From 6bba367f8b966185f5c56c443887e98c985e58f1 Mon Sep 17 00:00:00 2001
From: crStiv <cryptostiv7@gmail.com>
Date: Fri, 7 Feb 2025 17:22:49 +0100
Subject: [PATCH] Create database_test.go

---
 triedb/hashdb/database_test.go | 36 ++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 triedb/hashdb/database_test.go

diff --git a/triedb/hashdb/database_test.go b/triedb/hashdb/database_test.go
new file mode 100644
index 0000000000..5d3b9efbae
--- /dev/null
+++ b/triedb/hashdb/database_test.go
@@ -0,0 +1,36 @@
+package hashdb
+
+import (
+	"testing"
+
+	"github.com/ethereum/go-ethereum/common"
+	"github.com/ethereum/go-ethereum/triedb/rawdb"
+)
+
+func TestCleanerDelete(t *testing.T) {
+	// Create a new database with clean cache enabled
+	db := New(rawdb.NewMemoryDatabase(), &Config{CleanCacheSize: 256 * 1024})
+	defer db.Close()
+	
+	// Create a test node and add it to clean cache
+	hash := common.HexToHash("0x1234")
+	testData := []byte("test data")
+	db.cleans.Set(hash[:], testData)
+	
+	// Create cleaner and delete the node
+	c := &cleaner{db: db}
+	if err := c.Delete(hash[:]); err != nil {
+		t.Fatalf("failed to delete node: %v", err)
+	}
+	
+	// Verify node was deleted from clean cache
+	if data := db.cleans.Get(nil, hash[:]); data != nil {
+		t.Error("node was not deleted from clean cache")
+	}
+	
+	// Test delete with nil clean cache
+	db.cleans = nil
+	if err := c.Delete(hash[:]); err != nil {
+		t.Fatalf("failed to handle nil clean cache: %v", err)
+	}
+}