also checking decompositions for random 3q cliffords

alexanderivrii · Jan 6, 2025 · 97b3cc9 · 97b3cc9
1 parent 8954d20
commit 97b3cc9
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/test/python/quantum_info/operators/test_random.py b/test/python/quantum_info/operators/test_random.py
@@ -210,6 +210,16 @@ def test_clifford_2q_decompositions(self):
             seen.add(cliff.to_circuit().count_ops().get("cx", 0))
         self.assertEqual(seen, {0, 1, 2, 3})
 
+    def test_clifford_3q_decompositions(self):
+        """Test that we get all possible CX-counts for 3q-random cliffords
+        with sufficiently many trials.
+        """
+        seen = set()
+        for seed in range(10000):
+            cliff = random_clifford(3, seed)
+            seen.add(cliff.to_circuit().count_ops().get("cx", 0))
+        self.assertEqual(seen, {0, 1, 2, 3, 4, 5, 6})
+
 
 @ddt
 class TestRandomPauliList(QiskitTestCase):