public async void SetBasketItemWhenNotInBasket() { var userId = Guid.NewGuid(); var existingBasket = await manager.Create(userId); var productId = Guid.NewGuid(); var item = await manager.SetItem(existingBasket.Id, productId, 1); Assert.NotNull(item); Assert.NotEqual(Guid.Empty, item.Id); Assert.Equal(productId, item.ProductId); Assert.Equal(1, item.Quantity); }