def test_furthest_notehead_with_one_note(self):
pitches = ["b'"]
chord = Chordrest(Mm(1), self.staff, pitches, Beat(1, 4))
assert chord.furthest_notehead.pitch == Pitch("b'")
pitches = ["f'''"]
chord = Chordrest(Mm(1), self.staff, pitches, Beat(1, 4))
assert chord.furthest_notehead.pitch == Pitch("f'''")
pitches = ["c,,,,"]
chord = Chordrest(Mm(1), self.staff, pitches, Beat(1, 4))
assert chord.furthest_notehead.pitch == Pitch("c,,,,")
def test_pitch_init_common_case(self):
pitch_string = "af,,"
test_pitch = Pitch(pitch_string)
assert test_pitch.pitch == pitch_string
assert test_pitch.letter == "a"
assert test_pitch.accidental_type.value == -1
assert test_pitch.octave == 1
def __init__(
self, pos_x: Unit, pitch: PitchDef, duration: BeatDef, parent: GraphicObject
):
"""
Args:
pos_x (Unit): The x-axis position relative to `parent`.
The y-axis position is calculated automatically based
on `pitch` and contextual information in `self.staff`.
pitch (Pitch or str): May be a `str` pitch representation.
See `Pitch` for valid signatures.
duration (Beat or init tuple): The logical duration of
the notehead. This is used to determine the glyph style.
parent (GraphicObject): Must either be a `Staff` or an object
with an ancestor `Staff`.
"""
self._pitch = Pitch.from_def(pitch)
self._duration = Beat.from_def(duration)
# Use a temporary y-axis position before calculating it for real
MusicText.__init__(
self,
(pos_x, ZERO),
[self._glyphnames[self.duration.base_division]],
parent,
)
StaffObject.__init__(self, parent)
self.y = self.staff.unit(
self.staff_pos - map_between(self.staff, self.parent).y
)
def test__hash__(self):
self.assertEqual({Pitch("c"), Pitch("c"), Pitch("d")}, {Pitch("c"), Pitch("d")})
def test__ne__(self):
assert Pitch("c") != "nonsense"
assert Pitch("c") != Pitch("d")
assert Pitch("c") != Pitch("c,")
assert Pitch("c") != Pitch("cs")
def test__eq__(self):
assert Pitch("c") == Pitch("c")
assert Pitch("c,") == Pitch("c,")
assert Pitch("cs,") == Pitch("cs,")
def test_staff_position_relative_to_middle_c_doesnt_give_negative_0(self):
# Cosmetic regression where Pitch("cs'") might actually be -0.0
assert str(Pitch("cs'").staff_pos_from_middle_c) == "0"
def test_staff_position_relative_to_middle_c(self):
assert Pitch("c'").staff_pos_from_middle_c == 0
assert Pitch("cs'").staff_pos_from_middle_c == 0
assert Pitch("d'").staff_pos_from_middle_c == -0.5
assert Pitch("d''").staff_pos_from_middle_c == -4
assert Pitch("cn,").staff_pos_from_middle_c == 7
def test_diatonic_degree_in_c(self):
# Simple identity test - mostly to raise a flag if the API changes
degrees = {"c": 1, "d": 2, "e": 3, "f": 4, "g": 5, "a": 6, "b": 7}
for letter, number in degrees.items():
assert Pitch(letter).diatonic_degree_in_c == number
def test_pitch_class(self):
assert Pitch("af").pitch_class == 8
def test_apostrophe_octave_marks(self):
assert Pitch("af'").octave == 4
def test_comma_octave_marks(self):
assert Pitch("af,").octave == 2
def test_no_octave_marks(self):
assert Pitch("af").octave == 3
def test_pitch_init_no_letter_fails(self):
with pytest.raises(InvalidPitchDescriptionError):
Pitch("s,")
def test_lowest_notehead(self):
pitches = ["c'", "b'", "c'''"]
chord = Chordrest(Mm(1), self.staff, pitches, Beat(1, 4))
assert chord.lowest_notehead.pitch == Pitch("c'")