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.GetCategoryAsyncDelegate = (categoryId) =>
{
throw new Exception();
};
alertService.ShowAsyncDelegate = (msg, title) =>
{
alertCalled = true;
return(Task.FromResult(string.Empty));
};
var viewModel = new GroupDetailPageViewModel(repository, alertService, resourceLoader);
viewModel.OnNavigatedTo(new NavigatedToEventArgs {
Parameter = "1", NavigationMode = NavigationMode.New
}, null);
Assert.IsTrue(alertCalled);
}
public void OnNavigatedTo_Fill_Items_And_Title()
{
var repository = new MockProductCatalogRepository();
repository.GetCategoryAsyncDelegate = (categoryId) =>
{
Category category = null;
if (categoryId == 1)
{
category = new Category {
Id = categoryId,
Title = "CategoryTitle"
};
}
return(Task.FromResult(category));
};
repository.GetProductsAsyncDelegate = i =>
{
ICollection <Product> products = null;
if (i == 1)
{
products = new Collection <Product>(new List <Product>
{
new Product(),
new Product(),
new Product()
});
}
return(Task.FromResult(products));
};
var viewModel = new GroupDetailPageViewModel(repository, null, null);
viewModel.OnNavigatedTo(new NavigatedToEventArgs {
Parameter = 1, NavigationMode = NavigationMode.New
}, null);
Assert.IsNotNull(viewModel.Items);
Assert.AreEqual(3, ((ICollection <ProductViewModel>)viewModel.Items).Count);
Assert.AreEqual("CategoryTitle", viewModel.Title);
}