[gvfs] test: Be sure that gvfs is used by gio

[Ondrej Holy <oholy src gnome org>]

commit 2be06cd34bb660fa7f05bc27bc728e9ddce46c7d
Author: Ondrej Holy <oholy redhat com>
Date:   Tue Jun 7 13:12:36 2016 +0200

    test: Be sure that gvfs is used by gio
    
    Currently the tests may fail with:
    Error mounting location: volume doesn't implement mount
    
    This may happen if GIO_USE_VFS=local, which is currently set by
    gnome-desktop-testing as defaults.
    
    Set GIO_USE_VFS=gvfs for our process to fix it.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=734370

 test/gvfs-test |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/test/gvfs-test b/test/gvfs-test
index d180d9a..662a9dc 100755
--- a/test/gvfs-test
+++ b/test/gvfs-test
@@ -37,6 +37,8 @@ from glob import glob
 
 from gi.repository import GLib, Gio
 
+os.environ['GIO_USE_VFS'] = 'gvfs'
+
 try:
     import gi
     gi.require_version('UMockdev', '1.0')