Merge pull request #4148 from carlaKC/lnwallet-evaluatehtlccoverage
lnwallet/test: add coverage for evaluateHtlcView
This commit is contained in:
Olaoluwa Osuntokun
GitHub
commit
3769f74795
@ -2494,57 +2494,6 @@ func (lc *LightningChannel) evaluateHTLCView(view *htlcView, ourBalance,
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skipUs := make(map[uint64]struct{})
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skipThem := make(map[uint64]struct{})
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// fetchParentEntry is a helper method that will fetch the parent of
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// entry from the corresponding update log.
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fetchParentEntry := func(entry *PaymentDescriptor,
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remoteLog bool) (*PaymentDescriptor, error) {
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var (
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updateLog *updateLog
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logName string
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)
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if remoteLog {
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updateLog = lc.remoteUpdateLog
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logName = "remote"
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} else {
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updateLog = lc.localUpdateLog
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logName = "local"
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}
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addEntry := updateLog.lookupHtlc(entry.ParentIndex)
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switch {
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// We check if the parent entry is not found at this point.
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// This could happen for old versions of lnd, and we return an
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// error to gracefully shut down the state machine if such an
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// entry is still in the logs.
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case addEntry == nil:
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return nil, fmt.Errorf("unable to find parent entry "+
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"%d in %v update log: %v\nUpdatelog: %v",
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entry.ParentIndex, logName,
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newLogClosure(func() string {
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return spew.Sdump(entry)
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}), newLogClosure(func() string {
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return spew.Sdump(updateLog)
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}),
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)
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// The parent add height should never be zero at this point. If
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// that's the case we probably forgot to send a new commitment.
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case remoteChain && addEntry.addCommitHeightRemote == 0:
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return nil, fmt.Errorf("parent entry %d for update %d "+
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"had zero remote add height", entry.ParentIndex,
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entry.LogIndex)
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case !remoteChain && addEntry.addCommitHeightLocal == 0:
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return nil, fmt.Errorf("parent entry %d for update %d "+
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"had zero local add height", entry.ParentIndex,
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entry.LogIndex)
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}
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return addEntry, nil
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}
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// First we run through non-add entries in both logs, populating the
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// skip sets and mutating the current chain state (crediting balances,
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// etc) to reflect the settle/timeout entry encountered.
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@ -2571,7 +2520,7 @@ func (lc *LightningChannel) evaluateHTLCView(view *htlcView, ourBalance,
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lc.channelState.TotalMSatReceived += entry.Amount
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}
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addEntry, err := fetchParentEntry(entry, true)
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addEntry, err := lc.fetchParent(entry, remoteChain, true)
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if err != nil {
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return nil, err
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}
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@ -2604,7 +2553,7 @@ func (lc *LightningChannel) evaluateHTLCView(view *htlcView, ourBalance,
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lc.channelState.TotalMSatSent += entry.Amount
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}
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addEntry, err := fetchParentEntry(entry, false)
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addEntry, err := lc.fetchParent(entry, remoteChain, false)
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if err != nil {
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return nil, err
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}
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@ -2641,6 +2590,57 @@ func (lc *LightningChannel) evaluateHTLCView(view *htlcView, ourBalance,
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return newView, nil
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}
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// getFetchParent is a helper that looks up update log parent entries in the
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// appropriate log.
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func (lc *LightningChannel) fetchParent(entry *PaymentDescriptor,
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remoteChain, remoteLog bool) (*PaymentDescriptor, error) {
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var (
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updateLog *updateLog
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logName string
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)
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if remoteLog {
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updateLog = lc.remoteUpdateLog
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logName = "remote"
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} else {
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updateLog = lc.localUpdateLog
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logName = "local"
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}
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addEntry := updateLog.lookupHtlc(entry.ParentIndex)
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switch {
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// We check if the parent entry is not found at this point.
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// This could happen for old versions of lnd, and we return an
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// error to gracefully shut down the state machine if such an
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// entry is still in the logs.
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case addEntry == nil:
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return nil, fmt.Errorf("unable to find parent entry "+
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"%d in %v update log: %v\nUpdatelog: %v",
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entry.ParentIndex, logName,
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newLogClosure(func() string {
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return spew.Sdump(entry)
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}), newLogClosure(func() string {
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return spew.Sdump(updateLog)
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}),
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)
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// The parent add height should never be zero at this point. If
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// that's the case we probably forgot to send a new commitment.
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case remoteChain && addEntry.addCommitHeightRemote == 0:
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return nil, fmt.Errorf("parent entry %d for update %d "+
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"had zero remote add height", entry.ParentIndex,
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entry.LogIndex)
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case !remoteChain && addEntry.addCommitHeightLocal == 0:
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return nil, fmt.Errorf("parent entry %d for update %d "+
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"had zero local add height", entry.ParentIndex,
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entry.LogIndex)
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}
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return addEntry, nil
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}
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// processAddEntry evaluates the effect of an add entry within the HTLC log.
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// If the HTLC hasn't yet been committed in either chain, then the height it
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// was committed is updated. Keeping track of this inclusion height allows us to
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@ -5,7 +5,6 @@ import (
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"container/list"
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"crypto/sha256"
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"fmt"
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"reflect"
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"runtime"
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"testing"
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@ -7676,3 +7675,1239 @@ func TestChannelFeeRateFloor(t *testing.T) {
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err)
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}
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}
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// TestFetchParent tests lookup of an entry's parent in the appropriate log.
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func TestFetchParent(t *testing.T) {
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tests := []struct {
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name string
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remoteChain bool
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remoteLog bool
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localEntries []*PaymentDescriptor
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remoteEntries []*PaymentDescriptor
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// parentIndex is the parent index of the entry that we will
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// lookup with fetch parent.
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parentIndex uint64
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// expectErr indicates that we expect fetch parent to fail.
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expectErr bool
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// expectedIndex is the htlc index that we expect the parent
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// to have.
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expectedIndex uint64
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}{
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{
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name: "not found in remote log",
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localEntries: nil,
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remoteEntries: nil,
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remoteChain: true,
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remoteLog: true,
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parentIndex: 0,
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expectErr: true,
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},
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{
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name: "not found in local log",
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localEntries: nil,
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remoteEntries: nil,
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remoteChain: false,
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remoteLog: false,
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parentIndex: 0,
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expectErr: true,
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},
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{
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name: "remote log + chain, remote add height 0",
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localEntries: nil,
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remoteEntries: []*PaymentDescriptor{
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// This entry will be added at log index =0.
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{
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HtlcIndex: 1,
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addCommitHeightLocal: 100,
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addCommitHeightRemote: 100,
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},
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// This entry will be added at log index =1, it
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// is the parent entry we are looking for.
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{
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HtlcIndex: 2,
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addCommitHeightLocal: 100,
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addCommitHeightRemote: 0,
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},
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},
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remoteChain: true,
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remoteLog: true,
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parentIndex: 1,
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expectErr: true,
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},
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{
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name: "remote log, local chain, local add height 0",
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remoteEntries: []*PaymentDescriptor{
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// This entry will be added at log index =0.
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{
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HtlcIndex: 1,
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addCommitHeightLocal: 100,
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addCommitHeightRemote: 100,
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},
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// This entry will be added at log index =1, it
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// is the parent entry we are looking for.
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{
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HtlcIndex: 2,
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addCommitHeightLocal: 0,
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addCommitHeightRemote: 100,
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},
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},
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localEntries: nil,
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remoteChain: false,
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remoteLog: true,
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parentIndex: 1,
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expectErr: true,
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},
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{
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name: "local log + chain, local add height 0",
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localEntries: []*PaymentDescriptor{
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// This entry will be added at log index =0.
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{
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HtlcIndex: 1,
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addCommitHeightLocal: 100,
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addCommitHeightRemote: 100,
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},
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// This entry will be added at log index =1, it
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// is the parent entry we are looking for.
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{
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HtlcIndex: 2,
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addCommitHeightLocal: 0,
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addCommitHeightRemote: 100,
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},
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},
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remoteEntries: nil,
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remoteChain: false,
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remoteLog: false,
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parentIndex: 1,
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expectErr: true,
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},
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{
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name: "local log + remote chain, remote add height 0",
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localEntries: []*PaymentDescriptor{
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// This entry will be added at log index =0.
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{
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HtlcIndex: 1,
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addCommitHeightLocal: 100,
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addCommitHeightRemote: 100,
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},
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// This entry will be added at log index =1, it
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// is the parent entry we are looking for.
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{
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HtlcIndex: 2,
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addCommitHeightLocal: 100,
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addCommitHeightRemote: 0,
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},
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},
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remoteEntries: nil,
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remoteChain: true,
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remoteLog: false,
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parentIndex: 1,
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expectErr: true,
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},
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{
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name: "remote log found",
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localEntries: nil,
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remoteEntries: []*PaymentDescriptor{
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// This entry will be added at log index =0.
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{
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HtlcIndex: 1,
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addCommitHeightLocal: 100,
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addCommitHeightRemote: 0,
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},
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// This entry will be added at log index =1, it
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// is the parent entry we are looking for.
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{
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HtlcIndex: 2,
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addCommitHeightLocal: 100,
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addCommitHeightRemote: 100,
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},
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},
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remoteChain: true,
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remoteLog: true,
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parentIndex: 1,
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expectErr: false,
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expectedIndex: 2,
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},
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{
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name: "local log found",
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localEntries: []*PaymentDescriptor{
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// This entry will be added at log index =0.
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{
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HtlcIndex: 1,
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addCommitHeightLocal: 0,
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addCommitHeightRemote: 100,
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},
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// This entry will be added at log index =1, it
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// is the parent entry we are looking for.
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{
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HtlcIndex: 2,
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addCommitHeightLocal: 100,
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addCommitHeightRemote: 100,
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},
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},
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remoteEntries: nil,
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remoteChain: false,
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remoteLog: false,
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parentIndex: 1,
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expectErr: false,
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expectedIndex: 2,
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},
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}
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for _, test := range tests {
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test := test
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t.Run(test.name, func(t *testing.T) {
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// Create a lightning channel with newly initialized
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// local and remote logs.
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lc := LightningChannel{
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localUpdateLog: newUpdateLog(0, 0),
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remoteUpdateLog: newUpdateLog(0, 0),
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}
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// Add the local and remote entries to update logs.
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for _, entry := range test.localEntries {
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lc.localUpdateLog.appendHtlc(entry)
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}
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for _, entry := range test.remoteEntries {
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lc.remoteUpdateLog.appendHtlc(entry)
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}
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parent, err := lc.fetchParent(
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&PaymentDescriptor{
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ParentIndex: test.parentIndex,
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},
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test.remoteChain,
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test.remoteLog,
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)
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gotErr := err != nil
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if test.expectErr != gotErr {
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t.Fatalf("expected error: %v, got: %v, "+
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"error:%v", test.expectErr, gotErr, err)
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}
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// If our lookup failed, we do not need to check parent
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// index.
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if err != nil {
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return
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}
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if parent.HtlcIndex != test.expectedIndex {
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t.Fatalf("expected parent index: %v, got: %v",
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test.parentIndex, parent.HtlcIndex)
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}
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})
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}
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}
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// TestEvaluateView tests the creation of a htlc view and the opt in mutation of
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// send and receive balances. This test does not check htlc mutation on a htlc
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// level.
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func TestEvaluateView(t *testing.T) {
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const (
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// addHeight is a non-zero height that is used for htlc adds.
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addHeight = 200
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// nextHeight is a constant that we use for the next height in
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// all unit tests.
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nextHeight = 400
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// feePerKw is the fee we start all of our unit tests with.
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feePerKw = 1
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// htlcAddAmount is the amount for htlc adds in tests.
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htlcAddAmount = 15
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// ourFeeUpdateAmt is an amount that we update fees to
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// expressed in msat.
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ourFeeUpdateAmt = 20000
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// ourFeeUpdatePerSat is the fee rate *in satoshis* that we
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// expect if we update to ourFeeUpdateAmt.
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ourFeeUpdatePerSat = chainfee.SatPerKWeight(20)
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// theirFeeUpdateAmt iis an amount that they update fees to
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// expressed in msat.
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theirFeeUpdateAmt = 10000
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// theirFeeUpdatePerSat is the fee rate *in satoshis* that we
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// expect if we update to ourFeeUpdateAmt.
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theirFeeUpdatePerSat = chainfee.SatPerKWeight(10)
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)
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tests := []struct {
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name string
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ourHtlcs []*PaymentDescriptor
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theirHtlcs []*PaymentDescriptor
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remoteChain bool
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mutateState bool
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// ourExpectedHtlcs is the set of our htlcs that we expect in
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// the htlc view once it has been evaluated. We just store
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// htlc index -> bool for brevity, because we only check the
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// presence of the htlc in the returned set.
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ourExpectedHtlcs map[uint64]bool
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// theirExpectedHtlcs is the set of their htlcs that we expect
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// in the htlc view once it has been evaluated. We just store
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// htlc index -> bool for brevity, because we only check the
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// presence of the htlc in the returned set.
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theirExpectedHtlcs map[uint64]bool
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// expectedFee is the fee we expect to be set after evaluating
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// the htlc view.
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expectedFee chainfee.SatPerKWeight
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// expectReceived is the amount we expect the channel to have
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// tracked as our receive total.
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expectReceived lnwire.MilliSatoshi
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// expectSent is the amount we expect the channel to have
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// tracked as our send total.
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expectSent lnwire.MilliSatoshi
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}{
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{
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name: "our fee update is applied",
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remoteChain: false,
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mutateState: false,
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ourHtlcs: []*PaymentDescriptor{
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{
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Amount: ourFeeUpdateAmt,
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EntryType: FeeUpdate,
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},
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},
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theirHtlcs: nil,
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expectedFee: ourFeeUpdatePerSat,
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ourExpectedHtlcs: nil,
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theirExpectedHtlcs: nil,
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expectReceived: 0,
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expectSent: 0,
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},
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{
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name: "their fee update is applied",
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remoteChain: false,
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mutateState: false,
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ourHtlcs: []*PaymentDescriptor{},
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theirHtlcs: []*PaymentDescriptor{
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{
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Amount: theirFeeUpdateAmt,
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EntryType: FeeUpdate,
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},
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},
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expectedFee: theirFeeUpdatePerSat,
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ourExpectedHtlcs: nil,
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theirExpectedHtlcs: nil,
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expectReceived: 0,
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expectSent: 0,
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},
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{
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// We expect unresolved htlcs to to remain in the view.
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name: "htlcs adds without settles",
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remoteChain: false,
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mutateState: false,
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ourHtlcs: []*PaymentDescriptor{
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{
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HtlcIndex: 0,
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Amount: htlcAddAmount,
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EntryType: Add,
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},
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},
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theirHtlcs: []*PaymentDescriptor{
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{
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HtlcIndex: 0,
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Amount: htlcAddAmount,
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EntryType: Add,
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},
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{
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HtlcIndex: 1,
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Amount: htlcAddAmount,
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EntryType: Add,
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},
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},
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expectedFee: feePerKw,
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ourExpectedHtlcs: map[uint64]bool{
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0: true,
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},
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theirExpectedHtlcs: map[uint64]bool{
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0: true,
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1: true,
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},
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expectReceived: 0,
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expectSent: 0,
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},
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{
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name: "our htlc settled, state mutated",
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remoteChain: false,
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mutateState: true,
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ourHtlcs: []*PaymentDescriptor{
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{
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HtlcIndex: 0,
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Amount: htlcAddAmount,
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EntryType: Add,
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addCommitHeightLocal: addHeight,
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},
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},
|
||||
theirHtlcs: []*PaymentDescriptor{
|
||||
{
|
||||
HtlcIndex: 0,
|
||||
Amount: htlcAddAmount,
|
||||
EntryType: Add,
|
||||
},
|
||||
{
|
||||
HtlcIndex: 1,
|
||||
Amount: htlcAddAmount,
|
||||
EntryType: Settle,
|
||||
// Map their htlc settle update to our
|
||||
// htlc add (0).
|
||||
ParentIndex: 0,
|
||||
},
|
||||
},
|
||||
expectedFee: feePerKw,
|
||||
ourExpectedHtlcs: nil,
|
||||
theirExpectedHtlcs: map[uint64]bool{
|
||||
0: true,
|
||||
},
|
||||
expectReceived: 0,
|
||||
expectSent: htlcAddAmount,
|
||||
},
|
||||
{
|
||||
name: "our htlc settled, state not mutated",
|
||||
remoteChain: false,
|
||||
mutateState: false,
|
||||
ourHtlcs: []*PaymentDescriptor{
|
||||
{
|
||||
HtlcIndex: 0,
|
||||
Amount: htlcAddAmount,
|
||||
EntryType: Add,
|
||||
addCommitHeightLocal: addHeight,
|
||||
},
|
||||
},
|
||||
theirHtlcs: []*PaymentDescriptor{
|
||||
{
|
||||
HtlcIndex: 0,
|
||||
Amount: htlcAddAmount,
|
||||
EntryType: Add,
|
||||
},
|
||||
{
|
||||
HtlcIndex: 1,
|
||||
Amount: htlcAddAmount,
|
||||
EntryType: Settle,
|
||||
// Map their htlc settle update to our
|
||||
// htlc add (0).
|
||||
ParentIndex: 0,
|
||||
},
|
||||
},
|
||||
expectedFee: feePerKw,
|
||||
ourExpectedHtlcs: nil,
|
||||
theirExpectedHtlcs: map[uint64]bool{
|
||||
0: true,
|
||||
},
|
||||
expectReceived: 0,
|
||||
expectSent: 0,
|
||||
},
|
||||
{
|
||||
name: "their htlc settled, state mutated",
|
||||
remoteChain: false,
|
||||
mutateState: true,
|
||||
ourHtlcs: []*PaymentDescriptor{
|
||||
{
|
||||
HtlcIndex: 0,
|
||||
Amount: htlcAddAmount,
|
||||
EntryType: Add,
|
||||
},
|
||||
{
|
||||
HtlcIndex: 1,
|
||||
Amount: htlcAddAmount,
|
||||
EntryType: Settle,
|
||||
// Map our htlc settle update to their
|
||||
// htlc add (1).
|
||||
ParentIndex: 1,
|
||||
},
|
||||
},
|
||||
theirHtlcs: []*PaymentDescriptor{
|
||||
{
|
||||
HtlcIndex: 0,
|
||||
Amount: htlcAddAmount,
|
||||
EntryType: Add,
|
||||
addCommitHeightLocal: addHeight,
|
||||
},
|
||||
{
|
||||
HtlcIndex: 1,
|
||||
Amount: htlcAddAmount,
|
||||
EntryType: Add,
|
||||
addCommitHeightLocal: addHeight,
|
||||
},
|
||||
},
|
||||
expectedFee: feePerKw,
|
||||
ourExpectedHtlcs: map[uint64]bool{
|
||||
0: true,
|
||||
},
|
||||
theirExpectedHtlcs: map[uint64]bool{
|
||||
0: true,
|
||||
},
|
||||
expectReceived: htlcAddAmount,
|
||||
expectSent: 0,
|
||||
},
|
||||
{
|
||||
name: "their htlc settled, state not mutated",
|
||||
remoteChain: false,
|
||||
mutateState: false,
|
||||
ourHtlcs: []*PaymentDescriptor{
|
||||
{
|
||||
HtlcIndex: 0,
|
||||
Amount: htlcAddAmount,
|
||||
EntryType: Add,
|
||||
},
|
||||
{
|
||||
HtlcIndex: 1,
|
||||
Amount: htlcAddAmount,
|
||||
EntryType: Settle,
|
||||
// Map our htlc settle update to their
|
||||
// htlc add (0).
|
||||
ParentIndex: 0,
|
||||
},
|
||||
},
|
||||
theirHtlcs: []*PaymentDescriptor{
|
||||
{
|
||||
HtlcIndex: 0,
|
||||
Amount: htlcAddAmount,
|
||||
EntryType: Add,
|
||||
addCommitHeightLocal: addHeight,
|
||||
},
|
||||
},
|
||||
expectedFee: feePerKw,
|
||||
ourExpectedHtlcs: map[uint64]bool{
|
||||
0: true,
|
||||
},
|
||||
theirExpectedHtlcs: nil,
|
||||
expectReceived: 0,
|
||||
expectSent: 0,
|
||||
},
|
||||
}
|
||||
|
||||
for _, test := range tests {
|
||||
test := test
|
||||
|
||||
t.Run(test.name, func(t *testing.T) {
|
||||
lc := LightningChannel{
|
||||
channelState: &channeldb.OpenChannel{
|
||||
TotalMSatSent: 0,
|
||||
TotalMSatReceived: 0,
|
||||
},
|
||||
|
||||
// Create update logs for local and remote.
|
||||
localUpdateLog: newUpdateLog(0, 0),
|
||||
remoteUpdateLog: newUpdateLog(0, 0),
|
||||
}
|
||||
|
||||
for _, htlc := range test.ourHtlcs {
|
||||
if htlc.EntryType == Add {
|
||||
lc.localUpdateLog.appendHtlc(htlc)
|
||||
} else {
|
||||
lc.localUpdateLog.appendUpdate(htlc)
|
||||
}
|
||||
}
|
||||
|
||||
for _, htlc := range test.theirHtlcs {
|
||||
if htlc.EntryType == Add {
|
||||
lc.remoteUpdateLog.appendHtlc(htlc)
|
||||
} else {
|
||||
lc.remoteUpdateLog.appendUpdate(htlc)
|
||||
}
|
||||
}
|
||||
|
||||
view := &htlcView{
|
||||
ourUpdates: test.ourHtlcs,
|
||||
theirUpdates: test.theirHtlcs,
|
||||
feePerKw: feePerKw,
|
||||
}
|
||||
|
||||
var (
|
||||
// Create vars to store balance changes. We do
|
||||
// not check these values in this test because
|
||||
// balance modification happens on the htlc
|
||||
// processing level.
|
||||
ourBalance lnwire.MilliSatoshi
|
||||
theirBalance lnwire.MilliSatoshi
|
||||
)
|
||||
|
||||
// Evaluate the htlc view, mutate as test expects.
|
||||
result, err := lc.evaluateHTLCView(
|
||||
view, &ourBalance, &theirBalance, nextHeight,
|
||||
test.remoteChain, test.mutateState,
|
||||
)
|
||||
if err != nil {
|
||||
t.Fatalf("unexpected error: %v", err)
|
||||
}
|
||||
|
||||
if result.feePerKw != test.expectedFee {
|
||||
t.Fatalf("expected fee: %v, got: %v",
|
||||
test.expectedFee, result.feePerKw)
|
||||
}
|
||||
|
||||
checkExpectedHtlcs(
|
||||
t, result.ourUpdates, test.ourExpectedHtlcs,
|
||||
)
|
||||
|
||||
checkExpectedHtlcs(
|
||||
t, result.theirUpdates, test.theirExpectedHtlcs,
|
||||
)
|
||||
|
||||
if lc.channelState.TotalMSatSent != test.expectSent {
|
||||
t.Fatalf("expected sent: %v, got: %v",
|
||||
test.expectSent,
|
||||
lc.channelState.TotalMSatSent)
|
||||
}
|
||||
|
||||
if lc.channelState.TotalMSatReceived !=
|
||||
test.expectReceived {
|
||||
|
||||
t.Fatalf("expected received: %v, got: %v",
|
||||
test.expectReceived,
|
||||
lc.channelState.TotalMSatReceived)
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
// checkExpectedHtlcs checks that a set of htlcs that we have contains all the
|
||||
// htlcs we expect.
|
||||
func checkExpectedHtlcs(t *testing.T, actual []*PaymentDescriptor,
|
||||
expected map[uint64]bool) {
|
||||
|
||||
if len(expected) != len(actual) {
|
||||
t.Fatalf("expected: %v htlcs, got: %v",
|
||||
len(expected), len(actual))
|
||||
}
|
||||
|
||||
for _, htlc := range actual {
|
||||
_, ok := expected[htlc.HtlcIndex]
|
||||
if !ok {
|
||||
t.Fatalf("htlc with index: %v not "+
|
||||
"expected in set", htlc.HtlcIndex)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// heights represents the heights on a payment descriptor.
|
||||
type heights struct {
|
||||
localAdd uint64
|
||||
localRemove uint64
|
||||
remoteAdd uint64
|
||||
remoteRemove uint64
|
||||
}
|
||||
|
||||
// TestProcessFeeUpdate tests the applying of fee updates and mutation of
|
||||
// local and remote add and remove heights on update messages.
|
||||
func TestProcessFeeUpdate(t *testing.T) {
|
||||
const (
|
||||
// height is a non-zero height that can be used for htlcs
|
||||
// heights.
|
||||
height = 200
|
||||
|
||||
// nextHeight is a constant that we use for the next height in
|
||||
// all unit tests.
|
||||
nextHeight = 400
|
||||
|
||||
// feePerKw is the fee we start all of our unit tests with.
|
||||
feePerKw = 1
|
||||
|
||||
// ourFeeUpdateAmt is an amount that we update fees to expressed
|
||||
// in msat.
|
||||
ourFeeUpdateAmt = 20000
|
||||
|
||||
// ourFeeUpdatePerSat is the fee rate *in satoshis* that we
|
||||
// expect if we update to ourFeeUpdateAmt.
|
||||
ourFeeUpdatePerSat = chainfee.SatPerKWeight(20)
|
||||
)
|
||||
|
||||
tests := []struct {
|
||||
name string
|
||||
startHeights heights
|
||||
expectedHeights heights
|
||||
remoteChain bool
|
||||
mutate bool
|
||||
expectedFee chainfee.SatPerKWeight
|
||||
}{
|
||||
{
|
||||
// Looking at local chain, local add is non-zero so
|
||||
// the update has been applied already; no fee change.
|
||||
name: "non-zero local height, fee unchanged",
|
||||
startHeights: heights{
|
||||
localAdd: height,
|
||||
localRemove: 0,
|
||||
remoteAdd: 0,
|
||||
remoteRemove: height,
|
||||
},
|
||||
expectedHeights: heights{
|
||||
localAdd: height,
|
||||
localRemove: 0,
|
||||
remoteAdd: 0,
|
||||
remoteRemove: height,
|
||||
},
|
||||
remoteChain: false,
|
||||
mutate: false,
|
||||
expectedFee: feePerKw,
|
||||
},
|
||||
{
|
||||
// Looking at local chain, local add is zero so the
|
||||
// update has not been applied yet; we expect a fee
|
||||
// update.
|
||||
name: "zero local height, fee changed",
|
||||
startHeights: heights{
|
||||
localAdd: 0,
|
||||
localRemove: 0,
|
||||
remoteAdd: height,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
expectedHeights: heights{
|
||||
localAdd: 0,
|
||||
localRemove: 0,
|
||||
remoteAdd: height,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
remoteChain: false,
|
||||
mutate: false,
|
||||
expectedFee: ourFeeUpdatePerSat,
|
||||
},
|
||||
{
|
||||
// Looking at remote chain, the remote add height is
|
||||
// zero, so the update has not been applied so we expect
|
||||
// a fee change.
|
||||
name: "zero remote height, fee changed",
|
||||
startHeights: heights{
|
||||
localAdd: height,
|
||||
localRemove: 0,
|
||||
remoteAdd: 0,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
expectedHeights: heights{
|
||||
localAdd: height,
|
||||
localRemove: 0,
|
||||
remoteAdd: 0,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
remoteChain: true,
|
||||
mutate: false,
|
||||
expectedFee: ourFeeUpdatePerSat,
|
||||
},
|
||||
{
|
||||
// Looking at remote chain, the remote add height is
|
||||
// non-zero, so the update has been applied so we expect
|
||||
// no fee change.
|
||||
name: "non-zero remote height, no fee change",
|
||||
startHeights: heights{
|
||||
localAdd: height,
|
||||
localRemove: 0,
|
||||
remoteAdd: height,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
expectedHeights: heights{
|
||||
localAdd: height,
|
||||
localRemove: 0,
|
||||
remoteAdd: height,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
remoteChain: true,
|
||||
mutate: false,
|
||||
expectedFee: feePerKw,
|
||||
},
|
||||
{
|
||||
// Local add height is non-zero, so the update has
|
||||
// already been applied; we do not expect fee to
|
||||
// change or any mutations to be applied.
|
||||
name: "non-zero local height, mutation not applied",
|
||||
startHeights: heights{
|
||||
localAdd: height,
|
||||
localRemove: 0,
|
||||
remoteAdd: 0,
|
||||
remoteRemove: height,
|
||||
},
|
||||
expectedHeights: heights{
|
||||
localAdd: height,
|
||||
localRemove: 0,
|
||||
remoteAdd: 0,
|
||||
remoteRemove: height,
|
||||
},
|
||||
remoteChain: false,
|
||||
mutate: true,
|
||||
expectedFee: feePerKw,
|
||||
},
|
||||
{
|
||||
// Local add is zero and we are looking at our local
|
||||
// chain, so the update has not been applied yet. We
|
||||
// expect the local add and remote heights to be
|
||||
// mutated.
|
||||
name: "zero height, fee changed, mutation applied",
|
||||
startHeights: heights{
|
||||
localAdd: 0,
|
||||
localRemove: 0,
|
||||
remoteAdd: 0,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
expectedHeights: heights{
|
||||
localAdd: nextHeight,
|
||||
localRemove: nextHeight,
|
||||
remoteAdd: 0,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
remoteChain: false,
|
||||
mutate: true,
|
||||
expectedFee: ourFeeUpdatePerSat,
|
||||
},
|
||||
}
|
||||
|
||||
for _, test := range tests {
|
||||
test := test
|
||||
|
||||
t.Run(test.name, func(t *testing.T) {
|
||||
// Create a fee update with add and remove heights as
|
||||
// set in the test.
|
||||
heights := test.startHeights
|
||||
update := &PaymentDescriptor{
|
||||
Amount: ourFeeUpdateAmt,
|
||||
addCommitHeightRemote: heights.remoteAdd,
|
||||
addCommitHeightLocal: heights.localAdd,
|
||||
removeCommitHeightRemote: heights.remoteRemove,
|
||||
removeCommitHeightLocal: heights.localRemove,
|
||||
EntryType: FeeUpdate,
|
||||
}
|
||||
|
||||
view := &htlcView{
|
||||
feePerKw: chainfee.SatPerKWeight(feePerKw),
|
||||
}
|
||||
processFeeUpdate(
|
||||
update, nextHeight, test.remoteChain,
|
||||
test.mutate, view,
|
||||
)
|
||||
|
||||
if view.feePerKw != test.expectedFee {
|
||||
t.Fatalf("expected fee: %v, got: %v",
|
||||
test.expectedFee, feePerKw)
|
||||
}
|
||||
|
||||
checkHeights(t, update, test.expectedHeights)
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
func checkHeights(t *testing.T, update *PaymentDescriptor, expected heights) {
|
||||
updateHeights := heights{
|
||||
localAdd: update.addCommitHeightLocal,
|
||||
localRemove: update.removeCommitHeightLocal,
|
||||
remoteAdd: update.addCommitHeightRemote,
|
||||
remoteRemove: update.removeCommitHeightRemote,
|
||||
}
|
||||
|
||||
if !reflect.DeepEqual(updateHeights, expected) {
|
||||
t.Fatalf("expected: %v, got: %v", expected, updateHeights)
|
||||
}
|
||||
}
|
||||
|
||||
// TestProcessAddRemoveEntry tests the updating of our and their balances when
|
||||
// we process adds, settles and fails. It also tests the mutating of add and
|
||||
// remove heights.
|
||||
func TestProcessAddRemoveEntry(t *testing.T) {
|
||||
const (
|
||||
// addHeight is a non-zero addHeight that is used for htlc
|
||||
// add heights.
|
||||
addHeight = 100
|
||||
|
||||
// removeHeight is a non-zero removeHeight that is used for
|
||||
// htlc remove heights.
|
||||
removeHeight = 200
|
||||
|
||||
// nextHeight is a constant that we use for the nextHeight in
|
||||
// all unit tests.
|
||||
nextHeight = 400
|
||||
|
||||
// updateAmount is the amount that the update is set to.
|
||||
updateAmount = lnwire.MilliSatoshi(10)
|
||||
|
||||
// startBalance is a balance we start both sides out with
|
||||
// so that balances can be incremented.
|
||||
startBalance = lnwire.MilliSatoshi(100)
|
||||
)
|
||||
|
||||
tests := []struct {
|
||||
name string
|
||||
startHeights heights
|
||||
remoteChain bool
|
||||
isIncoming bool
|
||||
mutateState bool
|
||||
ourExpectedBalance lnwire.MilliSatoshi
|
||||
theirExpectedBalance lnwire.MilliSatoshi
|
||||
expectedHeights heights
|
||||
updateType updateType
|
||||
}{
|
||||
{
|
||||
name: "add, remote chain, already processed",
|
||||
startHeights: heights{
|
||||
localAdd: 0,
|
||||
remoteAdd: addHeight,
|
||||
localRemove: 0,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
remoteChain: true,
|
||||
isIncoming: false,
|
||||
mutateState: false,
|
||||
ourExpectedBalance: startBalance,
|
||||
theirExpectedBalance: startBalance,
|
||||
expectedHeights: heights{
|
||||
localAdd: 0,
|
||||
remoteAdd: addHeight,
|
||||
localRemove: 0,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
updateType: Add,
|
||||
},
|
||||
{
|
||||
name: "add, local chain, already processed",
|
||||
startHeights: heights{
|
||||
localAdd: addHeight,
|
||||
remoteAdd: 0,
|
||||
localRemove: 0,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
remoteChain: false,
|
||||
isIncoming: false,
|
||||
mutateState: false,
|
||||
ourExpectedBalance: startBalance,
|
||||
theirExpectedBalance: startBalance,
|
||||
expectedHeights: heights{
|
||||
localAdd: addHeight,
|
||||
remoteAdd: 0,
|
||||
localRemove: 0,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
updateType: Add,
|
||||
},
|
||||
{
|
||||
name: "incoming add, local chain, not mutated",
|
||||
startHeights: heights{
|
||||
localAdd: 0,
|
||||
remoteAdd: 0,
|
||||
localRemove: 0,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
remoteChain: false,
|
||||
isIncoming: true,
|
||||
mutateState: false,
|
||||
ourExpectedBalance: startBalance,
|
||||
theirExpectedBalance: startBalance - updateAmount,
|
||||
expectedHeights: heights{
|
||||
localAdd: 0,
|
||||
remoteAdd: 0,
|
||||
localRemove: 0,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
updateType: Add,
|
||||
},
|
||||
{
|
||||
name: "incoming add, local chain, mutated",
|
||||
startHeights: heights{
|
||||
localAdd: 0,
|
||||
remoteAdd: 0,
|
||||
localRemove: 0,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
remoteChain: false,
|
||||
isIncoming: true,
|
||||
mutateState: true,
|
||||
ourExpectedBalance: startBalance,
|
||||
theirExpectedBalance: startBalance - updateAmount,
|
||||
expectedHeights: heights{
|
||||
localAdd: nextHeight,
|
||||
remoteAdd: 0,
|
||||
localRemove: 0,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
updateType: Add,
|
||||
},
|
||||
|
||||
{
|
||||
name: "outgoing add, remote chain, not mutated",
|
||||
startHeights: heights{
|
||||
localAdd: 0,
|
||||
remoteAdd: 0,
|
||||
localRemove: 0,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
remoteChain: true,
|
||||
isIncoming: false,
|
||||
mutateState: false,
|
||||
ourExpectedBalance: startBalance - updateAmount,
|
||||
theirExpectedBalance: startBalance,
|
||||
expectedHeights: heights{
|
||||
localAdd: 0,
|
||||
remoteAdd: 0,
|
||||
localRemove: 0,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
updateType: Add,
|
||||
},
|
||||
{
|
||||
name: "outgoing add, remote chain, mutated",
|
||||
startHeights: heights{
|
||||
localAdd: 0,
|
||||
remoteAdd: 0,
|
||||
localRemove: 0,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
remoteChain: true,
|
||||
isIncoming: false,
|
||||
mutateState: true,
|
||||
ourExpectedBalance: startBalance - updateAmount,
|
||||
theirExpectedBalance: startBalance,
|
||||
expectedHeights: heights{
|
||||
localAdd: 0,
|
||||
remoteAdd: nextHeight,
|
||||
localRemove: 0,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
updateType: Add,
|
||||
},
|
||||
{
|
||||
name: "settle, remote chain, already processed",
|
||||
startHeights: heights{
|
||||
localAdd: addHeight,
|
||||
remoteAdd: addHeight,
|
||||
localRemove: 0,
|
||||
remoteRemove: removeHeight,
|
||||
},
|
||||
remoteChain: true,
|
||||
isIncoming: false,
|
||||
mutateState: false,
|
||||
ourExpectedBalance: startBalance,
|
||||
theirExpectedBalance: startBalance,
|
||||
expectedHeights: heights{
|
||||
localAdd: addHeight,
|
||||
remoteAdd: addHeight,
|
||||
localRemove: 0,
|
||||
remoteRemove: removeHeight,
|
||||
},
|
||||
updateType: Settle,
|
||||
},
|
||||
{
|
||||
name: "settle, local chain, already processed",
|
||||
startHeights: heights{
|
||||
localAdd: addHeight,
|
||||
remoteAdd: addHeight,
|
||||
localRemove: removeHeight,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
remoteChain: false,
|
||||
isIncoming: false,
|
||||
mutateState: false,
|
||||
ourExpectedBalance: startBalance,
|
||||
theirExpectedBalance: startBalance,
|
||||
expectedHeights: heights{
|
||||
localAdd: addHeight,
|
||||
remoteAdd: addHeight,
|
||||
localRemove: removeHeight,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
updateType: Settle,
|
||||
},
|
||||
{
|
||||
// Remote chain, and not processed yet. Incoming settle,
|
||||
// so we expect our balance to increase.
|
||||
name: "incoming settle",
|
||||
startHeights: heights{
|
||||
localAdd: addHeight,
|
||||
remoteAdd: addHeight,
|
||||
localRemove: 0,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
remoteChain: true,
|
||||
isIncoming: true,
|
||||
mutateState: false,
|
||||
ourExpectedBalance: startBalance + updateAmount,
|
||||
theirExpectedBalance: startBalance,
|
||||
expectedHeights: heights{
|
||||
localAdd: addHeight,
|
||||
remoteAdd: addHeight,
|
||||
localRemove: 0,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
updateType: Settle,
|
||||
},
|
||||
{
|
||||
// Remote chain, and not processed yet. Incoming settle,
|
||||
// so we expect our balance to increase.
|
||||
name: "outgoing settle",
|
||||
startHeights: heights{
|
||||
localAdd: addHeight,
|
||||
remoteAdd: addHeight,
|
||||
localRemove: 0,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
remoteChain: true,
|
||||
isIncoming: false,
|
||||
mutateState: false,
|
||||
ourExpectedBalance: startBalance,
|
||||
theirExpectedBalance: startBalance + updateAmount,
|
||||
expectedHeights: heights{
|
||||
localAdd: addHeight,
|
||||
remoteAdd: addHeight,
|
||||
localRemove: 0,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
updateType: Settle,
|
||||
},
|
||||
{
|
||||
// Remote chain, and not processed yet. Incoming fail,
|
||||
// so we expect their balance to increase.
|
||||
name: "incoming fail",
|
||||
startHeights: heights{
|
||||
localAdd: addHeight,
|
||||
remoteAdd: addHeight,
|
||||
localRemove: 0,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
remoteChain: true,
|
||||
isIncoming: true,
|
||||
mutateState: false,
|
||||
ourExpectedBalance: startBalance,
|
||||
theirExpectedBalance: startBalance + updateAmount,
|
||||
expectedHeights: heights{
|
||||
localAdd: addHeight,
|
||||
remoteAdd: addHeight,
|
||||
localRemove: 0,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
updateType: Fail,
|
||||
},
|
||||
{
|
||||
// Remote chain, and not processed yet. Outgoing fail,
|
||||
// so we expect our balance to increase.
|
||||
name: "outgoing fail",
|
||||
startHeights: heights{
|
||||
localAdd: addHeight,
|
||||
remoteAdd: addHeight,
|
||||
localRemove: 0,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
remoteChain: true,
|
||||
isIncoming: false,
|
||||
mutateState: false,
|
||||
ourExpectedBalance: startBalance + updateAmount,
|
||||
theirExpectedBalance: startBalance,
|
||||
expectedHeights: heights{
|
||||
localAdd: addHeight,
|
||||
remoteAdd: addHeight,
|
||||
localRemove: 0,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
updateType: Fail,
|
||||
},
|
||||
{
|
||||
// Local chain, and not processed yet. Incoming settle,
|
||||
// so we expect our balance to increase. Mutate is
|
||||
// true, so we expect our remove removeHeight to have
|
||||
// changed.
|
||||
name: "fail, our remove height mutated",
|
||||
startHeights: heights{
|
||||
localAdd: addHeight,
|
||||
remoteAdd: addHeight,
|
||||
localRemove: 0,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
remoteChain: false,
|
||||
isIncoming: true,
|
||||
mutateState: true,
|
||||
ourExpectedBalance: startBalance + updateAmount,
|
||||
theirExpectedBalance: startBalance,
|
||||
expectedHeights: heights{
|
||||
localAdd: addHeight,
|
||||
remoteAdd: addHeight,
|
||||
localRemove: nextHeight,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
updateType: Settle,
|
||||
},
|
||||
{
|
||||
// Remote chain, and not processed yet. Incoming settle,
|
||||
// so we expect our balance to increase. Mutate is
|
||||
// true, so we expect their remove removeHeight to have
|
||||
// changed.
|
||||
name: "fail, their remove height mutated",
|
||||
startHeights: heights{
|
||||
localAdd: addHeight,
|
||||
remoteAdd: addHeight,
|
||||
localRemove: 0,
|
||||
remoteRemove: 0,
|
||||
},
|
||||
remoteChain: true,
|
||||
isIncoming: true,
|
||||
mutateState: true,
|
||||
ourExpectedBalance: startBalance + updateAmount,
|
||||
theirExpectedBalance: startBalance,
|
||||
expectedHeights: heights{
|
||||
localAdd: addHeight,
|
||||
remoteAdd: addHeight,
|
||||
localRemove: 0,
|
||||
remoteRemove: nextHeight,
|
||||
},
|
||||
updateType: Settle,
|
||||
},
|
||||
}
|
||||
|
||||
for _, test := range tests {
|
||||
test := test
|
||||
|
||||
t.Run(test.name, func(t *testing.T) {
|
||||
t.Parallel()
|
||||
|
||||
heights := test.startHeights
|
||||
update := &PaymentDescriptor{
|
||||
Amount: updateAmount,
|
||||
addCommitHeightLocal: heights.localAdd,
|
||||
addCommitHeightRemote: heights.remoteAdd,
|
||||
removeCommitHeightLocal: heights.localRemove,
|
||||
removeCommitHeightRemote: heights.remoteRemove,
|
||||
EntryType: test.updateType,
|
||||
}
|
||||
|
||||
var (
|
||||
// Start both parties off with an initial
|
||||
// balance. Copy by value here so that we do
|
||||
// not mutate the startBalance constant.
|
||||
ourBalance, theirBalance = startBalance,
|
||||
startBalance
|
||||
)
|
||||
|
||||
// Choose the processing function we need based on the
|
||||
// update type. Process remove is used for settles,
|
||||
// fails and malformed htlcs.
|
||||
process := processRemoveEntry
|
||||
if test.updateType == Add {
|
||||
process = processAddEntry
|
||||
}
|
||||
|
||||
process(
|
||||
update, &ourBalance, &theirBalance, nextHeight,
|
||||
test.remoteChain, test.isIncoming,
|
||||
test.mutateState,
|
||||
)
|
||||
|
||||
// Check that balances were updated as expected.
|
||||
if ourBalance != test.ourExpectedBalance {
|
||||
t.Fatalf("expected our balance: %v, got: %v",
|
||||
test.ourExpectedBalance, ourBalance)
|
||||
}
|
||||
|
||||
if theirBalance != test.theirExpectedBalance {
|
||||
t.Fatalf("expected their balance: %v, got: %v",
|
||||
test.theirExpectedBalance, theirBalance)
|
||||
}
|
||||
|
||||
// Check that heights on the update are as expected.
|
||||
checkHeights(t, update, test.expectedHeights)
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user