public void Transaction_GetInternalTransaction_Test() { using (var cmd = new DatabaseCommand(_connection)) { cmd.Log = Console.WriteLine; cmd.CommandText.AppendLine(" DELETE FROM EMP "); var trans1 = DataExtensions.GetTransaction(_connection); var trans2A = cmd.TransactionBegin(); var trans2B = DataExtensions.GetTransaction(_connection); cmd.ExecuteNonQuery(); cmd.TransactionRollback(); var trans3 = DataExtensions.GetTransaction(_connection); Assert.AreEqual(EMP.GetEmployeesCount(_connection), 14); Assert.AreEqual(null, trans1); Assert.AreEqual(trans2A, trans2B); Assert.AreEqual(null, trans3); } }