Mastering PHP 7

Setting up a sample application

The sample application for Behat testing is the same one we used for PHPUnit testing. We will merely extend it a bit by adding an extra class to it. Given the lack of any real "behavior" in our PHPUnit sample application, our extension here will include a dummy shopping cart functionality.

Therefore, we will add the src\Foggyline\Checkout\Model\Cart.php file, with its content as follows:

<?phpdeclare(strict_types=1);namespace Foggyline\Checkout\Model;class Cart implements \Countable{    protected $productQtyMapping = [];    public function addProduct(\Foggyline\Catalog\Model\Product $product, int $qty): self    {        $this->productQtyMapping[$product->getId()]['product'] = $product;        $this->productQtyMapping[$product->getId()][ ...