Junit测试用例问题编写

Question

@Override
public Object validateCardbin(ValidateCardbinRequest validateCardbinRequest, String apiKey, String apiSecret)
        throws IOException, InterruptedException {
    String methodName = "validateCardbin::";
    RazorPayResp razorPayResp = new RazorPayResp();
    HttpResponse<String> response = null;
    try {
        response = razorpayHelper.processValidateCardbinRequest(validateCardbinRequest.getCardNumber(), apiKey,
                apiSecret);
    } catch (Exception e) {
        logger.error(CLASS_NAME + methodName, BFLLoggerComponent.PROCESSOR,
                "Exception while calling Razor Pay API : " + e);
    }
    if (200 == response.statusCode()) {
        JSONObject jsoNObject = new JSONObject(response.body());
        razorPayResp = new ObjectMapper().readValue(jsoNObject.toString(), RazorPayResp.class);
    } else if (400 == response.statusCode()) {
        String errorMessage = JsonParser.parseString(response.body()).getAsJsonObject().get(Constants.ERROR).getAsJsonObject().get(Constants.DESC).getAsString();
        logger.debug(CLASS_NAME, BFLLoggerComponent.PROCESSOR, "Unable to Validate IIN with Response:" + errorMessage);
        throw new RazorpayServiceException(HttpStatus.BAD_REQUEST, "BFSDPAY-RZP-1009", errorMessage);
    } else {
        logger.debug(CLASS_NAME, BFLLoggerComponent.PROCESSOR, "Unable to Validate IIN with Response:" + response);
        throw new RazorpayServiceException(HttpStatus.BAD_REQUEST, "BFSDPAY-RZP-1010",
                env.getProperty("BFSDPAY-RZP-1010"));
    }

    return getValidateBinResp(razorPayResp);
}











private Object getValidateBinResp(RazorPayResp validateIinResponse) {
    String cardCategory = "";
    String cardType = "";
    if (validateIinResponse.getType().equals(Constants.DEBIT))
        cardCategory = CommonConstants.DEBIT_CARD;
    if (validateIinResponse.getNetwork().equals(Constants.VISA))
        cardType = CommonConstants.VISA_CARD;
    ValidateBinResponseBean validateBinResponseBean = new ValidateBinResponseBean();;
    validateBinResponseBean.setCardCategory(cardCategory);
    validateBinResponseBean.setCardType(cardType);
    validateBinResponseBean.setStatus(true);
    return validateBinResponseBean;
}

}

请帮助我为此代码编写 junit 测试用例，因为我在编写测试用例时遇到了问题。

我需要这个代码量的junit测试用例，这将非常有帮助。如果有人可以帮助我编写此代码