Test the accessibility bus for dbus-broker
The CI only has a test for openSUSE Tumbleweed, which assumes dbus-daemon. We need a test preferably for Fedora, which assumes dbus-broker.
One tricky bit is that we need to bootstrap a session bus, but there is no equivalent to dbus-run-session
for dbus-broker. This is why at-spi-bus-launcher.c
has some magic to launch the accessibility bus with an open socket, in the case where dbus-broker is being used.
Do we need the same kind of trick to launch the basic session bus for the tests?