tombentley commented on code in PR #12159:
URL: https://github.com/apache/kafka/pull/12159#discussion_r881437895


##########
clients/src/test/java/org/apache/kafka/common/network/SelectorTest.java:
##########
@@ -1030,10 +1025,7 @@ private void blockingConnect(String node) throws 
IOException {
 
     protected void blockingConnect(String node, InetSocketAddress serverAddr) 
throws IOException {
         selector.connect(node, serverAddr, BUFFER_SIZE, BUFFER_SIZE);
-        while (!selector.connected().contains(node))
-            selector.poll(10000L);
-        while (!selector.isChannelReady(node))
-            selector.poll(10000L);
+        NetworkTestUtils.waitForChannelReady(selector, node);

Review Comment:
   The question is whether this test should assume the correctness of the 
implementation of that state machine in KafkaChannel. It's probably a safe 
assumption, but I'd be inclined to not make that assumption. 



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