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.exception.NacosException;
  import com.alibaba.nacos.api.naming.NamingFactory;
  import com.alibaba.nacos.api.naming.NamingService;
  import com.alibaba.nacos.api.naming.pojo.Instance;
  import org.junit.jupiter.api.AfterAll;
  import org.junit.jupiter.api.BeforeEach;
  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.List;
  import java.util.concurrent.TimeUnit;
  
  import static com.alibaba.nacos.test.naming.NamingBase.TEST_PORT;
  import static com.alibaba.nacos.test.naming.NamingBase.randomDomainName;
  import static com.alibaba.nacos.test.naming.NamingBase.verifyInstance;
  import static org.junit.jupiter.api.Assertions.assertNotSame;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  import static org.junit.jupiter.api.Assertions.fail;
  
  /**
   * Created by wangtong.wt on 2018/6/20.
   *
   * @author wangtong.wt
   * @date 2018/6/20
   */
  @SpringBootTest(classes = Nacos.class, properties = {
          "server.servlet.context-path=/nacos"}, webEnvironment = SpringBootTest.WebEnvironment.DEFINED_PORT)
  class SelectOneHealthyInstanceNamingITCase {
      
      private static NamingService naming;
      
      private static NamingService naming1;
      
      private static NamingService naming2;
      
      private static NamingService naming3;
      
      private static NamingService naming4;
      
      @LocalServerPort
      private int port;
      
      @AfterAll
      static void tearDown() throws NacosException {
          if (null != naming) {
              naming.shutDown();
          }
          if (null != naming1) {
              naming1.shutDown();
          }
          if (null != naming2) {
              naming2.shutDown();
          }
          if (null != naming3) {
              naming3.shutDown();
          }
          if (null != naming4) {
              naming4.shutDown();
          }
      }
      
      @BeforeEach
      void init() throws Exception {
          if (naming == null) {
              //TimeUnit.SECONDS.sleep(10);
              naming = NamingFactory.createNamingService("127.0.0.1" + ":" + port);
              naming1 = NamingFactory.createNamingService("127.0.0.1" + ":" + port);
              naming2 = NamingFactory.createNamingService("127.0.0.1" + ":" + port);
              naming3 = NamingFactory.createNamingService("127.0.0.1" + ":" + port);
              naming4 = NamingFactory.createNamingService("127.0.0.1" + ":" + port);
          }
      }
      
      /**
       * 获取一个健康的Instance
       *
       * @throws Exception
       */
      @Test
      void selectOneHealthyInstances() throws Exception {
          String serviceName = randomDomainName();
          naming.registerInstance(serviceName, "127.0.0.1", TEST_PORT);
          naming1.registerInstance(serviceName, "127.0.0.1", 60000);
          
          TimeUnit.SECONDS.sleep(2);
          Instance instance = naming.selectOneHealthyInstance(serviceName);
          
          List<Instance> instancesGet = naming.getAllInstances(serviceName);
          
          for (Instance instance1 : instancesGet) {
              if (instance1.getIp().equals(instance.getIp()) && instance1.getPort() == instance.getPort()) {
                  assertTrue(instance.isHealthy());
                  assertTrue(verifyInstance(instance1, instance));
                  return;
              }
          }
          
          fail();
      }
      
      /**
       * 获取指定单个cluster中一个健康的Instance
       *
       * @throws Exception
       */
      @Test
      void selectOneHealthyInstancesCluster() throws Exception {
          String serviceName = randomDomainName();
          naming.registerInstance(serviceName, "127.0.0.1", TEST_PORT, "c1");
          naming1.registerInstance(serviceName, "127.0.0.1", 60000, "c1");
          naming2.registerInstance(serviceName, "1.1.1.1", TEST_PORT, "c1");
          naming3.registerInstance(serviceName, "127.0.0.1", 60001, "c1");
          naming4.registerInstance(serviceName, "127.0.0.1", 60002, "c2");
          
          TimeUnit.SECONDS.sleep(2);
          Instance instance = naming.selectOneHealthyInstance(serviceName, Arrays.asList("c1"));
          
          assertNotSame("1.1.1.1", instance.getIp());
          assertTrue(instance.getPort() != 60002);
          
          List<Instance> instancesGet = naming.getAllInstances(serviceName);
          
          for (Instance instance1 : instancesGet) {
              if (instance1.getIp().equals(instance.getIp()) && instance1.getPort() == instance.getPort()) {
                  assertTrue(instance.isHealthy());
                  assertTrue(verifyInstance(instance1, instance));
                  return;
              }
          }
          
          fail();
      }
      
      /**
       * 获取指定多个cluster中一个健康的Instance
       *
       * @throws Exception
       */
      @Test
      void selectOneHealthyInstancesClusters() throws Exception {
          String serviceName = randomDomainName();
          naming.registerInstance(serviceName, "1.1.1.1", TEST_PORT, "c1");
          naming1.registerInstance(serviceName, "127.0.0.1", TEST_PORT, "c1");
          naming2.registerInstance(serviceName, "127.0.0.1", 60000, "c1");
          naming3.registerInstance(serviceName, "127.0.0.1", 60001, "c2");
          
          TimeUnit.SECONDS.sleep(2);
          Instance instance = naming.selectOneHealthyInstance(serviceName, Arrays.asList("c1", "c2"));
          assertNotSame("1.1.1.1", instance.getIp());
          
          List<Instance> instancesGet = naming.getAllInstances(serviceName);
          
          for (Instance instance1 : instancesGet) {
              if (instance1.getIp().equals(instance.getIp()) && instance1.getPort() == instance.getPort()) {
                  assertTrue(instance.isHealthy());
                  assertTrue(verifyInstance(instance1, instance));
                  return;
              }
          }
          
          fail();
      }
  }
  