* <br>See <a href="http://www.elasticsearch.org/guide/reference/java-api/query-dsl.html">documentation</a>
* <br>See <a href="http://www.elasticsearch.org/guide/reference/query-dsl/has-child-filter.html">documentation</a>
*/
@Test
public void hasChildFilter() throws Exception {
FilterBuilder qb = FilterBuilders.hasChildFilter("blog_tag",
QueryBuilders.termQuery("tag", "something"));
logger.info("Your query is : {}", qb);
// TODO Create a test here