func TestGuessIsRPC(t *testing.T) {
	if guessIsRPCReq(nil) {
		t.Fatal("Unexpected return for nil request")
	}

	u, err := url.Parse("http://localhost:9000/minio/lock")
	if err != nil {
		t.Fatal(err)
	}

	r := &http.Request{
		Proto:  "HTTP/1.0",
		Method: http.MethodPost,
		URL:    u,
	}
	if !guessIsRPCReq(r) {
		t.Fatal("Test shouldn't fail for a possible net/rpc request.")
	}