public void OnNavigatedTo_Fill_Items_And_Title()
{
var repository = new MockProductCatalogRepository();
var navigationService = new MockNavigationService();
var searchPaneService = new MockSearchPaneService();
repository.GetCategoryAsyncDelegate = (categoryId) =>
{
Category category = null;
if (categoryId == 1)
{
category = new Category { Id = categoryId, Title = "CategoryTitle" };
}
return Task.FromResult(category);
};
repository.GetSubcategoriesAsyncDelegate = (categoryId) =>
{
ReadOnlyCollection<Category> categories = null;
if (categoryId == 1)
{
categories = new ReadOnlyCollection<Category>(new List<Category>
{
new Category(),
new Category(),
new Category()
});
}
return Task.FromResult(categories);
};
var viewModel = new GroupDetailPageViewModel(repository, navigationService, null, null, searchPaneService);
viewModel.OnNavigatedTo(1, NavigationMode.New, null);
Assert.IsNotNull(viewModel.Items);
Assert.AreEqual(3, ((ICollection<CategoryViewModel>)viewModel.Items).Count);
Assert.AreEqual("CategoryTitle", viewModel.Title);
}
public void OnNavigatedTo_When_Service_Not_Available_Then_Pops_Alert()
{
var repository = new MockProductCatalogRepository();
var navigationService = new MockNavigationService();
var alertService = new MockAlertMessageService();
var resourceLoader = new MockResourceLoader();
bool alertCalled = false;
repository.GetSubcategoriesAsyncDelegate = (categoryId) =>
{
throw new HttpRequestException();
};
repository.GetCategoriesAsyncDelegate = (categoryId) =>
{
throw new HttpRequestException();
};
alertService.ShowAsyncDelegate = (msg, title) =>
{
alertCalled = true;
return Task.FromResult(string.Empty);
};
var viewModel = new GroupDetailPageViewModel(repository, navigationService, alertService, resourceLoader, new MockSearchPaneService());
viewModel.OnNavigatedTo("1", NavigationMode.New, null);
Assert.IsTrue(alertCalled);
}
public void ProductNav_With_Null_Parameter_Does_Not_Navigate()
{
var repository = new MockProductCatalogRepository();
var navigationService = new MockNavigationService();
navigationService.NavigateDelegate = (pageName, categoryId) =>
{
Assert.Fail();
return false;
};
var viewModel = new GroupDetailPageViewModel(repository, navigationService, null, null, null);
viewModel.ProductNavigationAction.Invoke(null);
}
public void GoBack_When_CanGoBack_Is_True()
{
var repository = new MockProductCatalogRepository();
var navigationService = new MockNavigationService();
navigationService.CanGoBackDelegate = () => true;
navigationService.GoBackDelegate = () => Assert.IsTrue(true);
var viewModel = new GroupDetailPageViewModel(repository, navigationService, null, null, null);
bool canExecute = viewModel.GoBackCommand.CanExecute();
if (canExecute) viewModel.GoBackCommand.Execute();
}
public void ProductNav_With_Valid_Parameter()
{
var repository = new MockProductCatalogRepository();
var navigationService = new MockNavigationService();
var productToNavigate = new ProductViewModel(new Product()
{
ListPrice = 100,
ProductNumber = "p1",
ImageUri = new Uri("http://image"),
Currency = "USD",
Title = "My Title",
Description = "My Description",
});
navigationService.NavigateDelegate = (pageName, productNumber) =>
{
Assert.AreEqual("ItemDetail", pageName);
Assert.AreEqual(productToNavigate.ProductNumber, productNumber);
return true;
};
var viewModel = new GroupDetailPageViewModel(repository, navigationService, null, null, null);
viewModel.ProductNavigationAction.Invoke(productToNavigate);
}