content: package com.alibaba.json.bvt.parser.deser;
  
  import java.util.IdentityHashMap;
  import java.util.concurrent.ConcurrentHashMap;
  import java.util.concurrent.ConcurrentMap;
  
  import junit.framework.Assert;
  import junit.framework.TestCase;
  
  import com.alibaba.fastjson.JSON;
  
  public class ConcurrentHashMapDeserializerTest extends TestCase {
      @SuppressWarnings("rawtypes")
      public void test_1 () throws Exception {
          ConcurrentHashMap map = JSON.parseObject("{}", ConcurrentHashMap.class);
          Assert.assertEquals(0, map.size());
      }
  
      @SuppressWarnings("rawtypes")
      public void test_2() throws Exception {
          ConcurrentMap map = JSON.parseObject("{}", ConcurrentMap.class);
          Assert.assertEquals(0, map.size());
      }
      
      @SuppressWarnings("rawtypes")
      public void test_className() throws Exception {
          ConcurrentHashMap map = (ConcurrentHashMap) JSON.parse("{\"@type\":\"java.util.concurrent.ConcurrentHashMap\"}");
          Assert.assertEquals(0, map.size());
      }
      
      @SuppressWarnings("rawtypes")
      public void test_className1() throws Exception {
          IdentityHashMap map = (IdentityHashMap) JSON.parse("{\"@type\":\"java.util.IdentityHashMap\"}");
          Assert.assertEquals(0, map.size());
      }
      
      @SuppressWarnings("rawtypes")
      public void test_className2() throws Exception {
          IdentityHashMap map = (IdentityHashMap) JSON.parse("{\"@type\":\"java.util.IdentityHashMap\", \"id\":123}");
          Assert.assertEquals(1, map.size());
      }
      
      public void test_null () throws Exception {
          Assert.assertEquals(null, JSON.parseObject("null", ConcurrentHashMap.class));
          Assert.assertEquals(null, JSON.parseObject("null", ConcurrentMap.class));
      }
  }
  