function it_updates_orders_exchange_rate(RepositoryInterface $currencyRepository, OrderInterface $order, CurrencyInterface $currency)
 {
     $order->getCurrencyCode()->willReturn('USD');
     $currency->getCode()->willReturn('USD');
     $currency->getExchangeRate()->willReturn(2);
     $currencyRepository->findOneBy(['code' => 'USD'])->willReturn($currency);
     $order->setExchangeRate(2)->shouldBeCalled();
     $this->update($order);
 }