TxSel integrated with L2DB, Add L1CoordTx creation

- GetL2TxSelection & GetL1L2TxSelection integrated with dbs
- Create L1CoordinatorTx of type CreateAccountDeposit when a L2
requires it (and the AccountCreationAuth exists)

test/l2db.go

@@ -0,0 +1,13 @@
+package test
+
+import "github.com/jmoiron/sqlx"
+
+// CleanL2DB deletes 'tx_pool' and 'account_creation_auth' from the given DB
+func CleanL2DB(db *sqlx.DB) {
+	if _, err := db.Exec("DELETE FROM tx_pool"); err != nil {
+		panic(err)
+	}
+	if _, err := db.Exec("DELETE FROM account_creation_auth"); err != nil {
+		panic(err)
+	}
+}

test/txs.go

@@ -63,7 +63,7 @@ func GenerateTestTxs(t *testing.T, instructions Instructions) ([][]*common.L1Tx,
 	var coordinatorL1Txs [][]*common.L1Tx
 	var poolL2Txs [][]*common.PoolL2Tx
 	idx := 1
-	for _, inst := range instructions.Instructions {
+	for i, inst := range instructions.Instructions {
 		switch inst.Type {
 		case common.TxTypeCreateAccountDeposit:
 			tx := common.L1Tx{
@@ -98,7 +98,7 @@ func GenerateTestTxs(t *testing.T, instructions Instructions) ([][]*common.L1Tx,
 			}
 
 			tx := common.PoolL2Tx{
-				// TxID: nil,
+				TxID:        common.TxID([]byte{byte(i)}), // TODO this is for the moment, once TxID Hash is implemented use it
 				FromIdx:     accounts[idxTokenIDToString(inst.From, inst.TokenID)].Idx,
 				ToIdx:       accounts[idxTokenIDToString(inst.To, inst.TokenID)].Idx,
 				ToEthAddr:   accounts[idxTokenIDToString(inst.To, inst.TokenID)].Addr,
@@ -109,7 +109,7 @@ func GenerateTestTxs(t *testing.T, instructions Instructions) ([][]*common.L1Tx,
 				Nonce:       accounts[idxTokenIDToString(inst.From, inst.TokenID)].Nonce,
 				State:       common.PoolL2TxStatePending,
 				Timestamp:   time.Now(),
-				BatchNum:    0,
+				BatchNum:    common.BatchNum(0),
 				RqToEthAddr: accounts[idxTokenIDToString(inst.To, inst.TokenID)].Addr,
 				RqToBJJ:     accounts[idxTokenIDToString(inst.To, inst.TokenID)].BJJ.Public(),
 				Type:        common.TxTypeTransfer,