def test_nested_controlled_gate(self):
"""Test a custom nested controlled gate."""
custom_gate = Gate("black_box", 1, [])
custom_definition = QuantumCircuit(1)
custom_definition.h(0)
custom_definition.rz(1.5, 0)
custom_definition.sdg(0)
custom_gate.definition = custom_definition
qc = QuantumCircuit(3)
qc.append(custom_gate, [0])
controlled_gate = custom_gate.control(2)
qc.append(controlled_gate, [0, 1, 2])
qpy_file = io.BytesIO()
dump(qc, qpy_file)
qpy_file.seek(0)
new_circ = load(qpy_file)[0]
self.assertEqual(qc, new_circ)
self.assertEqual(qc.decompose(), new_circ.decompose())
def generate_open_controlled_gates():
"""Test QPY serialization with custom ControlledGates with open controls."""
circuits = []
qc = QuantumCircuit(3)
controlled_gate = DCXGate().control(1, ctrl_state=0)
qc.append(controlled_gate, [0, 1, 2])
circuits.append(qc)
custom_gate = Gate("black_box", 1, [])
custom_definition = QuantumCircuit(1)
custom_definition.h(0)
custom_definition.rz(1.5, 0)
custom_definition.sdg(0)
custom_gate.definition = custom_definition
nested_qc = QuantumCircuit(3)
nested_qc.append(custom_gate, [0])
controlled_gate = custom_gate.control(2, ctrl_state=1)
nested_qc.append(controlled_gate, [0, 1, 2])
nested_qc.measure_all()
circuits.append(nested_qc)
return circuits
