// Test with all special characters
        char[] plaintext = "!@#$%^&*()_+-=[]{}|;':\",./<>?`~\t\n\r".toCharArray();

        byte[] encrypted = storage.encryptCredentials(plaintext);
        char[] decrypted = storage.decryptCredentials(encrypted);

        assertArrayEquals(plaintext, decrypted, "Special characters should be preserved");

        // Clean up

}

/**
 * Returns the index of the first character in this string that is either a control character (like
 * `\u0000` or `\n`) or a non-ASCII character. Returns -1 if this string has no such characters.
 */
internal fun String.indexOfControlOrNonAscii(): Int {
  for (i in 0 until length) {
    val c = this[i]
    if (c <= '\u001f' || c >= '\u007f') {
      return i
    }
  }
  return -1
}

        assertEquals("Not Found:  Parent: ", exception.getMessage());
        assertNull(exception.getCause());
    }

    public void test_constructor_withSpecialCharacters() {
        // Test with URLs containing special characters
        String parentUrl = "http://example.com/parent?query=test&id=123";
        String url = "http://example.com/child#fragment";
        ContentNotFoundException exception = new ContentNotFoundException(parentUrl, url);

`secrets.compare_digest()` needs to take `bytes` or a `str` that only contains ASCII characters (the ones in English), this means it wouldn't work with characters like `á`, as in `Sebastián`.

To handle that, we first convert the `username` and `password` to `bytes` encoding them with UTF-8.

            assertEquals(longMessage, exception.getMessage());
        });

        // Test message with special characters
        String specialMessage = "Error: ñoñ-ASCII çhárácters & symbols!@#$%^&*()";
        assertDoesNotThrow(() -> {
            RuntimeCIFSException exception = new RuntimeCIFSException(specialMessage);

        // Test with special characters in message
        String message = "LDAP error: \n\t\r Special chars: @#$%^&*(){}[]|\\:;\"'<>,.?/~`";
        LdapOperationException exception = new LdapOperationException(message);

        assertEquals(message, exception.getMessage());
    }

    public void test_unicodeMessage() {
        // Test with Unicode characters in message

        assertEquals(message, exception.getMessage());
        assertNull(exception.getCause());
    }

    public void test_withSpecialCharactersInMessage() {
        // Test with special characters in message
        String message = "Error with special chars: \n\t\r\"'<>&";
        ScriptEngineException exception = new ScriptEngineException(message);

        assertEquals(message, exception.getMessage());

        assertEquals("Invalid parameter", nestedCause.getMessage());
    }

    public void test_messageWithSpecialCharacters() {
        // Test message with special characters
        String message = "Theme error: 日本語 & special <characters> \"quoted\" 'text'";
        ThemeException exception = new ThemeException(message);

        assertNotNull(exception);
        assertEquals(message, exception.getMessage());
    }

    String[] BAD_STRINGS = {
      String.valueOf(Character.MIN_LOW_SURROGATE),
      Character.MIN_LOW_SURROGATE + "xyz",
      "abc" + Character.MIN_LOW_SURROGATE,
      "abc" + Character.MIN_LOW_SURROGATE + "xyz",
      String.valueOf(Character.MAX_LOW_SURROGATE),
      Character.MAX_LOW_SURROGATE + "xyz",
      "abc" + Character.MAX_LOW_SURROGATE,
      "abc" + Character.MAX_LOW_SURROGATE + "xyz",
    };

    String[] BAD_STRINGS = {
      String.valueOf(Character.MIN_LOW_SURROGATE),
      Character.MIN_LOW_SURROGATE + "xyz",
      "abc" + Character.MIN_LOW_SURROGATE,
      "abc" + Character.MIN_LOW_SURROGATE + "xyz",
      String.valueOf(Character.MAX_LOW_SURROGATE),
      Character.MAX_LOW_SURROGATE + "xyz",
      "abc" + Character.MAX_LOW_SURROGATE,
      "abc" + Character.MAX_LOW_SURROGATE + "xyz",
    };