Fix test structures (TODO: fix tests themselves)

exp/lighthorizon/adapters/transaction_test.go

@@ -12,6 +12,7 @@ import (
 	"github.com/stretchr/testify/require"
 
 	"github.com/stellar/go/exp/lighthorizon/common"
+	"github.com/stellar/go/exp/lighthorizon/ingester"
 	"github.com/stellar/go/ingest"
 	"github.com/stellar/go/network"
 	protocol "github.com/stellar/go/protocols/horizon"
@@ -52,15 +53,17 @@ func TestTransactionAdapter(t *testing.T) {
 	closeTimestamp := expectedTx.LedgerCloseTime.UTC().Unix()
 
 	tx := common.Transaction{
-		LedgerTransaction: &ingest.LedgerTransaction{
-			Index:    0,
-			Envelope: txEnv,
-			Result: xdr.TransactionResultPair{
-				TransactionHash: xdr.Hash{},
-				Result:          txResult,
+		LedgerTransaction: &ingester.LedgerTransaction{
+			LedgerTransaction: &ingest.LedgerTransaction{
+				Index:    0,
+				Envelope: txEnv,
+				Result: xdr.TransactionResultPair{
+					TransactionHash: xdr.Hash{},
+					Result:          txResult,
+				},
+				FeeChanges: txFeeMeta,
+				UnsafeMeta: txMeta,
 			},
-			FeeChanges: txFeeMeta,
-			UnsafeMeta: txMeta,
 		},
 		LedgerHeader: &xdr.LedgerHeader{
 			LedgerSeq: xdr.Uint32(expectedTx.Ledger),

exp/lighthorizon/ingester/mock_ingester.go

@@ -3,6 +3,7 @@ package ingester
 import (
 	"context"
 
+	"github.com/stellar/go/historyarchive"
 	"github.com/stellar/go/xdr"
 	"github.com/stretchr/testify/mock"
 )
@@ -28,6 +29,11 @@ func (m *MockIngester) GetLedger(ctx context.Context, sequence uint32) (xdr.Seri
 	return args.Get(0).(xdr.SerializedLedgerCloseMeta), args.Error(1)
 }
 
+func (m *MockIngester) PrepareRange(ctx context.Context, r historyarchive.Range) error {
+	args := m.Called(ctx, r)
+	return args.Error(0)
+}
+
 type MockLedgerTransactionReader struct {
 	mock.Mock
 }