* `write(data)`: Writes `data` (`str` or `bytes`) to the file.
* `read(size)`: Reads `size` (`int`) bytes/characters of the file.
* `seek(offset)`: Goes to the byte position `offset` (`int`) in the file.
    * E.g., `await myfile.seek(0)` would go to the start of the file.

        assertEquals("fess.log\0.txt", AdminLogAction.sanitizeFilename("fess.log\0.txt"));
    }

    @Test
    public void test_security_unicodeCharacters() {
        // Full-width dots and other Unicode characters
        assertEquals("\uff0e\uff0e/test.log", AdminLogAction.sanitizeFilename("\uff0e\uff0e/test.log"));
    }

            assertEquals(expectedMimeType, mimeMap.getMimeType(extension));
        }

        @Test
        @DisplayName("Should handle extensions with special characters")
        void testSpecialCharacterExtensions() throws IOException {
            // Test extensions that are definitely not in the map
            assertEquals("application/octet-stream", mimeMap.getMimeType("file.ext"));

        },
    )

  /**
   * Permits alphanumerics, spaces, and these:
   *
   * ```
   *   ' () + , - . / : = ?
   * ```
   *
   * TODO(jwilson): constrain to printable string characters.
   */
  val PRINTABLE_STRING =
    BasicDerAdapter(
      name = "PRINTABLE STRING",
      tagClass = DerHeader.TAG_CLASS_UNIVERSAL,
      tag = 19L,
      codec =

        @ValueSource(strings = { "Simple ASCII", "Special chars: !@#$%^&*()", "Unicode: ñöt ascii ℃", "Mixed: ASCII + 中文 + Русский",
                "Emojis: 🎉🌟💻", "Very long string with multiple words and various characters 1234567890" })
        void testGetBytesWithVariousInputs(String input) {
            // When
            byte[] result = Strings.getBytes(input, StandardCharsets.UTF_8);

            // Then

		},
		config.HelpKV{
			Key:         config.Comment,
			Description: config.DefaultComment,
			Optional:    true,
			Type:        "sentence",
		},
	}
)

// Allows only Base64 URL encoding characters.
var validRoleIDRegex = regexp.MustCompile(`^[A-Za-z0-9_-]+$`)

// Args for authentication plugin.
type Args struct {
	URL         *xnet.URL
	AuthToken   string
	Transport   http.RoundTripper

        assertTrue(item.isUpdated());
        assertFalse(item.isDeleted());
    }

    @Test
    public void test_specialCharacters() {
        // Test with special characters
        String specialInput = "test@#$%^&*()_+-=[]{}|;':\",./<>?";
        StopwordsItem item = new StopwordsItem(1, specialInput);
        assertEquals(specialInput, item.getInput());

        assertEquals("value1", paramMap.get("key1"));
        assertEquals("value2", paramMap.get("key2"));
        assertEquals("value3", paramMap.get("key3"));

        // Test with special characters in keys and values
        value = "key.with.dots=value\nkey_with_underscores=value with spaces\nkey-with-dashes=value@#$%";
        paramMap = ParameterUtil.parse(value);
        assertEquals(3, paramMap.size());

        String writtenPath = readStringFromBuffer(buffer, 12, written - 12);
        assertEquals("\\test\\", writtenPath);
    }

    @Test
    @DisplayName("Test with special characters in path")
    void testWithSpecialCharactersInPath() {
        trans2FindFirst2 = new Trans2FindFirst2(mockConfig, "\\test\\path with spaces", "*.txt", 0x16, 10, 1024);

        byte[] buffer = new byte[256];

http://\u4f60\u597d\u4f60\u597d  s:http p:/ h:xn--6qqa088eba

# Invalid escaped characters should fail and the percents should be
# escaped. https://www.w3.org/Bugs/Public/show_bug.cgi?id=24191
http://%zz%66%a.com

# If we get an invalid character that has been escaped.
http://%25
http://hello%00

# Escaped numbers should be treated like IP addresses if they are.