cpython.git - https://github.com/python/cpython.git

diff options

author	Victor Stinner <victor.stinner@gmail.com>	2013-11-03 12:53:12 (GMT)
committer	Victor Stinner <victor.stinner@gmail.com>	2013-11-03 12:53:12 (GMT)
commit	e1b1592fd42f23dadde9e7dbd387f3b43cb5cc15 (patch)
tree	241d3979f6fbbc7a429b78f6c5b86220d4d1f60f /Lib/test/test_socket.py
parent	4babb9111fddb0a4b746a3fda6e1627c827fc056 (diff)
download	cpython-e1b1592fd42f23dadde9e7dbd387f3b43cb5cc15.zip cpython-e1b1592fd42f23dadde9e7dbd387f3b43cb5cc15.tar.gz cpython-e1b1592fd42f23dadde9e7dbd387f3b43cb5cc15.tar.bz2

Issue #19424: Fix a compiler warning on comparing signed/unsigned size_t

Patch written by Zachary Ware.

Diffstat (limited to 'Lib/test/test_socket.py')

0 files changed, 0 insertions, 0 deletions

n119'>119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357

import socket
import select
import telnetlib
import time
import contextlib

from unittest import TestCase
from test import support
threading = support.import_module('threading')

HOST = support.HOST

def server(evt, serv):
    serv.listen(5)
    evt.set()
    try:
        conn, addr = serv.accept()
        conn.close()
    except socket.timeout:
        pass
    finally:
        serv.close()

class GeneralTests(TestCase):

    def setUp(self):
        self.evt = threading.Event()
        self.sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        self.sock.settimeout(60)  # Safety net. Look issue 11812
        self.port = support.bind_port(self.sock)
        self.thread = threading.Thread(target=server, args=(self.evt,self.sock))
        self.thread.setDaemon(True)
        self.thread.start()
        self.evt.wait()

    def tearDown(self):
        self.thread.join()
        del self.thread  # Clear out any dangling Thread objects.

    def testBasic(self):
        # connects
        telnet = telnetlib.Telnet(HOST, self.port)
        telnet.sock.close()

    def testTimeoutDefault(self):
        self.assertTrue(socket.getdefaulttimeout() is None)
        socket.setdefaulttimeout(30)
        try:
            telnet = telnetlib.Telnet(HOST, self.port)
        finally:
            socket.setdefaulttimeout(None)
        self.assertEqual(telnet.sock.gettimeout(), 30)
        telnet.sock.close()

    def testTimeoutNone(self):
        # None, having other default
        self.assertTrue(socket.getdefaulttimeout() is None)
        socket.setdefaulttimeout(30)
        try:
            telnet = telnetlib.Telnet(HOST, self.port, timeout=None)
        finally:
            socket.setdefaulttimeout(None)
        self.assertTrue(telnet.sock.gettimeout() is None)
        telnet.sock.close()

    def testTimeoutValue(self):
        telnet = telnetlib.Telnet(HOST, self.port, timeout=30)
        self.assertEqual(telnet.sock.gettimeout(), 30)
        telnet.sock.close()

    def testTimeoutOpen(self):
        telnet = telnetlib.Telnet()
        telnet.open(HOST, self.port, timeout=30)
        self.assertEqual(telnet.sock.gettimeout(), 30)
        telnet.sock.close()

class SocketStub(object):
    ''' a socket proxy that re-defines sendall() '''
    def __init__(self, reads=[]):
        self.reads = reads
        self.writes = []
        self.block = False
    def sendall(self, data):
        self.writes.append(data)
    def recv(self, size):
        out = b''
        while self.reads and len(out) < size:
            out += self.reads.pop(0)
        if len(out) > size:
            self.reads.insert(0, out[size:])
            out = out[:size]
        return out

class TelnetAlike(telnetlib.Telnet):
    def fileno(self):
        raise NotImplementedError()
    def close(self): pass
    def sock_avail(self):
        return (not self.sock.block)
    def msg(self, msg, *args):
        with support.captured_stdout() as out:
            telnetlib.Telnet.msg(self, msg, *args)
        self._messages += out.getvalue()
        return

def new_select(*s_args):
    block = False
    for l in s_args:
        for fob in l:
            if isinstance(fob, TelnetAlike):
                block = fob.sock.block
    if block:
        return [[], [], []]
    else:
        return s_args

@contextlib.contextmanager
def test_socket(reads):
    def new_conn(*ignored):
        return SocketStub(reads)
    try:
        old_conn = socket.create_connection
        socket.create_connection = new_conn
        yield None
    finally:
        socket.create_connection = old_conn
    return

def test_telnet(reads=[], cls=TelnetAlike):
    ''' return a telnetlib.Telnet object that uses a SocketStub with
        reads queued up to be read '''
    for x in reads:
        assert type(x) is bytes, x
    with test_socket(reads):
        telnet = cls('dummy', 0)
        telnet._messages = '' # debuglevel output
    return telnet

class ReadTests(TestCase):
    def setUp(self):
        self.old_select = select.select
        select.select = new_select
    def tearDown(self):
        select.select = self.old_select

    def test_read_until(self):
        """
        read_until(expected, timeout=None)
        test the blocking version of read_util
        """
        want = [b'xxxmatchyyy']
        telnet = test_telnet(want)
        data = telnet.read_until(b'match')
        self.assertEqual(data, b'xxxmatch', msg=(telnet.cookedq, telnet.rawq, telnet.sock.reads))

        reads = [b'x' * 50, b'match', b'y' * 50]
        expect = b''.join(reads[:-1])
        telnet = test_telnet(reads)
        data = telnet.read_until(b'match')
        self.assertEqual(data, expect)


    def test_read_all(self):
        """
        read_all()
          Read all data until EOF; may block.
        """
        reads = [b'x' * 500, b'y' * 500, b'z' * 500]
        expect = b''.join(reads)
        telnet = test_telnet(reads)
        data = telnet.read_all()
        self.assertEqual(data, expect)
        return

    def test_read_some(self):
        """
        read_some()
          Read at least one byte or EOF; may block.
        """
        # test 'at least one byte'
        telnet = test_telnet([b'x' * 500])
        data = telnet.read_some()
        self.assertTrue(len(data) >= 1)
        # test EOF
        telnet = test_telnet()
        data = telnet.read_some()
        self.assertEqual(b'', data)

    def _read_eager(self, func_name):
        """
        read_*_eager()
          Read all data available already queued or on the socket,
          without blocking.
        """
        want = b'x' * 100
        telnet = test_telnet([want])
        func = getattr(telnet, func_name)
        telnet.sock.block = True
        self.assertEqual(b'', func())
        telnet.sock.block = False
        data = b''
        while True:
            try:
                data += func()
            except EOFError:
                break
        self.assertEqual(data, want)

    def test_read_eager(self):
        # read_eager and read_very_eager make the same gaurantees
        # (they behave differently but we only test the gaurantees)
        self._read_eager('read_eager')
        self._read_eager('read_very_eager')
        # NB -- we need to test the IAC block which is mentioned in the
        # docstring but not in the module docs

    def read_very_lazy(self):
        want = b'x' * 100
        telnet = test_telnet([want])
        self.assertEqual(b'', telnet.read_very_lazy())
        while telnet.sock.reads:
            telnet.fill_rawq()
        data = telnet.read_very_lazy()
        self.assertEqual(want, data)
        self.assertRaises(EOFError, telnet.read_very_lazy)

    def test_read_lazy(self):
        want = b'x' * 100
        telnet = test_telnet([want])
        self.assertEqual(b'', telnet.read_lazy())
        data = b''
        while True:
            try:
                read_data = telnet.read_lazy()
                data += read_data
                if not read_data:
                    telnet.fill_rawq()
            except EOFError:
                break
            self.assertTrue(want.startswith(data))
        self.assertEqual(data, want)

class nego_collector(object):
    def __init__(self, sb_getter=None):
        self.seen = b''
        self.sb_getter = sb_getter
        self.sb_seen = b''

    def do_nego(self, sock, cmd, opt):
        self.seen += cmd + opt
        if cmd == tl.SE and self.sb_getter:
            sb_data = self.sb_getter()
            self.sb_seen += sb_data

tl = telnetlib

class WriteTests(TestCase):
    '''The only thing that write does is replace each tl.IAC for
    tl.IAC+tl.IAC'''

    def test_write(self):
        data_sample = [b'data sample without IAC',
                       b'data sample with' + tl.IAC + b' one IAC',
                       b'a few' + tl.IAC + tl.IAC + b' iacs' + tl.IAC,
                       tl.IAC,
                       b'']
        for data in data_sample:
            telnet = test_telnet()
            telnet.write(data)
            written = b''.join(telnet.sock.writes)
            self.assertEqual(data.replace(tl.IAC,tl.IAC+tl.IAC), written)

class OptionTests(TestCase):
    # RFC 854 commands
    cmds = [tl.AO, tl.AYT, tl.BRK, tl.EC, tl.EL, tl.GA, tl.IP, tl.NOP]

    def _test_command(self, data):
        """ helper for testing IAC + cmd """
        telnet = test_telnet(data)
        data_len = len(b''.join(data))
        nego = nego_collector()
        telnet.set_option_negotiation_callback(nego.do_nego)
        txt = telnet.read_all()
        cmd = nego.seen
        self.assertTrue(len(cmd) > 0) # we expect at least one command
        self.assertIn(cmd[:1], self.cmds)
        self.assertEqual(cmd[1:2], tl.NOOPT)
        self.assertEqual(data_len, len(txt + cmd))
        nego.sb_getter = None # break the nego => telnet cycle

    def test_IAC_commands(self):
        for cmd in self.cmds:
            self._test_command([tl.IAC, cmd])
            self._test_command([b'x' * 100, tl.IAC, cmd, b'y'*100])
            self._test_command([b'x' * 10, tl.IAC, cmd, b'y'*10])
        # all at once
        self._test_command([tl.IAC + cmd for (cmd) in self.cmds])

    def test_SB_commands(self):
        # RFC 855, subnegotiations portion
        send = [tl.IAC + tl.SB + tl.IAC + tl.SE,
                tl.IAC + tl.SB + tl.IAC + tl.IAC + tl.IAC + tl.SE,
                tl.IAC + tl.SB + tl.IAC + tl.IAC + b'aa' + tl.IAC + tl.SE,
                tl.IAC + tl.SB + b'bb' + tl.IAC + tl.IAC + tl.IAC + tl.SE,
                tl.IAC + tl.SB + b'cc' + tl.IAC + tl.IAC + b'dd' + tl.IAC + tl.SE,
               ]
        telnet = test_telnet(send)
        nego = nego_collector(telnet.read_sb_data)
        telnet.set_option_negotiation_callback(nego.do_nego)
        txt = telnet.read_all()
        self.assertEqual(txt, b'')
        want_sb_data = tl.IAC + tl.IAC + b'aabb' + tl.IAC + b'cc' + tl.IAC + b'dd'
        self.assertEqual(nego.sb_seen, want_sb_data)
        self.assertEqual(b'', telnet.read_sb_data())
        nego.sb_getter = None # break the nego => telnet cycle

    def test_debuglevel_reads(self):
        # test all the various places that self.msg(...) is called
        given_a_expect_b = [
            # Telnet.fill_rawq
            (b'a', ": recv b''\n"),
            # Telnet.process_rawq
            (tl.IAC + bytes([88]), ": IAC 88 not recognized\n"),
            (tl.IAC + tl.DO + bytes([1]), ": IAC DO 1\n"),
            (tl.IAC + tl.DONT + bytes([1]), ": IAC DONT 1\n"),
            (tl.IAC + tl.WILL + bytes([1]), ": IAC WILL 1\n"),
            (tl.IAC + tl.WONT + bytes([1]), ": IAC WONT 1\n"),
           ]
        for a, b in given_a_expect_b:
            telnet = test_telnet([a])
            telnet.set_debuglevel(1)
            txt = telnet.read_all()
            self.assertIn(b, telnet._messages)
        return

    def test_debuglevel_write(self):
        telnet = test_telnet()
        telnet.set_debuglevel(1)
        telnet.write(b'xxx')
        expected = "send b'xxx'\n"
        self.assertIn(expected, telnet._messages)

    def test_debug_accepts_str_port(self):
        # Issue 10695
        with test_socket([]):
            telnet = TelnetAlike('dummy', '0')
            telnet._messages = ''
        telnet.set_debuglevel(1)
        telnet.msg('test')
        self.assertRegex(telnet._messages, r'0.*test')


def test_main(verbose=None):
    support.run_unittest(GeneralTests, ReadTests, WriteTests, OptionTests)

if __name__ == '__main__':
    test_main()


context:
space:
mode: