feature

Feature: Score Calculation 
  As a player
  I want the system to calculate my total score
  So that I know my performance  

Scenario: Homework scenario 1
  Given a new bowling game
  When I roll the following series:  10,1,5,2,8,4,6,10,3,2,1,2,1,0,1,1,2,8,6
  Then my total score should be 98

Scenario: Homework scenario 2
  Given a new bowling game
  When I roll the following series:	10,1,5,2,8,4,6,10,3,2,1,2,1,0,1,1,10,10,6
  Then my total score should be 108     

  Scenario: Homework scenario 3 - All Strikes
  Given a new bowling game
  When I roll the following series:	10,10,10,10,10,10,10,10,10,10,10,10
  Then my total score should be 300   

  Scenario: Homework scenario 4 - All Spares
  Given a new bowling game
  When I roll the following series:	1,9,1,9,1,9,1,9,1,9,1,9,1,9,1,9,1,9,1,9,1
  Then my total score should be 110

  Scenario: Homework scenario 5 - parial record with strike
  Given a new bowling game
  When I roll the following series:	10,1,5
  Then my total score should be 22

  Scenario: Homework scenario 6 - 全部洗溝
  Given a new bowling game
  When 全都洗溝
  Then my total score should be 0

  Scenario: Homework scenario 7 - parial record with spare
  Given a new bowling game
  When I roll the following series:	1,9,2,5
  Then my total score should be 19

steps.cs

using Microsoft.VisualStudio.TestTools.UnitTesting;
using TechTalk.SpecFlow;

namespace Bowling.Specflow
{
    [Binding]
    public class BowlingSteps
    {
        private Game _game;

        [Given(@"a new bowling game")]
        public void GivenANewBowlingGame()
        {
            _game = new Game();
        }        

        [Then(@"my total score should be (\d+)")]
        public void ThenMyTotalScoreShouldBe(int score)
        {
            Assert.AreEqual(score, _game.Score);
        }        

        [When(@"I roll the following series:(.*)")]
        public void WhenIRollTheFollowingSeries(string series)
        {
            foreach (var roll in series.Trim().Split(','))
            {
                _game.Roll(int.Parse(roll));
            }
        }

        [When(@"全都洗溝")]
        public void When全都洗溝()
        {
            for (int i = 0; i < 20; i++)
            {
                _game.Roll(0);
            }
        }

    }
}