@Test
    public void testDoLongPolling() throws UnsupportedEncodingException {
        testCompareChangedGroup();
        testGetRemoteIp();
        testGenerateResponse();
    }
test DoLongPolling Process.

@throws UnsupportedEncodingException throw not support encoding
shenyu-admin/src/test/java/org/apache/shenyu/admin/listener/http/HttpLongPollingDataChangedListenerTest.java