@Test
    public void testSendLargeRequest() throws Exception {
        String node = "0";
        blockingConnect(node);
        String big = TestUtils.randomString(10 * BUFFER_SIZE);
        assertEquals(big, blockingRequest(node, big));
    }
Validate that we can send and receive a message larger than the receive and send buffer size
clients/src/test/java/org/apache/kafka/common/network/SelectorTest.java