edx/edx-platform — pull request #1358 by wedaly (2013-10-16 01:57:32+00:00)
Title: Wait for non-blank link in course-overview test

From the screenshots, it looks like the link *is* getting added correctly. I'm guessing it's initially blank but gets populated by JavaScript after load. Using `world.css_has_value` will protect against this by waiting for a non-empty value.