[pitivi] tests: Do not expect 3 actions stacked when we only add a clip to a layer

[Thibault Saunier <tsaunier src gnome org>]

commit f85690b1320045e045dd96a83d445f326dd86bf0
Author: Thibault Saunier <tsaunier gnome org>
Date:   Thu Jul 2 16:45:21 2015 +0200

    tests: Do not expect 3 actions stacked when we only add a clip to a layer

 tests/test_undo_timeline.py |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/tests/test_undo_timeline.py b/tests/test_undo_timeline.py
index 4fb63e7..aa50489 100644
--- a/tests/test_undo_timeline.py
+++ b/tests/test_undo_timeline.py
@@ -135,7 +135,7 @@ class TestTimelineUndo(TestCase):
 
         self.assertEqual(1, len(stacks))
         stack = stacks[0]
-        self.assertEqual(3, len(stack.done_actions))
+        self.assertEqual(1, len(stack.done_actions))
         action = stack.done_actions[0]
         self.assertTrue(isinstance(action, ClipAdded))
         self.assertTrue(clip1 in self.getTimelineClips())