content: package com.alibaba.fastjson2.autoType;
  
  import com.alibaba.fastjson2.JSONB;
  import com.alibaba.fastjson2.JSONReader;
  import com.alibaba.fastjson2.JSONWriter;
  import org.junit.jupiter.api.Test;
  
  import java.util.ArrayList;
  import java.util.LinkedList;
  import java.util.List;
  import java.util.concurrent.TimeUnit;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNotNull;
  
  public class AutoTypeTest16_enums {
      @Test
      public void test_1() throws Exception {
          Bean1 bean = new Bean1();
          bean.values = new LinkedList<>();
          bean.values.add(TimeUnit.DAYS);
          bean.values.add(TimeUnit.SECONDS);
          bean.values.add(TimeUnit.DAYS);
  
          byte[] bytes = JSONB.toBytes(bean, JSONWriter.Feature.WriteClassName, JSONWriter.Feature.FieldBased, JSONWriter.Feature.ReferenceDetection);
  
          JSONB.dump(bytes);
  
          Bean1 bean2 = (Bean1) JSONB.parseObject(bytes, Object.class, JSONReader.Feature.SupportAutoType, JSONReader.Feature.FieldBased);
          assertNotNull(bean2);
          assertNotNull(bean2.values);
          assertEquals(bean.values.getClass(), bean2.values.getClass());
          assertEquals(bean.values.size(), bean2.values.size());
          assertEquals(bean.values.get(0), bean2.values.get(0));
          assertEquals(bean.values.get(1), bean2.values.get(1));
      }
  
      public static class Bean1 {
          public List<TimeUnit> values;
      }
  
      @Test
      public void test_2() throws Exception {
          Bean2 bean = new Bean2();
          bean.values = new LinkedList<>();
  
          bean.values.add(new Item(new Child(11), new Child(12)));
          bean.values.add(new Item(new Child(21), new Child(22)));
  
          byte[] bytes = JSONB.toBytes(bean, JSONWriter.Feature.WriteClassName, JSONWriter.Feature.FieldBased, JSONWriter.Feature.ReferenceDetection);
  
          Bean2 bean2 = (Bean2) JSONB.parseObject(bytes, Object.class, JSONReader.Feature.SupportAutoType, JSONReader.Feature.FieldBased);
          assertNotNull(bean2);
          assertNotNull(bean2.values);
          assertEquals(bean.values.getClass(), bean2.values.getClass());
          assertEquals(bean.values.size(), bean2.values.size());
          assertEquals(bean.values.get(0).getClass(), bean2.values.get(0).getClass());
  
          JSONB.dump(bytes);
      }
  
      public static class Bean2 {
          public List<Item> values;
      }
  
      public static class Item {
          List<Child> children;
  
          public Item() {
          }
  
          public Item(Child child1, Child child2) {
              children = new ArrayList<>();
              children.add(child1);
              children.add(child2);
          }
      }
  
      public static class Child {
          public int id;
  
          public Child(int id) {
              this.id = id;
          }
      }
  }
  