Ausgabe der neuen DB Einträge

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

@@ -0,0 +1,90 @@
+# Copyright (c) Twisted Matrix Laboratories.
+# See LICENSE for details.
+
+
+"""
+Test cases for twisted.protocols.stateful
+"""
+
+from twisted.trial.unittest import TestCase
+from twisted.protocols.test import test_basic
+from twisted.protocols.stateful import StatefulProtocol
+
+from struct import pack, unpack, calcsize
+
+
+class MyInt32StringReceiver(StatefulProtocol):
+    """
+    A stateful Int32StringReceiver.
+    """
+    MAX_LENGTH = 99999
+    structFormat = "!I"
+    prefixLength = calcsize(structFormat)
+
+    def getInitialState(self):
+        return self._getHeader, 4
+
+
+    def lengthLimitExceeded(self, length):
+        self.transport.loseConnection()
+
+
+    def _getHeader(self, msg):
+        length, = unpack("!i", msg)
+        if length > self.MAX_LENGTH:
+            self.lengthLimitExceeded(length)
+            return
+        return self._getString, length
+
+
+    def _getString(self, msg):
+        self.stringReceived(msg)
+        return self._getHeader, 4
+
+
+    def stringReceived(self, msg):
+        """
+        Override this.
+        """
+        raise NotImplementedError
+
+
+    def sendString(self, data):
+        """
+        Send an int32-prefixed string to the other end of the connection.
+        """
+        self.transport.write(pack(self.structFormat, len(data)) + data)
+
+
+
+class TestInt32(MyInt32StringReceiver):
+    def connectionMade(self):
+        self.received = []
+
+
+    def stringReceived(self, s):
+        self.received.append(s)
+
+    MAX_LENGTH = 50
+    closed = 0
+
+
+    def connectionLost(self, reason):
+        self.closed = 1
+
+
+
+class Int32Tests(TestCase, test_basic.IntNTestCaseMixin):
+    protocol = TestInt32
+    strings = [b"a", b"b" * 16]
+    illegalStrings = [b"\x10\x00\x00\x00aaaaaa"]
+    partialStrings = [b"\x00\x00\x00", b"hello there", ""]
+
+    def test_bigReceive(self):
+        r = self.getProtocol()
+        big = b""
+        for s in self.strings * 4:
+            big += pack("!i", len(s)) + s
+        r.dataReceived(big)
+        self.assertEqual(r.received, self.strings * 4)
+