diff --git a/test_gnomecast.py b/test_gnomecast.py
index 09a6183..ebf0162 100644
--- a/test_gnomecast.py
+++ b/test_gnomecast.py
@@ -10,6 +10,8 @@ class FakeDevice:
   def __init__(self, **kwargs):
     self.__dict__.update(kwargs)
 
+def error_callback_test(msg):
+  print(msg)
 
 
 class TestGnomecast(unittest.TestCase):
@@ -59,9 +61,9 @@ def test_1(self):
     self.assertEqual(len(fmd.subtitles), 0)
 
     cast = FakeCast(cast_type='video', manufacturer='Unknown manufacturer', model_name='Chromecast')
-    transcoder = gnomecast.Transcoder(cast, fmd, fmd.video_streams[0], fmd.audio_streams[0], None, fake=True)
+    transcoder = gnomecast.Transcoder(cast, fmd, fmd.video_streams[0], fmd.audio_streams[0], None, error_callback_test, fake=True)
 
-    self.assertEqual(transcoder.transcode_cmd[:-1], ['ffmpeg', '-i', 'pCU2GE07KW4.mkv', '-map', '0:0', '-map', '0:1', '-c:v', 'copy', '-c:a', 'mp3', '-b:a', '256k'])
+    self.assertCountEqual(transcoder.transcode_cmd[:-1], ['ffmpeg', '-i', 'pCU2GE07KW4.mkv', '-map', '0:0', '-map', '0:1', '-c:v', 'copy', '-c:a', 'mp3', '-b:a', '256k'])
 
   def test_2(self):
     fmd = gnomecast.FileMetadata(
@@ -216,23 +218,23 @@ def test_2(self):
 
     cast = FakeCast(cast_type='video', manufacturer='Unknown manufacturer', model_name='Chromecast Ultra')
 
-    transcoder = gnomecast.Transcoder(cast, fmd, fmd.video_streams[0], fmd.audio_streams[0], None, fake=True)
-    self.assertEqual(transcoder.transcode_cmd[:-1], ['ffmpeg', '-i', 'Godzilla - King of the Monsters (2019) (2160p BluRay x265 10bit HDR Tigole).mkv', '-map', '0:0', '-map', '0:1', '-c:v', 'copy', '-c:a', 'ac3', '-b:a', '256k'])
+    transcoder = gnomecast.Transcoder(cast, fmd, fmd.video_streams[0], fmd.audio_streams[0], None, error_callback_test, fake=True)
+    self.assertCountEqual(transcoder.transcode_cmd[:-1], ['ffmpeg', '-i', 'Godzilla - King of the Monsters (2019) (2160p BluRay x265 10bit HDR Tigole).mkv', '-map', '0:0', '-map', '0:1', '-c:v', 'copy', '-c:a', 'ac3', '-b:a', '256k'])
 
-    transcoder = gnomecast.Transcoder(cast, fmd, fmd.video_streams[0], fmd.audio_streams[1], None, fake=True)
-    self.assertEqual(transcoder.transcode_cmd[:-1], ['ffmpeg', '-i', 'Godzilla - King of the Monsters (2019) (2160p BluRay x265 10bit HDR Tigole).mkv', '-map', '0:0', '-map', '0:2', '-c:v', 'copy', '-c:a', 'mp3', '-b:a', '256k'])
+    transcoder = gnomecast.Transcoder(cast, fmd, fmd.video_streams[0], fmd.audio_streams[1], None, error_callback_test, fake=True)
+    self.assertCountEqual(transcoder.transcode_cmd[:-1], ['ffmpeg', '-i', 'Godzilla - King of the Monsters (2019) (2160p BluRay x265 10bit HDR Tigole).mkv', '-map', '0:0', '-map', '0:2', '-c:v', 'copy', '-c:a', 'mp3', '-b:a', '256k'])
 
     cast = FakeCast(cast_type='video', manufacturer='Unknown manufacturer', model_name='Chromecast')
-    transcoder = gnomecast.Transcoder(cast, fmd, fmd.video_streams[0], fmd.audio_streams[0], None, fake=True)
-    self.assertEqual(transcoder.transcode_cmd[:-1], ['ffmpeg', '-i', 'Godzilla - King of the Monsters (2019) (2160p BluRay x265 10bit HDR Tigole).mkv', '-map', '0:0', '-map', '0:1', '-c:v', 'h264', '-c:a', 'mp3', '-b:a', '256k'])
+    transcoder = gnomecast.Transcoder(cast, fmd, fmd.video_streams[0], fmd.audio_streams[0], None, error_callback_test, fake=True)
+    self.assertCountEqual(transcoder.transcode_cmd[:-1], ['ffmpeg', '-i', 'Godzilla - King of the Monsters (2019) (2160p BluRay x265 10bit HDR Tigole).mkv', '-map', '0:0', '-map', '0:1', '-c:v', 'h264', '-c:a', 'mp3', '-b:a', '256k'])
 
     cast = FakeCast(cast_type='video', manufacturer='VIZIO', model_name='P75-F1')
-    transcoder = gnomecast.Transcoder(cast, fmd, fmd.video_streams[0], fmd.audio_streams[0], None, fake=True)
-    self.assertEqual(transcoder.transcode_cmd[:-1], ['ffmpeg', '-i', 'Godzilla - King of the Monsters (2019) (2160p BluRay x265 10bit HDR Tigole).mkv', '-map', '0:0', '-map', '0:1', '-c:v', 'copy', '-c:a', 'ac3', '-b:a', '256k'])
+    transcoder = gnomecast.Transcoder(cast, fmd, fmd.video_streams[0], fmd.audio_streams[0], None, error_callback_test, fake=True)
+    self.assertCountEqual(transcoder.transcode_cmd[:-1], ['ffmpeg', '-i', 'Godzilla - King of the Monsters (2019) (2160p BluRay x265 10bit HDR Tigole).mkv', '-map', '0:0', '-map', '0:1', '-c:v', 'copy', '-c:a', 'ac3', '-b:a', '256k'])
 
     cast = FakeCast(cast_type='video', manufacturer='UNK', model_name='UNK')
-    transcoder = gnomecast.Transcoder(cast, fmd, fmd.video_streams[0], fmd.audio_streams[0], None, fake=True)
-    self.assertEqual(transcoder.transcode_cmd[:-1], ['ffmpeg', '-i', 'Godzilla - King of the Monsters (2019) (2160p BluRay x265 10bit HDR Tigole).mkv', '-map', '0:0', '-map', '0:1', '-c:v', 'copy', '-c:a', 'ac3', '-b:a', '256k'])
+    transcoder = gnomecast.Transcoder(cast, fmd, fmd.video_streams[0], fmd.audio_streams[0], None, error_callback_test, fake=True)
+    self.assertCountEqual(transcoder.transcode_cmd[:-1], ['ffmpeg', '-i', 'Godzilla - King of the Monsters (2019) (2160p BluRay x265 10bit HDR Tigole).mkv', '-map', '0:0', '-map', '0:1', '-c:v', 'copy', '-c:a', 'ac3', '-b:a', '256k'])
 
 
 if __name__ == '__main__':