public void processPayment(ConsumerPaymentRequest consumerPaymentRequest) throws PaymentServiceException, IOException { String userId = consumerPaymentRequest.getIdentity().getUserId(); log.info("Consumer Payment validation: {}", consumerPaymentRequest); PaymentRequest paymentRequest = populatePaymentRequest(consumerPaymentRequest); log.info("Payment Request JSON ::" + gson.toJson(paymentRequest)); //validate(consumerPaymentRequest); Write junit test case using junit5 and mockito