| import asyncore |
| import unittest |
| import select |
| import os |
| import socket |
| import threading |
| import sys |
| import time |
| |
| from test import test_support |
| from test.test_support import TESTFN, run_unittest, unlink |
| from io import BytesIO |
| from io import StringIO |
| |
| HOST = test_support.HOST |
| |
| class dummysocket: |
| def __init__(self): |
| self.closed = False |
| |
| def close(self): |
| self.closed = True |
| |
| def fileno(self): |
| return 42 |
| |
| class dummychannel: |
| def __init__(self): |
| self.socket = dummysocket() |
| |
| class exitingdummy: |
| def __init__(self): |
| pass |
| |
| def handle_read_event(self): |
| raise asyncore.ExitNow() |
| |
| handle_write_event = handle_read_event |
| handle_expt_event = handle_read_event |
| |
| class crashingdummy: |
| def __init__(self): |
| self.error_handled = False |
| |
| def handle_read_event(self): |
| raise Exception() |
| |
| handle_write_event = handle_read_event |
| handle_expt_event = handle_read_event |
| |
| def handle_error(self): |
| self.error_handled = True |
| |
| # used when testing senders; just collects what it gets until newline is sent |
| def capture_server(evt, buf, serv): |
| try: |
| serv.listen(5) |
| conn, addr = serv.accept() |
| except socket.timeout: |
| pass |
| else: |
| n = 200 |
| while n > 0: |
| r, w, e = select.select([conn], [], []) |
| if r: |
| data = conn.recv(10) |
| # keep everything except for the newline terminator |
| buf.write(data.replace(b'\n', b'')) |
| if b'\n' in data: |
| break |
| n -= 1 |
| time.sleep(0.01) |
| |
| conn.close() |
| finally: |
| serv.close() |
| evt.set() |
| |
| |
| class HelperFunctionTests(unittest.TestCase): |
| def test_readwriteexc(self): |
| # Check exception handling behavior of read, write and _exception |
| |
| # check that ExitNow exceptions in the object handler method |
| # bubbles all the way up through asyncore read/write/_exception calls |
| tr1 = exitingdummy() |
| self.assertRaises(asyncore.ExitNow, asyncore.read, tr1) |
| self.assertRaises(asyncore.ExitNow, asyncore.write, tr1) |
| self.assertRaises(asyncore.ExitNow, asyncore._exception, tr1) |
| |
| # check that an exception other than ExitNow in the object handler |
| # method causes the handle_error method to get called |
| tr2 = crashingdummy() |
| asyncore.read(tr2) |
| self.assertEqual(tr2.error_handled, True) |
| |
| tr2 = crashingdummy() |
| asyncore.write(tr2) |
| self.assertEqual(tr2.error_handled, True) |
| |
| tr2 = crashingdummy() |
| asyncore._exception(tr2) |
| self.assertEqual(tr2.error_handled, True) |
| |
| # asyncore.readwrite uses constants in the select module that |
| # are not present in Windows systems (see this thread: |
| # http://mail.python.org/pipermail/python-list/2001-October/109973.html) |
| # These constants should be present as long as poll is available |
| |
| if hasattr(select, 'poll'): |
| def test_readwrite(self): |
| # Check that correct methods are called by readwrite() |
| |
| class testobj: |
| def __init__(self): |
| self.read = False |
| self.write = False |
| self.expt = False |
| |
| def handle_read_event(self): |
| self.read = True |
| |
| def handle_write_event(self): |
| self.write = True |
| |
| def handle_expt_event(self): |
| self.expt = True |
| |
| def handle_error(self): |
| self.error_handled = True |
| |
| for flag in (select.POLLIN, select.POLLPRI): |
| tobj = testobj() |
| self.assertEqual(tobj.read, False) |
| asyncore.readwrite(tobj, flag) |
| self.assertEqual(tobj.read, True) |
| |
| # check that ExitNow exceptions in the object handler method |
| # bubbles all the way up through asyncore readwrite call |
| tr1 = exitingdummy() |
| self.assertRaises(asyncore.ExitNow, asyncore.readwrite, tr1, flag) |
| |
| # check that an exception other than ExitNow in the object handler |
| # method causes the handle_error method to get called |
| tr2 = crashingdummy() |
| asyncore.readwrite(tr2, flag) |
| self.assertEqual(tr2.error_handled, True) |
| |
| tobj = testobj() |
| self.assertEqual(tobj.write, False) |
| asyncore.readwrite(tobj, select.POLLOUT) |
| self.assertEqual(tobj.write, True) |
| |
| # check that ExitNow exceptions in the object handler method |
| # bubbles all the way up through asyncore readwrite call |
| tr1 = exitingdummy() |
| self.assertRaises(asyncore.ExitNow, asyncore.readwrite, tr1, |
| select.POLLOUT) |
| |
| # check that an exception other than ExitNow in the object handler |
| # method causes the handle_error method to get called |
| tr2 = crashingdummy() |
| asyncore.readwrite(tr2, select.POLLOUT) |
| self.assertEqual(tr2.error_handled, True) |
| |
| for flag in (select.POLLERR, select.POLLHUP, select.POLLNVAL): |
| tobj = testobj() |
| self.assertEqual(tobj.expt, False) |
| asyncore.readwrite(tobj, flag) |
| self.assertEqual(tobj.expt, True) |
| |
| # check that ExitNow exceptions in the object handler method |
| # bubbles all the way up through asyncore readwrite calls |
| tr1 = exitingdummy() |
| self.assertRaises(asyncore.ExitNow, asyncore.readwrite, tr1, flag) |
| |
| # check that an exception other than ExitNow in the object handler |
| # method causes the handle_error method to get called |
| tr2 = crashingdummy() |
| asyncore.readwrite(tr2, flag) |
| self.assertEqual(tr2.error_handled, True) |
| |
| def test_closeall(self): |
| self.closeall_check(False) |
| |
| def test_closeall_default(self): |
| self.closeall_check(True) |
| |
| def closeall_check(self, usedefault): |
| # Check that close_all() closes everything in a given map |
| |
| l = [] |
| testmap = {} |
| for i in range(10): |
| c = dummychannel() |
| l.append(c) |
| self.assertEqual(c.socket.closed, False) |
| testmap[i] = c |
| |
| if usedefault: |
| socketmap = asyncore.socket_map |
| try: |
| asyncore.socket_map = testmap |
| asyncore.close_all() |
| finally: |
| testmap, asyncore.socket_map = asyncore.socket_map, socketmap |
| else: |
| asyncore.close_all(testmap) |
| |
| self.assertEqual(len(testmap), 0) |
| |
| for c in l: |
| self.assertEqual(c.socket.closed, True) |
| |
| def test_compact_traceback(self): |
| try: |
| raise Exception("I don't like spam!") |
| except: |
| real_t, real_v, real_tb = sys.exc_info() |
| r = asyncore.compact_traceback() |
| else: |
| self.fail("Expected exception") |
| |
| (f, function, line), t, v, info = r |
| self.assertEqual(os.path.split(f)[-1], 'test_asyncore.py') |
| self.assertEqual(function, 'test_compact_traceback') |
| self.assertEqual(t, real_t) |
| self.assertEqual(v, real_v) |
| self.assertEqual(info, '[%s|%s|%s]' % (f, function, line)) |
| |
| |
| class DispatcherTests(unittest.TestCase): |
| def setUp(self): |
| pass |
| |
| def tearDown(self): |
| asyncore.close_all() |
| |
| def test_basic(self): |
| d = asyncore.dispatcher() |
| self.assertEqual(d.readable(), True) |
| self.assertEqual(d.writable(), True) |
| |
| def test_repr(self): |
| d = asyncore.dispatcher() |
| self.assertEqual(repr(d), '<asyncore.dispatcher at %#x>' % id(d)) |
| |
| def test_log(self): |
| d = asyncore.dispatcher() |
| |
| # capture output of dispatcher.log() (to stderr) |
| fp = StringIO() |
| stderr = sys.stderr |
| l1 = "Lovely spam! Wonderful spam!" |
| l2 = "I don't like spam!" |
| try: |
| sys.stderr = fp |
| d.log(l1) |
| d.log(l2) |
| finally: |
| sys.stderr = stderr |
| |
| lines = fp.getvalue().splitlines() |
| self.assertEquals(lines, ['log: %s' % l1, 'log: %s' % l2]) |
| |
| def test_log_info(self): |
| d = asyncore.dispatcher() |
| |
| # capture output of dispatcher.log_info() (to stdout via print) |
| fp = StringIO() |
| stdout = sys.stdout |
| l1 = "Have you got anything without spam?" |
| l2 = "Why can't she have egg bacon spam and sausage?" |
| l3 = "THAT'S got spam in it!" |
| try: |
| sys.stdout = fp |
| d.log_info(l1, 'EGGS') |
| d.log_info(l2) |
| d.log_info(l3, 'SPAM') |
| finally: |
| sys.stdout = stdout |
| |
| lines = fp.getvalue().splitlines() |
| if __debug__: |
| expected = ['EGGS: %s' % l1, 'info: %s' % l2, 'SPAM: %s' % l3] |
| else: |
| expected = ['EGGS: %s' % l1, 'SPAM: %s' % l3] |
| |
| self.assertEquals(lines, expected) |
| |
| def test_unhandled(self): |
| d = asyncore.dispatcher() |
| |
| # capture output of dispatcher.log_info() (to stdout via print) |
| fp = StringIO() |
| stdout = sys.stdout |
| try: |
| sys.stdout = fp |
| d.handle_expt() |
| d.handle_read() |
| d.handle_write() |
| d.handle_connect() |
| d.handle_accept() |
| finally: |
| sys.stdout = stdout |
| |
| lines = fp.getvalue().splitlines() |
| expected = ['warning: unhandled exception', |
| 'warning: unhandled read event', |
| 'warning: unhandled write event', |
| 'warning: unhandled connect event', |
| 'warning: unhandled accept event'] |
| self.assertEquals(lines, expected) |
| |
| |
| |
| class dispatcherwithsend_noread(asyncore.dispatcher_with_send): |
| def readable(self): |
| return False |
| |
| def handle_connect(self): |
| pass |
| |
| class DispatcherWithSendTests(unittest.TestCase): |
| usepoll = False |
| |
| def setUp(self): |
| pass |
| |
| def tearDown(self): |
| asyncore.close_all() |
| |
| def test_send(self): |
| self.evt = threading.Event() |
| self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) |
| self.sock.settimeout(3) |
| self.port = test_support.bind_port(self.sock) |
| |
| cap = BytesIO() |
| args = (self.evt, cap, self.sock) |
| threading.Thread(target=capture_server, args=args).start() |
| |
| # wait a little longer for the server to initialize (it sometimes |
| # refuses connections on slow machines without this wait) |
| time.sleep(0.2) |
| |
| data = b"Suppose there isn't a 16-ton weight?" |
| d = dispatcherwithsend_noread() |
| d.create_socket(socket.AF_INET, socket.SOCK_STREAM) |
| d.connect((HOST, self.port)) |
| |
| # give time for socket to connect |
| time.sleep(0.1) |
| |
| d.send(data) |
| d.send(data) |
| d.send(b'\n') |
| |
| n = 1000 |
| while d.out_buffer and n > 0: |
| asyncore.poll() |
| n -= 1 |
| |
| self.evt.wait() |
| |
| self.assertEqual(cap.getvalue(), data*2) |
| |
| |
| class DispatcherWithSendTests_UsePoll(DispatcherWithSendTests): |
| usepoll = True |
| |
| if hasattr(asyncore, 'file_wrapper'): |
| class FileWrapperTest(unittest.TestCase): |
| def setUp(self): |
| self.d = "It's not dead, it's sleeping!" |
| open(TESTFN, 'w').write(self.d) |
| |
| def tearDown(self): |
| unlink(TESTFN) |
| |
| def test_recv(self): |
| fd = os.open(TESTFN, os.O_RDONLY) |
| w = asyncore.file_wrapper(fd) |
| |
| self.assertEqual(w.fd, fd) |
| self.assertEqual(w.fileno(), fd) |
| self.assertEqual(w.recv(13), b"It's not dead") |
| self.assertEqual(w.read(6), b", it's") |
| w.close() |
| self.assertRaises(OSError, w.read, 1) |
| |
| def test_send(self): |
| d1 = "Come again?" |
| d2 = "I want to buy some cheese." |
| fd = os.open(TESTFN, os.O_WRONLY | os.O_APPEND) |
| w = asyncore.file_wrapper(fd) |
| |
| w.write(d1) |
| w.send(d2) |
| w.close() |
| self.assertEqual(open(TESTFN).read(), self.d + d1 + d2) |
| |
| |
| def test_main(): |
| tests = [HelperFunctionTests, DispatcherTests, DispatcherWithSendTests, |
| DispatcherWithSendTests_UsePoll] |
| if hasattr(asyncore, 'file_wrapper'): |
| tests.append(FileWrapperTest) |
| |
| run_unittest(*tests) |
| |
| if __name__ == "__main__": |
| test_main() |