It's one hour that I'm trying to change the name of reference from "Equation 1" to "(eq.1)". I found the following code
\usepackage{hyperref}
\def\equationautorefname~#1\null{Equation (#1)\null}
but it does not change anything. I thought it was a conflict with amsmath, but even eliminating it, it does not work. How can I implement that without loosing cross-reference link or without simply writing ref comand between parenthesis?
As stiffly requested, there's an example code.
\documentclass{article}
\usepackage[english]{babel}
\usepackage[colorlinks=true, allcolors=blue]{hyperref}
\begin{document}
There is the equation \autoref{eq:test}\
\begin{equation}
\label{eq:test}
1+1=2
\end{equation}
\end{document}


