content: /*
   * Copyright 1999-2018 Alibaba Group Holding Ltd.
   *
   * Licensed 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 com.alibaba.nacos.naming.core.v2.metadata;
  
  import com.alibaba.nacos.consistency.SerializeFactory;
  import com.alibaba.nacos.consistency.Serializer;
  import com.alibaba.nacos.consistency.cp.CPProtocol;
  import com.alibaba.nacos.consistency.entity.ReadRequest;
  import com.alibaba.nacos.consistency.entity.Response;
  import com.alibaba.nacos.consistency.entity.WriteRequest;
  import com.alibaba.nacos.consistency.snapshot.SnapshotOperation;
  import com.alibaba.nacos.core.distributed.ProtocolManager;
  import com.alibaba.nacos.naming.constants.Constants;
  import com.alibaba.nacos.naming.core.v2.ServiceManager;
  import com.alibaba.nacos.naming.core.v2.index.ServiceStorage;
  import com.alibaba.nacos.naming.core.v2.pojo.Service;
  import com.alibaba.nacos.sys.utils.ApplicationUtils;
  import com.google.protobuf.ByteString;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.junit.jupiter.api.extension.ExtendWith;
  import org.mockito.Mock;
  import org.mockito.Mockito;
  import org.mockito.junit.jupiter.MockitoExtension;
  import org.springframework.context.ConfigurableApplicationContext;
  
  import java.lang.reflect.Field;
  import java.util.List;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertFalse;
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  import static org.junit.jupiter.api.Assertions.assertNull;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  import static org.mockito.Mockito.times;
  import static org.mockito.Mockito.verify;
  
  @ExtendWith(MockitoExtension.class)
  class ServiceMetadataProcessorTest {
      
      @Mock
      private NamingMetadataManager namingMetadataManager;
      
      @Mock
      private ProtocolManager protocolManager;
      
      @Mock
      private ServiceStorage serviceStorage;
      
      @Mock
      private CPProtocol cpProtocol;
      
      @Mock
      private ConfigurableApplicationContext context;
      
      private ServiceMetadataProcessor serviceMetadataProcessor;
      
      @BeforeEach
      void setUp() throws Exception {
          Mockito.when(protocolManager.getCpProtocol()).thenReturn(cpProtocol);
          ApplicationUtils.injectContext(context);
          
          serviceMetadataProcessor = new ServiceMetadataProcessor(namingMetadataManager, protocolManager, serviceStorage);
      }
      
      @Test
      void testLoadSnapshotOperate() {
          List<SnapshotOperation> snapshotOperations = serviceMetadataProcessor.loadSnapshotOperate();
          
          assertNotNull(snapshotOperations);
          assertEquals(1, snapshotOperations.size());
      }
      
      @Test
      void testOnRequest() {
          Response response = serviceMetadataProcessor.onRequest(ReadRequest.getDefaultInstance());
          
          assertNull(response);
      }
      
      @Test
      void testOnApply() throws NoSuchFieldException, IllegalAccessException {
          WriteRequest defaultInstance = WriteRequest.getDefaultInstance();
          Class<WriteRequest> writeRequestClass = WriteRequest.class;
          Field operation = writeRequestClass.getDeclaredField("operation_");
          operation.setAccessible(true);
          operation.set(defaultInstance, "ADD");
          
          MetadataOperation<ServiceMetadata> metadataOperation = new MetadataOperation<>();
          ServiceMetadata serviceMetadata = new ServiceMetadata();
          metadataOperation.setMetadata(serviceMetadata);
          metadataOperation.setServiceName("nacos");
          metadataOperation.setNamespace("namespace");
          metadataOperation.setGroup("group");
          Serializer aDefault = SerializeFactory.getDefault();
          ByteString bytes = ByteString.copyFrom(aDefault.serialize(metadataOperation));
          
          Field data = writeRequestClass.getDeclaredField("data_");
          data.setAccessible(true);
          data.set(defaultInstance, bytes);
          
          // ADD
          Response addResponse = serviceMetadataProcessor.onApply(defaultInstance);
          
          Service service = Service.newService(metadataOperation.getNamespace(), metadataOperation.getGroup(),
                  metadataOperation.getServiceName(), metadataOperation.getMetadata().isEphemeral());
          Service singleton = ServiceManager.getInstance().getSingleton(service);
          namingMetadataManager.updateServiceMetadata(singleton, metadataOperation.getMetadata());
          
          assertTrue(addResponse.getSuccess());
          verify(namingMetadataManager).getServiceMetadata(service);
          verify(namingMetadataManager).updateServiceMetadata(service, serviceMetadata);
          
          // CHANGE
          operation.set(defaultInstance, "CHANGE");
          Response changeResponse = serviceMetadataProcessor.onApply(defaultInstance);
          
          assertTrue(changeResponse.getSuccess());
          verify(namingMetadataManager, times(2)).getServiceMetadata(service);
          verify(namingMetadataManager).updateServiceMetadata(service, serviceMetadata);
          
          // DELETE
          operation.set(defaultInstance, "DELETE");
          Response deleteResponse = serviceMetadataProcessor.onApply(defaultInstance);
          
          assertTrue(deleteResponse.getSuccess());
          verify(namingMetadataManager).removeServiceMetadata(service);
          verify(serviceStorage).removeData(service);
          
          // VERIFY
          operation.set(defaultInstance, "VERIFY");
          Response otherResponse = serviceMetadataProcessor.onApply(defaultInstance);
          
          assertFalse(otherResponse.getSuccess());
      }
      
      @Test
      void testGroup() {
          String group = serviceMetadataProcessor.group();
          
          assertEquals(Constants.SERVICE_METADATA, group);
      }
  }
  