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 FailedCallToShoppingCartRepository_ShowsAlert() { var alertCalled = false; var shoppingCartRepository = new MockShoppingCartRepository(); shoppingCartRepository.GetShoppingCartAsyncDelegate = () => { throw new Exception(); }; var alertMessageService = new MockAlertMessageService(); alertMessageService.ShowAsyncDelegate = (s, s1) => { alertCalled = true; Assert.AreEqual("ErrorServiceUnreachable", s1); return Task.FromResult(string.Empty); }; var accountService = new MockAccountService(); accountService.VerifyUserAuthenticationAsyncDelegate = () => Task.FromResult((UserInfo)null); var target = new ShoppingCartTabUserControlViewModel(shoppingCartRepository, null, alertMessageService, new MockResourceLoader(), accountService); Assert.IsTrue(alertCalled); }