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import socket
import threading
import telnetlib
import time
from unittest import TestCase
from test import test_support
def server(evt, ready):
serv = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
serv.settimeout(3)
serv.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
serv.bind(("", 9091))
serv.listen(5)
ready.set()
try:
conn, addr = serv.accept()
except socket.timeout:
pass
finally:
serv.close()
evt.set()
class GeneralTests(TestCase):
def setUp(self):
self.evt = threading.Event()
ready = threading.Event()
threading.Thread(target=server, args=(self.evt, ready)).start()
ready.wait()
def tearDown(self):
self.evt.wait()
def testBasic(self):
# connects
telnet = telnetlib.Telnet("localhost", 9091)
telnet.sock.close()
def testTimeoutDefault(self):
# default
telnet = telnetlib.Telnet("localhost", 9091)
self.assertTrue(telnet.sock.gettimeout() is None)
telnet.sock.close()
def testTimeoutValue(self):
# a value
telnet = telnetlib.Telnet("localhost", 9091, timeout=30)
self.assertEqual(telnet.sock.gettimeout(), 30)
telnet.sock.close()
def testTimeoutDifferentOrder(self):
telnet = telnetlib.Telnet(timeout=30)
telnet.open("localhost", 9091)
self.assertEqual(telnet.sock.gettimeout(), 30)
telnet.sock.close()
def testTimeoutNone(self):
# None, having other default
previous = socket.getdefaulttimeout()
socket.setdefaulttimeout(30)
try:
telnet = telnetlib.Telnet("localhost", 9091, timeout=None)
finally:
socket.setdefaulttimeout(previous)
self.assertEqual(telnet.sock.gettimeout(), 30)
telnet.sock.close()
def test_main(verbose=None):
test_support.run_unittest(GeneralTests)
if __name__ == '__main__':
test_main()
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