91f3df07e4
Modifying the static fees is not thread safe. In this commit the fees are made immutable.
592 lines
18 KiB
Go
592 lines
18 KiB
Go
// +build !rpctest
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package main
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import (
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"testing"
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"time"
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"github.com/btcsuite/btcd/wire"
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"github.com/btcsuite/btcutil"
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"github.com/lightningnetwork/lnd/chainntnfs"
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"github.com/lightningnetwork/lnd/htlcswitch"
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"github.com/lightningnetwork/lnd/lnrpc"
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"github.com/lightningnetwork/lnd/lnwallet"
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"github.com/lightningnetwork/lnd/lnwire"
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)
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// TestPeerChannelClosureAcceptFeeResponder tests the shutdown responder's
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// behavior if we can agree on the fee immediately.
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func TestPeerChannelClosureAcceptFeeResponder(t *testing.T) {
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t.Parallel()
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notifier := &mockNotfier{
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confChannel: make(chan *chainntnfs.TxConfirmation),
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}
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broadcastTxChan := make(chan *wire.MsgTx)
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responder, responderChan, initiatorChan, cleanUp, err := createTestPeer(
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notifier, broadcastTxChan)
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if err != nil {
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t.Fatalf("unable to create test channels: %v", err)
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}
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defer cleanUp()
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chanID := lnwire.NewChanIDFromOutPoint(responderChan.ChannelPoint())
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// We send a shutdown request to Alice. She will now be the responding
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// node in this shutdown procedure. We first expect Alice to answer
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// this shutdown request with a Shutdown message.
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responder.chanCloseMsgs <- &closeMsg{
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cid: chanID,
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msg: lnwire.NewShutdown(chanID, dummyDeliveryScript),
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}
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var msg lnwire.Message
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select {
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case outMsg := <-responder.outgoingQueue:
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msg = outMsg.msg
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case <-time.After(time.Second * 5):
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t.Fatalf("did not receive shutdown message")
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}
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shutdownMsg, ok := msg.(*lnwire.Shutdown)
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if !ok {
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t.Fatalf("expected Shutdown message, got %T", msg)
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}
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respDeliveryScript := shutdownMsg.Address
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// Alice will thereafter send a ClosingSigned message, indicating her
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// proposed closing transaction fee.
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select {
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case outMsg := <-responder.outgoingQueue:
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msg = outMsg.msg
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case <-time.After(time.Second * 5):
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t.Fatalf("did not receive ClosingSigned message")
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}
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responderClosingSigned, ok := msg.(*lnwire.ClosingSigned)
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if !ok {
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t.Fatalf("expected ClosingSigned message, got %T", msg)
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}
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// We accept the fee, and send a ClosingSigned with the same fee back,
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// so she knows we agreed.
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peerFee := responderClosingSigned.FeeSatoshis
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initiatorSig, _, _, err := initiatorChan.CreateCloseProposal(
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peerFee, dummyDeliveryScript, respDeliveryScript,
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)
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if err != nil {
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t.Fatalf("error creating close proposal: %v", err)
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}
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parsedSig, err := lnwire.NewSigFromRawSignature(initiatorSig)
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if err != nil {
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t.Fatalf("error parsing signature: %v", err)
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}
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closingSigned := lnwire.NewClosingSigned(chanID, peerFee, parsedSig)
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responder.chanCloseMsgs <- &closeMsg{
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cid: chanID,
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msg: closingSigned,
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}
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// The responder will now see that we agreed on the fee, and broadcast
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// the closing transaction.
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select {
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case <-broadcastTxChan:
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case <-time.After(time.Second * 5):
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t.Fatalf("closing tx not broadcast")
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}
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// And the initiator should be waiting for a confirmation notification.
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notifier.confChannel <- &chainntnfs.TxConfirmation{}
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}
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// TestPeerChannelClosureAcceptFeeInitiator tests the shutdown initiator's
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// behavior if we can agree on the fee immediately.
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func TestPeerChannelClosureAcceptFeeInitiator(t *testing.T) {
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t.Parallel()
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notifier := &mockNotfier{
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confChannel: make(chan *chainntnfs.TxConfirmation),
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}
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broadcastTxChan := make(chan *wire.MsgTx)
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initiator, initiatorChan, responderChan, cleanUp, err := createTestPeer(
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notifier, broadcastTxChan)
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if err != nil {
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t.Fatalf("unable to create test channels: %v", err)
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}
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defer cleanUp()
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// We make the initiator send a shutdown request.
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updateChan := make(chan *lnrpc.CloseStatusUpdate, 1)
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errChan := make(chan error, 1)
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closeCommand := &htlcswitch.ChanClose{
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CloseType: htlcswitch.CloseRegular,
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ChanPoint: initiatorChan.ChannelPoint(),
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Updates: updateChan,
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TargetFeePerKw: 12500,
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Err: errChan,
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}
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initiator.localCloseChanReqs <- closeCommand
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// We should now be getting the shutdown request.
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var msg lnwire.Message
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select {
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case outMsg := <-initiator.outgoingQueue:
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msg = outMsg.msg
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case <-time.After(time.Second * 5):
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t.Fatalf("did not receive shutdown request")
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}
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shutdownMsg, ok := msg.(*lnwire.Shutdown)
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if !ok {
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t.Fatalf("expected Shutdown message, got %T", msg)
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}
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initiatorDeliveryScript := shutdownMsg.Address
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// We'll answer the shutdown message with our own Shutdown, and then a
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// ClosingSigned message.
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chanID := shutdownMsg.ChannelID
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initiator.chanCloseMsgs <- &closeMsg{
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cid: chanID,
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msg: lnwire.NewShutdown(chanID,
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dummyDeliveryScript),
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}
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estimator := lnwallet.NewStaticFeeEstimator(12500, 0)
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feePerKw, err := estimator.EstimateFeePerKW(1)
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if err != nil {
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t.Fatalf("unable to query fee estimator: %v", err)
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}
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fee := responderChan.CalcFee(feePerKw)
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closeSig, _, _, err := responderChan.CreateCloseProposal(fee,
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dummyDeliveryScript, initiatorDeliveryScript)
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if err != nil {
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t.Fatalf("unable to create close proposal: %v", err)
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}
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parsedSig, err := lnwire.NewSigFromRawSignature(closeSig)
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if err != nil {
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t.Fatalf("unable to parse signature: %v", err)
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}
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closingSigned := lnwire.NewClosingSigned(shutdownMsg.ChannelID,
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fee, parsedSig)
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initiator.chanCloseMsgs <- &closeMsg{
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cid: chanID,
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msg: closingSigned,
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}
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// And we expect the initiator to accept the fee, and broadcast the
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// closing transaction.
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select {
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case outMsg := <-initiator.outgoingQueue:
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msg = outMsg.msg
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case <-time.After(time.Second * 5):
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t.Fatalf("did not receive closing signed message")
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}
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closingSignedMsg, ok := msg.(*lnwire.ClosingSigned)
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if !ok {
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t.Fatalf("expected ClosingSigned message, got %T", msg)
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}
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if closingSignedMsg.FeeSatoshis != fee {
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t.Fatalf("expected ClosingSigned fee to be %v, instead got %v",
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fee, closingSignedMsg.FeeSatoshis)
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}
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// The initiator will now see that we agreed on the fee, and broadcast
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// the closing transaction.
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select {
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case <-broadcastTxChan:
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case <-time.After(time.Second * 5):
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t.Fatalf("closing tx not broadcast")
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}
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// And the initiator should be waiting for a confirmation notification.
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notifier.confChannel <- &chainntnfs.TxConfirmation{}
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}
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// TestPeerChannelClosureFeeNegotiationsResponder tests the shutdown
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// responder's behavior in the case where we must do several rounds of fee
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// negotiation before we agree on a fee.
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func TestPeerChannelClosureFeeNegotiationsResponder(t *testing.T) {
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t.Parallel()
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notifier := &mockNotfier{
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confChannel: make(chan *chainntnfs.TxConfirmation),
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}
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broadcastTxChan := make(chan *wire.MsgTx)
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responder, responderChan, initiatorChan, cleanUp, err := createTestPeer(
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notifier, broadcastTxChan,
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)
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if err != nil {
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t.Fatalf("unable to create test channels: %v", err)
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}
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defer cleanUp()
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chanID := lnwire.NewChanIDFromOutPoint(responderChan.ChannelPoint())
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// We send a shutdown request to Alice. She will now be the responding
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// node in this shutdown procedure. We first expect Alice to answer
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// this shutdown request with a Shutdown message.
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responder.chanCloseMsgs <- &closeMsg{
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cid: chanID,
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msg: lnwire.NewShutdown(chanID,
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dummyDeliveryScript),
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}
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var msg lnwire.Message
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select {
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case outMsg := <-responder.outgoingQueue:
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msg = outMsg.msg
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case <-time.After(time.Second * 5):
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t.Fatalf("did not receive shutdown message")
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}
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shutdownMsg, ok := msg.(*lnwire.Shutdown)
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if !ok {
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t.Fatalf("expected Shutdown message, got %T", msg)
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}
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respDeliveryScript := shutdownMsg.Address
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// Alice will thereafter send a ClosingSigned message, indicating her
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// proposed closing transaction fee.
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select {
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case outMsg := <-responder.outgoingQueue:
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msg = outMsg.msg
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case <-time.After(time.Second * 5):
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t.Fatalf("did not receive closing signed message")
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}
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responderClosingSigned, ok := msg.(*lnwire.ClosingSigned)
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if !ok {
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t.Fatalf("expected ClosingSigned message, got %T", msg)
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}
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// We don't agree with the fee, and will send back one that's 2.5x.
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preferredRespFee := responderClosingSigned.FeeSatoshis
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increasedFee := btcutil.Amount(float64(preferredRespFee) * 2.5)
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initiatorSig, _, _, err := initiatorChan.CreateCloseProposal(
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increasedFee, dummyDeliveryScript, respDeliveryScript,
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)
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if err != nil {
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t.Fatalf("error creating close proposal: %v", err)
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}
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parsedSig, err := lnwire.NewSigFromRawSignature(initiatorSig)
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if err != nil {
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t.Fatalf("error parsing signature: %v", err)
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}
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closingSigned := lnwire.NewClosingSigned(chanID, increasedFee, parsedSig)
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responder.chanCloseMsgs <- &closeMsg{
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cid: chanID,
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msg: closingSigned,
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}
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// The responder will see the new fee we propose, but with current
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// settings it won't accept it immediately as it differs too much by
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// its ideal fee. We should get a new proposal back, which should have
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// the average fee rate proposed.
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select {
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case outMsg := <-responder.outgoingQueue:
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msg = outMsg.msg
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case <-time.After(time.Second * 5):
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t.Fatalf("did not receive closing signed message")
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}
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responderClosingSigned, ok = msg.(*lnwire.ClosingSigned)
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if !ok {
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t.Fatalf("expected ClosingSigned message, got %T", msg)
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}
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// The fee sent by the responder should be less than the fee we just
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// sent as it should attempt to compromise.
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peerFee := responderClosingSigned.FeeSatoshis
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if peerFee > increasedFee {
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t.Fatalf("new fee should be less than our fee: new=%v, "+
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"prior=%v", peerFee, increasedFee)
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}
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lastFeeResponder := peerFee
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// We try negotiating a 2.1x fee, which should also be rejected.
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increasedFee = btcutil.Amount(float64(preferredRespFee) * 2.1)
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initiatorSig, _, _, err = initiatorChan.CreateCloseProposal(
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increasedFee, dummyDeliveryScript, respDeliveryScript,
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)
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if err != nil {
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t.Fatalf("error creating close proposal: %v", err)
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}
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parsedSig, err = lnwire.NewSigFromRawSignature(initiatorSig)
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if err != nil {
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t.Fatalf("error parsing signature: %v", err)
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}
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closingSigned = lnwire.NewClosingSigned(chanID, increasedFee, parsedSig)
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responder.chanCloseMsgs <- &closeMsg{
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cid: chanID,
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msg: closingSigned,
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}
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// It still won't be accepted, and we should get a new proposal, the
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// average of what we proposed, and what they proposed last time.
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select {
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case outMsg := <-responder.outgoingQueue:
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msg = outMsg.msg
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case <-time.After(time.Second * 5):
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t.Fatalf("did not receive closing signed message")
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}
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responderClosingSigned, ok = msg.(*lnwire.ClosingSigned)
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if !ok {
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t.Fatalf("expected ClosingSigned message, got %T", msg)
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}
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// The peer should inch towards our fee, in order to compromise.
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// Additionally, this fee should be less than the fee we sent prior.
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peerFee = responderClosingSigned.FeeSatoshis
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if peerFee < lastFeeResponder {
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t.Fatalf("new fee should be greater than prior: new=%v, "+
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"prior=%v", peerFee, lastFeeResponder)
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}
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if peerFee > increasedFee {
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t.Fatalf("new fee should be less than our fee: new=%v, "+
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"prior=%v", peerFee, increasedFee)
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}
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// Finally, we'll accept the fee by echoing back the same fee that they
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// sent to us.
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initiatorSig, _, _, err = initiatorChan.CreateCloseProposal(
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peerFee, dummyDeliveryScript, respDeliveryScript,
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)
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if err != nil {
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t.Fatalf("error creating close proposal: %v", err)
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}
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parsedSig, err = lnwire.NewSigFromRawSignature(initiatorSig)
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if err != nil {
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t.Fatalf("error parsing signature: %v", err)
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}
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closingSigned = lnwire.NewClosingSigned(chanID, peerFee, parsedSig)
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responder.chanCloseMsgs <- &closeMsg{
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cid: chanID,
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msg: closingSigned,
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}
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// The responder will now see that we agreed on the fee, and broadcast
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// the closing transaction.
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select {
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case <-broadcastTxChan:
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case <-time.After(time.Second * 5):
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t.Fatalf("closing tx not broadcast")
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}
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// And the responder should be waiting for a confirmation notification.
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notifier.confChannel <- &chainntnfs.TxConfirmation{}
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}
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// TestPeerChannelClosureFeeNegotiationsInitiator tests the shutdown
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// initiator's behavior in the case where we must do several rounds of fee
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// negotiation before we agree on a fee.
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func TestPeerChannelClosureFeeNegotiationsInitiator(t *testing.T) {
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t.Parallel()
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notifier := &mockNotfier{
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confChannel: make(chan *chainntnfs.TxConfirmation),
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}
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broadcastTxChan := make(chan *wire.MsgTx)
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initiator, initiatorChan, responderChan, cleanUp, err := createTestPeer(
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notifier, broadcastTxChan)
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if err != nil {
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t.Fatalf("unable to create test channels: %v", err)
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}
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defer cleanUp()
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// We make the initiator send a shutdown request.
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updateChan := make(chan *lnrpc.CloseStatusUpdate, 1)
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errChan := make(chan error, 1)
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closeCommand := &htlcswitch.ChanClose{
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CloseType: htlcswitch.CloseRegular,
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ChanPoint: initiatorChan.ChannelPoint(),
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Updates: updateChan,
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TargetFeePerKw: 12500,
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Err: errChan,
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}
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initiator.localCloseChanReqs <- closeCommand
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// We should now be getting the shutdown request.
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var msg lnwire.Message
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select {
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case outMsg := <-initiator.outgoingQueue:
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msg = outMsg.msg
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case <-time.After(time.Second * 5):
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t.Fatalf("did not receive shutdown request")
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}
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shutdownMsg, ok := msg.(*lnwire.Shutdown)
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if !ok {
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t.Fatalf("expected Shutdown message, got %T", msg)
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}
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initiatorDeliveryScript := shutdownMsg.Address
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// We'll answer the shutdown message with our own Shutdown, and then a
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// ClosingSigned message.
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chanID := lnwire.NewChanIDFromOutPoint(initiatorChan.ChannelPoint())
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respShutdown := lnwire.NewShutdown(chanID, dummyDeliveryScript)
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initiator.chanCloseMsgs <- &closeMsg{
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cid: chanID,
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msg: respShutdown,
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}
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estimator := lnwallet.NewStaticFeeEstimator(12500, 0)
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initiatorIdealFeeRate, err := estimator.EstimateFeePerKW(1)
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if err != nil {
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t.Fatalf("unable to query fee estimator: %v", err)
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}
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initiatorIdealFee := responderChan.CalcFee(initiatorIdealFeeRate)
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increasedFee := btcutil.Amount(float64(initiatorIdealFee) * 2.5)
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closeSig, _, _, err := responderChan.CreateCloseProposal(
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increasedFee, dummyDeliveryScript, initiatorDeliveryScript,
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)
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if err != nil {
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t.Fatalf("unable to create close proposal: %v", err)
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}
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parsedSig, err := lnwire.NewSigFromRawSignature(closeSig)
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if err != nil {
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t.Fatalf("unable to parse signature: %v", err)
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}
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closingSigned := lnwire.NewClosingSigned(
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shutdownMsg.ChannelID, increasedFee, parsedSig,
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)
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initiator.chanCloseMsgs <- &closeMsg{
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cid: chanID,
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msg: closingSigned,
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}
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// We should get two closing signed messages, the first will be the
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// ideal fee sent by the initiator in response to our shutdown request.
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select {
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case outMsg := <-initiator.outgoingQueue:
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msg = outMsg.msg
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case <-time.After(time.Second * 5):
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t.Fatalf("did not receive closing signed")
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}
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closingSignedMsg, ok := msg.(*lnwire.ClosingSigned)
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if !ok {
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t.Fatalf("expected ClosingSigned message, got %T", msg)
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}
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if closingSignedMsg.FeeSatoshis != initiatorIdealFee {
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t.Fatalf("expected ClosingSigned fee to be %v, instead got %v",
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initiatorIdealFee, closingSignedMsg.FeeSatoshis)
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}
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lastFeeSent := closingSignedMsg.FeeSatoshis
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// The second message should be the compromise fee sent in response to
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// them receiving our fee proposal.
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select {
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case outMsg := <-initiator.outgoingQueue:
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msg = outMsg.msg
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case <-time.After(time.Second * 5):
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t.Fatalf("did not receive closing signed")
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}
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closingSignedMsg, ok = msg.(*lnwire.ClosingSigned)
|
|
if !ok {
|
|
t.Fatalf("expected ClosingSigned message, got %T", msg)
|
|
}
|
|
|
|
// The peer should inch towards our fee, in order to compromise.
|
|
// Additionally, this fee should be less than the fee we sent prior.
|
|
peerFee := closingSignedMsg.FeeSatoshis
|
|
if peerFee < lastFeeSent {
|
|
t.Fatalf("new fee should be greater than prior: new=%v, "+
|
|
"prior=%v", peerFee, lastFeeSent)
|
|
}
|
|
if peerFee > increasedFee {
|
|
t.Fatalf("new fee should be less than our fee: new=%v, "+
|
|
"prior=%v", peerFee, increasedFee)
|
|
}
|
|
lastFeeSent = closingSignedMsg.FeeSatoshis
|
|
|
|
// We try negotiating a 2.1x fee, which should also be rejected.
|
|
increasedFee = btcutil.Amount(float64(initiatorIdealFee) * 2.1)
|
|
responderSig, _, _, err := responderChan.CreateCloseProposal(
|
|
increasedFee, dummyDeliveryScript, initiatorDeliveryScript,
|
|
)
|
|
if err != nil {
|
|
t.Fatalf("error creating close proposal: %v", err)
|
|
}
|
|
|
|
parsedSig, err = lnwire.NewSigFromRawSignature(responderSig)
|
|
if err != nil {
|
|
t.Fatalf("error parsing signature: %v", err)
|
|
}
|
|
|
|
closingSigned = lnwire.NewClosingSigned(chanID, increasedFee, parsedSig)
|
|
initiator.chanCloseMsgs <- &closeMsg{
|
|
cid: chanID,
|
|
msg: closingSigned,
|
|
}
|
|
|
|
// It still won't be accepted, and we should get a new proposal, the
|
|
// average of what we proposed, and what they proposed last time.
|
|
select {
|
|
case outMsg := <-initiator.outgoingQueue:
|
|
msg = outMsg.msg
|
|
case <-time.After(time.Second * 5):
|
|
t.Fatalf("did not receive closing signed")
|
|
}
|
|
|
|
initiatorClosingSigned, ok := msg.(*lnwire.ClosingSigned)
|
|
if !ok {
|
|
t.Fatalf("expected ClosingSigned message, got %T", msg)
|
|
}
|
|
|
|
// Once again, the fee sent by the initiator should be greater than the
|
|
// last fee they sent, but less than the last fee we sent.
|
|
peerFee = initiatorClosingSigned.FeeSatoshis
|
|
if peerFee < lastFeeSent {
|
|
t.Fatalf("new fee should be greater than prior: new=%v, "+
|
|
"prior=%v", peerFee, lastFeeSent)
|
|
}
|
|
if peerFee > increasedFee {
|
|
t.Fatalf("new fee should be less than our fee: new=%v, "+
|
|
"prior=%v", peerFee, increasedFee)
|
|
}
|
|
|
|
// At this point, we'll accept their fee by sending back a CloseSigned
|
|
// message with an identical fee.
|
|
responderSig, _, _, err = responderChan.CreateCloseProposal(
|
|
peerFee, dummyDeliveryScript, initiatorDeliveryScript,
|
|
)
|
|
if err != nil {
|
|
t.Fatalf("error creating close proposal: %v", err)
|
|
}
|
|
|
|
parsedSig, err = lnwire.NewSigFromRawSignature(responderSig)
|
|
if err != nil {
|
|
t.Fatalf("error parsing signature: %v", err)
|
|
}
|
|
closingSigned = lnwire.NewClosingSigned(chanID, peerFee, parsedSig)
|
|
initiator.chanCloseMsgs <- &closeMsg{
|
|
cid: chanID,
|
|
msg: closingSigned,
|
|
}
|
|
|
|
// Wait for closing tx to be broadcasted.
|
|
select {
|
|
case <-broadcastTxChan:
|
|
case <-time.After(time.Second * 5):
|
|
t.Fatalf("closing tx not broadcast")
|
|
}
|
|
}
|