// If the Request was created by Go via a real HTTP request,  RequestURI will
	// contain the original query string. If the Request was created in code, RequestURI
	// will be empty, and we will use the URL object instead
	u := req.URL
	if req.RequestURI != "" {
		parsedURL, err := url.ParseRequestURI(req.RequestURI)
		if err == nil {
			u = parsedURL
		}
	}
	return u
}

		if err != nil {
			t.Errorf("(%d) failed to create http.Request, got %v", i, err)
		}
		if testCase.expected != ErrNone {
			// Should be set since we are simulating a http server.
			req.RequestURI = req.URL.RequestURI()
			// Check if it matches!
			errCode := doesPresignV2SignatureMatch(req)
			if errCode != testCase.expected {

	expectedRequestURI := "/?" + expectedQuery.Encode()
	if !reflect.DeepEqual(res.RequestURI, expectedRequestURI) {
		t.Fatalf("Expected %#v, got %#v", expectedRequestURI, res.RequestURI)
	}

	// Look for expected header.
	expectedHeader := http.Header{}
	expectedHeader.Set("content-md5", "====test")
	expectedHeader.Set("host", "localhost:9000")

//
// returns ErrNone if matches. S3 errors otherwise.
func doesPresignV2SignatureMatch(r *http.Request) APIErrorCode {
	// r.RequestURI will have raw encoded URI as sent by the client.
	tokens := strings.SplitN(r.RequestURI, "?", 2)
	encodedResource := tokens[0]
	encodedQuery := ""
	if len(tokens) == 2 {
		encodedQuery = tokens[1]
	}

	var (
		filteredQueries []string

	header.Set("Host", r.Host)
	// Replace all '%' to '%%' so that printer format parser
	// to ignore URL encoded values.
	rawURI := strings.ReplaceAll(r.RequestURI, "%", "%%")
	req := struct {
		Method     string      `json:"method"`
		RequestURI string      `json:"reqURI"`
		Header     http.Header `json:"header"`
	}{r.Method, rawURI, header}

	var buffer bytes.Buffer
	enc := json.NewEncoder(&buffer)

	// Registering only the GetObject handler.
	apiRouter := initTestAPIEndPoints(obj, endpoints)
	f := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		r.RequestURI = r.URL.RequestURI()
		apiRouter.ServeHTTP(w, r)
	})
	return bucketName, f, nil
}

// prepare test backend.
// create FS/Erasure/ErasureSet backend.
// return object layer, backend disks.