def test_defaults(self):
"""Test backend defaults."""
fake_backend = ConfigurableFakeBackend("Tashkent", n_qubits=10)
defaults = fake_backend.defaults()
self.assertEqual(len(defaults.cmd_def), 54)
self.assertEqual(len(defaults.meas_freq_est), 10)
self.assertEqual(len(defaults.qubit_freq_est), 10)
def test_with_coupling_map(self):
"""Test backend generation with coupling map."""
target_coupling_map = [[0, 1], [1, 2], [2, 3]]
fake_backend = ConfigurableFakeBackend(
"Tashkent", n_qubits=4, coupling_map=target_coupling_map
)
cmd_def = fake_backend.defaults().cmd_def
configured_cmap = fake_backend.configuration().coupling_map
controlled_not_qubits = [cmd.qubits for cmd in cmd_def if cmd.name == "cx"]
self.assertEqual(controlled_not_qubits, target_coupling_map)
self.assertEqual(configured_cmap, target_coupling_map)
def test_measure_all(self):
"""Test utility function - measure."""
with pulse.build(self.backend) as schedule:
regs = pulse.measure_all()
self.assertEqual(regs, [pulse.MemorySlot(0), pulse.MemorySlot(1)])
reference = macros.measure_all(self.backend)
self.assertEqual(schedule, reference)
backend_100q = ConfigurableBackend('100q', 100)
with pulse.build(backend_100q) as schedule:
regs = pulse.measure_all()
reference = backend_100q.defaults().instruction_schedule_map.\
get('measure', list(range(100)))
self.assertEqual(schedule, reference)