Tennis scoring

• 0 = Love
• 1 - 0 = Fifteen-Love
• 2 - 0 = Thirty-Love
• 3 - 0 = Fourty-Love
• 4 - 0 = Game

Repeating phase

• 4 - 3 = Advantage Player -> 5 - 3 = Win
• 4 - 4 = Deuce

In order to win, you must be ahead with 2 points.

Tricky parts:

• 2 - 2 = Thirty-All
• 1 - 1 = Fourty-All

Usage

Prerequisite

Install gulp globally if you don't have it.

sudo npm install -g gulp

composer install
npm install
./vendor/bin/phpspec run
# or
gulp