We need our `make install` to override the ostree RPM, so do it all in one txn.
This sort of thing is where a more rigorous model like rdgo/gcontinuous use
becomes better, but we'll hack it with shell for now.
Closes: #824
Approved by: jlebon
This was part of the philosophy behind https://wiki.gnome.org/Initiatives/GnomeGoals/InstalledTests -
libraries like libostree don't need to replicate everything in unit tests, we
can use the tests from our dependencies directly too.
We'll also get API break coverage testing too.
Closes: #818
Approved by: jlebon