Fix flaky testHasMessageAvailableWhenCreated (apache#511)

BewareMyPower · web-flow · commit 2b84925b097d · 2025-10-16T08:19:24.000-07:00
diff --git a/tests/ReaderTest.cc b/tests/ReaderTest.cc
@@ -645,6 +645,7 @@ TEST_P(ReaderTest, testHasMessageAvailableWhenCreated) {
 
     ProducerConfiguration producerConf;
     producerConf.setBatchingMaxMessages(3);
+    producerConf.setPartitionsRoutingMode(ProducerConfiguration::UseSinglePartition);
     Producer producer;
     ASSERT_EQ(ResultOk, client.createProducer(topicName, producerConf, producer));
 
