def test_set_parameters(self):
"""Test parameters setting."""
for n_qubits in range(10, 100, 30):
with self.subTest(n_qubits=n_qubits):
fake_backend = ConfigurableFakeBackend(
"Tashkent",
n_qubits=n_qubits,
version="0.0.1",
basis_gates=['u1'],
qubit_t1=99.,
qubit_t2=146.,
qubit_frequency=5.,
qubit_readout_error=0.01,
single_qubit_gates=['u1'])
properties = fake_backend.properties()
self.assertEqual(properties.backend_version, "0.0.1")
self.assertEqual(properties.backend_name, "Tashkent")
self.assertEqual(len(properties.qubits), n_qubits)
self.assertEqual(len(properties.gates), n_qubits)
configuration = fake_backend.configuration()
self.assertEqual(configuration.backend_version, "0.0.1")
self.assertEqual(configuration.backend_name, "Tashkent")
self.assertEqual(configuration.n_qubits, n_qubits)
self.assertEqual(configuration.basis_gates, ['u1'])
def test_coupling_map_generation(self):
"""Test generation of default coupling map."""
fake_backend = ConfigurableFakeBackend("Tashkent", n_qubits=10)
cmap = fake_backend.configuration().coupling_map
target = [[0, 1], [0, 4], [1, 2], [1, 5], [2, 3], [2, 6], [3, 7],
[4, 5], [4, 8], [5, 6], [5, 9], [6, 7], [8, 9]]
for couple in cmap:
with self.subTest(coupling=couple):
self.assertTrue(couple in target)
self.assertEqual(len(target), len(cmap))
def test_configuration(self):
"""Test backend configuration."""
fake_backend = ConfigurableFakeBackend("Tashkent", n_qubits=10)
configuration = fake_backend.configuration()
self.assertEqual(configuration.n_qubits, 10)
self.assertEqual(configuration.meas_map, [list(range(10))])
self.assertEqual(len(configuration.hamiltonian['qub']), 10)
self.assertEqual(len(configuration.hamiltonian['vars']), 33)
self.assertEqual(len(configuration.u_channel_lo), 13)
self.assertEqual(len(configuration.meas_lo_range), 10)
self.assertEqual(len(configuration.qubit_lo_range), 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_default_parameters(self):
"""Test default parameters."""
fake_backend = ConfigurableFakeBackend("Tashkent", n_qubits=10)
properties = fake_backend.properties()
self.assertEqual(len(properties.qubits), 10)
self.assertEqual(properties.backend_version, "0.0.0")
self.assertEqual(properties.backend_name, "Tashkent")
configuration = fake_backend.configuration()
self.assertEqual(configuration.backend_version, "0.0.0")
self.assertEqual(configuration.backend_name, "Tashkent")
self.assertEqual(configuration.n_qubits, 10)
self.assertEqual(configuration.basis_gates, ["id", "u1", "u2", "u3", "cx"])
self.assertTrue(configuration.local)
self.assertTrue(configuration.open_pulse)