)
    assertNull(
      Punycode.encode(a1000MaxCodePoint.repeat(2)),
    )
  }

  @Test fun invalidPunycode() {
    assertNull(Punycode.decode("xn--ls8h="))
  }

  private fun testEncodeDecode(
    unicode: String,
    punycode: String,
  ) {
    assertEquals(unicode, Punycode.decode(punycode))
    assertEquals(punycode, Punycode.encode(unicode))
  }

  private fun testDecodeOnly(

        // Test Unicode configuration is enabled by default
        assertTrue(cfg.isUseUnicode(), "Unicode should be enabled by default");
    }

    @Test
    public void testAsciiConfiguration() throws Exception {
        Configuration asciiCfg = new OffUnicodeConfig();
        assertFalse(asciiCfg.isUseUnicode(), "Unicode should be disabled in ASCII config");
    }

    @Test

        assertTrue(treeConnectCreate >= 0, "TreeConnectAndX.CreateDirectory batch limit should be non-negative");
    }

    /**
     * Test that batch limit respects Unicode settings
     */
    @Test
    @DisplayName("Batch limit configuration with Unicode enabled")
    public void testBatchLimitWithUnicodeEnabled() throws CIFSException {
        Properties props = new Properties();

            // Result should be either Unicode or ASCII fallback depending on default charset
            String expectedUnicode = String.valueOf(icon.getUnicodeChar());
            String expectedAscii = icon.getAsciiFallback();
            assertTrue(
                    result.equals(expectedUnicode) || result.equals(expectedAscii),
                    "Result should be either Unicode or ASCII fallback for " + icon + ", got: " + result);

The unicode package and associated support throughout the system has been upgraded from Unicode 15 to Unicode 17.
See the [Unicode 16.0.0](https://www.unicode.org/versions/Unicode16.0.0/) and
[Unicode 17.0.0](https://www.unicode.org/versions/Unicode17.0.0/)

  }

  /**
   * Asserts that a Unicode escaper does not escape the given character.
   *
   * @param escaper the non-null escaper to test
   * @param cp the Unicode code point to test
   */
  public static void assertUnescaped(UnicodeEscaper escaper, int cp) {
    Assert.assertNull(computeReplacement(escaper, cp));
  }

  /**

  }

  /**
   * Asserts that a Unicode escaper does not escape the given character.
   *
   * @param escaper the non-null escaper to test
   * @param cp the Unicode code point to test
   */
  public static void assertUnescaped(UnicodeEscaper escaper, int cp) {
    Assert.assertNull(computeReplacement(escaper, cp));
  }

  /**

    }

    /**
     * Returns the appropriate icon representation for the given terminal.
     * Tests if the terminal's charset can encode the Unicode character,
     * falling back to ASCII if not.
     *
     * @param terminal the terminal to get the icon for
     * @return the Unicode character if supported, otherwise the ASCII fallback
     */
    public String getIcon(Terminal terminal) {

    private final Configuration config;
    private final boolean unicode;

    /**
     * Constructs a file both directory info.
     *
     * @param config the configuration
     * @param unicode whether to use unicode encoding
     */
    public FileBothDirectoryInfo(final Configuration config, final boolean unicode) {
        this.config = config;
        this.unicode = unicode;
    }

    @Override
    public String getName() {

    // The char values \uFFFE and \uFFFF are explicitly not allowed in XML
    // (Unicode code points above \uFFFF are represented via surrogate pairs
    // which means they are treated as pairs of safe characters).
    builder.setSafeRange(Character.MIN_VALUE, '\uFFFD');
    // Unsafe characters are replaced with the Unicode replacement character.
    builder.setUnsafeReplacement("\uFFFD");

    /*