function testSaveRenditionsRemoveTmpDir()
 {
     $bucket = $this->getS3Bucket();
     $s3 = $this->getS3Client();
     $storage = new binarypool_storage_driver_s3($bucket['storage'], $s3, $this->getMockCache());
     $file1 = dirname(__FILE__) . '/../res/vw_golf.jpg';
     $file2 = dirname(__FILE__) . '/../res/emil_frey_logo.pdf';
     $tmpdir = $storage->getRenditionsDirectory('mydir');
     copy($file1, $tmpdir . '/vw_golf.jpg');
     $file1 = $tmpdir . '/vw_golf.jpg';
     copy($file2, $tmpdir . '/emil_frey_logo.pdf');
     $file2 = $tmpdir . '/emil_frey_logo.pdf';
     $renditions = array($file1, $file2);
     $storage->saveRenditions($renditions, 'mydir');
     $this->assertEqual(file_exists($file1), false);
     $this->assertEqual(file_exists($file2), false);
     $this->assertEqual(file_exists($tmpdir), false);
 }