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[sgf]

The test is too simplistic. After all, the scenarios in which transactions are applicable are a minority

Single-process multi-threaded testing is also important.

and litedb also has transactions in V5

using (var db = new LiteDatabase("mydb.db"))
{
   db.BeginTrans();
   try
   {
       // do things
       db.Commit();
   }
   catch (Exception)
   {
       db.Rollback();
       throw;
   }
}