content: package com.alibaba.fastjson2.primitves;
  
  import com.alibaba.fastjson2.JSON;
  import com.alibaba.fastjson2.JSONB;
  import com.alibaba.fastjson2.JSONWriter;
  import org.junit.jupiter.api.Test;
  
  import java.util.Arrays;
  import java.util.Collections;
  import java.util.Map;
  
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.junit.jupiter.api.Assertions.assertNull;
  
  public class CharValueArrayTest {
      @Test
      public void test_parse_null() {
          char[] bytes = JSON.parseObject("null", char[].class);
          assertNull(bytes);
      }
  
      @Test
      public void test_parse_null_jsonb() {
          char[] values = JSONB.parseObject(JSONB.toBytes((Map) null), char[].class);
          assertNull(values);
      }
  
      @Test
      public void test_parse_jsonb() {
          byte[] jsonbBytes = JSONB.toBytes(Arrays.asList(new Integer[]{101, 102}));
          char[] chars = JSONB.parseObject(jsonbBytes, char[].class);
          assertEquals(2, chars.length);
          assertEquals(101, chars[0]);
          assertEquals(102, chars[1]);
      }
  
      @Test
      public void test_parse() {
          char[] chars = JSON.parseObject("[101,102]", char[].class);
          assertEquals(2, chars.length);
          assertEquals(101, chars[0]);
          assertEquals(102, chars[1]);
      }
  
      @Test
      public void test_parse_str() {
          char[] chars = JSON.parseObject("[\"A\"]", char[].class);
          assertEquals(1, chars.length);
          assertEquals('A', chars[0]);
      }
  
      @Test
      public void test_parse_str_jsonb() {
          byte[] jsonbBytes = JSONB.toBytes(Collections.singletonList("A"));
          char[] chars = JSONB.parseObject(jsonbBytes, char[].class);
          assertEquals(1, chars.length);
          assertEquals('A', chars[0]);
      }
  
      @Test
      public void test_writeNull() {
          assertEquals("{\"values\":null}",
                  JSON.toJSONString(new VO(), JSONWriter.Feature.WriteNulls));
          assertEquals("{\"values\":null}",
                  new String(
                          JSON.toJSONBytes(new VO(), JSONWriter.Feature.WriteNulls)));
      }
  
      @Test
      public void test_writeNull2() {
          assertEquals("{}",
                  JSON.toJSONString(new VO2()));
  
          assertEquals("{\"values\":null}",
                  new String(
                          JSON.toJSONBytes(new VO2(), JSONWriter.Feature.WriteNulls)));
      }
  
      public static class VO {
          public char[] values;
      }
  
      public static class VO2 {
          private char[] values;
  
          public char[] getValues() {
              return values;
          }
  
          public void setValues(char[] values) {
              this.values = values;
          }
      }
  }
  