function testFileExistsDirGetBucketReturnsNull()
 {
     $bucket = $this->getS3Bucket();
     $s3 = $this->getS3Client();
     $s3->expectOnce('getObjectInfo', array('bin.staticlocal.ch', 'test/abc/def', false));
     $s3->setReturnValue('getObjectInfo', false);
     $s3->expectOnce('getBucket', array('bin.staticlocal.ch', 'test/abc/def/'));
     $s3->setReturnValue('getBucket', null);
     $storage = new binarypool_storage_driver_s3($bucket['storage'], $s3, $this->getMockCache());
     $this->assertEqual($storage->fileExists('test/abc/def'), false);
 }