public void testEcheckCredit() { echeckCredit echeckcredit = new echeckCredit(); echeckcredit.amount = 12; echeckcredit.litleTxnId = 123456789101112; batchRequest.addEcheckCredit(echeckcredit); Assert.AreEqual(1, batchRequest.getNumEcheckCredit()); Assert.AreEqual(echeckcredit.amount, batchRequest.getSumOfEcheckCredit()); mockLitleFile.Verify(litleFile => litleFile.createRandomFile(It.IsAny<String>(), It.IsAny<String>(), It.IsAny<String>(), mockLitleTime.Object)); mockLitleFile.Verify(litleFile => litleFile.AppendLineToFile(mockFilePath, echeckcredit.Serialize())); }