public function testGetDefaultExtensionIsBasedOnMimeType()
{
$file = new File(__DIR__ . '/Fixtures/test');
$guesser = $this->createMockGuesser($file->getPath(), 'image/gif');
MimeTypeGuesser::getInstance()->register($guesser);
$this->assertEquals('.gif', $file->getDefaultExtension());
}
/**
* Returns the mime type of the file.
*
* The mime type is guessed using the functions finfo(), mime_content_type()
* and the system binary "file" (in this order), depending on which of those
* is available on the current operating system.
*
* @returns string The guessed mime type, e.g. "application/pdf"
*/
public function getMimeType()
{
$guesser = MimeTypeGuesser::getInstance();
return $guesser->guess($this->getPath());
}
