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import socket
import threading
import telnetlib
import time
from unittest import TestCase
from test import support
HOST = support.HOST
def server(evt, serv):
serv.listen(5)
evt.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()
self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
self.sock.settimeout(3)
self.port = support.bind_port(self.sock)
threading.Thread(target=server, args=(self.evt,self.sock)).start()
self.evt.wait()
self.evt.clear()
time.sleep(.1)
def tearDown(self):
self.evt.wait()
def testBasic(self):
# connects
telnet = telnetlib.Telnet(HOST, self.port)
telnet.sock.close()
def testTimeoutDefault(self):
# default
telnet = telnetlib.Telnet(HOST, self.port)
self.assertTrue(telnet.sock.gettimeout() is None)
telnet.sock.close()
def testTimeoutValue(self):
# a value
telnet = telnetlib.Telnet(HOST, self.port, timeout=30)
self.assertEqual(telnet.sock.gettimeout(), 30)
telnet.sock.close()
def testTimeoutDifferentOrder(self):
telnet = telnetlib.Telnet(timeout=30)
telnet.open(HOST, self.port)
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(HOST, self.port, timeout=None)
finally:
socket.setdefaulttimeout(previous)
self.assertEqual(telnet.sock.gettimeout(), 30)
telnet.sock.close()
def test_main(verbose=None):
support.run_unittest(GeneralTests)
if __name__ == '__main__':
test_main()
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