t.Fatalf("%s: <ERROR> %s", instanceType, err)
	}
	uploadID := res.UploadID

	// Create a byte array of 5MiB.
	data := bytes.Repeat([]byte("0123456789abcdef"), 5*humanize.MiByte/16)
	completedParts := CompleteMultipartUpload{}
	for i := 1; i <= 10; i++ {
		expectedETaghex := getMD5Hash(data)

		var calcPartInfo PartInfo

		// ListObjectParts
		router.Methods(http.MethodGet).Path("/{object:.+}").
			HandlerFunc(s3APIMiddleware(api.ListObjectPartsHandler)).
			Queries("uploadId", "{uploadId:.*}")
		// CompleteMultipartUpload
		router.Methods(http.MethodPost).Path("/{object:.+}").
			HandlerFunc(s3APIMiddleware(api.CompleteMultipartUploadHandler)).
			Queries("uploadId", "{uploadId:.*}")
		// NewMultipartUpload

				ChecksumSHA1:   pi.ChecksumSHA1,
			}
		}
		_, err = z.CompleteMultipartUpload(ctx, bucket, objInfo.Name, res.UploadID, parts, ObjectOptions{
			DataMovement: true,
			MTime:        objInfo.ModTime,
			NoAuditLog:   true,
		})
		if err != nil {
			err = fmt.Errorf("decommissionObject: CompleteMultipartUpload() %w", err)
		}
		return err
	}

		t.Fatalf("%s : %s", instanceType, err.Error())
	}

	// Complete multipart.
	parts := []CompletePart{
		{ETag: etag1, PartNumber: 1},
		{ETag: etag2, PartNumber: 2},
	}
	_, err = obj.CompleteMultipartUpload(context.Background(), bucket, object, uploadID, parts, ObjectOptions{})
	if err != nil {
		// Failed to complete multipart upload, abort.
		t.Fatalf("%s : %s", instanceType, err.Error())
	}

	// The only aim is to generate an HTTP request in a way that the relevant/registered end point is evoked/called.
	// Indicating that all parts are uploaded and initiating completeMultipartUpload.
	nilBucket := "dummy-bucket"
	nilObject := ""

	nilReq, err := newTestSignedRequestV4(http.MethodPost, getDeleteMultipleObjectsURL("", nilBucket), 0, nil, "", "", nil)
	if err != nil {