core: Trigger playlist_changed() event on create() and save()

mopidy/core/playlists.py

@@ -5,6 +5,8 @@ import urlparse
 
 import pykka
 
+from . import listener
+
 
 class PlaylistsController(object):
     pykka_traversable = True
@@ -47,7 +49,9 @@ class PlaylistsController(object):
             backend = self.backends.by_uri_scheme[uri_scheme]
         else:
             backend = self.backends.with_playlists[0]
-        return backend.playlists.create(name).get()
+        playlist = backend.playlists.create(name).get()
+        listener.CoreListener.send('playlist_changed', playlist=playlist)
+        return playlist
 
     def delete(self, uri):
         """
@@ -162,4 +166,6 @@ class PlaylistsController(object):
         backend = self.backends.with_playlists_by_uri_scheme.get(
             uri_scheme, None)
         if backend:
-            return backend.playlists.save(playlist).get()
+            playlist = backend.playlists.save(playlist).get()
+            listener.CoreListener.send('playlist_changed', playlist=playlist)
+            return playlist

tests/core/events_test.py

@@ -90,3 +90,26 @@ class BackendEventsTest(unittest.TestCase):
         send.reset_mock()
         self.core.tracklist.shuffle().get()
         self.assertEqual(send.call_args[0][0], 'tracklist_changed')
+
+    @unittest.SkipTest
+    def test_playlists_load_sends_playlists_loaded_event(self, send):
+        # TODO Figure out what type of event and how to send events when
+        # the backend finished loading playlists
+        pass
+
+    def test_playlists_create_sends_playlist_changed_event(self, send):
+        send.reset_mock()
+        self.core.playlists.create('foo').get()
+        self.assertEqual(send.call_args[0][0], 'playlist_changed')
+
+    @unittest.SkipTest
+    def test_playlists_delete_sends_playlist_deleted_event(self, send):
+        # TODO We should probably add a playlist_deleted event
+        pass
+
+    def test_playlists_save_sends_playlist_changed_event(self, send):
+        playlist = self.core.playlists.create('foo').get()
+        send.reset_mock()
+        playlist = playlist.copy(name='bar')
+        self.core.playlists.save(playlist).get()
+        self.assertEqual(send.call_args[0][0], 'playlist_changed')