public function testWriteStreamBelowLimit()
 {
     $mockS3Client = $this->getS3Client();
     $mockS3Client->shouldReceive('putObject')->times(2);
     $adapter = new Adapter($mockS3Client, 'bucketname', 'prefix', ['Multipart' => 10 * 1024 * 1024]);
     $temp = tmpfile();
     fwrite($temp, $content = "some content");
     $adapter->writeStream('something', $temp, $config = new Config(['visibility' => 'private', 'mimetype' => 'text/plain', 'Expires' => 'it does', 'streamsize' => 5]));
     $adapter->updateStream('something', $temp, $config);
     fclose($temp);
 }