@Test
public void constructStruct() {

  assertEquals(
      new ExprTupleValue(
          new LinkedHashMap<String, ExprValue>() {
            {
              put("id", integerValue(1));
              put("state", stringValue("WA"));
            }
          }),
      tupleValue("{\"structV\":{\"id\":1,\"state\":\"WA\"}}").get("structV"));
}