public function testMimetype() { $mimetype = FileUtils::mimetype('tests/data/404.png'); is('image/png', $mimetype); $mimetype = FileUtils::mimetype('tests/data/email.xlsx'); // is('application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',$mimetype); $mimetype = FileUtils::mimetype('tests/data/street_names.txt'); is('text/plain', $mimetype); }