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-rw-r--r--lib/python2.7/test/test_timeout.py202
1 files changed, 202 insertions, 0 deletions
diff --git a/lib/python2.7/test/test_timeout.py b/lib/python2.7/test/test_timeout.py
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+++ b/lib/python2.7/test/test_timeout.py
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+"""Unit tests for socket timeout feature."""
+
+import unittest
+from test import test_support
+
+# This requires the 'network' resource as given on the regrtest command line.
+skip_expected = not test_support.is_resource_enabled('network')
+
+import time
+import socket
+
+
+class CreationTestCase(unittest.TestCase):
+ """Test case for socket.gettimeout() and socket.settimeout()"""
+
+ def setUp(self):
+ self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+
+ def tearDown(self):
+ self.sock.close()
+
+ def testObjectCreation(self):
+ # Test Socket creation
+ self.assertEqual(self.sock.gettimeout(), None,
+ "timeout not disabled by default")
+
+ def testFloatReturnValue(self):
+ # Test return value of gettimeout()
+ self.sock.settimeout(7.345)
+ self.assertEqual(self.sock.gettimeout(), 7.345)
+
+ self.sock.settimeout(3)
+ self.assertEqual(self.sock.gettimeout(), 3)
+
+ self.sock.settimeout(None)
+ self.assertEqual(self.sock.gettimeout(), None)
+
+ def testReturnType(self):
+ # Test return type of gettimeout()
+ self.sock.settimeout(1)
+ self.assertEqual(type(self.sock.gettimeout()), type(1.0))
+
+ self.sock.settimeout(3.9)
+ self.assertEqual(type(self.sock.gettimeout()), type(1.0))
+
+ def testTypeCheck(self):
+ # Test type checking by settimeout()
+ self.sock.settimeout(0)
+ self.sock.settimeout(0L)
+ self.sock.settimeout(0.0)
+ self.sock.settimeout(None)
+ self.assertRaises(TypeError, self.sock.settimeout, "")
+ self.assertRaises(TypeError, self.sock.settimeout, u"")
+ self.assertRaises(TypeError, self.sock.settimeout, ())
+ self.assertRaises(TypeError, self.sock.settimeout, [])
+ self.assertRaises(TypeError, self.sock.settimeout, {})
+ self.assertRaises(TypeError, self.sock.settimeout, 0j)
+
+ def testRangeCheck(self):
+ # Test range checking by settimeout()
+ self.assertRaises(ValueError, self.sock.settimeout, -1)
+ self.assertRaises(ValueError, self.sock.settimeout, -1L)
+ self.assertRaises(ValueError, self.sock.settimeout, -1.0)
+
+ def testTimeoutThenBlocking(self):
+ # Test settimeout() followed by setblocking()
+ self.sock.settimeout(10)
+ self.sock.setblocking(1)
+ self.assertEqual(self.sock.gettimeout(), None)
+ self.sock.setblocking(0)
+ self.assertEqual(self.sock.gettimeout(), 0.0)
+
+ self.sock.settimeout(10)
+ self.sock.setblocking(0)
+ self.assertEqual(self.sock.gettimeout(), 0.0)
+ self.sock.setblocking(1)
+ self.assertEqual(self.sock.gettimeout(), None)
+
+ def testBlockingThenTimeout(self):
+ # Test setblocking() followed by settimeout()
+ self.sock.setblocking(0)
+ self.sock.settimeout(1)
+ self.assertEqual(self.sock.gettimeout(), 1)
+
+ self.sock.setblocking(1)
+ self.sock.settimeout(1)
+ self.assertEqual(self.sock.gettimeout(), 1)
+
+
+class TimeoutTestCase(unittest.TestCase):
+ """Test case for socket.socket() timeout functions"""
+
+ # There are a number of tests here trying to make sure that an operation
+ # doesn't take too much longer than expected. But competing machine
+ # activity makes it inevitable that such tests will fail at times.
+ # When fuzz was at 1.0, I (tim) routinely saw bogus failures on Win2K
+ # and Win98SE. Boosting it to 2.0 helped a lot, but isn't a real
+ # solution.
+ fuzz = 2.0
+
+ def setUp(self):
+ self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+ self.addr_remote = ('www.python.org.', 80)
+ self.localhost = '127.0.0.1'
+
+ def tearDown(self):
+ self.sock.close()
+
+ def testConnectTimeout(self):
+ # Choose a private address that is unlikely to exist to prevent
+ # failures due to the connect succeeding before the timeout.
+ # Use a dotted IP address to avoid including the DNS lookup time
+ # with the connect time. This avoids failing the assertion that
+ # the timeout occurred fast enough.
+ addr = ('10.0.0.0', 12345)
+
+ # Test connect() timeout
+ _timeout = 0.001
+ self.sock.settimeout(_timeout)
+
+ _t1 = time.time()
+ self.assertRaises(socket.error, self.sock.connect, addr)
+ _t2 = time.time()
+
+ _delta = abs(_t1 - _t2)
+ self.assertTrue(_delta < _timeout + self.fuzz,
+ "timeout (%g) is more than %g seconds more than expected (%g)"
+ %(_delta, self.fuzz, _timeout))
+
+ def testRecvTimeout(self):
+ # Test recv() timeout
+ _timeout = 0.02
+
+ with test_support.transient_internet(self.addr_remote[0]):
+ self.sock.connect(self.addr_remote)
+ self.sock.settimeout(_timeout)
+
+ _t1 = time.time()
+ self.assertRaises(socket.timeout, self.sock.recv, 1024)
+ _t2 = time.time()
+
+ _delta = abs(_t1 - _t2)
+ self.assertTrue(_delta < _timeout + self.fuzz,
+ "timeout (%g) is %g seconds more than expected (%g)"
+ %(_delta, self.fuzz, _timeout))
+
+ def testAcceptTimeout(self):
+ # Test accept() timeout
+ _timeout = 2
+ self.sock.settimeout(_timeout)
+ # Prevent "Address already in use" socket exceptions
+ test_support.bind_port(self.sock, self.localhost)
+ self.sock.listen(5)
+
+ _t1 = time.time()
+ self.assertRaises(socket.error, self.sock.accept)
+ _t2 = time.time()
+
+ _delta = abs(_t1 - _t2)
+ self.assertTrue(_delta < _timeout + self.fuzz,
+ "timeout (%g) is %g seconds more than expected (%g)"
+ %(_delta, self.fuzz, _timeout))
+
+ def testRecvfromTimeout(self):
+ # Test recvfrom() timeout
+ _timeout = 2
+ self.sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+ self.sock.settimeout(_timeout)
+ # Prevent "Address already in use" socket exceptions
+ test_support.bind_port(self.sock, self.localhost)
+
+ _t1 = time.time()
+ self.assertRaises(socket.error, self.sock.recvfrom, 8192)
+ _t2 = time.time()
+
+ _delta = abs(_t1 - _t2)
+ self.assertTrue(_delta < _timeout + self.fuzz,
+ "timeout (%g) is %g seconds more than expected (%g)"
+ %(_delta, self.fuzz, _timeout))
+
+ def testSend(self):
+ # Test send() timeout
+ # couldn't figure out how to test it
+ pass
+
+ def testSendto(self):
+ # Test sendto() timeout
+ # couldn't figure out how to test it
+ pass
+
+ def testSendall(self):
+ # Test sendall() timeout
+ # couldn't figure out how to test it
+ pass
+
+
+def test_main():
+ test_support.requires('network')
+ test_support.run_unittest(CreationTestCase, TimeoutTestCase)
+
+if __name__ == "__main__":
+ test_main()