I am in a weird situation under Ubuntu 18.04.2 LTS (using bash) :
I installed git via apt-get and everything works fine. However, when I want to autocomplete commands via git (I did not do anything for this to work, it is just a reflex to hit tab all the time), cTest starts.
It is strange as hell and I don't get how this can happen. Of course, cTest finds nothing and tells me that "No tests were found !!!".
Does anyone has an idea about how to fix this ?
Finally found a related post answering my question.
In short, the git version coming with ubuntu, starting from version 12.10, actually contains and/or calls a test function. Having a test alias in the .bashrc file redirects the call to that alias.
However, the reason why hitting Tab while writing a git command triggered any kind of test function remains unknown.