/**
  * Check if specified mime type is accepted.
  *
  * @param string $mimeType
  *
  * @return bool
  */
 public function isMimeTypeAccepted($mimeType)
 {
     $accepted = self::$acceptedMimeTypes->all();
     if (empty($accepted)) {
         return true;
     }
     return self::$acceptedMimeTypes->isAccepted($mimeType);
 }
 /**
  * Check file was uploaded successfully.
  *
  * @return bool
  */
 public function isValid()
 {
     if (false === ($this->mimeTypeValid = $this->acceptedMimeTypes->isAccepted($this->getMimeType()))) {
         return false;
     }
     $isOk = UPLOAD_ERR_OK === $this->error;
     return $this->test ? $isOk : $isOk && is_uploaded_file($this->getPathname());
 }