using IceCreamBuyers;
using Microsoft.VisualStudio.TestTools.UnitTesting;
using System.Collections.Generic;

namespace IceCreamBuyers.Tests
{
    [TestClass]
    public class BuyersTests
    {
        [TestMethod]
        public void ShoppingListTotalUsesThePricingWePassIn()
        {
            // pure pricing function: everything costs 2.
            // Anke: 2 flavours x 2 scoops x 2 = 8 — deterministic, glanceable.
            var buyers = new Buyers();
            var anke = new Buyer("Anke", new List<IceCream> { IceCream.Strawberry, IceCream.Vanilla });
            Assert.AreEqual(8, buyers.ShoppingListTotal(anke, _ => 2));
        }
    }
}