def testSub(self):
tmp = self.p2
tmp -= Interval(-6, 'minor')
self.assertTrue(tmp.eqNames(Pitch('f')))
self.assertTrue((tmp - Interval(-2, 'minor')).eqNames(Pitch('g', -2)))
self.assertTrue((tmp - Interval(-5, 'aug')).eqNames(Pitch('c', 2, 2)))
self.assertTrue((tmp - Interval(10)).eqNames(Pitch('d', -2, 0)))
self.assertTrue((tmp - Interval(2)).eqNames(Pitch('e', -2)))
def testAdd(self):
tmp = self.s2
tmp += Interval(3)
self.assertTrue(tmp.eqNames(Sound('c', 2)))
self.assertTrue((tmp + Interval(2, 'minor')).eqNames(Sound('d')))
self.assertTrue((tmp + Interval(4)).eqNames(Sound('f', 2)))
self.assertTrue((tmp + Interval(-5, 'aug')).eqNames(Sound('f', 0)))
self.assertTrue((tmp + Interval(-2)).eqNames(Sound('b', 0)))
def setUp(self):
self.n1 = Note(4, 0, Pitch('a', 0, 1, 'lower'))
self.n2 = Note(8, 1, Pitch('c', 2, 2), Pitch('e'), Pitch())
self.n3 = Note.fromRhythmValAndPitches(RhythmicValue(8, 0), Pitch('d'))
self.n4 = Note(4, 0, Pitch())
self.n5 = Note(8, 1, Pitch())
self.n5.pitches.append(Pitch('c', 2, 2))
self.n5.pitches.append(Pitch('e'))
self.n6 = Note.fromRhythmValAndStruct(RhythmicValue(), Pitch(),
PitchesStructure(Interval(3),
Interval(2), Interval(4)))
self.n7 = Note(8, 2)
def setUp(self):
self.ps1 = PitchesStructure()
self.ps1.intervals.append(Interval(3))
self.ps1.intervals.append(Interval(3, 'minor'))
self.ps2 = PitchesStructure()
self.ps2.intervals.append(Interval(3))
self.ps2.intervals.append(Interval(3, 'minor'))
self.ps2.intervals.append(Interval(3, 'minor'))
self.ps3 = PitchesStructure()
self.ps3.intervals.append(Interval(4))
self.ps3.intervals.append(Interval(4))
self.ps4 = PitchesStructure(Interval(3), Interval(3, 'minor'))
def setUp(self):
self.i1 = Interval(3)
self.i2 = Interval(5, 'perfect')
self.i3 = Interval(7)
self.i4 = Interval(7, 'minor')
self.i5 = Interval(-4, 'aug', 1)
self.i6 = Interval(3, 'major')
self.i7 = Interval(-10, 'minor')
def __sub__(self, other):
"""Substracts from self interval.
Args:
other (Interval): interval to substract from self
Returns:
pitch which is self decreased of other interval
"""
return self + Interval(-other.direction
* (other.number + other.octaves * 7),
other.type_, other.dimAugFolds)
def testAdd(self):
tmp = self.p2
tmp += Interval(3)
self.assertTrue(tmp.eqNames(Pitch('c', 2)))
self.assertTrue((tmp + Interval(2, 'minor')).eqNames(Pitch('d')))
self.assertTrue((tmp + Interval(4)).eqNames(Pitch('f', 2)))
self.assertTrue((tmp + Interval(-5, 'aug')).eqNames(Pitch('f', 0, 0)))
self.assertTrue((tmp + Interval(-2)).eqNames(Pitch('b', 0, 0)))
self.assertTrue((tmp + Interval(5, 'dim')).eqNames(Pitch('g')))
def testInversion(self):
self.assertEqual(self.i1.inversion(), Interval(6, 'minor'))
self.assertEqual(self.i2.inversion(), Interval(4))
self.assertEqual(self.i3.inversion(), Interval(2, 'minor'))
self.assertEqual(self.i5.inversion(), Interval(-5, 'dim', 1))
self.assertEqual(self.i7.inversion(), Interval(-6))
def testNeg(self):
self.assertEqual(-self.i1, Interval(-3))
self.assertEqual(-self.i2, Interval(-5))
self.assertEqual(-self.i3, Interval(-7))
self.assertEqual(-self.i5, Interval(4, 'aug'))
self.assertEqual(-self.i7, Interval(10, 'minor'))
def __sub__(self, other):
return self + Interval(-other.direction * other.number, other.type_,
other.dimAugFolds)
