mirror of https://github.com/Qiskit/qiskit.git
58 lines
1.6 KiB
Python
58 lines
1.6 KiB
Python
# This code is part of Qiskit.
|
|
#
|
|
# (C) Copyright IBM 2017, 2019.
|
|
#
|
|
# This code is licensed under the Apache License, Version 2.0. You may
|
|
# obtain a copy of this license in the LICENSE.txt file in the root directory
|
|
# of this source tree or at http://www.apache.org/licenses/LICENSE-2.0.
|
|
#
|
|
# Any modifications or derivative works of this code must retain this
|
|
# copyright notice, and modified files need to carry a notice indicating
|
|
# that they have been altered from the originals.
|
|
|
|
"""Width pass testing"""
|
|
|
|
import unittest
|
|
|
|
from qiskit import QuantumCircuit, QuantumRegister
|
|
from qiskit.converters import circuit_to_dag
|
|
from qiskit.transpiler.passes import Width
|
|
from test import QiskitTestCase # pylint: disable=wrong-import-order
|
|
|
|
|
|
class TestWidthPass(QiskitTestCase):
|
|
"""Tests for Depth analysis methods."""
|
|
|
|
def test_empty_dag(self):
|
|
"""Empty DAG has 0 depth"""
|
|
circuit = QuantumCircuit()
|
|
dag = circuit_to_dag(circuit)
|
|
|
|
pass_ = Width()
|
|
_ = pass_.run(dag)
|
|
|
|
self.assertEqual(pass_.property_set["width"], 0)
|
|
|
|
def test_just_qubits(self):
|
|
"""A dag with 8 operations and no classic bits"""
|
|
qr = QuantumRegister(2)
|
|
circuit = QuantumCircuit(qr)
|
|
circuit.h(qr[0])
|
|
circuit.h(qr[1])
|
|
circuit.cx(qr[0], qr[1])
|
|
circuit.cx(qr[0], qr[1])
|
|
circuit.cx(qr[0], qr[1])
|
|
circuit.cx(qr[0], qr[1])
|
|
circuit.cx(qr[1], qr[0])
|
|
circuit.cx(qr[1], qr[0])
|
|
dag = circuit_to_dag(circuit)
|
|
|
|
pass_ = Width()
|
|
_ = pass_.run(dag)
|
|
|
|
self.assertEqual(pass_.property_set["width"], 2)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
unittest.main()
|