}
	err = xml.Unmarshal(mpartRespBytes, &mpartResp)
	if err != nil {
		t.Fatalf("[%s] Failed to unmarshal NewMultipartUpload response <ERROR> %v", instanceType, err)
	}

	// Upload a part for listing purposes.
	rec = httptest.NewRecorder()
	req, err = newTestSignedRequestV4(http.MethodPut,
		getPutObjectPartURL("", bucketName, testObject, mpartResp.UploadID, "1"),