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-rw-r--r--Lib/test/test_socket.py4
1 files changed, 4 insertions, 0 deletions
diff --git a/Lib/test/test_socket.py b/Lib/test/test_socket.py
index 66a402b4e3..472f4035f1 100644
--- a/Lib/test/test_socket.py
+++ b/Lib/test/test_socket.py
@@ -543,6 +543,10 @@ class GeneralModuleTests(unittest.TestCase):
self.assertTrue(hasattr(socket, 'SIO_RCVALL'))
self.assertTrue(hasattr(socket, 'RCVALL_ON'))
self.assertTrue(hasattr(socket, 'RCVALL_OFF'))
+ self.assertTrue(hasattr(socket, 'SIO_KEEPALIVE_VALS'))
+ s = socket.socket()
+ self.assertRaises(ValueError, s.ioctl, -1, None)
+ s.ioctl(socket.SIO_KEEPALIVE_VALS, (1, 100, 100))
class BasicTCPTest(SocketConnectedTest):