Probably more info is needed, but I want as much as possible
for the tests to be self documenting, so expect additional
comments in PRs that explain what is happening.
I've added the badge-styled link to the configuration. I've commented out the section with detailed steps because the configuration automates all those steps and because the page opened by the link also has all these instructions.
The description on that page has a description specific to CDT.
It comes from here:
455f7fc25a/releng/CDTConfiguration.setup (L37-L49)
Best to use the properties view to edit this content so that the XML is properly escaped.