我需要测试的方法是 public 方法：

public ResponseResult subscribe(SysSubscription sysSubscription) throws JsonGenerationException, JsonMappingException, IOException {
LOGGER.debug("=====================subscribe Subscription=======================");
ResponseResult result = new ResponseResult();

if (checkNotNull(sysSubscription)) {
return handleSubscribe(sysSubscription, result);
}
return result;
}

但是在handleSubscribe内部会调用 private 方法：

private ResponseResult createResponseResultByResponse(Response response, ResponseResult responseResult) {

试了 powermockito spy 来 partially mock private 方法发现没用。 因为这是两层的public 方法。

只好把方法改成

protected ResponseResult createResponseResultByResponse(Response response, ResponseResult responseResult) {