From 9b6f168a556c50f678480dd9d46496f1add7f73d Mon Sep 17 00:00:00 2001
From: alex <rusdev.alex@gmail.com>
Date: Fri, 9 Feb 2024 19:26:53 +1000
Subject: [PATCH] TestTxIndexing() shows the effect of the fix

---
 gossip/txposition_test.go | 67 ++++++++++++++++++++++++++++-----------
 1 file changed, 49 insertions(+), 18 deletions(-)

diff --git a/gossip/txposition_test.go b/gossip/txposition_test.go
index e277d7071..8651d2ae3 100644
--- a/gossip/txposition_test.go
+++ b/gossip/txposition_test.go
@@ -1,10 +1,10 @@
 package gossip
 
 import (
-	"fmt"
 	"math/big"
 	"testing"
 
+	"github.com/Fantom-foundation/lachesis-base/inter/idx"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/stretchr/testify/require"
 
@@ -17,16 +17,21 @@ func TestTxIndexing(t *testing.T) {
 	logger.SetLevel("debug")
 	require := require.New(t)
 
-	env := newTestEnv(2, 3)
+	var (
+		epoch      = idx.Epoch(256)
+		validators = idx.Validator(3)
+		proposals  = [][32]byte{
+			ballotOption("Option 1"),
+			ballotOption("Option 2"),
+			ballotOption("Option 3"),
+		}
+	)
+
+	env := newTestEnv(epoch, validators)
 	defer env.Close()
 
-	proposals := [][32]byte{
-		ballotOption("Option 1"),
-		ballotOption("Option 2"),
-		ballotOption("Option 3"),
-	}
+	// Preparing:
 
-	// preparing
 	_, tx1pre, cBallot, err := ballot.DeployBallot(env.Pay(1), env, proposals)
 	require.NoError(err)
 	require.NotNil(cBallot)
@@ -34,7 +39,7 @@ func TestTxIndexing(t *testing.T) {
 	tx2pre, err := cBallot.GiveRightToVote(env.Pay(1), env.Address(3))
 	require.NoError(err)
 	require.NotNil(tx2pre)
-	receipts, err := env.BlockTxs(nextEpoch,
+	receipts, err := env.ApplyTxs(sameEpoch,
 		tx1pre,
 		tx2pre,
 	)
@@ -43,6 +48,9 @@ func TestTxIndexing(t *testing.T) {
 	for i, r := range receipts {
 		require.Equal(types.ReceiptStatusSuccessful, r.Status, i)
 	}
+
+	// Testing:
+
 	// invalid tx
 	tx1reverted, err := cBallot.Vote(env.Pay(2), big.NewInt(0))
 	require.NoError(err)
@@ -52,23 +60,46 @@ func TestTxIndexing(t *testing.T) {
 	require.NoError(err)
 	require.NotNil(tx2ok)
 	// skipped tx
-	_, tx3skipped, _, err := ballot.DeployBallot(withLowGas(env.Pay(1)), env, proposals)
+	tx3skipped := tx2ok
+	// valid tx
+	tx4ok, err := cBallot.GiveRightToVote(env.Pay(1), env.Address(2))
 	require.NoError(err)
-	require.NotNil(tx3skipped)
+	require.NotNil(tx1reverted)
 
-	receipts, err = env.BlockTxs(nextEpoch,
+	receipts, err = env.BlockTxs(sameEpoch,
 		tx1reverted,
 		tx2ok,
 		tx3skipped,
-	)
+		tx4ok)
 	require.NoError(err)
 	require.Len(receipts, 3)
-	var block *big.Int
+
+	var blockN *big.Int
 	for i, r := range receipts {
-		if block == nil {
-			block = r.BlockNumber
+		if blockN == nil {
+			blockN = r.BlockNumber
 		}
-		require.Equal(block.Uint64(), r.BlockNumber.Uint64(), i)
-	}
+		require.Equal(blockN.Uint64(), r.BlockNumber.Uint64(), i)
 
+		txPos := env.store.evm.GetTxPosition(r.TxHash)
+		require.NotNil(txPos)
+
+		switch r.TxHash {
+		case tx1reverted.Hash():
+			require.Equal(types.ReceiptStatusFailed, r.Status, i)
+			require.Equal(txPos.BlockOffset, uint32(0))
+		case tx2ok.Hash():
+			require.Equal(types.ReceiptStatusSuccessful, r.Status, i)
+			require.Equal(txPos.BlockOffset, uint32(1))
+		case tx3skipped.Hash():
+			t.Fatal("skipped tx's receipt found")
+		case tx4ok.Hash():
+			require.Equal(types.ReceiptStatusSuccessful, r.Status, i)
+			require.Equal(txPos.BlockOffset, uint32(3)) // THAT shows the effect of the fix #524
+		}
+
+		for j, l := range r.Logs {
+			require.Equal(txPos.BlockOffset, l.TxIndex, j)
+		}
+	}
 }