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Patch 1373 by Adam Hupp.
Fixes intermittent errors in test_xmlrpc due to socket timeouts.
This commit is contained in:
Guido van Rossum
parent
204093ac07
commit
15c974651f
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@ -260,7 +260,6 @@ def div(self, x, y):
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try:
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serv = SimpleXMLRPCServer.SimpleXMLRPCServer(("localhost", 0),
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logRequests=False, bind_and_activate=False)
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serv.socket.settimeout(3)
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serv.server_bind()
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global PORT
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PORT = serv.socket.getsockname()[1]
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@ -284,26 +283,7 @@ def div(self, x, y):
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evt.set()
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def is_unavailable_exception(e):
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'''Returns True if the given ProtocolError is the product of a server-side
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exception caused by the 'temporarily unavailable' response sometimes
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given by operations on non-blocking sockets.'''
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# sometimes we get a -1 error code and/or empty headers
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if e.errcode == -1 or e.headers is None:
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return True
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exc_mess = e.headers.get('X-exception')
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if exc_mess and 'temporarily unavailable' in exc_mess.lower():
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return True
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return False
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# NOTE: The tests in SimpleServerTestCase will ignore failures caused by
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# "temporarily unavailable" exceptions raised in SimpleXMLRPCServer. This
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# condition occurs infrequently on some platforms, frequently on others, and
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# is apparently caused by using SimpleXMLRPCServer with a non-blocking socket.
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# If the server class is updated at some point in the future to handle this
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# situation more gracefully, these tests should be modified appropriately.
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class SimpleServerTestCase(unittest.TestCase):
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def setUp(self):
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@ -335,10 +315,8 @@ def test_simple1(self):
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p = xmlrpclib.ServerProxy('http://localhost:%d' % PORT)
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self.assertEqual(p.pow(6,8), 6**8)
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except xmlrpclib.ProtocolError as e:
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# ignore failures due to non-blocking socket 'unavailable' errors
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if not is_unavailable_exception(e):
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# protocol error; provide additional information in test output
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self.fail("%s\n%s" % (e, e.headers))
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# protocol error; provide additional information in test output
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self.fail("%s\n%s" % (e, e.headers))
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def test_introspection1(self):
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try:
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@ -348,10 +326,8 @@ def test_introspection1(self):
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'system.methodHelp', 'system.methodSignature', 'system.multicall'])
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self.assertEqual(set(meth), expected_methods)
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except xmlrpclib.ProtocolError as e:
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# ignore failures due to non-blocking socket 'unavailable' errors
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if not is_unavailable_exception(e):
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# protocol error; provide additional information in test output
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self.fail("%s\n%s" % (e, e.headers))
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# protocol error; provide additional information in test output
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self.fail("%s\n%s" % (e, e.headers))
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def test_introspection2(self):
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try:
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@ -359,10 +335,8 @@ def test_introspection2(self):
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divhelp = p.system.methodHelp('div')
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self.assertEqual(divhelp, 'This is the div function')
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except xmlrpclib.ProtocolError as e:
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# ignore failures due to non-blocking socket 'unavailable' errors
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if not is_unavailable_exception(e):
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# protocol error; provide additional information in test output
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self.fail("%s\n%s" % (e, e.headers))
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# protocol error; provide additional information in test output
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self.fail("%s\n%s" % (e, e.headers))
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def test_introspection3(self):
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# the SimpleXMLRPCServer doesn't support signatures, but
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@ -372,10 +346,8 @@ def test_introspection3(self):
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divsig = p.system.methodSignature('div')
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self.assertEqual(divsig, 'signatures not supported')
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except xmlrpclib.ProtocolError as e:
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# ignore failures due to non-blocking socket 'unavailable' errors
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if not is_unavailable_exception(e):
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# protocol error; provide additional information in test output
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self.fail("%s\n%s" % (e, e.headers))
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# protocol error; provide additional information in test output
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self.fail("%s\n%s" % (e, e.headers))
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def test_multicall(self):
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try:
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@ -389,10 +361,8 @@ def test_multicall(self):
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self.assertEqual(pow_result, 6**8)
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self.assertEqual(div_result, 127//42)
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except xmlrpclib.ProtocolError as e:
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# ignore failures due to non-blocking socket 'unavailable' errors
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if not is_unavailable_exception(e):
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# protocol error; provide additional information in test output
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self.fail("%s\n%s" % (e, e.headers))
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# protocol error; provide additional information in test output
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self.fail("%s\n%s" % (e, e.headers))
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# This is a contrived way to make a failure occur on the server side
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@ -409,7 +379,7 @@ class FailingServerTestCase(unittest.TestCase):
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def setUp(self):
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self.evt = threading.Event()
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# start server thread to handle requests
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serv_args = (self.evt, 2)
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serv_args = (self.evt, 1)
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threading.Thread(target=http_server, args=serv_args).start()
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# wait for port to be assigned to server
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@ -441,10 +411,8 @@ def test_basic(self):
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p = xmlrpclib.ServerProxy('http://localhost:%d' % PORT)
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self.assertEqual(p.pow(6,8), 6**8)
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except xmlrpclib.ProtocolError as e:
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# ignore failures due to non-blocking socket 'unavailable' errors
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if not is_unavailable_exception(e):
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# protocol error; provide additional information in test output
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self.fail("%s\n%s" % (e, e.headers))
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# protocol error; provide additional information in test output
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self.fail("%s\n%s" % (e, e.headers))
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def test_fail_no_info(self):
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# use the broken message class
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@ -454,11 +422,9 @@ def test_fail_no_info(self):
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p = xmlrpclib.ServerProxy('http://localhost:%d' % PORT)
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p.pow(6,8)
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except xmlrpclib.ProtocolError as e:
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# ignore failures due to non-blocking socket 'unavailable' errors
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if not is_unavailable_exception(e):
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# The two server-side error headers shouldn't be sent back in this case
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self.assertTrue(e.headers.get("X-exception") is None)
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self.assertTrue(e.headers.get("X-traceback") is None)
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# The two server-side error headers shouldn't be sent back in this case
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self.assertTrue(e.headers.get("X-exception") is None)
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self.assertTrue(e.headers.get("X-traceback") is None)
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else:
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self.fail('ProtocolError not raised')
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@ -474,12 +440,10 @@ def test_fail_with_info(self):
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p = xmlrpclib.ServerProxy('http://localhost:%d' % PORT)
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p.pow(6,8)
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except xmlrpclib.ProtocolError as e:
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# ignore failures due to non-blocking socket 'unavailable' errors
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if not is_unavailable_exception(e):
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# We should get error info in the response
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expected_err = "invalid literal for int() with base 10: 'I am broken'"
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self.assertEqual(e.headers.get("x-exception"), expected_err)
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self.assertTrue(e.headers.get("x-traceback") is not None)
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# We should get error info in the response
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expected_err = "invalid literal for int() with base 10: 'I am broken'"
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self.assertEqual(e.headers.get("x-exception"), expected_err)
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self.assertTrue(e.headers.get("x-traceback") is not None)
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else:
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self.fail('ProtocolError not raised')
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