code: /*
   * 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.skywalking.oap.server.analyzer.agent.kafka.provider.handler;
  
  import org.apache.kafka.clients.consumer.ConsumerRecord;
  import org.apache.kafka.common.utils.Bytes;
  import org.apache.skywalking.apm.network.management.v3.InstancePingPkg;
  import org.apache.skywalking.apm.network.management.v3.InstanceProperties;
  import org.apache.skywalking.oap.server.analyzer.agent.kafka.mock.MockModuleManager;
  import org.apache.skywalking.oap.server.analyzer.agent.kafka.mock.MockModuleProvider;
  import org.apache.skywalking.oap.server.analyzer.agent.kafka.module.KafkaFetcherConfig;
  import org.apache.skywalking.oap.server.core.CoreModule;
  import org.apache.skywalking.oap.server.core.config.NamingControl;
  import org.apache.skywalking.oap.server.core.config.group.EndpointNameGrouping;
  import org.apache.skywalking.oap.server.core.source.ISource;
  import org.apache.skywalking.oap.server.core.source.ServiceInstanceUpdate;
  import org.apache.skywalking.oap.server.core.source.SourceReceiver;
  import org.apache.skywalking.oap.server.library.module.ModuleManager;
  import org.junit.jupiter.api.Assertions;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.extension.RegisterExtension;
  
  import java.util.List;
  
  public class ServiceManagementHandlerTest {
      private static final String TOPIC_NAME = "skywalking-managements";
  
      private static final String SERVICE = "MOCK_SERVER";
      private static final String SERVICE_INSTANCE = "MOCK_SERVICE_INSTANCE";
      private KafkaHandler handler = null;
      private KafkaFetcherConfig config = new KafkaFetcherConfig();
  
      private ModuleManager manager;
  
      @RegisterExtension
      public final SourceReceiverRule sourceReceiverRule = new SourceReceiverRule() {
  
          @Override
          public void verify(final List<ISource> sourceList) {
              ServiceInstanceUpdate instanceUpdate = (ServiceInstanceUpdate) sourceList.get(0);
              Assertions.assertEquals(instanceUpdate.getName(), SERVICE_INSTANCE);
  
              ServiceInstanceUpdate instanceUpdate1 = (ServiceInstanceUpdate) sourceList.get(2);
              Assertions.assertEquals(instanceUpdate1.getName(), SERVICE_INSTANCE);
          }
      };
  
      @BeforeEach
      public void setup() {
          manager = new MockModuleManager() {
              @Override
              protected void init() {
                  register(CoreModule.NAME, () -> new MockModuleProvider() {
                      @Override
                      protected void register() {
                          registerServiceImplementation(NamingControl.class, new NamingControl(
                              512, 512, 512, new EndpointNameGrouping()));
                          registerServiceImplementation(SourceReceiver.class, sourceReceiverRule);
                      }
                  });
              }
          };
          handler = new ServiceManagementHandler(manager, config);
      }
  
      @Test
      public void testTopicName() {
          Assertions.assertEquals(handler.getTopic(), TOPIC_NAME);
      }
  
      @Test
      public void testHandler() {
          InstanceProperties properties = InstanceProperties.newBuilder()
                                                            .setService(SERVICE)
                                                            .setServiceInstance(SERVICE_INSTANCE)
                                                            .build();
          InstancePingPkg ping = InstancePingPkg.newBuilder()
                                                .setService(SERVICE)
                                                .setServiceInstance(SERVICE_INSTANCE)
                                                .build();
  
          handler.handle(new ConsumerRecord<>(TOPIC_NAME, 0, 0, "register", Bytes.wrap(properties.toByteArray())));
          handler.handle(
              new ConsumerRecord<>(TOPIC_NAME, 0, 0, ping.getServiceInstance(), Bytes.wrap(ping.toByteArray())));
      }
  }
  