def test_init_duration_to_affect_per_sample(self):
# one sample
m = basic_wave.Modifier(frequency=440)
self.assertEqual(440, m.frequency)
# all samples
m = basic_wave.Modifier(frequency=440, duration=-1)
self.assertEqual(440 / basic_wave.FRAMERATE, m.frequency)
# a few samples
m = basic_wave.Modifier(frequency=440,
phi=3.4,
magnitude=0.56,
offset=0.78,
duration=1.3)
self.assertEqual(440 / (basic_wave.FRAMERATE * 1.3), m.frequency)
self.assertEqual(3.4 / (basic_wave.FRAMERATE * 1.3), m.phi)
self.assertEqual(0.56 / (basic_wave.FRAMERATE * 1.3), m.magnitude)
self.assertEqual(0.78 / (basic_wave.FRAMERATE * 1.3), m.offset)
m = basic_wave.Modifier(frequency=440,
phi=3.4,
magnitude=0.56,
offset=0.78,
duration=0.75)
self.assertEqual(440 / (basic_wave.FRAMERATE * 0.75), m.frequency)
self.assertEqual(3.4 / (basic_wave.FRAMERATE * 0.75), m.phi)
self.assertEqual(0.56 / (basic_wave.FRAMERATE * 0.75), m.magnitude)
self.assertEqual(0.78 / (basic_wave.FRAMERATE * 0.75), m.offset)
def test_modify_no_swap(self):
a = basic_wave.BasicWave(440, 42, 0.63, 0.87)
m = basic_wave.Modifier(frequency=100, phi=10, magnitude=1, offset=0.1)
a.add_modifier(m)
a.play()
self.assertEqual(540, a.frequency)
self.assertEqual(52, a.phi)
self.assertEqual(1.63, a.magnitude)
self.assertEqual(0.97, a.offset)
def test_init_swap_value(self):
m = basic_wave.Modifier(frequency=12,
phi=3.4,
magnitude=0.56,
offset=0.78,
swap=True)
self.assertEqual(12, m.frequency)
self.assertEqual(3.4, m.phi)
self.assertEqual(0.56, m.magnitude)
self.assertEqual(0.78, m.offset)
def test_modify_incremental_change(self):
a = basic_wave.BasicWave(440, 42, 0.63, 0.87)
m = basic_wave.Modifier(frequency=100,
phi=10,
magnitude=1,
offset=0.1,
duration=0.2)
a.add_modifier(m)
a.play()
self.assertEqual(440 + 100 / (basic_wave.FRAMERATE * 0.2), a.frequency)
self.assertEqual(42 + 10 / (basic_wave.FRAMERATE * 0.2), a.phi)
self.assertEqual(0.63 + 1 / (basic_wave.FRAMERATE * 0.2), a.magnitude)
self.assertEqual(0.87 + 0.1 / (basic_wave.FRAMERATE * 0.2), a.offset)
def test_init_modifier_value(self):
# continues
mod = basic_wave.Modifier(frequency=4.81,
phi=5.16,
magnitude=2.3,
offset=4,
start=0,
duration=-1)
self.assertEqual(4.81 / basic_wave.FRAMERATE, mod.frequency)
self.assertEqual(5.16 / basic_wave.FRAMERATE, mod.phi)
self.assertEqual(2.3 / basic_wave.FRAMERATE, mod.magnitude)
self.assertEqual(4 / basic_wave.FRAMERATE, mod.offset)
self.assertEqual(0, mod.affected_sample)
# single
mod = basic_wave.Modifier(frequency=4.81,
phi=5.16,
magnitude=2.3,
offset=4,
start=2)
self.assertEqual(4.81, mod.frequency)
self.assertEqual(5.16, mod.phi)
self.assertEqual(2.3, mod.magnitude)
self.assertEqual(4, mod.offset)
self.assertEqual(2 * basic_wave.FRAMERATE, mod.affected_sample)
def test_init_swap_state(self):
m = basic_wave.Modifier(swap=True)
self.assertEqual(True, m.swap)
def test_init_duration_and_swap(self):
with self.assertRaises(NotImplementedError):
basic_wave.Modifier(duration=1, swap=True)
def test_init_start_at_second_x(self):
m = basic_wave.Modifier(start=5)
self.assertEqual(5 * basic_wave.FRAMERATE, m.affected_sample)
def test_init_start_immediate(self):
m = basic_wave.Modifier()
self.assertEqual(0, m.affected_sample)
def test_init_duration_a_few_seconds(self):
m = basic_wave.Modifier(duration=5)
self.assertEqual(5 * basic_wave.FRAMERATE, m.duration_left)
def test_add_modifier(self):
a = basic_wave.BasicWave(440, pi / 2, 0.63, 0.87)
self.assertEqual(0, len(a.modifiers))
m = basic_wave.Modifier()
a.add_modifier(m)
self.assertEqual(1, len(a.modifiers))
def test_init_duration_one_time(self):
m = basic_wave.Modifier()
self.assertEqual(1, m.duration_left)
def test_init_duration_endless(self):
m = basic_wave.Modifier(duration=-1)
self.assertEqual(-1, m.duration_left)
