String input;
        String escaped;
        String[] parsed;

        // Text with comma gets quoted, but parse preserves quotes
        input = "with,comma";
        escaped = KuromojiCSVUtil.quoteEscape(input); // "with,comma"
        parsed = KuromojiCSVUtil.parse(escaped);
        assertEquals(1, parsed.length);

 *   -n, --name name               : Name for the crawling session
 *   -w, --webConfigIds ids        : Comma-separated web config IDs
 *   -f, --fileConfigIds ids       : Comma-separated file config IDs
 *   -d, --dataConfigIds ids       : Comma-separated data config IDs
 *   -p, --properties path         : Properties file path
 *   -e, --expires days            : Expires for documents (in days)

        // Test toString with special characters
        String name = "special[]param";
        String[] values = { "[value]", ",comma,", "quote\"test" };
        RequestParameter param = new RequestParameter(name, values);

        String expected = "[special[]param, [[value], ,comma,, quote\"test]]";
        assertEquals(expected, param.toString());
    }

    @Test
    public void test_immutability() {

rate.limit.block.duration.ms=300000
# Retry-After header value in seconds.
rate.limit.retry.after.seconds=60
# Comma-separated list of whitelisted IPs (e.g., 127.0.0.1,::1).
rate.limit.whitelist.ips=127.0.0.1,::1
# Comma-separated list of blocked IPs.
rate.limit.blocked.ips=
# Comma-separated list of trusted proxy IPs. Only trust X-Forwarded-For/X-Real-IP from these IPs.
rate.limit.trusted.proxies=127.0.0.1,::1

        assertTrue(pattern.contains("secret"));
    }

    // Test array field parsing
    @Test
    public void test_arrayFieldParsing() {
        // Test parsing of comma-separated values
        String[] arrayFields = fessConfig.getIndexAdminArrayFields().split(",");
        assertNotNull(arrayFields);
        assertEquals(2, arrayFields.length);

        source.put("title", "Only");

        final String json = new JsonIndexExportFormatter().format(source, Collections.emptySet());

        assertTrue(json.contains("\"title\": \"Only\""));
        // No comma should appear with single field
        assertFalse(json.contains(","));
    }

    @Test
    public void test_jsonFormatter_booleanFalse() {
        final Map<String, Object> source = new LinkedHashMap<>();

     * comment: Comma-separated list of whitelisted IPs (e.g., 127.0.0.1,::1).
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getRateLimitWhitelistIps();

    /**
     * Get the value for the key 'rate.limit.blocked.ips'. <br>
     * The value is, e.g.  <br>
     * comment: Comma-separated list of blocked IPs.