def test_creation_from_backend_with_zero_u_channels(self):
"""Test creation of device specification from backend with u_channels == 0.
"""
class DummyBackend:
"""Dummy backend"""
def configuration(self):
# pylint: disable=missing-docstring
class DummyConfig:
@property
def n_qubits(self):
return 2
@property
def n_registers(self):
return 2
@property
def n_uchannels(self):
return 0
@property
def defaults(self):
return {
'qubit_freq_est': [1.2, 3.4],
'meas_freq_est': [1.2, 3.4]
}
return DummyConfig()
device = DeviceSpecification.create_from(DummyBackend())
self.assertEqual(device.q[0].drive, DriveChannel(0, 1.2))
with self.assertRaises(PulseError):
_ = device.q[0].control
def test_creation_from_backend_with_zero_u_channels(self):
"""Test creation of device specification from backend with u_channels == 0.
"""
backend = FakeOpenPulse2Q()
device = DeviceSpecification.create_from(backend)
self.assertEqual(device.q[0].drive, DriveChannel(0))
def test_creation_from_backend_with_zero_u_channels(self):
"""Test creation of device specification from backend with u_channels == 0.
"""
backend = FakeOpenPulse2Q()
# overwrite n_uchannel
backend._configuration.n_uchannels = 0
device = DeviceSpecification.create_from(backend)
self.assertEqual(device.q[0].drive, DriveChannel(0, 4.9, (4.5, 5.5)))
with self.assertRaises(PulseError):
device.q[0].control()