db manager

tests/snapshot_test.go

@@ -22,10 +22,10 @@ func TestSnapshotInterval(t *testing.T) {
 		t.Fatalf("failed to migrate: %v", err)
 	}
 
+	manager := dbManager{db}
+
 	storage := store.NewGormStorage(
-		func() *gorm.DB {
-			return db
-		},
+		&manager,
 	)
 
 	// --- Service with snapshot interval = 3 ---