showuon commented on code in PR #15530:
URL: https://github.com/apache/kafka/pull/15530#discussion_r1528015868
##########
core/src/test/scala/unit/kafka/server/KafkaServerTest.scala:
##########
@@ -42,6 +43,24 @@ class KafkaServerTest extends QuorumTestHarness {
TestUtils.shutdownServers(Seq(server1, server2))
}
+ @Test
+ def testListenerPortAlreadyInUse(): Unit = {
+ val serverSocket = new ServerSocket(0, 0, InetAddress.getLoopbackAddress)
+
+ var kafkaServer : Option[KafkaServer] = None
+ try {
+ TestUtils.waitUntilTrue(() => serverSocket.isBound, "Server socket
failed to bind.")
+ // start a server with listener on the port already bound
+ assertThrows(classOf[RuntimeException],
+ () => kafkaServer =
Option(createServerWithListenerOnPort(serverSocket.getLocalPort)),
+ "Exepected RuntimeException because of KafkaServer startup failure due
do address already in use"
Review Comment:
nit: typo for `Expected`, `due to`. And the sentence could be rephrased,
maybe:
"Expected RuntimeException due to address already in use when KafkaServer
startup"
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