Hey,
I updated one of my extensions to use PHPUnit 6+ and am having troubles getting the tests to run with older versions of MediaWiki. In particular, I'd like my tests to run with MW 1.27. I suspect this is somehow possible and has already been done in other extensions.
Cheers
-- Jeroen De Dauw | https://entropywins.wtf | https://keybase.io/jeroendedauw Software Crafter | Speaker | Student | Strategist | Contributor to Wikimedia and Open Source ~=[,,_,,]:3