lnd.xprv/sweep/fee_estimator_mock_test.go
Olaoluwa Osuntokun eda6ed224f
sweep: add unit tests for TestDetermineFeePerKw and CraftSweepAllTx
Along the way we also extend the mockFeeEstimator to be able to return a
fee rate for a specified confirmation target.
2019-01-09 15:55:28 -08:00

71 lines
1.3 KiB
Go

package sweep
import (
"sync"
"github.com/lightningnetwork/lnd/lnwallet"
)
// mockFeeEstimator implements a mock fee estimator. It closely resembles
// lnwallet.StaticFeeEstimator with the addition that fees can be changed for
// testing purposes in a thread safe manner.
type mockFeeEstimator struct {
feePerKW lnwallet.SatPerKWeight
relayFee lnwallet.SatPerKWeight
blocksToFee map[uint32]lnwallet.SatPerKWeight
lock sync.Mutex
}
func newMockFeeEstimator(feePerKW,
relayFee lnwallet.SatPerKWeight) *mockFeeEstimator {
return &mockFeeEstimator{
feePerKW: feePerKW,
relayFee: relayFee,
blocksToFee: make(map[uint32]lnwallet.SatPerKWeight),
}
}
func (e *mockFeeEstimator) updateFees(feePerKW,
relayFee lnwallet.SatPerKWeight) {
e.lock.Lock()
defer e.lock.Unlock()
e.feePerKW = feePerKW
e.relayFee = relayFee
}
func (e *mockFeeEstimator) EstimateFeePerKW(numBlocks uint32) (
lnwallet.SatPerKWeight, error) {
e.lock.Lock()
defer e.lock.Unlock()
if fee, ok := e.blocksToFee[numBlocks]; ok {
return fee, nil
}
return e.feePerKW, nil
}
func (e *mockFeeEstimator) RelayFeePerKW() lnwallet.SatPerKWeight {
e.lock.Lock()
defer e.lock.Unlock()
return e.relayFee
}
func (e *mockFeeEstimator) Start() error {
return nil
}
func (e *mockFeeEstimator) Stop() error {
return nil
}
var _ lnwallet.FeeEstimator = (*mockFeeEstimator)(nil)