time.Sleep(time.Duration(rand.Int63n(int64(time.Second))))
			}
		}
	}()

	var (
		hr     *hash.Reader
		isSSEC = crypto.SSEC.IsEncrypted(objInfo.UserDefined)
	)

	var objectSize int64
	for _, partInfo := range objInfo.Parts {
		if isSSEC {
			hr, err = hash.NewReader(ctx, io.LimitReader(r, partInfo.Size), partInfo.Size, "", "", partInfo.ActualSize)
		} else {

	}()

	keepAliveTicker := time.NewTicker(500 * time.Millisecond)
	defer keepAliveTicker.Stop()

	enc := json.NewEncoder(w)
	ch := objectSpeedTest(ctx, speedTestOpts{
		objectSize:       size,
		concurrencyStart: concurrent,
		duration:         duration,
		autotune:         autotune,
		storageClass:     storageClass,
		bucketName:       customBucket,
		enableSha256:     enableSha256,

			}
		}
	}

	if _, ok := opts.ObjectAttributes[xhttp.ETag]; ok {
		OA.ETag = objInfo.ETag
	}

	if _, ok := opts.ObjectAttributes[xhttp.ObjectSize]; ok {
		OA.ObjectSize, _ = objInfo.GetActualSize()
	}

	if _, ok := opts.ObjectAttributes[xhttp.StorageClass]; ok {
		OA.StorageClass = filterStorageClass(ctx, objInfo.StorageClass)
	}

	ExecObjectLayerAPINilTest(t, nilBucket, nilObject, instanceType, apiRouter, nilReq)
}

// Wrapper for calling NewMultipartUploadParallel tests for both Erasure multiple disks and single node setup.
// The objective of the test is to initialte multipart upload on the same object 10 times concurrently,
// The UploadID from the response body is parsed and its existence is asserted with an attempt to ListParts using it.