import java.util.List;
import java.util.function.Consumer;
import java.util.stream.Stream;
import org.jspecify.annotations.Nullable;

/**
 * A readable source of characters, such as a text file. Unlike a {@link Reader}, a {@code
 * CharSource} is not an open, stateful stream of characters that can be read and closed. Instead,
 * it is an immutable <i>supplier</i> of {@code Reader} instances.
 *
 * <p>{@code CharSource} provides two kinds of methods:
 *

        assertEquals("", testImplementation.getFullUNCPath());
    }

    @Test
    @DisplayName("Test with special characters in paths")
    void testWithSpecialCharacters() {
        // Test path with spaces and special characters
        String specialPath = "/share/folder name/file with spaces & special!@#$%.txt";
        testImplementation.setPath(specialPath);

  }

  /**
   * Tests that specifying any alphanumeric characters as 'safe' causes an {@link
   * IllegalArgumentException}.
   */
  public void testBadArguments_badchars() {
    String msg = "Alphanumeric characters are always 'safe' and should not be explicitly specified";
    IllegalArgumentException expected =

    }

    /*
     * GWT claims to support java.lang.Character's char-classification methods, but it actually only
     * works for ASCII. So for now, assume any non-ASCII characters are valid. The only place this
     * seems to be documented is here:
     * https://groups.google.com/d/topic/google-web-toolkit-contributors/1UEzsryq1XI
     *
     * <p>ASCII characters in the part are expected to be valid per RFC 1035, with underscore also

        assertNull(exception.getCause());
    }

    @Test
    public void test_constructor_withSpecialCharacters() {
        // Test constructor with special characters
        String type = "Token-Type_123!@#";
        String message = "Error: Token contains special characters <>&\"'";
        InvalidAccessTokenException exception = new InvalidAccessTokenException(type, message);

        assertEquals(type, exception.getType());

    if (size == i + 1L) return null // Dangling escape.
    result.write(this, i)
    // Consume '\'.
    readByte()
    result.write(this, 1L) // The escaped character.
  }
}

/**
 * Consumes and returns a non-empty token, terminating at special characters in
 * [TOKEN_DELIMITERS]. Returns null if the buffer is empty or prefixed with a delimiter.
 */
private fun Buffer.readToken(): String? {

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

    @Test
    public void test_constructor_withSpecialCharacters() {
        // Test with special characters in message
        String message = "Search not supported: \n\t!@#$%^&*(){}[]|\\:;\"'<>,.?/~`";
        UnsupportedSearchException exception = new UnsupportedSearchException(message);

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

    @Test
    public void test_constructor_withSpecialCharactersInMessage() {
        // Test constructor with special characters in message
        final String message = "Job failed with special chars: \n\t\r\"'<>&";
        final JobProcessingException exception = new JobProcessingException(message);

        assertNotNull(exception);

    }

    @Test
    public void testEncodingSpecialCharacters() {
        CurlRequest request = new CurlRequest(Method.GET, "https://example.com");

        // Test encoding of special characters
        request.param("query", "hello world & more");
        request.param("special", "ñ€±");

        // Should not throw exception
        assertNotNull(request);
    }

    @Test

    private static final long serialVersionUID = 0;
  }

  /**
   * Creates a {@code HashCode} from a hexadecimal ({@code base 16}) encoded string. The string must
   * be at least 2 characters long, and contain only valid, lower-cased hexadecimal characters.
   *
   * <p>This method accepts the exact format generated by {@link #toString}. If you require more