def test_close_inside_iteration():
# This type of port can close when it runs out of messages.
# (And example of this is socket ports.)
#
# Iteration should then stop after all messages in the
# internal queue have been received.
message = Message('note_on')
class Port(BaseIOPort):
def __init__(self, messages):
BaseIOPort.__init__(self)
# Simulate some messages that arrived
# earlier.
self._messages.extend(messages)
self.closed = False
def _receive(self, block=True):
# Oops, the other end hung up.
if self._messages:
return self._messages.popleft()
else:
self.close()
return None
message = Message('note_on')
with Port([message, message]) as port:
assert len(list(port)) == 2
def test_encode_and_parse():
"""Encode a message and then parse it.
Should return the same message.
"""
note_on = Message('note_on')
assert note_on == parse(note_on.bytes())
def test_track_repr():
track = MidiTrack([
Message('note_on', channel=1, note=2, time=3),
Message('note_off', channel=1, note=2, time=3),
])
track_eval = eval(repr(track))
for m1, m2 in zip(track, track_eval):
assert m1 == m2
def test_handle_any_whitespace(tmpdir):
path = tmpdir.join("test.syx").strpath
with open(path, 'wt') as outfile:
outfile.write('F0 01 02 \t F7\n F0 03 04 F7\n')
assert read_syx_file(path) == [
Message('sysex', data=[1, 2]),
Message('sysex', data=[3, 4])
]
def test_write(tmpdir):
# p = tmpdir.mkdir("sub").join("hello.txt")
path = tmpdir.join("test.syx").strpath
msg = Message('sysex', data=(1, 2, 3))
write_syx_file(path, [msg])
with open(path, 'rb') as infile:
assert infile.read() == msg.bin()
write_syx_file(path, [msg], plaintext=True)
with open(path, 'rt') as infile:
assert infile.read().strip() == msg.hex()
def test_write(tmpdir):
# p = tmpdir.mkdir("sub").join("hello.txt")
path = tmpdir.join("test.syx").strpath
msg = Message('sysex', data=(1, 2, 3))
write_syx_file(path, [msg])
with open(path, 'rb') as infile:
assert infile.read() == msg.bin()
write_syx_file(path, [msg], plaintext=True)
with open(path, 'rt') as infile:
assert infile.read().strip() == msg.hex()
def test_encode_and_parse_all():
"""Encode and then parse all message types.
This checks mostly for errors in the parser.
"""
parser = Parser()
for type_ in sorted(specs.SPEC_BY_TYPE.keys()):
msg = Message(type_)
parser.feed(msg.bytes())
parser.get_message() == msg
assert parser.get_message() is None
def test_midifile_repr():
midifile = MidiFile(type=1, ticks_per_beat=123, tracks=[
MidiTrack([
Message('note_on', channel=1, note=2, time=3),
Message('note_off', channel=1, note=2, time=3)]),
MidiTrack([
MetaMessage('sequence_number', number=5),
Message('note_on', channel=2, note=6, time=9),
Message('note_off', channel=2, note=6, time=9)]),
])
midifile_eval = eval(repr(midifile))
for track, track_eval in zip(midifile.tracks, midifile_eval.tracks):
for m1, m2 in zip(track, track_eval):
assert m1 == m2
def play(self, notes, velocity=64, lapse=0, duration=0):
""" Play an array of notes. Support sharp and bemol notation
Parameters:
notes (List): ['C', 'A', ...]
velocity (int): Volume (see `mido` specification)
lapse (int): Sequential: Time between each note in array to create sequential sound
duration (int): Chords: Time at the end of sounding all notes in the array to create chord like sound
Returns:
Sound (Midi Output)
Example:
```python
p = PlayNotes()
p.play(p.create_mode('lidio', 'A', 3), lapse=0.5)
```
"""
for note in notes:
midinote = self.mapping_bemol[
note] if 'b' in note else self.mapping_sharp[note]
print(note, midinote)
self.port.send(
Message('note_on', note=midinote, time=lapse, velocity=64))
if lapse:
time.sleep(lapse)
time.sleep(duration)
def test_read(tmpdir):
path = tmpdir.join("test.syx").strpath
msg = Message('sysex', data=(1, 2, 3))
with open(path, 'wb') as outfile:
outfile.write(msg.bin())
assert read_syx_file(path) == [msg]
with open(path, 'wt') as outfile:
outfile.write(msg.hex())
assert read_syx_file(path) == [msg]
with open(path, 'wt') as outfile:
outfile.write('NOT HEX')
with raises(ValueError):
read_syx_file(path)
def test_read(tmpdir):
path = tmpdir.join("test.syx").strpath
msg = Message('sysex', data=(1, 2, 3))
with open(path, 'wb') as outfile:
outfile.write(msg.bin())
assert read_syx_file(path) == [msg]
with open(path, 'wt') as outfile:
outfile.write(msg.hex())
assert read_syx_file(path) == [msg]
with open(path, 'wt') as outfile:
outfile.write('NOT HEX')
with raises(ValueError):
read_syx_file(path)
def new_callback_wrapper(self, msg_data, data):
from mido.messages import Message
# I copied this from the body of the old callback in the `mido` source,
# rather than calling it, because I needed access to the `msg`
# variable, and in the case where `self._callback` is defined, I may not
# be able to rely on `msg` being at the end of `self._queue`.
try:
msg = Message.from_bytes(msg_data[0])
except ValueError:
# Ignore invalid message.
return
# (Actually storing the DELTA time here, because otherwise I'd just need
# to conver to this anyway, and that's all I'd use `msg.time` for.)
msg.time = msg_data[1]
# (also copied from `mido` source)
(self._callback or self._queue.put)(msg)
def test_freeze_and_thaw():
"""Test that messages are hashable."""
assert not is_frozen(thaw_message(freeze_message(Message('note_on'))))
def test_recv_non_blocking(self, port):
message = Message('note_on')
port.send(message)
port.poll()
assert port.poll() is None
track.append(Message('note_on', note=value_code, velocity=80, time=32))
track.append(Message('note_on', note=value_code, velocity=0, time=32))
"""
if __name__ == '__main__':
out_path = "midi_files/Test1.mid"
mid = MidiFile()
track = MidiTrack()
mid.tracks.append(track)
# Tempo
track.append(MetaMessage('set_tempo', tempo=800000, time=0))
# Start A
track.append(Message('note_on', note=23, velocity=80, time=0))
# End A
track.append(Message('note_on', note=23, velocity=0, time=560))
# Start B
track.append(Message('note_on', note=56, velocity=80, time=40))
# End B
track.append(Message('note_on', note=56, velocity=0, time=100))
# Tempo
track.append(MetaMessage('set_tempo', tempo=500000, time=0))
# Start C
track.append(Message('note_on', note=96, velocity=80, time=320))
# End C
track.append(Message('note_on', note=96, velocity=0, time=400))
def test_parse():
"""Parse a note_on msg and compare it to one created with Message()."""
parsed = parse(b'\x90\x4c\x20')
other = Message('note_on', channel=0, note=0x4c, velocity=0x20)
assert parsed == other
def test_send_message(self, port):
message = Message('note_on')
port.send(message)
port.send(message)
def message(self):
return Message('note_on', channel=self.channel.value)
def test_decode_invalid_sysex_with_spaces():
with raises(ValueError):
Message.from_str('sysex data=(1, 2, 3)')
def test_decode_sysex():
assert Message.from_str('sysex data=(1,2,3)').data == (1, 2, 3)
def message(self, value):
return Message('control_change', channel=self.channel, control=self.control.value, value=value)
def test_thawed_message_is_copy():
frozen_msg = FrozenMessage('note_on')
thawed_msg = Message('note_on')
assert thaw_message(frozen_msg) == thawed_msg
def test_is_frozen():
assert is_frozen(FrozenMessage('note_on'))
assert not is_frozen(Message('note_on'))
def test_encode_sysex():
assert str(Message('sysex', data=())) == 'sysex data=() time=0'
# This should not have an extra comma.
assert str(Message('sysex', data=(1,))) == 'sysex data=(1) time=0'
assert str(Message('sysex', data=(1, 2, 3))) == 'sysex data=(1,2,3) time=0'
def test_single_message():
assert read_file(HEADER_ONE_TRACK + """
4d 54 72 6b # MTrk
00 00 00 04
20 90 40 40 # note_on
""").tracks[0] == [Message('note_on', note=64, velocity=64, time=32)]
def test_encode_long_int():
# Make sure Python 2 doesn't stick an 'L' at the end of a long
# integer.
assert 'L' not in str(Message('clock', time=1231421984983298432948))
