This Kata is about implementing a simple tennis game by TDD
http://www.codingdojo.org/cgi-bin/index.pl?KataTennis
The scoring system is rather simple:
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Each player can have either of these points in one game 0 15 30 40
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If you have 40 and you win the ball you win the game, however there are special rules.
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If both have 40 the players are deuce.
- If the game is in deuce, the winner of a ball will have advantage and game ball.
- If the player with advantage wins the ball he wins the game
- If the player without advantage wins they are back at deuce.
===== Alternate description of the rules per Wikipedia (http://en.wikipedia.org/wiki/Tennis#Scoring):
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A game is won by the first player to have won at least four points in total and at least two points more than the opponent.
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The running score of each game is described in a manner peculiar to tennis: scores from zero to three points are described as "love", "fifteen", "thirty", and "forty" respectively.
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If at least three points have been scored by each player, and the scores are equal, the score is "deuce".
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If at least three points have been scored by each side and a player has one more point than his opponent, the score of the game is "advantage" for the player in the lead.