def test_nqubits_getter_and_setter():
from qibo.abstractions import abstract_gates
gate = abstract_gates.Gate()
gate.target_qubits = (0, 1)
gate.control_qubits = (2,)
gate.nqubits = 10
assert gate.nqubits == 10
assert gate.nstates == 1024
def test_qubit_getter_and_setter():
from qibo.abstractions import abstract_gates
gate = abstract_gates.Gate()
gate.target_qubits = (0, 3)
gate.control_qubits = (1, 4, 2)
assert gate.qubits == (1, 2, 4, 0, 3)
gate = abstract_gates.Gate()
with pytest.raises(ValueError):
gate.target_qubits = (1, 1)
gate = abstract_gates.Gate()
with pytest.raises(ValueError):
gate.control_qubits = (1, 1)
gate = abstract_gates.Gate()
gate.target_qubits = (0, 1)
with pytest.raises(ValueError):
gate.control_qubits = (1,)
def test_nqubits_getter_and_setter_errors():
from qibo.abstractions import abstract_gates
gate = abstract_gates.Gate()
with pytest.raises(ValueError):
nqubits = gate.nqubits
with pytest.raises(ValueError):
nstates = gate.nstates
gate.nqubits = 4
with pytest.raises(ValueError):
gate.nqubits = 5
def test_density_matrix_getter_and_setter():
from qibo.abstractions import abstract_gates
gate = abstract_gates.Gate()
gate.target_qubits = (0, 1)
gate.control_qubits = (2,)
assert gate._active_call == "_state_vector_call"
gate.density_matrix = True
assert gate._active_call == "_density_matrix_call"
gate.nqubits = 4
gate.is_prepared = True
with pytest.raises(RuntimeError):
gate.density_matrix = False