Address billingAddress = new Address("2233 Pike Street", "Seattle");
Address shippingAddress = new Address("1234 Market Street", "San Francisco");
Order order = new Order(customer, billingAddress, shippingAddress);
ModelMapper modelMapper = new ModelMapper();
OrderDTO dto = modelMapper.map(order, OrderDTO.class);
assertEquals(dto.getCustomerName(), order.getCustomer().getName());
assertEquals(dto.getShippingStreetAddress(), order.getShippingAddress().getStreet());
assertEquals(dto.getShippingCity(), order.getShippingAddress().getCity());
assertEquals(dto.getBillingStreetAddress(), order.getBillingAddress().getStreet());