content: package com.alibaba.fastjson2.date;
  
  import com.alibaba.fastjson2.JSON;
  import com.alibaba.fastjson2.JSONWriter;
  import com.alibaba.fastjson2.annotation.JSONField;
  import org.junit.jupiter.api.BeforeEach;
  import org.junit.jupiter.api.Test;
  
  import java.text.SimpleDateFormat;
  import java.util.Date;
  import java.util.Locale;
  import java.util.TimeZone;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  
  public class DateFieldTest2 {
      public TimeZone defaultTimeZone;
      public Locale defaultLocale;
  
      @BeforeEach
      protected void setUp() throws Exception {
          defaultTimeZone = TimeZone.getTimeZone("Asia/Shanghai");
          defaultLocale = Locale.CHINA;
      }
  
      @Test
      public void test_codec() throws Exception {
          V0 v = new V0();
          v.setValue(new Date());
  
          String text = JSON.toJSONString(v);
  
          SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd", defaultLocale);
          format.setTimeZone(defaultTimeZone);
          assertEquals("{\"value\":" + JSON.toJSONString(format.format(v.getValue())) + "}", text);
      }
  
      @Test
      public void test_codec_null_asm() throws Exception {
          V0 v = new V0();
  
          String text = JSON.toJSONString(v, JSONWriter.Feature.WriteMapNullValue);
          assertEquals("{\"value\":null}", text);
  
          V0 v1 = JSON.parseObject(text, V0.class);
  
          assertEquals(v1.getValue(), v.getValue());
      }
  
      @Test
      public void test_codec_null_1() throws Exception {
          V0 v = new V0();
  
          String text = JSON.toJSONString(v, JSONWriter.Feature.WriteMapNullValue, JSONWriter.Feature.WriteNullNumberAsZero);
          assertEquals("{\"value\":null}", text);
  
          V0 v1 = JSON.parseObject(text, V0.class);
  
          assertEquals(null, v1.getValue());
      }
  
      public static class V0 {
          @JSONField(format = "yyyy-MM-dd")
          private Date value;
  
          public Date getValue() {
              return value;
          }
  
          public void setValue(Date value) {
              this.value = value;
          }
      }
  }
  