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https://github.com/lightningnetwork/lnd.git
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watchtower/wtclient: add anchor backup tasks
This commit is contained in:
Conner Fromknecht
@ -95,6 +95,12 @@ func genTaskTest(
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bindErr error,
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chanType channeldb.ChannelType) backupTaskTest {
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// Set the anchor flag in the blob type if the session needs to support
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// anchor channels.
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if chanType.HasAnchors() {
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blobType |= blob.Type(blob.FlagAnchorChannel)
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}
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// Parse the key pairs for all keys used in the test.
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revSK, revPK := btcec.PrivKeyFromBytes(
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btcec.S256(), revPrivBytes,
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@ -195,18 +201,29 @@ func genTaskTest(
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var witnessType input.WitnessType
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switch {
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case chanType.HasAnchors():
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witnessType = input.CommitmentToRemoteConfirmed
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case chanType.IsTweakless():
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witnessType = input.CommitSpendNoDelayTweakless
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default:
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witnessType = input.CommitmentNoDelay
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}
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toRemoteInput = input.NewBaseInput(
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&breachInfo.LocalOutpoint,
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witnessType,
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breachInfo.LocalOutputSignDesc,
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0,
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)
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if chanType.HasAnchors() {
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toRemoteInput = input.NewCsvInput(
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&breachInfo.LocalOutpoint,
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witnessType,
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breachInfo.LocalOutputSignDesc,
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0, 1,
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)
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} else {
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toRemoteInput = input.NewBaseInput(
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&breachInfo.LocalOutpoint,
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witnessType,
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breachInfo.LocalOutputSignDesc,
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0,
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)
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}
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}
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return backupTaskTest{
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@ -260,61 +277,93 @@ func TestBackupTask(t *testing.T) {
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chanTypes := []channeldb.ChannelType{
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channeldb.SingleFunderBit,
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channeldb.SingleFunderTweaklessBit,
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channeldb.AnchorOutputsBit,
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}
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var backupTaskTests []backupTaskTest
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for _, chanType := range chanTypes {
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// Depending on whether the test is for anchor channels or
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// legacy (tweaked and non-tweaked) channels, adjust the
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// expected sweep amount to accommodate. These are different for
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// several reasons:
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// - anchor to-remote outputs require a P2WSH sweep rather
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// than a P2WKH sweep.
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// - the to-local weight estimate fixes an off-by-one.
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// In tests related to the dust threshold, the size difference
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// between the channel types makes it so that the threshold fee
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// rate is slightly lower (since the transactions are heavier).
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var (
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expSweepCommitNoRewardBoth int64 = 299241
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expSweepCommitNoRewardLocal int64 = 199514
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expSweepCommitNoRewardRemote int64 = 99561
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expSweepCommitRewardBoth int64 = 296117
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expSweepCommitRewardLocal int64 = 197390
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expSweepCommitRewardRemote int64 = 98437
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sweepFeeRateNoRewardRemoteDust chainfee.SatPerKWeight = 227500
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sweepFeeRateRewardRemoteDust chainfee.SatPerKWeight = 175000
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)
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if chanType.HasAnchors() {
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expSweepCommitNoRewardBoth = 299236
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expSweepCommitNoRewardLocal = 199513
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expSweepCommitNoRewardRemote = 99557
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expSweepCommitRewardBoth = 296112
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expSweepCommitRewardLocal = 197389
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expSweepCommitRewardRemote = 98433
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sweepFeeRateNoRewardRemoteDust = 225000
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sweepFeeRateRewardRemoteDust = 173750
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}
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backupTaskTests = append(backupTaskTests, []backupTaskTest{
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genTaskTest(
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"commit no-reward, both outputs",
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100, // stateNum
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200000, // toLocalAmt
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100000, // toRemoteAmt
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blobTypeCommitNoReward, // blobType
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1000, // sweepFeeRate
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nil, // rewardScript
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299241, // expSweepAmt
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0, // expRewardAmt
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nil, // bindErr
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100, // stateNum
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200000, // toLocalAmt
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100000, // toRemoteAmt
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blobTypeCommitNoReward, // blobType
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1000, // sweepFeeRate
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nil, // rewardScript
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expSweepCommitNoRewardBoth, // expSweepAmt
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0, // expRewardAmt
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nil, // bindErr
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chanType,
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),
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genTaskTest(
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"commit no-reward, to-local output only",
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1000, // stateNum
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200000, // toLocalAmt
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0, // toRemoteAmt
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blobTypeCommitNoReward, // blobType
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1000, // sweepFeeRate
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nil, // rewardScript
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199514, // expSweepAmt
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0, // expRewardAmt
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nil, // bindErr
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1000, // stateNum
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200000, // toLocalAmt
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0, // toRemoteAmt
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blobTypeCommitNoReward, // blobType
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1000, // sweepFeeRate
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nil, // rewardScript
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expSweepCommitNoRewardLocal, // expSweepAmt
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0, // expRewardAmt
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nil, // bindErr
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chanType,
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),
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genTaskTest(
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"commit no-reward, to-remote output only",
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1, // stateNum
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0, // toLocalAmt
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100000, // toRemoteAmt
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blobTypeCommitNoReward, // blobType
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1000, // sweepFeeRate
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nil, // rewardScript
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99561, // expSweepAmt
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0, // expRewardAmt
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nil, // bindErr
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1, // stateNum
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0, // toLocalAmt
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100000, // toRemoteAmt
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blobTypeCommitNoReward, // blobType
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1000, // sweepFeeRate
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nil, // rewardScript
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expSweepCommitNoRewardRemote, // expSweepAmt
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0, // expRewardAmt
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nil, // bindErr
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chanType,
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),
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genTaskTest(
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"commit no-reward, to-remote output only, creates dust",
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1, // stateNum
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0, // toLocalAmt
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100000, // toRemoteAmt
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blobTypeCommitNoReward, // blobType
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227500, // sweepFeeRate
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nil, // rewardScript
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0, // expSweepAmt
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0, // expRewardAmt
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wtpolicy.ErrCreatesDust, // bindErr
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1, // stateNum
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0, // toLocalAmt
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100000, // toRemoteAmt
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blobTypeCommitNoReward, // blobType
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sweepFeeRateNoRewardRemoteDust, // sweepFeeRate
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nil, // rewardScript
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0, // expSweepAmt
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0, // expRewardAmt
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wtpolicy.ErrCreatesDust, // bindErr
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chanType,
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),
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genTaskTest(
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@ -345,54 +394,54 @@ func TestBackupTask(t *testing.T) {
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),
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genTaskTest(
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"commit reward, both outputs",
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100, // stateNum
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200000, // toLocalAmt
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100000, // toRemoteAmt
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blobTypeCommitReward, // blobType
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1000, // sweepFeeRate
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addrScript, // rewardScript
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296117, // expSweepAmt
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3000, // expRewardAmt
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nil, // bindErr
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100, // stateNum
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200000, // toLocalAmt
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100000, // toRemoteAmt
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blobTypeCommitReward, // blobType
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1000, // sweepFeeRate
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addrScript, // rewardScript
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expSweepCommitRewardBoth, // expSweepAmt
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3000, // expRewardAmt
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nil, // bindErr
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chanType,
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),
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genTaskTest(
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"commit reward, to-local output only",
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1000, // stateNum
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200000, // toLocalAmt
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0, // toRemoteAmt
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blobTypeCommitReward, // blobType
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1000, // sweepFeeRate
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addrScript, // rewardScript
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197390, // expSweepAmt
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2000, // expRewardAmt
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nil, // bindErr
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1000, // stateNum
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200000, // toLocalAmt
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0, // toRemoteAmt
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blobTypeCommitReward, // blobType
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1000, // sweepFeeRate
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addrScript, // rewardScript
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expSweepCommitRewardLocal, // expSweepAmt
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2000, // expRewardAmt
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nil, // bindErr
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chanType,
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),
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genTaskTest(
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"commit reward, to-remote output only",
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1, // stateNum
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0, // toLocalAmt
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100000, // toRemoteAmt
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blobTypeCommitReward, // blobType
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1000, // sweepFeeRate
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addrScript, // rewardScript
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98437, // expSweepAmt
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1000, // expRewardAmt
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nil, // bindErr
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1, // stateNum
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0, // toLocalAmt
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100000, // toRemoteAmt
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blobTypeCommitReward, // blobType
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1000, // sweepFeeRate
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addrScript, // rewardScript
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expSweepCommitRewardRemote, // expSweepAmt
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1000, // expRewardAmt
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nil, // bindErr
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chanType,
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),
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genTaskTest(
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"commit reward, to-remote output only, creates dust",
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1, // stateNum
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0, // toLocalAmt
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100000, // toRemoteAmt
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blobTypeCommitReward, // blobType
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175000, // sweepFeeRate
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addrScript, // rewardScript
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0, // expSweepAmt
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0, // expRewardAmt
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wtpolicy.ErrCreatesDust, // bindErr
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1, // stateNum
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0, // toLocalAmt
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100000, // toRemoteAmt
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blobTypeCommitReward, // blobType
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sweepFeeRateRewardRemoteDust, // sweepFeeRate
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addrScript, // rewardScript
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0, // expSweepAmt
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0, // expRewardAmt
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wtpolicy.ErrCreatesDust, // bindErr
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chanType,
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),
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genTaskTest(
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