}

    public void test_type_conversion_from_string() {
        Map<String, Object> doc = new HashMap<>();

        doc.put("intStr", "123");
        assertEquals(Integer.valueOf(123), DocumentUtil.getValue(doc, "intStr", Integer.class));

        doc.put("longStr", "123456789");
        assertEquals(Long.valueOf(123456789L), DocumentUtil.getValue(doc, "longStr", Long.class));