Requirements ------------ **PHP 7:** This is usually bundled with your operating system, or fetchable using a package manager like `apt` or `homebrew`. Windows users can find the latest version here: https://windows.php.net/download#php-7.3 If you want to compile from source code, that can be found here: https://www.php.net/downloads.php **Composer:** Composer is PHP's main package and dependency management tool. It can be downloaded here: https://getcomposer.org/download/ Getting Started --------------- To begin the kata, install the dependencies and run `phpunit`: ``` cd php7 composer install vendor/bin/phpunit ``` If the "install" command does not work, try running `composer update` instead. This will tell composer that it has permission to look for a newer version of its dependencies. If things are still not cooperating, you can try this extreme approach: ``` composer remove phpunit/phpunit composer require phpunit/phpunit ``` To exercise the code outside of phpunit, for example to visually confirm that it is working, use the `texttest_fixture` script: ``` php fixtures/texttest_fixture.php ``` Tips ---- PHPUnit has a very thorough reference manual. It would be particularly useful to explore the [Data Providers](https://phpunit.readthedocs.io/en/8.1/writing-tests-for-phpunit.html#data-providers) section.