kamalcph commented on code in PR #16959:
URL: https://github.com/apache/kafka/pull/16959#discussion_r1729080078


##########
core/src/test/java/kafka/log/remote/RemoteLogManagerTest.java:
##########
@@ -2530,6 +2635,21 @@ public void 
testDeleteLogSegmentDueToRetentionTimeBreach(int segmentCount,
         verifyDeleteLogSegment(segmentMetadataList, deletableSegmentCount, 
currentLeaderEpoch);
     }
 
+    private void verifyRemoteDeleteMetrics(long remoteDeleteLagBytes, long 
remoteDeleteLagSegments) {
+        assertEquals(remoteDeleteLagBytes, 
safeLongYammerMetricValue("RemoteDeleteLagBytes"),
+                String.format("Expected to find %d for RemoteDeleteLagBytes 
metric value, but found %d",
+                        remoteDeleteLagBytes, 
safeLongYammerMetricValue("RemoteDeleteLagBytes")));
+        assertEquals(remoteDeleteLagBytes, 
safeLongYammerMetricValue("RemoteDeleteLagBytes"),
+                String.format("Expected to find %d for RemoteDeleteLagBytes 
metric value, but found %d",
+                        remoteDeleteLagBytes, 
safeLongYammerMetricValue("RemoteDeleteLagBytes")));
+        assertEquals(remoteDeleteLagSegments, 
safeLongYammerMetricValue("RemoteDeleteLagSegments,topic=" + leaderTopic),
+                String.format("Expected to find %d for RemoteDeleteLagSegments 
for 'Leader' topic metric value, but found %d",
+                        remoteDeleteLagSegments, 
safeLongYammerMetricValue("RemoteDeleteLagSegments,topic=" + leaderTopic)));
+        assertEquals(remoteDeleteLagSegments, 
safeLongYammerMetricValue("RemoteDeleteLagSegments,topic=" + leaderTopic),
+                String.format("Expected to find %d for RemoteDeleteLagSegments 
for 'Leader' topic metric value, but found %d",
+                        remoteDeleteLagSegments, 
safeLongYammerMetricValue("RemoteDeleteLagSegments,topic=" + leaderTopic)));
+    }

Review Comment:
   ```suggestion
       private void verifyRemoteDeleteMetrics(long remoteDeleteLagBytes, long 
remoteDeleteLagSegments) {
           assertEquals(remoteDeleteLagBytes, 
safeLongYammerMetricValue("RemoteDeleteLagBytes"),
                   String.format("Expected to find %d for RemoteDeleteLagBytes 
metric value, but found %d",
                           remoteDeleteLagBytes, 
safeLongYammerMetricValue("RemoteDeleteLagBytes")));
           assertEquals(remoteDeleteLagSegments, 
safeLongYammerMetricValue("RemoteDeleteLagSegments"),
                   String.format("Expected to find %d for 
RemoteDeleteLagSegments metric value, but found %d",
                           remoteDeleteLagSegments, 
safeLongYammerMetricValue("RemoteDeleteLagSegments")));
           assertEquals(remoteDeleteLagBytes, 
safeLongYammerMetricValue("RemoteDeleteLagBytes,topic=" + leaderTopic),
                   String.format("Expected to find %d for RemoteDeleteLagBytes 
for 'Leader' topic metric value, but found %d",
                           remoteDeleteLagBytes, 
safeLongYammerMetricValue("RemoteDeleteLagBytes,topic=" + leaderTopic)));
           assertEquals(remoteDeleteLagSegments, 
safeLongYammerMetricValue("RemoteDeleteLagSegments,topic=" + leaderTopic),
                   String.format("Expected to find %d for 
RemoteDeleteLagSegments for 'Leader' topic metric value, but found %d",
                           remoteDeleteLagSegments, 
safeLongYammerMetricValue("RemoteDeleteLagSegments,topic=" + leaderTopic)));
       }
   ```



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