public void CanCountTransactionEntries()
{
//arrange
_txn = _env.BeginTransaction();
var db = _txn.OpenDatabase(null, new DatabaseOptions { Flags = DatabaseOpenFlags.None });
const int entriesCount = 10;
for (var i = 0; i < entriesCount; i++)
_txn.Put(db, i.ToString(), i.ToString());
//act
var count = _txn.GetEntriesCount(db);
//assert;
Assert.AreEqual(entriesCount, count);
}