philipnee commented on code in PR #16043:
URL: https://github.com/apache/kafka/pull/16043#discussion_r1631236747
##########
core/src/test/scala/integration/kafka/api/PlaintextConsumerTest.scala:
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@@ -189,6 +189,20 @@ class PlaintextConsumerTest extends BaseConsumerTest {
assertThrows(classOf[InvalidTopicException], () =>
consumer.partitionsFor(";3# ads,{234"))
}
+ @ParameterizedTest(name =
TestInfoUtils.TestWithParameterizedQuorumAndGroupProtocolNames)
+ @MethodSource(Array("getTestQuorumAndGroupProtocolParametersAll"))
+ def testSubscribeInvalidTopic(quorum: String, groupProtocol: String): Unit =
{
+ val invalidTopicName = "topic abc"
+ val consumer = createConsumer()
+
+ // subscribe invalid topic
+ consumer.subscribe(List(invalidTopicName).asJava)
+
+ consumer.poll(Duration.ZERO);
Review Comment:
if you look at the log, you can see the client poll the background event
queue before receiving the metadata error as you poll immediately after
subscribe, whereas the old consumer would keep polling the network client
during the long poll (the second poll).
you can try to use `waitUntilTrue` to check if the exception is thrown in
the end.
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