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kata/php

PHP skeleton for doing coding katas

Code Kata is a term coined by Dave Thomas, co-author of the book The Pragmatic Programmer, in a bow to the Japanese concept of kata in the martial arts. A code kata is an exercise in programming which helps a programmer hone their skills through practice and repetition. As of October 2011, Dave Thomas has published 21 different katas.

You can find some to start practicing here.

When you do programming katas, you use TDD. That's why I have included PHPUnit, Mockery, PHPSpec and Prophecy as composer dependencies. Choose the testing framework you feel more comfortable (or play with both).

Practicing a kata

Let's imagine you want to practice "Bowling game kata". Details about this kata can be found here.

You will need composer.

curl -sS https://getcomposer.org/installer | php

Then, use "create-project" command to clone this project as a template and create a new one in your computer.

php composer.phar create-project kata/php bowling-kata dev-master

Then add your classes to 'src/Kata' and your test cases to 'src/Kata/Tests' and run 'php bin/phpunit' to run your tests.

php bin/phpunit

TestCase examples

If you run 'php bin/phpunit' you will see the following output.

PHPUnit 3.8-gc4f2bcd by Sebastian Bergmann.

Configuration read from /Users/carlosbuenosvinos/Documents/Web/bowling/phpunit.xml

...

Time: 91 ms, Memory: 1.75Mb
OK (3 tests, 3 assertions)

That's because you will find one class and its TestCase in the project in order to help you. You can delete them.

Adder is a class that adds two numbers and AdderTest tests that.