mjsax commented on code in PR #20600:
URL: https://github.com/apache/kafka/pull/20600#discussion_r2427831890
##########
core/src/test/scala/integration/kafka/api/PlaintextAdminIntegrationTest.scala:
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@@ -4504,6 +4506,55 @@ class PlaintextAdminIntegrationTest extends
BaseAdminIntegrationTest {
}
}
+ @Test
+ def testDescribeStreamsGroupsForStatelessTopology(): Unit = {
+ val streamsGroupId = "stream_group_id"
+ val testTopicName = "test_topic"
+ val testNumPartitions = 1
+
+ val config = createConfig
+ client = Admin.create(config)
+
+ prepareTopics(List(testTopicName), testNumPartitions)
+ prepareRecords(testTopicName)
+
+ val streams = createStreamsGroup(
+ inputTopics = Set(testTopicName),
+ streamsGroupId = streamsGroupId
+ )
+ streams.poll(JDuration.ofMillis(500L))
+
+ try {
+ TestUtils.waitUntilTrue(() => {
+ val firstGroup =
client.listGroups().all().get().stream().findFirst().orElse(null)
+ firstGroup.groupState().orElse(null) == GroupState.STABLE &&
firstGroup.groupId() == streamsGroupId
+ }, "Streams group did not transition to STABLE before timeout")
+
+ // Verify the describe call works correctly
+ val describedGroups =
client.describeStreamsGroups(util.List.of(streamsGroupId)).all().get()
+ val group = describedGroups.get(streamsGroupId)
Review Comment:
I see -- there is no reason why the state should not be `STABLE`. However,
why do we need to test if "describe group" work correctly here? If we want to
test if the group becomes `STABLE`, it seems the test should after after the
"list group" verification from above?
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