def test_note_conversion_back_and_forth(self):
"""Tests that notes converted to frequencies and back are the same
notes."""
for note in self.notes:
frequency = sound.note_to_frequency(note)
result_note = sound.frequency_to_note(frequency)
assert note == result_note, "note %d != %d" % (note, result_note)
def test_frequency_to_note(self):
#Middle C
semitone = sound.frequency_to_note(261.63)
assert semitone == 60
def test_middle_c_maps_to_note_value_60(self):
"""Tests that C4 (middle C) maps to a note value of 60."""
c4freq = 261.63 # in Hertz
c4note = sound.frequency_to_note(c4freq)
assert c4note == 60, "C4 maps to note value %d, not 60" % (c4note)
def equal_temperament_note(freq):
return sound.note_to_frequency(sound.frequency_to_note(freq))
