The most common page types that run across issues for this test are news pages, people pages, and events pages, as these often have listings with featured images next to a text link.
We have a policy in Siteimprove (enterprise app) to assist with checking this. It is titled "Adjacent Links." Note, the Siteimprove check only alerts that two links are next to each other, it does not verify if the links navigate to the same destination.
Linked images supplemented with a text link where both the image and text link navigate to the same destination must be presented to the user as a singular link. One of the following techniques must apply.
Option 1: The alt text of the image after the links are combined must be empty.
<a href="##"> <img alt="" src="imgsrc.png" /> <p>My Link Destination</p></a>
Option 2: The image is given aria-hidden="true" and tabindex="-1" so only the text link is utilized. If this is done, the image must have a text alternative that is consistent with the requirements of a functional image.
<a href="##" aria-hidden="true" tabindex="-1"> <img alt="My Link Destination" src="imgsrc.png"></a><a href="##"> <p>My link destination</p></a>