old_contents: from __future__ import absolute_import, unicode_literals
  
  import unittest
  
  import mock
  
  from mopidy.core import CoreListener, PlaybackState
  from mopidy.models import Playlist, TlTrack
  
  
  class CoreListenerTest(unittest.TestCase):
      def setUp(self):  # noqa: N802
          self.listener = CoreListener()
  
      def test_on_event_forwards_to_specific_handler(self):
          self.listener.track_playback_paused = mock.Mock()
  
          self.listener.on_event(
              'track_playback_paused', track=TlTrack(), position=0)
  
          self.listener.track_playback_paused.assert_called_with(
              track=TlTrack(), position=0)
  
      def test_listener_has_default_impl_for_track_playback_paused(self):
          self.listener.track_playback_paused(TlTrack(), 0)
  
      def test_listener_has_default_impl_for_track_playback_resumed(self):
          self.listener.track_playback_resumed(TlTrack(), 0)
  
      def test_listener_has_default_impl_for_track_playback_started(self):
          self.listener.track_playback_started(TlTrack())
  
      def test_listener_has_default_impl_for_track_playback_ended(self):
          self.listener.track_playback_ended(TlTrack(), 0)
  
      def test_listener_has_default_impl_for_playback_state_changed(self):
          self.listener.playback_state_changed(
              PlaybackState.STOPPED, PlaybackState.PLAYING)
  
      def test_listener_has_default_impl_for_tracklist_changed(self):
          self.listener.tracklist_changed()
  
      def test_listener_has_default_impl_for_playlists_loaded(self):
          self.listener.playlists_loaded()
  
      def test_listener_has_default_impl_for_playlist_changed(self):
          self.listener.playlist_changed(Playlist())
  
      def test_listener_has_default_impl_for_options_changed(self):
          self.listener.options_changed()
  
      def test_listener_has_default_impl_for_volume_changed(self):
          self.listener.volume_changed(70)
  
      def test_listener_has_default_impl_for_mute_changed(self):
          self.listener.mute_changed(True)
  
      def test_listener_has_default_impl_for_seeked(self):
          self.listener.seeked(0)
  
      def test_listener_has_default_impl_for_current_metadata_changed(self):
          self.listener.current_metadata_changed()
  
new_contents: from __future__ import absolute_import, unicode_literals
  
  import unittest
  
  import mock
  
  from mopidy.core import CoreListener, PlaybackState
  from mopidy.models import Playlist, TlTrack
  
  
  class CoreListenerTest(unittest.TestCase):
      def setUp(self):  # noqa: N802
          self.listener = CoreListener()
  
      def test_on_event_forwards_to_specific_handler(self):
          self.listener.track_playback_paused = mock.Mock()
  
          self.listener.on_event(
              'track_playback_paused', track=TlTrack(), position=0)
  
          self.listener.track_playback_paused.assert_called_with(
              track=TlTrack(), position=0)
  
      def test_listener_has_default_impl_for_track_playback_paused(self):
          self.listener.track_playback_paused(TlTrack(), 0)
  
      def test_listener_has_default_impl_for_track_playback_resumed(self):
          self.listener.track_playback_resumed(TlTrack(), 0)
  
      def test_listener_has_default_impl_for_track_playback_started(self):
          self.listener.track_playback_started(TlTrack())
  
      def test_listener_has_default_impl_for_track_playback_ended(self):
          self.listener.track_playback_ended(TlTrack(), 0)
  
      def test_listener_has_default_impl_for_playback_state_changed(self):
          self.listener.playback_state_changed(
              PlaybackState.STOPPED, PlaybackState.PLAYING)
  
      def test_listener_has_default_impl_for_tracklist_changed(self):
          self.listener.tracklist_changed()
  
      def test_listener_has_default_impl_for_playlists_loaded(self):
          self.listener.playlists_loaded()
  
      def test_listener_has_default_impl_for_playlist_changed(self):
          self.listener.playlist_changed(Playlist())
  
      def test_listener_has_default_impl_for_options_changed(self):
          self.listener.options_changed()
  
      def test_listener_has_default_impl_for_volume_changed(self):
          self.listener.volume_changed(70)
  
      def test_listener_has_default_impl_for_mute_changed(self):
          self.listener.mute_changed(True)
  
      def test_listener_has_default_impl_for_seeked(self):
          self.listener.seeked(0)
  
      def test_listener_has_default_impl_for_stream_title_changed(self):
          self.listener.stream_title_changed('foobar')
  
subject: Test stream_title_changed listener