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✏️ Editing: test_postfix.py

# Copyright (c) Twisted Matrix Laboratories.
# See LICENSE for details.

"""
Test cases for twisted.protocols.postfix module.
"""

from typing import Dict, List, Tuple

from twisted.protocols import postfix
from twisted.test.proto_helpers import StringTransport
from twisted.trial import unittest

class PostfixTCPMapQuoteTests(unittest.TestCase):
    data = [
        # (raw, quoted, [aliasQuotedForms]),
        (b"foo", b"foo"),
        (b"foo bar", b"foo%20bar"),
        (b"foo\tbar", b"foo%09bar"),
        (b"foo\nbar", b"foo%0Abar", b"foo%0abar"),
        (
            b"foo\r\nbar",
            b"foo%0D%0Abar",
            b"foo%0D%0abar",
            b"foo%0d%0Abar",
            b"foo%0d%0abar",
        ),
        (b"foo ", b"foo%20"),
        (b" foo", b"%20foo"),
    ]

def testData(self):
        for entry in self.data:
            raw = entry[0]
            quoted = entry[1:]

self.assertEqual(postfix.quote(raw), quoted[0])
            for q in quoted:
                self.assertEqual(postfix.unquote(q), raw)

class PostfixTCPMapServerTestCase:
    data: Dict[bytes, bytes] = {
        # 'key': 'value',
    }

chat: List[Tuple[bytes, bytes]] = [
        # (input, expected_output),
    ]

def test_chat(self):
        """
        Test that I{get} and I{put} commands are responded to correctly by
        L{postfix.PostfixTCPMapServer} when its factory is an instance of
        L{postifx.PostfixTCPMapDictServerFactory}.
        """
        factory = postfix.PostfixTCPMapDictServerFactory(self.data)
        transport = StringTransport()

protocol = postfix.PostfixTCPMapServer()
        protocol.service = factory
        protocol.factory = factory
        protocol.makeConnection(transport)

for input, expected_output in self.chat:
            protocol.lineReceived(input)
            self.assertEqual(
                transport.value(),
                expected_output,
                "For %r, expected %r but got %r"
                % (input, expected_output, transport.value()),
            )
            transport.clear()
        protocol.setTimeout(None)

def test_deferredChat(self):
        """
        Test that I{get} and I{put} commands are responded to correctly by
        L{postfix.PostfixTCPMapServer} when its factory is an instance of
        L{postifx.PostfixTCPMapDeferringDictServerFactory}.
        """
        factory = postfix.PostfixTCPMapDeferringDictServerFactory(self.data)
        transport = StringTransport()

protocol = postfix.PostfixTCPMapServer()
        protocol.service = factory
        protocol.factory = factory
        protocol.makeConnection(transport)

for input, expected_output in self.chat:
            protocol.lineReceived(input)
            self.assertEqual(
                transport.value(),
                expected_output,
                "For {!r}, expected {!r} but got {!r}".format(
                    input, expected_output, transport.value()
                ),
            )
            transport.clear()
        protocol.setTimeout(None)

def test_getException(self):
        """
        If the factory throws an exception,
        error code 400 must be returned.
        """

class ErrorFactory:
            """
            Factory that raises an error on key lookup.
            """

def get(self, key):
                raise Exception("This is a test error")

server = postfix.PostfixTCPMapServer()
        server.factory = ErrorFactory()
        server.transport = StringTransport()
        server.lineReceived(b"get example")
        self.assertEqual(server.transport.value(), b"400 This is a test error\n")

class ValidTests(PostfixTCPMapServerTestCase, unittest.TestCase):
    data = {
        b"foo": b"ThisIs Foo",
        b"bar": b" bar really is found\r\n",
    }
    chat = [
        (b"get", b"400 Command 'get' takes 1 parameters.\n"),
        (b"get foo bar", b"500 \n"),
        (b"put", b"400 Command 'put' takes 2 parameters.\n"),
        (b"put foo", b"400 Command 'put' takes 2 parameters.\n"),
        (b"put foo bar baz", b"500 put is not implemented yet.\n"),
        (b"put foo bar", b"500 put is not implemented yet.\n"),
        (b"get foo", b"200 ThisIs%20Foo\n"),
        (b"get bar", b"200 %20bar%20really%20is%20found%0D%0A\n"),
        (b"get baz", b"500 \n"),
        (b"foo", b"400 unknown command\n"),
    ]

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