def test_pulse_limits(self):
"""Test that limits of pulse norm of one are enforced properly."""
# test norm is correct for complex128 numpy data
unit_pulse_c128 = np.exp(1j*2*np.pi*np.linspace(0, 1, 1000), dtype=np.complex128)
# test does not raise error
try:
Waveform(unit_pulse_c128)
except PulseError:
self.fail('Waveform incorrectly failed on approximately unit norm samples.')
invalid_const = 1.1
with self.assertRaises(PulseError):
Waveform(invalid_const*np.exp(1j*2*np.pi*np.linspace(0, 1, 1000)))
# Test case where data is converted to python types with complex as a list
# with form [re, im] and back to a numpy array.
# This is how the transport layer handles samples in the qobj so it is important
# to test.
unit_pulse_c64 = np.exp(1j*2*np.pi*np.linspace(0, 1, 1000), dtype=np.complex64)
sample_components = np.stack(np.transpose([np.real(unit_pulse_c64),
np.imag(unit_pulse_c64)]))
pulse_list = sample_components.tolist()
recombined_pulse = [sample[0]+sample[1]*1j for sample in pulse_list]
# test does not raise error
try:
Waveform(recombined_pulse)
except PulseError:
self.fail('Waveform incorrectly failed to approximately unit norm samples.')
def test_drive_instruction(self):
"""Test converted qobj from Play."""
converter = InstructionToQobjConverter(PulseQobjInstruction,
meas_level=2)
instruction = Play(Waveform(np.arange(0, 0.01), name='linear'),
DriveChannel(0))
valid_qobj = PulseQobjInstruction(name='linear', ch='d0', t0=0)
self.assertEqual(converter(0, instruction), valid_qobj)
def test_type_casting(self):
"""Test casting of input samples to numpy array."""
n_samples = 100
samples_f64 = np.linspace(0, 1., n_samples, dtype=np.float64)
sample_pulse_f64 = Waveform(samples_f64)
self.assertEqual(sample_pulse_f64.samples.dtype, np.complex128)
samples_c64 = np.linspace(0, 1., n_samples, dtype=np.complex64)
sample_pulse_c64 = Waveform(samples_c64)
self.assertEqual(sample_pulse_c64.samples.dtype, np.complex128)
samples_list = np.linspace(0, 1., n_samples).tolist()
sample_pulse_list = Waveform(samples_list)
self.assertEqual(sample_pulse_list.samples.dtype, np.complex128)
def test_waveform_amplitude_limit(self):
"""Test applying amplitude limit to waveform."""
with builder.build() as test_sched:
builder.play(
Waveform([1, 2, 3, 4, 5], limit_amplitude=False),
DriveChannel(0),
)
self.assert_roundtrip_equal(test_sched)
def setUp(self):
super().setUp()
self.linear = Waveform(np.arange(0, 0.01), name='linear')
self.pulse_library = [PulseLibraryItem(name=self.linear.name,
samples=self.linear.samples.tolist())]
self.converter = QobjToInstructionConverter(self.pulse_library, buffer=0)
self.num_qubits = 2
def apply_sideband(self, pulse, freq):
t_samples = np.linspace(0, self.dt * self.drive_samples,
self.drive_samples)
sine_pulse = np.sin(2 * np.pi * (freq - self.default_qubit_freq) *
t_samples) # no amp for the sine
sideband_pulse = Waveform(np.multiply(np.real(pulse.samples),
sine_pulse),
name='sideband_pulse')
return sideband_pulse
def test_sample_pulse(self):
"""Test pulse initialization."""
n_samples = 100
samples = np.linspace(0, 1., n_samples, dtype=np.complex128)
name = 'test'
sample_pulse = Waveform(samples, name=name)
self.assertEqual(sample_pulse.samples.dtype, np.complex128)
np.testing.assert_almost_equal(sample_pulse.samples, samples)
self.assertEqual(sample_pulse.duration, n_samples)
self.assertEqual(sample_pulse.name, name)