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.config.server.utils;
  
  import com.alibaba.nacos.config.server.model.ConfigListenState;
  import com.alibaba.nacos.config.server.service.ConfigCacheService;
  import com.alibaba.nacos.sys.env.EnvUtil;
  import org.apache.commons.io.IOUtils;
  import org.junit.jupiter.api.AfterEach;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  import org.mockito.MockedStatic;
  import org.mockito.Mockito;
  import org.springframework.mock.env.MockEnvironment;
  import org.springframework.mock.web.MockHttpServletRequest;
  import org.springframework.mock.web.MockHttpServletResponse;
  
  import java.io.CharArrayReader;
  import java.io.CharArrayWriter;
  import java.io.IOException;
  import java.io.InputStream;
  import java.io.Reader;
  import java.io.Writer;
  import java.nio.charset.StandardCharsets;
  import java.util.HashMap;
  import java.util.Map;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.mockito.ArgumentMatchers.anyString;
  import static org.mockito.Mockito.times;
  import static org.mockito.Mockito.verify;
  import static org.mockito.Mockito.when;
  
  class MD5UtilTest {
      
      MockedStatic<ConfigCacheService> configCacheServiceMockedStatic;
      
      MockedStatic<Md5ComparatorDelegate> md5ComparatorDelegateMockedStatic;
      
      @BeforeEach
      void setUp() {
          MockEnvironment environment = new MockEnvironment();
          environment.setProperty("nacos.config.cache.type", "nacos");
          EnvUtil.setEnvironment(environment);
          configCacheServiceMockedStatic = Mockito.mockStatic(ConfigCacheService.class);
          md5ComparatorDelegateMockedStatic = Mockito.mockStatic(Md5ComparatorDelegate.class);
      }
      
      @AfterEach
      void tearDown() {
          configCacheServiceMockedStatic.close();
          md5ComparatorDelegateMockedStatic.close();
      }
      
      @Test
      void testCompareMd5() {
          Md5ComparatorDelegate md5ComparatorDelegate = Mockito.mock(Md5ComparatorDelegate.class);
          when(Md5ComparatorDelegate.getInstance()).thenReturn(md5ComparatorDelegate);
          
          when(ConfigCacheService.isUptodate(anyString(), anyString(), anyString(), anyString())).thenReturn(false);
          
          HashMap<String, ConfigListenState> clientMd5Map = new HashMap<>();
          clientMd5Map.put("test", new ConfigListenState("test"));
          
          MockHttpServletRequest request = new MockHttpServletRequest();
          request.addHeader("Vipserver-Tag", "test");
          MockHttpServletResponse response = new MockHttpServletResponse();
          
          when(md5ComparatorDelegate.compareMd5(request, response, clientMd5Map)).thenReturn(new HashMap<>());
          MD5Util.compareMd5(request, response, clientMd5Map);
          
          verify(md5ComparatorDelegate, times(1)).compareMd5(request, response, clientMd5Map);
          
      }
      
      @Test
      void testCompareMd5OldResult() {
          
          final MockedStatic<GroupKey2> groupKey2MockedStatic = Mockito.mockStatic(GroupKey2.class);
          
          HashMap<String, ConfigListenState> changedGroupKeys = new HashMap<>();
          changedGroupKeys.put("test", new ConfigListenState("testMd5"));
          
          String[] arr = new String[3];
          arr[0] = "test0";
          arr[1] = "test1";
          arr[2] = "test2";
          when(GroupKey2.parseKey(anyString())).thenReturn(arr);
          
          String actualValue = MD5Util.compareMd5OldResult(changedGroupKeys);
          
          assertEquals("test0:test1;", actualValue);
          
          groupKey2MockedStatic.close();
      }
      
      @Test
      void testCompareMd5ResultString() {
          
          final MockedStatic<GroupKey2> groupKey2MockedStatic = Mockito.mockStatic(GroupKey2.class);
          
          HashMap<String, ConfigListenState> changedGroupKeys = new HashMap<>();
          changedGroupKeys.put("test", new ConfigListenState("testMd5"));
          
          String[] arr = new String[3];
          arr[0] = "test0";
          arr[1] = "test1";
          arr[2] = "test2";
          when(GroupKey2.parseKey(anyString())).thenReturn(arr);
          
          try {
              String actualValue = MD5Util.compareMd5ResultString(changedGroupKeys);
              assertEquals("test0%02test1%02test2%01", actualValue);
          } catch (IOException e) {
              System.out.println(e.toString());
          }
          
          groupKey2MockedStatic.close();
      }
      
      @Test
      void testGetClientMd5Map() {
          
          String configKeysString =
                  "test0" + MD5Util.WORD_SEPARATOR_CHAR + "test1" + MD5Util.WORD_SEPARATOR_CHAR + "test2"
                          + MD5Util.LINE_SEPARATOR_CHAR;
          
          Map<String, ConfigListenState> actualValueMap = MD5Util.getClientMd5Map(configKeysString);
          assertEquals("test2", actualValueMap.get("test0+test1+public").getMd5());
          
      }
      
      @Test
      void testGetClientMd5MapForNewProtocol() {
          String configKeysString =
                  "test0" + MD5Util.WORD_SEPARATOR_CHAR + "test1" + MD5Util.WORD_SEPARATOR_CHAR + "test2"
                          + MD5Util.WORD_SEPARATOR_CHAR + "test3" + MD5Util.LINE_SEPARATOR_CHAR;
          
          Map<String, ConfigListenState> actualValueMap = MD5Util.getClientMd5Map(configKeysString);
          
          assertEquals("test2", actualValueMap.get("test0+test1+test3").getMd5());
      }
      
      @Test
      void testToStringV1() {
          
          try {
              InputStream input = IOUtils.toInputStream("test", StandardCharsets.UTF_8);
              String actualValue = MD5Util.toString(input, "UTF-8");
              assertEquals("test", actualValue);
          } catch (IOException e) {
              System.out.println(e.toString());
          }
      }
      
      @Test
      void testToStringV2() {
          
          try {
              Reader reader = new CharArrayReader("test".toCharArray());
              String actualValue = MD5Util.toString(reader);
              assertEquals("test", actualValue);
          } catch (IOException e) {
              System.out.println(e.toString());
          }
      }
      
      @Test
      void testCopy() {
          
          try {
              String content = "test";
              Reader input = new CharArrayReader("test".toCharArray());
              Writer output = new CharArrayWriter();
              long actualValue = MD5Util.copy(input, output);
              
              assertEquals(content.length(), actualValue);
              assertEquals(content, output.toString());
              
          } catch (IOException e) {
              System.out.println(e.toString());
          }
      }
      
  }
  