public void OnNavigatedTo_When_Service_Not_Available_Then_Pops_Alert()
        {
            var repository = new MockProductCatalogRepository();
            var alertService = new MockAlertMessageService();
            var resourceLoader = new MockResourceLoader();

            bool alertCalled = false;
            repository.GetProductAsyncDelegate = (productNumber) =>
                {
                    throw new Exception();
                };

            repository.GetProductsAsyncDelegate = (subCategoryId) =>
                {
                    throw new Exception();
                };

            alertService.ShowAsyncDelegate = (msg, title) =>
                {
                    alertCalled = true;
                    return Task.FromResult(string.Empty);
                };

            var target = new ItemDetailPageViewModel(repository, new MockShoppingCartRepository(), alertService, resourceLoader, null);
            target.OnNavigatedTo(new NavigatedToEventArgs { Parameter = "1", NavigationMode = NavigationMode.New }, null);

            Assert.IsTrue(alertCalled);
        }
 public void FailedCallToProductCatalogRepository_ShowsAlert()
 {
     var alertCalled = false;
     var productCatalogRepository = new MockProductCatalogRepository();
     var navService = new MockNavigationService();
     productCatalogRepository.GetRootCategoriesAsyncDelegate = (maxAmmountOfProducts) =>
     {
         throw new Exception();
     };
     var alertMessageService = new MockAlertMessageService();
     alertMessageService.ShowAsyncDelegate = (s, s1) =>
     {
         alertCalled = true;
         Assert.AreEqual("ErrorServiceUnreachable", s1);
         return Task.FromResult(string.Empty);
     };
     var target = new HubPageViewModel(productCatalogRepository, navService,
                                                          alertMessageService, new MockResourceLoader());
     target.OnNavigatedTo(new NavigatedToEventArgs { Parameter = null, NavigationMode = NavigationMode.New }, null);
     
     Assert.IsTrue(alertCalled);
 }
        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);
        }
        public async Task SubmitInvalidOrder_CallsErrorDialog()
        {
            bool successDialogCalled = false;
            bool errorDialogCalled = false;
            var navigationService = new MockNavigationService();
            var accountService = new MockAccountService()
                {
                    VerifySavedCredentialsAsyncDelegate = () => Task.FromResult<UserInfo>(new UserInfo())
                };
            var orderService = new MockOrderService()
                {
                    // the order is invalid, it cannot be processed
                    ProcessOrderAsyncDelegate = (o) =>
                        {
                            var modelValidationResult = new ModelValidationResult();
                            modelValidationResult.ModelState.Add("someKey", new List<string>() { "the value of someKey is invalid" });
                            throw new ModelValidationException(modelValidationResult);
                        }
                };
            var resourcesService = new MockResourceLoader()
                {
                    GetStringDelegate = (key) => key
                };
            var alertService = new MockAlertMessageService()
                {
                    ShowAsyncDelegate = (dialogTitle, dialogMessage) =>
        {
                        successDialogCalled = dialogTitle.ToLower().Contains("purchased");
                        errorDialogCalled = !successDialogCalled;
                        return Task.FromResult(successDialogCalled);
                    }
                };

            var target = new CheckoutSummaryPageViewModel(navigationService, orderService, null, null, null, null, accountService, resourcesService, alertService, null);
            await target.SubmitCommand.Execute();

            Assert.IsFalse(successDialogCalled);
            Assert.IsTrue(errorDialogCalled);
        }