content: package com.alibaba.fastjson2.v1issues.issue_1100;
  
  import com.alibaba.fastjson2.JSON;
  import com.alibaba.fastjson2.JSONObject;
  import com.alibaba.fastjson2.JSONWriter;
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  /**
   * Created by wenshao on 01/04/2017.
   */
  public class Issue1121 {
      @Test
      public void test_for_issue() throws Exception {
          JSONObject userObject = new JSONObject();
          userObject.put("name", "jack");
          userObject.put("age", 20);
  
          JSONObject result = new JSONObject();
          result.put("host", "127.0.0.1");
          result.put("port", 3306);
          result.put("user", userObject);
          result.put("admin", userObject);
  
          String json = JSON.toJSONString(result, JSONWriter.Feature.PrettyFormat);
          assertEquals("{\n" +
                  "\t\"host\":\"127.0.0.1\",\n" +
                  "\t\"port\":3306,\n" +
                  "\t\"user\":{\n" +
                  "\t\t\"name\":\"jack\",\n" +
                  "\t\t\"age\":20\n" +
                  "\t},\n" +
                  "\t\"admin\":{\n" +
                  "\t\t\"name\":\"jack\",\n" +
                  "\t\t\"age\":20\n" +
                  "\t}\n" +
                  "}", json);
  
          JSONObject jsonObject2 = JSON.parseObject(json);
          assertEquals(result, jsonObject2);
      }
  }
  