@Test
    public void testRomanLower() {
        assertEquals("i", AutoPageNumberUtils.asRomanNumeralsLower(1));
        assertEquals("xxvi", AutoPageNumberUtils.asRomanNumeralsLower(26));
        assertEquals("xxvii", AutoPageNumberUtils.asRomanNumeralsLower(27));
    }
Check lower-case Roman numerals numbers are generated based on the
input page number.
tika-parsers/tika-parsers-standard/tika-parsers-standard-modules/tika-parser-apple-module/src/test/java/org/apache/tika/parser/iwork/AutoPageNumberUtilsTest.java