56 lines
1.6 KiB
Python
56 lines
1.6 KiB
Python
|
|
# Copyright (c) Twisted Matrix Laboratories.
|
|
# See LICENSE for details.
|
|
|
|
|
|
from twisted.trial import unittest
|
|
from twisted.protocols import loopback
|
|
from twisted.protocols import basic
|
|
from twisted.internet import protocol, abstract
|
|
|
|
from io import BytesIO
|
|
|
|
class BufferingServer(protocol.Protocol):
|
|
buffer = b''
|
|
|
|
def dataReceived(self, data):
|
|
self.buffer += data
|
|
|
|
class FileSendingClient(protocol.Protocol):
|
|
def __init__(self, f):
|
|
self.f = f
|
|
|
|
|
|
def connectionMade(self):
|
|
s = basic.FileSender()
|
|
d = s.beginFileTransfer(self.f, self.transport, lambda x: x)
|
|
d.addCallback(lambda r: self.transport.loseConnection())
|
|
|
|
class FileSenderTests(unittest.TestCase):
|
|
def testSendingFile(self):
|
|
testStr = b'xyz' * 100 + b'abc' * 100 + b'123' * 100
|
|
s = BufferingServer()
|
|
c = FileSendingClient(BytesIO(testStr))
|
|
|
|
d = loopback.loopbackTCP(s, c)
|
|
d.addCallback(lambda x : self.assertEqual(s.buffer, testStr))
|
|
return d
|
|
|
|
|
|
def testSendingEmptyFile(self):
|
|
fileSender = basic.FileSender()
|
|
consumer = abstract.FileDescriptor()
|
|
consumer.connected = 1
|
|
emptyFile = BytesIO(b'')
|
|
|
|
d = fileSender.beginFileTransfer(emptyFile, consumer, lambda x: x)
|
|
|
|
# The producer will be immediately exhausted, and so immediately
|
|
# unregistered
|
|
self.assertIsNone(consumer.producer)
|
|
|
|
# Which means the Deferred from FileSender should have been called
|
|
self.assertTrue(d.called,
|
|
'producer unregistered with deferred being called')
|
|
|