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__init__.py	475 B	-rw-r--r--
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crash_test_dummy.py	549 B	-rw-r--r--
ignore_test_failure.py	30.72 KB	-rw-r--r--
iosim.py	17.74 KB	-rw-r--r--
key.pem.no_trailing_newline	1.67 KB	-rw-r--r--
mock_win32process.py	1.27 KB	-rw-r--r--
myrebuilder1.py	151 B	-rw-r--r--
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plugin_basic.py	901 B	-rw-r--r--
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proto_helpers.py	1.34 KB	-rw-r--r--
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server.pem	4.34 KB	-rw-r--r--
ssl_helpers.py	1.61 KB	-rw-r--r--
stdio_test_consumer.py	1.14 KB	-rw-r--r--
stdio_test_halfclose.py	2 KB	-rw-r--r--
stdio_test_hostpeer.py	1.06 KB	-rw-r--r--
stdio_test_lastwrite.py	1.13 KB	-rw-r--r--
stdio_test_loseconn.py	1.55 KB	-rw-r--r--
stdio_test_producer.py	1.45 KB	-rw-r--r--
stdio_test_write.py	902 B	-rw-r--r--
stdio_test_writeseq.py	894 B	-rw-r--r--
test_abstract.py	3.35 KB	-rw-r--r--
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test_amp.py	107.92 KB	-rw-r--r--
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test_lockfile.py	14.98 KB	-rw-r--r--
test_log.py	35.23 KB	-rw-r--r--
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test_loopback.py	13.99 KB	-rw-r--r--
test_main.py	2.12 KB	-rw-r--r--
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test_process.py	85.16 KB	-rw-r--r--
test_protocols.py	7.16 KB	-rw-r--r--
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testutils.py	5.06 KB	-rw-r--r--

Code Editor : test_loopback.py

# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.

"""
Test case for L{twisted.protocols.loopback}.
"""

from zope.interface import implementer

from twisted.internet import defer, interfaces, reactor
from twisted.internet.defer import Deferred
from twisted.internet.interfaces import IAddress, IPullProducer, IPushProducer
from twisted.internet.protocol import Protocol
from twisted.protocols import basic, loopback
from twisted.trial import unittest

class SimpleProtocol(basic.LineReceiver):
    def __init__(self):
        self.conn = defer.Deferred()
        self.lines = []
        self.connLost = []

def connectionMade(self):
        self.conn.callback(None)

def lineReceived(self, line):
        self.lines.append(line)

def connectionLost(self, reason):
        self.connLost.append(reason)

class DoomProtocol(SimpleProtocol):
    i = 0

def lineReceived(self, line):
        self.i += 1
        if self.i < 4:
            # by this point we should have connection closed,
            # but just in case we didn't we won't ever send 'Hello 4'
            self.sendLine(b"Hello %d" % (self.i,))
        SimpleProtocol.lineReceived(self, line)
        if self.lines[-1] == b"Hello 3":
            self.transport.loseConnection()

class LoopbackTestCaseMixin:
    def testRegularFunction(self):
        s = SimpleProtocol()
        c = SimpleProtocol()

def sendALine(result):
            s.sendLine(b"THIS IS LINE ONE!")
            s.transport.loseConnection()

s.conn.addCallback(sendALine)

def check(ignored):
            self.assertEqual(c.lines, [b"THIS IS LINE ONE!"])
            self.assertEqual(len(s.connLost), 1)
            self.assertEqual(len(c.connLost), 1)

d = defer.maybeDeferred(self.loopbackFunc, s, c)
        d.addCallback(check)
        return d

def testSneakyHiddenDoom(self):
        s = DoomProtocol()
        c = DoomProtocol()

def sendALine(result):
            s.sendLine(b"DOOM LINE")

s.conn.addCallback(sendALine)

def check(ignored):
            self.assertEqual(s.lines, [b"Hello 1", b"Hello 2", b"Hello 3"])
            self.assertEqual(
                c.lines, [b"DOOM LINE", b"Hello 1", b"Hello 2", b"Hello 3"]
            )
            self.assertEqual(len(s.connLost), 1)
            self.assertEqual(len(c.connLost), 1)

d = defer.maybeDeferred(self.loopbackFunc, s, c)
        d.addCallback(check)
        return d

class LoopbackAsyncTests(LoopbackTestCaseMixin, unittest.TestCase):
    loopbackFunc = staticmethod(loopback.loopbackAsync)

def test_makeConnection(self):
        """
        Test that the client and server protocol both have makeConnection
        invoked on them by loopbackAsync.
        """

class TestProtocol(Protocol):
            transport = None

def makeConnection(self, transport):
                self.transport = transport

server = TestProtocol()
        client = TestProtocol()
        loopback.loopbackAsync(server, client)
        self.assertIsNotNone(client.transport)
        self.assertIsNotNone(server.transport)

def _hostpeertest(self, get, testServer):
        """
        Test one of the permutations of client/server host/peer.
        """

class TestProtocol(Protocol):
            def makeConnection(self, transport):
                Protocol.makeConnection(self, transport)
                self.onConnection.callback(transport)

if testServer:
            server = TestProtocol()
            d = server.onConnection = Deferred()
            client = Protocol()
        else:
            server = Protocol()
            client = TestProtocol()
            d = client.onConnection = Deferred()

loopback.loopbackAsync(server, client)

def connected(transport):
            host = getattr(transport, get)()
            self.assertTrue(IAddress.providedBy(host))

return d.addCallback(connected)

def test_serverHost(self):
        """
        Test that the server gets a transport with a properly functioning
        implementation of L{ITransport.getHost}.
        """
        return self._hostpeertest("getHost", True)

def test_serverPeer(self):
        """
        Like C{test_serverHost} but for L{ITransport.getPeer}
        """
        return self._hostpeertest("getPeer", True)

def test_clientHost(self, get="getHost"):
        """
        Test that the client gets a transport with a properly functioning
        implementation of L{ITransport.getHost}.
        """
        return self._hostpeertest("getHost", False)

def test_clientPeer(self):
        """
        Like C{test_clientHost} but for L{ITransport.getPeer}.
        """
        return self._hostpeertest("getPeer", False)

def _greetingtest(self, write, testServer):
        """
        Test one of the permutations of write/writeSequence client/server.

@param write: The name of the method to test, C{"write"} or
            C{"writeSequence"}.
        """

class GreeteeProtocol(Protocol):
            bytes = b""

def dataReceived(self, bytes):
                self.bytes += bytes
                if self.bytes == b"bytes":
                    self.received.callback(None)

class GreeterProtocol(Protocol):
            def connectionMade(self):
                if write == "write":
                    self.transport.write(b"bytes")
                else:
                    self.transport.writeSequence([b"byt", b"es"])

if testServer:
            server = GreeterProtocol()
            client = GreeteeProtocol()
            d = client.received = Deferred()
        else:
            server = GreeteeProtocol()
            d = server.received = Deferred()
            client = GreeterProtocol()

loopback.loopbackAsync(server, client)
        return d

def test_clientGreeting(self):
        """
        Test that on a connection where the client speaks first, the server
        receives the bytes sent by the client.
        """
        return self._greetingtest("write", False)

def test_clientGreetingSequence(self):
        """
        Like C{test_clientGreeting}, but use C{writeSequence} instead of
        C{write} to issue the greeting.
        """
        return self._greetingtest("writeSequence", False)

def test_serverGreeting(self, write="write"):
        """
        Test that on a connection where the server speaks first, the client
        receives the bytes sent by the server.
        """
        return self._greetingtest("write", True)

def test_serverGreetingSequence(self):
        """
        Like C{test_serverGreeting}, but use C{writeSequence} instead of
        C{write} to issue the greeting.
        """
        return self._greetingtest("writeSequence", True)

def _producertest(self, producerClass):
        toProduce = [b"%d" % (i,) for i in range(0, 10)]

class ProducingProtocol(Protocol):
            def connectionMade(self):
                self.producer = producerClass(list(toProduce))
                self.producer.start(self.transport)

class ReceivingProtocol(Protocol):
            bytes = b""

def dataReceived(self, data):
                self.bytes += data
                if self.bytes == b"".join(toProduce):
                    self.received.callback((client, server))

server = ProducingProtocol()
        client = ReceivingProtocol()
        client.received = Deferred()

loopback.loopbackAsync(server, client)
        return client.received

def test_pushProducer(self):
        """
        Test a push producer registered against a loopback transport.
        """

@implementer(IPushProducer)
        class PushProducer:
            resumed = False

def __init__(self, toProduce):
                self.toProduce = toProduce

def resumeProducing(self):
                self.resumed = True

def start(self, consumer):
                self.consumer = consumer
                consumer.registerProducer(self, True)
                self._produceAndSchedule()

def _produceAndSchedule(self):
                if self.toProduce:
                    self.consumer.write(self.toProduce.pop(0))
                    reactor.callLater(0, self._produceAndSchedule)
                else:
                    self.consumer.unregisterProducer()

d = self._producertest(PushProducer)

def finished(results):
            (client, server) = results
            self.assertFalse(
                server.producer.resumed,
                "Streaming producer should not have been resumed.",
            )

d.addCallback(finished)
        return d

def test_pullProducer(self):
        """
        Test a pull producer registered against a loopback transport.
        """

@implementer(IPullProducer)
        class PullProducer:
            def __init__(self, toProduce):
                self.toProduce = toProduce

def start(self, consumer):
                self.consumer = consumer
                self.consumer.registerProducer(self, False)

def resumeProducing(self):
                self.consumer.write(self.toProduce.pop(0))
                if not self.toProduce:
                    self.consumer.unregisterProducer()

return self._producertest(PullProducer)

def test_writeNotReentrant(self):
        """
        L{loopback.loopbackAsync} does not call a protocol's C{dataReceived}
        method while that protocol's transport's C{write} method is higher up
        on the stack.
        """

class Server(Protocol):
            def dataReceived(self, bytes):
                self.transport.write(b"bytes")

class Client(Protocol):
            ready = False

def connectionMade(self):
                reactor.callLater(0, self.go)

def go(self):
                self.transport.write(b"foo")
                self.ready = True

def dataReceived(self, bytes):
                self.wasReady = self.ready
                self.transport.loseConnection()

server = Server()
        client = Client()
        d = loopback.loopbackAsync(client, server)

def cbFinished(ignored):
            self.assertTrue(client.wasReady)

d.addCallback(cbFinished)
        return d

def test_pumpPolicy(self):
        """
        The callable passed as the value for the C{pumpPolicy} parameter to
        L{loopbackAsync} is called with a L{_LoopbackQueue} of pending bytes
        and a protocol to which they should be delivered.
        """
        pumpCalls = []

def dummyPolicy(queue, target):
            bytes = []
            while queue:
                bytes.append(queue.get())
            pumpCalls.append((target, bytes))

client = Protocol()
        server = Protocol()

finished = loopback.loopbackAsync(server, client, dummyPolicy)
        self.assertEqual(pumpCalls, [])

client.transport.write(b"foo")
        client.transport.write(b"bar")
        server.transport.write(b"baz")
        server.transport.write(b"quux")
        server.transport.loseConnection()

def cbComplete(ignored):
            self.assertEqual(
                pumpCalls,
                # The order here is somewhat arbitrary.  The implementation
                # happens to always deliver data to the client first.
                [(client, [b"baz", b"quux", None]), (server, [b"foo", b"bar"])],
            )

finished.addCallback(cbComplete)
        return finished

def test_identityPumpPolicy(self):
        """
        L{identityPumpPolicy} is a pump policy which calls the target's
        C{dataReceived} method one for each string in the queue passed to it.
        """
        bytes = []
        client = Protocol()
        client.dataReceived = bytes.append
        queue = loopback._LoopbackQueue()
        queue.put(b"foo")
        queue.put(b"bar")
        queue.put(None)

loopback.identityPumpPolicy(queue, client)

self.assertEqual(bytes, [b"foo", b"bar"])

def test_collapsingPumpPolicy(self):
        """
        L{collapsingPumpPolicy} is a pump policy which calls the target's
        C{dataReceived} only once with all of the strings in the queue passed
        to it joined together.
        """
        bytes = []
        client = Protocol()
        client.dataReceived = bytes.append
        queue = loopback._LoopbackQueue()
        queue.put(b"foo")
        queue.put(b"bar")
        queue.put(None)

loopback.collapsingPumpPolicy(queue, client)

self.assertEqual(bytes, [b"foobar"])

class LoopbackTCPTests(LoopbackTestCaseMixin, unittest.TestCase):
    loopbackFunc = staticmethod(loopback.loopbackTCP)

class LoopbackUNIXTests(LoopbackTestCaseMixin, unittest.TestCase):
    loopbackFunc = staticmethod(loopback.loopbackUNIX)

if interfaces.IReactorUNIX(reactor, None) is None:
        skip = "Current reactor does not support UNIX sockets"

class LoopbackRelayTest(unittest.TestCase):
    """
    Test for L{twisted.protocols.loopback.LoopbackRelay}
    """

class Receiver(Protocol):
        """
        Simple Receiver class used for testing LoopbackRelay
        """

data = b""

def dataReceived(self, data):
            "Accumulate received data for verification"
            self.data += data

def test_write(self):
        "Test to verify that the write function works as expected"
        receiver = self.Receiver()
        relay = loopback.LoopbackRelay(receiver)
        relay.write(b"abc")
        relay.write(b"def")
        self.assertEqual(receiver.data, b"")
        relay.clearBuffer()
        self.assertEqual(receiver.data, b"abcdef")

def test_writeSequence(self):
        "Test to verify that the writeSequence function works as expected"
        receiver = self.Receiver()
        relay = loopback.LoopbackRelay(receiver)
        relay.writeSequence([b"The ", b"quick ", b"brown ", b"fox "])
        relay.writeSequence([b"jumps ", b"over ", b"the lazy dog"])
        self.assertEqual(receiver.data, b"")
        relay.clearBuffer()
        self.assertEqual(receiver.data, b"The quick brown fox jumps over the lazy dog")

${this.title}

Code Editor : test_loopback.py