multi: move mockChainIO, mockNotifier to lntest/mock

lntest/mock/chainio.go

@@ -0,0 +1,34 @@
+package mock
+
+import (
+	"github.com/btcsuite/btcd/chaincfg"
+	"github.com/btcsuite/btcd/chaincfg/chainhash"
+	"github.com/btcsuite/btcd/wire"
+)
+
+// ChainIO is a mock implementation of the BlockChainIO interface.
+type ChainIO struct {
+	BestHeight int32
+}
+
+// GetBestBlock currently returns dummy values.
+func (c *ChainIO) GetBestBlock() (*chainhash.Hash, int32, error) {
+	return chaincfg.TestNet3Params.GenesisHash, c.BestHeight, nil
+}
+
+// GetUtxo currently returns dummy values.
+func (c *ChainIO) GetUtxo(op *wire.OutPoint, _ []byte,
+	heightHint uint32, _ <-chan struct{}) (*wire.TxOut, error) {
+
+	return nil, nil
+}
+
+// GetBlockHash currently returns dummy values.
+func (c *ChainIO) GetBlockHash(blockHeight int64) (*chainhash.Hash, error) {
+	return nil, nil
+}
+
+// GetBlock currently returns dummy values.
+func (c *ChainIO) GetBlock(blockHash *chainhash.Hash) (*wire.MsgBlock, error) {
+	return nil, nil
+}