761 lines
23 KiB
Python
761 lines
23 KiB
Python
import asyncore
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import unittest
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import select
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import os
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import socket
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import sys
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import time
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import warnings
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import errno
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import struct
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from test import test_support
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from test.test_support import TESTFN, run_unittest, unlink, HOST
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from StringIO import StringIO
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try:
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import threading
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except ImportError:
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threading = None
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class dummysocket:
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def __init__(self):
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self.closed = False
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def close(self):
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self.closed = True
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def fileno(self):
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return 42
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class dummychannel:
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def __init__(self):
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self.socket = dummysocket()
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def close(self):
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self.socket.close()
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class exitingdummy:
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def __init__(self):
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pass
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def handle_read_event(self):
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raise asyncore.ExitNow()
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handle_write_event = handle_read_event
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handle_close = handle_read_event
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handle_expt_event = handle_read_event
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class crashingdummy:
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def __init__(self):
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self.error_handled = False
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def handle_read_event(self):
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raise Exception()
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handle_write_event = handle_read_event
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handle_close = handle_read_event
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handle_expt_event = handle_read_event
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def handle_error(self):
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self.error_handled = True
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# used when testing senders; just collects what it gets until newline is sent
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def capture_server(evt, buf, serv):
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try:
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serv.listen(5)
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conn, addr = serv.accept()
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except socket.timeout:
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pass
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else:
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n = 200
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while n > 0:
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r, w, e = select.select([conn], [], [])
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if r:
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data = conn.recv(10)
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# keep everything except for the newline terminator
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buf.write(data.replace('\n', ''))
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if '\n' in data:
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break
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n -= 1
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time.sleep(0.01)
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conn.close()
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finally:
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serv.close()
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evt.set()
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class HelperFunctionTests(unittest.TestCase):
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def test_readwriteexc(self):
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# Check exception handling behavior of read, write and _exception
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# check that ExitNow exceptions in the object handler method
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# bubbles all the way up through asyncore read/write/_exception calls
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tr1 = exitingdummy()
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self.assertRaises(asyncore.ExitNow, asyncore.read, tr1)
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self.assertRaises(asyncore.ExitNow, asyncore.write, tr1)
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self.assertRaises(asyncore.ExitNow, asyncore._exception, tr1)
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# check that an exception other than ExitNow in the object handler
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# method causes the handle_error method to get called
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tr2 = crashingdummy()
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asyncore.read(tr2)
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self.assertEqual(tr2.error_handled, True)
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tr2 = crashingdummy()
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asyncore.write(tr2)
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self.assertEqual(tr2.error_handled, True)
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tr2 = crashingdummy()
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asyncore._exception(tr2)
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self.assertEqual(tr2.error_handled, True)
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# asyncore.readwrite uses constants in the select module that
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# are not present in Windows systems (see this thread:
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# http://mail.python.org/pipermail/python-list/2001-October/109973.html)
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# These constants should be present as long as poll is available
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@unittest.skipUnless(hasattr(select, 'poll'), 'select.poll required')
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def test_readwrite(self):
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# Check that correct methods are called by readwrite()
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attributes = ('read', 'expt', 'write', 'closed', 'error_handled')
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expected = (
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(select.POLLIN, 'read'),
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(select.POLLPRI, 'expt'),
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(select.POLLOUT, 'write'),
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(select.POLLERR, 'closed'),
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(select.POLLHUP, 'closed'),
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(select.POLLNVAL, 'closed'),
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)
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class testobj:
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def __init__(self):
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self.read = False
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self.write = False
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self.closed = False
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self.expt = False
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self.error_handled = False
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def handle_read_event(self):
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self.read = True
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def handle_write_event(self):
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self.write = True
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def handle_close(self):
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self.closed = True
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def handle_expt_event(self):
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self.expt = True
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def handle_error(self):
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self.error_handled = True
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for flag, expectedattr in expected:
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tobj = testobj()
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self.assertEqual(getattr(tobj, expectedattr), False)
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asyncore.readwrite(tobj, flag)
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# Only the attribute modified by the routine we expect to be
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# called should be True.
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for attr in attributes:
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self.assertEqual(getattr(tobj, attr), attr==expectedattr)
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# check that ExitNow exceptions in the object handler method
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# bubbles all the way up through asyncore readwrite call
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tr1 = exitingdummy()
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self.assertRaises(asyncore.ExitNow, asyncore.readwrite, tr1, flag)
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# check that an exception other than ExitNow in the object handler
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# method causes the handle_error method to get called
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tr2 = crashingdummy()
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self.assertEqual(tr2.error_handled, False)
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asyncore.readwrite(tr2, flag)
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self.assertEqual(tr2.error_handled, True)
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def test_closeall(self):
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self.closeall_check(False)
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def test_closeall_default(self):
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self.closeall_check(True)
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def closeall_check(self, usedefault):
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# Check that close_all() closes everything in a given map
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l = []
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testmap = {}
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for i in range(10):
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c = dummychannel()
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l.append(c)
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self.assertEqual(c.socket.closed, False)
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testmap[i] = c
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if usedefault:
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socketmap = asyncore.socket_map
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try:
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asyncore.socket_map = testmap
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asyncore.close_all()
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finally:
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testmap, asyncore.socket_map = asyncore.socket_map, socketmap
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else:
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asyncore.close_all(testmap)
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self.assertEqual(len(testmap), 0)
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for c in l:
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self.assertEqual(c.socket.closed, True)
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def test_compact_traceback(self):
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try:
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raise Exception("I don't like spam!")
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except:
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real_t, real_v, real_tb = sys.exc_info()
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r = asyncore.compact_traceback()
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else:
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self.fail("Expected exception")
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(f, function, line), t, v, info = r
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self.assertEqual(os.path.split(f)[-1], 'test_asyncore.py')
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self.assertEqual(function, 'test_compact_traceback')
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self.assertEqual(t, real_t)
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self.assertEqual(v, real_v)
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self.assertEqual(info, '[%s|%s|%s]' % (f, function, line))
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class DispatcherTests(unittest.TestCase):
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def setUp(self):
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pass
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def tearDown(self):
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asyncore.close_all()
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def test_basic(self):
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d = asyncore.dispatcher()
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self.assertEqual(d.readable(), True)
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self.assertEqual(d.writable(), True)
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def test_repr(self):
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d = asyncore.dispatcher()
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self.assertEqual(repr(d), '<asyncore.dispatcher at %#x>' % id(d))
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def test_log(self):
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d = asyncore.dispatcher()
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# capture output of dispatcher.log() (to stderr)
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fp = StringIO()
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stderr = sys.stderr
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l1 = "Lovely spam! Wonderful spam!"
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l2 = "I don't like spam!"
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try:
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sys.stderr = fp
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d.log(l1)
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d.log(l2)
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finally:
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sys.stderr = stderr
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lines = fp.getvalue().splitlines()
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self.assertEqual(lines, ['log: %s' % l1, 'log: %s' % l2])
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def test_log_info(self):
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d = asyncore.dispatcher()
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# capture output of dispatcher.log_info() (to stdout via print)
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fp = StringIO()
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stdout = sys.stdout
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l1 = "Have you got anything without spam?"
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l2 = "Why can't she have egg bacon spam and sausage?"
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l3 = "THAT'S got spam in it!"
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try:
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sys.stdout = fp
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d.log_info(l1, 'EGGS')
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d.log_info(l2)
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d.log_info(l3, 'SPAM')
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finally:
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sys.stdout = stdout
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lines = fp.getvalue().splitlines()
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expected = ['EGGS: %s' % l1, 'info: %s' % l2, 'SPAM: %s' % l3]
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self.assertEqual(lines, expected)
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def test_unhandled(self):
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d = asyncore.dispatcher()
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d.ignore_log_types = ()
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# capture output of dispatcher.log_info() (to stdout via print)
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fp = StringIO()
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stdout = sys.stdout
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try:
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sys.stdout = fp
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d.handle_expt()
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d.handle_read()
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d.handle_write()
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d.handle_connect()
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d.handle_accept()
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finally:
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sys.stdout = stdout
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lines = fp.getvalue().splitlines()
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expected = ['warning: unhandled incoming priority event',
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'warning: unhandled read event',
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'warning: unhandled write event',
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'warning: unhandled connect event',
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'warning: unhandled accept event']
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self.assertEqual(lines, expected)
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def test_issue_8594(self):
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# XXX - this test is supposed to be removed in next major Python
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# version
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d = asyncore.dispatcher(socket.socket())
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# make sure the error message no longer refers to the socket
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# object but the dispatcher instance instead
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self.assertRaisesRegexp(AttributeError, 'dispatcher instance',
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getattr, d, 'foo')
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# cheap inheritance with the underlying socket is supposed
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# to still work but a DeprecationWarning is expected
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with warnings.catch_warnings(record=True) as w:
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warnings.simplefilter("always")
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family = d.family
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self.assertEqual(family, socket.AF_INET)
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self.assertEqual(len(w), 1)
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self.assertTrue(issubclass(w[0].category, DeprecationWarning))
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def test_strerror(self):
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# refers to bug #8573
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err = asyncore._strerror(errno.EPERM)
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if hasattr(os, 'strerror'):
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self.assertEqual(err, os.strerror(errno.EPERM))
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err = asyncore._strerror(-1)
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self.assertTrue(err != "")
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class dispatcherwithsend_noread(asyncore.dispatcher_with_send):
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def readable(self):
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return False
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def handle_connect(self):
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pass
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class DispatcherWithSendTests(unittest.TestCase):
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usepoll = False
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def setUp(self):
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pass
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def tearDown(self):
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asyncore.close_all()
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@unittest.skipUnless(threading, 'Threading required for this test.')
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@test_support.reap_threads
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def test_send(self):
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evt = threading.Event()
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sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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sock.settimeout(3)
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port = test_support.bind_port(sock)
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cap = StringIO()
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args = (evt, cap, sock)
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t = threading.Thread(target=capture_server, args=args)
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t.start()
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try:
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# wait a little longer for the server to initialize (it sometimes
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# refuses connections on slow machines without this wait)
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time.sleep(0.2)
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data = "Suppose there isn't a 16-ton weight?"
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d = dispatcherwithsend_noread()
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d.create_socket(socket.AF_INET, socket.SOCK_STREAM)
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d.connect((HOST, port))
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# give time for socket to connect
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time.sleep(0.1)
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d.send(data)
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d.send(data)
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d.send('\n')
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n = 1000
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while d.out_buffer and n > 0:
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asyncore.poll()
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n -= 1
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evt.wait()
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self.assertEqual(cap.getvalue(), data*2)
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finally:
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t.join()
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class DispatcherWithSendTests_UsePoll(DispatcherWithSendTests):
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usepoll = True
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@unittest.skipUnless(hasattr(asyncore, 'file_wrapper'),
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'asyncore.file_wrapper required')
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class FileWrapperTest(unittest.TestCase):
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def setUp(self):
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self.d = "It's not dead, it's sleeping!"
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with file(TESTFN, 'w') as h:
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h.write(self.d)
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def tearDown(self):
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unlink(TESTFN)
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def test_recv(self):
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fd = os.open(TESTFN, os.O_RDONLY)
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w = asyncore.file_wrapper(fd)
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os.close(fd)
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self.assertNotEqual(w.fd, fd)
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self.assertNotEqual(w.fileno(), fd)
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self.assertEqual(w.recv(13), "It's not dead")
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self.assertEqual(w.read(6), ", it's")
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w.close()
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self.assertRaises(OSError, w.read, 1)
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def test_send(self):
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d1 = "Come again?"
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d2 = "I want to buy some cheese."
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fd = os.open(TESTFN, os.O_WRONLY | os.O_APPEND)
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w = asyncore.file_wrapper(fd)
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os.close(fd)
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w.write(d1)
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w.send(d2)
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w.close()
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self.assertEqual(file(TESTFN).read(), self.d + d1 + d2)
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@unittest.skipUnless(hasattr(asyncore, 'file_dispatcher'),
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'asyncore.file_dispatcher required')
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def test_dispatcher(self):
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fd = os.open(TESTFN, os.O_RDONLY)
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data = []
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class FileDispatcher(asyncore.file_dispatcher):
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def handle_read(self):
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data.append(self.recv(29))
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s = FileDispatcher(fd)
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os.close(fd)
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asyncore.loop(timeout=0.01, use_poll=True, count=2)
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self.assertEqual(b"".join(data), self.d)
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def test_close_twice(self):
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fd = os.open(TESTFN, os.O_RDONLY)
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f = asyncore.file_wrapper(fd)
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os.close(fd)
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os.close(f.fd) # file_wrapper dupped fd
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with self.assertRaises(OSError):
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f.close()
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self.assertEqual(f.fd, -1)
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# calling close twice should not fail
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f.close()
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class BaseTestHandler(asyncore.dispatcher):
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def __init__(self, sock=None):
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asyncore.dispatcher.__init__(self, sock)
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self.flag = False
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def handle_accept(self):
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raise Exception("handle_accept not supposed to be called")
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def handle_connect(self):
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raise Exception("handle_connect not supposed to be called")
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def handle_expt(self):
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raise Exception("handle_expt not supposed to be called")
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def handle_close(self):
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raise Exception("handle_close not supposed to be called")
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def handle_error(self):
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raise
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class TCPServer(asyncore.dispatcher):
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"""A server which listens on an address and dispatches the
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connection to a handler.
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"""
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def __init__(self, handler=BaseTestHandler, host=HOST, port=0):
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asyncore.dispatcher.__init__(self)
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self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
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self.set_reuse_addr()
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self.bind((host, port))
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self.listen(5)
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self.handler = handler
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@property
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def address(self):
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return self.socket.getsockname()[:2]
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def handle_accept(self):
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pair = self.accept()
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if pair is not None:
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self.handler(pair[0])
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def handle_error(self):
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raise
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class BaseClient(BaseTestHandler):
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def __init__(self, address):
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BaseTestHandler.__init__(self)
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self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
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self.connect(address)
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def handle_connect(self):
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pass
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class BaseTestAPI(unittest.TestCase):
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def tearDown(self):
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asyncore.close_all()
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def loop_waiting_for_flag(self, instance, timeout=5):
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timeout = float(timeout) / 100
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count = 100
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while asyncore.socket_map and count > 0:
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asyncore.loop(timeout=0.01, count=1, use_poll=self.use_poll)
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if instance.flag:
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return
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count -= 1
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time.sleep(timeout)
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self.fail("flag not set")
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def test_handle_connect(self):
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# make sure handle_connect is called on connect()
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class TestClient(BaseClient):
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def handle_connect(self):
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self.flag = True
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server = TCPServer()
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client = TestClient(server.address)
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self.loop_waiting_for_flag(client)
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def test_handle_accept(self):
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# make sure handle_accept() is called when a client connects
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class TestListener(BaseTestHandler):
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def __init__(self):
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BaseTestHandler.__init__(self)
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self.create_socket(socket.AF_INET, socket.SOCK_STREAM)
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self.bind((HOST, 0))
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self.listen(5)
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self.address = self.socket.getsockname()[:2]
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def handle_accept(self):
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self.flag = True
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server = TestListener()
|
|
client = BaseClient(server.address)
|
|
self.loop_waiting_for_flag(server)
|
|
|
|
def test_handle_read(self):
|
|
# make sure handle_read is called on data received
|
|
|
|
class TestClient(BaseClient):
|
|
def handle_read(self):
|
|
self.flag = True
|
|
|
|
class TestHandler(BaseTestHandler):
|
|
def __init__(self, conn):
|
|
BaseTestHandler.__init__(self, conn)
|
|
self.send('x' * 1024)
|
|
|
|
server = TCPServer(TestHandler)
|
|
client = TestClient(server.address)
|
|
self.loop_waiting_for_flag(client)
|
|
|
|
def test_handle_write(self):
|
|
# make sure handle_write is called
|
|
|
|
class TestClient(BaseClient):
|
|
def handle_write(self):
|
|
self.flag = True
|
|
|
|
server = TCPServer()
|
|
client = TestClient(server.address)
|
|
self.loop_waiting_for_flag(client)
|
|
|
|
def test_handle_close(self):
|
|
# make sure handle_close is called when the other end closes
|
|
# the connection
|
|
|
|
class TestClient(BaseClient):
|
|
|
|
def handle_read(self):
|
|
# in order to make handle_close be called we are supposed
|
|
# to make at least one recv() call
|
|
self.recv(1024)
|
|
|
|
def handle_close(self):
|
|
self.flag = True
|
|
self.close()
|
|
|
|
class TestHandler(BaseTestHandler):
|
|
def __init__(self, conn):
|
|
BaseTestHandler.__init__(self, conn)
|
|
self.close()
|
|
|
|
server = TCPServer(TestHandler)
|
|
client = TestClient(server.address)
|
|
self.loop_waiting_for_flag(client)
|
|
|
|
@unittest.skipIf(sys.platform.startswith("sunos"),
|
|
"OOB support is broken on Solaris")
|
|
def test_handle_expt(self):
|
|
# Make sure handle_expt is called on OOB data received.
|
|
# Note: this might fail on some platforms as OOB data is
|
|
# tenuously supported and rarely used.
|
|
|
|
if sys.platform == "darwin" and self.use_poll:
|
|
self.skipTest("poll may fail on macOS; see issue #28087")
|
|
|
|
class TestClient(BaseClient):
|
|
def handle_expt(self):
|
|
self.flag = True
|
|
|
|
class TestHandler(BaseTestHandler):
|
|
def __init__(self, conn):
|
|
BaseTestHandler.__init__(self, conn)
|
|
self.socket.send(chr(244), socket.MSG_OOB)
|
|
|
|
server = TCPServer(TestHandler)
|
|
client = TestClient(server.address)
|
|
self.loop_waiting_for_flag(client)
|
|
|
|
def test_handle_error(self):
|
|
|
|
class TestClient(BaseClient):
|
|
def handle_write(self):
|
|
1.0 / 0
|
|
def handle_error(self):
|
|
self.flag = True
|
|
try:
|
|
raise
|
|
except ZeroDivisionError:
|
|
pass
|
|
else:
|
|
raise Exception("exception not raised")
|
|
|
|
server = TCPServer()
|
|
client = TestClient(server.address)
|
|
self.loop_waiting_for_flag(client)
|
|
|
|
def test_connection_attributes(self):
|
|
server = TCPServer()
|
|
client = BaseClient(server.address)
|
|
|
|
# we start disconnected
|
|
self.assertFalse(server.connected)
|
|
self.assertTrue(server.accepting)
|
|
# this can't be taken for granted across all platforms
|
|
#self.assertFalse(client.connected)
|
|
self.assertFalse(client.accepting)
|
|
|
|
# execute some loops so that client connects to server
|
|
asyncore.loop(timeout=0.01, use_poll=self.use_poll, count=100)
|
|
self.assertFalse(server.connected)
|
|
self.assertTrue(server.accepting)
|
|
self.assertTrue(client.connected)
|
|
self.assertFalse(client.accepting)
|
|
|
|
# disconnect the client
|
|
client.close()
|
|
self.assertFalse(server.connected)
|
|
self.assertTrue(server.accepting)
|
|
self.assertFalse(client.connected)
|
|
self.assertFalse(client.accepting)
|
|
|
|
# stop serving
|
|
server.close()
|
|
self.assertFalse(server.connected)
|
|
self.assertFalse(server.accepting)
|
|
|
|
def test_create_socket(self):
|
|
s = asyncore.dispatcher()
|
|
s.create_socket(socket.AF_INET, socket.SOCK_STREAM)
|
|
self.assertEqual(s.socket.family, socket.AF_INET)
|
|
self.assertEqual(s.socket.type, socket.SOCK_STREAM)
|
|
|
|
def test_bind(self):
|
|
s1 = asyncore.dispatcher()
|
|
s1.create_socket(socket.AF_INET, socket.SOCK_STREAM)
|
|
s1.bind((HOST, 0))
|
|
s1.listen(5)
|
|
port = s1.socket.getsockname()[1]
|
|
|
|
s2 = asyncore.dispatcher()
|
|
s2.create_socket(socket.AF_INET, socket.SOCK_STREAM)
|
|
# EADDRINUSE indicates the socket was correctly bound
|
|
self.assertRaises(socket.error, s2.bind, (HOST, port))
|
|
|
|
def test_set_reuse_addr(self):
|
|
sock = socket.socket()
|
|
try:
|
|
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
|
|
except socket.error:
|
|
unittest.skip("SO_REUSEADDR not supported on this platform")
|
|
else:
|
|
# if SO_REUSEADDR succeeded for sock we expect asyncore
|
|
# to do the same
|
|
s = asyncore.dispatcher(socket.socket())
|
|
self.assertFalse(s.socket.getsockopt(socket.SOL_SOCKET,
|
|
socket.SO_REUSEADDR))
|
|
s.create_socket(socket.AF_INET, socket.SOCK_STREAM)
|
|
s.set_reuse_addr()
|
|
self.assertTrue(s.socket.getsockopt(socket.SOL_SOCKET,
|
|
socket.SO_REUSEADDR))
|
|
finally:
|
|
sock.close()
|
|
|
|
@unittest.skipUnless(threading, 'Threading required for this test.')
|
|
@test_support.reap_threads
|
|
def test_quick_connect(self):
|
|
# see: http://bugs.python.org/issue10340
|
|
server = TCPServer()
|
|
t = threading.Thread(target=lambda: asyncore.loop(timeout=0.1, count=500))
|
|
t.start()
|
|
self.addCleanup(t.join)
|
|
|
|
for x in xrange(20):
|
|
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
|
|
s.settimeout(.2)
|
|
s.setsockopt(socket.SOL_SOCKET, socket.SO_LINGER,
|
|
struct.pack('ii', 1, 0))
|
|
try:
|
|
s.connect(server.address)
|
|
except socket.error:
|
|
pass
|
|
finally:
|
|
s.close()
|
|
|
|
|
|
class TestAPI_UseSelect(BaseTestAPI):
|
|
use_poll = False
|
|
|
|
@unittest.skipUnless(hasattr(select, 'poll'), 'select.poll required')
|
|
class TestAPI_UsePoll(BaseTestAPI):
|
|
use_poll = True
|
|
|
|
|
|
def test_main():
|
|
tests = [HelperFunctionTests, DispatcherTests, DispatcherWithSendTests,
|
|
DispatcherWithSendTests_UsePoll, TestAPI_UseSelect,
|
|
TestAPI_UsePoll, FileWrapperTest]
|
|
run_unittest(*tests)
|
|
|
|
if __name__ == "__main__":
|
|
test_main()
|