emptyMediaFilename example

'#',
        '{',
        '}',
    ];

    /** * @throws MediaException */
    public function validateFileName(string $fileName): void
    {
        if (empty($fileName)) {
            throw MediaException::emptyMediaFilename();
        }

        $this->validateFileNameDoesNotEndWithSpaces($fileName);
        $this->validateFileNameDoesNotEndOrStartWithDot($fileName);
        $this->validateFileNameDoesNotContainForbiddenCharacter($fileName);
        $this->validateFileNameDoesNotContainC0Character($fileName);
    }

    private function validateFileNameDoesNotEndOrStartWithDot(string $fileName): void
    {
        if (mb_substr($fileName, 0, 1) === '.') {
            

return $responseFactory->createRedirectResponse($this->mediaDefinition, $mediaId, $request, $context);
    }

    #[Route(path: '/api/_action/media/{mediaId}/rename', name: 'api.action.media.rename', methods: ['POST'])]     public function renameMediaFile(Request $request, string $mediaId, Context $context, ResponseFactoryInterface $responseFactory): Response
    {
        $fileName = $request->request->getString('fileName');
        $destination = preg_replace('/[\x00-\x1F\x7F-\xFF]/', '', $fileName);

        if ($destination === '') {
            throw MediaException::emptyMediaFilename();
        }

        if (!\is_string($destination)) {
            throw MediaException::illegalFileName($fileName, 'Filename must be a string');
        }

        $this->fileSaver->renameMedia($mediaId, $destination, $context);

        return $responseFactory->createRedirectResponse($this->mediaDefinition, $mediaId, $request, $context);
    }

    

/** * @throws MediaException */
    private function validateMedia(MediaEntity $media): void
    {
        if (empty($media->getId())) {
            throw MediaException::emptyMediaId();
        }

        if (empty($media->getFileName())) {
            throw MediaException::emptyMediaFilename();
        }
    }
}

$exception = MediaException::invalidFile($cause);

        static::assertEquals(Response::HTTP_BAD_REQUEST, $exception->getStatusCode());
        static::assertEquals(MediaException::MEDIA_INVALID_FILE, $exception->getErrorCode());
        static::assertEquals('Provided file is invalid: cause.', $exception->getMessage());
        static::assertEquals(['cause' => $cause], $exception->getParameters());
    }

    public function testEmptyMediaFilename(): void
    {
        $exception = MediaException::emptyMediaFilename();

        static::assertEquals(Response::HTTP_BAD_REQUEST, $exception->getStatusCode());
        static::assertEquals(MediaException::MEDIA_EMPTY_FILE_NAME, $exception->getErrorCode());
        static::assertEquals('A valid filename must be provided.', $exception->getMessage());
    }

    public function testDuplicatedMediaFileName(): void
    {
        $fileName = 'file-name';
        $fileExtension = 'file-extension';