content: package com.alibaba.fastjson2.reader;
  
  import com.alibaba.fastjson2.JSONException;
  import com.alibaba.fastjson2.JSONReader;
  import com.alibaba.fastjson2.TestUtils;
  import com.alibaba.fastjson2.annotation.JSONCompiler;
  import com.alibaba.fastjson2.annotation.JSONField;
  import org.junit.jupiter.api.Test;
  
  import static org.junit.jupiter.api.Assertions.*;
  
  public class FieldReaderCharValueFuncTest {
      @Test
      public void test() {
          Bean bean = new Bean();
          ObjectReader<Bean> objectReader = TestUtils.createObjectReaderLambda(Bean.class);
          FieldReader fieldReader = objectReader.getFieldReader("value");
          fieldReader.accept(bean, "A");
          assertEquals('A', bean.value);
          assertNotNull(fieldReader.method);
  
          fieldReader.accept(bean, 'B');
          assertEquals('B', bean.value);
  
          assertThrows(JSONException.class, () -> fieldReader.accept(bean, new Object()));
  
          assertEquals(
                  'A',
                  objectReader.readObject(
                          JSONReader.of("{\"value\":\"A\"}"),
                          0
                  ).value
          );
      }
  
      @Test
      public void test1() {
          Bean bean = new Bean();
          ObjectReader<Bean> objectReader = ObjectReaderCreator.INSTANCE.createObjectReader(Bean.class);
          FieldReader fieldReader = objectReader.getFieldReader("value");
          fieldReader.accept(bean, "A");
          assertEquals('A', bean.value);
          assertNotNull(fieldReader.method);
  
          fieldReader.accept(bean, 'B');
          assertEquals('B', bean.value);
  
          assertThrows(JSONException.class, () -> fieldReader.accept(bean, new Object()));
  
          assertEquals(
                  'A',
                  objectReader.readObject(
                          JSONReader.of("{\"value\":\"A\"}"),
                          0
                  ).value
          );
      }
  
      @JSONCompiler(JSONCompiler.CompilerOption.LAMBDA)
      public static class Bean {
          private char value;
  
          public char getValue() {
              return value;
          }
  
          public void setValue(char value) {
              this.value = value;
          }
      }
  
      @Test
      public void test2() {
          Bean2 bean = new Bean2();
          ObjectReader objectReader = TestUtils.createObjectReaderLambda(Bean2.class);
          FieldReader fieldReader = objectReader.getFieldReader("value");
          assertThrows(Exception.class, () -> fieldReader.accept(bean, "123"));
          assertThrows(Exception.class, () -> fieldReader.accept(bean, 123));
          assertThrows(Exception.class, () -> fieldReader.accept(bean, (short) 123));
          assertThrows(Exception.class, () -> fieldReader.accept(bean, 123L));
          assertThrows(Exception.class, () -> fieldReader.accept(bean, 123F));
          assertThrows(Exception.class, () -> fieldReader.accept(bean, 123D));
      }
  
      @JSONCompiler(JSONCompiler.CompilerOption.LAMBDA)
      public static class Bean2 {
          public void setValue(char value) {
              throw new UnsupportedOperationException();
          }
      }
  
      @Test
      public void test3() {
          ObjectReader<Bean3> objectReader = TestUtils.createObjectReaderLambda(Bean3.class);
          assertEquals(
                  'A',
                  objectReader.readObject(
                          JSONReader.of("{\"id\":101, \"value\":\"A\"}")
                  ).value
          );
      }
  
      @Test
      public void test3_reflect() {
          ObjectReader<Bean3> objectReader = ObjectReaderCreator.INSTANCE.createObjectReader(Bean3.class);
          assertEquals(
                  'A',
                  objectReader.readObject(
                          JSONReader.of("{\"id\":101, \"value\":\"A\"}")
                  ).value
          );
      }
  
      @JSONCompiler(JSONCompiler.CompilerOption.LAMBDA)
      public static class Bean3 {
          private char value;
          public final int id;
  
          public Bean3(@JSONField(name = "id") int id) {
              this.id = id;
          }
  
          public char getValue() {
              return value;
          }
  
          public void setValue(char value) {
              this.value = value;
          }
      }
  }
  