pyCraft/tests/test_packets.py

93 lines
3.1 KiB
Python

# -*- coding: utf-8 -*-
import unittest
import string
from zlib import decompress
from random import choice
from minecraft import SUPPORTED_PROTOCOL_VERSIONS
from minecraft.networking.connection import ConnectionContext
from minecraft.networking.types import VarInt
from minecraft.networking.packets import (
PacketBuffer, ChatPacket, KeepAlivePacket, PacketListener)
class PacketSerializatonTest(unittest.TestCase):
def test_packet(self):
for protocol_version in SUPPORTED_PROTOCOL_VERSIONS:
context = ConnectionContext(protocol_version=protocol_version)
packet = ChatPacket(context)
packet.message = u"κόσμε"
packet_buffer = PacketBuffer()
packet.write(packet_buffer)
packet_buffer.reset_cursor()
# Read the length and packet id
VarInt.read(packet_buffer)
packet_id = VarInt.read(packet_buffer)
self.assertEqual(packet_id, packet.id)
deserialized = ChatPacket(context)
deserialized.read(packet_buffer)
self.assertEqual(packet.message, deserialized.message)
def test_compressed_packet(self):
for protocol_version in SUPPORTED_PROTOCOL_VERSIONS:
context = ConnectionContext(protocol_version=protocol_version)
msg = ''.join(choice(string.ascii_lowercase) for i in range(500))
packet = ChatPacket(context)
packet.message = msg
self.write_read_packet(packet, 20)
self.write_read_packet(packet, -1)
def write_read_packet(self, packet, compression_threshold):
for protocol_version in SUPPORTED_PROTOCOL_VERSIONS:
context = ConnectionContext(protocol_version=protocol_version)
packet_buffer = PacketBuffer()
packet.write(packet_buffer, compression_threshold)
packet_buffer.reset_cursor()
VarInt.read(packet_buffer)
compressed_size = VarInt.read(packet_buffer)
if compressed_size > 0:
decompressed = decompress(packet_buffer.read(compressed_size))
packet_buffer.reset()
packet_buffer.send(decompressed)
packet_buffer.reset_cursor()
packet_id = VarInt.read(packet_buffer)
self.assertEqual(packet_id, packet.id)
deserialized = ChatPacket(context)
deserialized.read(packet_buffer)
self.assertEqual(packet.message, deserialized.message)
class PacketListenerTest(unittest.TestCase):
def test_listener(self):
message = "hello world"
def test_packet(chat_packet):
self.assertEqual(chat_packet.message, message)
for protocol_version in SUPPORTED_PROTOCOL_VERSIONS:
context = ConnectionContext(protocol_version=protocol_version)
listener = PacketListener(test_packet, ChatPacket)
packet = ChatPacket(context).set_values(message=message)
uncalled_packet = KeepAlivePacket().set_values(keep_alive_id=0)
listener.call_packet(packet)
listener.call_packet(uncalled_packet)