public void VMListensToShoppingCartUpdatedEvent_ThenCalculatesTotalNumberOfItemsInCart()
{
var shoppingCart = new ShoppingCart(new List<ShoppingCartItem>());
var shoppingCartRepository = new MockShoppingCartRepository();
shoppingCartRepository.GetShoppingCartAsyncDelegate = () => Task.FromResult(shoppingCart);
var shoppingCartUpdatedEvent = new ShoppingCartUpdatedEvent();
var eventAggregator = new MockEventAggregator();
eventAggregator.GetEventDelegate = type =>
{
if (type == typeof(ShoppingCartUpdatedEvent)) return shoppingCartUpdatedEvent;
if (type == typeof(ShoppingCartItemUpdatedEvent)) return new ShoppingCartItemUpdatedEvent();
return null;
};
var accountService = new MockAccountService();
accountService.VerifyUserAuthenticationAsyncDelegate = () => Task.FromResult((UserInfo)null);
var target = new ShoppingCartTabUserControlViewModel(shoppingCartRepository, eventAggregator, null, null, accountService);
shoppingCart = new ShoppingCart(new List<ShoppingCartItem>()
{
new ShoppingCartItem {Quantity = 1},
new ShoppingCartItem {Quantity = 2}
});
Assert.AreEqual(0, target.ItemCount);
shoppingCartUpdatedEvent.Publish(null);
Assert.AreEqual(3, target.ItemCount);
}
public void ShoppingCartUpdated_WithNullCart_SetsItemCountZero()
{
var shoppingCartRepository = new MockShoppingCartRepository();
var shoppingCart = new ShoppingCart(new List<ShoppingCartItem> {new ShoppingCartItem {Quantity = 99}});
shoppingCartRepository.GetShoppingCartAsyncDelegate = () => Task.FromResult(shoppingCart);
var eventAggregator = new MockEventAggregator();
var shoppingCartUpdatedEvent = new ShoppingCartUpdatedEvent();
eventAggregator.GetEventDelegate = type =>
{
if (type == typeof(ShoppingCartUpdatedEvent)) return shoppingCartUpdatedEvent;
if (type == typeof(ShoppingCartItemUpdatedEvent)) return new ShoppingCartItemUpdatedEvent();
return null;
};
var accountService = new MockAccountService();
accountService.VerifyUserAuthenticationAsyncDelegate = () => Task.FromResult((UserInfo)null);
var target = new ShoppingCartTabUserControlViewModel(shoppingCartRepository, eventAggregator, null, null, accountService);
shoppingCartUpdatedEvent.Publish(null);
Assert.AreEqual(99, target.ItemCount);
shoppingCartRepository.GetShoppingCartAsyncDelegate = () => Task.FromResult<ShoppingCart>(null);
shoppingCartUpdatedEvent.Publish(null);
Assert.AreEqual(0, target.ItemCount);
}
public void OnNavigatedTo_Fill_Properties_With_Shopping_Cart_Items()
{
var navigationService = new MockNavigationService();
var shoppingCartRepository = new MockShoppingCartRepository();
shoppingCartRepository.GetShoppingCartAsyncDelegate = () =>
{
ShoppingCart shoppingCart = null;
var shoppingCartItems = new ObservableCollection<ShoppingCartItem>
{
new ShoppingCartItem() {Product = new Product { ListPrice = 100, DiscountPercentage = 50, ProductNumber = "p1", ImageUri = new Uri("http://image")}, Currency = "USD", Quantity = 1},
new ShoppingCartItem() {Product = new Product { ListPrice = 100, DiscountPercentage = 50, ProductNumber = "p2", ImageUri = new Uri("http://image")}, Currency = "USD", Quantity = 1}
};
shoppingCart = new ShoppingCart(shoppingCartItems) { Currency = "USD"};
return Task.FromResult(shoppingCart);
};
bool signInUserControlOnNavigatedToCalled = false;
var signInUserControlViewModel = new MockSignInUserControlViewModel()
{
OnNavigatedToDelegate = (a, b, c) => signInUserControlOnNavigatedToCalled = true
};
var eventAggregator = new MockEventAggregator();
eventAggregator.GetEventDelegate = type => new MockShoppingCartUpdatedEvent();
var target = new ShoppingCartPageViewModel(shoppingCartRepository, navigationService, new MockAccountService(), signInUserControlViewModel, null, null, null, null, eventAggregator);
target.OnNavigatedTo(new NavigatedToEventArgs { Parameter = null, NavigationMode = NavigationMode.New }, null);
Assert.IsTrue(signInUserControlOnNavigatedToCalled);
Assert.AreEqual("$200.00", target.FullPrice);
Assert.AreEqual("$100.00", target.TotalDiscount);
Assert.AreEqual(2, target.ShoppingCartItemViewModels.Count);
}
public async Task<Order> CreateOrderAsync(string userId, ShoppingCart shoppingCart, Address shippingAddress, Address billingAddress, PaymentMethod paymentMethod, ShippingMethod shippingMethod)
{
Order order = new Order
{
UserId = userId,
ShoppingCart = shoppingCart,
ShippingAddress = shippingAddress,
BillingAddress = billingAddress,
PaymentMethod = paymentMethod,
ShippingMethod = shippingMethod
};
order.Id = await _orderService.CreateOrderAsync(order);
return order;
}
public async Task CreateBasicOrderAsync(string userId, ShoppingCart shoppingCart, Address shippingAddress, Address billingAddress, PaymentMethod paymentMethod)
{
var basicShippingMethod = await _shippingMethodService.GetBasicShippingMethodAsync();
_currentOrder = await CreateOrderAsync(userId, shoppingCart, shippingAddress, billingAddress, paymentMethod, basicShippingMethod);
_sessionStateService.SessionState[OrderKey] = _currentOrder;
}
public Task<Order> CreateOrderAsync(string userId, ShoppingCart shoppingCart, Address shippingAddress, Address billingAddress, PaymentMethod paymentMethod, ShippingMethod shippingMethod)
{
return CreateOrderAsyncDelegate(userId, shoppingCart, shippingAddress, billingAddress, paymentMethod, shippingMethod);
}
public async Task GetShoppingCartAsync_CachesCart()
{
var shoppingCart = new ShoppingCart(new Collection<ShoppingCartItem>());
var shoppingCartService = new MockShoppingCartService()
{
GetShoppingCartAsyncDelegate = s => Task.FromResult(shoppingCart)
};
var target = new ShoppingCartRepository(shoppingCartService, null, null, new MockSessionStateService());
var firstCartReturned = await target.GetShoppingCartAsync();
shoppingCartService.GetShoppingCartAsyncDelegate = s =>
{
Assert.Fail("Should not have called proxy second time.");
return Task.FromResult((ShoppingCart)null);
};
var secondCartReturned = await target.GetShoppingCartAsync();
Assert.AreSame(shoppingCart, firstCartReturned);
Assert.AreSame(shoppingCart, secondCartReturned);
}
public void ShoppingCartUpdated_WhenShoppingCartChanged()
{
var navigationService = new MockNavigationService();
var accountService = new MockAccountService();
var shoppingCartRepository = new MockShoppingCartRepository();
shoppingCartRepository.GetShoppingCartAsyncDelegate = () =>
{
ShoppingCart shoppingCart = new ShoppingCart(new ObservableCollection<ShoppingCartItem>()) { Currency = "USD"};
return Task.FromResult(shoppingCart);
};
bool signInUserControlOnNavigatedToCalled = false;
var signInUserControlViewModel = new MockSignInUserControlViewModel()
{
OnNavigatedToDelegate = (a, b, c) => signInUserControlOnNavigatedToCalled = true
};
var eventAggregator = new MockEventAggregator();
var shoppingCartUpdatedEvent = new ShoppingCartUpdatedEvent();
eventAggregator.GetEventDelegate = type => shoppingCartUpdatedEvent;
var target = new ShoppingCartPageViewModel(shoppingCartRepository, navigationService, accountService, signInUserControlViewModel, null, null, null, null, eventAggregator);
target.OnNavigatedTo(new NavigatedToEventArgs { Parameter = null, NavigationMode = NavigationMode.New }, null);
Assert.AreEqual("$0.00", target.FullPrice);
shoppingCartRepository.GetShoppingCartAsyncDelegate = () =>
{
var shoppingCartItems = new ObservableCollection<ShoppingCartItem>
{
new ShoppingCartItem() { Product = new Product { ListPrice = 100, ProductNumber = "p1", ImageUri = new Uri("http://image")}, Currency = "USD", Quantity = 2},
};
ShoppingCart shoppingCart = new ShoppingCart(new ObservableCollection<ShoppingCartItem>(shoppingCartItems)) { Currency = "USD" };
return Task.FromResult(shoppingCart);
};
shoppingCartUpdatedEvent.Publish(null);
Assert.IsTrue(signInUserControlOnNavigatedToCalled);
Assert.AreEqual("$200.00", target.FullPrice);
}
private async Task UpdateShoppingCartInfoAsync()
{
string errorMessage = string.Empty;
try
{
_shoppingCart = await _shoppingCartRepository.GetShoppingCartAsync();
if (_shoppingCart != null && _shoppingCart.ShoppingCartItems != null)
{
ShoppingCartItemViewModels = new ObservableCollection<ShoppingCartItemViewModel>();
foreach (var item in _shoppingCart.ShoppingCartItems)
{
var shoppingCartItemViewModel = new ShoppingCartItemViewModel(item, _resourceLoader);
shoppingCartItemViewModel.PropertyChanged += ShoppingCartItemViewModel_PropertyChanged;
ShoppingCartItemViewModels.Add(shoppingCartItemViewModel);
}
CheckoutCommand.RaiseCanExecuteChanged();
OnPropertyChanged("FullPrice");
OnPropertyChanged("TotalDiscount");
OnPropertyChanged("TotalPrice");
}
}
catch (Exception ex)
{
errorMessage = string.Format(CultureInfo.CurrentCulture, _resourceLoader.GetString("GeneralServiceErrorMessage"), Environment.NewLine, ex.Message);
}
if (!string.IsNullOrWhiteSpace(errorMessage))
{
await _alertMessageService.ShowAsync(errorMessage, _resourceLoader.GetString("ErrorServiceUnreachable"));
}
}