ProcessTxs fees collct update & tests, and other:

- Update StateDB ProcessTxs fees collection
- Update ProcessTxs tests to last StateDB & Til changes
- Til Blockchain L2Txs remove Nonce generation, update tests accordingly
- Update Til Set to test fees

common/zk.go

@@ -149,6 +149,14 @@ type ZKInputs struct {
 	//
 
 	// Intermediate States to parallelize witness computation
+	// Note: the Intermediate States (IS) of the last transaction does not
+	// exist. Meaning that transaction 3 (4th) will fill the parameters
+	// FromIdx[3] and ISOnChain[3], but last transaction (nTx-1) will fill
+	// FromIdx[nTx-1] but will not fill ISOnChain. That's why IS have
+	// length of nTx-1, while the other parameters have length of nTx.
+	// Last transaction does not need intermediate state since its output
+	// will not be used.
+
 	// decode-tx
 	// ISOnChain indicates if tx is L1 (true) or L2 (false)
 	ISOnChain []*big.Int // bool, len: [nTx - 1]

db/statedb/txprocessors.go

@@ -214,7 +214,7 @@ func (s *StateDB) ProcessTxs(coordIdxs []common.Idx, l1usertxs, l1coordinatortxs
 		}
 	}
 	if s.typ == TypeSynchronizer {
-		// return exitInfos and createdAccounts, so Synchronizer will
+		// return exitInfos, createdAccounts and collectedFees, so Synchronizer will
 		// be able to store it into HistoryDB for the concrete BatchNum
 		return &ProcessTxOutput{
 			ZKInputs:           nil,
@@ -230,6 +230,7 @@ func (s *StateDB) ProcessTxs(coordIdxs []common.Idx, l1usertxs, l1coordinatortxs
 	// zki.FeeIdxs = ? // TODO, this will be get from the config file
 	tokenIDs, err := s.getTokenIDsBigInt(l1usertxs, l1coordinatortxs, l2txs)
 	if err != nil {
+		log.Error(err)
 		return nil, err
 	}
 	s.zki.FeePlanTokens = tokenIDs
@@ -261,8 +262,9 @@ func (s *StateDB) getTokenIDsBigInt(l1usertxs, l1coordinatortxs []common.L1Tx, l
 	for i := 0; i < len(l2txs); i++ {
 		// as L2Tx does not have parameter TokenID, get it from the
 		// AccountsDB (in the StateDB)
-		acc, err := s.GetAccount(l2txs[i].ToIdx)
+		acc, err := s.GetAccount(l2txs[i].FromIdx)
 		if err != nil {
+			log.Errorf("ToIdx %d not found: %s", l2txs[i].ToIdx, err.Error())
 			return nil, err
 		}
 		tokenIDs[acc.TokenID] = true
@@ -297,8 +299,10 @@ func (s *StateDB) processL1Tx(exitTree *merkletree.MerkleTree, tx *common.L1Tx)
 			s.zki.FromBJJCompressed[s.i] = BJJCompressedTo256BigInts(tx.FromBJJ.Compress())
 		}
 
-		// Intermediate States
+		// Intermediate States, for all the transactions except for the last one
-		s.zki.ISOnChain[s.i] = big.NewInt(1)
+		if s.i < len(s.zki.ISOnChain) { // len(s.zki.ISOnChain) == nTx
+			s.zki.ISOnChain[s.i] = big.NewInt(1)
+		}
 	}
 
 	switch tx.Type {
@@ -604,18 +608,18 @@ func (s *StateDB) applyTransfer(coordIdxsMap map[common.TokenID]common.Idx, coll
 		feeAndAmount := new(big.Int).Add(tx.Amount, fee)
 		accSender.Balance = new(big.Int).Sub(accSender.Balance, feeAndAmount)
 		// send the fee to the Idx of the Coordinator for the TokenID
-		accCoord, err := s.GetAccount(coordIdxsMap[tx.TokenID])
+		accCoord, err := s.GetAccount(coordIdxsMap[accSender.TokenID])
 		if err != nil {
 			log.Debugw("No coord Idx to receive fee", "tx", tx)
 		} else {
 			accCoord.Balance = new(big.Int).Add(accCoord.Balance, fee)
-			_, err = s.UpdateAccount(coordIdxsMap[tx.TokenID], accCoord)
+			_, err = s.UpdateAccount(coordIdxsMap[accSender.TokenID], accCoord)
 			if err != nil {
 				log.Error(err)
 				return err
 			}
 			if s.typ == TypeSynchronizer {
-				collected := collectedFees[tx.TokenID]
+				collected := collectedFees[accSender.TokenID]
 				collected.Add(collected, fee)
 			}
 		}
@@ -743,18 +747,18 @@ func (s *StateDB) applyExit(coordIdxsMap map[common.TokenID]common.Idx, collecte
 		acc.Balance = new(big.Int).Sub(acc.Balance, feeAndAmount)
 
 		// send the fee to the Idx of the Coordinator for the TokenID
-		accCoord, err := s.GetAccount(coordIdxsMap[tx.TokenID])
+		accCoord, err := s.GetAccount(coordIdxsMap[acc.TokenID])
 		if err != nil {
 			log.Debugw("No coord Idx to receive fee", "tx", tx)
 		} else {
 			accCoord.Balance = new(big.Int).Add(accCoord.Balance, fee)
-			_, err = s.UpdateAccount(coordIdxsMap[tx.TokenID], accCoord)
+			_, err = s.UpdateAccount(coordIdxsMap[acc.TokenID], accCoord)
 			if err != nil {
 				log.Error(err)
 				return nil, false, err
 			}
 			if s.typ == TypeSynchronizer {
-				collected := collectedFees[tx.TokenID]
+				collected := collectedFees[acc.TokenID]
 				collected.Add(collected, fee)
 			}
 		}

db/statedb/txprocessors_test.go

@@ -1,6 +1,8 @@
 package statedb
 
 import (
+	"encoding/json"
+	"fmt"
 	"io/ioutil"
 	"os"
 	"testing"
@@ -13,12 +15,7 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
-// TODO: Test CollectedFees output
-
 func TestProcessTxsSynchronizer(t *testing.T) {
-	// TODO once TTGL is updated, use the blockchain L2Tx (not PoolL2Tx) for
-	// the Synchronizer tests
-
 	dir, err := ioutil.TempDir("", "tmpdb")
 	require.Nil(t, err)
 	defer assert.Nil(t, os.RemoveAll(dir))
@@ -26,7 +23,7 @@ func TestProcessTxsSynchronizer(t *testing.T) {
 	sdb, err := NewStateDB(dir, TypeSynchronizer, 32)
 	assert.Nil(t, err)
 
-	// generate test transactions from test.SetTest0 code
+	// generate test transactions from test.SetBlockchain0 code
 	tc := til.NewContext(eth.RollupConstMaxL1UserTx)
 	blocks, err := tc.GenerateBlocks(til.SetBlockchain0)
 	require.Nil(t, err)
@@ -36,7 +33,7 @@ func TestProcessTxsSynchronizer(t *testing.T) {
 	assert.Equal(t, 0, len(blocks[0].Batches[1].L1CoordinatorTxs))
 	assert.Equal(t, 22, len(blocks[0].Batches[2].L2Txs))
 	assert.Equal(t, 1, len(blocks[1].Batches[0].L1CoordinatorTxs))
-	assert.Equal(t, 59, len(blocks[1].Batches[0].L2Txs))
+	assert.Equal(t, 62, len(blocks[1].Batches[0].L2Txs))
 	assert.Equal(t, 1, len(blocks[1].Batches[1].L1CoordinatorTxs))
 	assert.Equal(t, 8, len(blocks[1].Batches[1].L2Txs))
 
@@ -48,54 +45,83 @@ func TestProcessTxsSynchronizer(t *testing.T) {
 
 	// Process the 1st batch, which contains the L1CoordinatorTxs necessary
 	// to create the Coordinator accounts to receive the fees
-	log.Debug("1st batch, 1st block, only L1CoordinatorTxs")
+	log.Debug("block:0 batch:0, only L1CoordinatorTxs")
 	ptOut, err := sdb.ProcessTxs(nil, nil, blocks[0].Batches[0].L1CoordinatorTxs, nil)
 	require.Nil(t, err)
 	assert.Equal(t, 4, len(ptOut.CreatedAccounts))
+	assert.Equal(t, 0, len(ptOut.CollectedFees))
 
-	log.Debug("2nd batch, 1st block")
+	log.Debug("block:0 batch:1")
 	l2Txs := common.L2TxsToPoolL2Txs(blocks[0].Batches[1].L2Txs)
 	ptOut, err = sdb.ProcessTxs(coordIdxs, blocks[0].L1UserTxs, blocks[0].Batches[1].L1CoordinatorTxs, l2Txs)
 	require.Nil(t, err)
 	assert.Equal(t, 0, len(ptOut.ExitInfos))
 	assert.Equal(t, 31, len(ptOut.CreatedAccounts))
+	assert.Equal(t, 4, len(ptOut.CollectedFees))
+	assert.Equal(t, "0", ptOut.CollectedFees[common.TokenID(0)].String())
+	assert.Equal(t, "0", ptOut.CollectedFees[common.TokenID(1)].String())
+	assert.Equal(t, "0", ptOut.CollectedFees[common.TokenID(2)].String())
+	assert.Equal(t, "0", ptOut.CollectedFees[common.TokenID(3)].String())
 	acc, err := sdb.GetAccount(idxA1)
 	require.Nil(t, err)
 	assert.Equal(t, "50", acc.Balance.String())
 
-	log.Debug("3rd batch, 1st block")
+	log.Debug("block:0 batch:2")
 	l2Txs = common.L2TxsToPoolL2Txs(blocks[0].Batches[2].L2Txs)
 	ptOut, err = sdb.ProcessTxs(coordIdxs, nil, blocks[0].Batches[2].L1CoordinatorTxs, l2Txs)
 	require.Nil(t, err)
-	// TODO once TTGL is updated, add a check that a input poolL2Tx with
-	// Nonce & TokenID =0, after ProcessTxs call has the expected value
-
 	assert.Equal(t, 0, len(ptOut.ExitInfos))
 	assert.Equal(t, 0, len(ptOut.CreatedAccounts))
+	assert.Equal(t, 4, len(ptOut.CollectedFees))
+	assert.Equal(t, "2", ptOut.CollectedFees[common.TokenID(0)].String())
+	assert.Equal(t, "1", ptOut.CollectedFees[common.TokenID(1)].String())
+	assert.Equal(t, "0", ptOut.CollectedFees[common.TokenID(2)].String())
+	assert.Equal(t, "0", ptOut.CollectedFees[common.TokenID(3)].String())
 	acc, err = sdb.GetAccount(idxA1)
 	require.Nil(t, err)
-	assert.Equal(t, "28", acc.Balance.String())
+	assert.Equal(t, "35", acc.Balance.String())
 
-	log.Debug("1st batch, 2nd block")
+	log.Debug("block:1 batch:0")
 	l2Txs = common.L2TxsToPoolL2Txs(blocks[1].Batches[0].L2Txs)
+	// before processing expect l2Txs[0:2].Nonce==0
+	assert.Equal(t, common.Nonce(0), l2Txs[0].Nonce)
+	assert.Equal(t, common.Nonce(0), l2Txs[1].Nonce)
+	assert.Equal(t, common.Nonce(0), l2Txs[2].Nonce)
+
 	ptOut, err = sdb.ProcessTxs(coordIdxs, nil, blocks[1].Batches[0].L1CoordinatorTxs, l2Txs)
 	require.Nil(t, err)
+
+	// after processing expect l2Txs[0:2].Nonce!=0 and has expected value
+	assert.Equal(t, common.Nonce(6), l2Txs[0].Nonce)
+	assert.Equal(t, common.Nonce(7), l2Txs[1].Nonce)
+	assert.Equal(t, common.Nonce(8), l2Txs[2].Nonce)
+
 	assert.Equal(t, 4, len(ptOut.ExitInfos)) // the 'ForceExit(1)' is not computed yet, as the batch is without L1UserTxs
 	assert.Equal(t, 1, len(ptOut.CreatedAccounts))
+	assert.Equal(t, 4, len(ptOut.CollectedFees))
+	assert.Equal(t, "0", ptOut.CollectedFees[common.TokenID(0)].String())
+	assert.Equal(t, "1", ptOut.CollectedFees[common.TokenID(1)].String())
+	assert.Equal(t, "0", ptOut.CollectedFees[common.TokenID(2)].String())
+	assert.Equal(t, "0", ptOut.CollectedFees[common.TokenID(3)].String())
 	acc, err = sdb.GetAccount(idxA1)
 	require.Nil(t, err)
-	assert.Equal(t, "53", acc.Balance.String())
+	assert.Equal(t, "57", acc.Balance.String())
 
-	log.Debug("2nd batch, 2nd block")
+	log.Debug("block:1 batch:1")
 	l2Txs = common.L2TxsToPoolL2Txs(blocks[1].Batches[1].L2Txs)
 	ptOut, err = sdb.ProcessTxs(coordIdxs, blocks[1].L1UserTxs, blocks[1].Batches[1].L1CoordinatorTxs, l2Txs)
 	require.Nil(t, err)
 
 	assert.Equal(t, 2, len(ptOut.ExitInfos)) // 2, as previous batch was without L1UserTxs, and has pending the 'ForceExit(1) A: 5'
 	assert.Equal(t, 1, len(ptOut.CreatedAccounts))
+	assert.Equal(t, 4, len(ptOut.CollectedFees))
+	assert.Equal(t, "0", ptOut.CollectedFees[common.TokenID(0)].String())
+	assert.Equal(t, "0", ptOut.CollectedFees[common.TokenID(1)].String())
+	assert.Equal(t, "0", ptOut.CollectedFees[common.TokenID(2)].String())
+	assert.Equal(t, "0", ptOut.CollectedFees[common.TokenID(3)].String())
 	acc, err = sdb.GetAccount(idxA1)
 	assert.Nil(t, err)
-	assert.Equal(t, "78", acc.Balance.String())
+	assert.Equal(t, "82", acc.Balance.String())
 
 	idxB0 := tc.Users["C"].Accounts[common.TokenID(0)].Idx
 	acc, err = sdb.GetAccount(idxB0)
@@ -108,9 +134,6 @@ func TestProcessTxsSynchronizer(t *testing.T) {
 	assert.Equal(t, "2", acc.Balance.String())
 }
 
-/*
-WIP
-
 func TestProcessTxsBatchBuilder(t *testing.T) {
 	dir, err := ioutil.TempDir("", "tmpdb")
 	require.Nil(t, err)
@@ -119,49 +142,75 @@ func TestProcessTxsBatchBuilder(t *testing.T) {
 	sdb, err := NewStateDB(dir, TypeBatchBuilder, 32)
 	assert.Nil(t, err)
 
-	// generate test transactions from test.SetTest0 code
+	// generate test transactions from test.SetBlockchain0 code
-	tc := til.NewContext()
+	tc := til.NewContext(eth.RollupConstMaxL1UserTx)
-	blocks := tc.GenerateBlocks(til.SetBlockchain0)
+	blocks, err := tc.GenerateBlocks(til.SetBlockchain0)
+	require.Nil(t, err)
 
-	assert.Equal(t, 29, len(blocks[0].Batches[0].L1UserTxs))
+	// Coordinator Idx where to send the fees
-	assert.Equal(t, 0, len(blocks[0].Batches[0].L1CoordinatorTxs))
+	coordIdxs := []common.Idx{256, 257, 258, 259}
-	assert.Equal(t, 21, len(blocks[0].Batches[0].L2Txs))
-	assert.Equal(t, 1, len(blocks[0].Batches[1].L1UserTxs))
-	assert.Equal(t, 1, len(blocks[0].Batches[1].L1CoordinatorTxs))
-	assert.Equal(t, 59, len(blocks[0].Batches[1].L2Txs))
-	assert.Equal(t, 9, len(blocks[0].Batches[2].L1UserTxs))
-	assert.Equal(t, 0, len(blocks[0].Batches[2].L1CoordinatorTxs))
-	assert.Equal(t, 8, len(blocks[0].Batches[2].L2Txs))
 
 	// Idx of user 'A'
 	idxA1 := tc.Users["A"].Accounts[common.TokenID(1)].Idx
 
-	// use first batch
+	// Process the 1st batch, which contains the L1CoordinatorTxs necessary
-	l2Txs := common.L2TxsToPoolL2Txs(blocks[0].Batches[0].L2Txs)
+	// to create the Coordinator accounts to receive the fees
-	_, exitInfos, err := sdb.ProcessTxs(coordIdxs, blocks[0].Batches[0].L1UserTxs, blocks[0].Batches[0].L1CoordinatorTxs, l2Txs)
+	log.Debug("block:0 batch:0, only L1CoordinatorTxs")
+	ptOut, err := sdb.ProcessTxs(nil, nil, blocks[0].Batches[0].L1CoordinatorTxs, nil)
 	require.Nil(t, err)
-	assert.Equal(t, 0, len(exitInfos))
+	// expect 0 at CreatedAccount, as is only computed when StateDB.Type==TypeSynchronizer
+	assert.Equal(t, 0, len(ptOut.CreatedAccounts))
+
+	log.Debug("block:0 batch:1")
+	l2Txs := common.L2TxsToPoolL2Txs(blocks[0].Batches[1].L2Txs)
+	ptOut, err = sdb.ProcessTxs(coordIdxs, blocks[0].L1UserTxs, blocks[0].Batches[1].L1CoordinatorTxs, l2Txs)
+	require.Nil(t, err)
+	assert.Equal(t, 0, len(ptOut.ExitInfos))
+	assert.Equal(t, 0, len(ptOut.CreatedAccounts))
 	acc, err := sdb.GetAccount(idxA1)
-	assert.Nil(t, err)
-	assert.Equal(t, "28", acc.Balance.String())
-
-	// use second batch
-	l2Txs = common.L2TxsToPoolL2Txs(blocks[0].Batches[1].L2Txs)
-	_, exitInfos, err = sdb.ProcessTxs(coordIdxs, blocks[0].Batches[1].L1UserTxs, blocks[0].Batches[1].L1CoordinatorTxs, l2Txs)
 	require.Nil(t, err)
-	assert.Equal(t, 5, len(exitInfos))
+	assert.Equal(t, "50", acc.Balance.String())
-	acc, err = sdb.GetAccount(idxA1)
-	require.Nil(t, err)
-	assert.Equal(t, "48", acc.Balance.String())
 
-	// use third batch
+	log.Debug("block:0 batch:2")
 	l2Txs = common.L2TxsToPoolL2Txs(blocks[0].Batches[2].L2Txs)
-	_, exitInfos, err = sdb.ProcessTxs(coordIdxs, blocks[0].Batches[2].L1UserTxs, blocks[0].Batches[2].L1CoordinatorTxs, l2Txs)
+	ptOut, err = sdb.ProcessTxs(coordIdxs, nil, blocks[0].Batches[2].L1CoordinatorTxs, l2Txs)
+	require.Nil(t, err)
+	assert.Equal(t, 0, len(ptOut.ExitInfos))
+	assert.Equal(t, 0, len(ptOut.CreatedAccounts))
+	acc, err = sdb.GetAccount(idxA1)
+	require.Nil(t, err)
+	assert.Equal(t, "35", acc.Balance.String())
+
+	log.Debug("block:1 batch:0")
+	l2Txs = common.L2TxsToPoolL2Txs(blocks[1].Batches[0].L2Txs)
+	_, err = sdb.ProcessTxs(coordIdxs, nil, blocks[1].Batches[0].L1CoordinatorTxs, l2Txs)
+	require.Nil(t, err)
+	acc, err = sdb.GetAccount(idxA1)
+	require.Nil(t, err)
+	assert.Equal(t, "57", acc.Balance.String())
+
+	log.Debug("block:1 batch:1")
+	l2Txs = common.L2TxsToPoolL2Txs(blocks[1].Batches[1].L2Txs)
+	_, err = sdb.ProcessTxs(coordIdxs, blocks[1].L1UserTxs, blocks[1].Batches[1].L1CoordinatorTxs, l2Txs)
 	require.Nil(t, err)
-	assert.Equal(t, 1, len(exitInfos))
 	acc, err = sdb.GetAccount(idxA1)
 	assert.Nil(t, err)
-	assert.Equal(t, "23", acc.Balance.String())
+	assert.Equal(t, "82", acc.Balance.String())
+
+	idxB0 := tc.Users["C"].Accounts[common.TokenID(0)].Idx
+	acc, err = sdb.GetAccount(idxB0)
+	require.Nil(t, err)
+	assert.Equal(t, "51", acc.Balance.String())
+
+	// get balance of Coordinator account for TokenID==0
+	acc, err = sdb.GetAccount(common.Idx(256))
+	require.Nil(t, err)
+	assert.Equal(t, common.TokenID(0), acc.TokenID)
+	assert.Equal(t, "2", acc.Balance.String())
+	acc, err = sdb.GetAccount(common.Idx(257))
+	require.Nil(t, err)
+	assert.Equal(t, common.TokenID(1), acc.TokenID)
+	assert.Equal(t, "2", acc.Balance.String())
 }
 
 func TestZKInputsGeneration(t *testing.T) {
@@ -172,22 +221,26 @@ func TestZKInputsGeneration(t *testing.T) {
 	sdb, err := NewStateDB(dir, TypeBatchBuilder, 32)
 	assert.Nil(t, err)
 
-	// generate test transactions from test.SetTest0 code
+	// generate test transactions from test.SetBlockchain0 code
-	tc := til.NewContext()
+	tc := til.NewContext(eth.RollupConstMaxL1UserTx)
-	blocks := tc.GenerateBlocks(til.SetBlockchain0)
+	blocks, err := tc.GenerateBlocks(til.SetBlockchain0)
-	assert.Equal(t, 29, len(blocks[0].Batches[0].L1UserTxs))
-	assert.Equal(t, 0, len(blocks[0].Batches[0].L1CoordinatorTxs))
-	assert.Equal(t, 21, len(blocks[0].Batches[0].L2Txs))
-
-	l2Txs := common.L2TxsToPoolL2Txs(blocks[0].Batches[0].L2Txs)
-	zki, _, err := sdb.ProcessTxs(coordIdxs, blocks[0].Batches[0].L1UserTxs, blocks[0].Batches[0].L1CoordinatorTxs, l2Txs)
 	require.Nil(t, err)
 
-	s, err := json.Marshal(zki)
+	// Coordinator Idx where to send the fees
+	coordIdxs := []common.Idx{256, 257, 258, 259}
+
+	log.Debug("block:0 batch:0, only L1CoordinatorTxs")
+	_, err = sdb.ProcessTxs(nil, nil, blocks[0].Batches[0].L1CoordinatorTxs, nil)
 	require.Nil(t, err)
-	debug:=true
+
+	l2Txs := common.L2TxsToPoolL2Txs(blocks[0].Batches[1].L2Txs)
+	ptOut, err := sdb.ProcessTxs(coordIdxs, blocks[0].L1UserTxs, blocks[0].Batches[1].L1CoordinatorTxs, l2Txs)
+	require.Nil(t, err)
+
+	s, err := json.Marshal(ptOut.ZKInputs)
+	require.Nil(t, err)
+	debug := false
 	if debug {
 		fmt.Println(string(s))
 	}
 }
-*/

synchronizer/synchronizer_test.go

@@ -24,6 +24,7 @@ import (
 
 var tokenConsts = map[common.TokenID]eth.ERC20Consts{}
 var forceExits = map[int64][]common.ExitInfo{} // ForgeL1TxsNum -> []exit
+var nonces = map[common.Idx]common.Nonce{}
 
 type timer struct {
 	time int64
@@ -441,6 +442,8 @@ func TestSync(t *testing.T) {
 				tx := &batch.L2Txs[k]
 				tx.Position = position
 				position++
+				nonces[tx.FromIdx]++
+				tx.Nonce = nonces[tx.FromIdx]
 				nTx, err := common.NewL2Tx(tx)
 				require.Nil(t, err)
 				*tx = *nTx

test/til/sets.go

@@ -10,6 +10,8 @@ AddToken(1)
 AddToken(2)
 AddToken(3)
 
+// block:0 batch:0
+
 // Coordinator accounts, Idxs: 256, 257, 258, 259
 CreateAccountCoordinator(0) Coord
 CreateAccountCoordinator(1) Coord
@@ -17,11 +19,12 @@ CreateAccountCoordinator(2) Coord
 CreateAccountCoordinator(3) Coord
 
 > batch
+// block:0 batch:1
 
 // deposits TokenID: 1
 CreateAccountDeposit(1) A: 50
 CreateAccountDeposit(1) B: 5
-CreateAccountDeposit(1) C: 20
+CreateAccountDeposit(1) C: 200
 CreateAccountDeposit(1) D: 25
 CreateAccountDeposit(1) E: 25
 CreateAccountDeposit(1) F: 25
@@ -55,6 +58,7 @@ CreateAccountDeposit(0) B: 10000
 CreateAccountDeposit(0) C: 1
 
 > batchL1
+// block:0 batch:2
 
 // transactions TokenID: 1
 Transfer(1) A-B: 5 (1)
@@ -63,7 +67,7 @@ Transfer(1) A-M: 5 (1)
 Transfer(1) A-N: 5 (1)
 Transfer(1) A-O: 5 (1)
 Transfer(1) B-C: 3 (1)
-Transfer(1) C-A: 3 (255)
+Transfer(1) C-A: 10 (200)
 Transfer(1) D-A: 5 (1)
 Transfer(1) D-Z: 5 (1)
 Transfer(1) D-Y: 5 (1)
@@ -82,9 +86,15 @@ Transfer(0) B-C: 50 (192)
 
 > batchL1
 > block
+
+// block:1 batch:0
+
 // A (3) still does not exist, coordinator should create new L1Tx to create the account
 CreateAccountCoordinator(3) A
 
+Transfer(1) A-B: 1 (1)
+Transfer(1) A-B: 1 (1)
+Transfer(1) A-B: 1 (1)
 Transfer(3) B-A: 5 (1)
 Transfer(2) A-B: 5 (1)
 Transfer(1) I-K: 3 (1)
@@ -132,7 +142,7 @@ Transfer(1) W-J: 3 (1)
 Transfer(1) W-A: 5 (1)
 Transfer(1) W-Z: 5 (1)
 Transfer(1) X-B: 5 (1)
-Transfer(1) X-C: 5 (50)
+Transfer(1) X-C: 10 (200)
 Transfer(1) X-D: 5 (1)
 Transfer(1) X-E: 5 (1)
 Transfer(1) Y-B: 5 (1)
@@ -148,6 +158,7 @@ Exit(1) Y: 5 (1)
 Exit(1) Z: 5 (1)
 
 > batch
+// block:1 batch:1
 
 Deposit(1) A: 50
 Deposit(1) B: 5

test/til/txs.go

@@ -385,7 +385,10 @@ func (tc *Context) setIdxs() error {
 			}
 		}
 		tc.Users[testTx.fromIdxName].Accounts[testTx.tokenID].Nonce++
-		testTx.L2Tx.Nonce = tc.Users[testTx.fromIdxName].Accounts[testTx.tokenID].Nonce
+		// next line is commented to avoid Blockchain L2Txs to have
+		// Nonce different from 0, as from Blockchain those
+		// transactions will come without Nonce
+		// testTx.L2Tx.Nonce = tc.Users[testTx.fromIdxName].Accounts[testTx.tokenID].Nonce
 
 		// set real Idx
 		testTx.L2Tx.FromIdx = tc.Users[testTx.fromIdxName].Accounts[testTx.tokenID].Idx

test/til/txs_test.go

@@ -110,36 +110,36 @@ func TestGenerateBlocks(t *testing.T) {
 	// // #4: CreateAccountDeposit(1) D: 5
 	tc.checkL1TxParams(t, blocks[0].L1UserTxs[4], common.TxTypeCreateAccountDeposit, 1, "D", "", big.NewInt(5), nil)
 	// #5: Transfer(1) A-B: 6 (1)
-	tc.checkL2TxParams(t, blocks[0].Batches[2].L2Txs[0], common.TxTypeTransfer, 1, "A", "B", big.NewInt(6), common.BatchNum(3), common.Nonce(1))
+	tc.checkL2TxParams(t, blocks[0].Batches[2].L2Txs[0], common.TxTypeTransfer, 1, "A", "B", big.NewInt(6), common.BatchNum(3))
 	// #6: Transfer(1) B-D: 3 (1)
-	tc.checkL2TxParams(t, blocks[0].Batches[2].L2Txs[1], common.TxTypeTransfer, 1, "B", "D", big.NewInt(3), common.BatchNum(3), common.Nonce(1))
+	tc.checkL2TxParams(t, blocks[0].Batches[2].L2Txs[1], common.TxTypeTransfer, 1, "B", "D", big.NewInt(3), common.BatchNum(3))
 	// #7: Transfer(1) A-D: 1 (1)
-	tc.checkL2TxParams(t, blocks[0].Batches[2].L2Txs[2], common.TxTypeTransfer, 1, "A", "D", big.NewInt(1), common.BatchNum(3), common.Nonce(2))
+	tc.checkL2TxParams(t, blocks[0].Batches[2].L2Txs[2], common.TxTypeTransfer, 1, "A", "D", big.NewInt(1), common.BatchNum(3))
 	// change of Batch
 	// #8: CreateAccountDepositTransfer(1) F-A: 15, 10 (3)
 	tc.checkL1TxParams(t, blocks[0].L1UserTxs[5], common.TxTypeCreateAccountDepositTransfer, 1, "F", "A", big.NewInt(15), big.NewInt(10))
 	// #9: DepositTransfer(1) A-B: 15, 10 (1)
 	tc.checkL1TxParams(t, blocks[0].L1UserTxs[6], common.TxTypeDepositTransfer, 1, "A", "B", big.NewInt(15), big.NewInt(10))
 	// #11: Transfer(1) C-A : 3 (1)
-	tc.checkL2TxParams(t, blocks[0].Batches[3].L2Txs[0], common.TxTypeTransfer, 1, "C", "A", big.NewInt(3), common.BatchNum(4), common.Nonce(1))
+	tc.checkL2TxParams(t, blocks[0].Batches[3].L2Txs[0], common.TxTypeTransfer, 1, "C", "A", big.NewInt(3), common.BatchNum(4))
 	// #12: Transfer(2) A-B: 15 (1)
-	tc.checkL2TxParams(t, blocks[0].Batches[3].L2Txs[1], common.TxTypeTransfer, 2, "A", "B", big.NewInt(15), common.BatchNum(4), common.Nonce(1))
+	tc.checkL2TxParams(t, blocks[0].Batches[3].L2Txs[1], common.TxTypeTransfer, 2, "A", "B", big.NewInt(15), common.BatchNum(4))
 	// #13: Deposit(1) User0: 20
 	tc.checkL1TxParams(t, blocks[0].L1UserTxs[7], common.TxTypeCreateAccountDeposit, 1, "User0", "", big.NewInt(20), nil)
 	// // #14: Deposit(3) User1: 20
 	tc.checkL1TxParams(t, blocks[0].L1UserTxs[8], common.TxTypeCreateAccountDeposit, 3, "User1", "", big.NewInt(20), nil)
 	// #15: Transfer(1) User0-User1: 15 (1)
-	tc.checkL2TxParams(t, blocks[0].Batches[4].L2Txs[0], common.TxTypeTransfer, 1, "User0", "User1", big.NewInt(15), common.BatchNum(5), common.Nonce(1))
+	tc.checkL2TxParams(t, blocks[0].Batches[4].L2Txs[0], common.TxTypeTransfer, 1, "User0", "User1", big.NewInt(15), common.BatchNum(5))
 	// #16: Transfer(3) User1-User0: 15 (1)
-	tc.checkL2TxParams(t, blocks[0].Batches[4].L2Txs[1], common.TxTypeTransfer, 3, "User1", "User0", big.NewInt(15), common.BatchNum(5), common.Nonce(1))
+	tc.checkL2TxParams(t, blocks[0].Batches[4].L2Txs[1], common.TxTypeTransfer, 3, "User1", "User0", big.NewInt(15), common.BatchNum(5))
 	// #17: Transfer(1) A-C: 1 (1)
-	tc.checkL2TxParams(t, blocks[0].Batches[4].L2Txs[2], common.TxTypeTransfer, 1, "A", "C", big.NewInt(1), common.BatchNum(5), common.Nonce(4))
+	tc.checkL2TxParams(t, blocks[0].Batches[4].L2Txs[2], common.TxTypeTransfer, 1, "A", "C", big.NewInt(1), common.BatchNum(5))
 	// change of Batch
 	// #18: Transfer(1) User1-User0: 1 (1)
-	tc.checkL2TxParams(t, blocks[1].Batches[0].L2Txs[0], common.TxTypeTransfer, 1, "User1", "User0", big.NewInt(1), common.BatchNum(6), common.Nonce(1))
+	tc.checkL2TxParams(t, blocks[1].Batches[0].L2Txs[0], common.TxTypeTransfer, 1, "User1", "User0", big.NewInt(1), common.BatchNum(6))
 	// change of Block (implies also a change of batch)
 	// #19: Transfer(1) A-B: 1 (1)
-	tc.checkL2TxParams(t, blocks[1].Batches[0].L2Txs[1], common.TxTypeTransfer, 1, "A", "B", big.NewInt(1), common.BatchNum(6), common.Nonce(5))
+	tc.checkL2TxParams(t, blocks[1].Batches[0].L2Txs[1], common.TxTypeTransfer, 1, "A", "B", big.NewInt(1), common.BatchNum(6))
 }
 
 func (tc *Context) checkL1TxParams(t *testing.T, tx common.L1Tx, typ common.TxType, tokenID common.TokenID, from, to string, loadAmount, amount *big.Int) {
@@ -160,7 +160,7 @@ func (tc *Context) checkL1TxParams(t *testing.T, tx common.L1Tx, typ common.TxTy
 	}
 }
 
-func (tc *Context) checkL2TxParams(t *testing.T, tx common.L2Tx, typ common.TxType, tokenID common.TokenID, from, to string, amount *big.Int, batchNum common.BatchNum, nonce common.Nonce) {
+func (tc *Context) checkL2TxParams(t *testing.T, tx common.L2Tx, typ common.TxType, tokenID common.TokenID, from, to string, amount *big.Int, batchNum common.BatchNum) {
 	assert.Equal(t, typ, tx.Type)
 	assert.Equal(t, tc.Users[from].Accounts[tokenID].Idx, tx.FromIdx)
 	if tx.Type != common.TxTypeExit {
@@ -170,7 +170,6 @@ func (tc *Context) checkL2TxParams(t *testing.T, tx common.L2Tx, typ common.TxTy
 		assert.Equal(t, amount, tx.Amount)
 	}
 	assert.Equal(t, batchNum, tx.BatchNum)
-	assert.Equal(t, nonce, tx.Nonce)
 }
 
 func TestGeneratePoolL2Txs(t *testing.T) {