def test_detectFileType_whenMp3File_returnsMp3(self):
path = "/path/to/an.mp3"
self.assertEqual(AudioFile._detectFileType(path), "mp3")
def test_detectFileType_whenWaveFile_returnsWav(self):
path = "/path/to/an.wav"
self.assertEqual(AudioFile._detectFileType(path), "wav")
