cpython/Lib/test/test_smtplib.py

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import socket
import threading
import smtplib
import time
from unittest import TestCase
from test import test_support
def server(evt):
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)
try:
conn, addr = serv.accept()
except socket.timeout:
pass
else:
conn.send("220 Hola mundo\n")
conn.close()
finally:
serv.close()
evt.set()
class GeneralTests(TestCase):
def setUp(self):
self.evt = threading.Event()
threading.Thread(target=server, args=(self.evt,)).start()
time.sleep(.1)
def tearDown(self):
self.evt.wait()
def testBasic(self):
# connects
smtp = smtplib.SMTP("localhost", 9091)
smtp.sock.close()
def testTimeoutDefault(self):
# default
smtp = smtplib.SMTP("localhost", 9091)
self.assertTrue(smtp.sock.gettimeout() is None)
smtp.sock.close()
def testTimeoutValue(self):
# a value
smtp = smtplib.SMTP("localhost", 9091, timeout=30)
self.assertEqual(smtp.sock.gettimeout(), 30)
smtp.sock.close()
def testTimeoutNone(self):
# None, having other default
previous = socket.getdefaulttimeout()
socket.setdefaulttimeout(30)
try:
smtp = smtplib.SMTP("localhost", 9091, timeout=None)
finally:
socket.setdefaulttimeout(previous)
self.assertEqual(smtp.sock.gettimeout(), 30)
smtp.sock.close()
def test_main(verbose=None):
test_support.run_unittest(GeneralTests)
if __name__ == '__main__':
test_main()