public async Task TransactionsInqTerminalRetrievalFromCache_AvailableInCache()
        {
            try
            {
                string id = "10006144";

                IOptions <Settings> appSettings = Substitute.For <IOptions <Settings> >();
                ITransactionsInqTerminalInfoRepository mockRepo = Substitute.For <ITransactionsInqTerminalInfoRepository>();

                IDistributedCache mockCache = FakeCache();
                mockCache = new MockCachTransactionsInqTerminalInfo();
                ITransactionsInquiryTerminalInfoApi terminalinfo = new TransactionsInquiryTerminalInfoApi(appSettings, mockRepo);

                var cacheRetrievedData
                    = new Operation(mockCache).RetrieveCache(id.ToString(), new Wp.CIS.LynkSystems.Model.TransactionsInquiryGeneralInfo());

                Assert.NotNull(cacheRetrievedData);
                //since no data in cache, now get data from DB
                TransactionsInquiryTerminalInfoController controller = new TransactionsInquiryTerminalInfoController(mockCache, terminalinfo, null);

                var terminaldata = await controller.Get(id);

                var actualRecord       = ((Microsoft.AspNetCore.Mvc.ObjectResult)terminaldata).Value;
                var cacheretrieveddata = new Operation(mockCache).RetrieveCache(id.ToString(), new Wp.CIS.LynkSystems.Model.TransactionsInquiryGeneralInfo());
                Assert.Equal(((Wp.CIS.LynkSystems.Model.TransactionsInquiryGeneralInfo)actualRecord).terminalNbr.ToString(), "10006144");

                Assert.Equal(JsonConvert.SerializeObject(actualRecord), JsonConvert.SerializeObject(cacheretrieveddata));
            }
            catch (System.Exception exc)
            {
                string msg = exc.Message.ToString();
            }
        }
        public async Task TransactionsInqTerminalRetrievalFromCache_NotAvailableInCache()
        {
            string id = "10006143";
            IOptions <Settings> appSettings = Substitute.For <IOptions <Settings> >();
            ITransactionsInqTerminalInfoRepository mockRepo = Substitute.For <ITransactionsInqTerminalInfoRepository>();

            //var mockRepo = new MockTransactionsInqTerminalInfoRepository();
            mockRepo = new MockTransactionsInqTerminalInfoRepository();

            IDistributedCache mockCache = FakeCache();

            mockCache = new MockCachTransactionsInqTerminalInfo();
            ITransactionsInquiryTerminalInfoApi terminalinfo = new TransactionsInquiryTerminalInfoApi(appSettings, mockRepo);

            //Retrieving from Cache first.
            var cacheRetrievedData
                = new Operation(mockCache).RetrieveCache(id.ToString(), new Wp.CIS.LynkSystems.Model.TransactionsInquiryGeneralInfo());

            //Does not exist in mock Cache. Hence null
            Assert.Equal(cacheRetrievedData, null);

            //since no data in cache, now call the controller. The controller retrieves data and also adds to cache
            TransactionsInquiryTerminalInfoController controller = new TransactionsInquiryTerminalInfoController(mockCache, terminalinfo, null);

            //Retrieve the data from controller and also check for the data in the cache.
            var terminaldata = await controller.Get(id);


            var actualRecord = ((Microsoft.AspNetCore.Mvc.ObjectResult)terminaldata).Value;

            //var cacheretrieveddata = new Operation(mockCache).RetrieveCache(id.ToString(), new Wp.CIS.LynkSystems.Model.TransactionsInquiryGeneralInfo());

            // Check the retrieved data
            Assert.Equal(((Wp.CIS.LynkSystems.Model.TransactionsInquiryGeneralInfo)actualRecord).terminalNbr.ToString(), "10006143");

            // Make sure the data retrieved from controller is same as the data from the cache
            //Assert.Equal(JsonConvert.SerializeObject(actualRecord), JsonConvert.SerializeObject(cacheretrieveddata));
        }