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.test.naming;
  
  import com.alibaba.nacos.Nacos;
  import com.alibaba.nacos.api.PropertyKeyConst;
  import com.alibaba.nacos.api.common.Constants;
  import com.alibaba.nacos.api.naming.NamingFactory;
  import com.alibaba.nacos.api.naming.NamingService;
  import com.alibaba.nacos.api.naming.listener.Event;
  import com.alibaba.nacos.api.naming.listener.EventListener;
  import com.alibaba.nacos.api.naming.listener.NamingEvent;
  import com.alibaba.nacos.api.naming.pojo.Instance;
  import com.alibaba.nacos.api.naming.pojo.ListView;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Disabled;
  import org.junit.jupiter.api.Test;
  import org.springframework.boot.test.context.SpringBootTest;
  import org.springframework.boot.test.web.server.LocalServerPort;
  
  import java.util.Arrays;
  import java.util.Collections;
  import java.util.List;
  import java.util.Properties;
  import java.util.concurrent.TimeUnit;
  
  import static com.alibaba.nacos.test.naming.NamingBase.TEST_GROUP;
  import static com.alibaba.nacos.test.naming.NamingBase.TEST_GROUP_1;
  import static com.alibaba.nacos.test.naming.NamingBase.TEST_GROUP_2;
  import static com.alibaba.nacos.test.naming.NamingBase.TEST_IP_4_DOM_1;
  import static com.alibaba.nacos.test.naming.NamingBase.TEST_PORT;
  import static com.alibaba.nacos.test.naming.NamingBase.TEST_SERVER_STATUS;
  import static com.alibaba.nacos.test.naming.NamingBase.randomDomainName;
  import static com.alibaba.nacos.test.naming.NamingBase.verifyInstanceList;
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNotEquals;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  /**
   * @author nkorange
   */
  @SpringBootTest(classes = Nacos.class, properties = {
          "server.servlet.context-path=/nacos"}, webEnvironment = SpringBootTest.WebEnvironment.DEFINED_PORT)
  class MultiTenantNamingITCase {
      
      private NamingService naming;
      
      private NamingService naming1;
      
      private NamingService naming2;
      
      @LocalServerPort
      private int port;
      
      private volatile List<Instance> instances = Collections.emptyList();
      
      @BeforeEach
      void init() throws Exception {
          Thread.sleep(6000L);
          NamingBase.prepareServer(port);
          
          naming = NamingFactory.createNamingService("127.0.0.1" + ":" + port);
          
          while (true) {
              if (!"UP".equals(naming.getServerStatus())) {
                  Thread.sleep(1000L);
                  continue;
              }
              break;
          }
          
          Properties properties = new Properties();
          properties.put(PropertyKeyConst.NAMESPACE, "namespace-1");
          properties.put(PropertyKeyConst.SERVER_ADDR, "127.0.0.1" + ":" + port);
          naming1 = NamingFactory.createNamingService(properties);
          
          properties = new Properties();
          properties.put(PropertyKeyConst.NAMESPACE, "namespace-2");
          properties.put(PropertyKeyConst.SERVER_ADDR, "127.0.0.1" + ":" + port);
          naming2 = NamingFactory.createNamingService(properties);
      }
      
      /**
       * @TCDescription : 多租户注册IP，port不相同实例
       * @TestStep :
       * @ExpectResult :
       */
      @Test
      void multipleTenantRegisterInstance() throws Exception {
          String serviceName = randomDomainName();
          
          naming1.registerInstance(serviceName, "11.11.11.11", 80);
          
          naming2.registerInstance(serviceName, "22.22.22.22", 80);
          
          naming.registerInstance(serviceName, "33.33.33.33", 8888);
          
          TimeUnit.SECONDS.sleep(5L);
          
          List<Instance> instances = naming1.getAllInstances(serviceName);
          assertEquals(1, instances.size());
          assertEquals("11.11.11.11", instances.get(0).getIp());
          assertEquals(80, instances.get(0).getPort());
          
          instances = naming2.getAllInstances(serviceName);
          assertEquals(1, instances.size());
          assertEquals("22.22.22.22", instances.get(0).getIp());
          assertEquals(80, instances.get(0).getPort());
          
          instances = naming.getAllInstances(serviceName);
          assertEquals(1, instances.size());
      }
      
      /**
       * @TCDescription : 多Group注册实例
       * @TestStep :
       * @ExpectResult :
       */
      @Test
      void multipleTenantMultiGroupRegisterInstance() throws Exception {
          String serviceName = randomDomainName();
          
          naming1.registerInstance(serviceName, TEST_GROUP_1, "11.11.11.11", 80);
          
          naming2.registerInstance(serviceName, TEST_GROUP_2, "22.22.22.22", 80);
          
          naming.registerInstance(serviceName, "33.33.33.33", 8888);
          
          TimeUnit.SECONDS.sleep(5L);
          
          List<Instance> instances = naming1.getAllInstances(serviceName);
          assertEquals(0, instances.size());
          
          instances = naming2.getAllInstances(serviceName, TEST_GROUP_2);
          assertEquals(1, instances.size());
          assertEquals("22.22.22.22", instances.get(0).getIp());
          assertEquals(80, instances.get(0).getPort());
          
          instances = naming.getAllInstances(serviceName);
          assertEquals(1, instances.size());
          
          naming1.deregisterInstance(serviceName, TEST_GROUP_1, "11.11.11.11", 80);
          naming1.deregisterInstance(serviceName, TEST_GROUP_2, "22.22.22.22", 80);
      }
      
      /**
       * @TCDescription : 多租户注册IP，port相同的实例
       * @TestStep :
       * @ExpectResult :
       */
      @Test
      void multipleTenantEqualIP() throws Exception {
          String serviceName = randomDomainName();
          naming1.registerInstance(serviceName, "11.11.11.11", 80);
          
          naming2.registerInstance(serviceName, "11.11.11.11", 80);
          
          naming.registerInstance(serviceName, "11.11.11.11", 80);
          
          TimeUnit.SECONDS.sleep(5L);
          
          List<Instance> instances = naming1.getAllInstances(serviceName);
          
          assertEquals(1, instances.size());
          assertEquals("11.11.11.11", instances.get(0).getIp());
          assertEquals(80, instances.get(0).getPort());
          
          instances = naming2.getAllInstances(serviceName);
          
          assertEquals(1, instances.size());
          assertEquals("11.11.11.11", instances.get(0).getIp());
          assertEquals(80, instances.get(0).getPort());
          
          instances = naming.getAllInstances(serviceName);
          assertEquals(1, instances.size());
      }
      
      /**
       * @TCDescription : 多租户注册IP，port相同的实例
       * @TestStep :
       * @ExpectResult :
       */
      @Test
      void multipleTenantSelectInstances() throws Exception {
          String serviceName = randomDomainName();
          naming1.registerInstance(serviceName, TEST_IP_4_DOM_1, TEST_PORT);
          
          naming2.registerInstance(serviceName, "22.22.22.22", 80);
          
          naming.registerInstance(serviceName, TEST_IP_4_DOM_1, TEST_PORT);
          
          TimeUnit.SECONDS.sleep(5L);
          
          List<Instance> instances = naming1.selectInstances(serviceName, true);
          
          assertEquals(1, instances.size());
          assertEquals(TEST_IP_4_DOM_1, instances.get(0).getIp());
          assertEquals(TEST_PORT, instances.get(0).getPort());
          
          instances = naming2.selectInstances(serviceName, false);
          assertEquals(0, instances.size());
          
          instances = naming.selectInstances(serviceName, true);
          assertEquals(1, instances.size());
      }
      
      /**
       * @TCDescription : 多租户,多Group注册IP，port相同的实例
       * @TestStep :
       * @ExpectResult :
       */
      @Test
      void multipleTenantGroupEqualIP() throws Exception {
          String serviceName = randomDomainName();
          naming1.registerInstance(serviceName, TEST_GROUP_1, "11.11.11.11", 80);
          
          naming2.registerInstance(serviceName, TEST_GROUP_2, "11.11.11.11", 80);
          
          naming.registerInstance(serviceName, Constants.DEFAULT_GROUP, "11.11.11.11", 80);
          
          TimeUnit.SECONDS.sleep(5L);
          
          List<Instance> instances = naming1.getAllInstances(serviceName);
          
          assertEquals(0, instances.size());
          
          instances = naming2.getAllInstances(serviceName, TEST_GROUP_2);
          
          assertEquals(1, instances.size());
          assertEquals("11.11.11.11", instances.get(0).getIp());
          assertEquals(80, instances.get(0).getPort());
          
          instances = naming.getAllInstances(serviceName);
          assertEquals(1, instances.size());
      }
      
      /**
       * @TCDescription : 多租户,多Group注册IP，port相同的实例, 通过group获取实例
       * @TestStep :
       * @ExpectResult :
       */
      @Test
      void multipleTenantGroupGetInstances() throws Exception {
          String serviceName = randomDomainName();
          System.out.println(serviceName);
          naming1.registerInstance(serviceName, TEST_GROUP_1, "11.11.11.11", 80);
          // will cover the instance before
          naming1.registerInstance(serviceName, TEST_GROUP_2, "11.11.11.11", 80);
          
          naming.registerInstance(serviceName, Constants.DEFAULT_GROUP, "11.11.11.11", 80);
          
          TimeUnit.SECONDS.sleep(5L);
          List<Instance> instances = naming1.getAllInstances(serviceName, TEST_GROUP);
          
          assertEquals(0, instances.size());
          
          instances = naming.getAllInstances(serviceName);
          assertEquals(1, instances.size());
          naming1.deregisterInstance(serviceName, TEST_GROUP_1, "11.11.11.11", 80);
          naming1.deregisterInstance(serviceName, TEST_GROUP_2, "11.11.11.11", 80);
      }
      
      /**
       * @TCDescription : 多租户同服务获取实例
       * @TestStep :
       * @ExpectResult :
       */
      @Test
      void multipleTenantGetServicesOfServer() throws Exception {
          
          String serviceName = randomDomainName();
          naming1.registerInstance(serviceName, "11.11.11.11", TEST_PORT, "c1");
          TimeUnit.SECONDS.sleep(5L);
          
          ListView<String> listView = naming1.getServicesOfServer(1, 200);
          
          naming2.registerInstance(serviceName, "33.33.33.33", TEST_PORT, "c1");
          TimeUnit.SECONDS.sleep(5L);
          ListView<String> listView1 = naming1.getServicesOfServer(1, 200);
          assertEquals(listView.getCount(), listView1.getCount());
      }
      
      /**
       * @TCDescription : 多租户, 多group，同服务获取实例
       * @TestStep :
       * @ExpectResult :
       */
      @Test
      void multipleTenantGroupGetServicesOfServer() throws Exception {
          
          String serviceName = randomDomainName();
          naming1.registerInstance(serviceName, TEST_GROUP_1, "11.11.11.11", TEST_PORT, "c1");
          // will cover the instance before
          naming1.registerInstance(serviceName, TEST_GROUP_2, "22.22.22.22", TEST_PORT, "c1");
          TimeUnit.SECONDS.sleep(5L);
          
          //服务不会删除，实例会注销
          ListView<String> listView = naming1.getServicesOfServer(1, 20, TEST_GROUP_1);
          
          naming2.registerInstance(serviceName, "33.33.33.33", TEST_PORT, "c1");
          TimeUnit.SECONDS.sleep(5L);
          ListView<String> listView1 = naming1.getServicesOfServer(1, 20, TEST_GROUP_1);
          assertEquals(listView.getCount(), listView1.getCount());
          assertNotEquals(0, listView1.getCount());
      }
      
      /**
       * @TCDescription : 多租户订阅服务
       * @TestStep :
       * @ExpectResult :
       */
      @Test
      void multipleTenantSubscribe() throws Exception {
          
          String serviceName = randomDomainName();
          
          naming1.subscribe(serviceName, new EventListener() {
              @Override
              public void onEvent(Event event) {
                  instances = ((NamingEvent) event).getInstances();
              }
          });
          
          naming1.registerInstance(serviceName, "11.11.11.11", TEST_PORT, "c1");
          naming2.registerInstance(serviceName, "33.33.33.33", TEST_PORT, "c1");
          
          while (instances.size() == 0) {
              TimeUnit.SECONDS.sleep(1L);
          }
          assertEquals(1, instances.size());
          
          TimeUnit.SECONDS.sleep(2L);
          assertTrue(verifyInstanceList(instances, naming1.getAllInstances(serviceName)));
      }
      
      /**
       * @TCDescription : 多租户多group订阅服务
       * @TestStep :
       * @ExpectResult :
       */
      @Test
      void multipleTenantGroupSubscribe() throws Exception {
          
          String serviceName = randomDomainName();
          
          naming1.subscribe(serviceName, TEST_GROUP_1, new EventListener() {
              @Override
              public void onEvent(Event event) {
                  instances = ((NamingEvent) event).getInstances();
              }
          });
          
          naming1.registerInstance(serviceName, "11.11.11.11", TEST_PORT, "c1");
          naming1.registerInstance(serviceName, TEST_GROUP_1, "33.33.33.33", TEST_PORT, "c1");
          
          while (instances.size() == 0) {
              TimeUnit.SECONDS.sleep(1L);
          }
          TimeUnit.SECONDS.sleep(2L);
          assertEquals(1, instances.size());
          
          TimeUnit.SECONDS.sleep(2L);
          assertTrue(verifyInstanceList(instances, naming1.getAllInstances(serviceName, TEST_GROUP_1)));
          
          naming1.deregisterInstance(serviceName, "11.11.11.11", TEST_PORT, "c1");
          naming1.deregisterInstance(serviceName, TEST_GROUP_1, "33.33.33.33", TEST_PORT, "c1");
      }
      
      /**
       * @TCDescription : 多租户取消订阅服务
       * @TestStep :
       * @ExpectResult :
       */
      @Test
      void multipleTenantUnSubscribe() throws Exception {
          
          String serviceName = randomDomainName();
          EventListener listener = new EventListener() {
              @Override
              public void onEvent(Event event) {
                  System.out.println(((NamingEvent) event).getServiceName());
                  instances = ((NamingEvent) event).getInstances();
              }
          };
          
          naming1.subscribe(serviceName, listener);
          naming1.registerInstance(serviceName, "11.11.11.11", TEST_PORT, "c1");
          naming2.registerInstance(serviceName, "33.33.33.33", TEST_PORT, "c1");
          
          while (instances.size() == 0) {
              TimeUnit.SECONDS.sleep(1L);
          }
          assertEquals(serviceName, naming1.getSubscribeServices().get(0).getName());
          assertEquals(0, naming2.getSubscribeServices().size());
          
          naming1.unsubscribe(serviceName, listener);
          
          TimeUnit.SECONDS.sleep(5L);
          assertEquals(0, naming1.getSubscribeServices().size());
          assertEquals(0, naming2.getSubscribeServices().size());
      }
      
      /**
       * @TCDescription : 多租户,多group下, 没有对应的group订阅，取消订阅服务
       * @TestStep :
       * @ExpectResult :
       */
      @Test
      void multipleTenantGroupNoSubscribeUnsubscribe() throws Exception {
          
          String serviceName = randomDomainName();
          EventListener listener = new EventListener() {
              @Override
              public void onEvent(Event event) {
                  System.out.println(((NamingEvent) event).getServiceName());
                  instances = ((NamingEvent) event).getInstances();
              }
          };
          
          naming1.subscribe(serviceName, TEST_GROUP_1, listener);
          naming1.registerInstance(serviceName, "11.11.11.11", TEST_PORT, "c1");
          naming1.registerInstance(serviceName, TEST_GROUP_2, "33.33.33.33", TEST_PORT, "c1");
          
          TimeUnit.SECONDS.sleep(3L);
          assertEquals(serviceName, naming1.getSubscribeServices().get(0).getName());
          assertEquals(0, naming2.getSubscribeServices().size());
          
          naming1.unsubscribe(serviceName, listener);    //取消订阅服务，没有订阅group
          TimeUnit.SECONDS.sleep(3L);
          assertEquals(1, naming1.getSubscribeServices().size());
          
          naming1.unsubscribe(serviceName, TEST_GROUP_1, listener);   //取消订阅服务，有订阅group
          TimeUnit.SECONDS.sleep(3L);
          assertEquals(0, naming1.getSubscribeServices().size());
          
          assertEquals(0, naming2.getSubscribeServices().size());
      }
      
      /**
       * @TCDescription : 多租户,多group下, 多个group订阅，查看服务的个数
       * @TestStep :
       * @ExpectResult :
       */
      @Test
      void multipleTenantGroupUnsubscribe() throws Exception {
          
          String serviceName = randomDomainName();
          EventListener listener = new EventListener() {
              @Override
              public void onEvent(Event event) {
                  System.out.println(((NamingEvent) event).getServiceName());
                  instances = ((NamingEvent) event).getInstances();
              }
          };
          
          naming1.subscribe(serviceName, Constants.DEFAULT_GROUP, listener);
          naming1.subscribe(serviceName, TEST_GROUP_2, listener);
          naming1.subscribe(serviceName, TEST_GROUP_1, listener);
          
          naming1.registerInstance(serviceName, "11.11.11.11", TEST_PORT, "c1");
          naming1.registerInstance(serviceName, TEST_GROUP_2, "33.33.33.33", TEST_PORT, "c1");
          
          while (instances.size() == 0) {
              TimeUnit.SECONDS.sleep(1L);
          }
          TimeUnit.SECONDS.sleep(2L);
          assertEquals(serviceName, naming1.getSubscribeServices().get(0).getName());
          assertEquals(3, naming1.getSubscribeServices().size());
          
          naming1.unsubscribe(serviceName, listener);
          naming1.unsubscribe(serviceName, TEST_GROUP_2, listener);
          TimeUnit.SECONDS.sleep(3L);
          assertEquals(1, naming1.getSubscribeServices().size());
          assertEquals(TEST_GROUP_1, naming1.getSubscribeServices().get(0).getGroupName());
          
          naming1.unsubscribe(serviceName, TEST_GROUP_1, listener);
      }
      
      /**
       * @TCDescription : 多租户获取server状态
       * @TestStep :
       * @ExpectResult :
       */
      @Test
      void multipleTenantServerStatus() throws Exception {
          assertEquals(TEST_SERVER_STATUS, naming1.getServerStatus());
          assertEquals(TEST_SERVER_STATUS, naming2.getServerStatus());
      }
      
      /**
       * @TCDescription : 多租户删除实例
       * @TestStep :
       * @ExpectResult :
       */
      @Test
      void multipleTenantDeregisterInstance() throws Exception {
          
          String serviceName = randomDomainName();
          
          naming1.registerInstance(serviceName, "22.22.22.22", TEST_PORT, "c1");
          naming2.registerInstance(serviceName, "22.22.22.22", TEST_PORT, "c1");
          
          List<Instance> instances = naming1.getAllInstances(serviceName);
          verifyInstanceListForNaming(naming1, 1, serviceName);
          
          assertEquals(1, naming1.getAllInstances(serviceName).size());
          
          naming1.deregisterInstance(serviceName, "22.22.22.22", TEST_PORT, "c1");
          TimeUnit.SECONDS.sleep(12);
          
          assertEquals(0, naming1.getAllInstances(serviceName).size());
          assertEquals(1, naming2.getAllInstances(serviceName).size());
      }
      
      
      /**
       * @TCDescription : 多租户, 多group，删除group不存在的实例
       * @TestStep :
       * @ExpectResult :
       */
      @Test
      @Disabled("nacos 2.0 deregister only judged by client and service")
      void multipleTenantGroupDeregisterInstance() throws Exception {
          
          String serviceName = randomDomainName();
          
          naming1.registerInstance(serviceName, "11.11.11.11", TEST_PORT, "c1");
          naming1.registerInstance(serviceName, "22.22.22.22", TEST_PORT, "c2");
          
          List<Instance> instances = naming1.getAllInstances(serviceName);
          verifyInstanceListForNaming(naming1, 2, serviceName);
          
          assertEquals(2, naming1.getAllInstances(serviceName).size());
          
          naming1.deregisterInstance(serviceName, TEST_GROUP_2, "22.22.22.22", TEST_PORT, "c1");
          TimeUnit.SECONDS.sleep(12);
          
          assertEquals(2, naming1.getAllInstances(serviceName).size());
      }
      
      /**
       * @TCDescription : 多租户, 多group，删除clusterName不存在的实例
       * @TestStep :
       * @ExpectResult :
       */
      @Test
      @Disabled("nacos 2.0 deregister only judged by client and service")
      void multipleTenantGroupClusterDeregisterInstance() throws Exception {
          
          String serviceName = randomDomainName();
          
          naming1.registerInstance(serviceName, "11.11.11.11", TEST_PORT, "c1");
          naming1.registerInstance(serviceName, "22.22.22.22", TEST_PORT, "c2");
          
          List<Instance> instances = naming1.getAllInstances(serviceName);
          verifyInstanceListForNaming(naming1, 2, serviceName);
          
          assertEquals(2, naming1.getAllInstances(serviceName).size());
          
          naming1.deregisterInstance(serviceName, "22.22.22.22", TEST_PORT);
          TimeUnit.SECONDS.sleep(3L);
          assertEquals(2, naming1.getAllInstances(serviceName).size());
          
          naming1.deregisterInstance(serviceName, "11.11.11.11", TEST_PORT, "c1");
          naming1.deregisterInstance(serviceName, "22.22.22.22", TEST_PORT, "c2");
      }
      
      /**
       * @TCDescription : 多租户下，选择一个健康的实例
       * @TestStep :
       * @ExpectResult :
       */
      @Test
      void multipleTenantSelectOneHealthyInstance() throws Exception {
          
          String serviceName = randomDomainName();
          
          naming1.registerInstance(serviceName, "22.22.22.22", TEST_PORT, "c2");
          naming2.registerInstance(serviceName, "22.22.22.22", TEST_PORT, "c3");
          
          List<Instance> instances = naming1.getAllInstances(serviceName);
          verifyInstanceListForNaming(naming1, 1, serviceName);
          
          assertEquals(1, naming1.getAllInstances(serviceName).size());
          
          Instance instance = naming1.selectOneHealthyInstance(serviceName, Arrays.asList("c2"));
          assertEquals("22.22.22.22", instance.getIp());
          
          naming2.deregisterInstance(serviceName, "22.22.22.22", TEST_PORT, "c3");
          TimeUnit.SECONDS.sleep(5);
          instance = naming1.selectOneHealthyInstance(serviceName);
          assertEquals("22.22.22.22", instance.getIp());
      }
      
      /**
       * @TCDescription : 多租户下，多group下，选择一个健康的实例
       * @TestStep :
       * @ExpectResult :
       */
      @Test
      void multipleTenantGroupSelectOneHealthyInstance() throws Exception {
          
          String serviceName = randomDomainName();
          naming1.registerInstance(serviceName, TEST_GROUP, "11.11.11.11", TEST_PORT, "c1");
          naming1.registerInstance(serviceName, TEST_GROUP_1, "22.22.22.22", TEST_PORT, "c2");
          naming1.registerInstance(serviceName, TEST_GROUP_2, "33.33.33.33", TEST_PORT, "c3");
          
          List<Instance> instances = naming1.getAllInstances(serviceName, TEST_GROUP);
          verifyInstanceListForNaming(naming1, 0, serviceName);
          
          assertEquals(0, naming1.getAllInstances(serviceName).size());   //defalut group
          
          Instance instance = naming1.selectOneHealthyInstance(serviceName, TEST_GROUP, Arrays.asList("c1"));
          assertEquals("11.11.11.11", instance.getIp());
          
          instance = naming1.selectOneHealthyInstance(serviceName, TEST_GROUP_1);
          assertEquals("22.22.22.22", instance.getIp());
          
          naming1.deregisterInstance(serviceName, TEST_GROUP, "11.11.11.11", TEST_PORT, "c1");
          naming1.deregisterInstance(serviceName, TEST_GROUP_1, "22.22.22.22", TEST_PORT, "c2");
          naming1.deregisterInstance(serviceName, TEST_GROUP_2, "33.33.33.33", TEST_PORT, "c3");
          
      }
      
      /**
       * @TCDescription : 多租户下，多group下，选择group不存在，一个健康的实例
       * @TestStep :
       * @ExpectResult :
       */
      @Test
      void multipleTenantNoGroupSelectOneHealthyInstance() throws Exception {
          assertThrows(IllegalStateException.class, () -> {
              
              String serviceName = randomDomainName();
              naming1.registerInstance(serviceName, TEST_GROUP, "11.11.11.11", TEST_PORT, "c1");
              naming1.registerInstance(serviceName, TEST_GROUP_1, "22.22.22.22", TEST_PORT, "c2");
              
              List<Instance> instances = naming1.getAllInstances(serviceName, TEST_GROUP);
              verifyInstanceListForNaming(naming1, 0, serviceName);
              
              Instance instance = naming1.selectOneHealthyInstance(serviceName, Arrays.asList("c1"));
              
              naming1.deregisterInstance(serviceName, TEST_GROUP, "11.11.11.11", TEST_PORT, "c1");
              naming1.deregisterInstance(serviceName, TEST_GROUP_1, "22.22.22.22", TEST_PORT, "c2");
              
          });
          
      }
      
      private void verifyInstanceListForNaming(NamingService naming, int size, String serviceName) throws Exception {
          int i = 0;
          while (i < 20) {
              List<Instance> instances = naming.getAllInstances(serviceName);
              if (instances.size() == size) {
                  break;
              } else {
                  TimeUnit.SECONDS.sleep(3);
                  i++;
              }
          }
      }
  }
  