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import errno
import unittest
import socket as _original_sock
from eventlet.green import socket
class TestSocketErrors(unittest.TestCase):
def test_connection_refused(self):
# open and close a dummy server to find an unused port
server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server.bind(('127.0.0.1', 0))
server.listen(1)
port = server.getsockname()[1]
server.close()
del server
s = socket.socket()
try:
s.connect(('127.0.0.1', port))
self.fail("Shouldn't have connected")
except socket.error as ex:
code, text = ex.args
assert code == errno.ECONNREFUSED, 'Expected ECONNREFUSED, got {0} ({1})'.format(code, text)
assert 'refused' in text.lower(), (code, text)
def test_timeout_real_socket(self):
""" Test underlying socket behavior to ensure correspondence
between green sockets and the underlying socket module. """
return self.test_timeout(socket=_original_sock)
def test_timeout(self, socket=socket):
""" Test that the socket timeout exception works correctly. """
server = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server.bind(('127.0.0.1', 0))
server.listen(1)
port = server.getsockname()[1]
s = socket.socket()
s.connect(('127.0.0.1', port))
cs, addr = server.accept()
cs.settimeout(1)
try:
try:
cs.recv(1024)
self.fail("Should have timed out")
except socket.timeout as ex:
assert hasattr(ex, 'args')
assert len(ex.args) == 1
assert ex.args[0] == 'timed out'
finally:
s.close()
cs.close()
server.close()
def test_create_connection_refused():
try:
socket.create_connection(('127.0.0.1', 1))
assert False, "Shouldn't have connected"
except socket.error as ex:
code, text = ex.args
assert code == errno.ECONNREFUSED, 'Expected ECONNREFUSED, got {0} ({1})'.format(code, text)
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