Google is testing showing a single line from a Google+ review in a business’ listing within a 3-pack in the search results.  The review features a short amount of text from the review and the icon of the reviewer.

Here is how it looks:

Dr. Pete Meyers from Moz was the first to notice the test in their Mozcast crawl.

Google seems to be pulling the first review that shows up in the Google My Business local panel.  If it is too long for the space, Google will truncated it mid-word.

The review line doesn’t expand the local 3-pack at all.  Instead, it removes the open hours from the 3-pack instead.

This seems to be a very limited test.  Meyers was not able to replicate it again, and the same search query shows the usual results instead.