cmccabe commented on a change in pull request #11410:
URL: https://github.com/apache/kafka/pull/11410#discussion_r732090271



##########
File path: core/src/test/scala/unit/kafka/utils/TestUtils.scala
##########
@@ -346,6 +367,97 @@ object TestUtils extends Logging {
       config.setProperty(KafkaConfig.LogMessageFormatVersionProp, 
version.version)
   }
 
+  def createAdminClient[B <: KafkaBroker](
+      brokers: Seq[B],
+      adminConfig: Properties): Admin = {
+    val adminClientProperties = if (adminConfig.isEmpty) {
+      val newConfig = new Properties()
+      newConfig.put(AdminClientConfig.BOOTSTRAP_SERVERS_CONFIG, 
getBrokerListStrFromServers(brokers))
+      newConfig
+    } else {
+      adminConfig
+    }
+    Admin.create(adminClientProperties)
+  }
+
+  def createTopicWithAdmin[B <: KafkaBroker](
+      topic: String,
+      numPartitions: Int = 1,
+      replicationFactor: Int = 1,
+      brokers: Seq[B],
+      topicConfig: Properties = new Properties,
+      adminConfig: Properties = new Properties): 
scala.collection.immutable.Map[Int, Int] = {
+    val adminClient = createAdminClient(brokers, adminConfig)
+    try {
+      val configsMap = new java.util.HashMap[String, String]()
+      topicConfig.forEach((k, v) => configsMap.put(k.toString, v.toString))
+      try {
+        adminClient.createTopics(Collections.singletonList(new NewTopic(
+          topic, numPartitions, 
replicationFactor.toShort).configs(configsMap))).all().get()
+      } catch {
+        case e: ExecutionException => if (e.getCause != null &&
+          e.getCause.isInstanceOf[TopicExistsException] &&
+          topicHasSameNumPartitionsAndReplicationFactor(adminClient, topic, 
numPartitions, replicationFactor)) {
+        } else {

Review comment:
       ok




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