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bpo-31323: Fix reference leak in test_ssl #3263

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Merged
merged 1 commit into from
Sep 1, 2017
Merged

bpo-31323: Fix reference leak in test_ssl #3263

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8 changes: 6 additions & 2 deletions Lib/test/test_ssl.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1889,7 +1889,11 @@ def wrap_conn(self):
# XXX Various errors can have happened here, for example
# a mismatching protocol version, an invalid certificate,
# or a low-level bug. This should be made more discriminating.
self.server.conn_errors.append(e)
#
# bpo-31323: Store the exception as string to prevent
# a reference leak: server -> conn_errors -> exception
# -> traceback -> self (ConnectionHandler) -> server
self.server.conn_errors.append(str(e))
if self.server.chatty:
handle_error("\n server: bad connection attempt from " + repr(self.addr) + ":\n")
self.running = False
Expand Down Expand Up @@ -3097,7 +3101,7 @@ def test_default_ciphers(self):
with context.wrap_socket(socket.socket()) as s:
with self.assertRaises(OSError):
s.connect((HOST, server.port))
self.assertIn("no shared cipher", str(server.conn_errors[0]))
self.assertIn("no shared cipher", server.conn_errors[0])

def test_version_basic(self):
"""
Expand Down