Ausgabe der neuen DB Einträge

venv/lib/python3.9/site-packages/twisted/test/test_tpfile.py

@@ -0,0 +1,55 @@
+
+# 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')
+