MySQL test cases were always an important part of the MySQL source tree. They were particularly useful for storage engine developers and for other people extending MySQL, for example, at Facebook, Twitter, and Taobao. But also for Linux distributions which add their patches to the base MySQL, and even to users, who don’t modify the sources — they still want to confirm that a particular bug was fixed or that their custom-built binary has no obvious flaws.

In May, at the Ubuntu Developer Summit in Oakland, Oracle had 7 representatives there, and they promised that Oracle will be more contributor- and distribution-friendly. It is sad to see that instead of that the MySQL source tree is being closed down.

via Disappearing test cases or did another part of MySQL just become closed source? « The MariaDB Blog.