content: package com.alibaba.fastjson2.primitves;
  
  import com.alibaba.fastjson2.JSON;
  import com.alibaba.fastjson2.JSONReader;
  import com.alibaba.fastjson2.TestUtils;
  import com.alibaba.fastjson2.reader.FieldReader;
  import com.alibaba.fastjson2.reader.ObjectReader;
  import com.alibaba.fastjson2.reader.ObjectReaderCreator;
  import com.alibaba.fastjson2_vo.ListField1;
  import com.alibaba.fastjson2_vo.ListField2;
  import com.alibaba.fastjson2_vo.ListFinalField1;
  import org.junit.jupiter.api.Test;
  
  import java.lang.reflect.Field;
  import java.util.ArrayList;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertTrue;
  
  public class ListFieldTest {
      @Test
      public void test_0() throws Exception {
          ObjectReaderCreator[] creators = TestUtils.readerCreators();
  
          for (ObjectReaderCreator creator : creators) {
              Field field = ListField1.class.getField("v0000");
              FieldReader fieldWriter = creator.createFieldReader(
                      "value",
                      field.getGenericType(),
                      field);
  
              ObjectReader<ListField1> objectReader
                      = creator.createObjectReader(ListField1.class, fieldWriter);
  
              {
                  ListField1 vo = objectReader.readObject(
                          JSONReader
                                  .of("{\"value\":[101,\"102\"]}"), 0);
                  assertEquals(101, vo.v0000.get(0).intValue());
                  assertEquals(102, vo.v0000.get(1).intValue());
              }
              {
                  ListField1 vo = objectReader.readObject(
                          JSONReader
                                  .of("{\"value\":null}"), 0);
                  assertEquals(null, vo.v0000);
              }
          }
      }
  
      @Test
      public void test_0_readOnly() throws Exception {
          ObjectReaderCreator[] creators = TestUtils.readerCreators();
  
          for (ObjectReaderCreator creator : creators) {
              Field field = ListFinalField1.class.getField("v0000");
              FieldReader fieldWriter = creator.createFieldReader(
                      "value",
                      field.getGenericType(),
                      field);
  
              ObjectReader<ListFinalField1> objectReader
                      = creator.createObjectReader(ListFinalField1.class, fieldWriter);
  
              {
                  ListFinalField1 vo = objectReader.readObject(
                          JSONReader
                                  .of("{\"value\":[101,\"102\"]}"), 0);
                  assertEquals(101, vo.v0000.get(0).intValue());
                  assertEquals(102, vo.v0000.get(1).intValue());
              }
              {
                  ListFinalField1 vo = objectReader.readObject(
                          JSONReader
                                  .of("{\"value\":null}"), 0);
                  assertTrue(vo.v0000 == null || vo.v0000.isEmpty());
              }
          }
      }
  
      @Test
      public void test_2() {
          ListField2 vo = new ListField2();
          vo.v0000 = new ArrayList<>();
          vo.v0001 = new ArrayList<>();
  
          String str = JSON.toJSONString(vo);
          assertEquals("{\"v0000\":[],\"v0001\":[]}", str);
      }
  }
  