From b9339ca8473374e6f1585548f26f9b6f0f72028e Mon Sep 17 00:00:00 2001
From: jsvisa <delweng@gmail.com>
Date: Wed, 22 Oct 2025 12:15:39 +0800
Subject: [PATCH] core/state: add debug if accounts mismatch

---
 core/state/state_sizer_test.go | 52 ++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)

diff --git a/core/state/state_sizer_test.go b/core/state/state_sizer_test.go
index cab0c38163..e14319f2ba 100644
--- a/core/state/state_sizer_test.go
+++ b/core/state/state_sizer_test.go
@@ -24,6 +24,7 @@ import (
 	"github.com/ethereum/go-ethereum/core/rawdb"
 	"github.com/ethereum/go-ethereum/core/tracing"
 	"github.com/ethereum/go-ethereum/core/types"
+	"github.com/ethereum/go-ethereum/crypto"
 	"github.com/ethereum/go-ethereum/triedb"
 	"github.com/ethereum/go-ethereum/triedb/pathdb"
 	"github.com/holiman/uint256"
@@ -119,6 +120,57 @@ func TestSizeTracker(t *testing.T) {
 	}
 	baseline := baselineResult.stat
 
+	// DEBUG: Check if baseline found all expected accounts
+	if baseline.Accounts != 52 {
+		t.Logf("WARNING: Baseline found %d accounts instead of expected 52", baseline.Accounts)
+
+		// Collect all expected account addresses
+		expectedAddrs := make(map[common.Address]bool)
+		expectedAddrs[addr1] = true
+		expectedAddrs[addr2] = true
+		expectedAddrs[addr3] = true
+		for i := 1; i < 50; i++ {
+			testAddr := common.BigToAddress(uint256.NewInt(uint64(i + 100)).ToBig())
+			expectedAddrs[testAddr] = true
+		}
+
+		// Scan what's actually in the snapshot
+		actualAddrs := make(map[common.Address]bool)
+		iter := db.NewIterator(rawdb.SnapshotAccountPrefix, nil)
+		for iter.Next() {
+			// Key is: prefix + account hash
+			if len(iter.Key()) < len(rawdb.SnapshotAccountPrefix)+common.HashLength {
+				continue
+			}
+			accHash := common.BytesToHash(iter.Key()[len(rawdb.SnapshotAccountPrefix):])
+
+			// Find which address this hash corresponds to
+			for addr := range expectedAddrs {
+				if crypto.Keccak256Hash(addr.Bytes()) == accHash {
+					actualAddrs[addr] = true
+					break
+				}
+			}
+		}
+		iter.Release()
+
+		t.Logf("Serial scan found %d accounts in snapshot", len(actualAddrs))
+
+		// Find missing accounts
+		for addr := range expectedAddrs {
+			if !actualAddrs[addr] {
+				t.Logf("MISSING ACCOUNT: %s (hash: %s)", addr.Hex(), crypto.Keccak256Hash(addr.Bytes()).Hex())
+			}
+		}
+
+		// Find unexpected accounts
+		for addr := range actualAddrs {
+			if !expectedAddrs[addr] {
+				t.Logf("UNEXPECTED ACCOUNT: %s (hash: %s)", addr.Hex(), crypto.Keccak256Hash(addr.Bytes()).Hex())
+			}
+		}
+	}
+
 	// Now start the tracker and notify it of updates that happen AFTER the baseline
 	tracker, err := NewSizeTracker(db, tdb)
 	if err != nil {