public void NavigatingToWhenNoShippingMethodSelected_RecalculatesOrder()
        {
            var shippingMethods = new List<ShippingMethod> { new ShippingMethod { Id = 1, Cost = 0 } };
            var shoppingCartItems = new List<ShoppingCartItem> { new ShoppingCartItem { Quantity = 1, Currency = "USD", Product = new Product() } };
            var order = new Order
                {
                ShoppingCart = new ShoppingCart(shoppingCartItems) { Currency = "USD", TotalPrice = 100 },
                ShippingAddress = new Address { Id = "1"},
                BillingAddress = new Address { Id = "1" },
                PaymentMethod = new PaymentMethod() { CardNumber = "1234" },
                ShippingMethod = null
            };
            var shippingMethodService = new MockShippingMethodService
            {
                GetShippingMethodsAsyncDelegate = () => Task.FromResult<IEnumerable<ShippingMethod>>(shippingMethods)
            };
            var orderRepository = new MockOrderRepository { CurrentOrder = order };
            var shoppingCartRepository = new MockShoppingCartRepository
                {
                    GetShoppingCartAsyncDelegate = () => Task.FromResult(order.ShoppingCart)
                };
            var checkoutDataRepository = new MockCheckoutDataRepository();
            checkoutDataRepository.GetShippingAddressAsyncDelegate = s => Task.FromResult(new Address());
            checkoutDataRepository.GetBillingAddressAsyncDelegate = s => Task.FromResult(new Address());
            checkoutDataRepository.GetPaymentMethodDelegate = s => Task.FromResult(new PaymentMethod { CardNumber = "1234" });
            var target = new CheckoutSummaryPageViewModel(new MockNavigationService(), new MockOrderService(), orderRepository, shippingMethodService,
                                                          checkoutDataRepository, shoppingCartRepository,
                                                          new MockAccountService(), new MockResourceLoader(), null, null);

            target.OnNavigatedTo(new NavigatedToEventArgs { Parameter = null, NavigationMode = NavigationMode.New }, null);

            Assert.AreEqual("$0.00", target.ShippingCost);
            Assert.AreEqual("$100.00", target.OrderSubtotal);
            Assert.AreEqual("$100.00", target.GrandTotal);
        }
        public void SelectCheckoutData_Opens_AppBar()
        {
            var shippingMethods = new List<ShippingMethod>() { new ShippingMethod() { Id = 1, Cost = 0 } };
            var shoppingCartItems = new List<ShoppingCartItem>() { new ShoppingCartItem() { Quantity = 1, Currency = "USD", Product = new Product() } };
            var order = new Order()
            {
                ShoppingCart = new ShoppingCart(shoppingCartItems) { Currency = "USD", FullPrice = 100 },
                ShippingAddress = new Address(),
                BillingAddress = new Address(),
                PaymentMethod = new PaymentMethod() { CardNumber = "1234" },
                ShippingMethod = shippingMethods.First()
            };
            var shippingMethodService = new MockShippingMethodService()
            {
                GetShippingMethodsAsyncDelegate = () => Task.FromResult<IEnumerable<ShippingMethod>>(shippingMethods)
            };
            var orderRepository = new MockOrderRepository() { CurrentOrder = order};
            var shoppingCartRepository = new MockShoppingCartRepository();
            shoppingCartRepository.GetShoppingCartAsyncDelegate = () => Task.FromResult(order.ShoppingCart);
            var checkoutDataRepository = new MockCheckoutDataRepository();
            checkoutDataRepository.GetShippingAddressAsyncDelegate = s => Task.FromResult(new Address());
            checkoutDataRepository.GetBillingAddressAsyncDelegate = s => Task.FromResult(new Address());
            checkoutDataRepository.GetPaymentMethodDelegate = s => Task.FromResult(new PaymentMethod { CardNumber = "1234" });
            var target = new CheckoutSummaryPageViewModel(new MockNavigationService(), new MockOrderService(), orderRepository, shippingMethodService,
                                                          checkoutDataRepository, shoppingCartRepository,
                                                          new MockAccountService(), new MockResourceLoader(), null, null);

            target.OnNavigatedTo(new NavigatedToEventArgs { Parameter = null, NavigationMode = NavigationMode.New }, null);
            Assert.IsFalse(target.IsBottomAppBarOpened);

            target.SelectedCheckoutData = target.CheckoutDataViewModels.First();
            Assert.IsTrue(target.IsBottomAppBarOpened);
        }