public async Task Post_ReturnsCreatedResult_WhenFormIsValid()
        {
            var mockService = new Mock <ITokenCosmosDBService>();

            mockService.Setup(x => x.AddCustomerDetails(It.IsAny <CustomerDetails>())).Returns(Task.FromResult(1));

            var controller = new CustomerTokenDashboardController(mockService.Object);

            var customerDetails = new CustomerDetails
            {
                Name          = "Raji",
                AccountNumber = 123456,
                Age           = 30,
                CustomerType  = "Guest",
                ServiceType   = ServiceType.BankTransaction,
                SocialNumber  = "111111"
            };

            // Act
            var actual = await controller.Post(customerDetails) as ObjectResult;

            // Asset
            Assert.AreEqual(StatusCodes.Status201Created, actual.StatusCode);
            Assert.AreEqual(1, actual.Value);
        }
        public async Task Post_ReturnsBadRequestResult_WhenFormIsInValid()
        {
            var mockService = new Mock <ITokenCosmosDBService>();

            mockService.Setup(x => x.AddCustomerDetails(It.IsAny <CustomerDetails>())).Returns(Task.FromResult(1));

            var controller = new CustomerTokenDashboardController(mockService.Object);

            controller.ModelState.AddModelError("ServiceType", "Required");

            var customerDetails = new CustomerDetails
            {
                Name = "Raji"
            };

            // Act
            var actual = await controller.Post(customerDetails) as ObjectResult;

            // Asset
            Assert.AreEqual(StatusCodes.Status400BadRequest, actual.StatusCode);
        }