content: /*
   * Copyright 1999-2024 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.config.server.service.query.handler;
  
  import com.alibaba.nacos.config.server.model.CacheItem;
  import com.alibaba.nacos.config.server.service.ConfigCacheService;
  import com.alibaba.nacos.config.server.service.query.model.ConfigQueryChainRequest;
  import com.alibaba.nacos.config.server.service.query.model.ConfigQueryChainResponse;
  import com.alibaba.nacos.config.server.utils.GroupKey2;
  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.InjectMocks;
  import org.mockito.Mock;
  import org.mockito.MockedStatic;
  import org.mockito.Mockito;
  import org.mockito.junit.jupiter.MockitoExtension;
  
  import java.io.IOException;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNull;
  import static org.mockito.ArgumentMatchers.any;
  import static org.mockito.ArgumentMatchers.anyString;
  import static org.mockito.Mockito.never;
  import static org.mockito.Mockito.times;
  import static org.mockito.Mockito.verify;
  import static org.mockito.Mockito.when;
  
  @ExtendWith(MockitoExtension.class)
  class ConfigChainEntryHandlerTest {
      
      @InjectMocks
      private ConfigChainEntryHandler configChainEntryHandler;
      
      private MockedStatic<GroupKey2> mockedStaticGroupKey2;
      
      private MockedStatic<ConfigCacheService> mockedStaticConfigCacheService;
      
      @Mock
      private ConfigQueryHandler nextHandler;
      
      @Mock
      private CacheItem cacheItem;
      
      @BeforeEach
      public void setUp() {
          mockedStaticGroupKey2 = Mockito.mockStatic(GroupKey2.class);
          mockedStaticConfigCacheService = Mockito.mockStatic(ConfigCacheService.class);
          configChainEntryHandler.setNextHandler(nextHandler);
      }
      
      @AfterEach
      public void tearDown() {
          mockedStaticGroupKey2.close();
          mockedStaticConfigCacheService.close();
      }
      
      @Test
      public void handleLockSuccessAndCacheItemNotNullShouldInvokeNextHandler() throws IOException {
          ConfigQueryChainRequest request = new ConfigQueryChainRequest();
          request.setDataId("dataId");
          request.setGroup("group");
          request.setTenant("tenant");
          
          String groupKey = "groupKey";
          mockedStaticGroupKey2.when(() -> GroupKey2.getKey(anyString(), anyString(), anyString())).thenReturn(groupKey);
          mockedStaticConfigCacheService.when(() -> ConfigCacheService.tryConfigReadLock(groupKey)).thenReturn(1);
          mockedStaticConfigCacheService.when(() -> ConfigCacheService.getContentCache(groupKey)).thenReturn(cacheItem);
          
          ConfigQueryChainResponse nextResponse = new ConfigQueryChainResponse();
          nextResponse.setResultCode(200);
          when(nextHandler.handle(request)).thenReturn(nextResponse);
          ConfigQueryChainResponse response = configChainEntryHandler.handle(request);
          
          assertEquals(200, response.getResultCode());
          verify(nextHandler, times(1)).handle(request);
      }
      
      @Test
      public void handleLockSuccessAndCacheItemNullShouldReturnNotFound() throws IOException {
          ConfigQueryChainRequest request = new ConfigQueryChainRequest();
          request.setDataId("dataId");
          request.setGroup("group");
          request.setTenant("tenant");
          
          String groupKey = "groupKey";
          mockedStaticGroupKey2.when(() -> GroupKey2.getKey(anyString(), anyString(), anyString())).thenReturn(groupKey);
          mockedStaticConfigCacheService.when(() -> ConfigCacheService.tryConfigReadLock(groupKey)).thenReturn(1);
          mockedStaticConfigCacheService.when(() -> ConfigCacheService.getContentCache(groupKey)).thenReturn(null);
          
          ConfigQueryChainResponse response = configChainEntryHandler.handle(request);
          
          assertEquals(ConfigQueryChainResponse.ConfigQueryStatus.CONFIG_NOT_FOUND, response.getStatus());
          verify(nextHandler, never()).handle(any());
      }
      
      @Test
      public void handleLockFailureShouldReturnConflict() throws IOException {
          ConfigQueryChainRequest request = new ConfigQueryChainRequest();
          request.setDataId("dataId");
          request.setGroup("group");
          request.setTenant("tenant");
          
          String groupKey = "groupKey";
          mockedStaticGroupKey2.when(() -> GroupKey2.getKey(anyString(), anyString(), anyString())).thenReturn(groupKey);
          mockedStaticConfigCacheService.when(() -> ConfigCacheService.tryConfigReadLock(groupKey)).thenReturn(-1);
          mockedStaticConfigCacheService.when(() -> ConfigCacheService.getContentCache(groupKey)).thenReturn(cacheItem);
          
          ConfigQueryChainResponse response = configChainEntryHandler.handle(request);
          
          assertEquals(ConfigQueryChainResponse.ConfigQueryStatus.CONFIG_QUERY_CONFLICT, response.getStatus());
          verify(nextHandler, never()).handle(any());
      }
      
      @Test
      public void handleLockSuccessAndNextHandlerNullShouldReturnEmptyResponse() throws IOException {
          configChainEntryHandler.setNextHandler(null);
          
          ConfigQueryChainRequest request = new ConfigQueryChainRequest();
          request.setDataId("dataId");
          request.setGroup("group");
          request.setTenant("tenant");
          
          String groupKey = "groupKey";
          mockedStaticGroupKey2.when(() -> GroupKey2.getKey(anyString(), anyString(), anyString())).thenReturn(groupKey);
          mockedStaticConfigCacheService.when(() -> ConfigCacheService.tryConfigReadLock(groupKey)).thenReturn(1);
          mockedStaticConfigCacheService.when(() -> ConfigCacheService.getContentCache(groupKey)).thenReturn(cacheItem);
          
          ConfigQueryChainResponse response = configChainEntryHandler.handle(request);
          assertNull(response.getStatus());
          verify(nextHandler, never()).handle(any());
      }
      
      @Test
      public void testGetName() {
          assertEquals("chainEntryHandler", configChainEntryHandler.getName());
      }
      
  }