[GitHub] [kafka] mumrah commented on a change in pull request #9986: JUnit extensions for integration tests

[GitBox <gi...@apache.org>]

mumrah commented on a change in pull request #9986:
URL: https://github.com/apache/kafka/pull/9986#discussion_r567956186



##########
File path: core/src/test/java/kafka/test/ClusterInstance.java
##########
@@ -0,0 +1,66 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package kafka.test;
+
+import kafka.network.SocketServer;
+import org.apache.kafka.clients.admin.Admin;
+import org.apache.kafka.common.network.ListenerName;
+
+import java.util.Collection;
+import java.util.Optional;
+import java.util.Properties;
+
+public interface ClusterInstance {
+
+    enum ClusterType {
+        Zk,
+        // Raft
+    }
+
+    ClusterType clusterType();
+
+    ClusterConfig config();
+
+    ListenerName listener();
+
+    String brokerList();
+
+    Collection<SocketServer> brokers();
+
+    Collection<SocketServer> controllers();

Review comment:
       It will return just the one SocketServer of the broker which has the active controller




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