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# Copyright (c) str4d <str4d@mail.i2p>
# See COPYING for details.
from builtins import object
try:
# Python 3
from unittest.mock import Mock
except:
# Python 2 (library)
from mock import Mock
from twisted.internet import defer
from twisted.internet.error import ConnectionLost, ConnectionRefusedError
from twisted.internet.protocol import ClientFactory
from twisted.python import failure
from twisted.test import proto_helpers
from txi2p.sam import constants as c
connectionLostFailure = failure.Failure(ConnectionLost())
connectionRefusedFailure = failure.Failure(ConnectionRefusedError())
class SAMProtocolTestMixin(object):
def makeProto(self, *a, **kw):
protoClass = kw.pop('_protoClass', self.protocol)
fac = ClientFactory(*a, **kw)
fac.nickname = 'foo'
fac.privKey = None
fac.port = None
fac.localPort = None
fac.options = {}
fac.sigType = None
fac.protocol = protoClass
fac.resultNotOK = Mock()
def raise_(reason):
raise reason.value
fac.connectionFailed = lambda reason: raise_(reason)
proto = fac.buildProtocol(None)
transport = proto_helpers.StringTransport()
transport.abortConnection = lambda: None
proto.makeConnection(transport)
return fac, proto
def test_initSendsHello(self):
fac, proto = self.makeProto()
self.assertSubstring('HELLO VERSION', str(proto.transport.value()))
def test_helloReturnsError(self):
fac, proto = self.makeProto()
proto.transport.clear()
proto.dataReceived(b'HELLO REPLY RESULT=I2P_ERROR MESSAGE="foo bar baz"\n')
fac.resultNotOK.assert_called_with('I2P_ERROR', 'foo bar baz')
def test_pingReceived(self):
fac, proto = self.makeProto()
self.addCleanup(proto.receiver.stopPinging)
proto.transport.clear()
# Enable keepalive
proto.receiver.currentRule = 'State_keepalive'
proto._parser._setupInterp()
proto.dataReceived(b'PING\n')
self.assertEquals(
b'PONG\n',
proto.transport.value())
def test_pingReceivedWithData(self):
fac, proto = self.makeProto()
self.addCleanup(proto.receiver.stopPinging)
proto.transport.clear()
# Enable keepalive
proto.receiver.currentRule = 'State_keepalive'
proto._parser._setupInterp()
proto.dataReceived(b'PING some random data\n')
self.assertEquals(
b'PONG some random data\n',
proto.transport.value())
def test_pingReceivedResetsTimeout(self):
fac, proto = self.makeProto()
self.addCleanup(proto.receiver.stopPinging)
proto.transport.clear()
# Enable keepalive
proto.receiver.currentRule = 'State_keepalive'
proto._parser._setupInterp()
proto.receiver._sendPing()
self.assertEquals(
'PING %s\n' % proto.receiver.lastPing,
proto.transport.value().decode('utf-8'))
self.assertTrue(proto.receiver.pingTimeout.active())
proto.transport.clear()
proto.dataReceived(b'PING\n')
self.assertEquals(
b'PONG\n',
proto.transport.value())
self.assertFalse(proto.receiver.pingTimeout.active())
def test_validPongResponseResetsTimeout(self):
fac, proto = self.makeProto()
self.addCleanup(proto.receiver.stopPinging)
proto.transport.clear()
# Enable keepalive
proto.receiver.currentRule = 'State_keepalive'
proto._parser._setupInterp()
proto.receiver._sendPing()
self.assertEquals(
'PING %s\n' % proto.receiver.lastPing,
proto.transport.value().decode('utf-8'))
self.assertTrue(proto.receiver.pingTimeout.active())
proto.transport.clear()
proto.dataReceived(('PONG %s\n' % proto.receiver.lastPing).encode('utf-8'))
self.assertFalse(proto.receiver.pingTimeout.active())
def test_invalidPongResponseDoesNotResetTimeout(self):
fac, proto = self.makeProto()
self.addCleanup(proto.receiver.stopPinging)
proto.transport.clear()
# Enable keepalive
proto.receiver.currentRule = 'State_keepalive'
proto._parser._setupInterp()
proto.receiver._sendPing()
self.assertEquals(
'PING %s\n' % proto.receiver.lastPing,
proto.transport.value().decode('utf-8'))
self.assertTrue(proto.receiver.pingTimeout.active())
proto.transport.clear()
proto.dataReceived(b'PONG not what was expected\n')
self.assertTrue(proto.receiver.pingTimeout.active())
class SAMFactoryTestMixin(object):
def setUp(self):
self.aborted = []
def makeProto(self, *a, **kw):
fac = self.factory(*a, **kw)
proto = fac.buildProtocol(None)
transport = proto_helpers.StringTransport()
transport.abortConnection = lambda: self.aborted.append(True)
proto.makeConnection(transport)
return fac, proto
def test_cancellation(self):
fac, proto = self.makeProto(*self.blankFactoryArgs)
fac.deferred.cancel()
self.assert_(self.aborted)
return self.assertFailure(fac.deferred, defer.CancelledError)
def test_cancellationBeforeFailure(self):
fac, proto = self.makeProto(*self.blankFactoryArgs)
fac.deferred.cancel()
proto.connectionLost(connectionLostFailure)
self.assert_(self.aborted)
return self.assertFailure(fac.deferred, defer.CancelledError)
def test_cancellationAfterFailure(self):
fac, proto = self.makeProto(*self.blankFactoryArgs)
proto.connectionLost(connectionLostFailure)
fac.deferred.cancel()
self.assertFalse(self.aborted)
return self.assertFailure(fac.deferred, ConnectionLost)
def test_clientConnectionFailed(self):
fac, proto = self.makeProto(*self.blankFactoryArgs)
fac.clientConnectionFailed(None, connectionRefusedFailure)
return self.assertFailure(fac.deferred, ConnectionRefusedError)
def test_resultNotOK(self):
fac, proto = self.makeProto(*self.blankFactoryArgs)
for result, error in list(c.samErrorMap.items()):
self.assertRaises(error, fac.resultNotOK, result, '')
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