Unlike g_test_dbus_down(), this won't verify the #GDBusConnection
singleton returned by g_bus_get() or g_bus_get_sync() is destroyed. Unit
tests wanting to verify behaviour after the session bus has been stopped
can use this function but should still call g_test_dbus_down() when done.
Stop the session bus started by g_test_dbus_up().
Unlike g_test_dbus_down(), this won't verify the #GDBusConnection singleton returned by g_bus_get() or g_bus_get_sync() is destroyed. Unit tests wanting to verify behaviour after the session bus has been stopped can use this function but should still call g_test_dbus_down() when done.