content: package com.alibaba.json.bvt.guava;
  
  import com.alibaba.fastjson.JSON;
  import com.alibaba.fastjson.serializer.SerializerFeature;
  import com.google.common.collect.ArrayListMultimap;
  import com.google.common.collect.TreeMultimap;
  import com.google.common.primitives.Ints;
  import junit.framework.TestCase;
  
  /**
   * Created by wenshao on 15/01/2017.
   */
  public class ArrayListMultimapTest extends TestCase {
      public void test_for_multimap() throws Exception {
          ArrayListMultimap<String, Integer> multimap = ArrayListMultimap.create();
          multimap.putAll("b", Ints.asList(2, 4, 6));
          multimap.putAll("a", Ints.asList(4, 2, 1));
          multimap.putAll("c", Ints.asList(2, 5, 3));
  
          String json = JSON.toJSONString(multimap, SerializerFeature.MapSortField);
          assertEquals("{\"a\":[4,2,1],\"b\":[2,4,6],\"c\":[2,5,3]}", json);
  
          TreeMultimap treeMultimap = TreeMultimap.create(multimap);
          String json2 = JSON.toJSONString(treeMultimap);
          assertEquals("{\"a\":[1,2,4],\"b\":[2,4,6],\"c\":[2,3,5]}", json2);
      }
  }
  