String[] values = parser.getFieldValues(document, "nonexistent");

        assertEquals("Non-existent field should return empty array", 0, values.length);
    }

    @Test
    public void test_getFieldValues_emptyList() throws Exception {
        Map<String, Object> document = new HashMap<>();
        document.put("field", new ArrayList<>());

        String[] values = parser.getFieldValues(document, "field");