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Fix bug #1547964 by ignoring the exception (it's harmless)

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Fixes: https://launchpad.net/bugs/1547964
This commit is contained in:
Raoul Snyman 2016-08-14 10:24:17 +02:00
parent c763585250
commit c2b05e3454
2 changed files with 30 additions and 1 deletions
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11
openlp/core/ui/media/systemplayer.py
View File

@ -95,6 +95,16 @@ class SystemPlayer(MediaPlayer):
mime_type_list.append(ext)
log.info('MediaPlugin: %s extensions: %s', mime_type, ' '.join(extensions))
def disconnect_slots(self, signal):
"""
Safely disconnect the slots from `signal`
"""
try:
signal.disconnect()
except TypeError:
# If disconnect() is called on a signal without slots, it throws a TypeError
pass
def setup(self, display):
"""
Set up the player widgets
@ -160,6 +170,7 @@ class SystemPlayer(MediaPlayer):
if start_time > 0:
self.seek(display, controller.media_info.start_time * 1000)
self.volume(display, controller.media_info.volume)
self.disconnect_slots(display.media_player.durationChanged)
display.media_player.durationChanged.connect(functools.partial(self.set_duration, controller))
self.set_state(MediaState.Playing, display)
display.video_widget.raise_()

20
tests/functional/openlp_core_ui_media/test_systemplayer.py
View File

@ -107,6 +107,22 @@ class TestSystemPlayer(TestCase):
mocked_video_widget.hide.assert_called_once_with()
self.assertTrue(player.has_own_widget)
def test_disconnect_slots(self):
"""
Test that we the disconnect slots method catches the TypeError
"""
# GIVEN: A SystemPlayer class and a signal that throws a TypeError
player = SystemPlayer(self)
mocked_signal = MagicMock()
mocked_signal.disconnect.side_effect = \
TypeError('disconnect() failed between \'durationChanged\' and all its connections')
# WHEN: disconnect_slots() is called
player.disconnect_slots(mocked_signal)
# THEN: disconnect should have been called and the exception should have been ignored
mocked_signal.disconnect.assert_called_once_with()
def test_check_available(self):
"""
Test the check_available() method on SystemPlayer
@ -198,7 +214,8 @@ class TestSystemPlayer(TestCase):
with patch.object(player, 'get_live_state') as mocked_get_live_state, \
patch.object(player, 'seek') as mocked_seek, \
patch.object(player, 'volume') as mocked_volume, \
patch.object(player, 'set_state') as mocked_set_state:
patch.object(player, 'set_state') as mocked_set_state, \
patch.object(player, 'disconnect_slots') as mocked_disconnect_slots:
mocked_get_live_state.return_value = QtMultimedia.QMediaPlayer.PlayingState
result = player.play(mocked_display)
@ -207,6 +224,7 @@ class TestSystemPlayer(TestCase):
mocked_display.media_player.play.assert_called_once_with()
mocked_seek.assert_called_once_with(mocked_display, 1000)
mocked_volume.assert_called_once_with(mocked_display, 1)
mocked_disconnect_slots.assert_called_once_with(mocked_display.media_player.durationChanged)
mocked_display.media_player.durationChanged.connect.assert_called_once_with('function')
mocked_set_state.assert_called_once_with(MediaState.Playing, mocked_display)
mocked_display.video_widget.raise_.assert_called_once_with()