coding-challenge-online-shop/src/composer.json

{
  "autoload": {
    "psr-4": {
      "": "./"
    }
  },
    "require": {
        "phpunit/phpunit": "7.2.0",
        "doctrine/coding-standard":"4.0.0",
        "doctrine/collections": "^1.5",
    "twig/twig": "^2.5"
    }
}