Bonus Assignment - Tennis Game Kata
PV260 Software Quality
May 4, 2015
Tennis Game - Scoring
Each player starts with 0 points
The scoring then goes like this 0 → 15 → 30 → 40
If A has 40 and scores, and B doesn’t have 40, A wins
If both have 40 and A scores, A has Advantage
If A has Advantage and scores, they win
If A has Advantage, B has 40 and scores, both are at 40 again
Scores are written in the format ’A - B’, e.g. ’30 - 15’
When A has Advantage, the score is written as ’A - 40’
If scores are equal, e.g. both have 30, it is called ’30 all’
If both players have 40 points, it is called ’deuce’
Tennis Game - Controls Specification
The game is controlled from console
User enters text commands, for each command there must be
some response
description of new state
unknown command notification
list of available commands
. . .
Commands are NOT case sensitive
The state descriptions can be wrapped in arbitrary text to
decorate the output.
E.g. if the score is 15 30 the output can be ’Current score is
15 - 30.’ or ’The score is 15 - 30 now’ etc.
Tennis Game - Controls Specification
Following commands exist:
’Exit’ : Quits the program
’New Game’ : Can be called at any time,
scoring is reset to 0
’Player X Scored’ : Where ’X’ is either A or B,
increments score of player X
’Show Score’ : Displays text containing the score
which is in the format specified above.
If there is a winner already,
output is same as that of ’Show Winner’
’Show Winner’ : Displays name of the winner (’A’ or ’B’)
or text containing ’no one’
if there is no winner yet