content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You 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.alipay.common.utils;
  
  import org.junit.Test;
  import org.junit.runner.RunWith;
  import org.mockito.junit.MockitoJUnitRunner;
  
  import static org.junit.Assert.*;
  
  @RunWith(MockitoJUnitRunner.class)
  public class JsonUtilsTest {
  
      /**
       * [单测用例]测试场景：输入为有效的JSON字符串
       */
      @Test
      public void testIsValidJson_ValidJson() {
          String validJson = "{\"key\":\"value\"}";
          assertTrue(JsonUtils.isValidJson(validJson));
      }
  
      /**
       * [单测用例]测试场景：输入为无效的JSON字符串
       */
      @Test
      public void testIsValidJson_InvalidJson() {
          String invalidJson = "{\"key\":\"value\"";
          assertFalse(JsonUtils.isValidJson(invalidJson));
      }
  
      /**
       * [单测用例]测试场景：输入为空字符串
       */
      @Test
      public void testIsValidJson_EmptyString() {
          String emptyString = "";
          assertFalse(JsonUtils.isValidJson(emptyString));
      }
  
      /**
       * [单测用例]测试场景：输入为null
       */
      @Test
      public void testIsValidJson_Null() {
          String nullString = null;
          assertFalse(JsonUtils.isValidJson(nullString));
      }
  
  }
  