Bowling Score Calculator Kata from Daedtech.com Alternative Design Question - http://www.daedtech.com/tdd-for-breaking-problems-apart-3-finishing-up

BowlingScoreCalculator.cs

using System;
using System.Collections.Generic;
using System.Linq;
using Microsoft.VisualStudio.TestTools.UnitTesting;
 
namespace ScratchPadTest
{
    public class BowlingScoreCalculator
    {
        private Frames _frames = new Frames();

        public int Score { get; private set; }

        public void BowlFrame(Frame frame)
        {
            Score += frame.Total(_frames);
            _frames.Push(frame);
        }

        public Frames Frames { get { return _frames; } }
    }
}