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-rw-r--r--Lib/test/pickletester.py18
1 files changed, 18 insertions, 0 deletions
diff --git a/Lib/test/pickletester.py b/Lib/test/pickletester.py
index 4e8d4e4f64..18d7f52ecf 100644
--- a/Lib/test/pickletester.py
+++ b/Lib/test/pickletester.py
@@ -2773,6 +2773,15 @@ class AbstractPickleTests:
unpickled = self.loads(self.dumps(method, proto))
self.assertEqual(method(obj), unpickled(obj))
+ descriptors = (
+ PyMethodsTest.__dict__['cheese'], # static method descriptor
+ PyMethodsTest.__dict__['wine'], # class method descriptor
+ )
+ for proto in range(pickle.HIGHEST_PROTOCOL + 1):
+ for descr in descriptors:
+ with self.subTest(proto=proto, descr=descr):
+ self.assertRaises(TypeError, self.dumps, descr, proto)
+
def test_c_methods(self):
global Subclass
class Subclass(tuple):
@@ -2808,6 +2817,15 @@ class AbstractPickleTests:
unpickled = self.loads(self.dumps(method, proto))
self.assertEqual(method(*args), unpickled(*args))
+ descriptors = (
+ bytearray.__dict__['maketrans'], # built-in static method descriptor
+ dict.__dict__['fromkeys'], # built-in class method descriptor
+ )
+ for proto in range(pickle.HIGHEST_PROTOCOL + 1):
+ for descr in descriptors:
+ with self.subTest(proto=proto, descr=descr):
+ self.assertRaises(TypeError, self.dumps, descr, proto)
+
def test_compat_pickle(self):
tests = [
(range(1, 7), '__builtin__', 'xrange'),