def test_semitones_to_chord_options(semitones, options):
assert semitones_to_chord_name_options(semitones) == options
if options:
assert Chord.from_semitones(None, semitones).name == options[0]
else:
assert Chord.from_semitones(None, semitones).name == Chord.UNNAMED
def test_chord_from_semitones(semi_in, semi_out):
assert Chord.from_semitones("unnamed", semi_in).semitones == semi_out