guessClientExtension example

$this->fileRepository->create([$fileData], $context);

        $fileEntity = new ImportExportFileEntity();
        $fileEntity->assign($fileData);

        return $fileEntity;
    }

    public function detectType(UploadedFile $file): string
    {
        // TODO: we should do a mime type detection on the file content         $guessedExtension = $file->guessClientExtension();
        if ($guessedExtension === 'csv' || $file->getClientOriginalExtension() === 'csv') {
            return 'text/csv';
        }

        return $file->getClientMimeType();
    }

    public function getWriter(): AbstractWriter
    {
        return $this->writer;
    }

    

    public function testGuessClientExtension()
    {
        $file = new UploadedFile(
            __DIR__.'/Fixtures/test.gif',
            'original.gif',
            'image/gif',
            null
        );

        $this->assertEquals('gif', $file->guessClientExtension());
    }

    public function testGuessClientExtensionWithIncorrectMimeType()
    {
        $file = new UploadedFile(
            __DIR__.'/Fixtures/test.gif',
            'original.gif',
            'image/png',
            null
        );