Bug_for_issue_283.java

package com.alibaba.json.bvt.bug;

import java.util.ArrayList;
import java.util.Collection;

import org.junit.Assert;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.TypeReference;

import junit.framework.TestCase;

public class Bug_for_issue_283 extends TestCase {

    public void test_for_issue() throws Exception {
        String jsons = "[[1,1,1,2,3],[2,3,12,3,4],[1],[2]]";

        Collection<Collection<Integer>> collections //
                = JSON.parseObject(jsons, new TypeReference<Collection<Collection<Integer>>>() {
                });
        
        Assert.assertEquals(4, collections.size());
        Assert.assertEquals(ArrayList.class, collections.getClass());
        
        Collection<Integer> firstItemCollection = collections.iterator().next();
        Assert.assertEquals(5, firstItemCollection.size());
        Assert.assertEquals(ArrayList.class, firstItemCollection.getClass());
    }
}