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())); }