parts = append(parts, CompletePart{
			PartNumber: partNumber,
			ETag:       canonicalizeETag(resp.ETag),
		})
	}

	var completeBytes []byte
	// Complete multipart upload parts.
	completeUploads := &CompleteMultipartUpload{
		Parts: parts,
	}
	completeBytes, err = xml.Marshal(completeUploads)
	if err != nil {
		t.Fatalf("Error XML encoding of parts: <ERROR> %s.", err)
	}