public void testAuthReversal()
        {
            AuthReversal authreversal = new AuthReversal();
            authreversal.LitleTxnId = 12345678000;
            authreversal.Amount = 106;
            authreversal.PayPalNotes = "Notes";

            batchRequest.AddAuthReversal(authreversal);

            Assert.AreEqual(1, batchRequest.GetNumAuthReversal());
            Assert.AreEqual(authreversal.Amount, batchRequest.GetSumOfAuthReversal());

            mockLitleFile.Verify(litleFile => litleFile.CreateRandomFile(It.IsAny<String>(), It.IsAny<String>(), It.IsAny<String>(), mockLitleTime.Object));
            mockLitleFile.Verify(litleFile => litleFile.AppendLineToFile(mockFilePath, authreversal.Serialize()));
        }