fix: 127. Convert warning to error if L1InfoTreeUpdateV2 doesnt pass …

…sanity check (#128)

state/entities/l1_info_tree_leaf.go

@@ -1,6 +1,7 @@
 package entities
 
 import (
+	"fmt"
 	"time"
 
 	"github.com/ethereum/go-ethereum/common"
@@ -16,3 +17,16 @@ type L1InfoTreeLeaf struct {
 	RollupExitRoot    common.Hash
 	GlobalExitRoot    common.Hash
 }
+
+func (l *L1InfoTreeLeaf) String() string {
+
+	if l == nil {
+		return "nil"
+	}
+	return fmt.Sprintf("L1InfoTreeRoot:%s L1InfoTreeIndex:%d PreviousBlockHash:%s "+
+		"BlockNumber:%d Timestamp:%s MainnetExitRoot:%s RollupExitRoot:%s GlobalExitRoot:%s",
+		l.L1InfoTreeRoot.String(), l.L1InfoTreeIndex, l.PreviousBlockHash.String(),
+		l.BlockNumber, l.Timestamp.String(), l.MainnetExitRoot.String(),
+		l.RollupExitRoot.String(), l.GlobalExitRoot.String())
+
+}