoubleTweak)
}
witnessScript, err := txscript.WitnessSignature(tx, signDesc.SigHashes,
signDesc.InputIndex, signDesc.Output.Value, signDesc.Output.PkScript,
signDesc.HashType, privKey, true)
if err != nil {
return nil, err
}
return &input.Script{
Witness: witnessScript,
}, nil
}
type mockNotifier struct {
epochChan chan *chainntnfs.BlockEpoch
}
func (m *mockNotifier) RegisterConfirmationsNtfn(txid *chainhash.Hash, _ []byte,
numConfs uint32, heightHint uint32) (*chainntnfs.ConfirmationEvent, error) {
return nil, nil
}
func (m *mockNotifier) RegisterBlockEpochNtfn(
bestBlock *chainntnfs.BlockEpoch) (*chainntnfs.BlockEpochEvent, error) {
return &chainntnfs.BlockEpochEvent{
Epochs: m.epochChan,
Cancel: func() {},
}, nil
}
func (m *mockNotifier) Start() error {
return nil
}
func (m *mockNotifier) Stop() error {
return nil
}
func (m *mockNotifier) RegisterSpendNtfn(outpoint *wire.OutPoint, _ []byte,
heightHint uint32) (*chainntnfs.SpendEvent, error) {
return &chainntnfs.SpendEvent{
Spend: make(chan *chainntnfs.SpendDetail),
}, nil
}
type mockCircuitMap struct {
lookup chan *PaymentCircuit
}
var _ CircuitMap = (*mockCircuitMap)(nil)
func (m *mockCircuitMap) OpenCircuits(...Keystone) error {
return nil
}
func (m *mockCircuitMap) TrimOpenCircuits(chanID lnwire.ShortChannelID,
start uint64) error {
return nil
}
func (m *mockCircuitMap) DeleteCircuits(inKeys ...CircuitKey) error {
return nil
}
func (m *mockCircuitMap) CommitCircuits(
circuit ...*PaymentCircuit) (*CircuitFwdActions, error) {
return nil, nil
}
func (m *mockCircuitMap) CloseCircuit(outKey CircuitKey) (*PaymentCircuit,
error) {
return nil, nil
}
func (m *mockCircuitMap) FailCircuit(inKey CircuitKey) (*PaymentCircuit,
error) {
return nil, nil
}
func (m *mockCircuitMap) LookupCircuit(inKey CircuitKey) *PaymentCircuit {
return <-m.lookup
}
func (m *mockCircuitMap) LookupOpenCircuit(outKey CircuitKey) *PaymentCircuit {
return nil
}
func (m *mockCircuitMap) LookupByPaymentHash(hash [32]byte) []*PaymentCircuit {
return nil
}
func (m *mockCircuitMap) NumPending() int {
return 0
}
func (m *mockCircuitMap) NumOpen() int {
return 0
}
type mockOnionErrorDecryptor struct {
sourceIdx int
message []byte
err error
}
func (m *mockOnionErrorDecryptor) DecryptError(encryptedData []byte) (
*sphinx.DecryptedError, error) {
return &sphinx.DecryptedError{
SenderIdx: m.sourceIdx,
Message: m.message,
}, m.err
}