getBillingAddress example

$this->orderRepository = $this->getContainer()->get('order.repository');
        $serializerRegistry = $this->getContainer()->get(SerializerRegistry::class);

        $this->serializer = new OrderSerializer();

        $this->serializer->setRegistry($serializerRegistry);
    }

    public function testSerializeOrder(): void
    {
        $order = $this->createOrder();
        static::assertNotNull($order->getBillingAddress());
        static::assertNotNull($order->getOrderCustomer());

        $orderDefinition = $this->getContainer()->get('order.repository')->getDefinition();
        $config = new Config([], [], []);

        $serialized = iterator_to_array($this->serializer->serialize($config, $orderDefinition, $order));

        static::assertNotEmpty($serialized);

        // assert values         static::assertSame($serialized['id'], $order->getId());
        

'shop_id' => $customer->getShopId(),
            'default_billing_address_id' => $customer->getDefaultBillingAddressId(),
            'title' => $customer->getTitle(),
            'salutation' => $customer->getSalutation(),
            'firstname' => $customer->getFirstname(),
            'lastname' => $customer->getLastname(),
            'birthday' => $this->formatDate($customer->getBirthday()),
            'customernumber' => $customer->getNumber(),
            'customer_group_id' => $customer->getCustomerGroup() ? $customer->getCustomerGroup()->getId() : null,
            'customer_group_name' => $customer->getCustomerGroup() ? $customer->getCustomerGroup()->getName() : '',
            'payment_id' => $customer->getPaymentId(),
            'company' => $customer->getBillingAddress() ? $customer->getBillingAddress()->getCompany() : '',
            'department' => $customer->getBillingAddress() ? $customer->getBillingAddress()->getDepartment() : '',
            'street' => $customer->getBillingAddress() ? $customer->getBillingAddress()->getStreet() : '',
            'zipcode' => $customer->getBillingAddress() ? $customer->getBillingAddress()->getZipcode() : '',
            'city' => $customer->getBillingAddress() ? $customer->getBillingAddress()->getCity() : '',
            'phone' => $customer->getBillingAddress() ? $customer->getBillingAddress()->getPhone() : '',
            'additional_address_line1' => $customer->getBillingAddress() ? $customer->getBillingAddress()->getAdditionalAddressLine1() : '',
            'additional_address_line2' => $customer->getBillingAddress() ? $customer->getBillingAddress()->getAdditionalAddressLine2() : '',
            'country_id' => $customer->getBillingAddress() ? $customer->getBillingAddress()->getCountryId() : null,
            'country_name' => $customer->getBillingAddress() ? $customer->getBillingAddress()->getCountry()->getName() : '',
            'state_id' => $customer->getBillingAddress() ? $customer->getBillingAddress()->getStateId() : '',
            'age' => $customer->getAge(),
            

throw CartException::customerNotLoggedIn();
        }

        $guest = $orderCustomer->getCustomer() !== null && $orderCustomer->getCustomer()->getGuest();
        // Throw exception when customer is not guest         if (!$guest) {
            throw CartException::customerNotLoggedIn();
        }

        // Verify email and zip code with this order         if ($request->get('email', false) && $request->get('zipcode', false)) {
            $billingAddress = $order->getBillingAddress();
            if ($billingAddress === null
                || $request->get('email') !== $orderCustomer->getEmail()
                || $request->get('zipcode') !== $billingAddress->getZipcode()) {
                throw new WrongGuestCredentialsException();
            }
        } else {
            throw new GuestNotAuthenticatedException();
        }
    }
}

if ($order->getOrderCustomer() === null) {
            throw OrderException::missingAssociation('orderCustomer');
        }

        $customer = $order->getOrderCustomer()->getCustomer();
        $customerGroupId = null;
        if ($customer) {
            $customerGroupId = $customer->getGroupId();
        }

        $billingAddress = $order->getBillingAddress();
        $countryStateId = null;
        if ($billingAddress) {
            $countryStateId = $billingAddress->getCountryStateId();
        }

        $options = [
            SalesChannelContextService::CURRENCY_ID => $order->getCurrencyId(),
            SalesChannelContextService::LANGUAGE_ID => $order->getLanguageId(),
            SalesChannelContextService::CUSTOMER_ID => $order->getOrderCustomer()->getCustomerId(),
            SalesChannelContextService::COUNTRY_STATE_ID => $countryStateId,
            SalesChannelContextService::CUSTOMER_GROUP_ID => $customerGroupId,