String[] lines = output.split(System.getProperty("line.separator"));
        assertTrue(lines.length >= expectedLines);
    }

    @Test
    @DisplayName("Should handle hexdump with offset")
    void testHexdumpWithOffset() {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        PrintStream ps = new PrintStream(baos);

        // Create test data and dump from offset
        byte[] data = createTestData(64);