Add Video.audioStreams() convenience method (#891)

* Add Video.audioStreams() convenience method

* Add test for Video.audioStreams()

Author: JonnyWong16

plexapi/video.py

@@ -111,6 +111,15 @@ def _defaultSyncTitle(self):
         """ Returns str, default title for a new syncItem. """
         return self.title
 
+    def audioStreams(self):
+        """ Returns a list of :class:`~plexapi.media.AudioStream` objects for all MediaParts. """
+        streams = []
+
+        parts = self.iterParts()
+        for part in parts:
+            streams += part.audioStreams()
+        return streams
+
     def subtitleStreams(self):
         """ Returns a list of :class:`~plexapi.media.SubtitleStream` objects for all MediaParts. """
         streams = []

tests/test_video.py

@@ -361,11 +361,16 @@ def test_video_Movie_download(monkeydownload, tmpdir, movie):
     assert filename in with_resolution[0]
 
 
-def test_video_Movie_subtitlestreams(movie):
+def test_video_Movie_audioStreams(movie):
+    movie.reload()
+    assert movie.audioStreams()
+
+
+def test_video_Movie_subtitleStreams(movie):
     assert not movie.subtitleStreams()
 
 
-def test_video_Episode_subtitlestreams(episode):
+def test_video_Episode_subtitleStreams(episode):
     assert not episode.subtitleStreams()