mirror of
https://github.com/lightningnetwork/lnd.git
synced 2024-11-20 02:27:21 +01:00
91f3df07e4
Modifying the static fees is not thread safe. In this commit the fees are made immutable.
92 lines
2.6 KiB
Go
92 lines
2.6 KiB
Go
package lnwallet_test
|
|
|
|
import (
|
|
"testing"
|
|
|
|
"github.com/btcsuite/btcutil"
|
|
"github.com/lightningnetwork/lnd/lnwallet"
|
|
)
|
|
|
|
// TestFeeRateTypes checks that converting fee rates between the
|
|
// different types that represent fee rates and calculating fees
|
|
// work as expected.
|
|
func TestFeeRateTypes(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
// We'll be calculating the transaction fees for the given measurements
|
|
// using different fee rates and expecting them to match.
|
|
const vsize = 300
|
|
const weight = vsize * 4
|
|
|
|
// Test the conversion from sat/kw to sat/kb.
|
|
for feePerKw := lnwallet.SatPerKWeight(250); feePerKw < 10000; feePerKw += 50 {
|
|
feePerKB := feePerKw.FeePerKVByte()
|
|
if feePerKB != lnwallet.SatPerKVByte(feePerKw*4) {
|
|
t.Fatalf("expected %d sat/kb, got %d sat/kb when "+
|
|
"converting from %d sat/kw", feePerKw*4,
|
|
feePerKB, feePerKw)
|
|
}
|
|
|
|
// The resulting transaction fee should be the same when using
|
|
// both rates.
|
|
expectedFee := btcutil.Amount(feePerKw * weight / 1000)
|
|
fee1 := feePerKw.FeeForWeight(weight)
|
|
if fee1 != expectedFee {
|
|
t.Fatalf("expected fee of %d sats, got %d sats",
|
|
expectedFee, fee1)
|
|
}
|
|
fee2 := feePerKB.FeeForVSize(vsize)
|
|
if fee2 != expectedFee {
|
|
t.Fatalf("expected fee of %d sats, got %d sats",
|
|
expectedFee, fee2)
|
|
}
|
|
}
|
|
|
|
// Test the conversion from sat/kb to sat/kw.
|
|
for feePerKB := lnwallet.SatPerKVByte(1000); feePerKB < 40000; feePerKB += 1000 {
|
|
feePerKw := feePerKB.FeePerKWeight()
|
|
if feePerKw != lnwallet.SatPerKWeight(feePerKB/4) {
|
|
t.Fatalf("expected %d sat/kw, got %d sat/kw when "+
|
|
"converting from %d sat/kb", feePerKB/4,
|
|
feePerKw, feePerKB)
|
|
}
|
|
|
|
// The resulting transaction fee should be the same when using
|
|
// both rates.
|
|
expectedFee := btcutil.Amount(feePerKB * vsize / 1000)
|
|
fee1 := feePerKB.FeeForVSize(vsize)
|
|
if fee1 != expectedFee {
|
|
t.Fatalf("expected fee of %d sats, got %d sats",
|
|
expectedFee, fee1)
|
|
}
|
|
fee2 := feePerKw.FeeForWeight(weight)
|
|
if fee2 != expectedFee {
|
|
t.Fatalf("expected fee of %d sats, got %d sats",
|
|
expectedFee, fee2)
|
|
}
|
|
}
|
|
}
|
|
|
|
// TestStaticFeeEstimator checks that the StaticFeeEstimator
|
|
// returns the expected fee rate.
|
|
func TestStaticFeeEstimator(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
const feePerKw = lnwallet.FeePerKwFloor
|
|
|
|
feeEstimator := lnwallet.NewStaticFeeEstimator(feePerKw, 0)
|
|
if err := feeEstimator.Start(); err != nil {
|
|
t.Fatalf("unable to start fee estimator: %v", err)
|
|
}
|
|
defer feeEstimator.Stop()
|
|
|
|
feeRate, err := feeEstimator.EstimateFeePerKW(6)
|
|
if err != nil {
|
|
t.Fatalf("unable to get fee rate: %v", err)
|
|
}
|
|
|
|
if feeRate != feePerKw {
|
|
t.Fatalf("expected fee rate %v, got %v", feePerKw, feeRate)
|
|
}
|
|
}
|