ShivsundarR commented on code in PR #19818:
URL: https://github.com/apache/kafka/pull/19818#discussion_r2108331701
##########
clients/src/test/java/org/apache/kafka/clients/consumer/internals/ShareMembershipManagerTest.java:
##########
@@ -561,10 +568,42 @@ public void
testIgnoreHeartbeatResponseWhenNotInGroup(MemberState state) {
assertEquals(state, membershipManager.state());
verify(responseData, never()).memberId();
- verify(responseData, never()).memberEpoch();
+ // In unsubscribed, we check if we received a leave group response, so
we do verify member epoch.
+ if (state != MemberState.UNSUBSCRIBED) {
+ verify(responseData, never()).memberEpoch();
+ }
verify(responseData, never()).assignment();
}
+ @Test
+ public void testIgnoreLeaveResponseWhenNotLeavingGroup() {
+ ShareMembershipManager membershipManager = createMemberInStableState();
+
+ CompletableFuture<Void> leaveResult = membershipManager.leaveGroup();
+
+ // Send leave request, transitioning to UNSUBSCRIBED state
+ membershipManager.onHeartbeatRequestGenerated();
+ assertEquals(MemberState.UNSUBSCRIBED, membershipManager.state());
+
+ // Receive a previous heartbeat response, which should be ignored
Review Comment:
This response is not "ignored" right, we are setting the member epoch in the
response to `membershipManager.memberEpoch` (-1 in this case). The leave
operation is then processed successfully post which we are asserting if
`leaveResult` has completed.
If this is the case, can we change the comment above to reflect the same.
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