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Merged revisions 63132 via svnmerge from svn+ssh://pythondev@svn.python.org/python/trunk ........ r63132 | alexandre.vassalotti | 2008-05-11 22:11:22 -0400 (Sun, 11 May 2008) | 4 lines Updated all import statements to use the new socketserver module name. Renamed socketserver module in its own documentation. Renamed documentation references. ........
256 lines
8.5 KiB
Python
256 lines
8.5 KiB
Python
"""
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Test suite for socketserver.
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"""
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import contextlib
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import errno
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import imp
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import os
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import select
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import signal
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import socket
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import tempfile
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import threading
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import time
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import unittest
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import socketserver
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import test.test_support
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from test.test_support import reap_children, verbose, TestSkipped
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from test.test_support import TESTFN as TEST_FILE
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test.test_support.requires("network")
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TEST_STR = b"hello world\n"
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HOST = test.test_support.HOST
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HAVE_UNIX_SOCKETS = hasattr(socket, "AF_UNIX")
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HAVE_FORKING = hasattr(os, "fork") and os.name != "os2"
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def signal_alarm(n):
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"""Call signal.alarm when it exists (i.e. not on Windows)."""
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if hasattr(signal, 'alarm'):
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signal.alarm(n)
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def receive(sock, n, timeout=20):
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r, w, x = select.select([sock], [], [], timeout)
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if sock in r:
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return sock.recv(n)
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else:
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raise RuntimeError("timed out on %r" % (sock,))
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if HAVE_UNIX_SOCKETS:
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class ForkingUnixStreamServer(socketserver.ForkingMixIn,
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socketserver.UnixStreamServer):
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pass
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class ForkingUnixDatagramServer(socketserver.ForkingMixIn,
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socketserver.UnixDatagramServer):
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pass
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@contextlib.contextmanager
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def simple_subprocess(testcase):
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pid = os.fork()
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if pid == 0:
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# Don't throw an exception; it would be caught by the test harness.
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os._exit(72)
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yield None
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pid2, status = os.waitpid(pid, 0)
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testcase.assertEquals(pid2, pid)
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testcase.assertEquals(72 << 8, status)
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class SocketServerTest(unittest.TestCase):
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"""Test all socket servers."""
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def setUp(self):
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signal_alarm(20) # Kill deadlocks after 20 seconds.
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self.port_seed = 0
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self.test_files = []
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def tearDown(self):
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signal_alarm(0) # Didn't deadlock.
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reap_children()
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for fn in self.test_files:
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try:
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os.remove(fn)
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except os.error:
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pass
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self.test_files[:] = []
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def pickaddr(self, proto):
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if proto == socket.AF_INET:
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return (HOST, 0)
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else:
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# XXX: We need a way to tell AF_UNIX to pick its own name
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# like AF_INET provides port==0.
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dir = None
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if os.name == 'os2':
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dir = '\socket'
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fn = tempfile.mktemp(prefix='unix_socket.', dir=dir)
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if os.name == 'os2':
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# AF_UNIX socket names on OS/2 require a specific prefix
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# which can't include a drive letter and must also use
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# backslashes as directory separators
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if fn[1] == ':':
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fn = fn[2:]
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if fn[0] in (os.sep, os.altsep):
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fn = fn[1:]
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if os.sep == '/':
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fn = fn.replace(os.sep, os.altsep)
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else:
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fn = fn.replace(os.altsep, os.sep)
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self.test_files.append(fn)
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return fn
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def make_server(self, addr, svrcls, hdlrbase):
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class MyServer(svrcls):
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def handle_error(self, request, client_address):
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self.close_request(request)
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self.server_close()
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raise
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class MyHandler(hdlrbase):
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def handle(self):
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line = self.rfile.readline()
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self.wfile.write(line)
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if verbose: print("creating server")
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server = MyServer(addr, MyHandler)
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self.assertEquals(server.server_address, server.socket.getsockname())
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return server
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def run_server(self, svrcls, hdlrbase, testfunc):
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server = self.make_server(self.pickaddr(svrcls.address_family),
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svrcls, hdlrbase)
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# We had the OS pick a port, so pull the real address out of
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# the server.
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addr = server.server_address
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if verbose:
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print("ADDR =", addr)
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print("CLASS =", svrcls)
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t = threading.Thread(
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name='%s serving' % svrcls,
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target=server.serve_forever,
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# Short poll interval to make the test finish quickly.
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# Time between requests is short enough that we won't wake
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# up spuriously too many times.
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kwargs={'poll_interval':0.01})
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t.setDaemon(True) # In case this function raises.
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t.start()
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if verbose: print("server running")
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for i in range(3):
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if verbose: print("test client", i)
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testfunc(svrcls.address_family, addr)
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if verbose: print("waiting for server")
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server.shutdown()
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t.join()
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if verbose: print("done")
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def stream_examine(self, proto, addr):
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s = socket.socket(proto, socket.SOCK_STREAM)
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s.connect(addr)
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s.sendall(TEST_STR)
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buf = data = receive(s, 100)
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while data and b'\n' not in buf:
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data = receive(s, 100)
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buf += data
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self.assertEquals(buf, TEST_STR)
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s.close()
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def dgram_examine(self, proto, addr):
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s = socket.socket(proto, socket.SOCK_DGRAM)
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s.sendto(TEST_STR, addr)
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buf = data = receive(s, 100)
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while data and b'\n' not in buf:
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data = receive(s, 100)
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buf += data
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self.assertEquals(buf, TEST_STR)
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s.close()
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def test_TCPServer(self):
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self.run_server(socketserver.TCPServer,
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socketserver.StreamRequestHandler,
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self.stream_examine)
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def test_ThreadingTCPServer(self):
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self.run_server(socketserver.ThreadingTCPServer,
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socketserver.StreamRequestHandler,
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self.stream_examine)
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if HAVE_FORKING:
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def test_ForkingTCPServer(self):
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with simple_subprocess(self):
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self.run_server(socketserver.ForkingTCPServer,
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socketserver.StreamRequestHandler,
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self.stream_examine)
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if HAVE_UNIX_SOCKETS:
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def test_UnixStreamServer(self):
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self.run_server(socketserver.UnixStreamServer,
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socketserver.StreamRequestHandler,
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self.stream_examine)
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def test_ThreadingUnixStreamServer(self):
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self.run_server(socketserver.ThreadingUnixStreamServer,
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socketserver.StreamRequestHandler,
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self.stream_examine)
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if HAVE_FORKING:
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def test_ForkingUnixStreamServer(self):
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with simple_subprocess(self):
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self.run_server(ForkingUnixStreamServer,
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socketserver.StreamRequestHandler,
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self.stream_examine)
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def test_UDPServer(self):
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self.run_server(socketserver.UDPServer,
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socketserver.DatagramRequestHandler,
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self.dgram_examine)
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def test_ThreadingUDPServer(self):
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self.run_server(socketserver.ThreadingUDPServer,
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socketserver.DatagramRequestHandler,
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self.dgram_examine)
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if HAVE_FORKING:
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def test_ForkingUDPServer(self):
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with simple_subprocess(self):
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self.run_server(socketserver.ForkingUDPServer,
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socketserver.DatagramRequestHandler,
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self.dgram_examine)
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# Alas, on Linux (at least) recvfrom() doesn't return a meaningful
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# client address so this cannot work:
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# if HAVE_UNIX_SOCKETS:
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# def test_UnixDatagramServer(self):
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# self.run_server(socketserver.UnixDatagramServer,
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# socketserver.DatagramRequestHandler,
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# self.dgram_examine)
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#
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# def test_ThreadingUnixDatagramServer(self):
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# self.run_server(socketserver.ThreadingUnixDatagramServer,
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# socketserver.DatagramRequestHandler,
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# self.dgram_examine)
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#
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# if HAVE_FORKING:
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# def test_ForkingUnixDatagramServer(self):
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# self.run_server(socketserver.ForkingUnixDatagramServer,
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# socketserver.DatagramRequestHandler,
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# self.dgram_examine)
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def test_main():
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if imp.lock_held():
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# If the import lock is held, the threads will hang
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raise TestSkipped("can't run when import lock is held")
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test.test_support.run_unittest(SocketServerTest)
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if __name__ == "__main__":
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test_main()
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signal_alarm(3) # Shutdown shouldn't take more than 3 seconds.
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