mirror of https://github.com/Qiskit/qiskit.git
92 lines
3.1 KiB
Python
92 lines
3.1 KiB
Python
# This code is part of Qiskit.
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#
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# (C) Copyright IBM 2020.
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#
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# This code is licensed under the Apache License, Version 2.0. You may
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# obtain a copy of this license in the LICENSE.txt file in the root directory
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# of this source tree or at http://www.apache.org/licenses/LICENSE-2.0.
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#
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# Any modifications or derivative works of this code must retain this
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# copyright notice, and modified files need to carry a notice indicating
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# that they have been altered from the originals.
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"""Tests LogicNetwork.Tweedledum2Qiskit converter."""
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import unittest
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from qiskit.utils.optionals import HAS_TWEEDLEDUM
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from qiskit import QuantumCircuit, QuantumRegister
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from qiskit.circuit.library.standard_gates import XGate
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from test import QiskitTestCase # pylint: disable=wrong-import-order
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if HAS_TWEEDLEDUM:
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# pylint: disable=import-error
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from qiskit.circuit.classicalfunction.utils import tweedledum2qiskit
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from tweedledum.ir import Circuit
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from tweedledum.operators import X
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@unittest.skipUnless(HAS_TWEEDLEDUM, "Tweedledum is required for these tests.")
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class TestTweedledum2Qiskit(QiskitTestCase):
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# pylint: disable=possibly-used-before-assignment
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"""Tests qiskit.transpiler.classicalfunction.utils.tweedledum2qiskit function."""
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def test_x(self):
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"""Single uncontrolled X"""
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tweedledum_circuit = Circuit()
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tweedledum_circuit.apply_operator(X(), [tweedledum_circuit.create_qubit()])
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circuit = tweedledum2qiskit(tweedledum_circuit)
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expected = QuantumCircuit(1)
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expected.x(0)
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self.assertEqual(circuit, expected)
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def test_cx_0_1(self):
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"""CX(0, 1)"""
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tweedledum_circuit = Circuit()
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qubits = []
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qubits.append(tweedledum_circuit.create_qubit())
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qubits.append(tweedledum_circuit.create_qubit())
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tweedledum_circuit.apply_operator(X(), [qubits[0], qubits[1]])
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circuit = tweedledum2qiskit(tweedledum_circuit)
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expected = QuantumCircuit(2)
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expected.append(XGate().control(1, ctrl_state="1"), [0, 1])
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self.assertEqual(circuit, expected)
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def test_cx_1_0(self):
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"""CX(1, 0)"""
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tweedledum_circuit = Circuit()
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qubits = []
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qubits.append(tweedledum_circuit.create_qubit())
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qubits.append(tweedledum_circuit.create_qubit())
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tweedledum_circuit.apply_operator(X(), [qubits[1], qubits[0]])
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circuit = tweedledum2qiskit(tweedledum_circuit)
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expected = QuantumCircuit(2)
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expected.append(XGate().control(1, ctrl_state="1"), [1, 0])
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self.assertEqual(expected, circuit)
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def test_cx_qreg(self):
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"""CX(0, 1) with qregs parameter"""
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tweedledum_circuit = Circuit()
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qubits = []
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qubits.append(tweedledum_circuit.create_qubit())
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qubits.append(tweedledum_circuit.create_qubit())
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tweedledum_circuit.apply_operator(X(), [qubits[1], qubits[0]])
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qr = QuantumRegister(2, "qr")
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circuit = tweedledum2qiskit(tweedledum_circuit, qregs=[qr])
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expected = QuantumCircuit(qr)
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expected.append(XGate().control(1, ctrl_state="1"), [qr[1], qr[0]])
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self.assertEqual(expected, circuit)
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