mirror of
https://github.com/lightninglabs/loop.git
synced 2026-08-13 12:33:03 +02:00
608 lines
17 KiB
Go
608 lines
17 KiB
Go
package withdraw
|
|
|
|
import (
|
|
"context"
|
|
"testing"
|
|
|
|
"github.com/btcsuite/btcd/btcutil"
|
|
"github.com/btcsuite/btcd/chaincfg"
|
|
"github.com/btcsuite/btcd/chaincfg/chainhash"
|
|
"github.com/btcsuite/btcd/txscript"
|
|
"github.com/btcsuite/btcd/wire"
|
|
"github.com/lightninglabs/loop/staticaddr/deposit"
|
|
"github.com/lightninglabs/loop/swapserverrpc"
|
|
"github.com/lightninglabs/loop/test"
|
|
"github.com/lightningnetwork/lnd/funding"
|
|
"github.com/lightningnetwork/lnd/input"
|
|
"github.com/lightningnetwork/lnd/lnrpc"
|
|
"github.com/lightningnetwork/lnd/lnwallet"
|
|
"github.com/lightningnetwork/lnd/lnwallet/chainfee"
|
|
"github.com/stretchr/testify/require"
|
|
)
|
|
|
|
// TestNewManagerHeightValidation ensures the constructor rejects zero heights.
|
|
func TestNewManagerHeightValidation(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
cfg := &ManagerConfig{}
|
|
|
|
_, err := NewManager(cfg, 0)
|
|
require.ErrorContains(t, err, "invalid current height 0")
|
|
|
|
manager, err := NewManager(cfg, 1)
|
|
require.NoError(t, err)
|
|
require.NotNil(t, manager)
|
|
}
|
|
|
|
// TestSignMusig2Tx_MissingSigningInfo tests that signMusig2Tx should error
|
|
// when sigInfo is missing an entry for one of the deposits.
|
|
//
|
|
// This test documents expected behavior. The function should validate that
|
|
// len(sigInfo) == len(sessions) and all sessions have corresponding sigInfo
|
|
// entries before attempting to sign, returning an error if validation fails.
|
|
func TestSignMusig2Tx_MissingSigningInfo(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
// Create a dummy transaction with two inputs.
|
|
tx := wire.NewMsgTx(2)
|
|
tx.AddTxIn(&wire.TxIn{
|
|
PreviousOutPoint: wire.OutPoint{
|
|
Hash: [32]byte{1},
|
|
Index: 0,
|
|
},
|
|
})
|
|
tx.AddTxIn(&wire.TxIn{
|
|
PreviousOutPoint: wire.OutPoint{
|
|
Hash: [32]byte{2},
|
|
Index: 0,
|
|
},
|
|
})
|
|
|
|
// Add a dummy output with a simple pkScript.
|
|
pkScript := []byte{
|
|
0x51, 0x20, // OP_1 OP_PUSHBYTES_32
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
}
|
|
|
|
tx.AddTxOut(&wire.TxOut{
|
|
Value: 10000,
|
|
PkScript: pkScript,
|
|
})
|
|
|
|
// Create deposit keys for both inputs.
|
|
deposit1Key := "0100000000000000000000000000000000000000000000000000000000000000:0"
|
|
deposit2Key := "0200000000000000000000000000000000000000000000000000000000000000:0"
|
|
|
|
// Create sessions for both deposits.
|
|
sessions := map[string]*input.MuSig2SessionInfo{
|
|
deposit1Key: {
|
|
SessionID: [32]byte{1},
|
|
},
|
|
deposit2Key: {
|
|
SessionID: [32]byte{2},
|
|
},
|
|
}
|
|
|
|
// Create sigInfo with only one entry (missing deposit2).
|
|
sigInfo := map[string]*swapserverrpc.ServerPsbtWithdrawSigningInfo{
|
|
deposit1Key: {
|
|
Nonce: make([]byte, 66),
|
|
Sig: make([]byte, 64),
|
|
},
|
|
}
|
|
|
|
// Create depositsToIdx mapping both deposits.
|
|
depositsToIdx := map[string]int{
|
|
deposit1Key: 0,
|
|
deposit2Key: 1,
|
|
}
|
|
|
|
// Create prevOutFetcher.
|
|
prevOuts := map[wire.OutPoint]*wire.TxOut{
|
|
tx.TxIn[0].PreviousOutPoint: {
|
|
Value: 5000,
|
|
PkScript: pkScript,
|
|
},
|
|
tx.TxIn[1].PreviousOutPoint: {
|
|
Value: 5000,
|
|
PkScript: pkScript,
|
|
},
|
|
}
|
|
prevOutFetcher := txscript.NewMultiPrevOutFetcher(prevOuts)
|
|
|
|
// Create a mock signer.
|
|
lnd := test.NewMockLnd()
|
|
signer := lnd.Signer
|
|
|
|
// Create a minimal manager.
|
|
m := &Manager{
|
|
cfg: &ManagerConfig{
|
|
Signer: signer,
|
|
},
|
|
}
|
|
|
|
// Call signMusig2Tx - it should error because sigInfo is missing
|
|
// an entry for deposit2.
|
|
//
|
|
// The function should validate that:
|
|
// 1. len(sigInfo) == len(sessions) == len(tx.TxIn)
|
|
// 2. All keys in sessions exist in sigInfo
|
|
// 3. No partial signing is allowed
|
|
//
|
|
// This test verifies that the function errors when sigInfo is
|
|
// incomplete, preventing a partially signed transaction.
|
|
ctx := context.Background()
|
|
_, err := m.signMusig2Tx(
|
|
ctx, prevOutFetcher, signer, tx, sessions, sigInfo,
|
|
depositsToIdx,
|
|
)
|
|
|
|
// Expect an error. The function should validate that sigInfo has
|
|
// entries for all sessions before attempting to sign.
|
|
require.ErrorContains(t, err, "unexpected number of partial "+
|
|
"signatures from server")
|
|
}
|
|
|
|
// TestSignMusig2Tx_MismatchedIndex tests that signMusig2Tx should error when
|
|
// sigInfo has all expected keys but one maps to the wrong index in depositsToIdx.
|
|
//
|
|
// This test documents expected behavior. The function should validate that
|
|
// each deposit maps to a unique index in [0, len(tx.TxIn)-1] before signing,
|
|
// returning an error if indices conflict or are out of bounds.
|
|
func TestSignMusig2Tx_MismatchedIndex(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
// Create a dummy transaction with two inputs.
|
|
tx := wire.NewMsgTx(2)
|
|
tx.AddTxIn(&wire.TxIn{
|
|
PreviousOutPoint: wire.OutPoint{
|
|
Hash: [32]byte{1},
|
|
Index: 0,
|
|
},
|
|
})
|
|
tx.AddTxIn(&wire.TxIn{
|
|
PreviousOutPoint: wire.OutPoint{
|
|
Hash: [32]byte{2},
|
|
Index: 0,
|
|
},
|
|
})
|
|
|
|
// Add a dummy output with a simple pkScript.
|
|
pkScript := []byte{
|
|
0x51, 0x20, // OP_1 OP_PUSHBYTES_32
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
}
|
|
|
|
tx.AddTxOut(&wire.TxOut{
|
|
Value: 10000,
|
|
PkScript: pkScript,
|
|
})
|
|
|
|
// Create deposit keys for both inputs.
|
|
deposit1Key := "0000000000000000000000000000000000000000000000000000000000000001:0"
|
|
deposit2Key := "0000000000000000000000000000000000000000000000000000000000000002:0"
|
|
|
|
// Create sessions for both deposits.
|
|
sessions := map[string]*input.MuSig2SessionInfo{
|
|
deposit1Key: {
|
|
SessionID: [32]byte{1},
|
|
},
|
|
deposit2Key: {
|
|
SessionID: [32]byte{2},
|
|
},
|
|
}
|
|
|
|
// Create sigInfo with both entries.
|
|
sigInfo := map[string]*swapserverrpc.ServerPsbtWithdrawSigningInfo{
|
|
deposit1Key: {
|
|
Nonce: make([]byte, 66),
|
|
Sig: make([]byte, 64),
|
|
},
|
|
deposit2Key: {
|
|
Nonce: make([]byte, 66),
|
|
Sig: make([]byte, 64),
|
|
},
|
|
}
|
|
|
|
// Create depositsToIdx with WRONG mapping for deposit2.
|
|
// deposit2 should map to index 1, but we map it to 0.
|
|
depositsToIdx := map[string]int{
|
|
deposit1Key: 0,
|
|
deposit2Key: 0, // Wrong! Should be 1.
|
|
}
|
|
|
|
// Create prevOutFetcher.
|
|
prevOuts := map[wire.OutPoint]*wire.TxOut{
|
|
tx.TxIn[0].PreviousOutPoint: {
|
|
Value: 5000,
|
|
PkScript: pkScript,
|
|
},
|
|
tx.TxIn[1].PreviousOutPoint: {
|
|
Value: 5000,
|
|
PkScript: pkScript,
|
|
},
|
|
}
|
|
prevOutFetcher := txscript.NewMultiPrevOutFetcher(prevOuts)
|
|
|
|
// Create a mock signer.
|
|
lnd := test.NewMockLnd()
|
|
signer := lnd.Signer
|
|
|
|
// Create a minimal manager.
|
|
m := &Manager{
|
|
cfg: &ManagerConfig{
|
|
Signer: signer,
|
|
},
|
|
}
|
|
|
|
// Call signMusig2Tx - it should error because depositsToIdx has
|
|
// a mismatched index for deposit2.
|
|
//
|
|
// The function should validate that:
|
|
// 1. Each deposit in depositsToIdx maps to a unique index
|
|
// 2. All indices from 0 to len(tx.TxIn)-1 are covered exactly once
|
|
// 3. No index is used twice (which would cause signature overwrites)
|
|
//
|
|
// In this case, both deposit1 and deposit2 map to index 0, which
|
|
// is invalid. The second deposit would overwrite the witness of
|
|
// the first input, resulting in an invalid transaction.
|
|
ctx := context.Background()
|
|
_, err := m.signMusig2Tx(
|
|
ctx, prevOutFetcher, signer, tx, sessions, sigInfo,
|
|
depositsToIdx,
|
|
)
|
|
|
|
// Expect an error. The function should validate index uniqueness.
|
|
require.ErrorContains(t, err, "deposit index maps wrong tx index")
|
|
}
|
|
|
|
// TestSignMusig2Tx_MissingOutpointInDepositMap tests that signMusig2Tx errors
|
|
// when a transaction input's outpoint is not present in depositsToIdx map.
|
|
//
|
|
// This test validates that the function checks all transaction inputs have
|
|
// corresponding entries in the depositsToIdx map before signing.
|
|
func TestSignMusig2Tx_MissingOutpointInDepositMap(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
// Create a dummy transaction with two inputs.
|
|
tx := wire.NewMsgTx(2)
|
|
tx.AddTxIn(&wire.TxIn{
|
|
PreviousOutPoint: wire.OutPoint{
|
|
Hash: [32]byte{1},
|
|
Index: 0,
|
|
},
|
|
})
|
|
tx.AddTxIn(&wire.TxIn{
|
|
PreviousOutPoint: wire.OutPoint{
|
|
Hash: [32]byte{2},
|
|
Index: 0,
|
|
},
|
|
})
|
|
|
|
// Add a dummy output with a simple pkScript.
|
|
pkScript := []byte{
|
|
0x51, 0x20, // OP_1 OP_PUSHBYTES_32
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
|
}
|
|
|
|
tx.AddTxOut(&wire.TxOut{
|
|
Value: 10000,
|
|
PkScript: pkScript,
|
|
})
|
|
|
|
// Create deposit keys for both inputs.
|
|
deposit1Key := "0100000000000000000000000000000000000000000000000000000000000000:0"
|
|
deposit2Key := "0200000000000000000000000000000000000000000000000000000000000000:0"
|
|
|
|
// Create sessions for both deposits.
|
|
sessions := map[string]*input.MuSig2SessionInfo{
|
|
deposit1Key: {
|
|
SessionID: [32]byte{1},
|
|
},
|
|
deposit2Key: {
|
|
SessionID: [32]byte{2},
|
|
},
|
|
}
|
|
|
|
// Create sigInfo with both entries.
|
|
sigInfo := map[string]*swapserverrpc.ServerPsbtWithdrawSigningInfo{
|
|
deposit1Key: {
|
|
Nonce: make([]byte, 66),
|
|
Sig: make([]byte, 64),
|
|
},
|
|
deposit2Key: {
|
|
Nonce: make([]byte, 66),
|
|
Sig: make([]byte, 64),
|
|
},
|
|
}
|
|
|
|
// Create a third deposit key that doesn't correspond to any tx input.
|
|
deposit3Key := "0300000000000000000000000000000000000000000000000000000000000000:0"
|
|
|
|
// Create depositsToIdx with deposit1 at correct index, but deposit3
|
|
// (which doesn't exist as a tx input) instead of deposit2.
|
|
// This means when the function iterates through tx.TxIn, it will find
|
|
// deposit1 in the map, but deposit2 (the actual second input) won't
|
|
// be found.
|
|
depositsToIdx := map[string]int{
|
|
deposit1Key: 0,
|
|
deposit3Key: 1, // Wrong key - this isn't a real tx input
|
|
}
|
|
|
|
// Create prevOutFetcher.
|
|
prevOuts := map[wire.OutPoint]*wire.TxOut{
|
|
tx.TxIn[0].PreviousOutPoint: {
|
|
Value: 5000,
|
|
PkScript: pkScript,
|
|
},
|
|
tx.TxIn[1].PreviousOutPoint: {
|
|
Value: 5000,
|
|
PkScript: pkScript,
|
|
},
|
|
}
|
|
prevOutFetcher := txscript.NewMultiPrevOutFetcher(prevOuts)
|
|
|
|
// Create a mock signer.
|
|
lnd := test.NewMockLnd()
|
|
signer := lnd.Signer
|
|
|
|
// Create a minimal manager.
|
|
m := &Manager{
|
|
cfg: &ManagerConfig{
|
|
Signer: signer,
|
|
},
|
|
}
|
|
|
|
// Call signMusig2Tx - it should error because the second transaction
|
|
// input's outpoint is not in depositsToIdx map.
|
|
//
|
|
// The function should validate that every transaction input has a
|
|
// corresponding entry in depositsToIdx before attempting to sign.
|
|
ctx := context.Background()
|
|
_, err := m.signMusig2Tx(
|
|
ctx, prevOutFetcher, signer, tx, sessions, sigInfo,
|
|
depositsToIdx,
|
|
)
|
|
|
|
// Expect an error indicating the missing outpoint.
|
|
require.ErrorContains(t, err, "tx outpoint not in deposit index map")
|
|
}
|
|
|
|
// TestCalculateWithdrawalTxValues tests various edge cases in withdrawal
|
|
// transaction value calculations.
|
|
func TestCalculateWithdrawalTxValues(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
// Create a taproot address for withdrawal.
|
|
taprootAddr, err := btcutil.NewAddressTaproot(
|
|
make([]byte, 32), &chaincfg.RegressionNetParams,
|
|
)
|
|
require.NoError(t, err)
|
|
|
|
// Standard fee rate for testing.
|
|
feeRate := chainfee.SatPerKWeight(1000)
|
|
|
|
// Helper to create deposits.
|
|
createDeposit := func(value btcutil.Amount, idx uint32) *deposit.Deposit {
|
|
hash := chainhash.Hash{}
|
|
hash[0] = byte(idx)
|
|
return &deposit.Deposit{
|
|
OutPoint: wire.OutPoint{
|
|
Hash: hash,
|
|
Index: idx,
|
|
},
|
|
Value: value,
|
|
}
|
|
}
|
|
|
|
tests := []struct {
|
|
name string
|
|
deposits []*deposit.Deposit
|
|
localAmount btcutil.Amount
|
|
feeRate chainfee.SatPerKWeight
|
|
withdrawAddr btcutil.Address
|
|
commitmentType lnrpc.CommitmentType
|
|
expectedErr string
|
|
expectDustFee bool // change is dust, given to miners
|
|
}{
|
|
{
|
|
name: "neither address nor commitment type specified",
|
|
deposits: []*deposit.Deposit{
|
|
createDeposit(100000, 0),
|
|
},
|
|
localAmount: 0,
|
|
feeRate: feeRate,
|
|
withdrawAddr: nil,
|
|
commitmentType: lnrpc.CommitmentType_UNKNOWN_COMMITMENT_TYPE,
|
|
expectedErr: "either address or commitment type must be specified",
|
|
},
|
|
{
|
|
name: "change is dust - given to miners",
|
|
deposits: []*deposit.Deposit{
|
|
createDeposit(100000, 0),
|
|
},
|
|
// Set localAmount such that change after feeWithChange
|
|
// would be dust, but change after feeWithoutChange >= 0.
|
|
// This triggers case: change-feeWithoutChange >= 0
|
|
localAmount: 99300, // Leaves ~700 sats which is dust
|
|
feeRate: feeRate,
|
|
withdrawAddr: taprootAddr,
|
|
commitmentType: lnrpc.CommitmentType_UNKNOWN_COMMITMENT_TYPE,
|
|
expectedErr: "",
|
|
expectDustFee: true,
|
|
},
|
|
{
|
|
name: "insufficient funds after dust and fee",
|
|
deposits: []*deposit.Deposit{
|
|
createDeposit(1000, 0),
|
|
},
|
|
localAmount: 900,
|
|
feeRate: feeRate,
|
|
withdrawAddr: taprootAddr,
|
|
commitmentType: lnrpc.CommitmentType_UNKNOWN_COMMITMENT_TYPE,
|
|
expectedErr: "doesn't cover for fees",
|
|
},
|
|
{
|
|
name: "negative change after fees",
|
|
deposits: []*deposit.Deposit{
|
|
createDeposit(10000, 0),
|
|
},
|
|
localAmount: 15000,
|
|
feeRate: feeRate,
|
|
withdrawAddr: taprootAddr,
|
|
commitmentType: lnrpc.CommitmentType_UNKNOWN_COMMITMENT_TYPE,
|
|
expectedErr: "doesn't cover for fees",
|
|
},
|
|
{
|
|
name: "min channel size guard - below minimum",
|
|
deposits: []*deposit.Deposit{
|
|
createDeposit(funding.MinChanFundingSize-10, 0),
|
|
},
|
|
localAmount: 0,
|
|
feeRate: feeRate,
|
|
withdrawAddr: nil,
|
|
commitmentType: lnrpc.CommitmentType_SIMPLE_TAPROOT,
|
|
expectedErr: "is lower than the minimum channel " +
|
|
"funding size",
|
|
},
|
|
{
|
|
name: "min channel size guard - exactly minimum",
|
|
deposits: []*deposit.Deposit{
|
|
createDeposit(funding.MinChanFundingSize+1000, 0),
|
|
},
|
|
localAmount: 0,
|
|
feeRate: feeRate,
|
|
withdrawAddr: nil,
|
|
commitmentType: lnrpc.CommitmentType_SIMPLE_TAPROOT,
|
|
expectedErr: "",
|
|
},
|
|
{
|
|
name: "withdrawal amount below dust limit",
|
|
deposits: []*deposit.Deposit{
|
|
createDeposit(400, 0),
|
|
},
|
|
localAmount: 0,
|
|
feeRate: feeRate,
|
|
withdrawAddr: taprootAddr,
|
|
commitmentType: lnrpc.CommitmentType_UNKNOWN_COMMITMENT_TYPE,
|
|
expectedErr: "below dust limit",
|
|
},
|
|
{
|
|
name: "change higher than input value",
|
|
deposits: []*deposit.Deposit{
|
|
createDeposit(10000, 0),
|
|
createDeposit(5000, 1),
|
|
},
|
|
localAmount: 5000,
|
|
feeRate: chainfee.SatPerKWeight(100),
|
|
withdrawAddr: taprootAddr,
|
|
commitmentType: lnrpc.CommitmentType_UNKNOWN_COMMITMENT_TYPE,
|
|
expectedErr: "change amount",
|
|
},
|
|
{
|
|
name: "successful withdrawal with change",
|
|
deposits: []*deposit.Deposit{
|
|
createDeposit(100000, 0),
|
|
},
|
|
localAmount: 50000,
|
|
feeRate: feeRate,
|
|
withdrawAddr: taprootAddr,
|
|
commitmentType: lnrpc.CommitmentType_UNKNOWN_COMMITMENT_TYPE,
|
|
expectedErr: "",
|
|
},
|
|
{
|
|
name: "successful withdrawal no change",
|
|
deposits: []*deposit.Deposit{
|
|
createDeposit(100000, 0),
|
|
},
|
|
localAmount: 0,
|
|
feeRate: feeRate,
|
|
withdrawAddr: taprootAddr,
|
|
commitmentType: lnrpc.CommitmentType_UNKNOWN_COMMITMENT_TYPE,
|
|
expectedErr: "",
|
|
},
|
|
{
|
|
name: "successful channel open above min size",
|
|
deposits: []*deposit.Deposit{
|
|
createDeposit(funding.MinChanFundingSize*2, 0),
|
|
},
|
|
localAmount: 0,
|
|
feeRate: feeRate,
|
|
withdrawAddr: nil,
|
|
commitmentType: lnrpc.CommitmentType_SIMPLE_TAPROOT,
|
|
expectedErr: "",
|
|
},
|
|
}
|
|
|
|
for _, tc := range tests {
|
|
t.Run(tc.name, func(t *testing.T) {
|
|
withdrawAmt, changeAmt, err := CalculateWithdrawalTxValues(
|
|
tc.deposits, tc.localAmount, tc.feeRate,
|
|
tc.withdrawAddr, tc.commitmentType,
|
|
)
|
|
|
|
if tc.expectedErr != "" {
|
|
require.Error(t, err)
|
|
require.ErrorContains(t, err, tc.expectedErr)
|
|
return
|
|
}
|
|
|
|
require.NoError(t, err)
|
|
require.Greater(t, withdrawAmt, btcutil.Amount(0))
|
|
require.GreaterOrEqual(t, changeAmt, btcutil.Amount(0))
|
|
|
|
// Verify that withdrawal amount meets dust threshold.
|
|
dustLimit := lnwallet.DustLimitForSize(input.P2TRSize)
|
|
require.GreaterOrEqual(t, withdrawAmt, dustLimit)
|
|
|
|
// If this is a channel open, verify min channel size.
|
|
if tc.commitmentType != lnrpc.CommitmentType_UNKNOWN_COMMITMENT_TYPE {
|
|
require.GreaterOrEqual(
|
|
t, withdrawAmt, funding.MinChanFundingSize,
|
|
)
|
|
}
|
|
|
|
// If expecting dust to be given to miners, verify
|
|
// changeAmt is 0.
|
|
if tc.expectDustFee {
|
|
require.Equal(t, btcutil.Amount(0), changeAmt,
|
|
"change should be 0 when dust is given to miners")
|
|
}
|
|
|
|
// Verify total accounting: inputs = withdrawal + change + fees.
|
|
totalInputs := btcutil.Amount(0)
|
|
for _, d := range tc.deposits {
|
|
totalInputs += d.Value
|
|
}
|
|
|
|
hasChange := changeAmt > 0
|
|
weight, err := WithdrawalTxWeight(
|
|
len(tc.deposits), tc.withdrawAddr,
|
|
tc.commitmentType, hasChange,
|
|
)
|
|
require.NoError(t, err)
|
|
|
|
fee := tc.feeRate.FeeForWeight(weight)
|
|
|
|
// When dust is given to miners, the "fee" includes both
|
|
// the transaction fee and the dust amount.
|
|
if tc.expectDustFee {
|
|
// Total should equal withdrawal + implicit fee (including dust)
|
|
implicitFee := totalInputs - withdrawAmt - changeAmt
|
|
require.Greater(t, implicitFee, fee,
|
|
"implicit fee should be greater than tx fee when dust is given to miners")
|
|
} else {
|
|
require.Equal(t, totalInputs, withdrawAmt+changeAmt+fee)
|
|
}
|
|
})
|
|
}
|
|
}
|