content: /*
   *  Copyright 1999-2021 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;
  
  import com.alibaba.nacos.api.exception.NacosException;
  import com.alibaba.nacos.api.model.Page;
  import com.alibaba.nacos.api.naming.pojo.Instance;
  import com.alibaba.nacos.api.naming.pojo.ServiceInfo;
  import com.alibaba.nacos.api.naming.pojo.maintainer.ServiceDetailInfo;
  import com.alibaba.nacos.api.naming.pojo.maintainer.ServiceView;
  import com.alibaba.nacos.naming.constants.FieldsConstants;
  import com.alibaba.nacos.naming.core.v2.ServiceManager;
  import com.alibaba.nacos.naming.core.v2.index.ServiceStorage;
  import com.alibaba.nacos.naming.core.v2.metadata.NamingMetadataManager;
  import com.alibaba.nacos.naming.core.v2.metadata.ServiceMetadata;
  import com.alibaba.nacos.naming.core.v2.pojo.Service;
  import com.fasterxml.jackson.databind.node.ObjectNode;
  import org.junit.jupiter.api.AfterEach;
  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 java.util.Collections;
  import java.util.List;
  import java.util.Optional;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  import static org.junit.jupiter.api.Assertions.assertThrows;
  import static org.junit.jupiter.api.Assertions.fail;
  
  /**
   * {@link CatalogServiceV2Impl} unit tests.
   *
   * @author chenglu
   * @date 2021-08-03 19:56
   */
  @ExtendWith(MockitoExtension.class)
  class CatalogServiceV2ImplTest {
      
      private CatalogServiceV2Impl catalogServiceV2Impl;
      
      @Mock
      private ServiceStorage serviceStorage;
      
      @Mock
      private NamingMetadataManager metadataManager;
      
      @BeforeEach
      void setUp() {
          catalogServiceV2Impl = new CatalogServiceV2Impl(serviceStorage, metadataManager);
          ServiceManager serviceManager = ServiceManager.getInstance();
          Service service = Service.newService("A", "B", "C");
          serviceManager.getSingleton(service);
      }
      
      @AfterEach
      void tearDown() {
          ServiceManager serviceManager = ServiceManager.getInstance();
          Service service = Service.newService("A", "B", "C");
          serviceManager.removeSingleton(service);
          for (Service each : serviceManager.getSingletons("CatalogService")) {
              serviceManager.removeSingleton(each);
          }
      }
      
      @Test
      void testGetServiceDetail() throws NacosException {
          ServiceMetadata serviceMetadata = new ServiceMetadata();
          serviceMetadata.setProtectThreshold(0.75F);
          Mockito.when(metadataManager.getServiceMetadata(Mockito.any())).thenReturn(Optional.of(serviceMetadata));
          Mockito.when(serviceStorage.getClusters(Mockito.any())).thenReturn(Collections.singleton("C"));
          ServiceDetailInfo actual = catalogServiceV2Impl.getServiceDetail("A", "B", "C");
          assertEquals("C", actual.getServiceName());
          assertEquals("B", actual.getGroupName());
          assertEquals("none", actual.getSelector().getType());
          assertEquals(0, actual.getMetadata().size());
          assertEquals(0.75, actual.getProtectThreshold(), 0.1);
      }
      
      @Test
      void testGetServiceDetailNonExist() throws NacosException {
          assertThrows(NacosException.class, () -> {
              catalogServiceV2Impl.getServiceDetail("A", "BB", "CC");
          });
      }
      
      @Test
      void testListInstances() throws NacosException {
          Mockito.when(serviceStorage.getClusters(Mockito.any())).thenReturn(Collections.singleton("D"));
          ServiceInfo serviceInfo = new ServiceInfo();
          serviceInfo.setGroupName("B");
          serviceInfo.setName("C");
          Instance instance = new Instance();
          instance.setClusterName("D");
          instance.setIp("1.1.1.1");
          serviceInfo.setHosts(Collections.singletonList(instance));
          Mockito.when(serviceStorage.getData(Mockito.any())).thenReturn(serviceInfo);
          List<? extends Instance> instances = catalogServiceV2Impl.listInstances("A", "B", "C", "D");
          assertEquals(1, instances.size());
      }
      
      @Test
      void testListInstancesNonExistService() throws NacosException {
          assertThrows(NacosException.class, () -> {
              catalogServiceV2Impl.listInstances("A", "BB", "CC", "DD");
          });
      }
      
      @Test
      void testListInstancesNonExistCluster() throws NacosException {
          assertThrows(NacosException.class, () -> {
              catalogServiceV2Impl.listInstances("A", "B", "C", "DD");
          });
      }
      
      @Test
      void testPageListService() throws NacosException {
          ServiceInfo serviceInfo = new ServiceInfo();
          serviceInfo.setHosts(Collections.singletonList(new Instance()));
          Mockito.when(serviceStorage.getData(Mockito.any())).thenReturn(serviceInfo);
          ServiceMetadata metadata = new ServiceMetadata();
          metadata.setProtectThreshold(0.75F);
          Mockito.when(metadataManager.getServiceMetadata(Mockito.any())).thenReturn(Optional.of(metadata));
          
          ObjectNode obj = (ObjectNode) catalogServiceV2Impl.pageListService("A", "B", "C", 1, 10, null, false);
          assertEquals(1, obj.get(FieldsConstants.COUNT).asInt());
      }
      
      @Test
      void testPageListServiceNotSpecifiedName() throws NacosException {
          ServiceInfo serviceInfo = new ServiceInfo();
          serviceInfo.setHosts(Collections.singletonList(new Instance()));
          Mockito.when(serviceStorage.getData(Mockito.any())).thenReturn(serviceInfo);
          ServiceMetadata metadata = new ServiceMetadata();
          metadata.setProtectThreshold(0.75F);
          Mockito.when(metadataManager.getServiceMetadata(Mockito.any())).thenReturn(Optional.of(metadata));
          
          ObjectNode obj = (ObjectNode) catalogServiceV2Impl.pageListService("A", "", "", 1, 10, null, false);
          assertEquals(1, obj.get(FieldsConstants.COUNT).asInt());
      }
      
      @Test
      void testPageListServiceForIgnoreEmptyService() throws NacosException {
          ServiceInfo serviceInfo = new ServiceInfo();
          Mockito.when(serviceStorage.getData(Mockito.any())).thenReturn(serviceInfo);
          
          ObjectNode obj = (ObjectNode) catalogServiceV2Impl.pageListService("A", "B", "C", 1, 10, null, true);
          assertEquals(0, obj.get(FieldsConstants.COUNT).asInt());
      }
      
      @Test
      void testPageListServiceForPage() throws NacosException {
          ServiceInfo serviceInfo = new ServiceInfo();
          Mockito.when(serviceStorage.getData(Mockito.any())).thenReturn(serviceInfo);
          ServiceManager.getInstance().getSingleton(Service.newService("CatalogService", "CatalogService", "1"));
          ServiceManager.getInstance().getSingleton(Service.newService("CatalogService", "CatalogService", "2"));
          ServiceManager.getInstance().getSingleton(Service.newService("CatalogService", "CatalogService", "3"));
          
          ObjectNode obj = (ObjectNode) catalogServiceV2Impl.pageListService("CatalogService", "", "", 2, 1, null, false);
          assertEquals(3, obj.get(FieldsConstants.COUNT).asInt());
          assertEquals("2", obj.get(FieldsConstants.SERVICE_LIST).get(0).get("name").asText());
      }
      
      @Test
      void testListService() throws NacosException {
          ServiceInfo serviceInfo = new ServiceInfo();
          Mockito.when(serviceStorage.getData(Mockito.any())).thenReturn(serviceInfo);
          ServiceManager.getInstance().getSingleton(Service.newService("CatalogService", "CatalogService", "1"));
          ServiceManager.getInstance().getSingleton(Service.newService("CatalogService", "CatalogService", "2"));
          ServiceManager.getInstance().getSingleton(Service.newService("CatalogService", "CatalogService", "3"));
          Page<ServiceView> result = catalogServiceV2Impl.listService("CatalogService", "", "", 2, 1, false);
          assertNotNull(result);
          assertEquals(3, result.getTotalCount(), "Total service count should be 3");
          assertEquals(2, result.getPageNumber(), "Current page number should be 2");
          assertEquals(4, result.getPagesAvailable(), "PagesAvailable should = (totalCount / pageSize) + 1");
          assertEquals(1, result.getPageItems().size(), "Page size is 1, so only one item should be returned");
          
          ServiceView serviceView = result.getPageItems().get(0);
          assertEquals(serviceView.getName(), "2", "Service name should be '2' ");
          assertEquals("CatalogService", serviceView.getGroupName(), "Group name should be CatalogService");
      }
      
      @Test
      void testPageListServiceDetail() {
          try {
              ServiceMetadata metadata = new ServiceMetadata();
              Mockito.when(metadataManager.getServiceMetadata(Mockito.any())).thenReturn(Optional.of(metadata));
              
              Instance instance = new Instance();
              instance.setServiceName("C");
              instance.setClusterName("D");
              List<Instance> instances = Collections.singletonList(instance);
              ServiceInfo serviceInfo = new ServiceInfo();
              serviceInfo.setHosts(instances);
              Mockito.when(serviceStorage.getData(Mockito.any())).thenReturn(serviceInfo);
              
              Page<ServiceDetailInfo> result = catalogServiceV2Impl.pageListServiceDetail("A", "B", "C", 1, 10);
              
              assertEquals(1, result.getPageItems().size());
          } catch (NacosException e) {
              e.printStackTrace();
              fail(e.getMessage());
          }
      }
  }
  