Tennis kata bootstrap

GameScorer_Tests.cs

using NUnit.Framework;

namespace TennisKataBootstrap
{
    [TestFixture]
    public class GameScorer_Tests
    {
		[Test]
		public void Score_should_return_love_love_when_players_have_played()
		{
			// Arrange
			GameScorer scorer = new GameScorer();

			// Act
			string score = scorer.Score();

			// Assert
			Assert.AreEqual("Love - Love", score);
		}

		[Test]
		public void Score_should_return_fifteen_love_when_first_playered_scored_one_ball()
		{
			// Arrange
			GameScorer scorer = new GameScorer();

			// Act
			scorer.Player1Scores();
			string score = scorer.Score();

			// Assert
			Assert.AreEqual("Fifteen - Love", score);
		}

    }

	public class GameScorer
	{
		private int _firstPlayerScore;

		public string Score()
		{
			if (_firstPlayerScore == 1)
				return "Fifteen - Love";
			return "Love - Love";
		}

		public void Player1Scores()
		{
			_firstPlayerScore++;
		}
	}
}