def test_opaque_gate_with_label(self):
"""Test that custom opaque gate is correctly serialized with a label"""
custom_gate = Gate("black_box", 1, [])
custom_gate.label = "My Special Black Box"
qc = QuantumCircuit(1)
qc.append(custom_gate, [0])
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([x[0].label for x in qc.data], [x[0].label for x in new_circ.data])
def test_custom_gate_with_label(self):
"""Test that custom gate is correctly serialized with a label"""
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
custom_gate.label = "My special black box with a definition"
qc = QuantumCircuit(1)
qc.append(custom_gate, [0])
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())
self.assertEqual([x[0].label for x in qc.data], [x[0].label for x in new_circ.data])
