| """Unit tests for socket timeout feature.""" |
| |
| import unittest |
| from test import support |
| |
| # This requires the 'network' resource as given on the regrtest command line. |
| skip_expected = not 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(0) |
| self.sock.settimeout(0.0) |
| self.sock.settimeout(None) |
| self.assertRaises(TypeError, self.sock.settimeout, "") |
| self.assertRaises(TypeError, self.sock.settimeout, "") |
| 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, -1) |
| 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 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 |
| 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 |
| 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(): |
| support.requires('network') |
| support.run_unittest(CreationTestCase, TimeoutTestCase) |
| |
| if __name__ == "__main__": |
| test_main() |