[pitivi] tests_: Docstrings

[Alexandru Băluț <alexbalut src gnome org>]

commit c34b62ae2ed1b36e4ff9cac53777061cfcec16ad
Author: Alexandru Băluț <alexandru balut gmail com>
Date:   Fri Dec 9 23:37:35 2016 +0100

    tests_: Docstrings
    
    Reviewed-by: Thibault Saunier <tsaunier gnome org>
    Differential Revision: https://phabricator.freedesktop.org/D1542

 pre-commit.hook                 |    1 -
 tests/test_render.py            |    6 ++++--
 tests/test_timeline_elements.py |   15 ++++++++++++---
 3 files changed, 16 insertions(+), 6 deletions(-)
---
diff --git a/pre-commit.hook b/pre-commit.hook
index f89e5aa..fbe35ff 100755
--- a/pre-commit.hook
+++ b/pre-commit.hook
@@ -61,7 +61,6 @@ tests/test_preset.py
 tests/test_previewers.py
 tests/test_project.py
 tests/test_system.py
-tests/test_timeline_elements.py
 tests/test_timeline_layer.py
 tests/test_timeline_timeline.py
 tests/test_undo.py
diff --git a/tests/test_render.py b/tests/test_render.py
index 59079ad..979c11f 100644
--- a/tests/test_render.py
+++ b/tests/test_render.py
@@ -17,6 +17,7 @@
 # Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
 # Boston, MA 02110-1301, USA.
 """Tests for the render module."""
+# pylint: disable=protected-access,no-self-use
 from unittest import mock
 
 from gi.repository import GES
@@ -49,13 +50,14 @@ class TestRender(common.TestCase):
                 self.assertIsNotNone(extension_for_muxer(muxer), preset)
 
     def test_launching_rendering(self):
-        """"Checks no exception is raised when clicking the render button."""
+        """Checks no exception is raised when clicking the render button."""
         timeline_container = common.create_timeline_container()
         app = timeline_container.app
         project = app.project_manager.current_project
 
         mainloop = common.create_main_loop()
-        def asset_added_cb(project, asset):
+
+        def asset_added_cb(project, asset):  # pylint: disable=missing-docstring
             mainloop.quit()
 
         project.connect("asset-added", asset_added_cb)
diff --git a/tests/test_timeline_elements.py b/tests/test_timeline_elements.py
index 12ac34c..4478c7b 100644
--- a/tests/test_timeline_elements.py
+++ b/tests/test_timeline_elements.py
@@ -16,6 +16,8 @@
 # License along with this program; if not, write to the
 # Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
 # Boston, MA 02110-1301, USA.
+"""Tests for the timeline.elements module."""
+# pylint: disable=protected-access,no-self-use
 from unittest import mock
 from unittest import TestCase
 
@@ -29,8 +31,10 @@ from tests.test_timeline_timeline import BaseTestTimeline
 
 
 class TestKeyframeCurve(BaseTestTimeline):
+    """Tests for the KeyframeCurve class."""
 
     def test_keyframe_toggle(self):
+        """Checks keyframes toggling at the playhead position."""
         timeline_container = create_timeline_container()
         timeline = timeline_container.timeline
         pipeline = timeline._project.pipeline
@@ -90,15 +94,17 @@ class TestKeyframeCurve(BaseTestTimeline):
                 self.assertEqual(values, [0, ges_clip.props.duration])
 
     def test_no_clip_selected(self):
-        # When no clip is selected, pressing key should yield no action.
-        # Make sure this does not raise any exception
+        """Checks nothing happens when no clip is selected."""
         timeline_container = create_timeline_container()
+        # Make sure this does not raise any exception
         timeline_container._keyframe_cb(None, None)
 
 
-class TestVideoSourceScaling(BaseTestTimeline):
+class TestVideoSource(BaseTestTimeline):
+    """Tests for the VideoSource class."""
 
     def test_video_source_scaling(self):
+        """Checks the size of the scaled clips."""
         timeline_container = create_timeline_container()
         timeline = timeline_container.timeline
         project = timeline.app.project_manager.current_project
@@ -154,6 +160,7 @@ class TestVideoSourceScaling(BaseTestTimeline):
                          expected_default_position)
 
     def test_rotation(self):
+        """Checks the size of the clips flipped 90 degrees."""
         timeline_container = create_timeline_container()
         timeline = timeline_container.timeline
 
@@ -199,8 +206,10 @@ class TestVideoSourceScaling(BaseTestTimeline):
 
 
 class TestClip(TestCase):
+    """Tests for the Clip class."""
 
     def test_clip_subclasses(self):
+        """Checks the constructors of the Clip class."""
         for gtype, widget_class in GES_TYPE_UI_TYPE.items():
             ges_object = GObject.new(gtype)
             widget = widget_class(mock.Mock(), ges_object)