def test_track_parsing_identifies_midi_events_correctly_4(self):
input = BitArray("0x00923060003C6000FF2F00")
track = process_track_chunk(input)
self.assertEqual(track["type"], TRACK)
self.assertEqual(len(track["events"]), 3)
delta_time = track["events"][0][0]
event = track["events"][0][1]
self.assertEqual(delta_time, 0)
self.assertEqual(event["type"], MIDI)
self.assertEqual(event["sub_type"], "Note On")
self.assertEqual(event["channel"], 3)
self.assertEqual(event["note"], 48)
self.assertEqual(event["velocity"], 96)
delta_time = track["events"][1][0]
event = track["events"][1][1]
self.assertEqual(delta_time, 0)
self.assertEqual(event["type"], MIDI)
self.assertEqual(event["sub_type"], "Note On")
self.assertEqual(event["channel"], 3)
self.assertEqual(event["note"], 60)
self.assertEqual(event["velocity"], 96)
def test_track_parsing_identifies_meta_events_correctly(self):
input = BitArray("0x00FF58040402180800FF2F00")
track = process_track_chunk(input)
self.assertEqual(track["type"], TRACK)
self.assertEqual(len(track["events"]), 2)
delta_time = track["events"][0][0]
event = track["events"][0][1]
self.assertEqual(delta_time, 0)
self.assertEqual(event["type"], META)
self.assertEqual(event["sub_type"], "Time Signature")
def test_track_parsing_identifies_midi_events_correctly(self):
input = BitArray("0x00C00500FF2F00")
track = process_track_chunk(input)
self.assertEqual(track["type"], TRACK)
self.assertEqual(len(track["events"]), 2)
delta_time = track["events"][0][0]
event = track["events"][0][1]
self.assertEqual(delta_time, 0)
self.assertEqual(event["type"], MIDI)
self.assertEqual(event["sub_type"], "Program Change")
self.assertEqual(event["channel"], 1)
self.assertEqual(event["new_value"], 5)
def test_track_parsing_raises_exception_if_end_of_track_event_missing(self):
input = BitArray("0x00FF580404021808")
self.assertRaises(Exception, process_track_chunk, input)
input = BitArray("0x00FF2F00")
track = process_track_chunk(input)
self.assertEqual(track["type"], TRACK)
self.assertEqual(len(track["events"]), 1)
delta_time = track["events"][0][0]
event = track["events"][0][1]
self.assertEqual(delta_time, 0)
self.assertEqual(event["type"], META)
self.assertEqual(event["sub_type"], "End of Track")