Tennis

Rules

• Each player can have these points: “love” “15” “30” “40”
• If you have 40 and you win the point you win the game, however there are special rules.
• If both have 40 the players are “deuce”.
• If the game is in deuce, the winner of a point will have advantage
• If the player with advantage wins the ball he wins the game
• If the player without advantage wins they are back at deuce.

Task

Write a program which allows you to keep track of the scores during a game of tennis.

For example

game = new Game()
game.PrintScore();   // Displays love-all
game.PointForPlayerOne();
game.PrintScore();   // Displays 15-love
etc

Testing

I suggest trying the ping-pong style of testing.

• One person writes a failing test
• The other person then writes enough code to pass the test
• As a pair you then refactor
• Swap roles

Advanced

If you get to the end of the task, then try creating a 2nd implementation (without changing your tests).

For example, try creating a version which doesn't use any IF statements.

Getting started

1. Fork this repo (https://github.com/YorkCodeDojo/tennis) and clone it to your machine.
2. Create a folder in your local copy with name of your pair.
3. Put your code into this folder
4. At the end of the evening, create a pull request to merge your code back into the original repo

References

• https://codingdojo.org/kata/Tennis/
• https://github.com/emilybache/Tennis-Refactoring-Kata/tree/main/csharp