public void calculates_correct_subtotal()
{
// Arrange
var dataAccess = A.Fake<IShoppingDataAccess>();
var item1 = new BasketItem(12, 34, dataAccess);
var item2 = new BasketItem(1, 2, dataAccess);
var target = new Basket(dataAccess);
target.AddItem(item1);
target.AddItem(item2);
// Act
var result = target.CalculateSubTotal();
// Assert
Assert.Equal(12 * 34 + 1 * 2, result);
}
public void saves_calls_data_access_save_with_correct_params()
{
// Arrange
var dataAccess = A.Fake<IShoppingDataAccess>();
var item = new BasketItem(12, 34, dataAccess);
var target = new Basket(dataAccess);
target.AddItem(item);
// Act
target.Save();
// Assert
A.CallTo(() => dataAccess.SaveBasketItems(A<Guid>.Ignored, A<IEnumerable<BasketItem>>.That.Contains(item))).MustHaveHappened(Repeated.Exactly.Once);
}