}
	}
	// Benchmark ends here. Stop timer.
	b.StopTimer()
}

// Benchmark utility functions for ObjectLayer.PutObjectPart().
// Creates Object layer setup ( MakeBucket ) and then runs the PutObjectPart benchmark.
func runPutObjectPartBenchmark(b *testing.B, obj ObjectLayer, partSize int) {
	var err error
	// obtains random bucket name.
	bucket := getRandomBucketName()

	_, err := base64.RawURLEncoding.DecodeString(uploadID)
	if err != nil {
		return MalformedUploadID{
			UploadID: uploadID,
		}
	}
	return checkObjectArgs(ctx, bucket, object)
}

// Checks for PutObjectPart arguments validity, also validates if bucket exists.
func checkPutObjectPartArgs(ctx context.Context, bucket, object, uploadID string) error {
	return checkMultipartObjectArgs(ctx, bucket, object, uploadID)
}

	if err != nil {
		t.Fatal(err)
	}

	// Upload a part
	partData := bytes.Repeat([]byte("a"), 5*humanize.MiByte)
	md5Hex := getMD5Hash(partData)
	_, err = obj.PutObjectPart(ctx, bucket, object, res.UploadID, 1,
		mustGetPutObjReader(t, bytes.NewReader(partData), int64(len(partData)), md5Hex, ""),
		ObjectOptions{})
	if err != nil {
		t.Fatal(err)
	}