content: /*
   * Copyright 1999-2023 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.api.config;
  
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNull;
  
  class ConfigChangeItemTest {
      
      @Test
      void testSetNewValue() {
          ConfigChangeItem item = new ConfigChangeItem("testKey", null, "testValue");
          item.setType(PropertyChangeType.ADDED);
          assertEquals("testKey", item.getKey());
          assertNull(item.getOldValue());
          assertEquals("testValue", item.getNewValue());
          assertEquals(PropertyChangeType.ADDED, item.getType());
          item.setOldValue("testValue");
          item.setNewValue("testValue2");
          item.setType(PropertyChangeType.MODIFIED);
          assertEquals("testKey", item.getKey());
          assertEquals("testValue", item.getOldValue());
          assertEquals("testValue2", item.getNewValue());
          assertEquals(PropertyChangeType.MODIFIED, item.getType());
          
          item.setKey("deletedKey");
          item.setType(PropertyChangeType.DELETED);
          assertEquals("deletedKey", item.getKey());
          assertEquals(PropertyChangeType.DELETED, item.getType());
      }
      
      @Test
      void testToString() {
          ConfigChangeItem item = new ConfigChangeItem("testKey", null, "testValue");
          item.setType(PropertyChangeType.ADDED);
          assertEquals("ConfigChangeItem{key='testKey', oldValue='null', newValue='testValue', type=ADDED}",
                  item.toString());
      }
  }