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("1", NavigationMode.New, null);
Assert.IsTrue(alertCalled);
}
public void OnNavigatedTo_Fill_Items_And_SelectedProduct()
{
var repository = new MockProductCatalogRepository();
repository.GetProductAsyncDelegate = (productNumber) =>
{
Product product = null;
if (productNumber == "1")
{
product = new Product {
ProductNumber = productNumber, SubcategoryId = 1
};
}
return(Task.FromResult(product));
};
repository.GetProductsAsyncDelegate = (subCategoryId) =>
{
ICollection <Product> products = null;
if (subCategoryId == 1)
{
products = new Collection <Product>(new List <Product>
{
new Product()
{
ProductNumber = "1", ImageUri = new Uri("http://image")
},
new Product()
{
ProductNumber = "2", ImageUri = new Uri("http://image")
},
new Product()
{
ProductNumber = "3", ImageUri = new Uri("http://image")
}
});
}
return(Task.FromResult(products));
};
var secondaryTileService = new MockSecondaryTileService()
{
SecondaryTileExistsDelegate = s => false
};
var target = new ItemDetailPageViewModel(repository, new MockShoppingCartRepository(), null, null, secondaryTileService);
target.OnNavigatedTo(new NavigatedToEventArgs {
Parameter = "1", NavigationMode = NavigationMode.New
}, null);
Assert.IsNotNull(target.Items);
Assert.AreEqual(3, ((IReadOnlyCollection <ProductViewModel>)target.Items).Count);
Assert.AreEqual(target.Items.First(), target.SelectedProduct);
}