content: /*
   * Copyright 1999-2025 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.client.redo.data;
  
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNotEquals;
  
  class RedoDataTest {
      
      @Test
      void testGetRedoType() {
          RedoData<String> redoData = new RedoData<String>() {
          };
          // registered=true, unregistering=false, expectedRegistered=true, means data has been registered and match expected.
          redoData.setRegistered(true);
          redoData.setExpectedRegistered(true);
          redoData.setUnregistering(false);
          assertEquals(RedoData.RedoType.NONE, redoData.getRedoType());
          
          // registered=true, unregistering=false, expectedRegistered=true, means data has been registered but not match expected.
          redoData.setRegistered(true);
          redoData.setExpectedRegistered(false);
          redoData.setUnregistering(false);
          assertEquals(RedoData.RedoType.UNREGISTER, redoData.getRedoType());
          
          // registered=true, unregistering=true, expectedRegistered=false, means data has been registered and doing unregister.
          redoData.setRegistered(true);
          redoData.setExpectedRegistered(false);
          redoData.setUnregistering(true);
          assertEquals(RedoData.RedoType.UNREGISTER, redoData.getRedoType());
          
          // registered=false, unregistering=false, expectedRegistered=true, means data has been not registered and doing register.
          redoData.setRegistered(false);
          redoData.setExpectedRegistered(true);
          redoData.setUnregistering(false);
          assertEquals(RedoData.RedoType.REGISTER, redoData.getRedoType());
          
          // registered=false, unregistering=true, expectedRegistered=false, means data has been unregistered and match expected.
          redoData.setRegistered(false);
          redoData.setExpectedRegistered(false);
          redoData.setUnregistering(true);
          assertEquals(RedoData.RedoType.REMOVE, redoData.getRedoType());
          
          // registered=false, unregistering=true, expectedRegistered=true, means data has been unregistered but not match expected.
          redoData.setRegistered(false);
          redoData.setExpectedRegistered(true);
          redoData.setUnregistering(true);
          assertEquals(RedoData.RedoType.REGISTER, redoData.getRedoType());
      }
      
      @Test
      void testEqualsAndHashCode() {
          MockRedoData redoData = new MockRedoData();
          redoData.set("String");
          assertEquals(redoData, redoData);
          assertNotEquals(redoData, null);
          assertNotEquals(redoData, new RedoData<String>() {
          });
          MockRedoData redoData2 = new MockRedoData();
          redoData2.set("aaa");
          assertNotEquals(redoData, redoData2);
          redoData2.set("String");
          assertEquals(redoData, redoData2);
          assertEquals(redoData.hashCode(), redoData2.hashCode());
          redoData2.setRegistered(true);
          assertNotEquals(redoData, redoData2);
          redoData2.setRegistered(redoData.isRegistered());
          redoData2.setUnregistering(!redoData.isUnregistering());
          assertNotEquals(redoData, redoData2);
          assertEquals("String", redoData.get());
      }
      
      private static class MockRedoData extends RedoData<String> {
      }
  }