[pitivi] elements: Remove static tooltip setting

[Alexandru Băluț <alexbalut src gnome org>]

commit 41e22f3cc7e938fd06ae8298195a394cb86bbcb5
Author: Alexandru Băluț <alexandru balut gmail com>
Date:   Wed Nov 9 11:37:53 2016 +0100

    elements: Remove static tooltip setting
    
    The tooltip is already set in UriClip.do_query_tooltip.
    
    Reviewed-by: Thibault Saunier <tsaunier gnome org>
    Differential Revision: https://phabricator.freedesktop.org/D1456

 pitivi/timeline/elements.py     |    2 --
 tests/test_timeline_elements.py |   12 ++++++++++++
 2 files changed, 12 insertions(+), 2 deletions(-)
---
diff --git a/pitivi/timeline/elements.py b/pitivi/timeline/elements.py
index a00242b..fd7ae09 100644
--- a/pitivi/timeline/elements.py
+++ b/pitivi/timeline/elements.py
@@ -1143,8 +1143,6 @@ class UriClip(SourceClip):
         SourceClip.__init__(self, layer, ges_clip)
         self.props.has_tooltip = True
 
-        self.set_tooltip_markup(filename_from_uri(ges_clip.get_uri()))
-
     def do_query_tooltip(self, x, y, keyboard_mode, tooltip):
         tooltip.set_markup(filename_from_uri(
             self.ges_clip.get_asset().props.id))
diff --git a/tests/test_timeline_elements.py b/tests/test_timeline_elements.py
index 6b8ff48..12ac34c 100644
--- a/tests/test_timeline_elements.py
+++ b/tests/test_timeline_elements.py
@@ -17,9 +17,12 @@
 # Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
 # Boston, MA 02110-1301, USA.
 from unittest import mock
+from unittest import TestCase
 
+from gi.overrides import GObject
 from gi.repository import GES
 
+from pitivi.timeline.elements import GES_TYPE_UI_TYPE
 from tests.common import create_test_clip
 from tests.common import create_timeline_container
 from tests.test_timeline_timeline import BaseTestTimeline
@@ -193,3 +196,12 @@ class TestVideoSourceScaling(BaseTestTimeline):
         height = video_source.get_child_property("height")[1]
         self.assertEqual(width, 960)
         self.assertEqual(height, 400)
+
+
+class TestClip(TestCase):
+
+    def test_clip_subclasses(self):
+        for gtype, widget_class in GES_TYPE_UI_TYPE.items():
+            ges_object = GObject.new(gtype)
+            widget = widget_class(mock.Mock(), ges_object)
+            self.assertEqual(ges_object.ui, widget, widget_class)