1 files changed, 39 insertions, 0 deletions
diff --git a/Lib/test/test_capi/test_misc.py b/Lib/test/test_capi/test_misc.py
index 03e22d7a2d3..7612cddb1f6 100644
--- a/Lib/test/test_capi/test_misc.py
+++ b/Lib/test/test_capi/test_misc.py
@@ -1553,5 +1553,44 @@ class Test_Pep523API(unittest.TestCase):
         self.do_test(func2)
 
 
+class Test_ErrSetAndRestore(unittest.TestCase):
+
+    def test_err_set_raised(self):
+        with self.assertRaises(ValueError):
+            _testcapi.err_set_raised(ValueError())
+        v = ValueError()
+        try:
+            _testcapi.err_set_raised(v)
+        except ValueError as ex:
+            self.assertIs(v, ex)
+
+    def test_err_restore(self):
+        with self.assertRaises(ValueError):
+            _testcapi.err_restore(ValueError)
+        with self.assertRaises(ValueError):
+            _testcapi.err_restore(ValueError, 1)
+        with self.assertRaises(ValueError):
+            _testcapi.err_restore(ValueError, 1, None)
+        with self.assertRaises(ValueError):
+            _testcapi.err_restore(ValueError, ValueError())
+        try:
+            _testcapi.err_restore(KeyError, "hi")
+        except KeyError as k:
+            self.assertEqual("hi", k.args[0])
+        try:
+            1/0
+        except Exception as e:
+            tb = e.__traceback__
+        with self.assertRaises(ValueError):
+            _testcapi.err_restore(ValueError, 1, tb)
+        with self.assertRaises(TypeError):
+            _testcapi.err_restore(ValueError, 1, 0)
+        try:
+            _testcapi.err_restore(ValueError, 1, tb)
+        except ValueError as v:
+            self.assertEqual(1, v.args[0])
+            self.assertIs(tb, v.__traceback__.tb_next)
+
+
 if __name__ == "__main__":
     unittest.main()