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);
}