content: /*
   * Copyright 1999-2020 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.push;
  
  import com.alibaba.nacos.api.naming.utils.NamingUtils;
  import com.alibaba.nacos.common.utils.FuzzyGroupKeyPattern;
  import com.alibaba.nacos.naming.core.v2.event.client.ClientOperationEvent;
  import com.alibaba.nacos.naming.core.v2.index.NamingFuzzyWatchContextService;
  import com.alibaba.nacos.naming.push.v2.task.FuzzyWatchPushDelayTaskEngine;
  import com.alibaba.nacos.naming.push.v2.task.FuzzyWatchSyncNotifyTask;
  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.junit.jupiter.MockitoExtension;
  
  import java.util.HashSet;
  import java.util.Set;
  
  import static com.alibaba.nacos.naming.push.NamingFuzzyWatchSyncNotifier.BATCH_SIZE;
  import static org.mockito.ArgumentMatchers.any;
  import static org.mockito.ArgumentMatchers.anyString;
  import static org.mockito.ArgumentMatchers.eq;
  import static org.mockito.Mockito.times;
  import static org.mockito.Mockito.verify;
  import static org.mockito.Mockito.when;
  
  @ExtendWith(MockitoExtension.class)
  public class NamingFuzzyWatchSyncNotifierTest {
      
      @Mock
      private NamingFuzzyWatchContextService namingFuzzyWatchContextService;
      
      @Mock
      private FuzzyWatchPushDelayTaskEngine fuzzyWatchPushDelayTaskEngine;
      
      NamingFuzzyWatchSyncNotifier namingFuzzyWatchSyncNotifier;
      
      @BeforeEach
      void before() {
          namingFuzzyWatchSyncNotifier = new NamingFuzzyWatchSyncNotifier(namingFuzzyWatchContextService,
                  fuzzyWatchPushDelayTaskEngine);
      }
      
      @AfterEach
      void after() {
      }
      
      @Test
      void testOnClientFuzzyWatchEventInit() {
          
          String groupKeyPattern = FuzzyGroupKeyPattern.generatePattern("service*", "group123", "namespace");
          
          Set<String> clientReceivedServiceKeys = new HashSet<>();
          for (int i = 0; i < BATCH_SIZE * 2; i++) {
              clientReceivedServiceKeys.add(NamingUtils.getServiceKey("namespace", "group123" + i, "service" + i));
          }
          Set<String> matchedServiceKeys = new HashSet<>();
          for (int i = BATCH_SIZE; i < BATCH_SIZE * 3; i++) {
              matchedServiceKeys.add(NamingUtils.getServiceKey("namespace", "group123" + i, "service" + i));
          }
          
          when(namingFuzzyWatchContextService.matchServiceKeys(eq(groupKeyPattern))).thenReturn(matchedServiceKeys);
          
          when(namingFuzzyWatchContextService.reachToUpLimit(eq(groupKeyPattern))).thenReturn(false);
          String clientId = "onn1234";
          boolean isInitializing = true;
          ClientOperationEvent.ClientFuzzyWatchEvent clientFuzzyWatchEvent = new ClientOperationEvent.ClientFuzzyWatchEvent(
                  groupKeyPattern, clientId, clientReceivedServiceKeys, isInitializing);
          namingFuzzyWatchSyncNotifier.onEvent(clientFuzzyWatchEvent);
          
          verify(fuzzyWatchPushDelayTaskEngine, times(2)).addTask(anyString(), any(FuzzyWatchSyncNotifyTask.class));
      }
      
      @Test
      void testOnClientFuzzyWatchEventInitFinish() {
          
          String groupKeyPattern = FuzzyGroupKeyPattern.generatePattern("service*", "group123", "namespace");
          
          String clientId = "onn1234";
          Set<String> clientReceivedServiceKeys = new HashSet<>();
          
          boolean isInitializing = true;
          
          Set<String> matchedServiceKeys = new HashSet<>();
          
          when(namingFuzzyWatchContextService.matchServiceKeys(eq(groupKeyPattern))).thenReturn(matchedServiceKeys);
          
          when(namingFuzzyWatchContextService.reachToUpLimit(eq(groupKeyPattern))).thenReturn(false);
          ClientOperationEvent.ClientFuzzyWatchEvent clientFuzzyWatchEvent = new ClientOperationEvent.ClientFuzzyWatchEvent(
                  groupKeyPattern, clientId, clientReceivedServiceKeys, isInitializing);
          namingFuzzyWatchSyncNotifier.onEvent(clientFuzzyWatchEvent);
          
          verify(fuzzyWatchPushDelayTaskEngine, times(1)).addTask(anyString(), any(FuzzyWatchSyncNotifyTask.class));
      }
      
      @Test
      void testOnClientFuzzyWatchEventDiffSync() {
          
          String groupKeyPattern = FuzzyGroupKeyPattern.generatePattern("service*", "group123", "namespace");
          
          Set<String> clientReceivedServiceKeys = new HashSet<>();
          for (int i = 0; i < BATCH_SIZE * 2; i++) {
              clientReceivedServiceKeys.add(NamingUtils.getServiceKey("namespace", "group123" + i, "service" + i));
          }
          
          Set<String> matchedServiceKeys = new HashSet<>();
          for (int i = BATCH_SIZE; i < BATCH_SIZE * 3; i++) {
              matchedServiceKeys.add(NamingUtils.getServiceKey("namespace", "group123" + i, "service" + i));
          }
          
          when(namingFuzzyWatchContextService.matchServiceKeys(eq(groupKeyPattern))).thenReturn(matchedServiceKeys);
          when(namingFuzzyWatchContextService.reachToUpLimit(eq(groupKeyPattern))).thenReturn(false);
          String clientId = "onn1234";
          boolean isInitializing = false;
          ClientOperationEvent.ClientFuzzyWatchEvent clientFuzzyWatchEvent = new ClientOperationEvent.ClientFuzzyWatchEvent(
                  groupKeyPattern, clientId, clientReceivedServiceKeys, isInitializing);
          namingFuzzyWatchSyncNotifier.onEvent(clientFuzzyWatchEvent);
          verify(fuzzyWatchPushDelayTaskEngine, times(2)).addTask(anyString(), any(FuzzyWatchSyncNotifyTask.class));
          
      }
      
      @Test
      void testOnClientFuzzyWatchEventWhenOverLoadModel() {
          
          String groupKeyPattern = FuzzyGroupKeyPattern.generatePattern("service*", "group123", "namespace");
          
          Set<String> clientReceivedServiceKeys = new HashSet<>();
          for (int i = 0; i < BATCH_SIZE * 2; i++) {
              clientReceivedServiceKeys.add(NamingUtils.getServiceKey("namespace", "group123" + i, "service" + i));
          }
          
          Set<String> matchedServiceKeys = new HashSet<>();
          for (int i = BATCH_SIZE; i < BATCH_SIZE * 3; i++) {
              matchedServiceKeys.add(NamingUtils.getServiceKey("namespace", "group123" + i, "service" + i));
          }
          
          when(namingFuzzyWatchContextService.matchServiceKeys(eq(groupKeyPattern))).thenReturn(matchedServiceKeys);
          
          when(namingFuzzyWatchContextService.reachToUpLimit(eq(groupKeyPattern))).thenReturn(true);
          String clientId = "onn1234";
          boolean isInitializing = false;
      
          ClientOperationEvent.ClientFuzzyWatchEvent clientFuzzyWatchEvent = new ClientOperationEvent.ClientFuzzyWatchEvent(
                  groupKeyPattern, clientId, clientReceivedServiceKeys, isInitializing);
          namingFuzzyWatchSyncNotifier.onEvent(clientFuzzyWatchEvent);
          verify(fuzzyWatchPushDelayTaskEngine, times(1)).addTask(anyString(), any(FuzzyWatchSyncNotifyTask.class));
          
      }
  }
  