public Cart(int userId)
{
InitializeComponent();
vm = new CartViewModel();
vm.FetcyByUserAsync(userId);
_total = vm.TotalPrice(userId);
BindingContext = vm;
this.totalPrice.Text = "Total price: $ " + _total;
}
public void CartViewModels_TotalPrice_Returns_CorrectValues()
{
//Arrange
CartViewModel cartViewModel = _cartViewModel;
int expectedTotalPrice = 55;
//Act
decimal actualTotalPrice = _cartViewModel.TotalPrice();
//Assert
Assert.Equal(expectedTotalPrice, actualTotalPrice);
}