content: /*
   * 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 org.apache.kafka.connect.mirror;
  
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  import java.util.Collections;
  import java.util.HashMap;
  import java.util.Map;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertFalse;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  public class ReplicationPolicyTest {
      private static final DefaultReplicationPolicy DEFAULT_REPLICATION_POLICY = new DefaultReplicationPolicy();
  
      @BeforeEach
      public void setUp() {
          DEFAULT_REPLICATION_POLICY.configure(Collections.emptyMap());
      }
  
      @Test
      public void testInternalTopic() {
          Map<String, Object> config =  new HashMap<>();
          config.put(MirrorClientConfig.REPLICATION_POLICY_SEPARATOR, ".");
          DEFAULT_REPLICATION_POLICY.configure(config);
  
          // starts with '__'
          assertTrue(DEFAULT_REPLICATION_POLICY.isInternalTopic("__consumer_offsets"));
          // starts with '.'
          assertTrue(DEFAULT_REPLICATION_POLICY.isInternalTopic(".hiddentopic"));
  
          // starts with 'mm2' and ends with '.internal': default DistributedConfig.OFFSET_STORAGE_TOPIC_CONFIG in standalone mode.
          assertTrue(DEFAULT_REPLICATION_POLICY.isInternalTopic("mm2-offsets.CLUSTER.internal"));
          // non-internal topic.
          assertFalse(DEFAULT_REPLICATION_POLICY.isInternalTopic("mm2-offsets_CLUSTER_internal"));
      }
  
  
      @Test
      public void offsetSyncsTopic_shouldBeEffectedByInternalTopicSeparatorEnabled() {
          Map<String, Object> config =  new HashMap<>();
          config.put(MirrorClientConfig.REPLICATION_POLICY_SEPARATOR, "__");
  
          config.put(MirrorClientConfig.INTERNAL_TOPIC_SEPARATOR_ENABLED, false);
          DEFAULT_REPLICATION_POLICY.configure(config);
          assertEquals("mm2-offset-syncs.CLUSTER.internal", DEFAULT_REPLICATION_POLICY.offsetSyncsTopic("CLUSTER"));
  
          config.put(MirrorClientConfig.INTERNAL_TOPIC_SEPARATOR_ENABLED, true);
          DEFAULT_REPLICATION_POLICY.configure(config);
          assertEquals("mm2-offset-syncs__CLUSTER__internal", DEFAULT_REPLICATION_POLICY.offsetSyncsTopic("CLUSTER"));
      }
  
      @Test
      public void checkpointsTopic_shouldBeEffectedByInternalTopicSeparatorEnabled() {
          Map<String, Object> config =  new HashMap<>();
          config.put(MirrorClientConfig.REPLICATION_POLICY_SEPARATOR, "__");
  
          config.put(MirrorClientConfig.INTERNAL_TOPIC_SEPARATOR_ENABLED, false);
          DEFAULT_REPLICATION_POLICY.configure(config);
          assertEquals("CLUSTER.checkpoints.internal", DEFAULT_REPLICATION_POLICY.checkpointsTopic("CLUSTER"));
  
          config.put(MirrorClientConfig.INTERNAL_TOPIC_SEPARATOR_ENABLED, true);
          DEFAULT_REPLICATION_POLICY.configure(config);
          assertEquals("CLUSTER__checkpoints__internal", DEFAULT_REPLICATION_POLICY.checkpointsTopic("CLUSTER"));
      }
  
      @Test
      public void heartbeatsTopic_shouldNotBeEffectedByInternalTopicSeparatorConfig() {
          Map<String, Object> config =  new HashMap<>();
          config.put(MirrorClientConfig.REPLICATION_POLICY_SEPARATOR, "__");
  
          config.put(MirrorClientConfig.INTERNAL_TOPIC_SEPARATOR_ENABLED, true);
          assertEquals("heartbeats", DEFAULT_REPLICATION_POLICY.heartbeatsTopic());
  
          config.put(MirrorClientConfig.INTERNAL_TOPIC_SEPARATOR_ENABLED, false);
          DEFAULT_REPLICATION_POLICY.configure(config);
          assertEquals("heartbeats", DEFAULT_REPLICATION_POLICY.heartbeatsTopic());
      }
  }
  