1 files changed, 25 insertions, 1 deletions
diff --git a/Lib/test/test_traceback.py b/Lib/test/test_traceback.py
index ac49278..6ae8cf5 100644
--- a/Lib/test/test_traceback.py
+++ b/Lib/test/test_traceback.py
@@ -4619,7 +4619,31 @@ class MiscTest(unittest.TestCase):
     @cpython_only
     def test_suggestions_extension(self):
         # Check that the C extension is available
-        import _suggestions  # noqa: F401
+        import _suggestions
+
+        self.assertEqual(
+            _suggestions._generate_suggestions(
+                ["hello", "world"],
+                "hell"
+            ),
+            "hello"
+        )
+        self.assertEqual(
+            _suggestions._generate_suggestions(
+                ["hovercraft"],
+                "eels"
+            ),
+            None
+        )
+
+        # gh-131936: _generate_suggestions() doesn't accept list subclasses
+        class MyList(list):
+            pass
+
+        with self.assertRaises(TypeError):
+            _suggestions._generate_suggestions(MyList(), "")
+
+
 
 
 class TestColorizedTraceback(unittest.TestCase):