def test_note_add():
s1 = noise.SimpleWave(100, 1, 1)
s2 = noise.SimpleWave(101, 1, 1)
n1 = noise.Note([s1, s2])
n2 = noise.Note([s1])
n3 = n1 + n2
assert n3.get_waves() == n1.get_waves() + n2.get_waves()
def test_stutter_note_add():
sn1 = noise.StutterNote(100, 1, 1)
n1 = noise.Note([noise.SimpleWave(400, 1, 2)])
n2 = sn1 + n1
waves = n2.get_waves()
assert waves[:-1] == sn1.get_waves()
assert waves[-1:] == n1.get_waves()
def test_note_change_amplitude():
s1 = noise.SimpleWave(100, 1, 0.5)
s2 = noise.SimpleWave(101, 1, 1)
n1 = noise.Note([s1, s2])
n1.amplitude = 0.5
wave = n1.play()
half_way = len(wave) // 2
assert wave[:half_way - 10].max() <= 0.25
assert wave[half_way + 10].max() <= 0.5
assert wave[:half_way - 10].min() >= -0.25
assert wave[half_way + 10].min() >= -0.5
def test_note_play():
s1 = noise.SimpleWave(100, 1, 0.5)
s2 = noise.SimpleWave(101, 1, 1)
n1 = noise.Note([s1, s2])
assert n1.play().max() <= 1
assert n1.play().min() >= -1
def test_note_get_duration():
s1 = noise.SimpleWave(100, 1, 1)
s2 = noise.SimpleWave(101, 1, 1)
n1 = noise.Note([s1, s2])
assert abs(n1.get_duration() - 2) < 0.0001
def test_note_get_waves():
s1 = noise.SimpleWave(100, 1, 1)
s2 = noise.SimpleWave(101, 1, 1)
n1 = noise.Note([s1, s2])
assert n1.get_waves()[0] == s1
assert n1.get_waves()[1] == s2
