t.Fatalf("Put Object case %d:  Error uploading object: <ERROR> %v", i+1, err)
		}
	}

	testObject := "testobject"

	// Initiate Multipart upload for testing CopyObjectPartHandler.
	rec := httptest.NewRecorder()
	req, err := newTestSignedRequestV4(http.MethodPost, getNewMultipartURL("", bucketName, testObject),
		0, nil, credentials.AccessKey, credentials.SecretKey, nil)
	if err != nil {

	// execute the make bucket http request.
	response, err := s.client.Do(request)
	c.Assert(err, nil)
	// assert the response http status code.
	c.Assert(response.StatusCode, http.StatusOK)

	objectName := "testObject"
	// create HTTP request to upload the object.
	request, err = newTestSignedRequest(http.MethodPut, getPutObjectURL(s.endPoint, bucketName, objectName),
		int64(buffer.Len()), buffer, s.accessKey, s.secretKey, s.signer)

		return
	}

	vars := mux.Vars(r)
	dstBucket := vars["bucket"]
	dstObject, err := unescapePath(vars["object"])
	if err != nil {
		writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

	if s3Error := checkRequestAuthType(ctx, r, policy.PutObjectAction, dstBucket, dstObject); s3Error != ErrNone {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(s3Error), r.URL)
		return
	}

	}
	// Make sure to match ETag when proxying.
	if err = gopts.SetMatchETag(oi.ETag); err != nil {
		return nil, proxy, err
	}
	c := minio.Core{Client: tgt.Client}
	obj, _, h, err := c.GetObject(ctx, tgt.Bucket, object, gopts)
	if err != nil {
		return nil, proxy, err
	}
	closeReader := func() { obj.Close() }
	reader, err := fn(obj, h, closeReader)
	if err != nil {
		return nil, proxy, err