chanfunding: assure logic for high-fee

Without this change the high-fee logic is never tested as it is instead caught by the dust-output logic. This change uses a higher fee rate to ensure an output value above the dust limit, while still spending 20% on fees.
This commit is contained in:
Bjarne Magnussen 2020-08-19 12:00:05 +02:00
parent 9e825e6c0f
commit 07549d50ff
No known key found for this signature in database
GPG Key ID: B0A9ADF6B24CE67F

@ -205,11 +205,13 @@ func TestCoinSelectSubtractFees(t *testing.T) {
t.Parallel()
const feeRate = chainfee.SatPerKWeight(100)
const highFeeRate = chainfee.SatPerKWeight(1000)
const dustLimit = btcutil.Amount(1000)
const dust = btcutil.Amount(100)
type testCase struct {
name string
highFee bool
spendValue btcutil.Amount
coins []Coin
@ -321,15 +323,16 @@ func TestCoinSelectSubtractFees(t *testing.T) {
{
// If more than 20% of funds goes to fees, it should fail.
name: "high fee",
highFee: true,
coins: []Coin{
{
TxOut: wire.TxOut{
PkScript: p2wkhScript,
Value: int64(5 * fundingFee(feeRate, 1, false)),
Value: int64(5 * fundingFee(highFeeRate, 1, false)),
},
},
},
spendValue: 5 * fundingFee(feeRate, 1, false),
spendValue: 5 * fundingFee(highFeeRate, 1, false),
expectErr: true,
},
@ -339,6 +342,11 @@ func TestCoinSelectSubtractFees(t *testing.T) {
test := test
t.Run(test.name, func(t *testing.T) {
feeRate := feeRate
if test.highFee {
feeRate = highFeeRate
}
selected, localFundingAmt, changeAmt, err := CoinSelectSubtractFees(
feeRate, test.spendValue, dustLimit, test.coins,
)