content: package com.alibaba.fastjson2.protobuf;
  
  import com.alibaba.fastjson2.JSON;
  import com.alibaba.fastjson2.JSONB;
  import com.alibaba.fastjson2.JSONObject;
  import com.alibaba.fastjson2.JSONWriter;
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  public class PersonTest {
      @Test
      public void test() {
          PersonOuterClass.Person john = PersonOuterClass.Person.newBuilder()
                  .setId(1234)
                  .setName("John Doe")
                  .setEmail("jdoe@example.com")
                  .build();
  
          String str = JSON.toJSONString(john);
          JSONObject jsonObject = JSON.parseObject(str);
          assertEquals(john.getEmail(), jsonObject.getString("email"));
          assertEquals(john.getId(), jsonObject.getIntValue("id"));
          assertEquals(john.getName(), jsonObject.getString("name"));
      }
  
      @Test
      public void test1() {
          PersonOuterClass.Person john = PersonOuterClass.Person.newBuilder()
                  .setId(1234)
                  .setName("John Doe")
                  .setEmail("jdoe@example.com")
                  .build();
  
          String str = JSON.toJSONString(john, JSONWriter.Feature.FieldBased);
          JSONObject jsonObject = JSON.parseObject(str);
          assertEquals(john.getEmail(), jsonObject.getString("email"));
          assertEquals(john.getId(), jsonObject.getIntValue("id"));
          assertEquals(john.getName(), jsonObject.getString("name"));
      }
  
      @Test
      public void test2() {
          PersonOuterClass.Person john = PersonOuterClass.Person.newBuilder()
                  .setId(1234)
                  .setName("John Doe")
                  .setEmail("jdoe@example.com")
                  .build();
  
          byte[] jsonbBytes = JSONB.toBytes(john, JSONWriter.Feature.FieldBased);
          JSONObject jsonObject = JSONB.parseObject(jsonbBytes);
          assertEquals(john.getEmail(), jsonObject.getString("email"));
          assertEquals(john.getId(), jsonObject.getIntValue("id"));
          assertEquals(john.getName(), jsonObject.getString("name"));
      }
  }
  