def test_simple_beam(self):
note = Note(DiatonicPitch(4, 'c'), Duration(1, 8))
beam = Beam([note])
print(beam)
assert beam.cardinality() == 1
assert beam.get_all_notes()[0].diatonic_pitch == DiatonicPitch(4, 'c')
notes = beam.get_all_notes()
assert len(notes) == 1
TestBeam.print_all_notes(notes)
def test_multi_notes(self):
note0 = Note(DiatonicPitch(4, 'c'), Duration(1, 8))
note1 = Note(DiatonicPitch(4, 'd'), Duration(1, 8), 1)
note2 = Note(DiatonicPitch(4, 'e'), Duration(1, 16))
beam = Beam([note0, note1, note2])
print(beam)
assert beam.cardinality() == 3
notes = beam.get_all_notes()
assert notes[0].diatonic_pitch == DiatonicPitch(4, 'c')
assert notes[1].diatonic_pitch == DiatonicPitch(4, 'd')
assert notes[2].diatonic_pitch == DiatonicPitch(4, 'e')
assert beam.duration == Duration(3, 8)
assert notes[0].relative_position == Offset(0)
assert notes[1].relative_position == Offset(1, 8)
assert notes[2].relative_position == Offset(5, 16)
assert len(notes) == 3
TestBeam.print_all_notes(notes)
def test_single_voice(self):
print('test single voice')
note0 = Note(DiatonicPitch(4, 'c'), Duration(1, 8))
note1 = Note(DiatonicPitch(4, 'd'), Duration(1, 8), 1)
note2 = Note(DiatonicPitch(4, 'e'), Duration(1, 16))
beam = Beam([note0, note1, note2])
print(beam)
assert beam.cardinality() == 3
line = Line(beam)
assert line.length() == Duration(3, 8)
c = InstrumentCatalog.instance()
violin = c.get_instrument("violin")
voice = Voice(violin)
voice.pin(line, Offset(3, 4))
coverage = voice.coverage()
print('Coverage = {0}'.format(coverage))
assert coverage.lower == Position(3, 4)
assert coverage.upper == Position(9, 8)
assert voice.length() == Duration(9, 8)
interval = Interval(Position(15, 16), Position(9, 8))
notes = voice.get_notes_by_interval(interval)
print(', '.join([str(n) for n in notes]))
for n in notes:
intvl = TestVoice.compute_note_interval(n)
print('{0} intersect {1} = {2}'.format(
intvl, interval, intvl.intersection(interval)))
assert len(notes) == 2
print(notes[0].get_absolute_position(),
notes[1].get_absolute_position())
assert TestVoice.has_pitch(notes, DiatonicPitch.parse('D:4'))
assert TestVoice.has_pitch(notes, DiatonicPitch.parse('E:4'))