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#-----------------------------------------------------------------------------
# Name: miditest.py
# Purpose: Unit testing harness for midiutil
#
# Author: Mark Conway Wirt <emergentmusics) at (gmail . com>
#
# Created: 2008/04/17
# Copyright: (c) 2009, Mark Conway Wirt
# License: Please see License.txt for the terms under which this
# software is distributed.
#-----------------------------------------------------------------------------
# Next few lines are necessary owing to limitations of the IDE and the
# directory structure of the project.
import sys, struct
sys.path.append('..')
PYTHON3 = True if sys.version_info[0] == 3 else False
import unittest
from pyknon.MidiFile import MIDIFile, MIDIHeader, MIDITrack, writeVarLength, \
frequencyTransform, returnFrequency
import sys
def get_byte(midi, track, data):
if PYTHON3:
return struct.unpack('>B', bytes([midi.tracks[track].MIDIdata[data]]))[0]
else:
return struct.unpack('>B', midi.tracks[track].MIDIdata[data])[0]
class TestMIDIUtils(unittest.TestCase):
def testWriteVarLength(self):
self.assertEqual(writeVarLength(0x70), [0x70])
self.assertEqual(writeVarLength(0x80), [0x81, 0x00])
self.assertEqual(writeVarLength(0x1FFFFF), [0xFF, 0xFF, 0x7F])
self.assertEqual(writeVarLength(0x08000000), [0xC0, 0x80, 0x80, 0x00])
def testAddNote(self):
MyMIDI = MIDIFile(1)
MyMIDI.addNote(0, 0, 100,0,1,100)
self.assertEqual(MyMIDI.tracks[0].eventList[0].type, "note")
self.assertEqual(MyMIDI.tracks[0].eventList[0].pitch, 100)
self.assertEqual(MyMIDI.tracks[0].eventList[0].time, 0)
self.assertEqual(MyMIDI.tracks[0].eventList[0].duration, 1)
self.assertEqual(MyMIDI.tracks[0].eventList[0].volume, 100)
def testDeinterleaveNotes(self):
MyMIDI = MIDIFile(1)
MyMIDI.addNote(0, 0, 100, 0, 2, 100)
MyMIDI.addNote(0, 0, 100, 1, 2, 100)
MyMIDI.close()
self.assertEqual(MyMIDI.tracks[0].MIDIEventList[0].type, 'NoteOn')
self.assertEqual(MyMIDI.tracks[0].MIDIEventList[0].time, 0)
self.assertEqual(MyMIDI.tracks[0].MIDIEventList[1].type, 'NoteOff')
self.assertEqual(MyMIDI.tracks[0].MIDIEventList[1].time, 128)
self.assertEqual(MyMIDI.tracks[0].MIDIEventList[2].type, 'NoteOn')
self.assertEqual(MyMIDI.tracks[0].MIDIEventList[2].time, 0)
self.assertEqual(MyMIDI.tracks[0].MIDIEventList[3].type, 'NoteOff')
self.assertEqual(MyMIDI.tracks[0].MIDIEventList[3].time, 256)
def testTimeShift(self):
# With one track
MyMIDI = MIDIFile(1)
MyMIDI.addNote(0, 0, 100, 5, 1, 100)
MyMIDI.close()
self.assertEqual(MyMIDI.tracks[0].MIDIEventList[0].type, 'NoteOn')
self.assertEqual(MyMIDI.tracks[0].MIDIEventList[0].time, 0)
self.assertEqual(MyMIDI.tracks[0].MIDIEventList[1].type, 'NoteOff')
self.assertEqual(MyMIDI.tracks[0].MIDIEventList[1].time, 128)
# With two tracks
MyMIDI = MIDIFile(2)
MyMIDI.addNote(0, 0, 100, 5, 1, 100)
MyMIDI.addNote(1, 0, 100, 6, 1, 100)
MyMIDI.close()
self.assertEqual(MyMIDI.tracks[0].MIDIEventList[0].type, 'NoteOn')
self.assertEqual(MyMIDI.tracks[0].MIDIEventList[0].time, 0)
self.assertEqual(MyMIDI.tracks[0].MIDIEventList[1].type, 'NoteOff')
self.assertEqual(MyMIDI.tracks[0].MIDIEventList[1].time, 128)
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[0].type, 'NoteOn')
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[0].time, 128)
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[1].type, 'NoteOff')
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[1].time, 128)
# Negative Time
MyMIDI = MIDIFile(1)
MyMIDI.addNote(0, 0, 100, -5, 1, 100)
MyMIDI.close()
self.assertEqual(MyMIDI.tracks[0].MIDIEventList[0].type, 'NoteOn')
self.assertEqual(MyMIDI.tracks[0].MIDIEventList[0].time, 0)
self.assertEqual(MyMIDI.tracks[0].MIDIEventList[1].type, 'NoteOff')
self.assertEqual(MyMIDI.tracks[0].MIDIEventList[1].time, 128)
# Negative time, two tracks
MyMIDI = MIDIFile(2)
MyMIDI.addNote(0, 0, 100, -1, 1, 100)
MyMIDI.addNote(1, 0, 100, 0, 1, 100)
MyMIDI.close()
self.assertEqual(MyMIDI.tracks[0].MIDIEventList[0].type, 'NoteOn')
self.assertEqual(MyMIDI.tracks[0].MIDIEventList[0].time, 0)
self.assertEqual(MyMIDI.tracks[0].MIDIEventList[1].type, 'NoteOff')
self.assertEqual(MyMIDI.tracks[0].MIDIEventList[1].time, 128)
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[0].type, 'NoteOn')
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[0].time, 128)
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[1].type, 'NoteOff')
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[1].time, 128)
def testFrequency(self):
freq = frequencyTransform(8.1758)
self.assertEqual(freq[0], 0x00)
self.assertEqual(freq[1], 0x00)
self.assertEqual(freq[2], 0x00)
freq = frequencyTransform(8.66196) # 8.6620 in MIDI documentation
self.assertEqual(freq[0], 0x01)
self.assertEqual(freq[1], 0x00)
self.assertEqual(freq[2], 0x00)
freq = frequencyTransform(440.00)
self.assertEqual(freq[0], 0x45)
self.assertEqual(freq[1], 0x00)
self.assertEqual(freq[2], 0x00)
freq = frequencyTransform(440.0016)
self.assertEqual(freq[0], 0x45)
self.assertEqual(freq[1], 0x00)
self.assertEqual(freq[2], 0x01)
freq = frequencyTransform(439.9984)
self.assertEqual(freq[0], 0x44)
self.assertEqual(freq[1], 0x7f)
self.assertEqual(freq[2], 0x7f)
freq = frequencyTransform(8372.0190)
self.assertEqual(freq[0], 0x78)
self.assertEqual(freq[1], 0x00)
self.assertEqual(freq[2], 0x00)
freq = frequencyTransform(8372.062) #8372.0630 in MIDI documentation
self.assertEqual(freq[0], 0x78)
self.assertEqual(freq[1], 0x00)
self.assertEqual(freq[2], 0x01)
freq = frequencyTransform(13289.7300)
self.assertEqual(freq[0], 0x7F)
self.assertEqual(freq[1], 0x7F)
self.assertEqual(freq[2], 0x7E)
freq = frequencyTransform(12543.8760)
self.assertEqual(freq[0], 0x7F)
self.assertEqual(freq[1], 0x00)
self.assertEqual(freq[2], 0x00)
freq = frequencyTransform(8.2104) # Just plain wrong in documentation, as far as I can tell.
#self.assertEqual(freq[0], 0x0)
#self.assertEqual(freq[1], 0x0)
#self.assertEqual(freq[2], 0x1)
# Test the inverse
testFreq = 15.0
accuracy = 0.00001
x = returnFrequency(frequencyTransform(testFreq))
delta = abs(testFreq - x)
self.assertEqual(delta < (accuracy*testFreq), True)
testFreq = 200.0
x = returnFrequency(frequencyTransform(testFreq))
delta = abs(testFreq - x)
self.assertEqual(delta < (accuracy*testFreq), True)
testFreq = 400.0
x = returnFrequency(frequencyTransform(testFreq))
delta = abs(testFreq - x)
self.assertEqual(delta < (accuracy*testFreq), True)
testFreq = 440.0
x = returnFrequency(frequencyTransform(testFreq))
delta = abs(testFreq - x)
self.assertEqual(delta < (accuracy*testFreq), True)
testFreq = 1200.0
x = returnFrequency(frequencyTransform(testFreq))
delta = abs(testFreq - x)
self.assertEqual(delta < (accuracy*testFreq), True)
testFreq = 5000.0
x = returnFrequency(frequencyTransform(testFreq))
delta = abs(testFreq - x)
self.assertEqual(delta < (accuracy*testFreq), True)
testFreq = 12000.0
x = returnFrequency(frequencyTransform(testFreq))
delta = abs(testFreq - x)
self.assertEqual(delta < (accuracy*testFreq), True)
def testSysEx(self):
MyMIDI = MIDIFile(1)
MyMIDI.addSysEx(0,0, 0, struct.pack('>B', 0x01))
MyMIDI.close()
self.assertEqual(MyMIDI.tracks[0].MIDIEventList[0].type, 'SysEx')
self.assertEqual(get_byte(MyMIDI, 0, 0), 0x00)
self.assertEqual(get_byte(MyMIDI, 0, 1), 0xf0)
self.assertEqual(get_byte(MyMIDI, 0, 2), 3)
self.assertEqual(get_byte(MyMIDI, 0, 3), 0x00)
self.assertEqual(get_byte(MyMIDI, 0, 4), 0x01)
self.assertEqual(get_byte(MyMIDI, 0, 5), 0xf7)
def testUniversalSysEx(self):
MyMIDI = MIDIFile(1)
MyMIDI.addUniversalSysEx(0,0, 1, 2, struct.pack('>B', 0x01))
MyMIDI.close()
self.assertEqual(MyMIDI.tracks[0].MIDIEventList[0].type, 'UniversalSysEx')
self.assertEqual(get_byte(MyMIDI, 0, 0), 0x00)
self.assertEqual(get_byte(MyMIDI, 0, 1), 0xf0)
self.assertEqual(get_byte(MyMIDI, 0, 2), 6)
self.assertEqual(get_byte(MyMIDI, 0, 3), 0x7E)
self.assertEqual(get_byte(MyMIDI, 0, 4), 0x7F)
self.assertEqual(get_byte(MyMIDI, 0, 5), 0x01)
self.assertEqual(get_byte(MyMIDI, 0, 6), 0x02)
self.assertEqual(get_byte(MyMIDI, 0, 7), 0x01)
self.assertEqual(get_byte(MyMIDI, 0, 8), 0xf7)
def testTuning(self):
MyMIDI = MIDIFile(1)
MyMIDI.changeNoteTuning(0, [(1, 440), (2, 880)])
MyMIDI.close()
self.assertEqual(MyMIDI.tracks[0].MIDIEventList[0].type, 'UniversalSysEx')
self.assertEqual(get_byte(MyMIDI, 0, 0), 0x00)
self.assertEqual(get_byte(MyMIDI, 0, 1), 0xf0)
self.assertEqual(get_byte(MyMIDI, 0, 2), 15)
self.assertEqual(get_byte(MyMIDI, 0, 3), 0x7E)
self.assertEqual(get_byte(MyMIDI, 0, 4), 0x7F)
self.assertEqual(get_byte(MyMIDI, 0, 5), 0x08)
self.assertEqual(get_byte(MyMIDI, 0, 6), 0x02)
self.assertEqual(get_byte(MyMIDI, 0, 7), 0x00)
self.assertEqual(get_byte(MyMIDI, 0, 8), 0x2)
self.assertEqual(get_byte(MyMIDI, 0, 9), 0x1)
self.assertEqual(get_byte(MyMIDI, 0, 10), 69)
self.assertEqual(get_byte(MyMIDI, 0, 11), 0)
self.assertEqual(get_byte(MyMIDI, 0, 12), 0)
self.assertEqual(get_byte(MyMIDI, 0, 13), 0x2)
self.assertEqual(get_byte(MyMIDI, 0, 14), 81)
self.assertEqual(get_byte(MyMIDI, 0, 15), 0)
self.assertEqual(get_byte(MyMIDI, 0, 16), 0)
self.assertEqual(get_byte(MyMIDI, 0, 17), 0xf7)
MIDISuite = unittest.TestLoader().loadTestsFromTestCase(TestMIDIUtils)
if __name__ == '__main__':
unittest.TextTestRunner(verbosity=1).run(MIDISuite)
|
