### Question:
QueryBuilders { static RangeQueryBuilder rangeQuery(String name) { return new RangeQueryBuilder(name); } private  QueryBuilders();   }### Answer:
@Test void range() throws Exception { assertEquals("{\"range\":{\"f\":{\"lt\":0}}}", toJson(QueryBuilders.rangeQuery("f").lt(0))); assertEquals("{\"range\":{\"f\":{\"gt\":0}}}", toJson(QueryBuilders.rangeQuery("f").gt(0))); assertEquals("{\"range\":{\"f\":{\"gte\":0}}}", toJson(QueryBuilders.rangeQuery("f").gte(0))); assertEquals("{\"range\":{\"f\":{\"lte\":0}}}", toJson(QueryBuilders.rangeQuery("f").lte(0))); assertEquals("{\"range\":{\"f\":{\"gt\":1,\"lt\":2}}}", toJson(QueryBuilders.rangeQuery("f").gt(1).lt(2))); assertEquals("{\"range\":{\"f\":{\"gt\":11,\"lt\":0}}}", toJson(QueryBuilders.rangeQuery("f").lt(0).gt(11))); assertEquals("{\"range\":{\"f\":{\"gt\":1,\"lte\":2}}}", toJson(QueryBuilders.rangeQuery("f").gt(1).lte(2))); assertEquals("{\"range\":{\"f\":{\"gte\":1,\"lte\":\"zz\"}}}", toJson(QueryBuilders.rangeQuery("f").gte(1).lte("zz"))); assertEquals("{\"range\":{\"f\":{\"gte\":1}}}", toJson(QueryBuilders.rangeQuery("f").gte(1))); assertEquals("{\"range\":{\"f\":{\"gte\":\"zz\"}}}", toJson(QueryBuilders.rangeQuery("f").gte("zz"))); assertEquals("{\"range\":{\"f\":{\"gt\":\"a\",\"lt\":\"z\"}}}", toJson(QueryBuilders.rangeQuery("f").gt("a").lt("z"))); assertEquals("{\"range\":{\"f\":{\"gte\":3}}}", toJson(QueryBuilders.rangeQuery("f").gt(1).gt(2).gte(3))); assertEquals("{\"range\":{\"f\":{\"lte\":3}}}", toJson(QueryBuilders.rangeQuery("f").lt(1).lt(2).lte(3))); }