def test_modulation(self):
pyo = DummyPyoObject()
player = PyoPlayer(pyo, interval=(1, 4),
clock=self.clock,
args={'freq': cycle([1, 2, 3]).next})
player.resumePlaying()
self.runTicks(96)
expected = [('setFreq', 1), ('setFreq', 2), ('setFreq', 3),
('setFreq', 1), ('setFreq', 2)]
self.assertEqual(pyo.calls, expected)
player.updateArgs(freq=cycle([4, 5, 6]).next,
mul=cycle([0.25, 0.125]).next)
pyo.calls = []
self.runTicks(96)
expected = [('setMul', 0.25), ('setFreq', 4), ('setMul', 0.125),
('setFreq', 5), ('setMul', 0.25), ('setFreq', 6),
('setMul', 0.125), ('setFreq', 4)]
