mjsax commented on code in PR #17781:
URL: https://github.com/apache/kafka/pull/17781#discussion_r1841476551
##########
clients/src/test/java/org/apache/kafka/clients/consumer/KafkaConsumerTest.java:
##########
@@ -224,6 +232,117 @@ public void cleanup() {
}
}
+ @ParameterizedTest
+ @EnumSource(GroupProtocol.class)
+ public void
testSubscribingCustomMetricsDoesntAffectConsumerMetrics(GroupProtocol
groupProtocol) {
+ Properties props = new Properties();
+ props.setProperty(ConsumerConfig.GROUP_PROTOCOL_CONFIG,
groupProtocol.name());
+ props.setProperty(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG,
"localhost:9999");
+ consumer = newConsumer(props, new StringDeserializer(), new
StringDeserializer());
+
+ Map<MetricName, KafkaMetric> customMetrics = customMetrics();
+ customMetrics.forEach((name, metric) ->
consumer.registerMetricForSubscription(metric));
+
+ Map<MetricName, ? extends Metric> consumerMetrics = consumer.metrics();
+ customMetrics.forEach((name, metric) ->
assertFalse(consumerMetrics.containsKey(name)));
+ }
+
+ @ParameterizedTest
+ @EnumSource(GroupProtocol.class)
+ public void
testSubscribingCustomMetricsWithSameNameDoesntAffectConsumerMetrics(GroupProtocol
groupProtocol) {
+ Properties props = new Properties();
+ props.setProperty(ConsumerConfig.GROUP_PROTOCOL_CONFIG,
groupProtocol.name());
+ props.setProperty(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG,
"localhost:9999");
+ consumer = newConsumer(props, new StringDeserializer(), new
StringDeserializer());
+
+ Map<MetricName, ? extends Metric> sortedMetrics = new
LinkedHashMap<>(consumer.metrics());
+ KafkaMetric firstMetric = (KafkaMetric)
sortedMetrics.entrySet().iterator().next().getValue();
+
+ Object lock = new Object();
+ MetricName metricNameCopy = new
MetricName(firstMetric.metricName().name(), firstMetric.metricName().group(),
firstMetric.metricName().description(), firstMetric.metricName().tags());
+ KafkaMetric metricCopy = new KafkaMetric(lock, metricNameCopy,
firstMetric.measurable(), firstMetric.config(), Time.SYSTEM);
+ consumer.registerMetricForSubscription(metricCopy);
+
+ sortedMetrics = new LinkedHashMap<>(consumer.metrics());
+ KafkaMetric secondMetric = (KafkaMetric)
sortedMetrics.entrySet().iterator().next().getValue();
+ assertSame(firstMetric, secondMetric);
+ assertNotSame(firstMetric, metricCopy);
Review Comment:
Seems we know this a-priori that it's two different objects? -- Should this
be `assertNotSame(secondMetric, metricCopy);` instead? On the other hand, this
might make `assertSame(firstMetric, secondMetric);` redundant?
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: jira-unsubscr...@kafka.apache.org
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
