public void testAddPhysicalCheckCredit() { physicalCheckCredit physicalCheckCredit = new physicalCheckCredit(); physicalCheckCredit.fundingSubmerchantId = "123456"; physicalCheckCredit.fundsTransferId = "123467"; physicalCheckCredit.amount = 107L; batchRequest.addPhysicalCheckCredit(physicalCheckCredit); Assert.AreEqual(1, batchRequest.getNumPhysicalCheckCredit()); Assert.AreEqual(107L, batchRequest.getPhysicalCheckCreditAmount()); mockLitleFile.Verify(litleFile => litleFile.createRandomFile(It.IsAny<String>(), It.IsAny<String>(), It.IsAny<String>(), mockLitleTime.Object)); mockLitleFile.Verify(litleFile => litleFile.AppendLineToFile(mockFilePath, physicalCheckCredit.Serialize())); }