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Diffstat (limited to 'Lib/test/test_asyncore.py')
| -rw-r--r-- | Lib/test/test_asyncore.py | 406 |
1 files changed, 406 insertions, 0 deletions
diff --git a/Lib/test/test_asyncore.py b/Lib/test/test_asyncore.py new file mode 100644 index 0000000..7602b9f --- /dev/null +++ b/Lib/test/test_asyncore.py @@ -0,0 +1,406 @@ +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 StringIO import StringIO + +HOST = "127.0.0.1" +PORT = 54329 + +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 = socket.socket(socket.AF_INET, socket.SOCK_STREAM) + serv.settimeout(3) + serv.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) + serv.bind(("", PORT)) + serv.listen(5) + try: + conn, addr = serv.accept() + except socket.timeout: + pass + else: + n = 200 + while n > 0: + data = conn.recv(10) + # keep everything except for the newline terminator + buf.write(data.replace('\n', '')) + if '\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) + +## Commented out these tests because test a non-documented function +## (which is actually public, why it's not documented?). Anyway, the +## tests *and* the function 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) +## Note even that these constants are mentioned in the select +## documentation, as a parameter of "poll" method "register", but are +## not explicit declared as constants of the module. +## . Facundo Batista +## +## 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() + cap = StringIO() + threading.Thread(target=capture_server, args=(self.evt,cap)).start() + time.sleep(1) # Give server time to initialize + + data = "Suppose there isn't a 16-ton weight?"*5 + d = dispatcherwithsend_noread() + d.create_socket(socket.AF_INET, socket.SOCK_STREAM) + d.connect((HOST, PORT)) + d.send(data) + d.send('\n') + + n = 1000 + while d.out_buffer and n > 0: + asyncore.poll() + n -= 1 + + self.evt.wait() + + self.assertEqual(cap.getvalue(), data) + + +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!" + file(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), "It's not dead") + self.assertEqual(w.read(6), ", 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(file(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() |