package test import ( "bytes" "context" "github.com/btcsuite/btcd/btcec" "github.com/btcsuite/btcd/wire" "github.com/lightningnetwork/lnd/input" "github.com/lightningnetwork/lnd/keychain" ) type mockSigner struct { lnd *LndMockServices } func (s *mockSigner) SignOutputRaw(ctx context.Context, tx *wire.MsgTx, signDescriptors []*input.SignDescriptor) ([][]byte, error) { s.lnd.SignOutputRawChannel <- SignOutputRawRequest{ Tx: tx, SignDescriptors: signDescriptors, } rawSigs := [][]byte{{1, 2, 3}} return rawSigs, nil } func (s *mockSigner) SignMessage(ctx context.Context, msg []byte, locator keychain.KeyLocator) ([]byte, error) { return s.lnd.Signature, nil } func (s *mockSigner) VerifyMessage(ctx context.Context, msg, sig []byte, pubkey [33]byte) (bool, error) { // Make the mock somewhat functional by asserting that the message and // signature is what we expect from the mock parameters. mockAssertion := bytes.Equal(msg, []byte(s.lnd.SignatureMsg)) && bytes.Equal(sig, s.lnd.Signature) return mockAssertion, nil } func (s *mockSigner) DeriveSharedKey(context.Context, *btcec.PublicKey, *keychain.KeyLocator) ([32]byte, error) { return [32]byte{4, 5, 6}, nil }