def test_rms(self):
audio = audiodata.io.open(sample_1)
cidx = audio.extract_channel(0)
channel = audio.get_channel(cidx)
chanvol = ChannelVolume(channel)
audiovol = AudioVolume(audio)
self.assertEqual(chanvol.volume(), channel.rms())
self.assertEqual(audiovol.volume(), audio.rms())
self.assertEqual(chanvol.len(), int(channel.get_duration()/0.01) + 1)
self.assertEqual(chanvol.min(), audiovol.min())
self.assertEqual(chanvol.max(), audiovol.max())
self.assertEqual(int(chanvol.mean()), int(audiovol.mean()))
self.assertEqual(int(chanvol.variance()), int(audiovol.variance()))
self.assertEqual(int(chanvol.stdev()), int(audiovol.stdev()))
