Add unit test and release note

releasenotes/notes/translate-subexperiments-08be7848b440f6ed.yaml

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+---
+features:
+  - |
+      The functions, :func:`.generate_qpd_experiments` and :func:`decompose_qpd_instructions`, now accept an optional argument, ``translate_to_qpu``, which accepts a string denoting whether the instructions sampled for cutting should be translated to a particular QPU architecture. Accepted inputs are: ``{"heron", "eagle"}``.

test/utils/test_equivalence.py

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+# This code is a Qiskit project.
+
+# (C) Copyright IBM 2024.
+
+# 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.
+
+"""Tests for CKT equivalence libraries."""
+
+import unittest
+
+import numpy as np
+from qiskit.circuit import EquivalenceLibrary
+from qiskit.circuit.library.standard_gates import SdgGate
+
+
+from circuit_knitting.utils.equivalence import equivalence_libraries
+
+
+class TestEquivalenceLibraries(unittest.TestCase):
+    def setUp(self):
+        self.heron_lib = equivalence_libraries["heron"]
+        self.eagle_lib = equivalence_libraries["eagle"]
+        self.standard_lib = equivalence_libraries["standard"]
+
+    def test_equivalence_library_dict(self):
+        assert isinstance(self.heron_lib, EquivalenceLibrary)
+        assert isinstance(self.eagle_lib, EquivalenceLibrary)
+        assert self.standard_lib == None
+
+    def test_equivalence_heron(self):
+        heron_equivalence = self.heron_lib.get_entry(SdgGate())[0]
+        assert heron_equivalence.data[0].operation.name == "rz"
+        assert heron_equivalence.data[0].operation.params == [-np.pi / 2]
+
+    def test_equivalence_eagle(self):
+        eagle_equivalence = self.eagle_lib.get_entry(SdgGate())[0]
+        assert eagle_equivalence.data[0].operation.name == "rz"
+        assert eagle_equivalence.data[0].operation.params == [-np.pi / 2]