[gnome-photos/gnome-3-28] tests: update for renamed application ID

[Debarshi Ray <debarshir src gnome org>]

commit 1eefb7a3e8209d97c6fab2326238ce0429513348
Author: Sébastien Bacher <seb128 ubuntu com>
Date:   Sat Apr 28 08:56:32 2018 -0400

    tests: update for renamed application ID
    
    Closes: https://gitlab.gnome.org/GNOME/gnome-photos/issues/100

 tests/testutil.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/tests/testutil.py b/tests/testutil.py
index 5f32c0a8..fc925ed7 100644
--- a/tests/testutil.py
+++ b/tests/testutil.py
@@ -54,8 +54,8 @@ def start():
     else:
         _do_bus_call("Activate", GLib.Variant('(a{sv})', ([],)))
 
-    app = tree.root.application('gnome-photos')
-    focus.application('gnome-photos')
+    app = tree.root.application('org.gnome.Photos')
+    focus.application('org.gnome.Photos')
 
     return app