How do I get all the occasions of <div data-test="value"> on a page?

So:
Code:
<body>
    <div class="section" data-test="123">
        <div class="top">

        </div>
        <div class="bottom" data-test="123">

        </div>
    </div>
    <div class="section">
        <p data-test="123">

        </p>
    </div>
</body>
...returns reference to the three occasions above and allows me to perform actions on the node they sit on.

I know $(".section").data("test") will get it but I want to get it for all occasions on any page with any HTML and any classes.

I tried $('body').data('test') and $('div').data('test') but nothing.

Thanks.