Spec\Dumplie\Customer\Domain\CheckoutSpec::it_can_be_used_to_place_order PHP Метод

    function it_can_be_used_to_place_order(Products $products, Carts $carts)
    {
        $product = new Product(new SKU("SKU"), Price::EUR(1000), true);
        $cart = new Cart(CartId::generate(), 'EUR');
        $cart->add($product, 1);
        $carts->getById(Argument::type(CartId::class))->willReturn($cart);
        $products->getBySku(Argument::type(SKU::class))->willReturn($product);
        $order = $this->placeOrder(OrderId::generate(), $products, $carts);
        $order->shouldBeAnInstanceOf(Order::class);
    }