With the current code-base, it would be a bit cumbersome to test, as you would probably have to check that an actual hook as not been called. Mocking injection seems difficult without a little refactoring.

So I guess merging it will just be fine in this case, thanks for your contribution !

Awesome! That's going to really help me.
So, when will this be in a pypi release?

Anew release was just pushed to pypi.
Usually you shouldn't have to wait for a release though, as you should always be able to install from the git repository, specifying a tag, commit or branch.