def test_gaussian_pulse(self):
"""Test that Gaussian sample pulse matches the pulse library."""
gauss = Gaussian(duration=25, sigma=4, amp=0.5j)
sample_pulse = gauss.get_waveform()
self.assertIsInstance(sample_pulse, Waveform)
pulse_lib_gauss = gaussian(duration=25, sigma=4, amp=0.5j, zero_ends=True).samples
np.testing.assert_almost_equal(sample_pulse.samples, pulse_lib_gauss)
def test_sampled_pulse(self):
"""Test that we can convert to a sampled pulse."""
gauss = Gaussian(duration=25, sigma=4, amp=0.5j)
sample_pulse = gauss.get_waveform()
self.assertIsInstance(sample_pulse, Waveform)
pulse_lib_gaus = gaussian(duration=25, sigma=4,
amp=0.5j, zero_ends=False).samples
np.testing.assert_almost_equal(sample_pulse.samples, pulse_lib_gaus)
def test_gaussian_limit_amplitude(self):
"""Test that the check for amplitude less than or equal to 1 can be disabled."""
with self.assertRaises(PulseError):
Gaussian(duration=100, sigma=1.0, amp=1.1 + 0.8j)
with patch("qiskit.pulse.library.pulse.Pulse.limit_amplitude",
new=False):
waveform = Gaussian(duration=100, sigma=1.0, amp=1.1 + 0.8j)
self.assertGreater(np.abs(waveform.amp), 1.0)
def test_gaussian_limit_amplitude_per_instance(self):
"""Test that the check for amplitude per instance."""
with self.assertRaises(PulseError):
Gaussian(duration=100, sigma=1.0, amp=1.1 + 0.8j)
waveform = Gaussian(duration=100,
sigma=1.0,
amp=1.1 + 0.8j,
limit_amplitude=False)
self.assertGreater(np.abs(waveform.amp), 1.0)
def test_gauss_square_extremes(self):
"""Test that the gaussian square pulse can build a gaussian."""
duration = 125
sigma = 4
amp = 0.5j
gaus_square = GaussianSquare(duration=duration, sigma=sigma, amp=amp, width=0)
gaus = Gaussian(duration=duration, sigma=sigma, amp=amp)
np.testing.assert_almost_equal(gaus_square.get_waveform().samples,
gaus.get_waveform().samples)
gaus_square = GaussianSquare(duration=duration, sigma=sigma, amp=amp, width=121)
const = Constant(duration=duration, amp=amp)
np.testing.assert_almost_equal(gaus_square.get_waveform().samples[2:-2],
const.get_waveform().samples[2:-2])
def test_gauss_samples(self):
"""Test that the gaussian samples match the formula."""
duration = 25
sigma = 4
amp = 0.5j
# formulaic
times = np.array(range(25), dtype=np.complex_)
times = times - (duration / 2) + 0.5
gauss = amp * np.exp(-(times / sigma)**2 / 2)
# wf
wf = Gaussian(duration=duration, sigma=sigma, amp=amp)
samples = wf.get_waveform().samples
np.testing.assert_almost_equal(samples, gauss)
def test_gaussian_limit_amplitude(self):
"""Test that the check for amplitude less than or equal to 1 can be disabled."""
waveform = Gaussian(duration=100,
sigma=1.0,
amp=1.1 + 0.8j,
limit_amplitude=False)
self.assertGreater(np.abs(waveform.amp), 1.0)
with self.assertRaises(PulseError):
Gaussian(duration=100,
sigma=1.0,
amp=1.1 + 0.8j,
limit_amplitude=True)
def test_param_validation(self):
"""Test that parametric pulse parameters are validated when initialized."""
with self.assertRaises(PulseError):
Gaussian(duration=25, sigma=0, amp=0.5j)
with self.assertRaises(PulseError):
GaussianSquare(duration=150, amp=0.2, sigma=8)
with self.assertRaises(PulseError):
GaussianSquare(duration=150,
amp=0.2,
sigma=8,
width=100,
risefall_sigma_ratio=5)
with self.assertRaises(PulseError):
GaussianSquare(duration=150, amp=0.2, sigma=8, width=160)
with self.assertRaises(PulseError):
GaussianSquare(duration=150,
amp=0.2,
sigma=8,
risefall_sigma_ratio=10)
with self.assertRaises(PulseError):
Constant(duration=150, amp=0.9 + 0.8j)
with self.assertRaises(PulseError):
Drag(duration=25, amp=0.2 + 0.3j, sigma=-7.8, beta=4)
with self.assertRaises(PulseError):
Drag(duration=25, amp=0.2 + 0.3j, sigma=7.8, beta=4j)
def test_construction(self):
"""Test that parametric pulses can be constructed without error."""
Gaussian(duration=25, sigma=4, amp=0.5j)
GaussianSquare(duration=150, amp=0.2, sigma=8, width=140)
GaussianSquare(duration=150, amp=0.2, sigma=8, risefall_sigma_ratio=2.5)
Constant(duration=150, amp=0.1 + 0.4j)
Drag(duration=25, amp=0.2 + 0.3j, sigma=7.8, beta=4)
def test_symbolic_amplitude_limit(self):
"""Test applying amplitude limit to symbolic pulse."""
with builder.build() as test_sched:
builder.play(
Gaussian(160, 20, 40, limit_amplitude=False),
DriveChannel(0),
)
self.assert_roundtrip_equal(test_sched)
def test_repr(self):
"""Test the repr methods for parametric pulses."""
gaus = Gaussian(duration=25, amp=0.7, sigma=4)
self.assertEqual(repr(gaus), 'Gaussian(duration=25, amp=(0.7+0j), sigma=4)')
gaus_square = GaussianSquare(duration=20, sigma=30, amp=1.0, width=3)
self.assertEqual(repr(gaus_square),
'GaussianSquare(duration=20, amp=(1+0j), sigma=30, width=3)')
drag = Drag(duration=5, amp=0.5, sigma=7, beta=1)
self.assertEqual(repr(drag), 'Drag(duration=5, amp=(0.5+0j), sigma=7, beta=1)')
const = Constant(duration=150, amp=0.1 + 0.4j)
self.assertEqual(repr(const), 'Constant(duration=150, amp=(0.1+0.4j))')
def test_gaussian_pulse_instruction(self):
"""Test that parametric pulses are correctly converted to PulseQobjInstructions."""
converter = InstructionToQobjConverter(PulseQobjInstruction, meas_level=2)
instruction = Play(Gaussian(duration=25, sigma=15, amp=-0.5 + 0.2j), DriveChannel(0))
valid_qobj = PulseQobjInstruction(
name='parametric_pulse',
pulse_shape='gaussian',
ch='d0',
t0=0,
parameters={'duration': 25, 'sigma': 15, 'amp': -0.5 + 0.2j})
self.assertEqual(converter(0, instruction), valid_qobj)
def test_parametric_pulses(self):
"""Test converted qobj from ParametricInstruction."""
instruction = Play(Gaussian(duration=25, sigma=15, amp=-0.5 + 0.2j), DriveChannel(0))
qobj = PulseQobjInstruction(
name='parametric_pulse',
pulse_shape='gaussian',
ch='d0',
t0=0,
parameters={'duration': 25, 'sigma': 15, 'amp': -0.5 + 0.2j})
converted_instruction = self.converter(qobj)
self.assertEqual(converted_instruction.start_time, 0)
self.assertEqual(converted_instruction.duration, 25)
self.assertEqual(converted_instruction.instructions[0][-1], instruction)
def test_gaussian_pulse_instruction(self):
"""Test that parametric pulses are correctly converted to PulseQobjInstructions."""
converter = InstructionToQobjConverter(PulseQobjInstruction,
meas_level=2)
instruction = Play(Gaussian(duration=25, sigma=15, amp=-0.5 + 0.2j),
DriveChannel(0))
valid_qobj = PulseQobjInstruction(
name="parametric_pulse",
pulse_shape="gaussian",
ch="d0",
t0=0,
parameters={
"duration": 25,
"sigma": 15,
"amp": -0.5 + 0.2j
},
)
self.assertEqual(converter(0, instruction), valid_qobj)
def test_parametric_pulses(self):
"""Test converted qobj from ParametricInstruction."""
instruction = Play(
Gaussian(duration=25, sigma=15, amp=-0.5 + 0.2j, name="pulse1"),
DriveChannel(0))
qobj = PulseQobjInstruction(
name="parametric_pulse",
label="pulse1",
pulse_shape="gaussian",
ch="d0",
t0=0,
parameters={
"duration": 25,
"sigma": 15,
"amp": -0.5 + 0.2j
},
)
converted_instruction = self.converter(qobj)
self.assertEqual(converted_instruction.start_time, 0)
self.assertEqual(converted_instruction.duration, 25)
self.assertEqual(converted_instruction.instructions[0][-1],
instruction)
self.assertEqual(converted_instruction.instructions[0][-1].pulse.name,
"pulse1")
def test_parameterized(self, channel, *params):
"""Test playing parameterized pulse."""
# pylint: disable=no-value-for-parameter
with builder.build() as test_sched:
builder.play(Gaussian(*params), DriveChannel(channel))
self.assert_roundtrip_equal(test_sched)
